JP2002315150A - Wire connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire connection structure which enables the further higher density wiring of wires wired on an insulation board with connection members between. SOLUTION: This wire connection structure is such that, a plurality of compression terminals 13A and 13B are made to protrude from one surface of an insulation board 11, and wires W are connected with the compression terminals 13A and 13B. Slots 18 with which the wires W having same diameters can be connected in the multistage arrangement from its top are formed with same widths and long lengths on tips of at least one compression terminal 13B. As a result, the wires W can be wired in the multistage arrangement on the insulation board 11. With such a constitution, the number of wires W which can be wired on the certain area can be increased, so that the further higher density wiring can be realized. By the higher density wiring, the dimensions of the insulation board 11 can be also reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire connection structure for a wiring board housed in, for example, an electric junction box.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional example of an electric wire connection structure of a wiring board housed in an electric junction box of an automobile or the like (for example, Japanese Patent Application Laid-Open Nos. 6-29073 and 11).
-89049). As shown in FIG. 4, the wiring board 1 has an electric wire connection structure in which the electric wire W is press-fitted and connected to a plurality of press contact terminals 2 as connection members protruding from one surface of the insulating substrate 3. The insulating substrate 3 is provided with an electric wire locking portion 5 having a groove portion 4 capable of locking the electric wire W, and the electric wires W to be press-fitted and connected to the press contact terminals 2 are respectively locked in the groove portions 4. When laying the electric wire W on the wiring path on the insulating substrate 3,
After the electric wire W is wired in the groove 4 of the electric wire locking portion 5, the electric wire W is press-fitted and connected to the press contact terminal 2, and the electric wire W is cut at a predetermined position to form a desired circuit.

As described above, in the electric wire connection structure in which the electric wire W is connected to the plurality of press contact terminals 4 on the insulating substrate 5,
There is an advantage that the circuit can be easily changed by changing the wiring route of the electric wire W or the cut point.

[0004]

However, in the above-mentioned conventional electric wire connection structure, the number of electric wires W that can be laid on the insulating substrate 3 having a certain area is limited, and the electric wires W are laid on the insulating substrate 3. There is a limit to the density of the electric wire W.

Accordingly, the present invention has been made to solve the above-mentioned problem, and provides an electric wire connection structure which enables further densification of electric wires laid on an insulating substrate via connecting members. The purpose is to:

[0006]

According to the first aspect of the present invention,
In an electric wire connection structure in which a plurality of connection members that can be electrically connected to electric wires are protruded from one surface of an insulating substrate and the electric wires are connected to the connection members, a plurality of electric wires having the same diameter are provided at least at a tip of one connection member. Slots that can be connected in multiple stages from above are formed in the same width and long.

According to the first aspect of the present invention, a plurality of electric wires having the same diameter are formed at the leading end of at least one connecting member so as to be long and connectable in multiple stages from above. By increasing the number of electric wires that can be laid on the insulating substrate having a large area, it is possible to further increase the density of electric wires laid on the insulating substrate. With the increase in the density, the size of the insulating substrate can be reduced. Also, since the slots are formed to have the same width, the distance between adjacent wires connected in the slot can be made variable, and the distance between the wires connected in the slot and the insulating substrate can also be made variable. It is possible to form an extremely free wiring route three-dimensionally on the substrate.

According to a second aspect of the present invention, the connection member according to the first aspect is a pressure contact terminal that can be mounted on an insulating substrate.

According to the second aspect of the present invention, since the connecting member is a press contact terminal, the projecting position of the connecting member projecting from one surface of the insulating substrate can be freely selected, so that the manufacturable wiring path is free. More often.

According to a third aspect of the present invention, the connecting member according to the first aspect is a tab formed by bending a distal end portion of a bus bar provided on an insulating substrate.

According to the third aspect of the present invention, since the connecting member is the tab portion of the bus bar, the projecting position of the tab portion can be determined in advance in the wiring board manufacturing process, which is suitable for lot production.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1A is a plan view showing an embodiment of a wiring board to which the electric wire connection structure of the present invention is applied.
2B is a cross-sectional view of the electric wire holding structure, FIG. 2 is a perspective view showing a main part of the electric wire connection structure of FIG. 1, and FIG. 3 is a perspective view showing a bus bar as another form of connecting member.

The electric wire connection structure of the present embodiment is an example applied to a wiring board 10 housed between an upper case and a lower case (not shown) constituting an electric connection box.

The wiring board 10 includes an insulating substrate 11, an electric wire locking portion 12, a plurality of press contact terminals 13 as connecting members, and an electric wire W connected across the plurality of press contact terminals 13. I have.

The insulating substrate 11 has a plurality of wire holding portions 12A and 12A forming wire locking portions 12 for locking the wires W.
B protrudes over multiple rows.

Each of the wire locking portions 12A and 12B is formed with five grooves 14, and the wires W laid in the grooves 14 are narrowed by ribs 15 protruding from both wall surfaces of the grooves 14. I have The groove portion 13 is formed to have the same width from the top surface to the bottom surface so that electric wires having the same diameter can be held in multiple stages in the thickness direction (vertical direction) of the insulating substrate 11. Further, a terminal fitting hole 16 into which the press contact terminal 13 can be freely attached is formed on the bottom surface of the groove 13. Here, the wire locking portion 12
A and 12B are mostly multi-stage electric wires W (FIG. 1B).
A step portion 17 having a height that can be locked in the middle and vertical directions and having a lower upper surface set so as to partially lock only the lower electric wire W is formed.

The press contact terminal 13 includes a single-stage press contact terminal 13A.
2 and a multi-stage press contact terminal 13B. As shown in FIG. 2, each of the press contact terminals 13A and 13B has a press contact portion 19 having a slot 18 at one end and a terminal portion 20 at the other end. Each of the press contact terminals 13A, 13B is fitted and fixed in the terminal fitting hole 16, and the electric wire W laid in the groove 14 is inserted into the slot 1 of the press contact terminals 13A, 13B.
8 and 18 are press-fitted, and the conductor portion of the electric wire W and the press-connecting terminal 13
A and 13B are electrically connected to the edges of the slots 18 and 18. Then, the single-stage press contact terminal 1
3A is formed at a depth such that its slot 19 can be connected to only one electric wire W, while the multi-stage press-connecting terminal 13B
The slot 18 is formed to be long with a depth that allows three wires W to be connected in multiple stages. Here, the long slot 19 of the multi-stage press contact terminal 13B extends from the distal end side to the proximal end side with the same width.

Therefore, this multi-stage connection terminal 13B is
As shown in FIG. 2, a plurality of wires W can be connected to the upper and lower stages (up to three wires W can be connected), and the multi-stage connection terminals 13 are connected to the wires W to be connected.
When there is room in the depth of the slot 19 of B, the electric wire W can be held at any position in the slot 19.

The press contact portion 19 of the single-stage press contact terminal 13A is provided.
Is an electric wire W connected to the upper side of the multi-stage press contact terminal 13B.
Is formed low so as not to come into contact with.
For example, as shown in FIG. 2, if the electric wire W is wired in a predetermined groove portion 14 in two stages, the multi-stage press contact terminal 13B is connected to a pair of upper and lower electric wires W, W, while the single-stage press contact terminal 1B is connected.
3A is designed to be connected to only the lower electric wire.

According to the electric wire connection structure of the wiring board 10 of this embodiment, since the press contact terminals 13B capable of connecting a plurality of electric wires W, W in multiple stages are used, the electric wires W, W are laid in multiple stages on the insulating substrate 11. can do. Therefore, the number of electric wires that can be laid on the insulating substrate 11 having a certain area is increased,
The electric wire W to be laid can be further densified. With the increase in the density, the size of the insulating substrate 11 can be reduced.

Further, according to the electric wire connection structure of this embodiment, since the slots 18 of the multi-stage press-connecting terminal 13B are formed to be long with the same width, the adjacent electric wires W, W connected to one slot 18 are formed. The distance d1 between them (see FIG. 2) can be made variable, and the distance d2 between the electric wire W and the insulating substrate 11 can be varied.
Can be made variable, and a three-dimensionally free wiring path can be formed on the upper side of the insulating substrate 11, and the variety of circuits that can be formed on one insulating substrate 11 is expanded.

The slot 1 of the multi-stage press contact terminal 13B
8 are formed with the same width, three wires W can be connected at the same time without the distance d1 between the adjacent wires W connected to one slot 18 and further high-density wiring structure. Can also be realized. The height of the press contact portion 19 and the depth of the slot 18 of the multi-stage press contact terminal 13B are not limited to the example of the multi-stage press contact terminal 13B of the present embodiment. It may be a multi-stage press contact terminal 13B.

Further, according to the electric wire connection structure of this embodiment, if the electric wire W is press-fitted and connected only to the lower side of the multi-stage press-connecting terminal 13B and the upper side is left open, the vacant seats are assembled after the wiring board 10 is assembled. An optional circuit can be easily added by using the upper stage.

Also, since the step 17 which does not interfere with the upper electric wire W is provided in the electric wire locking portion 14, the upper electric wire W can be bent in the plane direction of the insulating substrate 11 and laid. The degree of freedom of the line can be further increased.

If a pair of press contact terminals 13A, 13B having different press contact portions 19, 19 are used, the insulating substrate 11
It is also possible to wire the wires W, W that are not connected to each other in exactly the same path when viewed from above and below in multiple stages. In such a wiring structure, the wires W, W are wired at the highest density. can do.

The electric wire connection structure of the present invention is not limited to the electric wire connection structure of the wiring board 10 described above. For example, the electric wire W may be wired on an insulating substrate such as an upper case or a lower case of an electric connection box. The connecting member protrudes from one surface of the insulating substrate, and an electric wire connecting structure for connecting an electric wire to the connecting member is also included.

Further, the connecting member of the present invention is not limited to the above-mentioned press-contact terminal 13B, and for example, the bus bar 2 shown in FIG.
A plurality of slots 22a, each of which can be connected in multiple stages from the top toward the base end side thereof, with a plurality of electric wires W having the same diameter formed in a tab portion 22 having a bent front end portion, are formed in a long shape with the same width. It should be good.

[0028]

According to the wire connecting structure of the first aspect of the present invention, since the connecting member capable of connecting a plurality of wires of the same diameter in multiple stages is used, the wires of the same diameter are wired in multiple stages on the insulating substrate. be able to. Therefore, it is possible to increase the number of electric wires that can be laid on the insulating substrate having a certain area, and to lay electric wires at a higher density. As the density of the electric wires increases, the size of the insulating substrate can be reduced. In addition, since the slots are formed to have the same width, the distance between adjacent wires connected in the slot can be made variable, and the distance between the wires connected in the slot and the insulating substrate can also be made variable.
It is possible to form an extremely free wiring path three-dimensionally on the insulating substrate.

According to the second aspect of the present invention, since the connection member is a press contact terminal, the protruding position of the connection member protruding from one surface of the insulating substrate can be freely selected. More often.

According to the third aspect of the present invention, since the connection member is the tab portion of the bus bar, the projecting position of the tab portion can be determined in advance in the wiring board manufacturing process, which is suitable for lot production.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example in which the electric wire connection structure of the present invention is applied to a wiring board, (a) is a front view of the wiring board, and (b)
(A) is sectional drawing which follows the BB line | wire in (a).

FIG. 2 is a perspective view showing a main part of the electric wire connection structure of FIG. 1;

FIG. 3 is a perspective view showing another form of connection member (bus bar).

4A and 4B are diagrams showing a conventional example of an electric wire connection structure of a wiring board, wherein FIG. 4A is a front view of the wiring board, and FIG. 4B is a cross-sectional view taken along line AA in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Insulation board 13 Pressure contact terminal (connection member) 18 Slot of pressure contact terminal 20 Slot of busbar 21 Busbar 22 Tab part (connection member) W Electric wire

Claims (3)

[Claims] 1. An electric wire connection structure in which a plurality of connection members electrically connectable to an electric wire are protruded from one surface of an insulating substrate and an electric wire is connected to the connection member. An electric wire connection structure, characterized in that slots capable of connecting electric wires of the same diameter in multiple stages from above are formed in the same width and long. 2. The electric wire connection structure according to claim 1, wherein the connection member is a press contact terminal that can be mounted on the insulating substrate. 3. The electric wire connection structure according to claim 1, wherein the connection member is a tab portion formed by bending a distal end portion of a bus bar provided on the insulating substrate.