JP2019030204A - Electric wiring block join body, electric connection box, and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify an electrical connection work between electrical wiring blocks. SOLUTION: Each bus bar is between a plurality of electric wiring blocks 10 and 20 for electrically connecting an electronic component EP and a bus bar 30 and 40 internally, and two electric wiring blocks to be joined to each other. The electrical connection structure 50 comprises an electrical connection structure 50 for coupling the electrical connection portions 35 and 45 of the above, and the electrical connection structure has an insertion space 51 into which at least one of the respective electrical connection portions to be overlapped with each other is inserted, and an insertion space. Each bus bar remains overlapped with each other by having a portion of the wall to form and allowing each of the overlapping electrical connections to be pressed against each other in the insertion space. Provided with at least one pressing portion 52 to be coupled. [Selection diagram] Fig. 3

Description

  The present invention relates to an electrical wiring block assembly, an electrical junction box, and a wire harness.

  2. Description of the Related Art Conventionally, an electrical junction box including a casing and electronic components accommodated in the casing is known (Patent Documents 1 to 5 below). For example, in an electrical junction box, an electronic wiring block in which an electronic component is accommodated is accommodated in the casing, whereby the electronic component is accommodated in the casing. In this electrical junction box, a plurality of electrical wiring blocks may be housed in a single housing, and the electrical components of the connected electrical wiring blocks are electrically connected by joining the electrical wiring blocks together. Let The electronic components are electrically connected to each other using electric wires provided with terminals or connectors at both ends. In this case, each electric wiring block is also provided with a terminal or a connector for physically and electrically connecting the end of the electric wire. In addition, the electronic components can be electrically connected using a plate-like bus bar. For example, each electric wiring block is provided with a plate-like bus bar that is electrically connected to an electronic component housed therein. In the electrical connection box in this case, the electronic parts are electrically connected by connecting the bus bars of the electrical wiring blocks that are connected to each other by the connection member. Examples of the connecting member include a screw fixing member (a male screw member and a female screw member), a relay bus bar having a tuning fork terminal into which the bus bar is inserted for each bus bar (Patent Document 6 below), and a plate into which the bus bar is inserted. A relay bus bar (Patent Document 7 below) having a spring-like clip for each bus bar.

JP 2004-201448 A JP-A-9-308047 JP 2007-129790 A JP 2004-166322 A JP 2002-315156 A JP 2012-213276 A JP 2011-172393 A

  The conventional electrical junction box requires the following work in order to electrically connect the electronic components of the electrical wiring blocks that are connected to each other. In the conventional electrical junction box, the terminal or connector at the end of the electric wire is connected to the terminal or connector of each electric wiring block, or the tuning fork terminal or clip of the relay bus bar is inserted into the bus bar of each electric wiring block. There is a need to. Thus, the conventional electrical junction box has room for improvement so that the electrical connection work between the electrical wiring blocks to be joined becomes simpler.

  Accordingly, an object of the present invention is to provide an electrical wiring block assembly, an electrical connection box, and a wire harness that facilitate electrical connection work between electrical wiring blocks.

  In order to achieve the above object, an electrical wiring block assembly according to the present invention includes a plurality of electrical wiring blocks that electrically connect an electronic component and a bus bar inward, and the two electrical components to be joined to each other. An electrical connection structure that couples the electrical connection portions of the bus bars between the wiring blocks, and the electrical connection structure is inserted to insert at least one of the electrical connection portions that overlap each other. A space and a part of a wall surface forming the insertion space, and allowing each of the electrical connections overlapped with each other in the insertion space to be pressed between each other, thereby allowing each of the bus bars to And at least one pressing portion that is coupled in a state where the electrical connection portion is overlapped.

  Here, the electrical connection structure includes the other electrical connection portion that overlaps one electrical connection portion, and the one pressing portion that is disposed to face the other electrical connection portion with a space therebetween. A connecting portion that connects the other electrical connecting portion and the pressing portion, and the insertion space formed between the other electrical connecting portion, the pressing portion, and the connecting portion, and the insertion space. It is desirable that the inserted one electrical connection portion is sandwiched between the other electrical connection portion and the pressing portion.

  In addition, the electrical connection structure is formed between the two pressing portions that are arranged to face each other with a space therebetween, a connecting portion that connects the two pressing portions, and the two pressing portions and the connecting portion. It is preferable that the connecting member has a inserted insertion space, and the connecting member sandwiches each of the electrical connection portions inserted into the insertion space between the two pressing portions.

  In addition, the bus bar has the electrical connection portion arranged along the arrangement direction of the two electrical wiring blocks after joining, and a terminal connection portion side to which the electronic component is electrically connected, and It has a main connecting part that connects the electric connecting part and the terminal connecting part side, and at least one of the two main bus bars is between the electric connecting part and the terminal connecting part side. It is desirable to have a relative position variable unit that varies the relative position.

  In addition, a holding mechanism is provided between the electrical connection portion and the connection member to maintain a state in which the two electrical connection portions are held by the connection member, and the holding mechanism is at least one of the two electrical connection portions. A first locking portion provided on one side, and provided on at least one of the two pressing portions of the connecting member, and the first locking portion so that the holding state can be maintained in the holding state. A second locking portion that can be locked between the first locking portion and the second locking portion, and forming one of the first locking portion and the second locking portion as a protrusion. It is desirable that the other is formed as an insertion portion into which the projection is inserted.

  In addition, the bus bar has the electrical connection portion arranged along the arrangement direction of the two electrical wiring blocks after joining, and a terminal connection portion side to which the electronic component is electrically connected, and The electrical connection portion is formed into a plate shape that is bent and projected in an L shape from the plate-like end portion on the terminal connection portion side, and the electrical connection portion at the end portion on the terminal connection portion side. A through hole is formed in the boundary portion, and the connection member includes two electrical connection portions that are overlapped in a state where the end portions on the terminal connection portion side of the respective bus bars are arranged on the same plane. A first protrusion that is sandwiched by one of the pressing parts, protrudes from one of the pressing parts, and is inserted into the through hole of one of the bus bars when the two electrical connection parts are inserted into the insertion space. Part and the other pressing part A second protruding portion that is inserted and inserted into the through hole of the other bus bar in the inserted state, and a third protruding portion that protrudes from the connecting portion in the same direction as the first and second protruding portions; The third projection part sandwiches a boundary wall body at the boundary part of one of the bus bars with the first projection part in the insertion completion state, and in the insertion completion state. It is desirable that the boundary wall body in the boundary portion of the other bus bar is sandwiched between the second protrusions.

  The first protrusion has a locking protrusion that is locked to the boundary wall of one of the bus bars when the connecting member is moved in the protruding direction of the electrical connecting portion in the insertion completed state. The second protrusion has a locking protrusion that is locked to the boundary wall body of the other bus bar when the connecting member is moved in the protruding direction of the electrical connecting portion in the insertion completed state. Each of the locking projections hooks the third projection portion to each of the boundary wall bodies, and uses the third projection portion as a rotation fulcrum to connect the connection member to the two electrical connection portions. It is desirable to form such that each of the through holes can be inserted and removed when it is rotated.

  In addition, the insertion space has a surplus space portion formed by a gap between the two electrical connection portions when the two electrical connection portions are completely inserted. It is desirable that at least one has a space portion that communicates with the surplus space portion and is connected to the outside of the insertion space.

  In order to achieve the above object, an electrical junction box according to the present invention includes an electronic component, a bus bar, and a plurality of electrical wiring blocks that electrically connect the electronic component and the bus bar inward. An electrical connection structure that couples electrical connection portions of the bus bars between the two electrical wiring blocks to be joined together, and a housing that houses the plurality of electrical wiring blocks, and the electrical connection The structure includes an insertion space for inserting at least one of the electrical connection portions that overlap each other, and a part of a wall surface that forms the insertion space, and the electrical units that are overlapped with each other in the insertion space. At least one pressing that allows each bus bar to be joined together with the electrical connections superimposed on each other by allowing the connections to be pressed together; It is characterized in that it comprises, when.

  In order to achieve the above object, a wire harness according to the present invention includes an electronic component, a bus bar, an electric wire, and a plurality of electric wiring blocks that electrically connect the electronic component, the bus bar, and the electric wire inward. An electrical connection structure that couples the electrical connection portions of the bus bars between the two electrical wiring blocks to be joined to each other, and a plurality of the electrical wiring blocks and the wires are And the electrical connection structure has an insertion space for inserting at least one of the electrical connection portions that overlap each other, and a part of a wall that forms the insertion space. Each of the electrical connections overlapped with each other in the insertion space, thereby allowing the electrical connections of the respective bus bars to overlap each other. It is characterized in that it comprises at least one pressing portion for coupling left state, the.

  The electrical wiring block assembly according to the present invention can physically and electrically connect each bus bar only by inserting the electrical connection portion of at least one bus bar into the insertion space of the electrical connection structure, and The two electric wiring blocks to be joined together can be joined. In other words, this electric wiring block assembly is a connecting member (screw-fastening member) as a separate conventional part that requires time and labor for connecting the respective bus bars, and thus connecting two electric wiring blocks. , Terminals, connectors, electric wires, etc.). Therefore, the electrical wiring block joined body according to the present invention facilitates the electrical connection work between the two electrical wiring blocks to be joined. Therefore, this electric wiring block assembly can reduce the cost. Moreover, since this electric wiring block assembly can reduce the size of the joint structure portion connected by the electric connection structure, the size of the body can be reduced. Furthermore, since the electrical junction box and the wire harness according to the present invention include the electrical wiring block assembly, it is possible to obtain the same effects as the electrical wiring block assembly.

FIG. 1 is a perspective view illustrating an electrical wiring block assembly, an electrical junction box, and a wire harness according to an embodiment. FIG. 2 is an exploded perspective view in which the electric wiring block assembly is separated into a first electric wiring block and a second electric wiring block. FIG. 3 is an exploded perspective view of the electrical connection structure extracted from the electrical wiring block assembly. FIG. 4 is an exploded perspective view of the first electric wiring block. FIG. 5 is a perspective view of the first electrical wiring block as seen from a different angle. FIG. 6 is an exploded perspective view of the second electrical wiring block. FIG. 7 is a perspective view of the second electrical wiring block as seen from a different angle. FIG. 8 is an exploded perspective view illustrating the electrical connection structure before connection. FIG. 9 is an exploded perspective view of the electrical connection structure before connection as seen from another angle. FIG. 10 is a perspective view showing an electric wiring block assembly of Modification 1. FIG. FIG. 11 is an exploded perspective view in which the electric wiring block assembly of Modification 1 is separated into a first electric wiring block and a second electric wiring block. FIG. 12 is an exploded perspective view of the electrical connection structure extracted from the electrical wiring block joined body according to the first modification. FIG. 13 is an exploded perspective view of the first electrical wiring block of the first modification. FIG. 14 is a perspective view of the first electrical wiring block of the first modification viewed from another angle. FIG. 15 is an exploded perspective view of the second electrical wiring block of the first modification. FIG. 16 is a perspective view of the second electrical wiring block of the first modification viewed from another angle. FIG. 17 is an exploded perspective view of the electrical connection structure according to the first modification. FIG. 18 is an exploded perspective view of the electrical connection structure before connecting the connection member of the first modification. FIG. 19 is a perspective view showing an electrical connection structure according to the second modification. FIG. 20 is a perspective view of the electrical connection structure according to Modification 2 as viewed from the opposite side. FIG. 21 is an exploded perspective view of the electrical connection structure according to the second modification. FIG. 22 is an exploded perspective view showing the electrical connection portion before coupling in the second modification. FIG. 23 is a plan view showing a coupling state of the electrical connection portions at the nominal value in the second modification. FIG. 24 is a plan view showing a coupling state of the electrical connection portions by the connection member of Modification 2 when the electrical connection portions are displaced in the block arrangement direction with respect to the nominal value. FIG. 25 is a plan view showing a coupling state of the electrical connection portion by the connection member of Modification 2 when the electrical connection portion is displaced in a direction orthogonal to the coupling surface as compared with the nominal value. FIG. 26 is a perspective view showing an electrical connection structure of Modification 3. FIG. FIG. 27 is a perspective view of the electrical connection structure of Modification 3 as seen from the opposite side. FIG. 28 is an exploded perspective view of the electrical connection structure according to the third modification. FIG. 29 is a plan view showing a connection member of Modification 3. FIG. 30 is a cross-sectional view taken along line X1-X1 of FIG. FIG. 31 is a perspective view showing an electrical connection structure of Modification 4. FIG. FIG. 32 is a perspective view of the electrical connection structure according to Modification 4 as viewed from the opposite side. FIG. 33 is an exploded perspective view of the electrical connection structure according to the fourth modification. FIG. 34 is an exploded perspective view showing the electrical connection portion before coupling in Modification 4. FIG. 35 is a plan view showing a connection member of Modification 4. FIG. FIG. 36 is a cross-sectional view illustrating the process of assembling the connection member according to the fourth modification. FIG. 37 is a perspective view showing an electric wiring block assembly, an electric connection box, and a wire harness according to Modification 5. FIG. 38 is an exploded perspective view in which the electric wiring block assembly of Modification 5 is separated into a first electric wiring block and a second electric wiring block. FIG. 39 is an exploded perspective view of the electrical connection structure extracted from the electrical wiring block joined body of Modification 5. FIG. 40 is an exploded perspective view of the first electrical wiring block of the fifth modification. FIG. 41 is a perspective view of the first electrical wiring block of the modification 5 as seen from another angle. FIG. 42 is an exploded perspective view of the second electrical wiring block of the fifth modification. FIG. 43 is a perspective view of the second electrical wiring block of the modification 5 as seen from another angle. FIG. 44 is an exploded perspective view of the electrical connection structure according to the fifth modification. FIG. 45 is an exploded perspective view of the electrical connection structure of Modification 5 as seen from another angle. FIG. 46 is a perspective view showing a connection member of Modification 5. FIG. FIG. 47 is a perspective view illustrating an assembling process of the connection member according to the fifth modification. FIG. 48 is a cross-sectional view illustrating the process of assembling the connection member according to the fifth modification. FIG. 49 is a perspective view showing an electrical connection structure of Modification 6. FIG. FIG. 50 is a perspective view of the electrical connection structure according to Modification 6 as viewed from the opposite side. FIG. 51 is an exploded perspective view of the electrical connection structure according to the sixth modification. 52 is a cross-sectional view taken along line X2-X2 of FIG. FIG. 53 is a perspective view showing an electrical connection structure of Modification 7. FIG. FIG. 54 is a perspective view of the electrical connection structure according to Modification 7 as viewed from the opposite side. FIG. 55 is an exploded perspective view of an electrical connection structure according to Modification 7. FIG. 56 is a plan view of the drainage structure of the electrical connection structure according to Modification 7 as viewed from the drain outlet side. 57 is a cross-sectional view taken along line X3-X3 of FIG. FIG. 58 is an exploded perspective view illustrating the electrical connection structure before connection in the reference example. FIG. 59 is a perspective view of the electrical connection structure after connection in the reference example.

  Hereinafter, embodiments of an electrical wiring block assembly, an electrical junction box, and a wire harness according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.

[Embodiment]
One embodiment of an electrical wiring block assembly, an electrical junction box, and a wire harness according to the present invention will be described with reference to FIGS.

  Reference numeral 1 in FIGS. 1 to 3 represents an electric wiring block assembly of the present embodiment. Moreover, the code | symbol JB of FIG. 1 and the code | symbol WH are respectively the electrical connection box of this embodiment provided with the electrical wiring block assembly 1, and the wire harness of this embodiment provided with this electrical connection box JB. Show.

  The electrical wiring block assembly 1 is obtained by joining a plurality of electrical wiring blocks (a first electrical wiring block 10 and a second electrical wiring block 20 described later) that house the electronic component EP (FIGS. 1 to 3). ). In addition, the electrical junction box JB is a case in which a plurality of electrical wiring blocks are accommodated together with the electronic component EP in the housing JBa (FIG. 1). At least one electrical wiring block assembly 1 is accommodated in the housing JBa. Therefore, in this electrical junction box JB, an electrical wiring block assembly or an electrical wiring block different from the electrical wiring block assembly 1 may be accommodated in the housing JBa. The electrical wiring block assembly 1 is held by the housing JBa via a known lock mechanism (not shown) or the like. The wire harness WH is an electric wire (power supply line, signal line, etc.) We electrically connected to the electronic component EP of the electric junction box JB, which is drawn from the inside of the housing JBa to the outside. Yes (Figure 1). In addition, the housing | casing JBa in a figure is a conceptual diagram which showed only the outer wall of the flame | frame, and has covered two opening of this flame | frame with each cover.

  The electrical junction box JB is installed in the engine compartment or the like of a vehicle (not shown) as a wire harness WH together with the electric wire We. In the electrical junction box JB, a connection object (not shown) mounted on the vehicle is electrically connected to the electronic component EP via the electric wire We. For example, in this electrical junction box JB, at least two electric wires We are electrically connected to the electronic component EP, and at least two connection objects are electrically connected via the electronic component EP. The electronic component EP refers to, for example, circuit protection components such as relays and fuses, connectors, and terminal fittings. In the present embodiment, electronic devices such as a circuit board and an electronic control unit (so-called ECU) are also considered as one form of the electronic component EP housed in the housing JBa. Further, the connection object refers to a power source such as a secondary battery, a load such as an electric device (actuator or the like), a sensor, or the like.

  Hereinafter, the electrical wiring block assembly 1 will be described in detail.

  As described above, the electrical wiring block assembly 1 is obtained by joining a plurality of electrical wiring blocks. The electric wiring block accommodates a bus bar in addition to the electronic component EP, and electrically connects the electronic component EP and the bus bar inward. In the electrical wiring block assembly 1 of the present embodiment, the two electrical wiring blocks are joined by joining the respective bus bars between the two electrical wiring blocks to be joined to each other. The electrical wiring block assembly 1 includes an electrical connection structure that couples electrical connection portions of the respective bus bars.

  Here, an electrical wiring block assembly 1 including two electrical wiring blocks (a first electrical wiring block 10 and a second electrical wiring block 20) is illustrated (FIGS. 1 to 3). The first electric wiring block 10 (FIGS. 1 to 5) and the second electric wiring block 20 (FIGS. 1 to 3, 6, and 7) are each formed of an insulating material such as synthetic resin.

  The first electrical wiring block 10 accommodates the circuit protection component EP1 as the electronic component EP and the bus bar 30 (FIGS. 3 and 4). The first electrical wiring block 10 is formed with a first storage chamber 11 (FIG. 4) that stores and holds the circuit protection component EP1 and a second storage chamber 12 (FIG. 5) that stores and holds the bus bar 30. Has been. In the first electrical wiring block 10, six circuit protection components EP <b> 1 are accommodated, and each circuit protection component EP <b> 1 is electrically connected via one bus bar 30. Therefore, in this example, six first storage chambers 11 are arranged in a lattice pattern, and one circuit protection component EP1 is stored in each first storage chamber 11 via the opening 11a (FIG. 4). Is done. Moreover, the terminal connection part 31 of the bus bar 30 accommodated in the 2nd accommodating chamber 12 is each inserted in each 1st accommodating chamber 11 via the opening part 12a (FIG. 5). Therefore, the circuit protection component EP1 is physically and electrically connected to the bus bar 30 via the terminal connection portion 31 when accommodated in the first accommodation chamber 11.

  Here, the bus bar 30 is formed of a conductive material such as metal. The illustrated bus bar 30 is a plate-shaped member that is press-formed using a metal plate such as a copper plate as a base material (FIGS. 3, 4, 8, and 9). The bus bar 30 has six terminal connection portions 31 for each circuit protection component EP1. The illustrated terminal connection portion 31 is formed in a so-called male tab shape, and is inserted and fitted into one female terminal connection portion (not shown) of the circuit protection component EP1. The bus bar 30 has two combinations of three terminal connection portions 31 arranged at substantially equal intervals on the same plane, and the respective combinations are arranged to face each other. The bus bar 30 has a rectangular first connecting part 32 that connects three terminal connection parts 31 of one combination on the same plane and a rectangular first connection part 32 that connects three terminal connection parts 31 of the other combination on the same plane. A second connecting portion 33. In this bus bar 30, the respective terminal connecting portions 31 are projected and extended in the same direction from the first connecting portion 32 and the second connecting portion 33, and the extending direction is the terminal of the circuit protection component EP1. It becomes the insertion / extraction direction with the connection part. Further, the bus bar 30 includes a rectangular third connecting portion 34 that connects the first connecting portion 32 and the second connecting portion 33 on the side opposite to the terminal connecting portion 31. In the bus bar 30, a main portion is formed by the six terminal connection parts 31, the first connection part 32, the second connection part 33, and the third connection part 34.

  In the first electric wiring block 10, the end portion of the electric wire We is electrically connected to the other female terminal connection portion (not shown) of the circuit protection component EP1. The electric wire We is physically and electrically connected to the circuit protection component EP1 via, for example, a male tab-type terminal fitting attached to the end. The electric wire We is provided for each circuit protection component EP1.

  The second electrical wiring block 20 accommodates the relay EP2 as the electronic component EP and the bus bar 40 (FIGS. 3 and 6). The second electrical wiring block 20 is formed with a first storage chamber 21 (FIG. 6) that stores and holds the relay EP2, and a second storage chamber 22 (FIG. 7) that stores and holds the bus bar 40. Yes. In the second electrical wiring block 20, ten relays EP <b> 2 are accommodated, and each relay EP <b> 2 is electrically connected through one bus bar 40. Therefore, in this illustration, ten first accommodation chambers 21 are arranged in a lattice pattern, and one relay EP2 is accommodated in each first accommodation chamber 21 via the opening 21a (FIG. 6). . Moreover, the terminal connection part 41 of the bus bar 40 accommodated in the 2nd accommodating chamber 22 is inserted in each 1st accommodating chamber 21 via the opening part 22a (FIG. 7), respectively. Therefore, the relay EP2 is physically and electrically connected to the bus bar 40 via the terminal connection portion 41 when accommodated in the first accommodation chamber 21.

  Here, the bus bar 40 is formed of a conductive material such as metal. The illustrated bus bar 40 is a plate-like member that is press-molded using a metal plate such as a copper plate as a base material, similarly to the bus bar 30 of the first electric wiring block 10 (FIGS. 3, 6, and 8). And FIG. 9). This bus bar 40 has ten terminal connections 41 for each relay EP2. The illustrated terminal connection portion 41 is formed in a so-called tuning fork terminal type, and the terminal connection portion EP2a of the relay EP2 is sandwiched by inserting one male tab-type terminal connection portion EP2a of the relay EP2. The bus bar 40 has two combinations of five terminal connection portions 41 arranged at substantially equal intervals on the same plane, and the combinations are arranged to face each other. The bus bar 40 has a rectangular first connecting portion 42 that connects the five terminal connecting portions 41 of one combination on the same plane and a rectangular first connecting the five terminal connecting portions 41 of the other combination on the same plane. A second connecting portion 43. In this bus bar 40, each terminal connection part 41 is protruded and extended from the 1st connection part 42 and the 2nd connection part 43 in the same direction, The extension direction is a terminal connection part of relay EP2. It becomes the insertion / extraction direction with EP2a. Further, the bus bar 40 includes a rectangular third connecting portion 44 that connects the first connecting portion 42 and the second connecting portion 43 on the side opposite to the terminal connecting portion 41. In the bus bar 40, ten terminal connection parts 41, first connection parts 42, second connection parts 43, and third connection parts 44 form a main part.

  In the second electrical wiring block 20, the end portion of the electric wire We is electrically connected to the other male tab-type terminal connection portion EP2b of the relay EP2. The electric wire We is physically and electrically connected to the relay EP2 via, for example, a tuning fork terminal-type terminal fitting attached to the end. This electric wire We is provided for each relay EP2.

  The first electric wiring block 10 and the second electric wiring block 20 shown here form the electric wiring block assembly 1 bonded to each other by connecting the bus bars 30 and 40 as described above. To do. In this electrical wiring block assembly 1, the opening 11a of the first storage chamber 11 (the insertion port of the circuit protection component EP1) and the opening 21a of the first storage chamber 21 (the insertion port of the relay EP2) are in the same direction. So that the opening 12a of the second storage chamber 12 (the insertion port of the bus bar 30) and the opening 22a of the second storage chamber 22 (the insertion port of the bus bar 40) open in the same direction. The first electric wiring block 10 and the second electric wiring block 20 are joined. The electrical wiring block assembly 1 includes an electrical connection structure 50 that couples the electrical connection portions 35 and 45 of the respective bus bars 30 and 40 (FIGS. 3, 4, 8, and 9).

  In the bus bar 30, the electrical connection portion 35 is provided in a state of protruding from the main portion (six terminal connection portions 31, first connection portions 32, second connection portions 33, and third connection portions 34). In the bus bar 30, the electrical connection portion 35 is protruded from the end portion (one side) of the first coupling portion 32. Here, in the first connection portion 32, the electrical connection portion 35 is provided at one end portion in the arrangement direction of the three terminal connection portions 31. The illustrated electrical connecting portion 35 is formed in a rectangular plate shape on the same plane as the first connecting portion 32 (FIGS. 4 and 8). Further, in the bus bar 40, the electrical connection portion 45 is provided in a state of protruding from the main portion (10 terminal connection portions 41, the first connection portion 42, the second connection portion 43, and the third connection portion 44). In the bus bar 40, the electrical connection portion 45 is protruded from the end portion (one side) of the first coupling portion 42. Here, in the 1st connection part 42, the electrical connection part 45 is provided in one edge part in the sequence direction of the five terminal connection parts 41. As shown in FIG. The illustrated electrical connecting portion 45 is formed in a rectangular plate shape on the same plane as the first connecting portion 42 (FIGS. 6 and 8).

  The electrical connection structure 50 couples the bus bars 30 and 40 in a state in which the opposed planes of the electrical connection portions 35 and 45 are overlapped with each other. The electrical connection structure 50 includes an insertion space 51 into which at least one of the electrical connection portions 35 and 45 that overlap each other is inserted, and the electrical connection portions 35 and 45 that overlap each other in the insertion space 51. And at least one pressing portion 52 that enables pressing between each other (FIGS. 3, 4, 8, and 9). The pressing portion 52 has a part of the wall surface forming the insertion space 51. In addition, the pressing portion 52 enables the electrical connection portions 35 and 45 overlapped with each other in the insertion space 51 to be pressed between each other, so that the bus bars 30 and 40 are connected to each other. , 45 are combined in a state where they are overlapped.

  Specifically, the electrical connection structure 50 of the present embodiment is configured using the bus bar 30. The electrical connection structure 50 includes an electrical connection portion 35 that is superimposed on the electrical connection portion 45 of the bus bar 40 to be inserted into the insertion space 51, and an electrical connection portion 35 that is disposed to face the electrical connection portion 35 with a space therebetween. Between one pressing portion 52, a connecting portion 53 (FIGS. 3, 4, 8, and 9) for connecting the electrical connecting portion 35 and the pressing portion 52, and between the electrical connecting portion 35, the pressing portion 52, and the connecting portion 53. And an insertion space 51 formed.

  The pressing part 52 is formed in a rectangular plate shape. The pressing portion 52 is disposed to face each other with one plane facing the one plane of the electrical connection portion 35. The connecting portion 53 is a portion that connects the end portions (one side) of the electric connecting portion 35 and the pressing portion 52 on the terminal connecting portion 31 side. Therefore, in the electrical connection part 35 and the press part 52, the edge part (one side) on the opposite side to each terminal connection part 31 side becomes a free end. The illustrated connecting portion 53 is formed as a bending point having a cross-sectional arc shape by bending the pressing portion 52 with respect to the electrical connecting portion 35.

  In the electrical connection structure 50, a space surrounded by the electrical connection portion 35, the pressing portion 52, and the coupling portion 53 becomes an insertion space 51, and the electrical connection portion 45 of the bus bar 40 is inserted into the insertion space 51. . In the electrical connection structure 50, a space between the free ends of the electrical connection portion 35 and the pressing portion 52 serves as an insertion port for the electrical connection portion 45. The electrical connection part 45 improves the workability of insertion into the insertion space 51 by forming the end part (one side) that reaches the insertion opening first in a tapered shape.

  Here, in this electrical connection structure 50, the electrical connection portion 35 and the pressing portion 52 can be bent with the connecting portion 53 as a fulcrum, and the planes of the electrical connection portion 35 and the pressing portion 52 that are arranged to face each other can be bent. The interval can be changed. In the electrical connection structure 50, a spring force can be generated between the electrical connection portion 35 and the pressing portion 52 by generating the bending in the elastic region. For example, the distance between the planes where the electrical connection portion 35 and the pressing portion 52 are arranged to face each other is such that the bending of the electrical connection portion 35 and the pressing portion 52 that occurs with the insertion of the electrical connection portion 45 into the insertion space 51 is within the elastic range. It is made narrower than the plate thickness of the electrical connection part 45 so that it may stay. As a result, the electrical connection portion 35 and the pressing portion 52 are subjected to a force from the electrical connection portion 45 so as to widen the space between the respective planes by inserting the electrical connection portion 45 into the insertion space 51. A pressing force as a reaction force of the force can be applied to each plane of the electrical connection portion 45. That is, the electrical connection structure 50 can sandwich the electrical connection portion 45 inserted into the insertion space 51 between the electrical connection portion 35 and the pressing portion 52, and thus the electrical connection portions 35 and 45 are overlapped. The respective bus bars 30 and 40 can be coupled with each other as they are.

  In the electrical wiring block assembly 1, a third storage chamber in which the electrical connection structure 50 is accommodated is provided in at least one of the first electrical wiring block 10 and the second electrical wiring block 20. Here, when the third storage chamber 13 is provided in the first electrical wiring block 10 (FIGS. 1 to 5), and the bus bar 30 is stored in the second storage chamber 12, the electrical connection structure 50 (the electrical connection portion 35). , The pressing portion 52, the connecting portion 53, and the insertion space 51) are accommodated in the third accommodating chamber 13. The 3rd storage chamber 13 has the opening part 13a which opened the opening | mouth in the same direction as the opening part 12a of the 2nd storage room 12 (FIG. 5). The electrical connection structure 50 is inserted from the opening 13a. On the other hand, in the second electrical wiring block 20, when the bus bar 40 is accommodated in the second accommodation chamber 22, the electrical connection portion 45 protrudes outward.

  For example, each of the first electric wiring block 10 and the second electric wiring block 20 previously accommodates the bus bars 30 and 40, and the protruding electrical connection portion 45 is inserted from the opening 13 a of the third accommodation chamber 13. However, it is inserted into the insertion space 51 of the electrical connection structure 50. The first electrical wiring block 10 and the second electrical wiring block 20 are joined to each other by joining the bus bars 30 and 40 in this way. Here, the third storage chamber 13 is provided with a notch 13b so as not to obstruct the insertion of the electrical connection portion 45 (FIG. 5).

  As described above, the electrical wiring block assembly 1 of the present embodiment can be obtained by simply inserting the electrical connection portion 45 of the bus bar 40 into the insertion space 51 of the electrical connection structure 50 of the bus bar 30. Can be physically and electrically connected, and the first electric wiring block 10 and the second electric wiring block 20 can be joined. In other words, the electrical wiring block assembly 1 is a conventional one that requires a lot of connection work for joining the bus bars 30 and 40, and thus joining the first electrical wiring block 10 and the second electrical wiring block 20. Such a simple structure that does not require a connecting member (screw fixing member, terminal, connector, electric wire, etc.) as a separate part is employed. Therefore, the electrical wiring block assembly 1 of the present embodiment facilitates the electrical connection work between the first electrical wiring block 10 and the second electrical wiring block 20 to be joined. Therefore, the electrical wiring block assembly 1 can reduce the cost. In addition, the electrical wiring block assembly 1 can be downsized because the joint structure portion joined by the electrical connection structure 50 can be downsized. Furthermore, since the electrical junction box JB and the wire harness WH of this embodiment are provided with the electrical wiring block assembly 1, the effects exhibited by the electrical wiring block assembly 1 can be similarly obtained.

  By the way, in the electrical connection structure 50 of the present embodiment, the electrical connection part 35 as a constituent element is arranged on the same plane as the first coupling part 32, so that the pressing part 52 arranged to face the electrical connection part 35. The plane is also along the plane of the first connecting portion 32. However, in this electrical connection structure 50, the electrical connection portion 35 is disposed so as to intersect (for example, orthogonal to) the first coupling portion 32, and the pressing portion 52 is disposed opposite to the electrical connection portion 35. It may be a thing. In this case, the electrical connection portion 45 of the bus bar 40 is formed in accordance with the position of the insertion space 51 between the plane where the electrical connection portion 35 and the pressing portion 52 are arranged to face each other. The arrangement of the electrical connection portions 45 in the bus bar 40 is determined depending on the relative arrangement of the first electric wiring block 10 and the second electric wiring block 20. For example, when the relative arrangement of the first electrical wiring block 10 and the second electrical wiring block 20 is the same as the previous example, the electrical connection portion 45 intersects (for example, is orthogonal to) the first connection portion 42. Deploy. Even in this case, each of the electrical connection portions 35 and 45 is overlapped with the opposing planes. Even if the electrical wiring block assembly 1, the electrical junction box JB, and the wire harness WH of the present embodiment configure the electrical connection structure 50 in this way, the same effects as those of the previous illustration can be obtained.

[Modification 1]
Reference numeral 2 in FIG. 10 to FIG. 12 shows an electric wiring block assembly of the present modification. Although not shown here, the electrical wiring block assembly 2 is configured in the electrical connection box JB by being housed in the housing JBa, and the electric wire We is connected to the electrical connection box JB, as in the embodiment described above. Thus, the wire harness WH is configured. In addition, the same components as in the embodiment may be omitted from description even if they are shown together with reference numerals in the drawings of the present modification.

  The electrical wiring block assembly 2 is formed by joining a plurality of electrical wiring blocks in the same manner as in the above-described embodiment. In this electrical wiring block assembly 2, in this modification as well, the bus bars are coupled between two electrical wiring blocks to be joined together, as in the above-described embodiment. Two electrical wiring blocks are joined. And this electric wiring block assembly 2 is equipped with the electrical connection structure which couple | bonds the electrical connection part of each bus bar.

  Here, an electrical wiring block assembly 2 including two electrical wiring blocks (a first electrical wiring block 110 and a second electrical wiring block 120) is illustrated (FIGS. 10 to 12). The first electric wiring block 110 (FIGS. 10 to 14) and the second electric wiring block 120 (FIGS. 10 to 12, FIGS. 15 and 16) are each formed of an insulating material such as a synthetic resin.

  The first electrical wiring block 110 is the same as the first electrical wiring block 10 of the embodiment, and houses the circuit protection component EP1 and the bus bar 130 (FIGS. 12 and 13). The first electrical wiring block 110 is formed with a first storage chamber 111 (FIG. 13) that stores and holds the circuit protection component EP1 and a second storage chamber 112 (FIG. 14) that stores and holds the bus bar 130. Has been. The circuit protection component EP1 is accommodated in the first accommodation chamber 111 through the opening 111a (FIG. 13). The bus bar 130 is accommodated in the second accommodating chamber 112 through the opening 112a (FIG. 14). In the first electrical wiring block 110, the first storage chamber 111 and the second storage chamber 112 are formed in the same quantity and arrangement as the first electrical wiring block 10.

  The bus bar 130 is formed in the same shape as the bus bar 30 of the embodiment, and includes six terminal connection parts 131, a first connection part 132, a second connection part 133, a third connection part 134, and an electrical connection part 135. (FIGS. 12 and 13). However, unlike the bus bar 30 of the embodiment, the bus bar 130 of the present modification does not include the pressing portion 52 and the connecting portion 53.

  The second electrical wiring block 120 is the same as the second electrical wiring block 20 of the embodiment, and houses the relay EP2 and the bus bar 140 (FIGS. 12 and 15). The second electrical wiring block 120 is formed with a first storage chamber 121 (FIG. 15) for storing and holding the relay EP2, and a second storage chamber 122 (FIG. 16) for storing and holding the bus bar 140. Yes. The relay EP2 is accommodated in the first accommodating chamber 121 through the opening 121a (FIG. 15). The bus bar 140 is accommodated in the second accommodating chamber 122 through the opening 122a (FIG. 16). In the second electrical wiring block 120, the first storage chamber 121 and the second storage chamber 122 are formed with the same quantity and arrangement as the second electrical wiring block 20.

  The bus bar 140 is formed in the same shape as the bus bar 40 of the embodiment, and includes ten terminal connection parts 141, a first connection part 142, a second connection part 143, a third connection part 144, and an electrical connection part. 145 (FIGS. 12 and 15).

  In this electrical wiring block assembly 2, the opening 111a of the first storage chamber 111 (the insertion port of the circuit protection component EP1) and the opening 121a of the first storage chamber 121 (the insertion port of the relay EP2) are in the same direction. So that the opening 112a of the second storage chamber 112 (the insertion port of the bus bar 130) and the opening 122a of the second storage chamber 122 (the insertion port of the bus bar 140) open in the same direction. The first electric wiring block 110 and the second electric wiring block 120 are joined. The electrical wiring block assembly 2 includes an electrical connection structure 150 that couples the electrical connection portions 135 and 145 of the respective bus bars 130 and 140 (FIGS. 12, 13, 17, and 18).

  In the same manner as the electrical connection structure 50 of the embodiment, the electrical connection structure 150 has the respective bus bars 130 and 140 in a state where the opposingly arranged planes of the electrical connection portions 135 and 145 overlap each other. Are combined. In the same manner as the electrical connection structure 50 of the embodiment, the electrical connection structure 150 includes an insertion space 151 into which at least one of the electrical connection portions 135 and 145 that overlap each other is inserted, and the insertion space 151. And at least one pressing portion 152 that enables the electrical connection portions 135 and 145 stacked on each other to be pressed between each other (FIGS. 13, 17, and 18). The pressing portion 152 has a part of the wall surface forming the insertion space 151. In addition, the pressing portion 152 enables the electric connecting portions 135 and 145 overlapped with each other in the insertion space 151 to be pressed between each other, so that the bus bars 130 and 140 are connected to each other. , 145 are joined together in a superposed state.

  Specifically, the electrical connection structure 150 of the present modification includes a connection member 150P that is a member different from the bus bars 130 and 140 (FIGS. 12, 13, 17, and 18). This exemplary connection member 150P is formed of a conductive material such as metal.

  The connecting member 150P includes two pressing portions 152A and 152B that are arranged to face each other with a space therebetween as the pressing portion 152 (FIGS. 13, 17, and 18). Further, the connecting member 150P has a connecting portion 153 that connects the two pressing portions 152A and 152B (FIGS. 13, 17, and 18). The connecting member 150P has an insertion space 151 formed between the two pressing portions 152A and 152B and the connecting portion 153.

  Each of the pressing portions 152A and 152B is formed in an equivalent rectangular plate shape, and is disposed to face each other with their respective planes facing each other. The connecting portion 153 is a portion that connects the end portions (one side) of the pressing portions 152A and 152B that are arranged to face each other. The illustrated connecting member 150P is shaped like a rectangular metal plate bent at the center, and a connecting portion 153 is disposed at the bending point. Each pressing portion 152A, 152B extends from both ends of the connecting portion 153 in the same direction. In each pressing part 152A, 152B, the edge part (one side) in the extension direction becomes a free end.

  In the electrical connection structure 150, a space surrounded by the two pressing portions 152A, 152B and the connecting portion 153 becomes an insertion space 151, and the electrical connection portions 135, 145 is inserted. The insertion space 151 is inserted in a state where the planes in which the respective electrical connection portions 135 and 145 are arranged to face each other are overlapped with each other. In this electrical connection structure 150, the space between the free ends of the respective pressing portions 152A and 152B is an insertion port for the electrical connection portions 135 and 145.

  Here, in this connection member 150P, the pressing portions 152A and 152B can be bent with the connecting portion 153 as a fulcrum, and the interval between the planes of the pressing portions 152A and 152B facing each other is changed. Can do. And in this connection member 150P, the spring force can be generated between each press part 152A, 152B by generating the bending within an elastic region. For example, the space between the opposing surfaces of the pressing portions 152A and 152B is such that the bending of the pressing portions 152A and 152B generated with the insertion of the electrical connection portions 135 and 145 into the insertion space 151 remains within the elastic range. In addition, the thickness is made narrower than the total thickness of the superposed electrical connection portions 135 and 145. As a result, each of the pressing portions 152A and 152B receives a force from the electrical connection portions 135 and 145 so as to push the gap between the planes by inserting the electrical connection portions 135 and 145 into the insertion space 151. In addition, a pressing force as a reaction force of the force can be applied to the respective planes of the electrical connection portions 135 and 145. In other words, the electrical connection structure 150 can sandwich the electrical connection portions 135 and 145 inserted into the insertion space 151 with the two pressing portions 152A and 152B, so that the electrical connection portions 135 and 145 The respective bus bars 130 and 140 can be coupled while being superposed.

Here, bulging portions 152A ₁ and 152B ₁ bulged toward the other facing flat surfaces are provided on the respective planes facing the two pressing portions 152A and 152B (FIGS. 13 and 17). And FIG. 18). In this example, to form a two bulging portion 152A ₁ on one of the pressing portion 152A, forming two bulging portion 152B ₁ to 152B the other pressing portion. A pair of bulging portions 152A ₁ and the bulging portion 152B ₁ is disposed opposite to each other, a pressing point for each of the electrical connections 135 and 145 inserted into the insertion space 151. Therefore, here, the thickness of the stacked electrical connection portions 135 and 145 is such that the bending of the pressing portions 152A and 152B generated with the insertion of the electrical connection portions 135 and 145 into the insertion space 151 remains in the elastic region. The interval between the pair of bulging portions 152A ₁ and 152B ₁ is made narrower than the total value.

  In the electrical wiring block assembly 2, a third storage chamber in which the connecting member 150 </ b> P is stored is provided in at least one of the first electrical wiring block 110 and the second electrical wiring block 120. Here, the 3rd storage chamber 113 is provided in the 1st electrical wiring block 110 (FIGS. 10-14). In the third storage chamber 113, when the bus bar 130 is stored in the second storage chamber 112, the electrical connection portion 135 is inserted. The third storage chamber 113 has an opening 113a having a mouth opened in the same direction as the opening 112a of the second storage chamber 112 (FIG. 14). The electrical connection part 135 is inserted from the opening 113a. Further, the third storage chamber 113 has an opening 113b having an opening in the same direction as the opening 111a of the first storage chamber 111 (FIGS. 10 to 13). The connecting member 150P is inserted from the opening 113b. On the other hand, in the second electrical wiring block 120, when the bus bar 140 is accommodated in the second accommodation chamber 122, the electrical connection portion 145 protrudes outward.

  For example, each of the first electric wiring block 110 and the second electric wiring block 120 previously accommodates the bus bars 130 and 140, and the protruding electrical connection portion 145 is inserted from the opening 113 a of the third accommodation chamber 113. To go. The electrical connection portion 145 is superimposed on the electrical connection portion 135 when the accommodation in the third accommodation chamber 113 is completed. Here, the third storage chamber 113 is provided with a notch 113c so as not to obstruct the insertion of the electrical connection portion 145 (FIG. 14). The connection member 150P is inserted from the opening 113b in a state where the electrical connection portions 135 and 145 are overlapped. The connecting member 150P is accommodated in the third accommodating chamber 113 while the superimposed electrical connecting portions 135 and 145 are inserted into the insertion space 151. When the accommodation is completed, the two pressing portions 152A and 152B The respective electrical connection portions 135 and 145 are sandwiched. The first electric wiring block 110 and the second electric wiring block 120 are joined to each other by connecting the bus bars 130 and 140 in this way.

  As described above, the electrical wiring block assembly 2 of the present modified example can physically and electrically connect the bus bars 130 and 140 by simply sandwiching the electrical connection portions 135 and 145 overlapped with each other with the connection member 150P. The first electric wiring block 110 and the second electric wiring block 120 can be joined. In other words, the electrical wiring block assembly 2 is a conventional one that requires a lot of connection work for joining the respective bus bars 130 and 140 and thus joining the first electrical wiring block 110 and the second electrical wiring block 120. A simple structure that does not require such connection members (screw fixing members, terminals, connectors, electric wires, etc.) is employed. Therefore, the electrical wiring block assembly 2 of the present modification makes it easy to electrically connect the first electrical wiring block 110 and the second electrical wiring block 120 to be joined. Therefore, the electrical wiring block assembly 2 can reduce the cost. Moreover, since this electrical wiring block joined body 2 can reduce the size of the coupling structure portion coupled by the connecting member 150P, the size of the body can be reduced. Furthermore, since the electrical junction box JB and the wire harness WH of this modification are provided with the electrical wiring block assembly 2, the effects exhibited by the electrical wiring block assembly 2 can be similarly obtained.

  By the way, in the bus bar 130 of this modification, the electrical connection portion 135 is arranged on the same plane as the first coupling portion 132. Similarly, in the bus bar 140 of this modification, the electrical connection portion 145 is arranged on the same plane as the first coupling portion 142. However, the bus bar 130 may be arranged such that the electrical connection portion 135 intersects (for example, is orthogonal to) the first coupling portion 132. In this case, the electrical connection portion 145 of the bus bar 140 is formed in accordance with the position of the electrical connection portion 135. The arrangement of the electrical connection portions 145 in the bus bar 140 is determined depending on the relative arrangement of the first electric wiring block 110 and the second electric wiring block 120. For example, when the relative arrangement of the first electrical wiring block 110 and the second electrical wiring block 120 is the same as the previous example, the electrical connection portion 145 intersects the first connection portion 142 (for example, orthogonal). Deploy. Even in this case, each of the electrical connection portions 135 and 145 is overlapped with the opposing planes. The connection member 150P couples the bus bars 130 and 140 so as to sandwich the superimposed electrical connection portions 135 and 145. The electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH of the present modification can obtain the same effects as the previous examples even if the electrical connection portions 135 and 145 are arranged in this way. .

[Modification 2]
In this modification, the bus bar 130, 140 and the electrical connection structure 150 (connection member 150P) are connected to the following bus bar 230, 240 and the electrical connection structure 250 ( It is replaced with a connection member 250P), and only the portion related to the electrical connection structure 250 is changed (FIGS. 19 to 21). Therefore, in the following, only the parts related to the electrical connection structure 250 are extracted and described. In addition, the electrical wiring block joined body 2 of this modification comprises the electrical connection box JB by accommodating in the housing | casing JBa like the modification 1 mentioned above, and connects the electric wire We to this electrical connection box JB. Thus, the wire harness WH is configured.

  The bus bar 230 includes six terminal connection portions 131 formed in the same shape as the bus bar 130 of the first modification and first to third connection portions 132 to 134 (not shown). The electronic component EP is electrically connected to the part side 231A (FIGS. 19 to 22). Further, the bus bar 230 includes an electrical connection portion 235 and a main connection portion 236 for connecting the electrical connection portion 235 and the terminal connection portion side 231A (FIGS. 19 to 22).

The electrical connection portion 235 and the terminal connection portion side 231A are arranged along the arrangement direction of the first electric wiring block 110 and the second electric wiring block 120 after joining (hereinafter referred to as “block arrangement direction”). (FIGS. 19 to 22). The electrical connection portion 235 is formed in a rectangular plate shape. As for this electrical connection part 235, two of four side parts are extended in the orthogonal direction with respect to a block arrangement direction, and it is open to the 3rd storage chamber 113 of the 1st electrical wiring block 110 along the extension direction. It is inserted from the part 113a. On the other hand, the end portion 231A ₁ of the electrical connection portion 235 side of the terminal connection portion 231A is formed in a rectangular plate on the electrical connection portion 235 and the same plane. The end 231A ₁ has two of the four sides but extends in a direction perpendicular to the block arrangement direction. In the bus bar 230 is disposed opposite the one side portion and one side portion of the end portion 231A ₁ of the terminal connecting portion 231A of the electrical connections 235 are spaced apart, connecting the respective side portions Thus, the main connecting portion 236 is interposed.

  The bus bar 240 has ten terminal connection parts 141 formed in the same shape as the bus bar 140 of the first modification and first to third connection parts 142-144 (not shown). The electronic component EP is electrically connected to the connecting portion side 241A (FIGS. 19 to 22). Further, the bus bar 240 has an electrical connection portion 245 and a main connection portion 246 for connecting the electrical connection portion 245 and the terminal connection portion side 241A (FIGS. 19 to 22).

The electrical connection portion 245 and the terminal connection portion side 241A are arranged along the block arrangement direction (FIGS. 19 to 22). The electrical connection portion 245 is formed in a rectangular plate shape. As for this electrical connection part 245, two of four side parts are extended in the orthogonal direction with respect to a block arrangement direction, and it is open to the 3rd storage chamber 113 of the 1st electrical wiring block 110 along the extension direction. It is inserted from the part 113a. On the other hand, the end portion 241A ₁ of the electrical connection portion 245 side of the terminal connection portion 241A is formed in a rectangular plate on the electrical connection part 245 and the same plane. The end 241A ₁ has two of the four sides but extends in a direction perpendicular to the block arrangement direction. In the bus bar 240 is disposed opposite the one side portion and one side portion of the end portion 241A ₁ of the terminal connecting portion 241A of the electrical connections 245 are spaced apart, connecting the respective side portions Thus, the main connecting portion 246 is interposed.

  The bus bars 230 and 240 overlap and couple the opposed planes of the electrical connection portions 235 and 245 to each other (FIGS. 19 to 21). The electrical connection structure 250 is responsible for the coupling. Similar to the electrical connection structure 150 of the first modification, the electrical connection structure 250 is overlapped with the insertion space 251 in which the respective electrical connection portions 235 and 245 are inserted with each other and the insertion space 251. And two pressing portions 252 that enable the respective electric connection portions 235 and 245 to be pressed between each other (FIG. 21).

  Specifically, the electrical connection structure 250 of this modification includes a connection member 250P that is a member different from the bus bars 230 and 240 (FIGS. 19 to 21). The illustrated connecting member 250P is formed of a conductive material such as metal.

  The connecting member 250P has two pressing portions 252A and 252B that are arranged to face each other with a space therebetween as the pressing portion 252 (FIGS. 19 to 21). Further, the connecting member 250P has a connecting portion 253 that connects the two pressing portions 252A and 252B (FIGS. 19 to 21). The connecting member 250P has an insertion space 251 formed between the two pressing portions 252A and 252B and the connecting portion 253.

  Each of the pressing portions 252A and 252B is formed in an equivalent rectangular plate shape, and is disposed to face each other with their respective planes facing each other. The connecting portion 253 is a portion that connects the end portions (one side) of the pressing portions 252A and 252B facing each other. The illustrated connecting member 250P has a main body shaped like a rectangular metal plate bent at the center, and a connecting portion 253 is disposed at the bending point.

However, the respective pressing portions 252A and 252B are freer than the interval between the end portions (that is, the fixed ends) on the connecting portion 253 side in a state before the respective electrical connection portions 235 and 245 are inserted into the insertion space 251. end 252A _1, interval 252B ₁ is so formed narrower (Fig. 21). The interval between the fixed ends is set to be wider than the total thickness of the electrical connection portions 235 and 245. On the other hand, the interval between the free ends 252A ₁ and 252B ₁ is set to be narrower than the total value of the plate thicknesses of the respective electrical connecting portions 235 and 245.

This connecting member 250P has flexibility, and can bend each pressing part 252A, 252B by using the connecting part 253 side as a fulcrum. Therefore, in this connection member 250P, the respective electrical connection portions 235 and 245 are inserted into the insertion space 251 while the intervals between the free ends 252A ₁ and 252B ₁ of the respective pressing portions 252A and 252B are expanded. Therefore, in this connection member 250P, the free ends 252A ₁ and 252B ₁ side of the respective pressing portions 252A and 252B serve as contact portions with the respective electrical connection portions 235 and 245, and the respective electrical connection portions are formed by the respective contact portions. 235 and 245 are sandwiched in an overlapped state.

In this connection member 250P, the free ends 252A of the respective pressing portions 252A and 252B are not damaged by the free ends 252A ₁ and 252B ₁ of the respective pressing portions 252A and 252B upon insertion. ₁ and 252B ₁ are bent toward the outer side opposite to the insertion space 251 (FIG. 21).

  If the connection members 250P accommodate the respective bus bars 230 and 240 in the first electric wiring block 110 and the second electric wiring block 120 in a state in which the electric connection portions 235 and 245 are coupled, The connection parts 235 and 245 are inserted into the third storage chamber 113 of the first electric wiring block 110 from the opening 113a. On the other hand, the connecting member 250P joins the first electric wiring block 110 and the second electric wiring block 120 in which the bus bars 230 and 240 are accommodated, and then the electric connecting portions 235 and 245, respectively. Is inserted into the insertion space 251, the respective electrical connection portions 235 and 245 are sandwiched while being inserted into the third storage chamber 113 of the first electrical wiring block 110 from the opening 113 b.

  By the way, this connection member 250P is within a range that does not obstruct insertion / extraction of the respective electrical connection portions 235, 245 with respect to the insertion space 251 so that the electric connection portions 235, 245 can be held. It is desirable to set the clamping force for the electrical connecting portions 235 and 245. Here, each of the first electric wiring block 110 and the second electric wiring block 120 includes a locking mechanism between the housing JBa. Therefore, in the electrical junction box JB, the first electrical wiring block 110 and the second electrical wiring block after joining are operated so that each locking mechanism operates even if there is a component variation or assembly variation within a tolerance range. It is desirable to allow relative movement with respect to the wiring block 120. However, when the connecting member 250P is set to the previous clamping force, it becomes difficult to relatively move between the first electric wiring block 110 and the second electric wiring block 120 after bonding, and the electric wiring block assembly 2 There is a possibility that the assembling workability to the housing JBa may be lowered.

  Further, in the electrical wiring block assembly 2, the component variation and assembly within the tolerance range are also between the first electrical wiring block 110 and the bus bar 230 and between the second electrical wiring block 120 and the bus bar 240. Variations in attachment occur. Therefore, in the electrical wiring block assembly 2, when the first electrical wiring block 110 and the second electrical wiring block 120 in which the bus bars 230 and 240 are accommodated are joined, the electrical connection portions 235 and 245 are joined. These planes do not overlap each other, and there is a possibility that the workability when the respective electrical connection portions 235 and 245 are sandwiched between the connection members 250P is lowered.

  The electric wiring block assembly 2 of the present modification is configured so as not to cause these problems. Specifically, in the electrical wiring block assembly 2, at least one main coupling portion 236 (246) of the two bus bars 230 and 240 is connected to the electrical connection portion 235 (245) and the terminal connection portion side 231A (241A). ) Is provided (FIGS. 19 to 22). In this example, the relative position variable portions 237 and 247 are provided in the main coupling portions 236 and 246 of the respective bus bars 230 and 240. In this example, the main connecting portions 236 and 246 themselves are formed as the relative position variable portions 237 and 247.

The relative position variable portion 237 of the bus bar 230 is a spring structure having a first flexible piece portion 237a, a second flexible piece portion 237b, and a flexible connecting portion 237c, each of which is flexible (see FIG. 22). The first flexible piece 237a is projected from the side of the terminal connecting portion side 231A in the electric connecting portion 235 in the intersecting direction with respect to the coupling surfaces of the respective electric connecting portions 235 and 245. The second deformable skirt portion 237b is protruded from the side portion of the electrical connection portion 235 side of the end portion 231A ₁ of the terminal connecting portion 231A in the cross direction with respect to the coupling surface of the respective electrical connection portions 235, 245. The flexible connecting portion 237c is a portion that connects the first flexible piece portion 237a and the second flexible piece portion 237b.

The side of the terminal connecting portion side 231A in the electric connecting portion 235 is the block arrangement direction and the direction in which the electric connecting portions 235 and 245 are clamped by the connecting member 250P (the direction orthogonal to the coupling surface of the electric connecting portions 235 and 245). It extends in the direction perpendicular to. The illustrated first flexible piece portion 237a extends along the extending direction of the side portion, and protrudes in a direction orthogonal to the coupling surfaces of the respective electrical connection portions 235 and 245. Further, side portions of the electrical connection portion 235 side of the end portion 231A ₁ of the terminal connecting portion 231A extends in the same direction as the sides of the terminal connecting portion side 231A of the electrical connections 235. The illustrated second flexible piece portion 237b extends along the extending direction of the side portion, and protrudes in a direction orthogonal to the coupling surfaces of the respective electrical connection portions 235 and 245. The illustrated first flexible piece portion 237a and second flexible piece portion 237b protrude in the same direction. The flexible connecting portion 237c extends in the same direction as the first flexible piece portion 237a and the second flexible piece portion 237b, and is connected to the end portion on the protruding direction side of the first flexible piece portion 237a and the second possible piece. The end of the flexible piece 237b on the protruding direction side is connected. The illustrated flexible connecting portion 237c is formed such that an orthogonal cross section with respect to the extending direction is arcuate.

  The relative position variable portion 237 can be expanded and contracted in the block arrangement direction between the electrical connecting portion 235 and the terminal connecting portion side 231A. Further, the relative position variable portion 237 can bend between the electrical connecting portion 235 and the terminal connecting portion side 231A with itself as a fulcrum.

  The relative position variable portion 247 of the bus bar 240 is formed in the same manner as the relative position variable portion 237 of the bus bar 230. Therefore, the relative position variable portion 247 includes the first flexible piece portion 247a and the second flexible piece portion 237a similar to the first flexible piece portion 237a, the second flexible piece portion 237b, and the flexible connection portion 237c of the relative position variable portion 237. A flexible piece portion 247b and a flexible connecting portion 247c are provided (FIG. 22). Accordingly, the relative position variable portion 247 can be expanded and contracted in the block arrangement direction between the electrical connection portion 245 and the terminal connection portion side 241A. Further, the relative position varying portion 247 can bend between the electrical connecting portion 245 and the terminal connecting portion side 241A with itself as a fulcrum.

  FIG. 23 shows a coupling state of the respective electrical connection portions 235 and 245 at a design reference value (so-called nominal value) with no component variation or assembly variation. In this figure, the state before being pinched by the connecting member 250P is shown in the upper figure, and the state after being pinched by the connecting member 250P is shown in the lower figure.

  For example, each of the electrical connection portions 235 and 245 has a nominal value (two-dot chain line) due to component variations between the first electrical wiring block 110 and the bus bar 230 or between the second electrical wiring block 120 and the bus bar 240. ) May be displaced in the block arrangement direction (upper diagram in FIG. 24). Even in such a case, in the electrical wiring block assembly 2, the relative position variable portions 237 and 247 are provided between the electrical connection portion 235 and the terminal connection portion side 231A, and between the electrical connection portion 245 and the terminal connection portion side 241A. Can be expanded and contracted in the block arrangement direction, so that the planes (coupling surfaces) of the respective electrical connection portions 235 and 245 can be overlapped with each other in a state close to the nominal value (the lower diagram in FIG. 24). Therefore, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH can sandwich the electrical connection portions 235 and 245 between the connection members 250P without overloading the bus bars 230 and 240, respectively. In addition, it is possible to suppress a decrease in workability when the sandwiching is performed. In the illustration in the figure, for convenience, only one relative position variable unit 247 is expanded and contracted.

  Further, for example, the respective electrical connection portions 235 and 245 have a nominal value (2) due to component variations between the first electrical wiring block 110 and the bus bar 230 and between the second electrical wiring block 120 and the bus bar 240. There is a possibility that the position is displaced in the direction orthogonal to the coupling surface as compared with the dotted line) (upper view in FIG. 25). Even in such a case, in the electrical wiring block assembly 2, the relative position variable portions 237 and 247 serve as fulcrums, and between the electrical connection portion 235 and the terminal connection portion side 231 </ b> A and the electrical connection portion 245. Since it can be bent between the terminal connecting portion side 241A, the planes (coupling surfaces) of the respective electric connecting portions 235 and 245 can be overlapped in a state close to the nominal value. Therefore, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH can obtain the same effects as those of the first modification, and each electrical connection portion without overloading each bus bar 230, 240. 235 and 245 can be sandwiched between the connecting members 250P, and a decrease in workability when the sandwiching is performed can be suppressed (lower diagram in FIG. 25). In the illustration in the figure, for convenience, only one relative position variable unit 247 is expanded and contracted.

Here, as described above, in the connection member 250P, the free ends 252A ₁ and 252B ₁ of the respective pressing portions 252A and 252B are bent toward the outer side opposite to the insertion space 251. Therefore, the respective free ends 252A ₁ and 252B ₁ also act to pick up the respective electrical connection portions 235 and 245 that are displaced in the direction orthogonal to the coupling surface. Therefore, the connection member 250P can bring the planes of the respective electrical connection portions 235 and 245 closer to each other while picking up the respective electrical connection portions 235 and 245 with the respective free ends 252A ₁ and 252B ₁ . The connecting member 250P can overlap the planes of the electrical connection portions 235 and 245 while inserting the electrical connection portions 235 and 245 into the insertion space 251.

[Modification 3]
In this modification, the bus bar 130, 140 and the electrical connection structure 150 (connection member 150P) are connected to the following bus bar 330, 340 and the electrical connection structure 350 ( It is replaced with a connection member 350P), and only the part related to the electrical connection structure 350 is changed (FIGS. 26 to 28). Therefore, in the following, only the parts related to the electrical connection structure 350 are extracted and described. In addition, the electrical wiring block joined body 2 of this modification comprises the electrical connection box JB by accommodating in the housing | casing JBa like the modification 1 mentioned above, and connects the electric wire We to this electrical connection box JB. Thus, the wire harness WH is configured.

  The bus bar 330 has six terminal connection parts 131 formed in the same shape as the bus bar 130 of the first modification and first to third connection parts 132-134 (not shown). The electronic component EP is electrically connected to the part side 331A (FIGS. 26 to 28). Further, the bus bar 330 has an electrical connection portion 335 connected to the terminal connection portion side 331A (FIGS. 26 to 28).

  The electric connection part 335 and the terminal connection part side 331A are arranged along the arrangement direction (block arrangement direction) of the first electric wiring block 110 and the second electric wiring block 120 after joining (FIG. 26 to FIG. 26). 28). The electrical connection portion 335 is formed in a rectangular plate shape. The electrical connection portion 335 has a free end side portion extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third housing chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  The bus bar 340 includes ten terminal connection parts 141 formed in the same shape as the bus bar 140 of the first modification and first to third connection parts 142-144 (not shown). The electronic component EP is electrically connected to the connecting portion side 341A (FIGS. 26 to 28). Further, the bus bar 340 includes an electrical connection portion 345 connected to the terminal connection portion side 341A (FIGS. 26 to 28).

  The electrical connection portion 345 and the terminal connection portion side 341A are arranged along the block arrangement direction. The electrical connection portion 345 is formed in a rectangular plate shape. The electrical connection portion 345 has a free end side extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third housing chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  The bus bars 330 and 340 are coupled by overlapping the mutually disposed flat surfaces of the electrical connection portions 335 and 345 with each other. The electrical connection structure 350 is responsible for the coupling. Similar to the electrical connection structure 150 of the first modification, the electrical connection structure 350 is overlapped with the insertion space 351 in which the electrical connection portions 335 and 345 are inserted so as to overlap each other. And two pressing portions 352 that enable the respective electric connection portions 335 and 345 to be pressed between each other (FIG. 28).

  Specifically, the electrical connection structure 350 of this modification includes a connection member 350P that is a member different from the bus bars 330 and 340 (FIGS. 26 to 28). This exemplary connection member 350P is formed of a conductive material such as metal.

This connecting member 350P has two pressing portions 352A, 352B and a connecting portion 353 that are equivalent to the two pressing portions 252A, 252B and the connecting portion 253 of the connecting member 250P of Modification 2 described above (FIGS. 26 to 28). . Therefore, in this connection member 350P, the free ends 352A ₁ , 352B ₁ side of the respective pressing portions 352A, 352B serve as contact portions with the respective electrical connection portions 335, 345, and the respective electrical connection portions are formed by the respective contact portions. 335 and 345 are sandwiched in an overlapped state. Each of the free ends 352A ₁ , 352B ₁ is bent outwardly on the opposite side of the insertion space 351 in the same manner as the connection member 250P of the second modification.

  As with the connection member 250P of the second modification, the connection member 350P desirably sets a clamping force with respect to the respective electrical connection portions 335 and 345. However, since this connection member 350P needs to set its clamping force within a range that does not hinder the insertion / extraction of the respective electrical connection portions 335, 345 with respect to the insertion space 351, external force (input from the traveling vehicle body side, It is desirable to take measures when input (according to acceleration / deceleration during traveling) is added. Therefore, the electrical wiring block joined body 2 of the present modified example holds the two electrical connection portions 335 and 345 held by the connection member 350P between the electrical connection portions 335 and 345 and the connection member 350P. A mechanism 360 is provided (FIGS. 26 and 28).

  The holding mechanism 360 is provided in at least one of the first locking portion 361 provided in at least one of the two electrical connection portions 335 and 345 and the two pressing portions 352A and 352B of the connection member 350P. A second locking portion 362 that can be locked with the first locking portion 361 so that the two electrical connection portions 335 and 345 are held by the member 350P so that the holding state can be maintained; (FIG. 28). The holding mechanism 360 forms one of the first locking portion 361 and the second locking portion 362 as a projection portion, and forms the other as an insertion portion into which the projection portion is inserted.

In this illustration, the electrical connection portion 345 is provided with a first locking portion 361 as an inserted portion, and the pressing portion 352B is provided with a second locking portion 362 as a protruding portion. The first locking portion 361 is formed in the electrical connecting portion 345 as an insertion portion having a rectangular through hole shape (FIG. 28). The second locking portion 362, between the fixed end and a free end 352B ₁ of the pressing portion 352B (e.g., substantially the center of the pressing portion 352B) for forming the piece body shaped cantilevered press molding. The second locking portion 362 is protruded into the insertion space 351 by being bent toward the insertion space 351 with the fixed end side as a fulcrum (FIGS. 26, 28, and 29).

  In the holding mechanism 360, the respective electrical connection portions 335 and 345 are inserted into the insertion space 351, so that the second locking portion 362 as the projection portion becomes the first locking portion 361 as the insertion portion. Inserted (FIG. 30). Therefore, the holding mechanism 360 can suppress the detachment of the connection member 350P from the respective electrical connection portions 335 and 345. Therefore, the electrical wiring block joined body 2, the electrical junction box JB, and the wire harness WH of the present modified example have the same effect as that of the modified example 1, and the sandwiched state of the two electrical connection portions 335 and 345 by the connection member 350P. Since it can be maintained, the electrical connection between the bus bars 330 and 340 can be maintained.

[Modification 4]
In this modification, the bus bar 130 and 140 and the electrical connection structure 150 (connection member 150P) are connected to the following bus bars 430 and 440 and the electrical connection structure 450 ( The connection member 450P) is replaced, and only the portion related to the electrical connection structure 450 is changed (FIGS. 31 to 33). Therefore, in the following, only the parts related to the electrical connection structure 450 are extracted and described. In addition, the electrical wiring block joined body 2 of this modification comprises the electrical connection box JB by accommodating in the housing | casing JBa like the modification 1 mentioned above, and connects the electric wire We to this electrical connection box JB. Thus, the wire harness WH is configured.

  The bus bar 430 includes six terminal connection portions 131 formed in the same shape as the bus bar 130 of the first modification and first to third connection portions 132 to 134 (not shown). The electronic component EP is electrically connected to the part side 431A (FIGS. 31 to 33). Further, the bus bar 430 has an electrical connection portion 435 connected to the terminal connection portion side 431A (FIGS. 31 to 33).

  The electric connection portion 435 and the terminal connection portion side 431A are arranged along the arrangement direction (block arrangement direction) of the first electric wiring block 110 and the second electric wiring block 120 after joining (FIG. 31 to FIG. 31). 33). The electrical connection portion 435 is formed in a rectangular plate shape. The electrical connection portion 435 has a free end side extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third storage chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  The bus bar 440 includes ten terminal connection parts 141 formed in the same shape as the bus bar 140 of the first modification and first to third connection parts 142-144 (not shown). The electronic component EP is electrically connected to the connecting portion side 441A (FIGS. 31 to 33). Further, the bus bar 440 includes an electrical connection portion 445 connected to the terminal connection portion side 441A (FIGS. 31 to 33).

  The electrical connection portion 445 and the terminal connection portion side 441A are arranged along the block arrangement direction. The electrical connection portion 445 is formed in a rectangular plate shape. The electrical connection portion 445 has a free end side portion extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third storage chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  In the bus bars 430 and 440, the planes of the electrical connection portions 435 and 445 arranged opposite to each other are overlapped and coupled to each other. The electrical connection structure 450 is responsible for the coupling. In the same manner as the electrical connection structure 150 of the first modification, the electrical connection structure 450 is overlapped with an insertion space 451 in which the electrical connection portions 435 and 445 are inserted so as to overlap each other. In addition, two pressing portions 452 that enable the respective electric connection portions 435 and 445 to be pressed between each other are provided (FIG. 33).

  Specifically, the electrical connection structure 450 of this modification includes a connection member 450P that is a member different from the bus bars 430 and 440 (FIGS. 31 to 33). This exemplary connection member 450P is formed of a conductive material such as metal.

  The connecting member 450P includes two pressing portions 452A and 452B that are arranged to face each other with a space therebetween as the pressing portion 452 (FIGS. 31 to 33). Further, the connecting member 450P has a connecting portion 453 that connects the two pressing portions 452A and 452B (FIGS. 31 to 33). The connecting member 450P has an insertion space 451 formed between the two pressing portions 452A and 452B and the connecting portion 453.

  Each of the pressing portions 452A and 452B is formed in an equivalent rectangular plate shape, and is disposed to face each other with their respective planes facing each other. The connecting portion 453 is a portion that connects the end portions (one side) of the pressing portions 452A and 452B that are arranged to face each other. The illustrated connecting member 450P has a main body shaped like a rectangular metal plate bent at the center, and a connecting portion 453 is arranged at the bending point.

However, the respective pressing portions 452A and 452B are freer than the interval between the end portions (that is, the fixed ends) on the connection portion 453 side before the respective electrical connection portions 435 and 445 are inserted into the insertion space 451. end 452A _1, interval 452B ₁ is so formed narrower (Fig. 33). The interval between the fixed ends is set to be larger than the total thickness of the electrical connection portions 435 and 445. On the other hand, the interval between the free ends 452A ₁ and 452B ₁ is set smaller than the total value of the plate thicknesses of the respective electrical connection portions 435 and 445. In the illustrated connecting member 450P, the pressing portion 452A is formed so that the planes of the pressing portion 452A and the electric connecting portion 435 are overlapped with each other with the electric connecting portions 435 and 445 inserted. In the illustrated connecting member 450P, the other pressing portion 452B is bent to the insertion space 451 side (that is, the pressing portion 452A side) with the fixed end side as a fulcrum with the one pressing portion 452A as a reference. . Thereby, in this exemplary connection member 450P, the interval between the respective free ends 452A ₁ and 452B ₁ is made narrower than the total thickness of the respective electrical connection portions 435 and 445.

  In the electrical wiring block joined body 2 of this modification, as in Modification 3 described above, two electrical connection portions 435 formed by the connection members 450P are provided between the respective electrical connection portions 435 and 445 and the connection member 450P. , 445 is provided (FIGS. 31 and 33). The holding mechanism 460 is provided on one of the first locking portion 461 provided on each of the two electrical connection portions 435 and 445 and the two pressing portions 452A and 452B of the connection member 450P. A second locking portion 462 that can be locked with the first locking portion 461 so that the electrical connection portions 435 and 445 can be held in the clamping state ( 31 and 33). The holding mechanism 460 forms the second locking portion 462 as a protruding portion, and forms the first locking portion 461 as a through-hole-shaped insertion portion into which the protruding portion is inserted. In this illustration, the second locking portion 462 is provided in the pressing portion 452A.

  Each of the electrical connection portions 435 and 445 is formed with two first locking portions 461 arranged side by side with an interval in the block arrangement direction (FIGS. 31, 33, and 34). In each of the electrical connection portions 435 and 445, when they are overlapped with each other, one first locking portion 461 is disposed to face each other to form one through hole, and the other first locking portion 461 is disposed. They are arranged to face each other to form one through hole. In the illustrated electrical connection portion 435, the first locking portion 461 disposed on the free end side is formed as a notch-like through hole that is connected to the side portion of the free end. In the illustrated electrical connection portion 445, the first locking portion 461 disposed on the free end side is formed as a notch-like through hole that is connected to the side portion of the free end.

The second locking portion 462 provided at two positions of the free ends 452A ₁ side of the pressing part 452A (FIGS. 31 and 33). Each of the second engaging portion 462 is formed as a side portion of the free end 452A ₁ side of the pressing part 452A piece body shaped which projects into the insertion space 451 side. The illustrated second locking portion 462 protrudes in a direction orthogonal to the coupling surfaces of the respective electrical connection portions 435 and 445. In this connection member 450P, to provide two second locking portion 462 thereof, (drawing is protruded than the free end 452B ₁ of the free end 452A ₁ side and the other of the pressing portion 452B of the one pressing portion 452A 35). The second locking portion 462 has a length corresponding to the depth of one through-hole so that the first locking portions 461 are inserted into one through-hole that is disposed so as to be opposed to each other. ing.

In connection member 450P, is bent outwardly of the opposite side so as not to damage the electrical connections 445 at the free end 452B ₁ of the pressing portion 452B, an insertion space 451 to its free end 452B ₁ during insertion. Thus, in this connection member 450P, between the bent portion and two second locking portion 462 of the free end 452B _1, the insertion opening 454 of the respective electrical connection portions 435, 445 are formed (FIG. 33 And FIG. 35).

FIG. 36 shows the operation of inserting the respective electrical connection portions 435 and 445 into the insertion space 451 of the connection member 450P. In this connection member 450P, the superimposed electrical connection portions 435 and 445 are inserted into the insertion port 454, respectively. Thereafter, the connecting member 450P, as each electrical connection 435, 445 is guided into the insertion space 451, is rotated by the free end 452B ₁ side to the rotation fulcrum. As the connecting member 450P rotates, the electric connecting portions 435 and 445 are inserted into the insertion space 451 while the intervals between the free ends 452A ₁ and 452B ₁ of the pressing portions 452A and 452B are increased. Go. In the connection member 450P, when the insertion of the respective electrical connection portions 435 and 445 is close to completion, the respective second locking portions 462 are interlocked with the rotation operation, and the respective second connection portions 462 are connected to the first connection portions 435 and 445. 1 is inserted into the locking portion 461. In the connection member 450P, the insertion of the respective electrical connection portions 435 and 445 is completed at the same time as the insertion of the respective second locking portions 462.

As described above, the electrical wiring block joined body 2, the electrical junction box JB, and the wire harness WH of the present modified example have the same effect as that of the modified example 1, and the two electrical connection portions 435 and 445 by the connection member 450P. Therefore, the electrical connection between the bus bars 430 and 440 can be maintained. Further, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH use the lever principle associated with the pivoting operation of the connection member 450P, and the free ends 452A ₁ , 452A ₁ , The interval of 452B ₁ can be increased. Therefore, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH can reduce the force when assembling the connection member 450P and the electrical connection portions 435 and 445. Can be improved.

[Modification 5]
The code | symbol 3 of FIGS. 37-39 shows the electrical wiring block assembly of this modification. Although not shown here, the electrical wiring block assembly 3 is housed in the housing JBa in the same manner as in the first modification described above to constitute an electrical connection box JB, and the electric wire We is connected to the electrical connection box JB. The wire harness WH is comprised by connecting.

  The electrical wiring block assembly 3 is formed by joining a plurality of electrical wiring blocks in the same manner as in the first modification described above. In this electrical wiring block assembly 2, in this modification as well, as in Modification 1 described above, by connecting each bus bar between two electrical wiring blocks to be joined to each other, The two electric wiring blocks are joined. And this electric wiring block assembly 3 is equipped with the electrical connection structure which couple | bonds the electrical connection part of each bus bar.

  Here, an electrical wiring block assembly 3 including two electrical wiring blocks (a first electrical wiring block 510 and a second electrical wiring block 520) is illustrated (FIGS. 37 to 39). The first electric wiring block 510 (FIGS. 37 to 41) and the second electric wiring block 520 (FIGS. 37 to 39, FIGS. 42 and 43) are each formed of an insulating material such as synthetic resin.

  The first electric wiring block 510 is the same as the first electric wiring block 110 of the first modification, and houses the circuit protection component EP1 and the bus bar 530 (FIGS. 39 and 40). The first electrical wiring block 510 is formed with a first storage chamber 511 (FIG. 40) for storing and holding the circuit protection component EP1 and a second storage chamber 512 (FIG. 41) for storing and holding the bus bar 530. Has been. The circuit protection component EP1 is accommodated in the first accommodation chamber 511 through the opening 511a (FIG. 40). The bus bar 530 is accommodated in the second accommodating chamber 512 via the opening 512a (FIG. 41). In the first electrical wiring block 510, the first storage chamber 511 and the second storage chamber 512 are formed in the same quantity and arrangement as the first electrical wiring block 110.

  The bus bar 530 has six terminal connection portions 531 and first to third connection portions 532-534 formed in the same shape as the bus bar 130 of the first modification (FIGS. 39 and 40). An electronic component EP (circuit protection component EP1) is electrically connected to the terminal connecting portion side 531A. Further, the bus bar 530 has an electrical connection portion 535 connected to the terminal connection portion side 531A (FIGS. 39, 40, 44, and 45).

The electric connection portion 535 and the terminal connection portion side 531A are arranged along the arrangement direction (block arrangement direction) of the first electric wiring block 510 and the second electric wiring block 520 after bonding (FIG. 39). Electrical connection 535 is formed from a plate-shaped end 531A ₁ of the terminal connecting portion 531A in a plate shape which projects bent into an L-shape (FIG. 40, FIGS. 44 and 45). In this example, the side portion at the ends 531A ₁ of the terminal connecting portion 531A extend in the direction perpendicular to the block arrangement direction, is bent an electrical connection 535 to the L-shape from the sides. In the bus bar 530, the electrical connection portion 535 extends in a direction orthogonal to the block arrangement direction. The illustrated electrical connection portion 535 is formed in a rectangular plate shape. In this electrical connection portion 535, the side portion on the projecting direction side (free end side) extends in a direction orthogonal to the block arrangement direction and the projecting direction, and the first electrical wiring block 510 of the first electrical wiring block 510 extends along the extending direction. It inserts into the 3rd storage chamber 513 mentioned later from the opening part 513a.

Bus bar 530 of the present modification is formed a through hole 536a in the boundary portion 536 between the electrical connections 535 at the end 531A ₁ of the terminal connecting portion 531A (FIGS. 44 and 45). In the illustrated form a rectangular through-hole 536a which extend along the side portion of the end portion 531A ₁ of the terminal connecting portion 531A. Its boundary portion 536, in the direction along the side portion of the end portion 531A _1, first and second wall sandwiching the through-hole 536a (hereinafter, referred to as "first and second boundary wall." 536b and 536c remain (FIG. 44). In the third storage chamber 513, as will be described later, when the electrical connection portion 535 is stored, the first boundary wall body 536b is arranged on the opening portion 513b side, and the second boundary wall body 536c is on the opening portion 513a side. Be placed.

  The second electrical wiring block 520 is the same as the second electrical wiring block 120 of the first modification, and houses the relay EP2 and the bus bar 540 (FIGS. 39 and 42). The second electrical wiring block 520 is formed with a first storage chamber 521 (FIG. 42) for storing and holding the relay EP2, and a second storage chamber 522 (FIG. 43) for storing and holding the bus bar 540. Yes. The relay EP2 is accommodated in the first accommodation chamber 521 through the opening 521a (FIG. 42). The bus bar 540 is accommodated in the second accommodation chamber 522 through the opening 522a (FIG. 43). In the second electrical wiring block 520, the first storage chamber 521 and the second storage chamber 522 are formed in the same quantity and arrangement as the second electrical wiring block 120.

  The bus bar 540 has ten terminal connection parts 541 formed in the same shape as the bus bar 140 of the first modification and first to third connection parts 542-544 (FIGS. 39 and 42). The electronic component EP (relay EP2) is electrically connected to the terminal connecting portion side 541A. Further, the bus bar 540 has an electrical connection portion 545 connected to the terminal connection portion side 541A (FIGS. 39 and 42).

The electrical connection portion 545 and the terminal connection portion side 541A are arranged along the block arrangement direction (FIG. 39). Electrical connection 545 is formed from a plate-shaped end 541A ₁ of the terminal connecting portion 541A in a plate shape which projects bent into an L-shape (Figure 42). In this example, the side portion at the ends 541A ₁ of the terminal connecting portion 541A extend in the direction perpendicular to the block arrangement direction, is bent an electrical connection 545 to the L-shape from the sides. In the bus bar 540, the electrical connection portion 545 extends in a direction orthogonal to the block arrangement direction. The illustrated electrical connection portion 545 is formed in a rectangular plate shape. In the electrical connection portion 545, the side portion on the projecting direction side (free end side) extends in a direction orthogonal to the block arrangement direction and the projecting direction, and the first electrical wiring block 510 is extended along the extending direction. It is inserted into the third storage chamber 513 from the opening 513a.

Bus bar 540 of the present modification is formed a through hole 546a in the boundary portion 546 between the electrical connections 545 at the end 541A ₁ of the terminal connecting portion 541A (FIGS. 44 and 45). In the illustrated form a rectangular through-hole 546a which extend along the side portion of the end portion 541A ₁ of the terminal connecting portion 541A. Its boundary portion 546, in the direction along the side portion of the end portion 541A _1, first and second wall sandwiching the through-hole 546a (hereinafter, referred to as "first and second boundary wall." 546b and 546c remain (FIG. 45). In the third storage chamber 513, as described later, when the electrical connection portion 545 is stored, the first boundary wall body 546b is disposed on the opening portion 513b side, and the second boundary wall body 546c is on the opening portion 513a side. Be placed.

  In this electrical wiring block assembly 3, the opening 511a (the insertion port for the circuit protection component EP1) of the first accommodation chamber 511 and the opening 521a (the insertion port for the relay EP2) of the first accommodation chamber 521 are in the same direction. So that the opening 512a of the second storage chamber 512 (the insertion port of the bus bar 530) and the opening 522a of the second storage chamber 522 (the insertion port of the bus bar 540) open in the same direction. The first electric wiring block 510 and the second electric wiring block 520 are joined.

  In this electrical wiring block assembly 3, the third storage chamber in which the two electrical connection portions 535 and 545 and a connection member 550 </ b> P described later are accommodated is included in the first electrical wiring block 510 and the second electrical wiring block 520. At least one is provided. Here, the third storage chamber 513 is provided in the first electric wiring block 510 (FIGS. 37 to 41). The electrical connection portion 535 is inserted into the third storage chamber 513 when the bus bar 530 is stored in the second storage chamber 512. The third storage chamber 513 has an opening 513a having an opening in the same direction as the opening 512a of the second storage chamber 512 (FIG. 41). The electrical connection portion 535 is inserted from the opening 513a. Here, in the second electrical wiring block 520, when the bus bar 540 is accommodated in the second accommodation chamber 522, the electrical connection portion 545 is projected outward. Therefore, the electrical connection portion 545 accommodates the bus bars 530 and 540 in the first electrical wiring block 510 and the second electrical wiring block 520 in a state where the electrical connection portions 535 and 545 are coupled by the connection member 550P. If it does, it will be inserted in the 3rd storage chamber 513 from the opening part 513a with the electrical connection part 535 and the connection member 550P.

  On the other hand, the third storage chamber 513 has an opening 513b that opens in the same direction as the opening 511a of the first storage chamber 511 (FIGS. 37 to 40). The connecting member 550P described later joins the first electric wiring block 510 and the second electric wiring block 520 in which the respective bus bars 530 and 540 are accommodated, and thereafter inserts the electric connecting portions 535 and 545 described later. If it is inserted into the space 551, the respective electrical connection portions 535 and 545 are sandwiched while being inserted into the third storage chamber 513 through the opening 513b.

  Further, the third storage chamber 513 is provided with a notch 513c so as not to obstruct the insertion of the electrical connection portion 545 (FIG. 41).

Here, each of the bus bars 530 and 540 overlaps the respective electrical connection portions 535 and 545 in a state where the end portions 531A ₁ and 541A ₁ of the respective terminal connection portion sides 531A and 541A are arranged on the same plane. Match. Therefore, in the 3rd storage chamber 513 of the 1st electrical wiring block 510, each electrical connection part 535,545 is accommodated in such a state. The electrical wiring block assembly 3 includes an electrical connection structure 550 that joins the overlapped electrical connection portions 535 and 545 (FIGS. 39, 40, 44, and 45).

  Similar to the electrical connection structure 150 of the first modification, the electrical connection structure 550 is overlapped with the insertion space 551 in which the respective electrical connection portions 535 and 545 are inserted so as to overlap each other. And two pressing portions 552 that enable the respective electric connection portions 535 and 545 to be pressed between each other (FIGS. 40 and 44 to 46).

  Specifically, the electrical connection structure 550 of this modification includes a connection member 550P that is a member different from the bus bars 530 and 540 (FIGS. 39, 40, and 44 to 46). This exemplary connection member 550P is formed of a conductive material such as metal.

The connecting member 550P includes two pressing portions 552A, 552B and a connecting portion 553 that are equivalent to the two pressing portions 252A, 252B and the connecting portion 253 of the connecting member 250P of Modification 2 described above (from FIGS. 40 and 44). FIG. 46). Therefore, in this connection member 550P, the free ends 552A ₁ , 552B ₁ side of the respective pressing portions 552A, 552B serve as contact portions with the respective electrical connection portions 535, 545, and the respective electrical connection portions are formed by the respective contact portions. 535 and 545 are sandwiched in an overlapped state. Each of the free ends 552A ₁ , 552B ₁ is bent outwardly on the opposite side of the insertion space 551 in the same manner as the connection member 250P of the second modification.

  The connection member 550P of this modification further includes first to third protrusions 554-556 (FIG. 46).

  The first protrusion 554 protrudes from the one pressing portion 552A. The first projecting portion 554 is inserted into the through hole 536a of one bus bar 530 in a state where the insertion of the two electrical connection portions 535 and 545 into the insertion space 551 is completed. Therefore, the first protrusion 554 protrudes from the side portion of the bus bar 530 on the boundary portion 536 side of the one pressing portion 552A toward the through hole 536a of the boundary portion 536. Here, the first protrusion 554 protrudes on the same plane as the one pressing portion 552A. Therefore, the through hole 536a is arranged at a position that enables the insertion of the first protrusion 554 at the boundary portion 536.

  The second protrusion 555 protrudes from the other pressing portion 552B. The second protrusion 555 is inserted into the through hole 546a of the other bus bar 540 in a state where the insertion of the two electrical connection portions 535 and 545 into the insertion space 551 is completed. Therefore, the second protrusion 555 protrudes from the side of the other pressing portion 552B on the side of the boundary portion 546 of the bus bar 540 toward the through hole 546a of the boundary portion 546. Here, this 2nd projection part 555 is made to protrude on the same plane as the other press part 552B. Therefore, the through-hole 546a is arranged at a position that enables the insertion of the second protrusion 555 at the boundary portion 546.

  The third protrusion 556 protrudes from the connecting part 553 in the same direction as the first and second protrusions 554 and 555. This third projection 556 is in the boundary portion 536 of one bus bar 530 between the first projection 554 and the first projection 554 in the insertion completed state (the state in which the two electrical connection portions 535 and 545 are inserted into the insertion space 551). The first boundary wall body 536b is sandwiched, and the first boundary wall body 546b in the boundary portion 546 of the other bus bar 540 is sandwiched between the second protrusion 555 in the insertion completion state.

  Since the connection member 550P of the present modification has such first to third protrusions 554-556, the first connection portion 550P is inserted into the insertion space 551 while the first connection portion 550P is inserted into the insertion space 551. Only the 3rd projection part 556 of the 3rd projection parts 554-556 can be hooked on each 1st boundary wall body 536b, 546b (Drawing 47 and Drawing 48). For example, in this connection member 550P, the corners of the respective electrical connection portions 535 and 545 start to be inserted into the insertion space 551 from the openings on the first to third projection portions 554-556 side. The connecting member 550P hooks the third protruding portion 556 on the first boundary wall bodies 536b and 546b, and then rotates the second protruding portion 556 with respect to the two electric connecting portions 535 and 545 using the third protruding portion 556 as a pivot. The first and second protrusions 554 and 555 are inserted into the respective through holes 536a and 546a while being moved (FIGS. 47 and 48). In the connection member 550P, the insertion of the two electrical connection portions 535 and 545 into the insertion space 551 is completed at the same time as the insertion of the first and second protrusions 554 and 555 is completed. Therefore, this electrical connection structure 550 can reduce the force when assembling the connection member 550P and the respective electrical connection portions 535 and 545.

  Here, the first projecting portion 554 moves the connecting member 550P in the projecting direction of the two electrical connection portions 535 and 545 in the insertion completed state (the state in which the two electrical connection portions 535 and 545 are inserted into the insertion space 551). You may have the latching protrusion 554a latched by the 1st boundary wall body 536b of one bus bar 530 when it moves (FIG.44 and FIG.46). The locking projection 554a, together with the first boundary wall body 536b, acts as a holding mechanism that keeps the two electric connection portions 535 and 545 held by the connection member 550P. The locking protrusion 554a hooks the third protrusion 556 on the first boundary wall bodies 536b and 546b, and the two protrusions 556a and 546b with respect to the two electrical connection parts 535 and 545. When it is rotated, it is formed so that it can be inserted into and removed from the through hole 536a. Thereby, in the connection member 550P, the insertion / extraction with respect to the through-hole 536a of the 1st projection part 554 is not inhibited.

  Similarly, the second protrusion 555 moves to the first boundary wall body 546b of the other bus bar 540 when the connection member 550P is moved in the protruding direction of the two electric connection portions 535 and 545 in the inserted state. A locking protrusion 555a to be locked may be provided (FIGS. 45 and 46). The locking projection 555a, together with the first boundary wall body 546b, acts as a holding mechanism that keeps the two electric connection portions 535 and 545 held by the connection member 550P. The locking projection 555a hooks the third projection 556 on the first boundary wall bodies 536b and 546b, and makes the third projection 556 a rotational fulcrum, so that the two electrical connection portions 535 and 545 are connected. When it is rotated, it is formed so that it can be inserted into and removed from the through hole 546a. Thereby, in the connection member 550P, the insertion / extraction with respect to the through-hole 546a of the 2nd projection part 555 is not inhibited.

  As described above, the electrical wiring block joined body 3, the electrical junction box JB, and the wire harness WH of the present modified example have the same effects as those of the modified example 1, and the connection member 550P and the respective electrical connection portions 535, 545. The force at the time of assembling can be reduced, and the assembling workability can be improved. In addition, since the electric wiring block assembly 3, the electric junction box JB, and the wire harness WH can keep the two electric connection portions 535 and 545 held by the connection member 550P, the connection between the bus bars 530 and 540 can be maintained. It is possible to keep the electrical connection state. Further, the electric wiring block joined body 3 has the respective bus bars 530 and 540 bent in an L shape between the terminal connecting portion sides 531A and 541A and the electric connecting portions 535 and 545. The physique can be reduced in size. Such downsizing also works as useful when configured as an electrical junction box JB or a wire harness WH.

[Modification 6]
This modification is obtained by replacing the bus bars 230 and 240 with the following bus bars 630 and 640 in the electric wiring block assembly 2 of the modification 2 described above (FIGS. 49 to 52). The bus bars 630 and 640 change only the portion related to the electrical connection structure 250 (connection member 250P). Therefore, in the following, only the parts related to the electrical connection structure 250 are extracted and described. In addition, the electrical wiring block joined body 2 of this modification comprises the electrical connection box JB by accommodating in the housing | casing JBa like the modification 2 mentioned above, and connects the electric wire We to this electrical connection box JB. Thus, the wire harness WH is configured.

  The bus bar 630 includes six terminal connection portions 131 formed in the same shape as the bus bar 230 of the second modification and first to third connection portions 132-134 (not shown). The electronic component EP is electrically connected to the part side 631A (FIGS. 49 to 51). Further, the bus bar 630 has an electrical connection portion 635 connected to the terminal connection portion side 631A (FIGS. 49 and 51).

  The electric connection portion 635 and the terminal connection portion side 631A are arranged along the arrangement direction (block arrangement direction) of the first electric wiring block 110 and the second electric wiring block 120 after joining (FIG. 49 and FIG. 51). The electrical connection portion 635 is formed in a rectangular plate shape. The electrical connection portion 635 has a free end side portion extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third housing chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  The bus bar 640 includes ten terminal connection parts 141 formed in the same shape as the bus bar 240 of the second modification and first to third connection parts 142-144 (not shown). The electronic component EP is electrically connected to the connecting portion side 641A (FIGS. 49 to 51). Further, the bus bar 640 has an electrical connection portion 645 connected to the terminal connection portion side 641A (FIGS. 50 and 51).

  The electrical connection portion 645 and the terminal connection portion side 641A are arranged along the block arrangement direction (FIGS. 50 and 51). The electrical connection portion 645 is formed in a rectangular plate shape. The electrical connection portion 645 has a free end side portion extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third storage chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  In the bus bars 630 and 640, planes (coupling surfaces 635a and 645a) arranged opposite to each other of the respective electrical connection portions 635 and 645 are overlapped and coupled to each other (FIG. 52). Each of the electrical connection portions 635 and 645 is sandwiched from the outer plane (hereinafter referred to as “outward plane”) 635b and 645b by the connection member 250P of the same electrical connection structure 250 as in the second modification (FIG. 52). ). The outer planes 635b and 645b are planes opposite to the coupling surfaces 635a and 645a in the rectangular plate-like electrical connection portions 635 and 645.

  Here, the insertion space 251 of the connection member 250P has an excess space portion 251a formed by a gap between the two electrical connection portions 635 and 645 when the two electrical connection portions 635 and 645 are completely inserted. (FIG. 52). In the electrical wiring block assembly 2, it is not preferable that water generated by condensation or the like is accumulated in the excess space portion 251 a. Therefore, the electrical wiring block assembly 2 is provided with a drainage structure 660 that discharges the water in the surplus space 251a to the outside (FIGS. 49 to 52). The drainage structure 660 is provided on at least one of the two electrical connection portions 635 and 645.

  In this modification, the respective electrical connection portions 635 and 645 are formed with space portions 635c and 645c that communicate with the surplus space portion 251a and are connected to the outside of the insertion space 251, and the space portions 635c and 645c are drained. It is used as 660 (FIGS. 49 to 52). The space portions 635c and 645c are grooves formed in the outer flat surfaces 635b and 645b, and connect both end surfaces in the direction along the insertion direction of the respective electrical connection portions 635 and 645 into the third storage chamber 113. It is extended to. The illustrated space portions 635c and 645c gradually increase the groove width of the end portion on the surplus space portion 251a side as it approaches the end surface on the surplus space portion 251a side, thereby making it easier for water in the surplus space portion 251a to enter. Yes.

  As described above, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH of the present modification can discharge the water in the surplus space 251a while obtaining the same effect as that of the modification 2. . Therefore, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH can maintain the electrical connection state between the respective bus bars 630 and 640, thereby improving durability.

[Modification 7]
In this modification, the bus bars 230 and 240 and the electrical connection structure 250 (connection member 250P) are connected to the following bus bars 730 and 740 and the electrical connection structure 750 in the electrical wiring block joined body 2 of the modification 2 described above, respectively. It is replaced with a connection member 750P), and only the portion related to the electrical connection structure 750 is changed (FIGS. 53 to 56). Therefore, in the following, only the portions related to the electrical connection structure 750 are extracted and described. In addition, the electrical wiring block joined body 2 of this modification comprises the electrical connection box JB by accommodating in the housing | casing JBa like the modification 2 mentioned above, and connects the electric wire We to this electrical connection box JB. Thus, the wire harness WH is configured.

  The bus bar 730 has six terminal connection parts 131 and first to third connection parts 132-134 (not shown) formed in the same shape as the bus bar 230 of the second modification, and this terminal connection. The electronic component EP is electrically connected to the part side 731A (FIGS. 53 to 56). Further, the bus bar 730 has an electrical connection portion 735 connected to the terminal connection portion side 731A (FIGS. 53 to 56).

  The electrical connection portion 735 and the terminal connection portion side 731A are arranged along the arrangement direction (block arrangement direction) of the first electric wiring block 110 and the second electric wiring block 120 after bonding (FIG. 53 to FIG. 53). 56). The electrical connection portion 735 is formed in a rectangular plate shape. The electrical connection portion 735 has a free end side extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third storage chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  The bus bar 740 has ten terminal connection parts 141 formed in the same shape as the bus bar 240 of the second modification and first to third connection parts 142-144 (not shown). The electronic component EP is electrically connected to the connecting portion side 741A (FIGS. 53 to 56). Further, the bus bar 740 has an electrical connection portion 745 connected to the terminal connection portion side 741A (FIGS. 53 to 56).

  The electrical connection portion 745 and the terminal connection portion side 741A are arranged along the block arrangement direction (FIGS. 53 to 56). The electrical connection portion 745 is formed in a rectangular plate shape. The electrical connection portion 745 has a free end side portion extending in a direction orthogonal to the block arrangement direction, and an opening 113a in the third housing chamber 113 of the first electrical wiring block 110 along the extending direction. Is inserted from.

  The bus bars 730 and 740 are coupled so that the planes (coupling surfaces 735a and 745a) of the electrical connection portions 735 and 745 arranged to face each other overlap each other (FIGS. 56 and 57). Here, the respective electrical connection portions 735 and 745 are projected from the coupling surfaces 735a and 745a side to the outer planes (outer planes) 735b and 745b so as not to inhibit the coupling, and the respective electrical connections. In order to extend along the insertion direction of the parts 735 and 745 into the third storage chamber 113, at least one bent part 735c and 745c bent in a mountain shape is provided (FIGS. 53 to 56). In each of the bent portions 735c and 745c, space portions 735d and 745d extending along the insertion direction are formed on the coupling surfaces 735a and 745a side (FIGS. 55 to 57). The respective bent portions 735c and 745c are arranged to face each other in the overlapping direction of the respective electric connection portions 735 and 745. In this example, two bent portions 735c and 745c are provided in each of the electrical connection portions 735 and 745.

  The electrical connection structure 750 couples the electrical connection portions 735 and 745 with the bent portions 735c and 745c remaining. Similar to the electrical connection structure 250 of the second modification, the electrical connection structure 750 is overlapped with an insertion space 751 in which the electrical connection portions 735 and 745 are inserted so as to overlap each other. And two pressing portions 752 that enable the respective electric connection portions 735 and 745 to be pressed between each other (FIG. 55).

  Specifically, the electrical connection structure 750 of this modification includes a connection member 750P that is a member different from the bus bars 730 and 740 (FIGS. 53 to 57). This exemplary connection member 750P is formed of a conductive material such as metal.

  The connecting member 750P has two pressing portions 752A and 752B that are arranged to face each other with a space therebetween as the pressing portion 752 (FIGS. 53 to 57). Further, the connecting member 750P has a connecting portion 753 that connects the two pressing portions 752A and 752B (FIGS. 53 to 57). The connecting member 750P has an insertion space 751 formed between the two pressing portions 752A and 752B and the connecting portion 753.

  Each of the pressing portions 752A and 752B is formed in an equivalent rectangular plate shape, and is disposed to face each other with their respective planes facing each other. The connecting portion 753 is a portion that connects the opposing ends (one side) of the pressing portions 752A and 752B, and is formed in a rectangular plate shape.

However, the respective pressing portions 752A and 752B are freer than the distance between the end portions (that is, the fixed ends) on the connecting portion 753 side before the respective electrical connection portions 735 and 745 are inserted into the insertion space 751. end 752A _1, interval 752B ₁ is so formed narrower (Fig. 55). The interval between the fixed ends is larger than the interval between the apexes of the peaks of the bent portions 735c and 745c arranged opposite to each other. On the other hand, the interval between the free ends 752A ₁ and 752B ₁ is set smaller than the interval between the peaks of the bent portions 735c and 745c arranged opposite to each other.

The connecting member 750P has flexibility and can bend each of the pressing portions 752A and 752B with the end portion on the connecting portion 753 side as a fulcrum. Therefore, in this connection member 750P, the respective electrical connection portions 735 and 745 are inserted into the insertion space 751 while the intervals between the free ends 752A ₁ and 752B ₁ of the respective pressing portions 752A and 752B are expanded. Therefore, in this connection member 750P, the free ends 752A ₁ and 752B ₁ side of the respective pressing portions 752A and 752B serve as contact portions with the bent portions 735c and 745c of the respective electrical connection portions 235 and 245, and the respective contact portions. Thus, the respective electric connection portions 735 and 745 are sandwiched and stacked.

In this connection members 750P, each pressing portion 752A, each of the bent portion 735c at the free end of 752B 752A _1, 752B ₁ during insertion, so as not to damage the 745C, each pressing portion 752A, the free end of 752B 752A ₁ , 752B ₁ is bent outwardly from the insertion space 751 (FIG. 55).

  Also in this connection member 750P, the insertion space 751 has the two electrical connection portions 735 and 735 when the two electrical connection portions 735 and 745 are completely inserted in the same manner as the connection member 250P of Modification 6 described above. The surplus space part 751a which consists of the clearance gap between 745 is provided (FIG. 57). Therefore, the electrical wiring block assembly 2 of this modification is provided with a drainage structure 760 that discharges the water in the surplus space 751a to the outside (FIGS. 53 to 57). The drainage structure 760 is provided on at least one of the two electrical connection portions 735 and 745. FIG. 56 is a plan view of the drainage structure 760 of the electrical connection structure 750 as viewed from the drainage port side.

  Each electrical connection portion 735, 745 of this modification has space portions 735d, 745d as described above. Between the space portions 735d and 745d arranged to face each other, there is one space extending along the insertion direction of the respective electrical connection portions 735 and 745 into the third storage chamber 113, and an excess space portion 751a. Are connected to the outside of the insertion space 751. Therefore, in this modification, one space including the space portions 735d and 745d is used as the drainage structure 760. In this illustration, drainage structures 760 by the space portions 735d and 745d are provided at two locations.

  Furthermore, in the electrical connection portion 735 of this modification, a space portion 735e is also formed between the two bent portions 735c (FIGS. 53, 55, and 56). Further, in the electrical connection portion 745 of this modification, a space portion 745e is also formed between the two bent portions 745c (FIGS. 54 to 56). Each of the space portions 735e and 745e communicates with the surplus space portion 751a and is connected to the outside of the insertion space 751. Therefore, in this modification, the space portions 735e and 745e are also used as the drainage structure 760.

  As described above, the electrical wiring block joined body 2, the electrical junction box JB, and the wire harness WH of the present modification can discharge the water in the surplus space 751a while obtaining the same effect as that of the modification 2. . Therefore, since this electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH can maintain the electrical connection state between the respective bus bars 730 and 740, durability can be improved.

  Furthermore, in the electrical wiring block joined body 2, the electrical junction box JB, and the wire harness WH of the present modified example, the bent portions 735c and 745c are provided in the electrical connection portions 735 and 745, respectively. The space between the terminal connection portions 731A and 731B is expanded or contracted in the block arrangement direction, or the bending portions 735c and 745c are used as fulcrums to bend between the electrical connection portions 735 and 745 and the terminal connection portions 731A and 731B. be able to. In other words, the respective bent portions 735c and 745c can be used as the relative position variable portions as spring structures similar to the relative position variable portions 237 and 247 of the second modification for the respective electrical connection portions 735 and 745. . Therefore, the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH can sandwich the electrical connection portions 735 and 745 with the connection member 750P without overloading the bus bars 730 and 740, respectively. In addition, it is possible to suppress a decrease in workability when the sandwiching is performed.

  Furthermore, in the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH of this modification, the respective bent portions 735c and 745c are sandwiched between the connection members 750P. Accordingly, each of the bent portions 735c and 745c can act on the connection member 750P by using a reaction force against the clamping force from the connection member 750P as a spring force. Therefore, in the electrical wiring block assembly 2, the electrical junction box JB, and the wire harness WH, for example, the contact area between the connection member 750P and the electrical connection portions 735 and 745 is reduced as compared with the second modification. However, the contact load between them can be increased.

[Reference example]
The electrical connection structure may be configured as follows. The reference numeral 950 in FIGS. 58 and 59 indicates the electrical connection structure here. This electrical connection structure 950 couples the bus bars 930 and 940 in a state where the planes of the electrical connection portion 935 of one bus bar 930 and the electrical connection portion 945 of the other bus bar 940 are overlapped. is there. This electrical connection structure 950 is constituted by respective electrical connection portions 935 and 945.

  Although not shown, the bus bar 930 is formed in the same manner as the bus bar 30 of the embodiment, for example, except for the electrical connection portion 935, and includes six terminal connection portions 31, first connection portions 32, and second connection portions 33. And a third connecting portion 34.

The electrical connection portion 935 includes a rectangular flat plate portion 935a, and rectangular first and second piece portions 935b that protrude in the same direction from two opposite ends (side portions) of the flat plate portion 935a. 935c. Rectangular through holes 935b ₁ and 935c ₁ are formed in the first and second pieces 935b and 935c, respectively. The respective through holes 935b ₁ and 935c ₁ are arranged to face each other.

  Although not shown, the bus bar 940 is formed in the same manner as the bus bar 40 of the embodiment, for example, except for the electrical connection part 945, and has ten terminal connection parts 41, first connection parts 42, and second connection parts 43. And a third connecting portion 44.

  The electrical connecting portion 945 includes a rectangular flat plate portion 945a, a first flat plate-like protruding portion 945b that protrudes from the center of the end portion (one side) of the flat plate portion 945a, and both ends of the end portion (one side). Plate-like second and third projecting portions 945c and 945d that are each projected from the same plane. The electrical connecting portion 945 brings the flat plate portion 945 a, the first protruding portion 945 b, the second protruding portion 945 c, and the third protruding portion 945 d into contact with the flat plate portion 935 a of the electric connecting portion 935 of the bus bar 930.

  Here, the first projecting portion 945b is bent toward the flat plate portion 935a of the electrical connecting portion 935 at the end in the projecting direction. Further, the first projecting portion 945b can be bent with a base on the flat plate portion 945a side as a fulcrum (bending in a direction intersecting with its own plane). Therefore, the electrical connecting portion 945 overlaps the flat surfaces of the flat plate portion 945a, the second projecting portion 945c, and the third projecting portion 945d with the flat surface of the flat plate portion 935a of the electrical connecting portion 935, and the tip of the first projecting portion 945b. Is in contact with the flat surface of the flat plate portion 935a to ensure contact pressure.

When the second projecting portion 945 c is overlapped with the flat plate portion 935 a of the electrical connection portion 935, the end portion is disposed to face the first piece portion 935 b of the electrical connection portion 935. A claw portion 945c ₁ that is inserted into the through hole 935b ₁ of the first piece portion 935b is formed at the end of the second protrusion 945c. Further, when the third projecting portion 945d is overlapped with the flat plate portion 935a of the electrical connection portion 935, the end portion is disposed opposite to the second piece portion 935c of the electrical connection portion 935. A claw portion 945d ₁ that is inserted into the through hole 935c ₁ of the second piece 935c is formed at the end of the third protrusion 945d. Here, when the electric connection portions 945 are superimposed on the flat portion 935a of the electrical connection portion 935, the claw portion 945C ₁ is locked in the through-hole 935b _1, and the claw portion 945D ₁ is a through-hole 935c ₁ Locked. The respective electric connection portions 935 and 945 couple the respective bus bars 930 and 940 when in the locked state.

  Here, although the electrical connection structure 950 is configured in this way, even if this electrical connection structure 950 is used, it is difficult to connect the bus bars 930 and 940 to each other as in the conventional case. Connection members (screw fixing members, terminals, connectors, electric wires, etc.) are not required. Therefore, the electrical wiring block joined body, the electrical junction box, and the wire harness to which the electrical connection structure 950 is applied can obtain the same effects as the previous illustration.

1, 2, 3 Electrical wiring block assembly 10, 110, 510 First electrical wiring block 20, 120, 520 Second electrical wiring block 30, 40, 130, 140, 230, 240, 330, 340, 430, 440, 530, 540, 630, 640, 730, 740 Busbars 35, 45, 135, 145, 235, 245, 335, 345, 435, 445, 535, 545, 635, 645, 735, 745 Electrical connections 50, 150, 250,350,450,550,750 Electrical connection structure 51,151,251,351,451,551,751 Insertion space 52,152,252,352,452,552,752 Press part 53,153,253,353 , 453, 553, 753 connecting part 150P, 250P, 350P, 450P, 50P, 750P Connecting members 152A, 152B, 252A, 252B, 352A, 352B, 452A, 452B, 552A, 552B, 752A, 752B Pressing portions 231A, 241A, 331A, 341A, 431A, 441A, 531A, 541A, 631A, 641A 731A, 741A Terminal connecting part side 236, 246 Main coupling part 237, 247 Relative position variable part 251a, 751a Surplus space part 360, 460 Holding mechanism 361, 461 First locking part 362, 462 Second locking part 531A ₁ , 541A _One end portion 536, 546 Boundary portion 536a, 546a Through hole 536b, 546b First boundary wall body 554 First protrusion 554a Locking protrusion 555 Second protrusion 555a Locking protrusion 556 Third protrusion 635c, 645c, 735d , 7 35e, 745d, 745e Space part 660, 760 Drainage structure EP Electronic component JB Electric junction box JBa Housing We Electric wire WH Wire harness

Claims (10)

A plurality of electrical wiring blocks that electrically connect the electronic components and the bus bar inward,
An electrical connection structure that couples the electrical connection portions of the bus bars between the two electrical wiring blocks to be joined to each other;
With
The electrical connection structure has an insertion space for inserting at least one of the electrical connection portions that overlap each other, and a part of a wall surface that forms the insertion space, and is overlapped with each other in the insertion space. At least one pressing portion that allows each of the bus bars to be coupled in a state in which the electrical connection portions are overlapped with each other by enabling the electrical connection portions to be pressed between each other. Electrical wiring block assembly.   The electrical connection structure includes the other electrical connection portion that overlaps one electrical connection portion, the one pressing portion that is disposed to face the other electrical connection portion with an interval, and the other A connecting portion that connects the electrical connecting portion and the pressing portion, and the insertion space formed between the other electrical connecting portion, the pressing portion, and the connecting portion, and is inserted into the insertion space. 2. The electric wiring block assembly according to claim 1, wherein the one electrical connection portion is sandwiched between the other electrical connection portion and the pressing portion. The electrical connection structure is formed between the two pressing portions disposed to face each other with a space therebetween, a connecting portion that connects the two pressing portions, and the two pressing portions and the connecting portion. A connecting member having the insertion space;
2. The electric wiring block assembly according to claim 1, wherein the connection member sandwiches each of the electric connection portions inserted into the insertion space with the two pressing portions. The bus bar includes the electrical connection portion arranged along the arrangement direction of the two electrical wiring blocks after joining, and a terminal connection portion side to which the electronic component is electrically connected, and the electrical connection. A main connecting portion for connecting the portion and the terminal connecting portion side;
The at least one main coupling portion of the two bus bars has a relative position variable portion that varies a relative position between the electrical connection portion and the terminal connection portion side. 3. The electric wiring block assembly according to 3. A holding mechanism is provided between the electrical connecting portion and the connecting member to maintain the sandwiched state of the two electrical connecting portions by the connecting member,
The holding mechanism is provided in at least one of the two locking portions provided in at least one of the two electrical connection portions and in the two pressing portions of the connection member, and the holding mechanism is in the sandwiched state. A second locking portion that can be locked with the first locking portion so as to be able to maintain a sandwiched state,
The holding mechanism is characterized in that one of the first locking portion and the second locking portion is formed as a protruding portion, and the other of them is formed as an insertion portion into which the protruding portion is inserted. The electrical wiring block assembly according to claim 3. The bus bar includes the electrical connection portions arranged along the arrangement direction of the two electrical wiring blocks after joining, and a terminal connection portion side to which the electronic component is electrically connected, and The electrical connection portion is formed in a plate shape that is bent and projected in an L shape from the plate-like end portion on the terminal connection portion side, and a boundary portion with the electrical connection portion at the end portion on the terminal connection portion side Through-holes,
The connection member sandwiches the two electric connection portions, which are overlapped in a state where the end portions on the terminal connection portion side of each bus bar are arranged on the same plane, with the two pressing portions. There is a first protrusion that protrudes from one of the pressing portions and is inserted into the through hole of one of the bus bars in a state where the two electrical connecting portions are inserted into the insertion space, and the other pressing portion. A second protruding portion that protrudes from the connecting portion in the same direction as the first and second protruding portions; and a second protruding portion that is inserted into the through hole of the other bus bar in the insertion completed state. Have
The third protruding portion sandwiches a boundary wall body at the boundary portion of one of the bus bars with the first protruding portion in the insertion completed state, and the second protruding portion in the insertion completed state The electrical wiring block assembly according to claim 3, wherein a boundary wall body in the boundary portion of the other bus bar is sandwiched between the electrical wiring block assembly and the electrical wiring block assembly. The first protrusion has a locking protrusion that is locked to the boundary wall body of one of the bus bars when the connecting member is moved in the protruding direction of the electric connecting portion in the insertion completed state.
The second protrusion has a locking protrusion that is locked to the boundary wall body of the other bus bar when the connection member is moved in the protruding direction of the electrical connection part in the insertion completed state,
Each of the locking protrusions hooks the third protrusions to the respective boundary wall bodies, and rotates the connection member with respect to the two electric connection parts with the third protrusions as rotation fulcrums. The electric wiring block assembly according to claim 6, wherein the electric wiring block assembly is formed so as to be able to be inserted into and extracted from each of the through holes when moved. The insertion space has a surplus space portion formed by a gap between the two electrical connection portions when the two electrical connection portions are completely inserted.
The electric wiring block assembly according to claim 3, wherein at least one of the two electric connection portions has a space portion that communicates with the surplus space portion and that is connected to the outside of the insertion space. . Electronic components,
With bus bar,
A plurality of electrical wiring blocks for electrically connecting the electronic component and the bus bar inward;
An electrical connection structure that couples the electrical connection portions of the bus bars between the two electrical wiring blocks to be joined to each other;
A housing that houses a plurality of the electrical wiring blocks;
With
The electrical connection structure has an insertion space for inserting at least one of the electrical connection portions that overlap each other, and a part of a wall surface that forms the insertion space, and is overlapped with each other in the insertion space. At least one pressing portion that allows each of the bus bars to be coupled in a state in which the electrical connection portions are overlapped with each other by enabling the electrical connection portions to be pressed between each other. Electrical junction box. Electronic components,
With bus bar,
Electric wires,
A plurality of electrical wiring blocks for electrically connecting the electronic component, the bus bar and the electric wire inward;
An electrical connection structure that couples the electrical connection portions of the bus bars between the two electrical wiring blocks to be joined to each other;
A housing that houses a plurality of the electrical wiring blocks and draws the electric wires outward;
With
The electrical connection structure has an insertion space for inserting at least one of the electrical connection portions that overlap each other, and a part of a wall surface that forms the insertion space, and is overlapped with each other in the insertion space. At least one pressing portion that allows each of the bus bars to be coupled in a state in which the electrical connection portions are overlapped with each other by enabling the electrical connection portions to be pressed between each other. Wire harness.