JP2018156780A - Branch structure and branch box - Google Patents

Abstract

A branching structure capable of branching a wiring member made of a plurality of conductors in a desired direction in a space-saving manner is provided. A branching structure for connecting a plurality of wiring members made of a plurality of conductors, wherein an upper first flat plate portion, an upper second flat plate portion, a lower portion made of a flat conductive material are laminated. The side first flat plate portion 35, the lower mold second flat plate portion 37, and the outer peripheral edge of each of the stacked flat plate portions protrude vertically and horizontally so as to have a predetermined interval in the stacking direction, and correspond to a plurality of conductors. First connection piece 47A to 47D, second connection piece 49A to 49D, third connection piece 51A to 51D, and fourth connection piece 53A to 53D connected to each other. The second group connecting portion 41, the third group connecting portion 43, the fourth group connecting portion 45, and an insulating layer 85 provided between the plurality of flat plate portions to electrically insulate the flat plate portions from each other. . [Selection] Figure 4

Description

  The present invention relates to a branch structure and a branch box.

  For example, an electric wire that sends power from an in-vehicle battery to various parts of a vehicle body often passes through a junction box (J / B) once and is taken (branched) from the junction box to various devices.

  For example, there is a flat cable branching structure disclosed in Patent Document 1 that easily branches such an electric wire. This flat cable branching structure connects a flat cable body having a plurality of first conductors arranged in a stripe shape and a flat cable branching body having one or a plurality of second conductors arranged in a stripe shape. Then, the plurality of first conductors and the one or plurality of second conductors are conducted in an arbitrary combination. In this flat cable branching structure, the first conductor and the second conductor are arranged in a directly superimposed state or in a superimposed state with a third conductor spanned between the first conductor and the second conductor. One of the pair of conductors to be superimposed has a convex portion protruding in the opposite direction, and solder is filled between the convex portion of the one conductor and the other conductor.

JP 2015-149204 A

By the way, there is a problem that the length of the electric wire becomes long when the power is sent to various places through the J / B once from the in-vehicle battery. Moreover, since an extra electric wire increases, there exists a problem which leads to a weight increase and cost increase.
In the flat cable branch structure of Patent Document 1, the first conductor and the second conductor are arranged in a superimposed state in the connection between the flat cable branch body and the flat cable branch body, and one of the pair of conductors to be superimposed is Since it has a convex part that protrudes in the opposite direction, and solder is filled between the convex part and the other conductor, it is necessary to secure a space for arranging the convex part and the solder in the opposite direction, thereby saving space. Is disadvantageous.

  This invention is made | formed in view of the said condition, The objective is to provide the branch structure and branch box which can branch the wiring material which consists of a several conductor to a desired direction in space-saving.

The above object of the present invention is achieved by the following configuration.
(1) A branching structure for connecting a plurality of wiring members made of a plurality of conductors, wherein a plurality of flat plate portions made of a flat conductive material and laminated, and outside of the laminated flat plate portions A plurality of groups of connecting portions formed of a plurality of connecting pieces projecting vertically and horizontally from the periphery so as to have a predetermined interval in the stacking direction and connected to correspond to the plurality of conductors, and the plurality of flat plates And an insulating layer that is provided between the portions and electrically insulates between the flat plate portions.

  According to the branch structure having the configuration of (1) above, the routing material composed of a plurality of conductors can be branched in a desired direction by connecting the conductors. In the branched structure of this configuration, flat plate portions made of a flat conductive material are stacked as many as the plurality of conductors in the routing material. On the outer peripheral edge of the plurality of flat plate portions that are electrically insulated from each other by an insulating layer, a plurality of groups of connection portions composed of the same number of connection pieces as the conductors of the wiring material are directed in a desired branching direction. Is projected. When one conductor of a plurality of conductors provided in the routing material is viewed, at least three connection pieces are provided on the outer peripheral edge of one flat plate portion to branch this conductor. As described above, in the branched structure of this configuration, the plurality of flat plate portions in which the connection pieces protrude from the outer peripheral edge in the desired connection direction are stacked via the insulating layer, thereby forming a stacked conductive member. The laminated conductive members are arranged vertically and horizontally so that the connecting pieces of the flat plate portions to be laminated have a predetermined interval in the lamination direction. For this reason, compared with the case where the connection pieces are arranged only in the horizontal arrangement, the laminated conductive member can reduce the dimension in the horizontal arrangement direction because the connection pieces can be arranged in the vertical arrangement. That is, it is possible to obtain a compact branch structure in which the size of the routing surface parallel to the flat plate portion is reduced.

(2) The branch structure according to (1) above, wherein the plurality of connecting pieces protruding vertically are bent with respect to the outer peripheral edge of the flat plate portion in a direction away from each other.

  According to the branched structure having the configuration of (2) above, the upper and lower connection pieces projecting vertically in the stacking direction are bent in a direction away from each other, whereby a predetermined space is provided between the upper and lower connection pieces. Is secured. This space can be used as an arrangement space for connecting tools (bolts, connectors, etc.) for electrically connecting the connecting pieces and the routing material. Further, by bending the upper and lower connecting pieces apart from each other, the size of the laminated conductive member can be made compact while ensuring a large insulation distance. Furthermore, by bending the connection piece, it is possible to release stress from the linear direction in which the connected routing material extends, and it is possible to suppress application of excessive stress to the connection piece. In addition, by bending the connection piece according to the vehicle mounting requirements, it is possible to easily design the size of the branch box according to the requirements.

(3) The branched structure according to (1) or (2), wherein the insulating layer is formed by powder coating on at least one of a front surface and a back surface of the flat plate portion.

  According to the branched structure having the configuration of (3) above, the insulating layer by powder coating is formed in advance on at least one of the front surface and the back surface of the flat plate portion, so that the insulating layer is thinly formed and stacked. The interval between them can be reduced, and the assembling work when laminating a plurality of flat plate portions can be facilitated.

(4) A branching box characterized in that a laminated conductive member provided with the branching structure according to any one of (1) to (3) is housed in an insulating housing case.

  According to the branch box configured as described in (4) above, the laminated conductive member is housed in the housing case having insulation properties such as electrical insulation and heat insulation. Handleability is improved when attaching to the branching part.

(5) A plurality of divided housing cases each housing a plurality of the flat plate portions stacked so that the plurality of connection pieces protrude side by side are stacked and integrated so that the plurality of connection pieces protrude vertically. The branch box according to (4), which is configured as described above.

  According to the branch box configured as described in (5) above, the upper flat plate portion having the upper connection pieces that are separated from each other in the vertical arrangement and the lower connection piece among the stacked flat plate portions constituting the laminated conductive member. The lower flat plate portion having the upper divided accommodating case and the lower divided accommodating case are accommodated. Thereby, the assembly property and the handleability of the laminated conductive members that protrude in the vertical direction and the horizontal direction so that the plurality of connection pieces have a predetermined interval in the lamination direction are improved.

  According to the branching structure and the branching box according to the present invention, it is possible to branch a routing material composed of a plurality of conductors in a desired direction in a space-saving manner.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

It is an external appearance perspective view of the branch box in which the laminated conductive member provided with the branch structure which concerns on one Embodiment of this invention was accommodated. It is an external appearance perspective view of the branch box shown in FIG. 1 which removed the upper cover case. FIG. 3 is a plan view of FIG. 2. It is a perspective view of the lamination | stacking electroconductive member accommodated in the branch box of FIG. It is a principal part enlarged view of the connection piece which concerns on a modification. It is a disassembled perspective view in an upper division | segmentation accommodation case. It is a disassembled perspective view in a lower division | segmentation accommodation case. It is a top view of an upper side division | segmentation accommodation case. It is a longitudinal cross-sectional perspective view of the upper side division | segmentation storage case and the lower side division | segmentation storage case piled up back to back. FIG. 5 is a partial perspective view of a routing member connected to the laminated conductive member shown in FIG. 4. It is a front view of the left end part in the routing material shown in FIG. It is a schematic diagram showing the example of the wiring of the electric wire in the vehicle using a junction box. It is a schematic diagram showing the example of routing in the vehicle using the branch box shown in FIG. 1, and multiple types of routing material. It is explanatory drawing showing the other example of a power distribution direction. It is a principal part perspective view of the routing material using the round conductor which can be connected to the branch box shown in FIG. It is a side view showing the example of a connection of a routing material and a laminated conductive member.

Embodiments according to the present invention will be described below with reference to the drawings.
1 is an external perspective view of a branch box 11 in which a laminated conductive member 13 having a branch structure according to an embodiment of the present invention is accommodated, and FIG. 2 is a branch box shown in FIG. 1 with an upper lid case 25 removed. 11 is an external perspective view, and FIG. 3 is a plan view of FIG.
The branch structure according to the present embodiment is applied to the laminated conductive member 13 (see FIG. 4) accommodated in the branch box 11. The branch structure according to the present embodiment electrically connects a plurality of below-described wiring members 15 (see FIG. 10) made of a plurality of conductors. For example, the branch structure of the present embodiment can optimally branch the power supplied from the in-vehicle battery 17 (see FIG. 13) to the devices 19 at various locations in the vehicle.

  As shown in FIGS. 1 to 3, the branch box 11 is made of a synthetic resin having insulation properties such as electrical insulation and thermal insulation for housing the laminated conductive member 13 having the branch structure according to the present embodiment. This is a storage case. The branch box 11 is configured by vertically stacking an upper divided housing case 21 and a lower divided housing case 23. The upper divided housing case 21 and the lower divided housing case 23 have the same structure and are used back to back. An upper surface of the upper divided housing case 21 and a lower surface of the lower divided housing case 23 are closed by a lid case 25.

  The branch box 11 configured by vertically stacking the upper divided storage case 21 and the lower divided storage case 23 back to back includes a storage case and a lid case configured by the upper divided storage case 21 and the lower divided storage case 23. 25, the laminated conductive member 13 is covered. The branch box 11 is formed of a substantially hexahedron. A total of four connection openings 27 are formed on each side portion of the branch box 11 so as to protrude from each side portion. Each connection opening 27 has a plurality (four in the illustrated example) of connection ports 29. In each connection port 29, first connection pieces 47A to 47D, second connection pieces 49A to 49D, third connection pieces 51A to 51D, and fourth connection pieces 53A to 53D, which will be described later, are arranged. Respective flat conductors (conductors) 95, 97, 99, and 101 of the routing member 15 described later are electrically connected to the respective connection pieces arranged in the respective connection ports 29.

  The branch box 11 is provided with connection openings 27 in four directions. In each connection opening 27, a pair of connection ports 29 are arranged vertically along each side. Therefore, a total of four connection pieces are arranged in each connection opening 27. Therefore, the branch box 11 in the illustrated example includes a total of 16 connection pieces. In addition, since the branch direction of these power supplies in the branch box 11 depends on the routing direction of the routing material 15, it is not limited to the shape of the illustrated example, and the branch direction can be freely changed by selecting and processing the optimum position. Is something that can be done.

4 is a perspective view of the laminated conductive member 13 accommodated in the branch box 11 of FIG.
The laminated conductive member 13 accommodated in the branch box 11 is formed by laminating flat plate portions made of a plurality of flat plate conductive materials.

  In the present embodiment, the flat plate portion includes an upper first flat plate portion 31, an upper second flat plate portion 33 (see FIG. 6), a lower first flat plate portion 35 (see FIG. 7), and a lower second flat plate portion 37 (see FIG. 7). Hereinafter, these are also simply referred to as “flat plate portions”.

  The number of the flat plate portions 31, 33, 35, and 37 to be laminated is the number of flat conductors 95, 97, 99, and 101 of the wiring member 15 to be connected. In this embodiment, since the number of flat conductors 95, 97, 99, 101 of the routing member 15 described later is four, the flat plate portions are the upper first flat plate portion 31, the upper second flat plate portion 33, and the lower side. The first flat plate portion 35 and the lower second flat plate portion 37 are provided.

  In the present embodiment, the upper first flat plate portion 31, the upper second flat plate portion 33, the lower first flat plate portion 35, and the lower second flat plate portion 37, which are square flat plate portions in plan view, A plurality of first to fourth connection pieces 47A to 47D, 49A to 49D, and 51A to 51D projecting vertically and horizontally so as to have a predetermined interval in the stacking direction from the outer peripheral edges of the portions 31, 33, 35, and 37. , 53A to 53D. More specifically, the first connection pieces 47A to 47D in the upper first flat plate portion 31 and the second connection pieces 49A to 49D in the upper second flat plate portion 33 protrude side by side so as not to overlap each other in the stacking direction. ing. Further, the third connection pieces 51A to 51D in the lower first flat plate portion 35 and the fourth connection pieces 53A to 53D in the lower second flat plate portion 37 protrude side by side so as not to overlap each other in the stacking direction. ing. And these 1st connection pieces 47A-47D and 2nd connection pieces 49A-49D, and 3rd connection pieces 51A-51D and 4th connection pieces 53A-53D have a predetermined space | interval in a lamination direction mutually. It protrudes vertically.

  The first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D are electrically connected to the flat conductors 95, 97, 99, and 101 of the routing member 15, respectively. Is done. These first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D constitute a plurality of groups of connection portions.

As shown in FIG. 4, the laminated conductive member 13 of the present embodiment has a first group of connection portions 39, a second group of connection portions 41, and a third group of connection portions 43 on each side portion. In addition, a total of four groups of connection parts, including the fourth group of connection parts 45, are provided.
First to fourth connection pieces 47A, 49A, 51A, 53A are arranged in the first group of connection portions 39, and first to fourth connection pieces 47B, 49B are arranged in the second group of connection portions 41. , 51B, 53B are arranged, the first group to the fourth connection pieces 47C, 49C, 51C, 53C are arranged in the third group of connection parts 43, and the first group of connection parts 45 are arranged in the first to fourth areas. Fourth connection pieces 47D, 49D, 51D, and 53D are arranged. Each connection piece is provided with a bolt fixing hole 79 for electrically connecting the flat conductors 95, 97, 99, and 101 of the wiring member 15 by bolt fastening.

FIG. 5 is an enlarged view of a main part of a connection piece according to a modification.
The bolt fixing holes 79 formed in the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D shown in FIG. 4 are like the connection pieces 71 and 73 shown in FIG. In addition, the elongated hole 81 can be made long in the extending direction of the routing member 15. The routing member 15 used in the branch structure of the present embodiment is manufactured in a shape that matches the installation location because of the structure in which flat conductors 95, 97, 99, and 101 made of metal plates are laminated. Therefore, it may be difficult to fasten the bolt due to manufacturing tolerances of the mounted surface and the routing material itself. Therefore, by making the bolt fixing holes of the connection pieces 71 and 73 into the long holes 81 along the extending direction of the routing material 15, the connection workability between the branch box 11 and the routing material 15 can be improved. In addition, by providing the elongated holes 81 in the connection pieces 71 and 73, the wiring member 15 can relax manufacturing tolerances, so that manufacturing costs can be reduced.

6 is an exploded perspective view of the upper divided housing case 21, and FIG. 7 is an exploded perspective view of the lower divided housing case 23.
The laminated conductive member 13 according to this embodiment is divided and accommodated in an upper divided accommodating case 21 and a lower divided accommodating case 23 that constitute an accommodating case of the branch box 11.
The upper divided housing case 21 accommodates the upper first flat plate portion 31 and the upper second flat plate portion 33 shown in FIG.
The upper first flat plate portion 31 has first connection pieces 47A to 47D, and the upper second flat plate portion 33 has second connection pieces 49A to 49D.

  The upper first flat plate portion 31 has a vacant space 83 between the first group of connection portions 39 and the second group of connection portions 41. When the flat plate portions are stacked, the upper first flat plate portion 31 is connected to the second second flat plate portion 33. Two connection pieces 49A and a second connection piece 49B are arranged.

The lower divided housing case 23 houses the lower first flat plate portion 35 and the lower second flat plate portion 37 shown in FIG.
The lower first flat plate portion 35 has third connection pieces 51A to 51D, and the lower second flat plate portion 37 has fourth connection pieces 53A to 53D.

  The lower first flat plate portion 35 has a vacant space 83 between the first group of connection portions 39 and the second group of connection portions 41, and when the flat plate portions are stacked, the lower second flat plate portion 37 is here. The fourth connection piece 53A and the fourth connection piece 53B are arranged.

  In the branch box 11 of the present embodiment, a plurality of flat plate portions stacked so that a plurality of connection pieces protrude side by side are accommodated in an upper divided accommodating case 21 and a lower divided accommodating case 23. The upper divided housing case 21 and the lower divided housing case 23 are integrally configured such that a plurality of connection pieces in the accommodated flat plate portions are stacked so as to protrude vertically.

  The laminated conductive member 13 having the branch structure according to the present embodiment includes first and second connection pieces 47A to 47D and second connection pieces 49A to 49D, and third connection pieces 51A to 51D and first protrusions that protrude vertically. The four connection pieces 53A to 53D are bent in a crank shape with respect to the outer peripheries of the flat plate portions 31, 33, 35, 37 in a direction away from each other. The bent portions of these connecting pieces are flat conductors of the wiring member 15 when the connecting pieces are arranged side by side by laminating flat plate portions having connecting pieces protruding side by side so as not to overlap in the stacking direction. Each connecting piece can be bent in consideration of the plate thickness of the flat plate portion so that the heights of the connecting piece tips connected to each other are the same. For example, in the connection portion 39 of the first group, the bent portion is overlapped so that the first connection piece 47A and the third connection piece 51A protrude vertically, and the second connection piece 49A and the fourth connection piece The connection pieces 53A are stacked so as to protrude vertically. The same applies to the connection parts 41, 43, 45 of the other second group to fourth group.

  Here, in the above-described laminated conductive member 13, the upper first flat plate portion 31 having the first connection pieces 47A to 47D, the upper second flat plate portion 33 having the second connection pieces 49A to 49D, and the third The lower first flat plate portion 35 having the connection pieces 51A to 51D and the lower second flat plate portion 37 having the fourth connection pieces 53A to 53D can use conductive members having the same shape. That is, the upper first flat plate portion 31 shown in FIG. 6 can be rotated 180 degrees to be the upper second flat plate portion 33, and the upper first flat plate portion 31 is turned over to be the lower first flat plate portion 35. The upper first flat plate portion 31 can be rotated 180 degrees and turned upside down to form the lower second flat plate portion 37.

The laminated conductive member 13 includes each flat plate between a plurality of flat plate portions (upper first flat plate portion 31, upper second flat plate portion 33, lower first flat plate portion 35, lower second flat plate portion 37). An insulating layer 85 that electrically insulates the parts is provided.
The insulating layer 85 can be formed, for example, by powder coating on at least one of the front and back surfaces of the flat plate portions 31, 33, 35, and 37. In the present embodiment, an insulating layer 85 is formed by powder coating on the front and back surfaces of the flat plate portions 31, 33, 35, and 37. There are mainly two types of powder coating: “electrostatic coating method (spray coating)” and “fluid dipping method (dip coating)”.

  The “electrostatic coating method” is a method in which a paint is charged with a spray gun and applied to an object to be grounded using static electricity. The “electrostatic spray method” makes it easy to manage the coating film with a thin film of about 50 microns. The thermosetting paint used in the “electrostatic spray method” undergoes a chemical change (crosslinking) by applying heat, and its properties change. Since various performances can be added by the cross-linking reaction, a paint can be selected according to the application. Commonly used base resins are polyester resins, acrylic resins, epoxy resins, hybrid (epoxy / polyester) resins and the like.

  In the “fluid dipping method”, a flat plate-shaped member is cleaned and preheated in a preheating furnace. Next, immersion is performed in a fluid immersion tank. In the immersion, a porous plate is disposed at the bottom of the fluid immersion tank, and the coating material is flowed by sending compressed air from the porous plate, and the preheated flat plate-shaped member is immersed in the flowing coating material. The paint in the fluid immersion bath is fused to the flat plate member by heat to form a thick film. Thereby, the flat plate-shaped member in which the insulating layer 85 is formed is obtained. The flat plate member becomes a flat plate portion on which the insulating layer 85 is formed through post-processing. In the “fluid dip coating method”, a film thickness of usually 200 to 500 microns can be applied.

  In the manufacture of the insulating layer 85 of the upper first flat plate portion 31, the upper second flat plate portion 33, the lower first flat plate portion 35, and the lower second flat plate portion 37, for example, connection pieces (first to first plates) The surface of the portion to be the fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, 53A to 53D) is masked by using a masking tape or the like. The connecting piece may have a bolt fixing hole 79 or the like drilled in advance by drilling. The insulating layer 85 is not formed on the connection pieces of the masked flat plate portions 31, 33, 35, and 37. Therefore, the connection pieces (first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, 53A to 53D) which are exposed portions of the conductive material in the flat plate portions 31, 33, 35 and 37 are: It can be used as a connection terminal. Therefore, the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D are connected to the flat conductor 95 of the routing material 15 by bolt fastening using the bolt fixing holes 79. Conductive connection can be established with the routing material connecting portions 103, 105, 107, and 109 in 97, 99, and 101, respectively.

FIG. 8 is a plan view of the upper divided housing case 21, and FIG. 9 is a longitudinal sectional perspective view of the upper divided housing case 21 and the lower divided housing case 23 stacked back to back.
The upper divided housing case 21 and the lower divided housing case 23 can be shared. That is, two things of the same shape can be used back to back. Accordingly, the lid case 25 can also have the same shape.
The upper divided housing case 21 and the lower divided housing case 23 having the same shape have flat joining surfaces. A flat plate accommodating recess 87 is formed on the surface opposite to the coupling surface. The two connection ports 29 described above are formed at positions higher than the flat plate portion receiving recess 87 in the four sides surrounding the flat plate portion receiving recess 87. Each connection port 29 is partitioned by a partition wall 89. At the bottom of each connection port 29, for example, a recess 91 for planting a stud bolt 80 is formed. The stud bolt 80 may be insert-molded in advance in the upper divided housing case 21 and the lower divided housing case 23. Screw holes 93 for fixing the upper divided housing case 21 and the lower divided housing case 23 together with the lid case 25 together with fixing bolts (not shown) to the outside of the respective corners of the flat plate housing recess 87. Is formed.

10 is a partial perspective view of the routing material 15 connected to the laminated conductive member 13 shown in FIG. 4, and FIG. 11 is a front view of the left end portion of the routing material 15 shown in FIG.
A wiring member 15 is connected to the laminated conductive member 13 accommodated in the branch box 11. The wiring member 15 can be applied to multiple circuits by laminating flat conductors 95, 97, 99, and 101 covered with an insulating layer 85. FIG. 10 illustrates the case of the routing material 15 including four flat conductors 95, 97, 99, and 101, but the number of layers (number of layers) is not limited to this. The four-layer flat conductors 95, 97, 99, and 101 are integrated by, for example, a plurality of clamp members arranged at predetermined intervals along the longitudinal direction.

  The routing material connecting portions 103, 105, 107, and 109 of the routing material 15 can be formed with a width that is substantially half of the entire width of the flat conductors 95, 97, 99, and 101. Accordingly, as shown in FIG. 10, the wiring member 15 has the upper first wiring member connecting portion 103 arranged in the right half of the width direction of the flat conductor 95 of the first layer from the top, and the second layer from the top. The upper second wiring member connecting portion 105 is disposed on the left half of the flat conductor 97 in the width direction. On the other hand, the wiring member 15 has the lower first wiring member connecting portion 107 arranged on the right half in the width direction of the third layer flat conductor 99 from the top, and the fourth layer flat conductor 101 from the top. The lower second routing member connecting portion 109 is disposed in the left half of the width direction. Hereinafter, these are also simply referred to as “laying material connecting portions”.

  These wiring member connecting portions are formed by bending the flat conductors 95 and 99 in a direction in which the upper first wiring member connecting portion 103 and the lower first wiring member connecting portion 107 are separated from each other. The upper second cabling material connecting portion 105 and the lower second cabling material connecting portion 109 are formed to be bent with respect to the flat conductors 97 and 101 in a direction away from each other. Bolt fixing holes 111 for fastening the bolts to the connecting portions 39, 41, 43, 45 of the first group to the fourth group of the branch box 11 are drilled in the connecting member connecting portions 103, 105, 107, 109. Is done.

  By the way, for example, the wiring member 15 may be configured by stacking flat conductors 95, 97, 99, and 101 in the order of 48V minus, 48V plus, 12V plus, and 12V minus from the lower layer. it can. In this case, it is preferable that adjacent layers have the same polarity. In the routing material 15 of the illustrated example, “48V plus” and “12V plus” are adjacent in the second layer and the third layer. Thus, the routing material 15 in which multiple circuits are stacked can improve the noise resistance performance by arranging the same poles adjacent to each other.

Next, the operation of the above configuration will be described.
In the branch structure according to the present embodiment, the routing member 15 including the plurality of flat conductors 95, 97, 99, and 101 can be branched in a desired direction by connecting the conductors. In the branching structure of the present embodiment, the upper first flat plate portion 31, the upper second flat plate portion 33 made of a conductive material having a flat plate shape as many as the plurality of flat conductors 95, 97, 99, and 101 in the routing material 15, The lower first flat plate portion 35 and the lower second flat plate portion 37 are stacked. The same number of flat conductors 95, 97, 99, 101 of the routing member 15 is provided on the outer peripheral edges of the plurality of flat plate portions 31, 33, 35, 37 that are electrically insulated from each other by the insulating layer 85. The first to fourth group connection portions 39, 41, 43, 45 constituted by the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D are arranged in a desired branch direction. Projected toward. When one flat conductor 95 of a plurality of conductors provided on the routing material 15 is viewed, at least 3 on the outer peripheral edge of one upper first flat plate portion 31 is to branch the flat conductor 95. One first connection piece 47A is provided. In the present embodiment, four first connection pieces 47A are provided.

As described above, in the branch structure of the present embodiment, the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D are projected from the outer peripheral edge in a desired connection direction. The parts 31, 33, 35, and 37 constitute the laminated conductive member 13 by being laminated via the insulating layer 85.
In the laminated conductive member 13, the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D in the flat plate portions 31, 33, 35, and 37 to be laminated are predetermined in the lamination direction. They are arranged vertically and horizontally so as to have an interval. For this reason, as compared with the case where the connection pieces are arranged only in the horizontal arrangement, the laminated conductive member 13 can reduce the dimension in the horizontal arrangement direction because the connection pieces can be arranged in the vertical arrangement. That is, it is possible to obtain a compact branch structure in which the size of the routing surface parallel to the flat plate portions 31, 33, 35, and 37 is reduced. As a result, in the branch structure of the power supplied from the in-vehicle battery 17, it is possible to suppress an increase in extra wires, reduce the weight, and reduce the cost.

  Further, in the branch structure according to the present embodiment, the upper and lower first connection pieces 47A to 47D and the second connection pieces 49A to 49D that protrude vertically in the stacking direction, the third connection pieces 51A to 51D, and the first connection pieces The four connection pieces 53A to 53D are bent in a direction away from each other, and a predetermined connection space is secured between the connection pieces. This connection space is formed by bolting the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, 53A to 53D and the flat conductors 95, 97, 99, and 101 of the routing material 15 with bolts. It can be used as an arrangement space or the like for planting stud bolts 80 which are connecting tools for connection.

  In addition, as described above, the size of the laminated conductive member 13 can be made compact while ensuring a large insulation distance by bending the upper and lower connecting pieces apart from each other. Further, the first to fourth connecting pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D are bent to release stress from the linear direction in which the connected routing material 15 extends. And the breakage of the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D can be suppressed. In addition, the first to fourth connecting pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D can be bent according to vehicle mounting requirements, so that the size design of the branch box 11 can be easily achieved. It becomes.

  In the branch structure according to the present embodiment, the insulating layer 85 by powder coating is provided on at least one of the front surface and the back surface of each flat plate portion 31, 33, 35, 37 (both the front surface and the back surface in the present embodiment). By being formed in advance, it is possible to reduce the interval between the flat plate portions laminated by forming the insulating layer 85 to be thin, and to facilitate the assembly work when the plurality of flat plate portions 31, 33, 35, 37 are stacked. it can.

  And in the branch box 11 which concerns on this embodiment, since the lamination | stacking electroconductive member 13 is accommodated in the accommodation case made from the synthetic resin which has insulation, such as electrical insulation and heat insulation, of the branch box 11, a vehicle etc. The handling property when the wiring member 15 (electric wire) is attached to the branching portion is improved.

  In the branch box 11 of the present embodiment, among the stacked flat plate portions 31, 33, 35, and 37 that constitute the laminated conductive member 13, the upper connection pieces (first connection pieces 47 </ b> A˜ 47D and second connection pieces 49A to 49D) and upper connection plate parts (upper first plate part 31 and upper second plate part 33), and lower connection pieces (third connection pieces 51A to 51D and fourth connection pieces). The lower flat plate portions (the lower first flat plate portion 35 and the lower second flat plate portion 37) having the connection pieces 53A to 53D) are divided into the upper divided storage case 21 and the lower divided storage case 23, respectively. Be contained. Accordingly, the plurality of connection pieces (first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D) are arranged vertically and horizontally and at a predetermined interval in the stacking direction. Assembling property and handling property of the protruding laminated conductive member 13 are improved.

As shown in FIG. 12, for example, in the case of a conventional wiring arrangement in which the power is supplied from the vehicle-mounted battery 17 to the devices 19 at various places through the junction box 113 once, there is a problem that the wire length becomes long. In addition, since the number of extra wires 115 increases, there is a problem that leads to an increase in weight and cost.
On the other hand, as shown in FIG. 13, in this embodiment using the branch box 11 and the routing material 15, in the example of routing in the vehicle, the branch box 11 is provided at a necessary portion of the routing material 15 from the in-vehicle battery 17. Since the power can be sent from the respective branch boxes 11 to the devices 19 in various places, the length of the electric wire can be shortened. Moreover, since the unnecessary electric wire 115 does not increase, a weight and cost can be reduced.

FIG. 14 is an explanatory diagram showing another example of the power distribution direction.
In the branching structure of the present invention, the protruding position of the connecting piece in each flat plate portion is not limited to the position of the above embodiment. For example, in the configuration example of the laminated conductive member 13A shown in FIG. 14, unlike the laminated conductive member 13 shown in FIG. 3, the upper first flat plate to which the routing member 133 is connected in the second group connection portion 41. The first connection piece 47A electrically connected to the first connection piece 47B of the portion 31 is disposed at the lower position in FIG. 14, and the fourth connection piece 47D is at the right position in FIG. It is arranged. As a result, it is also possible to connect wiring members having different conductor arrangements to the first group of connecting portions 39 and the fourth group of connecting portions 45, and to change the circuit after branching such as a power source.

  Further, the branch structure according to the present embodiment does not necessarily have to be connected to the routing member 15 composed of the flat conductors 95, 97, 99, and 101. For example, as shown in FIG. 15, a plurality of round conductors 117 with insulation coating can connect the routing member 121 bundled by a clamp 119 or the like. Each round conductor 117 has an end portion 123 formed in an LA terminal shape connected to the first to fourth connection pieces 47A to 47D, 49A to 49D, 51A to 51D, and 53A to 53D of the branch box 11, respectively. The

  Further, as shown in FIG. 16, for example, a pair of LA terminals 120 connected to a wiring member 130 made of an electric wire on the first connection piece 47 </ b> A and the third connection piece 51 </ b> A in the first group of connection portions 39. Can be connected together for electrical connection. As described above, according to the branch box 11 having the branch structure according to the present embodiment, the routing member 15 including the flat conductors 95, 97, 99, and 101 and the routing member 130 including the electric wire are branched and connected. You can also.

Therefore, according to the branching structure according to the present embodiment, the routing members 15, 121, 130 made of a plurality of conductors (flat conductors, round conductors, electric wires) can be branched in a desired direction in a space-saving manner.
According to the branch box 11 according to the present embodiment, it is possible to optimally (compactly and easily) distribute the power supply to various places where the power supply is desired by being installed on the trunk line routed from the in-vehicle battery 17.

  The present invention is not limited to the above-described embodiments, and the configurations of the embodiments may be combined with each other, or may be modified or applied by those skilled in the art based on the description of the specification and well-known techniques. The invention is intended and is within the scope of seeking protection.

For example, in the branch box having the above-described configuration, the case where the flat plate portion is a quadrangle has been described as an example. It may be a polygon such as a square or an octagon. Moreover, in the above configuration, the connection piece of the flat plate portion and the conductor of the wiring material have been described as being connected by bolt fastening, but the connection piece and the conductor are welded such as ultrasonic bonding or friction stir welding, Or you may connect directly by the fitting latching structure formed in both.
Moreover, the insulating layer which is provided between the plurality of flat plate portions and electrically insulates between the flat plate portions can be formed of an insulating sheet. Since the insulating sheet having a predetermined shape is interposed between the flat plate portions, an insulating layer can be formed at low cost between the flat plate portions to be laminated.

  In addition, the laminated conductive member 13 according to the present embodiment includes an upper first flat plate portion 31 and an upper side in an upper divided housing case 21 and a lower divided housing case 23 that form a housing case of the branch box 11, respectively. The second flat plate portion 33, the lower first flat plate portion 35, and the lower second flat plate portion 37 are accommodated separately. The branched structure of the present invention is not limited to this, and the laminated conductive member 13 may be accommodated in one accommodation case. That is, in the present invention, a plurality of laminated flat plate portions are formed by directly laminating flat plate portions to form a laminated conductive member or a laminated conductive member via a housing case as in the above embodiment. This includes cases where

Here, the features of the embodiments of the branch structure and the branch box according to the present invention described above are briefly summarized and listed in the following [1] to [5], respectively.
[1] A branch structure for connecting a plurality of wiring members (15) composed of a plurality of conductors (flat conductors 95, 97, 99, 101), which is made of a flat conductive material and laminated. A plurality of flat plate portions (upper first flat plate portion 31, upper second flat plate portion 33, lower first flat plate portion 35, lower mold second flat plate portion 37) and the stacking direction from the outer peripheral edge of each of the stacked flat plate portions. A plurality of connection pieces (first connection pieces 47A to 47D, second connection pieces 49A to 49D, respectively) projecting vertically and horizontally so as to have a predetermined interval, and connected corresponding to the plurality of conductors. A plurality of groups of connection parts (first group connection part 39, second group connection part 41, third group connection part) constituted by third connection pieces 51A to 51D and fourth connection pieces 53A to 53D). 43, a fourth group connecting portion 45) and each of the flat plates provided between the flat plate portions. A branch structure comprising: an insulating layer (85) for electrically insulating parts.
[2] A plurality of connection pieces (first connection pieces 47A to 47D, second connection pieces 49A to 49D, third connection pieces 51A to 51D, and fourth connection pieces 53A to 53D) projecting vertically. , Bent in the direction away from each other with respect to the outer peripheral edge of the flat plate portion (upper first flat plate portion 31, upper second flat plate portion 33, lower first flat plate portion 35, lower mold second flat plate portion 37). The branched structure according to [1] above, wherein
[3] The insulating layer (85) is formed on the front and back surfaces of the flat plate portions (upper first flat plate portion 31, upper second flat plate portion 33, lower first flat plate portion 35, lower mold second flat plate portion 37). The branched structure according to [1] or [2], wherein at least one is formed by powder coating.
[4] The laminated conductive member (13) having the branch structure according to any one of [1] to [3] described above is an insulating storage case (upper divided storage case 21 and lower divided storage case). 23) A branch box (11), characterized in that it is housed within.
[5] A plurality of the connection pieces (first connection pieces 47A to 47D and second connection pieces 49A to 49D, third connection pieces 51A to 51D, and fourth connection pieces 53A to 53D) protrude side by side. A plurality of divided housing cases each housing a plurality of the flat plate portions (the upper first flat plate portion 31 and the upper second flat plate portion 33, the lower first flat plate portion 35 and the lower mold second flat plate portion 37) stacked in this manner. The branch according to [4] above, wherein (the upper divided housing case 21 and the lower divided housing case 23) are integrally formed such that a plurality of the connecting pieces are stacked so as to protrude vertically. Box (11).

DESCRIPTION OF SYMBOLS 11 ... Branch box 13 ... Laminated conductive member 15 ... Routing material 21 ... Upper side division | segmentation accommodation case (division accommodation case)
23 ... Lower divided housing case (divided housing case)
31 ... Upper first flat plate portion (flat plate portion)
33 ... Upper second flat plate portion (flat plate portion)
35 ... Lower first flat plate portion (flat plate portion)
37 ... Lower second flat plate portion (flat plate portion)
39: First group connection section (connection section)
41 ... Second group connection part (connection part)
43 ... Third group connection (connection)
45 ... Fourth group connection (connection)
47A-47D ... 1st connection piece (connection piece)
49A-49D ... 2nd connection piece (connection piece)
51A-51D ... 3rd connection piece (connection piece)
53A-53D ... 4th connection piece (connection piece)
85 ... Insulating layer 95, 97, 99, 101 ... Flat conductor (conductor)

Claims (5)

A branch structure for connecting a plurality of wiring members made of a plurality of conductors,
A plurality of flat plate portions made of a flat conductive material and laminated;
A plurality of groups formed of a plurality of connection pieces that protrude vertically and horizontally from the outer peripheral edge of each of the laminated flat plate portions so as to have a predetermined interval in the lamination direction and are connected to correspond to the plurality of conductors. The connection of
An insulating layer provided between the plurality of flat plate portions to electrically insulate between the flat plate portions;
A branch structure comprising:   The branch structure according to claim 1, wherein the plurality of connecting pieces protruding vertically are bent with respect to the outer peripheral edge of the flat plate portion in a direction away from each other.   The branched structure according to claim 1 or 2, wherein the insulating layer is formed by powder coating on at least one of a front surface and a back surface of the flat plate portion.   A branched box, wherein the laminated conductive member having the branch structure according to any one of claims 1 to 3 is housed in an insulating housing case.   A plurality of divided housing cases each housing a plurality of the flat plate portions stacked so that the plurality of connection pieces protrude side by side are configured so as to be overlapped so that the plurality of connection pieces protrude vertically. The branch box according to claim 4, wherein the branch box is provided.

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