JPH10243528A - Insulation structure of wire arranging member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To curtail the number of parts, and reduce the cost, and improve the assembly property, by abolishing an electrically insulating wiring sheet. SOLUTION: In the structure of insulation between wire arranging members where a cable 20 is arranged on the side of the bust bar 12 of a wiring board 10 where a bus bar 12 is arranged through an insulating board 11, the insulating board 11 is provided with a projecting insulator 11a higher than the thickness of the bus bar 12, and a cable 20 is wired at this projecting insulator 11a. Moreover, the projecting insulator 11a is made of a rib 11a being projected integrally from the insulating board 11, thus the curtailment of the number of parts and the cost down are promoted further.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating structure between wiring members for preventing electric wires serving as wiring members housed in an electric junction box or the like and bus bars from coming into contact with each other.

[0002]

2. Description of the Related Art Hitherto, as shown in FIGS. 2 and 3, there is known an electric junction box containing a wiring board forming a predetermined electric circuit and electric wires laid on the wiring board.

An electric connection box 1 shown in FIGS. 2 and 3 includes an upper cover 2 made of a synthetic resin and a lower cover 3 fitted to the upper cover 2. A wiring board 10 and electric wires (routing members) 20 laid on the wiring board 10 are accommodated in the upper and lower covers 2 and 3.

The wiring board 10 includes a pair of insulating plates 11 and 11.
And three busbars (routing members) 12, 12, 12 arranged so as to sandwich the pair of insulating plates 11, 11. The electric wires 20 are routed to the busbar 12 at the lowermost layer (the uppermost side in the figure) via a wiring sheet 21 made of an electrically insulating synthetic resin material. This prevents the wiring members from contacting each other, that is, the bus bar 12 and the electric wire 20, and insulates them.

[0005]

However, in the conventional insulation structure between the wiring members, the bus bar 12 and the electric wire 2 are not provided.
The wire sheet 21 is indispensable between the bus bar 12 and the electric wire 20 in order to prevent the skin of the electric wire 20 from being damaged due to contact with the electric wire 20 and to prevent leakage. Was a factor.

In view of the above circumstances, the present invention provides an insulating structure between wiring members that can surely prevent contact between conductive wiring members without using an insulating member such as a wiring sheet. The purpose is to provide.

[0007]

According to a first aspect of the present invention, there is provided an insulating structure between wiring members, in which electric wires are arranged on a bus bar side of a wiring board having a bus bar arranged via an insulating plate.
The insulating plate is provided with a protruding insulating portion which is higher than the thickness of the bus bar, and the electric wire is laid on the protruding insulating portion.

In the insulating structure between the wiring members, the insulating member such as the wiring sheet can be eliminated, and the cost of parts and the cost of the mold can be reduced correspondingly.

According to a second aspect of the present invention, there is provided the insulating structure between the wiring members according to the first aspect, wherein the protruding insulating portion is constituted by a rib formed by integrally protruding from the insulating plate. .

[0010] In the insulating structure between the wiring members, the projecting insulating portion is a rib formed by integrally projecting the insulating plate, so that the number of parts and the cost can be further reduced.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. Also in this embodiment, an electric connection box is used as an example in which the insulating structure between the wiring members is applied,
Components corresponding to those in FIGS. 2 and 3 will be described with the same reference numerals.

FIG. 1 is a cross-sectional view of a main part of the electric junction box 1, and furthermore, a wiring board 10 and electric wires (routing members) laid on the wiring board 10 in the lower covers 2 and 3. 20).

The wiring board 10 includes a pair of insulating plates 11 and 11.
And three bus bars (routing members) 12, 12, 12 arranged so as to sandwich the pair of insulating plates 11, 11, and the bus bar of the uppermost layer (the lowermost side in the figure). An electric wire (routing member) 20 is wired on the 12 side. A plurality of ribs (protruding insulating portions) 11a, 1
Are integrally formed so as to protrude. Each of these ribs 11
a is formed so as to be higher than the thickness of the bus bar 12 of the uppermost layer.
It protrudes from 2a toward the electric wire 20 side. An electric wire 20 is laid on the tip side of each of the ribs 11a.

According to the insulating structure between the wiring members used in the electric junction box 1 according to the above-described embodiment, around the bus bar 12 wired on the insulating plate 11 adjacent to the wiring layer of the electric wire 20,
Since a plurality of ribs 11a that are taller than the thickness of the bus bar 12 are integrally formed and formed, and the electric wires 20 are laid on each of the ribs 11a, a gap is provided between the bus bar 12 and the electric wires 20. The bus bar 12 and the electric wire 20
Can be reliably prevented from coming into direct contact with. Therefore, the wiring sheet 21 made of an electrically insulating synthetic resin material, which is indispensable in the past, can be eliminated, and the cost of parts and the cost of the mold can be reduced accordingly.

Further, as described above, the ribs 11a are integrally formed on the insulating plate 11 adjacent to the wiring layer side of the electric wire 20, so that the projecting insulating portion between the bus bar 12 and the electric wire 20 can be formed very simply. Therefore, the number of parts can be reduced by that much, and the overall cost can be further reduced, and the workability of assembling the wiring board 10 and the electric wires 20 can be improved.

According to the above-mentioned embodiment, the rib as the protruding insulating portion is integrally formed on the insulating plate, but the protruding insulating portion separately formed on the insulating plate may be fixedly provided with an adhesive or the like. Good. In the above embodiment, the insulating structure between the wiring members is applied to an electric connection box such as a relay box or a branch connection box. However, it is needless to say that the insulating structure can be applied to other electric devices.

[0017]

As described above, according to the first aspect of the present invention, a protruding insulating portion is provided on the insulating plate of the wiring board to prevent contact between the bus bar and the electric wire. An insulating member such as a wiring sheet is unnecessary, and the cost of parts and the cost of a mold can be reduced.

According to the second aspect of the present invention, in addition to the effect of the first aspect, since the rib integrally formed on the insulating plate is used as the protruding insulating portion, it is easy to deform only a part of the shape of the insulating plate. With such a structure, insulation between the wiring members can be easily and reliably performed. In addition, the number of components can be reduced to further reduce the cost, and the workability of assembling the wiring board and the electric wires can be further improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an insulating structure between wiring members applied to an electric junction box according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a conventional electric junction box.

FIG. 3 is a cross-sectional view showing an insulating structure between wiring members applied to a conventional electric junction box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Wiring board 11 Insulating board 11a Rib (protruding insulating part) 12 Bus bar (routing member) 20 Electric wire (routing member)

Claims (2)

[Claims] 1. An insulating structure between wiring members in which electric wires are arranged on a bus bar side of a wiring board in which a bus bar is disposed via an insulating plate, wherein the insulating plate has a thickness higher than a thickness of the bus bar. An insulating structure between wiring members, wherein a protruding insulating portion is provided, and the electric wire is laid on the protruding insulating portion. 2. The insulating structure between wiring members according to claim 1, wherein the protruding insulating portion is constituted by a rib formed by integrally projecting from the insulating plate. Insulation structure.