JP2006164538A - Electrical connection member assembly method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical connection member assembly method for easily and quickly assembling an electrical connection member contributing to a great decrease in electrical connection work man-hours of an electric circuit board. <P>SOLUTION: A columnar body 39 formed of an insulating material is prepared. A conductive member integrated area 45 having a plurality of strip of sections 41 and a plurality of connection sections 45a formed integrally of a conductive metal plate by press machining is prepared. The columnar body 39 has a plurality of grooves 39b formed so that they are extended in parallel with one another in the longitudinal direction. In the conductive member integrated area 45, the plurality of strips of sections 41 are provided in parallel with gaps and both ends of the plurality of strip of sections 41 are connected by a connection section 45a. The plurality of strips of sections 41 of the conductive member integrated area 45 are collectively embedded to the plurality of grooves 39b in the columnar body 39, thus cutting the plurality of strips of members 41 projecting from both the ends of the columnar body 39 along the connection section 45a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electrical connection member assembling method.

  A vehicle such as an automobile has a large number of electrical components and an electronic control unit that controls the electrical components (hereinafter referred to as “electronic control unit” or abbreviated as “ECU”) dispersedly mounted on each part. Yes. In each ECU, an electric circuit board (in other words, an ECU board) on which the ECU is mounted is individually housed in a housing case, and is appropriately distributed in each part of the vehicle. In recent years, the number of ECUs has also increased with the increase in added value of vehicles such as automobiles, so that the installation space of the ECU has increased, the wire harness connecting each electrical component and the ECU, and the connector for connecting these The number has increased significantly. For this reason, the connector fitting and the wiring harness wiring are complicated, and the wiring space is also increased. As described above, the space required for installing the ECU continues to increase with the increasing value added of vehicles such as automobiles.

  On the other hand, there is a strong demand to widen the vehicle interior space so that a comfortable vehicle interior space can be provided, and there is a conflict between the securing of the vehicle interior space and the installation space for the ECU and the wiring harness securing space. There is an urgent need to resolve it.

  Conventionally, in order to reduce the installation space for an electric circuit board, electric circuit boards have been arranged side by side so as to be stacked. A printed circuit board connection structure is known in which a plurality of electric circuit boards arranged in such a stacked state are connected (see, for example, Patent Document 1). In this printed circuit board connection structure, through holes are formed at positions corresponding to each other when the printed circuit boards are stacked, and pin contacts are inserted into the through holes and soldered to connect a plurality of printed circuit boards. It has become.

  Further, there is known an ECU central storage box that is accommodated in an ECU case so that a plurality of ECU boards are stacked to reduce the installation space of the ECU (see, for example, Patent Document 2). The ECU central storage box stores a plurality of ECU boards in a stacked state in an ECU case, and connects a bus bar to a conductor end formed at one end of each ECU board. A battery circuit, an accessory circuit, an ignition circuit, and a ground circuit are configured, and common circuits of a plurality of ECU boards are connected together. These common circuits are further routed together by a junction box provided in the upper part of the ECU case. Moreover, the direct attachment connector connected to the connector of a wire harness is being fixed to the other end of each ECU board | substrate, and this is wired by the electrical component of each part.

By the way, as a method of manufacturing a wiring board assembly (bus bar), a plate-like member is formed by punching into a shape in which bus bars are connected by connecting pieces, then the connecting pieces are cut, and the divided connecting pieces are bent. A method of forming a pawl is known (see, for example, Patent Document 3).
JP-A-9-270575 (page 3-4, FIG. 1) JP 2003-304083 A (page 5-6, FIG. 1) JP-A-7-79519 (2nd page, FIG. 1)

  According to the printed circuit board connection structure disclosed in Patent Document 1, when connecting printed circuit boards, one pin contact is inserted into each through hole of a plurality of printed circuit boards and soldered. There was a problem that the printed circuit boards could not be connected in a lump, the assembly performance was inferior, and a large number of man-hours were required for connecting the printed circuit boards. Further, the number of through holes increases as the number of connection points increases. Therefore, in order to be able to insert pin contacts through a large number of through holes provided in a plurality of printed circuit boards without difficulty, it is indispensable to process the position accuracy of each through hole with high accuracy. It is an up factor.

  On the other hand, according to the ECU centralized storage box disclosed in Patent Document 2, a plurality of ECU boards are stored in a concentrated manner in the case, and the ECU boards are connected by bus bars to form a common circuit. Yes. Therefore, there is an effect that the installation space and the number of connection connectors for connecting the ECU boards are reduced as compared with the case where the ECUs are dispersedly arranged and the ECU boards are connected by the wire harness. However, the wiring harnesses that are connected and wired to the electrical components that are dispersedly arranged must be connected to the respective ECU boards, and the wiring is complicated. In addition, as shown in FIG. 22, when a wiring harness of one routing system is connected to a plurality of ECU boards (the same control signal is used for a plurality of controls, such a connection is usually made). In spite of the same wiring system, there is a problem that a large number of connectors are required for connection to each ECU board. In addition, this makes the connector connection complicated and requires a lot of man-hours for connector connection, and there is a risk of erroneous connection (incorrect wiring). Also, the wire harness has a complicated shape that is branched into a plurality of connectors, and there is a problem that it is difficult to manufacture.

  Specifically, as shown in FIG. 22, for example, an instrument panel system wire harness 10 is connected to three ECU boards of a first ECU board 1, a second ECU board 2, and a third ECU board 3, and a floor system The wire harness 11 is connected to two ECU boards of the second ECU board 2 and the third ECU board 3, and the wire harness 12 of the engine main system is connected to three pieces of the second ECU board 2, the third ECU board 3 and the fourth ECU board 4. Connected to the ECU board. Therefore, the ECU boards 1, 2, 3, 4 and the wire harnesses 10, 11, 12 need to be provided with connectors, respectively, which not only increases the number of connectors but also makes it difficult to find and connect connectors to be fitted together. Connection work was required and there was room for improvement.

  Further, according to the method for manufacturing a wiring board assembly (bus bar) disclosed in Patent Document 3, the length of the connecting piece is increased in order to be able to form the locking claw by bending the divided connecting piece. In other words, it is necessary to widen the interval between the bus bars. Therefore, it is difficult to increase the arrangement density of the bus bars by narrowing the interval between the bus bars, and there is a possibility that unnecessary portions between the bus bars discarded at the time of press working are large, resulting in a waste of material. In addition, after the bus bar is cut and processed, a complicated process for bending is required, and the manufacturing cost is relatively high.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an electrical connection that can easily assemble an electrical connection member that can contribute to a significant reduction in the number of electrical connection work steps for an electrical circuit board. It is to provide a member assembling method.

In order to achieve the above-described object, an electrical connection member assembling method according to the present invention is characterized by the following (1) and (2).
(1) preparing a columnar body formed of an insulating material;
Preparing a conductive member integrated body integrally formed by pressing from a conductive metal plate material, and having a plurality of strip-shaped portions and a plurality of connecting portions;
An electrical connection member assembly method comprising:
The columnar body includes a plurality of grooves formed so as to extend in parallel with each other in the longitudinal direction thereof, and the plurality of belt-shaped portions are provided in parallel at intervals in the conductive member integrated body, and the plurality of belt-shaped bodies are provided. Both ends of the part are connected by the connecting part,
Fitting the plurality of strip-shaped portions of the conductive member integrated body into the plurality of groove portions of the columnar body, respectively,
Cutting the plurality of strip portions protruding from both ends of the columnar body together with the connecting portion by the fitting step;
It has further.
(2) In the electrical connecting member assembling method of (1), the step of preparing the conductive member integrated body includes a step of preparing a plurality of conductive member integrated bodies, and the step of fitting and the step of cutting out Repeatedly, and thereby the plurality of strip-like portions are fitted into all the plurality of groove portions of the columnar body.

According to the electrical connection member assembling method of the above (1), since the plurality of belt-like portions can be collectively fitted into the plurality of grooves of the columnar body, the electrical connection member can be easily assembled in a short time. In addition, according to the electrical connection member assembling method of (1) above, it is easy to increase the arrangement density of the band-shaped portions by narrowing the interval between the band-shaped portions in the conductive member integrated body, so that a large number of band-shaped portions can be compact. Can be arranged together. Therefore, the unnecessary portion between the strip-shaped portions discarded at the time of press working can be reduced, and the waste of the conductive metal plate material that is the material of the conductive member integrated body can be reduced. Therefore, the manufacturing cost can be kept low. According to the electrical connecting member assembling method of the above (1), even if the interval between the band-like parts is narrowed, the band-like parts can be arranged while being separated by the wall part between the groove parts of the columnar body. Is prevented from short circuiting.
According to the electrical connecting member assembling method of the above (2), a plurality of large and small conductive member integrated bodies necessary for fitting the belt-like portions into all the groove portions even in the groove portions formed in the columnar main bodies of various shapes. By repeating the step of preparing and fitting and the step of cutting off, the band-like portion can be reliably fitted.

  ADVANTAGE OF THE INVENTION According to this invention, the assembly of the electrical connection member which can contribute to the significant reduction of the electrical connection work man-hour of an electrical circuit board can be performed easily in a short time.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of the invention will be described in detail with reference to the drawings. A plurality of electric devices equipped with an electronic control unit (ECU) for controlling various electrical components mounted on a vehicle such as an automobile. An assembly method for an electrical connection member will be described while describing an embodiment of an electrical circuit board connection structure provided with an electrical connection member suitable for electrically connecting circuit boards.

(First embodiment)
1 is an exploded perspective view of a first embodiment of an electric circuit board connection structure, FIG. 2 is an exploded perspective view of a main part of the electric circuit board, FIG. 3 is an enlarged plan view of a portion surrounded by a circle III in FIG. FIG. 4 is an enlarged view of a portion surrounded by an ellipse IV in FIG. FIG. 5 is a schematic view showing a connection state between the electrical connection member and the electrical circuit board and the junction block, and FIG. 6 is a longitudinal sectional view showing a contact state between the conductive metal member of the electrical connection member and the electrical connection portion of the hollow connector. FIG. 7 is a cross-sectional view of an essential part showing a contact state between the conductive metal member of the electrical connection member and the electrical connection part of the hollow connector. FIG. 8 is a perspective view of the substrate storage box.

  9 to 12 show an assembly process of the electrical connection member according to the present invention, FIG. 9 is a perspective view showing a state where the conductive member integrated body is fixed to the columnar body, and FIG. 10 shows a conductive metal in the groove portion of the columnar body. FIG. 11 is a perspective view showing a state in which the conductive member integrated body is fitted in the groove portion of the columnar main body, and FIG. 12 is a diagram showing a state in which the connecting portion of the conductive member integrated body is cut and conductive. It is a perspective view which shows the state by which the conductive metal member was isolate | separated. 13 is a perspective view of an electrical connection member, a hollow connector, and an electric circuit board as a first modification, FIG. 14 is a perspective view of an electrical connection member, a hollow connector, and an electrical circuit board as a second modification, and FIG. It is a perspective view of the electric connection member which is a 3rd modification, a hollow connector, and an electric circuit board.

  The electric circuit board connection structure shown in FIGS. 1 to 7 includes a base board 25 having a plurality of electric circuit patterns 26, a through hole 25a penetrating the base board 25, and an electric circuit pattern mounted on the base board 25. 26, an electronic control unit (electronic control unit for on-vehicle electrical component control) 20 electrically connected to the frame 26, a frame-shaped housing 57 in which a polygonal insertion hole 57a having four sides is formed, and an insertion hole 57a are defined. A plurality of electrical connection portions 59 are provided so as to partially protrude from the inner peripheral surface of the frame-shaped housing 57 into the insertion hole 57a and are electrically connected to the electrical circuit pattern 26, respectively. And a hollow connector 55 fixed to the base board 25 so that the insertion holes 57a of the frame-shaped housing 57 are aligned. Including a plurality of 1.

  In addition, the electric circuit board connection structure shown in FIGS. 1 to 7 is formed of an electrically insulating material and has an outer peripheral surface composed of four planar outer surfaces 39a corresponding to the shape of the insertion hole 57a of the frame-shaped housing 57. It further includes an electrical connecting member 23 having a columnar main body 39 and a plurality of conductive metal members 41 arranged on the outer peripheral surface of the columnar main body 39 so as to extend in the longitudinal direction of the columnar main body 39.

  1 to 7 includes a base board (that is, a base) 33, a plurality of electric circuit patterns (conductive paths) 26 disposed on the base board 33, and a base board. A frame in which a polygonal insertion hole (insertion hole) 57a having four sides corresponding to the outline of the electrical connection member 23 formed by the insertion hole 33a formed in the electrical connection member 23 and the outer peripheral surface of the electrical connection member 23 is formed. An electric circuit pattern is disposed so as to partially protrude into the insertion hole 57a from the inner peripheral surface of the frame-shaped housing 57 that defines the shape housing 57 (frame-shaped housing portion) and the insertion hole 57a of the frame-shaped housing 57 26 and a plurality of electrical connection portions 59 electrically connected to the base plate 26, and the base board so that the insertion holes 57a of the frame-shaped housing 57 are aligned with the insertion holes 33a. Fixed to 3 (more specifically, formed separately) further comprising a junction block (electric circuit board) 31 having a hollow connector (junction block connector) 55 which is a.

  The junction block 31 is an electric circuit board having a structure similar to that of the electric circuit board 21 except for a base board 33 that is thicker than the base board 25 of the electric circuit board 21 and an insertion hole 33a that does not penetrate the base board 33. is there. Therefore, the position of the base board 33, the hollow connector 55, the electric circuit pattern 26, the insertion hole 33a, etc. of the junction block 31 will be understood with reference to FIG. The electronic control unit 20 may not be provided in the junction block 31. The junction block 31 has a function of centrally connecting electrical circuits, and performs, for example, power distribution and supply and transmission / reception of electrical signals to the electrical circuit board 21. A plurality of conductive paths (for example, bus bars) are disposed in place of the electric circuit pattern 26 in a box-shaped base formed of an electrically insulating material such as a plurality of electric lines electrically connected to the conductive paths. The frame-shaped housing 57 of the hollow connector 55 provided with the connecting portion 59 may be formed integrally or separately with the box-shaped base. When the frame-shaped housing 57 of the hollow connector 55 is formed integrally with the box-shaped base, the hollow connector 55 having a bottomed cylindrical housing having the frame-shaped housing portion and the insertion hole 33a therein may be used. Good.

  As shown in FIGS. 1 and 5, the plurality of electric circuit boards 21 are stacked while the insertion holes 57a of the frame-shaped housing 57 of the hollow connector 55 of the plurality of electric circuit boards 21 and the junction block 31 are aligned. The base boards 25 are arranged at intervals, and the base boards 25 arranged in this way are located on the downstream end side in the insertion direction of the electrical connecting member 23 (that is, the front end side in the insertion direction). Base boards 33 are arranged at intervals so that the junction block 31 faces the board 25. The electrical connecting member 23 is inserted in the longitudinal direction through the through holes 25a of the plurality of electric circuit boards 21 and the insertion holes 57a of the hollow connector 55, and is inserted into the insertion holes 57a of the hollow connector 55 of the junction block 31. The conductive metal member 41 of the electrical connection member 23 contacts the electrical connection portion 59 of the hollow connector 55 at once, and is electrically connected to the plurality of electrical circuit boards 21 and the junction blocks 31.

  Details of the first embodiment of the electric circuit board connection structure configured as described above will be described below.

  The electronic control unit 20 electrically connected to the electric circuit pattern 26 formed on the base board 25 of each electric circuit board 21 outputs a control signal based on a signal input via the electric connecting member 23, for example. It produces | generates and it outputs via the electrical connection member 23, and, thereby, each electrical component electrically connected to the junction block 31 by the wire harness is controlled. The functions of the vehicle to be controlled by the electronic control unit 20 include, for example, a headlight adjustment function that adjusts the direction of the headlight according to the tilt of the vehicle body and the steering wheel operation, an auto wiper function that controls the automatic detection wiper, and an obstacle. Examples include a sonar function for controlling object detection. The plurality of electric circuit boards 21 includes four (four layers) electric circuit boards 21A, 21B, 21C, and 21D having different functions.

  As shown in FIG. 2, the base board 25 of each electric circuit board 21 is formed with a through-hole 25 a having a square shape (that is, polygonal shape) penetrating in the thickness direction at the same location. The size of the through hole 25a is slightly larger than the size of the cross-sectional contour of the electrical connection member 23 in the direction orthogonal to the longitudinal direction of the electrical connection member 23, and the electrical connection member 23 can be inserted into the through hole 25a. It is. As shown in FIG. 3, the electric circuit pattern 26 formed on the base board 25 is a predetermined distance L from an edge (through hole forming surface) 25b of the base board 25 that defines the through hole 25a. The through hole 26a is arranged so as to be separated and surround the edge 25b.

  The frame-shaped housing 57 of the hollow connector 55 fixed to the base board 25 of each electric circuit board 21 has a quadrilateral (that is, polygonal) insertion hole 57a penetrating in the vertical direction, and is an electrically insulating material such as a synthetic resin. Is formed into a hollow square (ie, polygonal) frame shape. The electrical connection portion 59 is a metal terminal in which a conductive metal having elasticity such as copper is formed in a wire shape or a plate shape, and is integrally formed and held in the frame-shaped housing 57 by insert molding. A part of the electrical connection portion 59 is formed in a substantially arc shape, and forms an electrical contact portion 59a that protrudes from the frame-shaped housing 57 into the insertion hole 57a. Further, one end 59b of the electrical connection portion 59 led out from the frame-shaped housing 57 is bent at a right angle downward. The hollow connector 55 formed in this way is fixed on the base board 25 by inserting and soldering one end 59b of the electrical connection portion 59 to the through hole 26a. The insertion hole 57a is aligned with the through hole 25a.

  The base board 33 of the junction block 31 is formed with a rectangular (that is, polygonal) insertion hole 33a in the thickness direction in the same manner as the through hole 25a of the electric circuit board 21 shown in FIG. The hole 33a is not necessarily a so-called bottomed hole (in other words, it may be formed as a through hole). However, it is a so-called bottomed hole like the insertion hole 33a, and is positioned when the front end surface in the insertion direction (longitudinal direction) of the electrical connection member 23 inserted into the insertion hole 33a contacts the junction block 31. And preferred. The size of the opening of the insertion hole 33a is slightly larger than the size of the cross-sectional contour of the electrical connection member 23 in the direction orthogonal to the longitudinal direction of the electrical connection member 23, and the electrical connection member 23 is inserted into the insertion hole 33a. Can be inserted. Further, the bottom surface of the base board 33 that forms the bottom of the insertion hole 33a is formed so as to come into contact with the inclined surface 39e and the front end surface that form a tapered front end portion in the insertion direction of the electrical connecting member 23. Similarly to the electric circuit pattern 26 of the electric circuit board 21 shown in FIG. 3, the electric circuit pattern 26 formed on the base board 33 is an edge of the base board 33 that defines the opening of the insertion hole 33a. A through hole 26a is provided so as to be separated from the (insertion hole forming surface) by a predetermined distance L and to surround the edge. The hollow connector 55 of the junction block 31 is the same as the hollow connector 55 of the electric circuit board 21 and is fixed to the base board 33 of the junction block 31 like the hollow connector 55 of the electric circuit board 21.

  The columnar body 39 of the electrical connection member 23 has a substantially rectangular column shape, and is substantially the same in any cross section in the direction orthogonal to the longitudinal direction of the electrical connection member 23 except for the portion where the inclined surface 39e at the front end is formed. is there. The inclined surface 39e of the columnar main body 39 facilitates insertion when inserted into the hollow connector 55. A plurality of U-shaped groove portions 39b are formed on the outer peripheral surface of the columnar body 39 of the electrical connecting member 23 so as to extend in the longitudinal direction of the columnar body 39 along the entire circumference of the columnar body 39. A plurality of conductive metal members 41 are fitted into the U-shaped groove 39b. More specifically, each of the planar outer surfaces 39a of the columnar body 39 has five U-shaped groove portions 39b formed in the longitudinal direction, and the bottom surface of each of the U-shaped groove portions 39b has the electric connection member 23 formed on the bottom surface thereof. A plurality of V-shaped recesses 39c arranged at predetermined intervals in the longitudinal direction are formed. A plurality of locking projections 39d (see FIG. 9 and FIG. 10, etc.) arranged at predetermined intervals in the longitudinal direction of the electrical connection member 23 are formed on the opposing side surfaces of each U-shaped groove 39b. Each conductive metal member 41 is a long and thin strip-shaped metal piece formed of a conductive material such as a copper plate and is locked to the V-shaped recess 39c by a plurality of locking projections 39d. Each conductive metal member 41 is formed with a plurality of convex bent portions 41a that engage with the V-shaped concave portions 39c of the U-shaped groove portions 39b at the same intervals as the arrangement intervals of the V-shaped concave portions 39c. Accordingly, each conductive metal member 41 is positioned in the U-shaped groove 39b by the plurality of locking projections 39d and the plurality of V-shaped recesses 39c. As shown in FIGS. 5 and 6, the convex bent portion 41 a engages with the electrical contact portion 59 a of the electrical connection portion 59 of the hollow connector 55.

  As shown in FIG. 6, the electric contact portion 59a formed in a curved arc shape of the electric connection portion 59 of the hollow connector 55 is inserted into the insertion hole from the inner peripheral surface of the frame-shaped housing 57 that defines the insertion hole 57a. It arrange | positions so that it may protrude in 57a, and elastically contacts to the convex bending part 41a of the electroconductive metal member 41 of the electrical connection member 23 inserted in the insertion hole 57a. The elastic force of one electrical contact portion 59a is not so strong, but each hollow connector 55 has 20 electrical contact portions 59a, and the total of these elastic forces becomes strong. Therefore, even when the electric connection member 23 is inserted into the insertion hole 57a and the arc-shaped electric contact portion 59a and the convex bent portion 41a of the hollow connector 55 are slightly displaced in the insertion direction, the elastic force (in other words, For example, since the electrical contact portion 59a is guided to the inclined surface of the convex bent portion 41a by the elastic restoring force), the electric contact portion 59a is automatically predetermined so as to contact the two inclined surfaces of the convex bent portion 41a. It is arranged at the position.

  FIG. 6 shows a modified example of the frame-shaped housing 57 of the through hole 25a (insertion hole 33a) and the hollow connector 55. Specifically, the extended portion of the frame-shaped housing 57 of the hollow connector 55 is fitted in the through hole 25a so that the insertion hole 57a is disposed in the through hole 25a. It is much larger than the size of the cross-sectional contour of the electrical connection member 23 in the direction orthogonal to the longitudinal direction of the connection member 23. Such a modified example of the through hole 25a (insertion hole 33a) and the frame-shaped housing 57 is preferable because the frame-shaped housing 57 can be easily positioned and fixed with respect to the through hole 25a (insertion hole 33a).

  Now, as shown in FIG. 7, the width α of the electrical contact portion 59a is narrower than the width β of the conductive metal member 41 and the U-shaped groove 39b, and the electrical contact portion 59a enters the U-shaped groove 39b. Even if the electrical contact portion 59a contacts with the conductive metal member 41 and the lateral displacement (left-right direction in FIG. 7) of the electrical contact portion 59a is generated, the electrical contact portion 59a is blocked by the opposing side surfaces of the U-shaped groove portion 39b. Are securely connected only to the corresponding predetermined conductive metal member 41.

  Each of the plurality of conductive metal members 41 of the electrical connection member 23 is connected to the electrical connection portions 59 of all the hollow connectors 55 and is electrically connected to the electrical circuit board 21 and the junction block 31, but on the electrical circuit board 21. By appropriately designing the electric circuit pattern 26 provided on the provided electric circuit pattern 26 or the junction block 31, the electric parts such as the electronic control unit 20 of the electric circuit board 21, the electric parts of the junction block 31, or the junction block The electrical component that is electrically connected to 31 can be made non-conductive.

  For example, in FIG. 5, the electronic control unit 20 of the first electric circuit board 21 </ b> A includes the first conductive metal member 41-1 and the third conductive metal member 41-as indicated by black circles for conduction and white circles for non-conduction. 3 and the fifth conductive metal member 41-5, the electronic control unit 20 of the second electric circuit board 21B includes the first conductive metal member 41-1, the second conductive metal member 41-2, The electronic control unit 20 of the third electric circuit board 21C is electrically connected to the third conductive metal member 41-3 and the fourth conductive metal member 41-4. The electronic control unit 20 of the fourth electric circuit board 21D is electrically connected to the metal member 41-2, and the first conductive metal member 41-1, the second conductive metal member 41-2, and the fourth conductive metal member 41. -4, and Jean The electrical components of the connection block 31 or the electrical components that are electrically connected to the junction block 31 are the first conductive metal member 41-1, the second conductive metal member 41-2, the third conductive metal member 41-3, Moreover, it conducts to the fifth conductive metal member 41-5. Further, for example, one planar outer surface 39a of the columnar body 39 of the electrical connection member 23 may be configured to correspond to the single electrical circuit board 21 on a one-to-one basis. In this way, there is an advantage that the conduction location is easy to understand.

  While the insertion holes 57a of the frame-shaped housing 57 of the plurality of electric circuit boards 21 and the hollow connector 55 of the junction block 31 are aligned, the base boards 25 are spaced apart so that the plurality of electric circuit boards 21 are stacked. The base board 33 is arranged so that the junction block 31 faces the base board 25 located on the downstream end side in the insertion direction of the electrical connection member 23 (that is, the front end side in the insertion direction) of the base boards 25 arranged in this manner. The means for arranging the objects at intervals is optional, but it is preferable to use, for example, a substrate storage box 43 shown in FIG.

  That is, as shown in FIG. 8, the substrate storage box 43 is a bottomed rectangular box whose one surface (the front surface in FIG. 8) is open, and the five protrusions 43c provided with the grooves 43b are opposed to each other. In this way, it is formed on each inner surface of both side walls 43a. The plurality of electric circuit boards 21 and the junction block 31 are inserted into the board housing box 43 until they come into contact with the rear wall 43d while being guided by the five pairs of grooves 43b arranged to face each other. Thereby, the plurality of electric circuit boards 21 and the junction blocks 31 are aligned. The junction block 31 is inserted into the pair of lowermost grooves 43b. Then, the direction in which the electrical connection member 23 intersects the surface of the base board 25 on which the electrical circuit pattern 26 is formed from the hole 43f provided in the upper wall 43e of the substrate housing box 43 shown by a broken line in FIG. Are inserted into the insertion holes 57a of the plurality of hollow connectors 55 in a direction perpendicular to the surface. Needless to say, the upper wall 43e of the substrate housing box 43 may be a lid that can be opened and closed instead of providing the hole 43f. Further, instead of aligning using the substrate storage box 43, a plurality of electric circuit boards 21 and junction blocks 31 may be aligned using a jig or the like. In this case, the electrical connection member 23 is connected to the hollow connector 55. Thereafter, the assembly of the plurality of electric circuit boards 21, the junction blocks 31, and the electrical connection members 23 may be accommodated in the board accommodation box 43.

  Next, a method for assembling the electrical connection member 23 will be described with reference to FIGS.

  As shown in FIG. 9, first, a columnar body 39 having a substantially quadrangular cross-sectional outline formed by injection molding an electrically insulating material such as a synthetic resin, and a conductive metal plate such as a copper plate are stamped (punched) In addition, a plurality of conductive member integrated bodies 45 formed by doing so are prepared. In the conductive member integrated body 45, a plurality of portions of the band-shaped conductive metal member 41 (hereinafter also referred to as “band-shaped portion 41”) are arranged in parallel, and both ends thereof are connected and integrated by a connecting portion 45a. It is a thing. Each belt-like portion 41 is provided with V-shaped convex bent portions 41a at predetermined intervals in the longitudinal direction. The convex bent portion 41a can be press-molded simultaneously with the punching process of punching the conductive member integrated body 45 from the conductive metal plate material, and the conductive member integrated body 45 is manufactured by one press processing.

  Then, after the positioning of the convex bent portion 41a of each band-shaped portion 41 of the conductive member integrated body 45 and the V-shaped concave portion 39c of the columnar body 39, the band-shaped portions 41 are collectively put into the U-shaped groove portions 39b. Press fit. Specifically, as shown in FIG. 10 (a), when the belt-like portion 41 is fitted in the U-shaped groove 39b in the direction of arrow A, the locking projection 39d as shown in FIG. 10 (b). Is in contact with the belt-like portion 41, but the engaging protrusion 39d made of synthetic resin has flexibility, so that the belt-like portion 41 is allowed to enter the U-shaped groove 39b while being elastically deformed (that is, while being bent). . Then, as shown in FIG. 10 (c), when the belt-like portion 41 is fitted (press-fitted) into the U-shaped groove 39b, the shape of the locking projection 39d is restored, so that the U-shaped groove 39b The strip portion 41 is prevented from falling off.

  After the conductive member integrated body 45 is press-fitted into the U-shaped groove 39b of the one-side outer surface 39a of the columnar body 39 in this way, as shown in FIG. 11, a band-like portion 41 (in other words, protruding from the U-shaped groove 39b) Then, by cutting the strip portions 41) protruding from both ends of the columnar body 39, the strip portions 41 are separated into five, and the necessary strip portions 41 (that is, the conductive metal member 41) are U-shaped. It remains in the groove 39b. By repeating the same operation for each of the remaining planar outer surfaces 39a of the columnar body 39, the columnar body 39 and the conductive metal member 41 disposed on the columnar body 39 as shown in FIG. The electrical connection member 23 provided with is completed. As described above, when the electrical connection member 23 is assembled, the plurality of conductive metal members 41 are collectively press-fitted into the plurality of U-shaped grooves 39 b on the one-plane outer surface 39 a of the columnar body 39. Therefore, the assembly of the plurality of conductive metal members 41 to the columnar main body 39 can be easily performed in a short time.

  Here, in order to deepen the understanding of the present invention, the electrical connecting member assembling method according to the present invention will be briefly described.

An electrical connection member assembling method according to the present invention is as follows.
Preparing a columnar body 39 formed of an insulating material;
Preparing a conductive member integrated body 45 having a plurality of strip-like portions 41 and a plurality of connecting portions 45a, which are integrally formed from a conductive metal plate material by pressing;
An electrical connection member assembly method comprising:
The columnar body 39 includes a plurality of grooves 39b formed to extend in parallel with each other in the longitudinal direction, and a plurality of strip portions 41 are provided in parallel in the conductive member integrated body 45 at intervals, and a plurality of strip shapes. Both ends of the portion 41 are connected by connecting portions 45a,
Fitting the plurality of belt-like portions 41 of the conductive member integrated body 45 into the plurality of groove portions 39b of the columnar body 39, respectively,
Cutting the plurality of strip portions 41 protruding from both ends of the columnar body 39 together with the connecting portion 45a by the fitting step;
It has further.

  In the electrical connection member assembling method according to the present invention, when the step of preparing the conductive member integrated body 45 described above includes the step of preparing a plurality of conductive member integrated bodies 45, the above-described fitting step and cutting step. Are repeated, whereby the plurality of strip portions 41 are fitted into all the plurality of groove portions 39b of the columnar body 39. Further, although depending on the shape of the columnar main body 39, one conductive member integrated body 45 including a number of strip-like portions 41 necessary to fit in all the plurality of grooves 39 b of the columnar main body 39 is prepared, and the conductive member The band-like portions 41 of the integrated body 45 may be fitted together in all the groove portions 39b of the columnar main body 39, and the plurality of band-like portions 41 protruding from both ends of the columnar main body 39 may be cut out together with the connecting portions 45a.

(First modification)
Next, a first modification of the above-described electrical connection member 23, hollow connector 55, and through hole 25a (insertion hole 33a) will be described with reference to FIG. In addition, about the component similar to 1st Embodiment mentioned above in this 1st modification, the same code | symbol or an equivalent code | symbol is attached | subjected, and description is simplified or abbreviate | omitted. As shown in FIG. 13, the electrical connection member 43 includes a columnar body 45 and a conductive metal member 41. The columnar body 45 has a substantially semi-cylindrical shape, and is formed such that a plurality of U-shaped grooves 45b extend in the longitudinal direction on an outer peripheral surface 45a composed of a combination of an arcuate outer surface and a planar outer surface. Yes. A plurality of the above-described V-shaped recesses 39c (see FIG. 9 and the like) arranged at a predetermined interval in the longitudinal direction of the electrical connection member 43 are formed on the bottom surface of each U-shaped groove 45b. Each of the opposing side surfaces of each U-shaped groove 45b is formed with the above-described plurality of locking projections 39d (see FIG. 9 and the like) arranged at a predetermined interval in the longitudinal direction of the electrical connecting member 43. The conductive metal member 41 is disposed in each of the U-shaped grooves 45b by the above-described electrical connecting member assembly method of the present invention.

  The hollow connector 47 includes a frame-shaped housing 49 in which a substantially semicircular insertion hole 49 a corresponding to a substantially semicircular outline of the electrical connection member 43 formed by the outer peripheral surface of the electrical connection member 43 is formed. The frame-shaped housing 49 defining the insertion hole 49a is disposed so as to partially protrude from the inner peripheral surface including the arcuate surface into the insertion hole 49a and electrically connected to the electric circuit pattern 26 (see FIG. 2). A plurality of electrical connection portions 59 are provided, and the insertion hole 49a of the frame-shaped housing 49 is fixed to the base board 25Z so as to be aligned with the semicircular through hole 25Za of the electric circuit board 21Z. As can be easily inferred from this first modification, the junction block 31 is also provided with a modification similar to the electric circuit board 21Z.

(Second modification)
Next, a second modification of the above-described electrical connection member 23, hollow connector 55, and through hole 25a (insertion hole 33a) will be described with reference to FIG. In addition, about the component similar to 1st Embodiment mentioned above in this 2nd modification, the same code | symbol or an equivalent code | symbol is attached | subjected, and description is simplified or abbreviate | omitted. As shown in FIG. 14, the electrical connection member 63 includes a columnar body 65 and a conductive metal member 41. The columnar body 65 has a substantially cylindrical shape, and is formed such that a plurality of U-shaped grooves 65b extend in the longitudinal direction on a circular outer peripheral surface 65a including an arcuate outer surface thereof. A plurality of the above-described V-shaped recesses 39c (see FIG. 9 and the like) are formed on the bottom surface of each U-shaped groove portion 65b. Each of the opposing side surfaces of each U-shaped groove portion 65b is formed with the above-described plurality of locking projections 39d (see FIG. 9 and the like) arranged at a predetermined interval in the longitudinal direction of the electrical connection member 63. The conductive metal member 41 is disposed in each of the U-shaped grooves 65b by the above-described electrical connection member assembling method of the present invention.

  The hollow connector 67 includes a frame-shaped housing 69 in which a substantially regular circular insertion hole 69 a corresponding to a substantially regular circular contour of the electrical connection member 63 formed by the outer peripheral surface of the electrical connection member 63 is formed. The frame-shaped housing 69 that defines the insertion hole 69a is disposed so as to partially protrude into the insertion hole 69a from the circular inner peripheral surface including the arc-shaped surface of the frame-shaped housing 69, and each of the electric circuit patterns 26 (see FIG. 2). A plurality of electrically connected portions 59 are electrically connected, and are fixed to the base board 25Y so that the insertion holes 69a of the frame-shaped housing 69 are aligned with the regular circular through holes 25Ya of the electric circuit board 21Y. The As can be easily inferred from this second modification, the junction block 31 is also provided with a modification similar to the electric circuit board 21Y. The outer peripheral surface 65a of the electrical connecting member 63 (columnar body 65) is provided with two convex portions 65c extending in the longitudinal direction, and two concave portions (not shown) respectively engaged with the convex portions 65c are hollow connectors. 67 is extended along the insertion direction of the electrical connection member 63 (columnar body 65) on the inner peripheral surface of the frame-shaped housing 69, so that the circumferential position of the electrical connection member 63 with respect to the insertion hole 69a of the hollow connector 67 Thus, the erroneous insertion of the electrical connecting member 63 into the insertion hole 69a can be prevented. However, the formation of the convex portions 65c and the concave portions (not shown) is arbitrary and may not be formed. Further, instead of the convex portion 65 c, a concave portion is formed on the outer peripheral surface 65 a of the electrical connection member 63 (columnar main body 65), and the convex portion engaging with the concave portion is formed on the inner peripheral surface of the frame-shaped housing 69 of the hollow connector 67. It may be formed.

(Third Modification)
Next, a third modification of the above-described electrical connection member 23, hollow connector 55, and through hole 25a (insertion hole 33a) will be described with reference to FIG. In addition, about the component similar to 1st Embodiment mentioned above in this 3rd modification, the same code | symbol or an equivalent code | symbol is attached | subjected, and description is simplified or abbreviate | omitted. As shown in FIG. 15, the electrical connection member 73 includes a columnar body 75 and a conductive metal member 41. The columnar body 75 has a substantially triangular prism shape, and is formed such that a plurality of U-shaped grooves 75b extend in the longitudinal direction on the outer peripheral surface formed by three planar outer surfaces 75a. A plurality of the above-described V-shaped recesses 39c (see FIG. 9 and the like) arranged at predetermined intervals in the longitudinal direction of the electrical connection member 73 are formed on the bottom surface of each U-shaped groove 75b. Each of the opposing side surfaces of each U-shaped groove 75b is formed with the above-described plurality of locking projections 39d (see FIG. 9 and the like) arranged at a predetermined interval in the longitudinal direction of the electrical connection member 73. The conductive metal member 41 is disposed in each of the U-shaped grooves 75b by the above-described electrical connecting member assembling method of the present invention.

  The hollow connector 77 includes a frame-shaped housing 79 in which a substantially triangular insertion hole 79 a corresponding to a substantially triangular outline of the electrical connection member 73 formed by the outer peripheral surface of the electrical connection member 73 is formed, and the insertion hole of the frame-shaped housing 79. A plurality of electrical connections arranged so as to partially protrude from the inner peripheral surface of the frame-shaped housing 79 defining 79a into the insertion hole 79a and electrically connected to the electrical circuit pattern 26 (see FIG. 2). It is fixed to the base board 25Z so that the insertion hole 79a of the frame-shaped housing 79 is aligned with the triangular through hole 25Za of the electric circuit board 21Z. As can be easily inferred from the third modification, the junction block 31 is also provided with a modification similar to the electric circuit board 21Z.

  Although the first embodiment of the electric circuit board connection structure has been described, the electric circuit board does not have to be plural, and even one electric circuit board can be easily electrically connected to the junction block by the electric connection member. Is preferred.

(Second Embodiment)
Next, a second embodiment of the electric circuit board connection structure will be described. 16 is an exploded perspective view of the second embodiment of the electric circuit board connection structure, FIG. 17 is an enlarged view of a portion surrounded by an ellipse XVII in FIG. 16, FIG. 18 is an exploded perspective view of the junction block side connector, and FIG. FIG. 20 is an exploded side view showing the electric circuit board connecting structure, and FIG. 21 is a longitudinal section showing the contact state between the conductive metal member of the electric connecting member and the electric connecting portion of the hollow connector. FIG. In addition, about the component similar to 1st Embodiment mentioned above in this 2nd Embodiment, the same code | symbol or an equivalent code | symbol is attached | subjected, and description is simplified or abbreviate | omitted.

  The electric circuit board connection structure shown in FIGS. 16 to 18 includes a base board 25 having the above-described plurality of electric circuit patterns 26 (see FIG. 2) and the above-described through holes 25a (FIG. 2) penetrating the base board 25. ), The above-described electronic control unit 20 (see FIG. 2) mounted on the base board 25 and electrically connected to the electric circuit pattern 26, a frame-shaped housing 57 in which a rectangular insertion hole 57a is formed, and A plurality of electrical connection portions 59 disposed so as to partially protrude from the inner peripheral surface of the frame-shaped housing 57 defining the insertion hole 57a into the insertion hole 57a and electrically connected to the electric circuit pattern 26, respectively. And a hollow connector 55 fixed to the base board 25 so that the insertion hole 57a of the frame-shaped housing 57 is aligned with the through hole 25a. An electric circuit board 21 a plurality of (i.e., an electric circuit board 21A, 21B, 21C, and 21D) comprises.

  Further, the electric circuit board connection structure shown in FIGS. 16 to 18 is formed of an electrically insulating material and has an outer peripheral surface composed of four planar outer surfaces 95a corresponding to the shape of the insertion hole 57a of the frame-shaped housing 57. It further includes an electrical connection member 83 having a columnar body 95 having a plurality of conductive metal members 41 arranged on the outer peripheral surface of the columnar body 95 so as to extend in the longitudinal direction of the columnar body 95. The columnar body 95 of the electrical connection member 83 has a hollow, substantially square cylindrical shape, and the columnar body 95 is formed with a rectangular through hole 95c penetrating in the longitudinal direction, thereby defining the through hole 95c. A plurality of conductive metal members 41 are arranged on the inner peripheral surface of the columnar body 95 so as to extend in the longitudinal direction of the electrical connection member 83. A plurality of U-shaped groove portions 95 b are formed on the outer peripheral surface and inner peripheral surface of the columnar main body 95 of the electrical connecting member 83 so as to extend in the longitudinal direction of the columnar main body 95, and the entire circumference of the columnar main body 95 and the columnar main body 95. A plurality of conductive metal members 41 are fitted into the plurality of U-shaped grooves 95b by the above-described electrical connection member assembling method of the present invention. The plurality of V-shaped concave portions 39c (see FIG. 9 and the like) described above are formed on the bottom surface of each U-shaped groove portion 95b at predetermined intervals in the longitudinal direction of the electrical connection member 83. Each of the opposing side surfaces of each U-shaped groove 95b is formed with the above-described plurality of locking projections 39d (see FIG. 9 and the like) arranged in the longitudinal direction of the electrical connection member 83 at a predetermined interval.

  Also, the electric circuit board connection structure shown in FIGS. 16 to 18 includes a base board (that is, a base) 33X and the plurality of electric circuit patterns (conductive paths) 26 (see FIG. 2) and a junction block side connector 85. The junction block (electric circuit board) 81 is further provided. The junction block side connector 85 is a frame-shaped housing (frame-shaped housing portion) in which a rectangular insertion hole (insertion hole) 57a is formed corresponding to the contour of the electric connection member 83 formed by the outer peripheral surface of the electric connection member 83. 57 and the insertion hole 57a of the frame-shaped housing 57 are arranged so as to partially protrude into the insertion hole 57a from the inner peripheral surface of the frame-shaped housing 57 and are electrically connected to the electric circuit pattern 26, respectively. A rectangular through-hole formed by a hollow connector 55 having a plurality of electrical connection portions 59 and fixed to the base board 33X (more specifically, separately) and an inner peripheral surface of the electrical connection member 83 An inner housing (inner housing portion) having a quadrangular prism shape corresponding to 95c and disposed in the insertion hole 57a of the frame-shaped housing 57 1 and a plurality of electric elements arranged so as to partially protrude from the outer peripheral surface of the inner housing 91 facing the inner peripheral surface of the frame-shaped housing 57 into the insertion hole 57a and electrically connected to the electric circuit pattern 26, respectively. And an inner connector 89 which is provided with a connection portion 59A and is fixed (more specifically, formed separately) to the base board 33X. That is, the junction block 81 in the present embodiment is the first embodiment in that it further includes an inner connector 89 and an electric circuit pattern 26 to which the inner connector 89 is electrically connected and fixed, and does not include the insertion hole 33a. It differs from the junction block 31 in the form. The hollow connector 55 and the inner connector 89 are formed separately in this embodiment, but may be formed integrally. The electrical connection portion 59A of the inner connector 89 is a metal terminal in which a conductive metal having elasticity such as copper is formed in a wire shape or a plate shape, and is integrally formed and held in the inner housing 91 by insert molding. . A part of the electrical connection portion 59A is formed in a substantially arc shape, and forms an electrical contact portion 59Aa protruding from the inner housing 91 into the insertion hole 57a. Further, one end 59Ab of the electrical connecting portion 59A is led out from the inner housing 91 to the outside. The inner connector 89 formed in this way is fixed on the base board 25 by inserting and soldering one end 59Ab of the electrical connection portion 59A to the through hole 26a (see FIG. 2).

  Also, the electric circuit board connection structure shown in FIGS. 16 to 18 includes a base board 25 having the above-described plurality of electric circuit patterns 26 (see FIG. 2), and the electric circuit pattern 26 mounted on the base board 25. An electric circuit board 21E having the above-described electronic control unit 20 (see FIG. 2) that is electrically connected and the connector 85 that is the same as the above-described junction block connector 85 is further provided.

  As shown in FIG. 16 and FIG. 20, the plurality of electric circuit boards 21A, 21B, 21C, 21D and the insertion holes 57a of the frame-shaped housing 57 of the hollow connector 55 of the junction block 81 are aligned, respectively. The base boards 25 are arranged at intervals so that the boards 21A, 21B, 21C, and 21D are stacked, and the base boards 25 arranged in this way are connected to the downstream end side in the insertion direction of the electrical connection member 83 ( That is, the base boards 33X are arranged at intervals so that the junction block 81 faces the base board 25 located on the front end side in the insertion direction). The electrical connection member 83 is inserted through the through holes 25a of the plurality of electric circuit boards 21A, 21B, 21C, and 21D and the insertion holes 57a of the hollow connector 55 in the longitudinal direction, and the insertion holes 57a of the hollow connector 55 of the junction block 81. The conductive metal member 41 on the outer peripheral surface of the columnar body 95 of the electrical connection member 83 is brought into contact with the electrical connection portion 59 of the hollow connector 55 in a lump, and a plurality of electrical circuit boards 21A, 21B, 21C are inserted. , 21D and the junction block 81 are electrically connected. When the electrical connection member 83 is inserted into the insertion hole 57 a of the hollow connector 55 of the junction block 81, the through hole 95 c of the columnar body 95 of the electrical connection member 83 is externally fitted to the inner housing 91 of the inner connector 89. The conductive metal member 41 on the inner peripheral surface of the columnar body 95 of the connection member 83 contacts the electrical connection portion 59A of the inner connector 89 and is electrically connected. In this state, when the connector 85 of the electric circuit board 21E and the junction block side connector 85 are fitted to the end of the electrical connection member 83 opposite to the end to which the junction block side connector 85 is fitted. Are fitted. Therefore, the electric circuit board 21E is also arranged so as to be laminated together with the plurality of electric circuit boards 21A, 21B, 21C, 21D and the junction block 81, but the conductive metal member on the inner peripheral surface of the columnar body 95 of the electric connection member 83. By 41, the electric circuit board 21E is directly electrically connected to the junction block 81 independently of the other electric circuit boards 21A, 21B, 21C, 21D. Of course, the electric circuit boards 21A, 21B, 21C, 21D, and 21E are electrically connected to the junction block 81 by the conductive metal member 41 on the outer peripheral surface of the columnar body 95 of the electric connection member 83. The contact state between the conductive metal member 41 on the outer peripheral surface of the columnar body 95 of the electrical connection member 83 and the electrical connection portion 59 of the hollow connector 55 is shown in FIG. 21, which is the same as that already described with reference to FIG. 6. Therefore, detailed description is omitted.

  The plurality of electric circuit boards 21A, 21B, 21C, and 21D and the plurality of electric circuit boards 21A, 21B, 21C, and 21D are stacked while the insertion holes 57a of the frame-shaped housing 57 of the hollow connector 55 of the junction block 81 are aligned. The base boards 25 are arranged at intervals so that the base boards 25 are arranged on the downstream end side in the insertion direction of the electrical connection member 83 (that is, the front end side in the insertion direction) of the base boards 25 arranged in this manner. The base boards 33X are arranged at intervals so that the junction blocks 81 face each other, and the base board 25 in which the plurality of electric circuit boards 21A, 21B, 21C, and 21D are arranged is upstream in the insertion direction of the electric connection member 83. The electric power is applied to the base board 25 located on the end side (that is, the end side in the insertion direction) Although the substrate 21E is means for arranging at intervals the baseboard 25 of the electric circuit board 21E to face is optional, it is preferably used a substrate housing box 101 shown in FIG. 19, for example as a unit.

  That is, the substrate storage box 101 has a storage box body 103 and a lid 105 as shown in FIG. The storage box body 103 is a rectangular box whose front and upper surfaces are open, and is formed so that six grooves 103b are opposed to the inner surfaces of both side walls 103a. The lid 105 is a shallow box whose front and lower surfaces are open. The plurality of electric circuit boards 21A, 21B, 21C, 21D and the junction block 81 are inserted into the containing box main body 103 until they abut against the rear wall 103d while being guided by the six pairs of grooves 103b arranged opposite to each other. Thereby, the plurality of electric circuit boards 21A, 21B, 21C, 21D and the junction block 81 are aligned. The junction block 81 is inserted into the pair of lowermost grooves 103b. Then, the electrical connection member 83 is inserted into the insertion holes 57a of the plurality of hollow connectors 55 in a direction intersecting the surface of the base board 25 where the electrical circuit pattern 26 is formed (more specifically, a direction orthogonal to the surface). The plurality of electric circuit boards 21A, 21B, 21C, 21D and the junction block 81 are electrically connected by the electric connecting member 83. In this state, when the connector 85 of the electric circuit board 21E and the junction block side connector 85 are fitted to the end of the electrical connection member 83 opposite to the end to which the junction block side connector 85 is fitted. In this case, the electric circuit board 21E is placed in the uppermost pair of grooves 103b. Thereafter, the lid body 105 is overlaid on the storage box body 103 to close the upper surface of the storage box body 103, and is fixed to the storage box body 103 by a fastening member (not shown) such as a screw.

  Although the second embodiment of the electric circuit board connection structure has been described, the electric circuit board does not have to be plural, and even one electric circuit board can be easily electrically connected to the junction block by the electric connection member. Is preferred. Needless to say, the second embodiment of the electric circuit board connection structure may be modified similarly to the first, second, and third modifications of the first embodiment described above.

  According to each embodiment of the electric circuit board connection structure, the electric connection member is inserted into the through hole of the plurality of electric circuit boards, the insertion hole of the hollow connector, and the insertion hole of the junction block side connector in a skewered shape in the longitudinal direction. By a simple operation, the conductive metal member of the electrical connection member contacts the electrical connection portion of the plurality of electrical circuit boards and the electrical connection portion of the junction block side connector at a time, and is electrically connected. The connection work of the electric circuit board and the junction block can be performed in a short time, and the wiring work man-hours are greatly reduced.

  Further, according to each embodiment of the electric circuit board connection structure, the number of parts (particularly the number of connectors) of each electric circuit board and the junction block can be greatly reduced, and the manufacturing cost can be reduced, and the connector can be misfitted. In other words, erroneous wiring can be reliably prevented, and highly reliable electrical connection can be performed.

  Further, according to each embodiment of the electric circuit board connection structure, since the base board and the base are arranged so that a plurality of electric circuit boards and junction blocks are stacked, more electric circuits can be provided in a narrow space. Substrates can be concentrated and space saving is achieved.

  Moreover, according to each embodiment of the electric circuit board connection structure, the electrical connection in which a polygonal insertion hole consisting of at least three sides of the frame-shaped housing portion of the junction block side connector is formed by the outer peripheral surface of the electric connection member. Corresponding to the contour of the electrical connection member formed so as to correspond to the contour of the member, or the insertion hole having the arc shape of the frame-shaped housing part of the junction block side connector formed by the outer peripheral surface of the electrical connection member Therefore, the electrical connection member is well guided by the inner peripheral surface of the frame-shaped housing portion of the junction block side connector.

  Further, according to each embodiment of the electric circuit board connection structure, the wiring between the plurality of electric circuit boards is arranged by the electric connection member that is electrically connected to the junction block. A complicated branch-shaped wire harness connecting the blocks becomes unnecessary.

  In any of the above-described electric circuit board connection structures, for example, the outline of the electric connection member (columnar body) formed by the outer peripheral surface of the electric connection member (columnar body), the shape of the insertion hole of the hollow connector, And the shape of the insertion hole of the junction block side connector corresponding to each other, or provided with at least one concave portion or convex portion extending in the longitudinal direction on the outer peripheral surface of the electrical connection member (columnar main body). Alternatively, the convex portion or the concave portion that engages with the convex portion is formed on the inner peripheral surface of the frame-shaped housing of the hollow connector and the inner peripheral surface of the frame-shaped housing portion of the junction block side connector along the insertion direction of the electrical connection member (columnar body). By extending, it is possible to prevent erroneous insertion into the insertion hole of the hollow connector of the electrical connection member and the insertion hole of the junction block side connector. That.

  The junction block has a function of centralized connection of electric circuits and performs, for example, power distribution and supply and transmission / reception of electric signals to the electric circuit board. A junction block side connector having a plurality of electrical connections (for example, bus bars) disposed in the formed box-shaped base and having a plurality of electrical connection portions electrically connected to the conductive paths is formed in the box-shaped base. The circuit board is not limited to a general junction block formed integrally or separately, and may be an electric circuit board. When the junction block is an electric circuit board, the base is a base board, and the conductive path is an electric circuit pattern.

  Further, according to each embodiment of the electric circuit board connection structure, the base is arranged with a gap from the base board so as to be laminated together with the plurality of electric circuit boards. The position may or may not be between electrical circuit boards. For example, the base boards are arranged at intervals so that a plurality of electric circuit boards are stacked, and the junction block faces the base board located at one end of the base boards arranged in this way. A form in which the bases are arranged at intervals may be adopted. In this case, the order in which the electrical connection members are inserted when inserting the electrical connection members in a skewered shape in the longitudinal direction is such that at least one of the plurality of electric circuit boards is ahead of the junction block, or the junction block May be ahead of all of the plurality of electric circuit boards, but when all of the plurality of electric circuit boards are arranged ahead of the junction block, in other words, a plurality of electric circuit boards are stacked. The base boards are arranged at intervals, and the base boards arranged in this way are located on the base board located on the downstream end side in the insertion direction of the electrical connection member (that is, the front end side in the insertion direction). When the bases are arranged at intervals so that the junction blocks face each other, the insertion direction of the electrical connection member (longitudinal Preferably the front end surface of the counter) is configured to be positioned by coming into contact with the junction block.

  Further, according to each embodiment of the electric circuit board connection structure, the electric connection member is inserted into the insertion hole of the hollow connector of one electric circuit board and the insertion hole of the junction block side connector by a simple operation. Since the conductive metal member of the electrical connection member is in contact with and electrically connected to the electrical connection part of the electrical circuit board and the electrical connection part of the junction block side connector, respectively, one electrical circuit board and the junction block The connecting work can be performed in a short time, and the man-hours for wiring are greatly reduced.

  In addition, when the insertion hole, the outline of the electrical connection member, and the shape of the insertion hole are polygons such as a triangle, a quadrangle, a pentagon, a hexagon, a star (star shape), etc. As the columnar body of the connecting member, for example, a polygonal columnar object such as a triangular column, a quadrangular column, a pentagonal column, a hexagonal column, a star column (star column), or the like may be adopted. Further, when the insertion hole, the outline of the electrical connection member, and the shape of the insertion hole have a circular arc shape such as a circular shape, a semicircular shape, a fan shape, a crescent shape, a rugby ball shape, a rice ball shape, etc. Corresponding to the above, the columnar main body of the electrical connecting member may be, for example, one having an arc shape such as a cylinder, a semi-cylinder, a fan column, a crescent column, a rugby ball column, a rice ball column, or the like. Among the above-mentioned, in particular, semicircular, fan-shaped, crescent-shaped, etc., are formed in a non-symmetrical form or provided with a recess or a convex part, and a hollow connector insertion hole and a junction block side connector of an electrical connection member This is preferable because it can prevent erroneous insertion into the insertion hole.

  Moreover, according to each embodiment of the said electric circuit board connection structure, since several electroconductive metal members can be arrange | positioned on the outer peripheral surface of the columnar main body of an electric connection member, an extremely large number of electroconductive metal members can be made compact. Can be arranged together.

  Further, according to each embodiment of the electric circuit board connection structure, the conductive metal members can be arranged while being separated even if the interval between the conductive metal members is narrowed. Is prevented.

  The hollow columnar body can be provided with more conductive metal members than the solid columnar body. Thereby, more electrical connection parts can be connected, and the connection in a further space-saving is attained. That is, since a plurality of conductive metal members can be arranged on the inner peripheral surface of the columnar body of the electrical connecting member, a very large number of conductive metal members can be arranged in a compact manner. In addition, for example, a combination of arbitrary shapes may be used as appropriate, such as providing a through hole having a circular cross section in the triangular prism main body, or providing a through hole having a rectangular cross section in the cylindrical main body. In addition, the conductive metal member provided on the inner peripheral surface of the columnar body that defines the through-hole is arranged such that the base boards are arranged at intervals so that a plurality of electric circuit boards are stacked. Of the base boards arranged in parallel to each other so as to face two base boards located on the upstream end side and the downstream end side in the insertion direction of the electrical connection member (that is, the rear end side and the front end side in the insertion direction). It is suitable for use in electrical connection of two connectors sandwiching all circuit boards.

  Further, according to each embodiment of the electric circuit board connection structure, the conductive metal members can be arranged while being separated even if the interval between the conductive metal members is narrowed. Is prevented.

  Further, according to each embodiment of the electric circuit board connection structure, since the bent portion of the conductive metal member engages with the electric contact portion of the electric connection portion, the electric connection member is the electric connection portion of the electric circuit board or It is locked by the electric connection part of the electric circuit board and the junction block and positioned with respect to the electric connection part. Further, if the electric connecting portion having elasticity is configured to contact the bent portion of the conductive metal member while being pressed, the conductive metal member, that is, the electric connecting member may be inserted with a slight shift in the longitudinal direction. The relative position between the bent portion and the electrical connection portion is automatically corrected to ensure a reliable connection. For example, it is preferable that the electrical contact portion of the electrical connection portion is formed in a curved arc shape and the conductive metal member is in contact with the arc, since the electrical connection member can be smoothly inserted and removed.

  Moreover, according to each embodiment of the said electric circuit board connection structure, since an electroconductive metal member is latched by the groove part by the latching protrusion part, drop-off | omission from the groove part of an electroconductive metal member is prevented.

  Further, according to each embodiment of the electric circuit board connection structure, the conductive metal member, which is a long and thin strip-like metal piece, is locked to the groove by the plurality of locking protrusions, and the locking protrusion and the plurality Since the recess is positioned in the groove portion in the longitudinal direction of the electrical connecting member and in the direction intersecting with the longitudinal direction, the conductive metal member is reliably prevented from falling off the groove portion.

  If the junction block side connector is provided with a plurality of electrical connection portions arranged so as to partially protrude into the insertion hole from the outer peripheral surface of the inner housing and the inner housing and electrically connected to the conductive paths, a columnar shape This is suitable for electrically connecting a plurality of conductive metal members on the inner peripheral surface of the main body.

  Further, according to each embodiment of the electric circuit board connection structure, the electronic control unit for in-vehicle electrical component control can be provided without distributing the electric circuit board in which the electronic control unit for in-vehicle electrical component control is mounted in each part of the vehicle. The installation space for the mounted electric circuit board can be reduced.

  As described above, according to the electrical connection member assembling method of the present invention, since a plurality of belt-like portions can be collectively fitted into the plurality of groove portions of the columnar body, the electrical connection member can be assembled in a short time. It can be done easily. Further, according to the electrical connecting member assembling method of the present invention, it is easy to increase the arrangement density of the band-shaped portions by narrowing the interval between the band-shaped portions in the conductive member integrated body. Can be arranged. Therefore, the unnecessary portion between the strip-shaped portions discarded at the time of press working can be reduced, and the waste of the conductive metal plate material that is the material of the conductive member integrated body can be reduced. Therefore, the manufacturing cost can be kept low. Further, according to the electrical connecting member assembling method of the present invention, even if the interval between the band-shaped portions is narrowed, the band-shaped portions can be arranged while being separated by the wall portion between the groove portions of the columnar body, so that the short-circuit between the band-shaped portions. Is prevented. In addition, with respect to the groove portions formed in the columnar main bodies of various shapes, a step of preparing and inserting a plurality of large and small conductive member integrated bodies necessary for fitting the belt-like portion into all of the groove portions and a step of cutting are prepared. If it repeats, a strip | belt-shaped part can be engage | inserted reliably.

It is a disassembled perspective view of 1st Embodiment of an electric circuit board connection structure. It is a principal part disassembled perspective view of an electric circuit board (junction block). FIG. 3 is an enlarged plan view of a portion surrounded by a circle III in FIG. 2. FIG. 4 is an enlarged view of a portion surrounded by an ellipse IV in FIG. 1. It is a schematic diagram which shows the connection state of an electrical connection member, an electric circuit board | substrate, and a junction block. It is a longitudinal cross-sectional view which shows the contact state of the electroconductive metal member of an electrical connection member, and the electrical connection part of a hollow connector. It is a principal part cross-sectional view which shows the contact state of the electroconductive metal member of an electrical connection member, and the electrical connection part of a hollow connector. It is a perspective view of a substrate storage box. It is a perspective view which shows the state just before a conductive member integration body is engage | inserted by a columnar main body. (A)-(c) is principal part sectional drawing which shows the process in which the strip | belt-shaped part of an electroconductive member integrated body is engage | inserted by the groove part of a columnar main body. It is a perspective view which shows the state by which the strip | belt-shaped part of the electrically-conductive member integrated body was engage | inserted in the groove part of the columnar main body. It is a perspective view which shows the state from which the strip | belt-shaped part of the electrically-conductive member integrated body protruded from the both ends of the columnar main body was cut off with the connection part, and the electroconductive metal member was isolate | separated. It is a perspective view of the electric connection member in the 1st modification, a hollow connector, and an electric circuit board. It is a perspective view of the electric connection member in the 2nd modification, a hollow connector, and an electric circuit board. It is a perspective view of the electrical connection member in the 3rd modification, a hollow connector, and an electric circuit board. It is a disassembled perspective view of 2nd Embodiment of an electric circuit board connection structure. It is an enlarged view of the part enclosed by the ellipse XVII in FIG. It is a disassembled perspective view of the junction block side connector. It is a perspective view of a substrate storage box. It is a side view which decomposes | disassembles and shows an electric circuit board connection structure. It is a longitudinal cross-sectional view which shows the connection state of an electrical connection member and an electrical circuit board. It is a perspective view which shows the conventional connection structure where the connector branched from the wire harness of the same wiring system is connected to several ECU board | substrates.

Explanation of symbols

21: Electric circuit board 23: Electric connection member 25: Base board 25a: Through hole 26: Electric circuit pattern 31: Junction block 33: Base board (base)
33a: Insertion hole 39: Columnar body 39a: Planar outer side surface 39b: Groove 39d: Locking projection 41: Conductive metal member 41a: Convex bent part 55: Hollow connector 57: Frame-shaped housing 57a: Insertion hole 59: Electrical connection

Claims (2)

Preparing a columnar body formed of an insulating material;
Preparing a conductive member integrated body having a plurality of strip-shaped portions and a plurality of connecting portions, which are integrally formed from a conductive metal plate by press working; and
An electrical connection member assembly method comprising:
The columnar body includes a plurality of grooves formed so as to extend in parallel with each other in the longitudinal direction thereof, and the plurality of belt-shaped portions are provided in parallel with a space in the conductive member integrated body, and the plurality of belt-shaped bodies are provided. Both ends of the part are connected by the connecting part,
Fitting the plurality of strip-shaped portions of the conductive member integrated body into the plurality of groove portions of the columnar body, respectively,
Cutting the plurality of strip portions protruding from both ends of the columnar body together with the connecting portion by the fitting step;
An electrical connection member assembling method further comprising:   The step of preparing the conductive member assembly includes the step of preparing a plurality of the conductive member assemblies, and the step of fitting and the step of cutting are repeated, whereby the plurality of grooves in the columnar body are all over the grooves. The electrical connection member assembling method according to claim 1, wherein a plurality of belt-like portions are fitted.

Images