JPH11299050A - Wiring structure of electrical junction box - Google Patents

Abstract

(57) [Problem] To surely prevent a short circuit accident or the like by adding a simple member. SOLUTION: In the wiring structure of the electric junction box of the present invention, a large number of coated electric wires 6 are connected to a wiring board 1 by wiring, and main press-connecting terminal portions 2 are arranged on both sides of the wiring board 1 so as to face each other. And a wiring boss 7 for bending or linearly guiding the insulated wire in each portion, and electrically connecting the end of the insulated wire 6 to the insulated wire terminals 2 and 3. is there. The end of the other covered wire 6B is close to one covered wire 6A of the covered wire 6, and between the covered wire 6A and the end of the covered wire 6B, A boss 10 for preventing abrasion is provided upright.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric junction box mounted on a vehicle such as an automobile and mounted with a plurality of electric parts such as relays and fuses. The present invention relates to a wiring structure of an electric connection box provided.

[0002]

2. Description of the Related Art Recently, various types of control devices are mounted on vehicles such as automobiles, and a large number of electric components are connected via wire harnesses, and electric circuits for transmitting and receiving signals between the electric components and supplying electric power are provided. Are intensively interconnected. Then, this concentrated arrangement is connected to the junction box (J /
B), a fuse box, a relay box, or an electric connection box in which these are integrally integrated.

This electric junction box is made of a synthetic resin injection-molded article. A plurality of wiring boards having various conductive patterns are stacked and housed in an under cover, and a main cover is fitted thereon. The connector is connected to external wiring through various connectors formed on the surface of the main cover, and each connector is connected to the wiring board on the inside.

A press contact terminal portion and a boss portion are formed on the wiring board in a predetermined pattern, so that a large number of electric wires are pressed between the press contact terminal portions and are hooked on the boss portion to be bent in a predetermined direction. I have.

On both long sides of the conventional wiring board 1 shown in FIG. 3, long main press contact terminals 2 are formed so as to protrude, and a plurality of short press contact terminals 2 are provided between the press contact terminals 2. The intermediate pressure contact terminal portion 3 is formed so as to protrude vertically or horizontally. Ends or intermediate positions of a large number of covered electric wires 6 are fitted into press contact grooves 4 (see enlarged views in the circles) formed in the press contact terminals 2 and 3, and are connected by press contact blades 5. That is, at the same time that the covered electric wire 6 is fixed on the wiring board 1, the covering portion is broken by the press contact blade 5 and electrically connected to a conductive pattern (not shown) formed on the back side of each of the press contact terminals 2 and 3. It is a structure to do.

Further, the wiring of each coated electric wire 6 is not necessarily wired linearly in the corresponding press contact groove 4 of the press contact terminals 2 on both sides, but may be fixed to the intermediate press contact terminal 3 at an intermediate position. , And is fixed with the intermediate pressure contact terminal 3 as a terminal. Also, there are various wiring patterns such as being fixed to the intermediate press-connecting terminal portions 3 arranged on the side surface of the wiring board 1 and arranged in the vertical direction. Therefore, each covered electric wire 6 is bent once or twice or more in the vertical and horizontal directions.

In this case, in order to prevent the wiring from being complicated and to maintain the wiring shape, the wiring boss 7 is provided at various places on the wiring board 1.
Is erected. Some wires retain the wiring shape as shown in the figure by hooking an electric wire on the boss portion 7 to change the direction and bend it in a predetermined direction, or by hitting the side surface of the covered electric wire 6 to restrict the movement.

[0008]

However, in the above-mentioned conventional wiring structure, the coated wire 6A whose terminal is fixed to the intermediate press-connecting terminal portion 3 and the coated wire 6B which is wired orthogonally in the vicinity of the wire. When the free end of the coated electric wire 6A is long when the wiring pattern becomes as follows, the coated electric wires 6A and 6B are swung by the vibration in the direction of the arrow in the drawing. That is, since each of the coated electric wires 6A and 6B itself has flexibility and the vibration of the automobile is inevitable,
The free end is swung right and left or up and down.

As a result, the core wire exposed at the free end of the coated electric wire 6A repeatedly comes into contact with the outer periphery of the coated electric wire 6B and is rubbed. As a result, there is a problem that the middle of the core wire is exposed and the electric wires 6A and 6B come into electrical contact with each other to cause a short circuit accident.

An object of the present invention is to solve the above-mentioned problems, and to provide a wiring structure of an electric junction box which can reliably prevent a short circuit accident or the like by adding a simple member.

[0011]

SUMMARY OF THE INVENTION The object of the present invention is to dispose a main press contact terminal having a plurality of press contact blades on a wiring board provided in a box body and to provide one or more press contact terminals. An intermediate press-connecting terminal portion provided with a blade is arranged, a plurality of boss portions for wiring that bend or linearly guide the insulated wire are provided at predetermined positions, and a large number of insulated wires are connected and wired to a predetermined position on the wiring board. In the wiring structure of the electric junction box forming a circuit, a boss for preventing friction between the two coated wires is provided at a position where the end portion of the other coated wire is close to one of the coated wires connected and wired on the wiring board. The problem can be solved by the wiring structure of the electric junction box, in which the parts are provided.

In the wiring structure of the electric junction box having the above-described structure, a boss portion for preventing the two covered wires from rubbing each other is provided at a position where the end portion of the other covered wire is close to the one covered wire. . That is, since the boss is interposed between the one covered wire and the other covered wire end, the direct contact with the other covered wire end due to the deflection of one covered wire can be reliably prevented. Of the coated electric wire can also be prevented.

Further, in the wiring structure of the electric junction box, if the wiring boss preferably has the boss for preventing friction, it is not necessary to provide a dedicated boss for preventing friction. Cost increase in manufacturing can be suppressed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the wiring structure of an electric junction box according to the present invention will be described below in detail with reference to FIGS. It is to be noted that, except for the main part of the present invention, the wiring structure is substantially the same as that of the conventional wiring structure.

As shown in FIG. 1 and FIG.
Of the above, the rubbing is prevented on the wiring board 1 between the one covered wire 6A whose end is fixed to the intermediate press-connecting terminal portion 3 and the other covered wire 6B which is wired orthogonally thereto. Boss 10 is provided upright. The boss 10 prevents the covered portion of the covered electric wire 6A from directly contacting the core end of the covered electric wire 6B, and the boss 10 presses the covered electric wire 6A so that the covered electric wire 6A is vertically moved in the drawing. Shaking in the direction is also prevented.

An under cover 1 is provided on the lower surface of the wiring board 1.
2, the top of the boss 10 and the top of the wiring boss 7 (not shown) are in contact with the inner bottom surface of the undercover 12. This prevents the covered electric wire 6A from coming off the boss 10 due to vibration or the like.

In this embodiment, the boss portion 10 for preventing abrasion is required at two locations. By adding two boss portions 10 at the time of molding the wiring board 1, repeated contact between the wires can be achieved. Exposure of the core wire and a short circuit accident and the like resulting therefrom can be prevented beforehand. Further, by providing the boss portion 10 for preventing abrasion, the possibility of contact short-circuit is reduced, so that the mounting density of the covered electric wires can be increased and the size of the wiring board can be reduced.

If the wiring boss 7 is arranged to have a function of preventing abrasion, one boss has a wiring function and a function of preventing abrasion, and a dedicated boss for preventing abrasion is provided. It is not necessary to provide such a structure, and it is possible to suppress an increase in manufacturing cost.

As described above, in the wiring structure of the electric junction box of the present embodiment, one covered electric wire 6A to be connected and wired on the wiring board 1 and the other covered electric wire 6B close to the covered electric wire 6A. A boss portion 10 for preventing friction between the two covered electric wires is provided between the boss portion 10 and the end portion of the electric wire. Therefore, by adding a simple additional structure, it is possible to reliably prevent direct contact with the end of the other insulated wire 6B due to deflection of the one insulated wire 6A, and to prevent the one insulated wire 6A from oscillating.
Vibration or the like due to vibrations can be prevented. Further, the mounting density of the covered electric wires 6 can be increased, and the size of the wiring board 1 itself can be reduced.

The wiring structure of the electric junction box of the present invention is as follows.
It is needless to say that the present invention is not limited to the above embodiment, but can be applied to other forms. For example, in the present embodiment, the column-shaped boss is used, but an elliptical column or a semi-column can be used, and a prism can be applied by taking a corner portion.

[0021]

As described above, according to the wiring structure of the electric junction box of the present invention, one covered electric wire connected and wired on the wiring board and the other covered electric wire adjacent to the covered electric wire are formed. A boss portion is provided between the end portions to prevent friction between the coated wires. Therefore, it is possible to reliably prevent direct contact with the end of the other coated electric wire due to deflection of one coated electric wire, and also possible to prevent deflection or the like due to vibration of one coated electric wire. Therefore, it is possible to obtain an electric junction box having excellent durability and high reliability.

If the wiring boss also serves as a boss for preventing friction, it is not necessary to provide a dedicated boss for preventing friction, thereby suppressing an increase in manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a wiring structure of an electric junction box of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a plan view showing a wiring structure of a conventional electric junction box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiring board 2 Main press contact terminal part 3 Intermediate press contact terminal part 4 Press contact groove 5 Press contact blade 6 Insulated wire 6A One insulated wire 6B The other insulated wire 7 Wiring boss 10 Scratch prevention boss

Claims (2)

[Claims] 1. A main press terminal having a plurality of press contact blades is disposed on a wiring board provided in a box body,
An intermediate press-connecting terminal portion having one or more press-connecting blades is arranged, a plurality of wiring bosses for bending or linearly guiding the covered electric wire are provided at predetermined positions, and a large number of covered electric wires are connected and wired. In the wiring structure of an electric junction box forming a predetermined circuit on the wiring board, the two coated wires are located at a position where the end of the other coated wire is close to one of the coated wires connected and wired on the wiring board. A boss portion for preventing rubbing of the electric connection box. 2. The wiring structure of an electric connection box according to claim 1, wherein said boss portion for wiring also serves as said boss portion for preventing abrasion.