JP3013962B2 - Wiring method of wiring board assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, when manufacturing a wiring board assembly in an electric junction box, since wiring work between press-connecting terminals is performed exclusively by hand, it takes time. There was a problem of accidentally connecting. Therefore, we have filed Japanese Patent Application No. 5-89876.
(2) proposed a wiring method and a wiring device capable of quickly performing wiring and pressure welding of a wiring board assembly forming an internal circuit of an electric junction box.

The wiring method according to the above-mentioned application uses a wiring board assembly M built in an electric junction box J as shown in FIG.
This is a method of wiring the electric wire 1 between N. FIG. 22 is a side view of the wiring device P. The wiring device P includes a plurality of front heads Q and a plurality of rear heads R, and wiring board assemblies M and N disposed on the wiring board 2. The wiring and press-contact of the electric wire 1 are performed on the plurality of press-contact terminals 9 provided in the above. The front head Q and the rear head R are mounted from the frames S and T (see FIG. 23) so as to be able to move up and down and move in parallel (XY travel) with respect to the wiring board 2.

FIGS. 23 to 26 are explanatory diagrams of the wiring process. Step 1 (FIG. 23) shows the initial state,
The front head group (1Q to 4Q) is located outside the wiring board assembly M (left side in the figure), and the rear head group (1R to 4R) is located outside the wiring board assembly N (right side in the figure). ing. The front head group includes four front heads 1Q to 4Q integrally arranged side by side, and the movement is performed simultaneously. Similarly, the rear head group (1R to 4R) also includes four rear heads that are integrally arranged. The four electric wires 1 are clamped by the electric wire chucks 3a of the electric wire holding rods 3 of the rear heads 1R to 4R, and the tips thereof are protruded by a predetermined length.

[0005] Step 2 (FIG. 24), each rear head 1R~4R which sandwiches the wire 1 is moved in the X _F-axis direction (left), front head tip 1a of the wire 1 projecting 1Q~4
It is clamped by the wire chuck 4 of Q.

In step 3 (FIG. 25), each rear head 1
Release the wire chucks 3a of R to 4R to release each rear head 1
This shows a state in which R to 4R have been returned to the initial state.
The wires 1 are held in parallel between the wiring board assemblies M and N.

In step 4 (FIG. 26), the pressing jig 5,
A pair of wire guide pins 6 and a pair of wire guide pins 7;
After the pressure welding jig 8 is lowered to above the wire 1 and the wire guide pins 6 and 7 support both sides of the middle portion of the wire 1 in the first row,
Front wiring heads 1Q to 4Q and rear heads 1R to 4R
Each Y _E, is moved in the Y _F direction, to reach the wire 1 of the first row in place. When the front head 1Q and the rear head 1R are positioned, the rear head 1
The electric wire chuck 3a of R is closed and the electric wire 1 is clamped and fixed.

Then, the entire front head 1Q and rear head 1R are lowered, and the electric wire 1 is pressed against predetermined press-contact terminals 9 ₁ and 9 ₁ ′ of the wiring board assemblies M and N. The crimping is
The crimping jigs 5 and 8 are simultaneously lowered so that the crimping terminals 9 ₁ and 9 ₁ ′
This is achieved by press-fitting the electric wire 1 into a slot provided in the. After the pressure welding, the wire cutter 10 descends to cut the wire 1. After the cutting, the front wiring heads 1Q to 4Q and the rear wiring heads 1R to 4R return to the height when the electric wires 1 are laid, and the wiring and pressure welding of the first electric wire are completed.

The above steps 1 to 4 are performed one by one on the second and subsequent wires so as to perform positioning and pressure welding with respect to the other press contact terminals. Therefore, when wiring a large number of wires, it is necessary to repeat the operation. However, there is a problem that the time required for the wiring step due to the above becomes extremely long.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is intended to quickly and accurately perform wiring and pressure welding of a wiring board assembly forming an internal circuit of an electric junction box. It is an object of the present invention to provide a wiring method capable of performing the following.

[0011]

In order to solve the above problems SUMMARY OF THE INVENTION The present invention provides a wiring board assembly comprising the insulating substrate that supports a plurality of pressure contact terminals or bus bars having a contact portion, which opened a slot these A method of wiring a wiring board assembly for pressing a wire into said slot to form a desired circuit, comprising: a) a plurality of wiring boards arranged so as to be independently movable.
By simultaneously moving the wiring head , a plurality of electric wires can be simultaneously transferred between one side and the other side of the insulating substrate of the wiring board assembly.
A step of wired in parallel, b) a step of supporting at appropriate intervals two points of the intermediate portion of each column of the wire, to hold the respective wires in a straight line outside the support region, c) said plurality The wiring heads are independently moved perpendicularly to the wiring direction so that the electric wires do not cross each other, and one side and the other side of the wiring board assembly or two wiring board sets. A step of positioning each wire on a slot of a predetermined press-contact portion of the three-dimensional body; and d) a step of pressing each of the positioned wires in each row against each of the slots and then cutting.

[0012]

[Action] Due to the plurality of the wiring head to move independently, by Rukoto are moved simultaneously a plurality of the wiring head of each wire is sandwiched, positioned and the wires for a plurality of pressure contact terminals Pressure welding can be performed.
Therefore, the electric wires held by the plurality of wiring heads can be collectively wired, so that the productivity of the wiring step is remarkably improved.

[0013]

FIG. 1 is an exploded perspective view of an electric junction box A according to the present invention, and FIG. 2 is a perspective view showing a wiring method between wiring board assemblies B and C constituting an internal circuit thereof. The electric connection box A accommodates the wiring board assemblies B and C in the upper case 11 and the lower case 12 to be paired, respectively.
It is configured by connecting between them with a plurality of electric wires 21. 13 is a fuse cavity, 14 is a relay mounting part,
Reference numeral 15 denotes a receiving connector for a terminal connector (not shown) of the wire harness.

As shown in FIG. 2, the wiring board assemblies B and C are formed by laminating a plurality of insulating substrates 16 ₁ , 16 ₂ ,... A plurality of insulation displacement terminals 17 are provided on the upper insulating substrates 16 ₄ and 16 ₄ ′. The press contact terminal 17 has a male terminal portion 17a at one end and a press contact portion 17b having a slot 17c at the other end.
It comprises. The insulation displacement board 16 of each layer has
Are provided at arbitrary intersections of the virtual grid, that is, at a predetermined interval on a virtual line L arranged at a predetermined pitch P. A bus bar 19 is provided on the insulating substrates 16 ₃ , 16 ₂ , 16 ₁ in the third and subsequent layers as in the prior art, and the tab 2
0 is led into the fuse cavity 13, the relay mounting portion 14, and the receiving connector 15 together with the terminal portion 17 a of the press contact terminal 17.

Depending on the configuration of the circuit, a part of the plurality of press contact terminals 17 may be partially replaced with bus bars 19 'provided with press contact portions 19b provided with slots 19c together with branch tabs 19a, as indicated by phantom lines. It can also be replaced by. Therefore, as shown in phantom in FIG. 2, the wire 21 two wiring board assembly B, the C crimp terminals 17 slot 17
A desired circuit is formed by press-fit connection to c.

FIG. 3 is a side view of the wiring device D, FIG. 4 is an enlarged perspective view of the wire chuck portion of FIG. 3, and FIG. 5 is a plan view showing a first step of wiring by the device of FIG. Wiring device D
A wiring board 22 is provided. On the wiring board 22, two wiring board assemblies B and C are arranged at appropriate intervals, and a large number of wiring board assemblies B and C are provided on the wiring board assemblies B and C. The press contact terminals 17 are fixed in parallel over a plurality of rows with the slots 17c protruding from the upper surface. On the upper side, four front wiring heads 1E, 2E, 3E, 4E (represented simply by E in a representative case) are individually and independently mounted on the wiring plate 22 in the first frame 34. On the other hand, it is mounted so as to be able to move up and down and move in parallel (X-Y axis traveling). The four rear wiring heads 1F, 2F, 3F, and 4F (represented simply by F in the representative case) are individually moved up and down and translated (X- (Y-axis traveling) is provided. Drawing Y _E axis movement direction of the front wiring head E, X _F -Y _F is the moving direction of the rear wiring head F, representing respectively.

The front wiring head E is composed of an openable and closable electric wire chuck 23 and a plate-shaped pressing jig 24 in order from the left end side in FIG.
And a set of three members of a pair of wire guide pins 25,
These are arranged in a line so that each member can be raised and lowered independently. Similarly, the rear wiring head F arranges a pair of electric wire guide pins 26, a press-fitting jig 27, and an electric wire cutter 28 in order from the left side, and holds an electric wire that can move forward and backward with respect to the electric wire chuck 23 below these members. A rod 29 is provided. The electric wire holding rod 29 is shown in FIG.
As shown in FIG.
And an electric wire chuck 33 is inserted into a concave portion 32 provided on the back surface of the head 30.

Next, a wiring step and a press contact step between the two wiring board assemblies B and C will be described with reference to FIGS. 5 to 14 and FIGS. 15 to 20. Step 1
(FIGS. 5 and 15) show an initial state, in which the front wiring head group E is located outside the wiring board assembly B (left side in the figure), and the rear wiring head F group is outside the wiring board assembly C. (Right side in the figure). The four electric wires 21 are connected to each rear wiring head 1F.
4F to 4F are held by the electric wire chuck 33 of the electric wire holding rod 29, and the front end of the rod is protruded from the head 30 by a predetermined length 21a. (See FIG. 4).

In step 2 (FIGS. 6 and 16), an electric wire holding rod 29 of each of the rear wiring heads 1F to 4F holding the electric wire 21 is used.
Group is moved in the X _F-axis direction (left), the electric wire 21 that protrudes from the head 30 leading end portion 21a of the front wiring head 1E~4E
Of the wire chuck 23.

In step 3 (FIGS. 7 and 17), the electric wire chucks 33 of the rear wiring heads 1F to 4F are released, and the electric wire holding rod 29 returns to the initial state. As a result, the four electric wires 21 are held in parallel between the wiring board assemblies B and C.

In step 4 (FIGS. 8, 18 to 20), the pressing jig 24, a pair of wire guide pins 25, a pair of guide pins 26, and the pressing jig 27 of each front wiring head E After descending to the upper side and supporting both sides of the intermediate portion of each electric wire 21 with the electric wire guide pins 25 and 26, each of the front wiring heads 1E to 4E and each of the rear wiring heads 1F to 4F are independently Y-connected. _E, go to Y _F direction, respectively reaches a predetermined position. During the movement, the electric wire 21 is always tensioned rearward so as to prevent slack.
Also, the middle part of the electric wire 21 has two electric wire guide pins 25, 2
6, the electric wire 2 outside the restricted area
Both end portions of 1 are held linearly during movement.

When the front wiring heads 1E to 4E and the rear wiring heads 1F to 4F are positioned, the electric wire chucks 33 of the rear wiring heads 1F to 4F are closed to clamp and fix the electric wires 21. And each front wiring head 1E
4E and the rear wiring heads 1F to 4F are lowered to press the electric wires 21 to predetermined groups of press-contact terminals 17 in the wiring board assemblies B and C, respectively. Pressing jigs 24 and 27
Is achieved by press-fitting the electric wire 21 into the slot 17c (see FIG. 2). After the pressure welding, the wire cutter 28 descends to cut the wire 21 (FIG. 19). After cutting, the front wiring heads 1E to 4E and the rear wiring heads 1F to 4F return to the height when the electric wires 21 are laid,
The wiring and pressure welding of the four electric wires 21 are completed substantially simultaneously.

In step 5 (FIG. 9), the four electric wires 21
After completion of the wiring and pressure welding of each of the front wiring heads 1E
4E and the rear wiring heads 1F to 4F return to the initial state. In the above embodiment, the case where the number of wires is four is shown, but the number of wires and the number of each wiring head are not limited, and the pressure welding is performed at a position where all the wires do not cross each other. The circuit may be set as described above and the insulation displacement terminals may be arranged.

If it is necessary to wire the wires crossing each other, the wires may be divided into groups that do not cross each other, and wiring may be performed for each group. FIG. 10 to FIG. 14 show that between the two wiring board assemblies B and C, a new 4
It is explanatory drawing which showed the process of wiring the group of 21 electric wires.
In step 6 (FIG. 10), the four electric wires 21 are clamped by the electric wire chucks 33 of the electric wire holding rods 29 of the rear wiring heads 1F to 4F in the same manner as in the above-mentioned step 1, and the tips are only a predetermined length 21a. , Protruding from the head 30.

[0025] Step 7 (FIG. 11) is, wire 21 wire holding rod 29 group of each rear wiring head 1F~4F which sandwiches the wire 21 is moved in the X _F-axis direction (left), projecting from the head 30 Of the front wiring heads 1E to 4E.

In step 8 (FIG. 12), the electric wire chucks 33 of the rear wiring heads 1F to 4F are released, and the electric wire holding rod 29 returns to the initial state. Thereby, the four electric wires 21
Are held in parallel between the wiring board assemblies B and C.

In step 9 (FIG. 13), the pressing jig 24 of each front wiring head E, a pair of electric wire guide pins 25,
After the pair of guide pins 26 and the press-fitting jig 27 descend to the upper side of the electric wire 21 and support the both sides of the middle portion of each electric wire 21 with the electric wire guide pins 25 and 26, each of the front wiring heads 1E to 4E
And each rear wiring head 1F~4F is independently Y _E, go to Y _F direction, respectively reaches a predetermined position. When the front wiring heads 1E to 4E and the rear wiring heads 1F to 4F are positioned, the wires 21 are pressed against the predetermined press-connecting terminals 17 in the wiring board assemblies B and C in the same manner as in Step 4. I do. After the pressure welding, the wire cutter 28 descends to cut the wire 21 and the four wires 2
The first wiring and pressure welding are completed almost simultaneously.

In step 10 (FIG. 14), after the wiring and pressure welding of the four electric wires 21 are completed, the front wiring heads 1E to 4E and the rear wiring heads 1F to 4F return to the initial state. .

In the embodiment described above, the front wiring heads 1E to 4E and the rear wiring heads 1F to 4F are used.
Although the process of wiring and crimping the four wire groups collectively has been described, the number of front wiring heads E and rear wiring heads F is not limited to four, and the size and wiring of the wiring board assembly are not limited. Can be increased or decreased as appropriate according to the number of.

[0030]

According to the present invention, a plurality in parallel for the wiring head has to move independently to move the plurality of wiring head which sandwiches the wire simultaneously, a plurality of Positioning and pressure contact can be performed on the pressure contact terminal. Therefore, a plurality of electric wires sandwiched by a plurality of wiring heads can be collectively wired, so that the wiring can be completed in a short time, productivity is remarkably improved, and the middle part of the wirings intersects neatly. There are advantages in that the wiring form can be obtained and maintenance and inspection become easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an electric junction box wired according to the present invention.

FIG. 2 is a perspective view showing a wiring method between two wiring board assemblies in FIG. 1;

FIG. 3 is an explanatory diagram illustrating an example of an apparatus for performing wiring according to the present invention.

FIG. 4 is a perspective view showing the electric wire chuck of FIG. 3;

FIG. 5 is a plan view showing an initial step of wiring using the apparatus of FIG. 3;

FIG. 6 is a plan view showing the next step of FIG.

FIG. 7 is a plan view showing the next step of FIG.

FIG. 8 is a plan view showing the next step of FIG.

FIG. 9 is a plan view showing the next step of FIG.

FIG. 10 is a plan view showing a step subsequent to FIG. 9;

FIG. 11 is a plan view showing the next step of FIG.

FIG. 12 is a plan view showing the next step of FIG.

FIG. 13 is a plan view showing the next step of FIG.

FIG. 14 is a plan view showing the next step of FIG.

FIG. 15 is a side view showing the first step of wiring using the apparatus of FIG. 3;

FIG. 16 is a side view showing a step subsequent to FIG. 15;

FIG. 17 is a side view showing the next step of FIG. 16;

FIG. 18 is a side view showing a step subsequent to FIG. 17;

FIG. 19 is a side view showing the next step of FIG. 18.

FIG. 20 is a side view showing the next step of FIG. 19.

FIG. 21 is a perspective view showing wiring inside a conventional electric junction box.

FIG. 22 is a side view of an apparatus for wiring the electric junction box of FIG. 21;

FIG. 23 is a plan view showing an initial step of performing wiring using the apparatus of FIG. 22;

FIG. 24 is a plan view showing the next step of FIG. 23.

FIG. 25 is a plan view showing the next step of FIG. 24.

FIG. 26 is a plan view showing a step subsequent to FIG. 25.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Electrical connection box B, C Wiring board assembly D Wiring device E Front wiring head F Rear wiring head 16 Insulating board 17 Pressure contact terminal 17c Slot 21 Electric wire

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B60R 16/02 H01B 13/00 513 H01R 4/24 H01R 43/00-43/01 H05K 13/06

Claims (1)

(57) [Claims] An electric wire is pressed into said slot of a wiring board assembly comprising a plurality of press-contact terminals or bus bars having a press-contact portion having a slot and an insulating substrate for supporting the same, thereby forming a desired circuit. What is claimed is: 1. A wiring method for a plate assembly, comprising: a) a plurality of wiring members arranged so as to be independently movable.
By simultaneously moving the wiring head , a plurality of electric wires can be simultaneously transferred between one side and the other side of the insulating substrate of the wiring board assembly.
A step of wired in parallel, b) a step of supporting at appropriate intervals two points of the intermediate portion of each column of the wire, to hold the respective wires in a straight line outside the support region, c) said plurality The wiring heads are independently moved perpendicularly to the wiring direction so that the electric wires do not cross each other, and one side and the other side of the wiring board assembly or two wiring board sets. A step of positioning each electric wire on a slot of a predetermined press-contact portion of the three-dimensional body; and d) a step of pressing each of the positioned electric wires of each row against the slot and then cutting. Wiring method of board assembly.