JPH0879943A - Wiring method for wiring board assembly - Google Patents

Abstract

PURPOSE: To obtain a highly reliable high productivity wiring method for wiring board assembly which can deal with various types of wiring boards an in which rigid press contact can be ensured between a wire and a press contact terminal arranged on a wiring board. CONSTITUTION: A wire laying board 1 is provided with terminal insertion holes 10 at positions corresponding to press contact terminals 6 or the press contact terminal parts 9 of bus bars 8 arranged on a wiring board 2. A wire holding wall is provided between protrusions 5, 5 and a wire is held in a wire holding groove made in the wire holding wall thus forming a wire stopper. The wire stopper is then superposed on the wiring board 2 and the press contact terminal 6 is inserted into the terminal insertion hole 10. The wire stopped in the wire holding groove is then press fitted in the slot of the press contact terminal 6 by pressing a press fit jig.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring method for a wiring board assembly housed in an electric junction box used for interconnection of wire harnesses.

[0002]

2. Description of the Related Art Generally, an electric circuit in an electric connection box is a wiring board in which a plurality of bus bars and pressure contact terminals are arranged on an insulating substrate and electric wires and electric parts are connected to each other to form a desired electric circuit. It is housed and connected to a wire harness and electrical components via a connector.

As a proposal for efficiently forming such a wiring board, for example, Japanese Utility Model Laid-Open No. 6-13329 discloses an electric junction box J as shown in FIG. The electric junction box J is a combination of a collective molded body S, which is pre-positioned at the position of the terminal b to which the electric wire a is to be connected and integrally molded with the insulator c, and a terminal plate T in which the terminal b is incorporated. , The electric wire a of the collective molded body S
And the terminal b of the terminal plate T are pressed into contact with each other to be housed in the case of the electric junction box J.

Therefore, there is an advantage that a large number of terminals b arranged on the terminal plate T can be pressed together with a plurality of electric wires a, but since a large number of terminals b are pressed together, it is large in pressure contact. Since pressing force is required and it is difficult to find even a terminal with incomplete pressure contact, it is necessary to keep the accuracy of the positions of a large number of terminals b and electric wires a high, and productivity and reliability in the actual manufacturing process are improved. There is a big problem in sex.

Further, Japanese Patent Application Laid-Open No. 6-96829 discloses that
As shown in FIGS. 11 and 12, the wiring head group E mounted on the frame e and the wiring head group F mounted on the frame f grip the electric wire d, and the wiring head groups E, F
By moving on the frames e and f respectively,
A method is disclosed in which wiring is performed by sequentially press-contacting predetermined press-contacting terminals g provided on the wiring boards h and h '.

However, in the wiring method shown in FIG. 11, when the wiring circuit is complicated and the positions of the pressure contact terminals g are arranged in a wide range, the interval between the frames e and f must be increased. However, it is necessary to increase the moving width of the electric wire chuck j, and there are drawbacks such as a reduction in productivity in the wiring process and a complicated mechanism, which makes it difficult to deal with various types of wiring boards. Have

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above problems, and the pressure contact of an electric wire to the pressure contact terminal of a wiring board or the pressure contact terminal portion of a bus bar can be surely performed, so An object of the present invention is to provide a wiring method for a wiring board assembly which is highly productive and reliable and can be applied to various types of wiring boards.

[0008]

In order to achieve the above object, the wiring method of a wiring board assembly according to the present invention is a wiring board having a pressure contact terminal having a slot or a bus bar provided with the pressure contact terminal portion. In the wiring method of a wiring board assembly in which a desired circuit is formed by arranging wires and press-fitting an electric wire into the slot, the wiring board corresponds to the position of the pressure contact terminal of the wiring board or the pressure contact terminal portion of the bus bar. A plurality of electric wire holding walls having electric wire holding grooves, the electric wires are routed between the electric wire holding walls, and the electric wires are sandwiched in the electric wire holding grooves. After forming the stopper, the wire locking body is superposed on the wiring board, the pressure contact terminal or the pressure contact terminal portion of the bus bar is inserted into the terminal insertion hole, and the wire inserted in the wire retaining groove is pressed in. The pressure is applied by pressing the jig. Wherein the press-fitted into the slots of the insulation displacement terminal portion of the terminal or the bus bar. The wire holding wall is
It is preferable that the electric wire holding wall is provided so as to extend between the protrusions provided on the wiring plate (claim 2).

[0009]

According to the present invention, the electric wire is inserted into the electric wire holding groove of the wiring board, and the electric wire locking body is prepared by temporarily locking the electric wire in the wiring state in advance. Since the electric wire is press-fitted into the slot while the pressure-contact terminal is inserted into the terminal insertion hole of the wiring board so as to be superposed on the plate, the electric wire can be press-fitted reliably and quickly. In addition, by installing a wiring process for the wiring board separately from the wiring board assembly manufacturing line, an electric wire locking body for temporarily locking the electric wires is prepared in advance, and the wiring board is assembled into the wiring board as needed. Since it can be put into a three-dimensional production line, the productivity of the production line is improved. Furthermore, since it is possible to prepare many kinds of wire locking bodies with different circuits in advance, it is possible to supply the wire locking bodies to the manufacturing line of a plurality of wiring board assemblies of different kinds. The efficiency of variety production is improved. By extending the wire holding wall between the ridges provided on the wiring board, the wires are routed between the ridges, so the wires can be prevented from contacting each other by the ridges, and Holds securely.

[0010]

1 is a perspective view showing a wiring board 1 and a wiring board 2 according to an embodiment of the present invention before being wired. The wiring board 2 is to be housed between the main cover 3 and the under cover 4 forming the electrical junction box after the wiring is completed. The wiring board 1 is formed by molding an electrically insulating synthetic resin material, and the ridges 5 are juxtaposed on the substrate portion 1a at predetermined intervals.

As shown in FIG. 2, between the adjacent ridges 5 and 5, the board portion 1a is provided at a position corresponding to the pressure contact terminal 6 arranged on the wiring board 2 or the pressure contact terminal portion 9 of the bus bar 8. A plurality of terminal insertion holes 10 penetrating therethrough are opened. Also,
As shown in FIG. 3, in the vicinity of the end portions 5a, 5b, 5c of the ridge 5 and the terminal insertion hole 10, the slots 6a of the pressure contact terminal 6 or the pressure contact terminal portion of the bus bar 8 as shown in FIG. An electric wire locking wall 12 having a gap 11 that is slightly wider than the width of the slot 9a of 9 is provided between adjacent ridges 5 and 5.

Next, a process of performing wiring on the above wiring board 1 by a wiring machine M as shown in FIG. 5 in accordance with a predetermined wiring position will be described. The wire-wiring machine M is constructed by mounting a wire-wiring head having a pair of front heads P and rear heads Q, which are in series with each other, on an upper frame (not shown), and has a wiring board at the lower part. A wiring stand R on which 1 or the wiring board 2 is placed is provided.

The front head P includes an electric wire chuck 15 which can be opened and closed, a plate-like pressure welding jig 16 and a pair of guide pins 17.
The above three members are arranged side by side in a row so that each member can be independently moved up and down. Similarly, in the rear head Q, a pair of guide pins 18, a pressure welding jig 19 and an electric wire cutter 20 are arranged in parallel, and an electric wire holding rod 21 which is movable back and forth with respect to the electric wire chuck 15 is provided below these members. Consists of As shown in FIG. 6, the electric wire holding rod 21 is formed by providing an electric wire insertion hole 23 in a head portion 22 on the lower surface of the tip end portion and inserting an electric wire chuck 25 in a recess 24 provided in the back surface of the head portion 23. Is. Reference numeral 13 is an electric wire to be held.

The wiring board 1 is placed on the wiring board R of the wiring machine M, and the electric wire holding rod 21 holding the electric wire 13 is moved to the left, whereby the electric wire chuck 15 of the front head P is moved.
Let the electric wire 13 be sandwiched between. Wire 13 to wire chuck 15
After holding the wire, move the wire holding rod 21 to the right,
Next, the pressure welding jig 16 or 19 is lowered to move the electric wire 13
Is inserted into the gap 11 of the electric wire locking wall 12 of the wiring board 1. By repeating the above steps, the electric wire 13 is inserted into the gap 11 of the predetermined electric wire locking wall 12 of the wiring board 1 to form the electric wire locking body 14 as shown in FIG. 7.
At this time, the electric wire 13 is, as shown in FIG.
Alternatively, the bus bar 8 is inserted so as to be temporarily locked at a position higher than the height of the pressure contact terminal portion 9 (see FIG. 9).

Next, the electric wire locking body 14 is attached to the wiring stand R.
Then, the pressure contact terminal 6 or the pressure contact terminal portion 9 of the bus bar 8 is inserted into the terminal insertion hole 10 of the wiring board 1 after being removed from the wiring board 2. Then, the wiring board 2 on which the electric wire locking body 14 is superposed is placed on the wiring stand R, and the pressure welding jig 16 or 19 is lowered to fix the electric wire 13 temporarily locked to the electric wire locking body 14.
It is press-fitted into the slot 6a of the press contact terminal 6 or the slot 9a of the press contact terminal portion 9 of the bus bar 8. FIG. 9 shows a state in which the electric wire 13 is press-fitted into the slot 6a or the slot 9a.

By repeating this operation, the wiring board 2
The wire 13 is wired to the wiring board 1. The step of pressing the electric wire 13 into the slot 6a of the pressure contact terminal 6 of the wiring board 2 or the slot 9a of the pressure contact terminal portion 9 of the bus bar 8 is the wiring board 1
By performing the arrangement for each of the protrusions 5 arranged in accordance with the length, the pressure contact can be performed efficiently. The wiring board 2 for which wiring has been completed is housed between the main cover 3 and the under cover 4 which constitute the electrical junction box by removing the wiring board 1.

The electric wire 1 temporarily locked to the electric wire locking body 14.
Wiring board 1 after press-fitting all of 3 into the press-connecting terminal 6 or the press-connecting terminal portion 9 of the bus bar 8 can be removed from the wiring board 2 and re-wiring can be performed. You can

[0018]

According to the present invention, since the electric wire locking body in which the electric wire is temporarily locked to the wiring board in advance is superposed on the wiring board to press the electric wire to the press contact terminal of the wiring board, The electric wire can be press-fitted securely and quickly. In addition, by installing a wiring process for the wiring board separately from the wiring board assembly production line, an electric wire locking body for temporarily locking the electric wires is prepared in advance, and the wiring board assembly manufacturing line is provided at any time. Since the electric wire locking body can be put in, the productivity of the production line is improved. Furthermore, since it is possible to prepare many kinds of wire locking bodies with different circuits in advance, it is possible to supply the wire locking bodies to a manufacturing line of a plurality of wiring board assemblies of different kinds. There are great advantages such as being suitable for variety production.

[Brief description of drawings]

FIG. 1 is a perspective view showing a wiring board and a wiring board according to an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the wiring board of FIG.

FIG. 3 is a cross-sectional view showing an electric wire holding wall of the wiring board of FIG.

FIG. 4 is a perspective view of a bus bar having pressure contact terminals and pressure contact terminal portions arranged on the wiring board of FIG.

5 is an explanatory view of a wiring machine for wiring electric wires on the wiring board or the wiring board of FIG. 1. FIG.

6 is a perspective view showing the wire holding rod of FIG. 5. FIG.

FIG. 7 is a plan view of an electric wire locking body formed by laying an electric wire on the wiring board of FIG. 1.

FIG. 8 is an explanatory view showing an electric wire temporarily locked in the electric wire holding groove of FIG.

9 is an explanatory view showing a state in which the pressure contact terminal of the wiring board is inserted into the wire insertion hole of the wire lock body of FIG. 7 and the wire is pressure contacted.

FIG. 10 is an explanatory view of a conventional electric junction box in which an electric wire and a terminal are collectively connected.

FIG. 11 is an explanatory view showing a conventional wiring machine used for a wiring method of a wiring board assembly.

FIG. 12 is an explanatory view showing a wiring method by the wiring machine of FIG. 11.

[Explanation of reference symbols] 1 wiring board 2 wiring board 5 ridge 6 pressure contact terminal 6a slot 8 bus bar 9 pressure contact terminal part 9a slot 10 terminal insertion hole 11 wire holding groove 12 wire holding wall 13 wire 14 wire locking body 16 press fitting Tool 19 Press-fitting jig

Claims (2)

[Claims] 1. A wiring board assembly for forming a desired circuit by arranging an electric wire on a wiring board provided with a pressure contact terminal having a slot or a bus bar having a pressure contact terminal portion and press-fitting the wire into the slot. In the wiring method, the wiring board is provided with a terminal insertion hole corresponding to the position of the pressure contact terminal of the wiring board or the pressure contact terminal portion of the bus bar, and a plurality of electric wire holding walls having electric wire holding grooves are formed, Wires are arranged between the electric wire holding walls and the electric wires are inserted into the electric wire holding grooves to form electric wire locking bodies, and then the electric wire locking bodies are superposed on the wiring board to form terminal insertion holes. It is characterized in that the pressure contact terminal or the pressure contact terminal portion of the bus bar is inserted, and the wire sandwiched in the wire holding groove is pressed into the slot of the pressure contact terminal portion of the pressure contact terminal or the bus bar by pressing the pressure fitting jig. Wiring board How to wire three-dimensional. 2. The wiring method for a wiring board assembly according to claim 1, wherein the electric wire holding wall is an electric wire holding wall that is provided so as to extend between the ridges provided on the wiring board.