JP2011070787A - Board terminal and printed circuit board with the same, and method of manufacturing printed circuit board - Google Patents

Abstract

A printed circuit board terminal is connected to an external electrical component such as a relay through a printed circuit of a printed circuit board, and can be connected to a separate conductive wire such as a single core wire with a small number of components and a simple structure. To provide a substrate terminal having a novel structure and a printed circuit board provided with the substrate terminal.
A lead portion provided at one end portion of a plate-like terminal body and soldered to a printed circuit of a printed circuit board, and an external electrical component provided at the other end portion of the terminal body. A connection portion 26 that is detachably connected to the current-carrying terminal portion, and an intermediate portion between the lead portion 24 and the connection portion 26 of the terminal body 20, and a separate current-carrying wire 18 is inserted. At the same time, an insertion hole 28 is provided which is fitted and locked to the conductive wire 18 and is supported at a separated position lifted on the surface of the printed circuit board 10.
[Selection] Figure 1

Description

  The present invention relates to a board terminal that protrudes from a printed circuit board and is connected to an external electrical component through a printed circuit, and a printed circuit board including the board terminal.

  2. Description of the Related Art Conventionally, as an electric junction box of an automobile, an internal circuit formed using a printed circuit board is known. This printed circuit board is equipped with a printed circuit, but if a large current conducting circuit is required, a separate conducting wire such as a single core wire is assembled to form an internal circuit in cooperation with the printed circuit. Is done.

  By the way, in many cases, a large current is required in a printed circuit board of an electrical junction box at a connection portion to an external electrical component such as a relay or a fuse. Therefore, as described in Patent Document 1 (Japanese Patent Laid-Open No. 2001-286034), a structure is proposed in which a coated single core wire can be directly connected to a terminal to which an external electrical component is connected. As shown in FIGS. 4 to 5 of the document, the base terminal of the substrate terminal described in Patent Document 1 is electrically connected to the printed circuit by soldering or the like, and is superimposed on the printed circuit board. While projecting through the insulating plate, the protruding tip is a connection terminal to an external electrical component such as a relay. Then, the coated single core wire laid on the insulating plate is sandwiched and pressed on the insulating plate at the opening formed toward the insulating plate at the press-contact portion protruding sideways on the insulating plate. By fitting and fixing to the wire, it is electrically connected to the coated single core wire.

  However, in such a conventional terminal for a board, it is necessary to mount an insulating plate for wiring a coated single core wire on a printed board, which increases the number of parts and the assembly process, and the size is large. There was a problem that it was unavoidable. In particular, after aligning the through-holes of both the printed circuit board and the insulating plate with each other and inserting the base end of the board terminal into both through-holes, the base end is placed on the printed circuit board. There was a problem that the soldering work was troublesome and the production efficiency was poor.

JP 2001-286034 A

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is a board terminal connected to an external electrical component such as a relay, which is connected to a printed circuit of a printed board. An object of the present invention is to provide a substrate terminal having a novel structure and a printed circuit board including the substrate terminal, which can connect a separate conducting wire such as a core wire with a small number of parts and a simple structure.

  Furthermore, another object of the present invention is to provide a novel method for manufacturing a printed circuit board, which is preferably used for manufacturing such a printed circuit board.

  A first aspect of the present invention is a board terminal mounted on a printed circuit board, provided at one end of a plate-like terminal main body and soldered to a printed circuit of the printed circuit board, A connecting portion provided at the other end of the terminal body and detachably connected to the energizing terminal portion of the external electrical component, and formed at an intermediate portion between the lead portion and the connecting portion of the terminal body. It is characterized by having an insertion hole for inserting a conductive wire of the body and supporting the conductive wire in a separated position lifted on the surface of the printed circuit board by fitting and locking the conductive wire.

  According to the present invention, the board terminal is connected to the printed circuit of the printed board at the lead portion, and is connected to the external electric component at the connection portion, and is connected to the energization line at the insertion hole. Thereby, the terminal for a board | substrate is connected with a printed circuit, an external electrical component, and an energization line. And according to the present invention, it is essential in the prior art by inserting the conducting wire into the insertion hole of the board terminal and supporting the conducting wire by the board terminal itself at the separated position lifted on the surface of the printed circuit board. The current-carrying wire can be connected to the board terminal without requiring a separate member such as a current-carrying-wire-supporting insulating plate. Thereby, the number of parts can be reduced and the structure can be simplified. Further, since an insulating plate that supports the conductive wire is not required, through holes on both of the insulating plate and the printed circuit board are positioned relative to each other as in Patent Document 1, and board terminals are placed in these through holes. It is not necessary to pass through, and it is possible to obtain better manufacturing efficiency.

  In addition, when connected to an external electrical component to which a relatively large electric power is supplied, such as a fuse, by using a conductive wire as a large current conductive path and connecting the terminals for the board with an electric wire, The bus bar circuit conventionally used in combination with the printed circuit board can be reduced or eliminated. As a result, further downsizing can be achieved, and material costs and mold costs associated with bus bar manufacturing can be reduced, and effective cost efficiency can be achieved especially in the case of vehicles with a small number of production. I can do it.

  According to a second aspect of the present invention, in the one described in the first aspect, the insertion hole is an irregularly shaped hole in which a wide hole and a narrow hole are continuously provided. The energization line can be loosely inserted into the wide hole portion, and the inner peripheral edge of the narrow hole portion is inserted into the surface of the energization wire by being pushed into the narrow hole portion, so that the energization line is Is to be fitted and locked.

  According to this aspect, the energization wire is loosely inserted into the wide hole portion and easily inserted into the substrate terminal, and the inner peripheral edge of the narrow hole portion is bitten into the energization wire, thereby engaging with the board terminal. The stop state can be stably maintained.

  According to a third aspect of the present invention, in the one described in the first or second aspect, the insertion hole is a through hole that is closed without being opened to the outer peripheral edge of the terminal body, An opening is formed at a position distant from the surface of the printed circuit board. In this way, even if the engagement state of the conductive wire to the board terminal is removed, the conductive wire can be held in the insertion hole and is not contacted with the printed circuit board. The state can be maintained.

  According to a fourth aspect of the present invention, in the one described in the first or second aspect, the insertion hole is an open hole that opens at one end portion of the terminal body provided with the lead portion. The conducting wire is positioned and fitted and locked at the end position on the other end side of the terminal body in the insertion hole.

  According to this aspect, since it becomes possible to insert the conducting wire from the opening portion of the insertion hole opened at one end of the terminal body, it is easy to fit and lock the conducting wire to the board terminal. Can be done.

  Note that this aspect is preferably employed in combination with the second aspect. For example, the wide hole portion is provided on one end side of the terminal body and opened, while the narrow hole portion is open. Provided on the other end side of the terminal body. In this way, it is possible to more easily insert the energization line into the insertion hole and fit and lock it.

  A fifth aspect of the present invention is a printed board on which a plurality of board terminals according to any one of the first to fourth aspects are mounted, wherein the lead portion of the board terminal is the printed board. While being soldered to the printed circuit of the board, the energization line is inserted and attached to the insertion hole of the board terminal, and the energization line is fitted and locked into the insertion hole. Thus, the wiring is supported and wired at a separated position lifted on the surface of the printed circuit board.

  According to such a printed circuit board, a plurality of circuit board terminals connected to the external electrical component and the printed circuit can be connected to each other by the energization line. Further, by supporting the energization line using the board terminal, it is possible to connect the energization line with a small number of parts and a simple structure without using a special member. Furthermore, the bus bar can be reduced by using the energization line as a large current circuit, and the manufacturing cost can be reduced.

  A sixth aspect of the present invention is a method of manufacturing a printed circuit board on which a plurality of substrate terminals according to any one of the first to fourth aspects are mounted, and a plurality of the substrate terminals are prepared. A step of bending the energization wire in advance to form an electric wire circuit, and a step of fitting and locking the energization wire in the insertion holes of the plurality of board terminals and assembling them in a conductive state. And soldering the electric wire circuit assembled with the plurality of board terminals to the printed circuit of the printed board at the lead portions of the board terminals.

  According to this manufacturing method, since the energization line bent in the shape of a desired electric wire circuit is assembled to the printed circuit board in advance, the assembly of the energization line to the printed circuit board can be performed easily and reliably. In addition, before and after the bending formation of the conducting wire and the insertion and locking of the board terminal to the conducting wire are not limited, the size and shape of the cross section of the insertion hole and the conducting wire of the board terminal, the electric wire circuit It is determined in consideration of the length, shape, etc. For example, when the electric wire circuit is long and it is difficult to fit and lock the board terminal after forming the bend, the conductive wire may be bent and formed after the board terminal is fitted and locked. .

  According to the present invention, by inserting and locking the conducting wire in the insertion state in the insertion hole of the board terminal, the conducting wire can be supported in a separated state suspended from the printed board using the board terminal. . As a result, the current-carrying wire can be supported on the printed circuit board without using a special member, and the number of parts can be reduced and the size can be reduced. Furthermore, the bus bar can be reduced by substituting the bus bar with a conductive wire, and the manufacturing cost can be further reduced.

The perspective view which shows the printed circuit board as 1st embodiment of this invention. It is a side view of the printed circuit board shown in FIG. 1, Comprising: A arrow line view in FIG. The front view of the fuse terminal which is a specific example of the terminal for board | substrates of this invention provided in the printed circuit board shown in FIG. The front view of the tab terminal which is another specific example of the terminal for board | substrates of this invention provided in the printed circuit board shown in FIG. The perspective explanatory view for explaining the loose insertion state of the terminal for substrates to the energization line. Explanatory drawing for demonstrating the attachment latching to the terminal for board | substrates of an electricity wire, and the assembly | attachment of a printed circuit board. Explanatory drawing for demonstrating the insertion latching to the terminal for board | substrates of an electrically conductive wire. The perspective view which shows the printed circuit board as 2nd embodiment of this invention. The perspective view of the fuse terminal which is another specific example of the board | substrate terminal of this invention provided in the printed circuit board shown in FIG. The perspective view of the tab terminal which is another specific example of the terminal for board | substrates of this invention provided in the printed circuit board shown in FIG. The perspective explanatory drawing for demonstrating the assembly | attachment state to the insulating board of an electrically conductive wire. Explanatory drawing for demonstrating the attachment latching to the terminal for board | substrates of an electricity wire, and the assembly | attachment of a printed circuit board. Explanatory drawing for demonstrating the insertion latching to the terminal for board | substrates of an electrically conductive wire. The perspective view which shows the terminal for board | substrates as a different aspect of this invention. The perspective view which shows the terminal for board | substrates as a further different aspect of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, FIG. 1 and FIG. 2 show a printed circuit board 10 as a first embodiment of the present invention. The printed board 10 has a conductive printed circuit 11 formed on the surface of a plate-like insulating board, and a plurality of through holes 12 electrically connected to the printed circuit 11 are arranged in the thickness direction. It is formed through. A fuse terminal 14, which is a specific example of the board terminal of the present invention, and a tab terminal 16, which is another specific example, are inserted into these through holes 12 and mounted on the printed board 10. A separate conducting wire 18 is inserted into the fuse terminal 14 and the tab terminal 16 projecting from the printed circuit board 10 and supported by these terminals 14 and 16.

  FIG. 3 shows the fuse terminal 14. The fuse terminal 14 is an integrally molded product formed by pressing a metal plate having a conductive plating layer attached to the surface thereof, and includes a plate-like terminal body 20. . In the terminal main body 20, a pair of lead portions 24, 24 are provided on a board-side edge 22 as one end located on the printed board 10 side (lower side in FIG. 3) when mounted on the printed board 10. Protrusions are formed. Further, in the terminal main body 20, a connection portion 26 is formed at an end portion opposite to the substrate side end edge portion 22. The fuse terminal 14 is detachably connected to a current-carrying terminal portion of a fuse (not shown) as an external electrical component. The connection portion 26 has a pair of projecting pieces in the width direction of the fuse terminal 14 (in the left-right direction in FIG. 3). ) In the shape of a tuning fork opposed to each other.

  In the terminal main body 20, an insertion hole 28 is provided between the lead portion 24 and the connection portion 26. The insertion hole 28 is an irregularly shaped hole having a substantially keyhole shape in which a substantially circular wide hole portion 30 and a substantially oval narrow hole portion 32 are continuously provided. In the present embodiment, the wide hole portion 30 is formed on the connection portion 26 side, and the narrow hole portion 32 is formed on the lead portion 24 side. The diameter of the wide hole portion 30 is made larger than the diameter of the circular cross section of the conducting wire 18, while the width dimension (the horizontal dimension in FIG. 3) of the narrow hole portion 32 is the diameter of the circular cross section of the conducting wire 18. Has been smaller than. Further, the outer peripheral edge portion of the insertion hole 28 is surrounded by the terminal body 20 over the entire periphery, and the insertion hole 28 is a through hole that is closed without being opened to the outer peripheral edge of the terminal body 20. . Therefore, the insertion hole 28 is formed away from the board-side edge 22 by a predetermined distance in the protruding direction of the fuse terminal 14 from the printed board 10 (vertical direction in FIG. 3).

  FIG. 4 shows the tab terminal 16. For ease of understanding, members and parts that are substantially the same as those of the fuse terminal 14 are denoted by the same reference numerals as those of the fuse terminal 14 in the drawing, and description thereof is omitted as appropriate.

  The tab terminal 16 includes the terminal body 20 and the connection portion 26 and has a substantially flat bus bar tab shape as a whole having a substantially constant width dimension. Similarly to the fuse terminal 14, a pair of lead portions 24, 24 are formed so as to protrude from the board side edge portion 22, and an insertion hole 28 is provided between the lead portion 24 and the connection portion 26. Has been.

  The lead portions 24 of the fuse terminal 14 and the tab terminal 16 are inserted into through holes 12 penetrating the printed circuit board 10 and soldered to the printed circuit 11 formed on the printed circuit board 10. 14 and 16 project from the printed circuit board 10 and are electrically connected to the printed circuit 11. The insertion amount of the lead portion 24 into the through hole 12 is regulated by the board side edge 22 of the terminal body 20 being locked to the surface 34 of the printed board 10.

  On the other hand, in consideration of the required current value and the like, the conducting wire 18 can be appropriately adopted a single core wire, a coated single core wire, a coated twisted wire, or the like made of copper, gold, or an alloy thereof. In the present embodiment, a copper single core wire is used. In addition, the cross-sectional shape of the conductive wire 18 is not particularly limited, and a rectangular shape such as a square or a rectangle, a circular shape including an ellipse, or any other shape can be appropriately employed. A circular cross section or a square cross section that can be bent in any direction is preferably employed, and in the present embodiment, a circular cross section is adopted. More preferably, the conductive wire 18 has a cross-sectional area and a strength set so that the shape after bending can be maintained, and is bent into an arbitrary shape according to a required circuit wiring shape. The

  Then, among the fuse terminals 14 projecting from the printed circuit board 10, a plurality of fuse terminals 14 and tab terminals 16 on the input side are selected, and the conductive wires 18 are inserted into the insertion holes 28 of the terminals 14 and 16. Is done. As will be described later, the conductive wire 18 is inserted into the insertion hole 28 by being inserted into the wide hole portion 30 in a loosely inserted state in each insertion hole 28 and then pushed into the narrow hole portion 32. Locked. Accordingly, the energization line 18 is inserted into and electrically connected to the tab terminal 16 connected to the external power source and the plurality of fuse terminals 14 on the input side, and the printed circuit board is formed by the fuse terminal 14 and the tab terminal 16. 10 is supported and wired. In particular, since the narrow hole portion 32 is formed at a predetermined distance from the board-side edge portion 22, the insertion hole 28 is opened at a position away from the surface 34 of the printed circuit board 10, and the width is narrow. The energizing wire 18 fitted and locked in the hole 32 is supported at a separated position lifted on the surface 34 of the printed board 10.

  An electric wire circuit 36 serving as a fuse circuit is formed by the conductive wire 18. That is, the connection part 26 of the fuse terminal 14 is detachably connected to a current-carrying terminal part of a fuse as an external electric component (not shown), while the connection part 26 of the tab terminal 16 is connected to a terminal of an external power supply (not shown). It is detachably connected to an energizing terminal portion of a connector as an external electric component provided. As a result, the external power input from the tab terminal 16 is branched to each fuse terminal 14 through the electric wire circuit 36 and supplied to the printed circuit 11 through the other fuse terminals 14 connected to the fuse terminals 14 via the fuses. The

  According to the fuse terminal 14 and the tab terminal 16 and the printed circuit board 10 using the fuse terminal 14 having such a structure, the conductive wire 18 is fitted and locked in the insertion holes 28 of the terminals 14 and 16. The conductive wire 18 can be supported on the printed circuit board 10. As a result, the energizing wire 18 can be connected to the terminals 14 and 16 without using a special member for supporting the energizing wire 18, and the number of parts can be reduced and the structure can be simplified. . Furthermore, since an appropriate cross-sectional area can be secured with the energization wire 18, it is possible to replace the bus bar circuit with the electric wire circuit 36 formed with the energization wire 18, and further reduce the manufacturing cost by reducing the bus bar. You can also

  In particular, in the present embodiment, the insertion hole 28 is a closed through hole and is spaced apart from the surface 34 of the printed circuit board 10. Even when the fitting lock state is released, the conductive wire 18 can be retained in the insertion hole 28, and the contact of the conductive wire 18 to the printed circuit 11 can be prevented, and the fuse terminal 14 and the tab terminal 16 can be prevented. It is also possible to maintain electrical connectivity.

  In addition, such a printed circuit board 10 can be suitably manufactured according to the following manufacturing method, for example. First, a plurality of fuse terminals 14 and tab terminals 16 having the specific shape are prepared. Furthermore, the electric wire circuit 36 is formed by bending the conductive wire 18 into a desired shape.

  Then, as shown in FIG. 5, the conducting wire 18 is inserted through the wide hole portion 30 of the insertion hole 28 in the fuse terminal 14 and the tab terminal 16. Since the diameter of the wide hole portion 30 is larger than the diameter of the circular cross section of the conducting wire 18, the conducting wire 18 is loosely inserted into the wide hole portion 30, and at this stage of the process, the conducting wire 18 is connected to each terminal 14, 16 is inserted non-fixedly.

  Next, as shown in FIGS. 6A and 7A, the fuse terminal 14 and the tab terminal 16 through which the conductive wire 18 is inserted are inserted into the terminal insertion hole 40 of the jig 38 from the connection portion 26 side. Then, the lead portion 24 is set in a state of protruding from the terminal insertion hole 40. At this stage, the insertion of the terminals 14 and 16 into the terminal insertion hole 40 is prevented during the insertion process by the energizing wire 18 inserted through the wide hole portion 30 being locked by the jig 38.

  Then, as shown in FIGS. 6B and 7B, the fuse terminal 14 and the tab terminal 16 are pressurized toward the jig 38, respectively. As a result, the terminals 14 and 16 are further inserted into the terminal insertion holes 40, and the conductive wires 18 loosely inserted into the wide hole portions 30 are pushed into the narrow hole portions 32. As a result, the inner peripheral edge of the narrow hole portion 32 is inserted into the surface of the conductive wire 18, and the conductive wire 18 is fitted and locked to the narrow hole portion 32. When the energizing wire 18 is a coated single core wire or the like, when being pushed into the narrow hole portion 32, the coating is broken at the inner peripheral edge of the narrow hole portion 32 and is fitted and locked to the core wire. As a result, the fuse terminal 14 and the tab terminal 16 are assembled to the conductive line 18 in a conductive state.

  Subsequently, after setting other fuse terminals 14 and tab terminals 16 (not shown) and other necessary board terminals and electrical components on the jig 38, the printed board 10 is viewed from the surface 34 side as shown in FIG. By superposing on the jig 38, the lead portions 24 of the terminals 14 and 16 are inserted into the through holes 12 and protruded from the back surface 42. Thereafter, by soldering the lead portion 24 to the printed circuit 11 from the back surface 42 side, the electric wire circuit 36 attached to each of the terminals 14 and 16 is conducted to the printed circuit 11 through the lead portion 24, and each The terminals 14 and 16 are fixed to the printed circuit board 10. And the target printed circuit board 10 can be obtained by removing from the jig 38.

  According to such a manufacturing method, the printed circuit board 10 having the structure according to the present invention can be obtained in substantially the same process as the soldering process of a conventionally known circuit board terminal to the printed circuit board with almost no increase in man-hours. Can be obtained. In particular, since the conducting wire 18 is formed in the shape of the electric wire circuit 36 in advance, the fuse terminal 14 and the tab terminal 16 can be easily inserted, and the setting to the jig 38 can be easily performed. .

  In the above manufacturing method, the fuse terminal 14 and the tab terminal 16 are inserted into the conductive wire 18 bent in advance in the shape of the electric wire circuit 36. However, the length of the conductive wire 18 is large or the shape of the electric wire circuit 36 is large. If it is difficult to insert the terminals 14 and 16 after forming the bends of the energization wires 18 due to reasons such as being complicated, the energization lines 18 are bent and formed after the terminals 14 and 16 are inserted. You may do it. For example, the current-carrying wire 18 before forming the bending may be bent after being loosely inserted into the wide hole portion 30 of the insertion hole 28 in each of the terminals 14, 16, or each terminal 14, The terminals 14 and 16 may be bent and formed in advance after the terminals 14 and 16 are fitted and locked in the narrow hole portion 32 of the insertion hole 28 at a position where the 16 is to be fitted and locked.

  Next, FIG. 8 shows a printed circuit board 50 as a second embodiment of the present invention. In the following description, members and parts having the same structure as in the first embodiment are given the same reference numerals as those in the first embodiment in the drawing, and the description will be appropriately described. Omitted.

  On the printed circuit board 50, a fuse terminal 52 and a tab terminal 54, which are other specific examples of the substrate terminal of the present invention, are projected in a state of being inserted into the through hole 12 and mounted on the printed circuit board 50. The energization wires 18 are respectively inserted into the fuse terminals 52 and the tab terminals 54 projecting from the printed circuit board 50 and supported by these terminals 52 and 54. Further, an insulating plate 56 is disposed on the surface 34 of the printed circuit board 50 in the present embodiment, and the conductive wire 18 is disposed on the insulating plate 56.

  FIG. 9 shows the fuse terminal 52. The fuse terminal 52 is an integrally molded product obtained by pressing a conductive metal plate having a plating layer attached to the surface thereof. The fuse terminal 52 is formed with a pair of lead portions 24 that are bent and protruded in a crank shape from the board-side edge portion 22 of the plate-like terminal body 20. An overlapping portion 58 that rises substantially perpendicular to the terminal body 20 is formed therebetween. The fuse terminal 52 is formed by bending a lead portion 24 by pressing a metal plate in a developed shape. Further, in the terminal main body 20, a connection portion 26 is formed at an end portion opposite to the substrate side end edge portion 22. Similarly to the fuse terminal 14 (see FIG. 3) as the first embodiment, the fuse terminal 52 is connected to a current-carrying terminal portion of a fuse as an external electric component (not shown). The portion 26 has a tuning fork shape similar to that of the fuse terminal 14.

  Furthermore, an insertion hole 60 is provided between the lead portion 24 and the connection portion 26 in the terminal body 20. The insertion hole 60 is a notch-shaped open hole that opens to the substrate-side edge portion 22 from which the lead portion 24 protrudes. The insertion hole 60 is an irregularly shaped hole having a substantially keyhole shape in which a substantially semicircular wide hole portion 30 and a substantially oval narrow hole portion 32 are continuously provided. In the present embodiment, the wide hole portion 30 is formed on the lead portion 24 side, and the narrow hole portion 32 is formed on the connection portion 26 side. The diameter of the wide hole portion 30 is made larger than the diameter of the circular cross section of the conducting wire 18, while the width dimension of the narrow hole portion 32 is made smaller than the diameter of the circular cross section of the conducting wire 18. The wide hole portion 30 is opened in the substrate side edge portion 22. As a result, the insertion hole 60 is formed including the bent portions at both ends of the overlapping portion 58, and is an open hole in which the wide hole portion 30 is formed on one bent portion side of the crank-shaped portion of the fuse terminal 52. The overlapping portion 58 protrudes from both sides sandwiching the wide hole portion 30. Then, the narrow hole portion 32 is formed continuously from the wide hole portion 30 so as to extend toward the connection portion 26, so that the narrow hole portion 32 is in contact with the substrate-side edge portion 22. 20 formed in a protruding direction from the printed circuit board 14 (vertical direction in FIG. 9) by a predetermined distance.

  FIG. 10 shows the tab terminal 54. For ease of understanding, members and portions that are substantially the same as those of the fuse terminal 52 are denoted by the same reference numerals as those of the fuse terminal 52 in the drawing, and description thereof is omitted as appropriate.

  The tab terminal 54 includes the terminal body 20 and the connecting portion 26 and has a generally flat bus bar tab shape as a whole having a substantially constant width dimension. As in the case of the fuse terminal 52, the insertion hole 60 is formed as an open hole in which the wide hole portion 30 is opened at the substrate side edge portion 22.

  On the other hand, as shown in FIG. 11, the insulating plate 56 has a substantially rectangular plate shape made of non-conductive synthetic resin. A terminal insertion hole 62 penetrating in the thickness direction is formed in the insulating plate 56 at a position overlapping the fuse terminal 52 and the tab terminal 54 protruding from the printed circuit board 50. The terminal insertion hole 62 is formed with a size that allows the entire terminals 52 and 54 including the overlapping portion 58 to be inserted. In the present embodiment, the plurality of terminals 52 and 54 can be inserted together. The size is assumed. Further, a positioning wall portion 66 projects from the surface 64 of the insulating plate 56 opposite to the printed circuit board 50. The protruding height dimension of the positioning wall portion 66 from the surface 64 is substantially equal to the diameter of the conductive wire 18.

  The insulating plate 56 is placed on the printed circuit board 50, and the conductive wire 18 is positioned by the positioning wall portion 66 and disposed on the surface 64 of the insulating plate 56. Further, the fuse terminal 52 and the tab terminal 54 on the input side are mounted on the printed circuit board 50, so that the conductive wire 18 is fitted and locked in the insertion holes 60 of the terminals 52 and 54. As will be described later, the conductive wire 18 is positioned and fitted and locked in the narrow hole portion 32 by being pushed into the narrow hole portion 32 in each insertion hole 60. As a result, the energization line 18 is inserted into and electrically connected to the tab terminal 54 connected to the external power source and the plurality of fuse terminals 52 on the input side, and on the printed circuit board 50 by these terminals 52 and 54. Supported by In particular, since the narrow hole portion 32 is formed apart from the substrate side edge portion 22, the conductive wire 18 is supported at a separation position lifted on the surface 34 of the printed circuit board 50. In addition, the conducting wire 18 may be lifted from the insulating plate 56 in a state supported by the terminals 52 and 54 and disposed on the insulating plate 56 in a non-contact state with respect to the surface 64 of the insulating plate 56. You may arrange | position in the mounting state which contacts the surface 64. FIG.

  In addition, the fuse terminal 52 and the tab terminal 54 disposed at a position overlapping the insulating plate 56 are disposed in the terminal insertion hole 62 of the insulating plate 56, and the overlapping portion 58 is interposed via the insulating plate 56. Rather, it is directly opposed to the surface 34 of the printed circuit board 50. As described above, in the present embodiment, the terminals 52 and 54 arranged at positions overlapping the insulating plate 56 are also directly projected on the printed circuit board 50 without the insulating plate 56 interposed therebetween. Further, in the present embodiment, among the fuse terminal 52 and the tab terminal 54 protruding from the printed circuit board 50, the conducting wire 18 is fitted and fixed to the terminals 52 and 54 disposed in the terminal insertion hole 62. However, for example, the conducting wire 18 may be extended outward from the insulating plate 56 and may be fixedly fitted to the fuse terminal 52 and the tab terminal 54 disposed at a position away from the insulating plate 56. good.

  According to the fuse terminal 52 and the tab terminal 54 and the printed circuit board 50 using the fuse terminal 52 having such a structure, since the insulating plate 56 is interposed between the conductive line 18 and the printed circuit board 50, the conductive line 18 The electrical insulation between the printed circuit board 50 and the printed circuit 11 can be maintained at a high level. In particular, when the distance between the fuse terminals 52 and the tab terminals 54 is large, the intermediate portion of the conducting wire 18 hangs down. Thus, the possibility of contact with the printed circuit 11 can be effectively reduced. In addition, the electric wire circuit 36 formed by the conductive wires 18 can be stably positioned and held by the insulating plate 56.

  In addition, such a printed circuit board 50 can be manufactured according to a manufacturing method substantially the same as that of the printed circuit board 10, for example. First, as shown in FIG. 11, an electric wire circuit 36 formed by bending the conductive wire 18 into a desired circuit shape in advance is superposed on the surface 64 of the insulating plate 56. The energizing wire 18 may or may not be fixed to the insulating plate 56 by fitting or bonding. Then, as shown in FIG. 12A, the fuse terminal 52 and the tab terminal 54 are respectively inserted into the terminal insertion hole 40 of the jig 38 from the connection part 26 side, and the lead part 24 is protruded from the terminal insertion hole 40. Set in state. Further, other connection terminals and electric parts are set on the jig 38 as necessary. As shown in FIG. 13A, the wide hole portion 30 of the insertion hole 60 in each of the terminals 52 and 54 opens in the protruding direction of the lead portion 24 (upward in FIG. 13) in a state where it is set on the jig 38. Will be.

  Next, as shown in FIGS. 12B and 13A, the insulating plate 56 on which the conductive wire 18 is placed is overlapped on the jig 38 from the surface 64 side. Accordingly, the fuse terminal 52 and the tab terminal 54 on which the insulating plate 56 is superimposed are inserted into the terminal insertion holes 62 of the insulating plate 56 and the wide holes of the terminals 52 and 54 inserted into the terminal insertion holes 62. The conducting wire 18 is inserted into the part 30 in a loosely inserted state. Then, as shown in FIG. 13 (b), by further bringing the insulating plate 56 closer to the jig 38, the conductive wire 18 is pushed from the wide hole portion 30 into the narrow hole portion 32, and is brought into contact with the surface of the conductive wire 18. By encroaching the inner peripheral edge of the narrow hole portion 32, the conductive wire 18 is fitted and locked to the narrow hole portion 32.

  Next, as shown in FIG. 12C, the printed circuit board 50 is superimposed on the back surface 68 of the insulating plate 56 from the front surface 34 side, so that the lead portions 24 of the fuse terminal 52 and the tab terminal 54 are inserted into the through hole 12. And project from the back surface 42. Then, the terminals 24 and 54 are fixed to the printed circuit board 10 by soldering the lead portions 24 protruding from the back surface 42 from the back surface 42 side. If necessary, the printed circuit board 50 and the insulating plate 56 may be fixed to each other by adhesion or the like. And the target printed circuit board 50 can be obtained by removing from the jig 38.

  According to such a manufacturing method, in the state where the fuse terminal 52 and the tab terminal 54 are set in the jig 38, the wide hole portion 30 of the insertion hole 60 is opened toward the conducting wire 18 (upward in FIG. 13). Therefore, the conductive wires 18 are inserted into the wide hole portions 30 of the terminals 52 and 54 so as to overlap each other and pushed into the narrow hole portions 32, so that the conductive wires 18 are fitted to the terminals 52 and 54. It is possible to perform the engagement locking at a time, and to obtain excellent production efficiency. In addition, the conductive wire 18 can be easily pushed into the narrow hole portion 32 by pushing the conductive wire 18 entirely with the insulating plate 56. Further, since the entire fuse terminal 52 and tab terminal 54 are inserted into the terminal insertion holes 62 of the insulating plate 56, each lead portion 24 is inserted only into the through hole 12 of the printed board 50. Therefore, it is not necessary to position the printed circuit board 50 with high accuracy, and a higher manufacturing efficiency can be obtained.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, FIG. 14 shows a tab terminal 70 which is a different aspect of the substrate terminal of the present invention. The tab terminal 70 has substantially the same structure as the tab terminal 54 (see FIG. 10), and the overlapping portions 58 and 58 respectively formed on the pair of lead portions 24 in the tab terminal 54 are connected. It is a single plate shape. And the wide hole part 30 is formed over the superimposition part 58, and has penetrated the superposition part 58 in the plate | board thickness direction (FIG. 14 up-down direction). In short, the tab terminal 70 is bent at a substantially central portion of the wide hole portion 30 in the insertion hole 60, thereby forming the overlapping portion 58 and opening the wide hole portion 30 to the substrate side edge portion 22. Has been. For example, according to the method of manufacturing the printed circuit board 50 according to the second embodiment, the tab terminal 70 is inserted into the wide hole portion 30 so that the end portion of the conductive wire 18 is inserted. It can be suitably used for supporting. Since the overlapping portion 58 is formed to be larger, it is possible to further stabilize the support state of the conductive wire 18 by extending the protruding state on the printed board.

  FIG. 15 shows a tab terminal 80 which is a further different aspect of the substrate terminal of the present invention. The tab terminal 80 has a substantially flat plate shape that includes the lead portion 24 and extends over a single plane in substantially the same manner as the tab terminal 16 (see FIG. 4). An insertion hole 60 that is substantially the same as the fuse terminal 52 (see FIG. 9) and the tab terminal 54 (see FIG. 10) is an open hole that opens in the board-side edge portion 22 of the terminal body 20 having a flat plate shape. It is formed as. It is also possible to form the through-hole formed as an open hole in the flat board terminal as in this embodiment. And according to this aspect, like the fuse terminal 52 and the tab terminal 54, the conducting wire 18 is inserted into the wide hole portion 30 of the insertion hole 60 opened in the board side edge portion 22 to narrow the narrow hole portion. By pushing into 32, the conducting wire 18 can be easily fitted.

  Of course, the specific shape of the board terminal is not limited to the above-mentioned shapes. For example, the shape of the connecting portion is appropriately set according to the shape of the energizing terminal portion of the corresponding external electrical component. To get. Furthermore, the specific shape of the insertion hole can be appropriately set in consideration of the cross-sectional shape of the conducting wire, the relative displacement direction at the time of fitting and locking, for example, the inner periphery of the insertion hole is linear It may be formed only by a curved shape. In addition, the relative positions of the wide hole portion and the narrow hole portion can be appropriately set in consideration of the pushing direction of the conducting wire, the supporting direction of the conducting wire when the vehicle is installed, and the like. Therefore, for example, contrary to the first and second embodiments (see FIGS. 3 and 4), the wide hole portion may be provided on the lead portion side and the narrow hole portion may be provided on the connection portion side. The wide hole portion and the narrow hole portion may be provided perpendicularly to the protruding direction of the board terminal, or may be provided so as to be inclined. Further, the insertion hole is not limited to the irregularly shaped hole in which the wide hole portion and the narrow hole portion are combined. For example, the insertion hole is formed in a single circular shape slightly smaller than the cross section of the conducting wire, It may be fitted and locked by inserting the conductive wire through the hole while sliding. Furthermore, a plurality of insertion holes may be formed in one board terminal, and a plurality of energization wires may be connected.

  In addition, the insulating plate 56 in the printed circuit board 50 as the second embodiment is not necessarily required. Therefore, in the manufacturing process, only the conductive wire 18 may be superimposed on the fuse terminal 52 and the tab terminal 54 set on the jig 38.

10, 50: Printed circuit board, 11: Printed circuit, 12: Through hole, 14, 52: Fuse terminal (terminal for board), 16, 54, 70, 80: Tab terminal (terminal for board), 18: Conducting wire, 20: terminal main body, 22: board side edge (one end), 24: lead part, 26: connection part, 28, 60: insertion hole, 30: wide hole part, 32: narrow hole part, 34: Surface, 36: Electric wire circuit, 38: Jig, 56: Insulating plate

Claims (6)

A board terminal mounted on a printed circuit board,
A lead part provided at one end of the plate-like terminal body and soldered to the printed circuit of the printed circuit board, and provided at the other end of the terminal body and attachable to and detachable from an energizing terminal part of an external electrical component A connecting portion connected to the terminal body, and an intermediate portion between the lead portion and the connecting portion of the terminal main body, and a separate energizing wire is inserted, and the energizing wire is fitted and locked to the print A board terminal having an insertion hole for supporting at a separated position suspended on the surface of the board.   The insertion hole is an irregularly shaped hole in which a wide hole portion and a narrow hole portion are continuously provided, and the energization line is freely insertable into the wide hole portion, 2. The substrate according to claim 1, wherein by pushing into the narrow hole portion, an inner peripheral edge of the narrow hole portion is inserted into a surface of the conductive wire so that the conductive wire is fitted and locked. Terminal.   The said insertion hole is made into the through-hole closed without opening to the outer periphery of the said terminal main body, The opening is formed in the position away on the surface of the said printed circuit board. Board terminal.   The insertion hole is an open hole that opens at one end of the terminal body provided with the lead portion, and the conducting wire is located at the end of the terminal body on the other end side in the insertion hole. The terminal for a board according to claim 1, wherein the terminal is positioned and fitted and locked. A printed circuit board on which a plurality of substrate terminals according to any one of claims 1 to 4 are mounted,
While the lead portion of the board terminal is soldered to the printed circuit of the printed board, the conducting wire is inserted into the insertion hole of the board terminal, and the conducting wire is mounted. The printed circuit board is supported and wired at a separated position lifted on the surface of the printed circuit board by being fitted and locked in the insertion hole. A method of manufacturing a printed circuit board on which a plurality of board terminals according to any one of claims 1 to 4 are mounted,
A step of preparing a plurality of terminals for the board, a step of forming an electric wire circuit by bending the current-carrying wires in advance, and fitting in each insertion hole of the plurality of terminals for the board with respect to the current-carrying lines A step of stopping and assembling in a conductive state, and a step of soldering the wire circuit in which the plurality of substrate terminals are assembled to the printed circuit of the printed circuit board at the lead portion of each of the substrate terminals. A printed circuit board manufacturing method.

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