JP2000231966A - Electrical junction box - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the operability of jigs and tools so that electric parts can be detached without damage, etc., even if the jigs are inserted through slits, internal damage etc. Provide an electrical junction box that can be reliably prevented. SOLUTION: An electric connection box 21 provided with a (relay) housing 3 including a housing main body 6 and an arm 7, wherein a rib 22 and a groove for guiding a jig 10 for detaching the inserted relay 4 are provided. 23 and 24 were provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is improved so as not to damage a base wall of a main body or a wiring board when detaching an electric component or a connector inserted using a jig. Electrical connection box.

[0002]

2. Description of the Related Art FIG. 6 shows a relay housing 3 provided on a base wall 2 of a case of an electric junction box 1 and a relay 4 inserted into the relay housing 3. The relay housing 3 includes a housing main body 6 provided near a slit 5 (see FIG. 8) formed in the main body base wall 2 and an arm 7 provided on the distal end side of the housing main body 6 on the slit 5 side. It is configured. The housing main body 6 accommodates a terminal (not shown) in a terminal accommodating chamber 6a inside the housing main body 6, and stands upright on the main body base wall 2 in a form surrounding three sides of the slit 5 (see FIG. 8). An enclosure wall 8 is formed around the housing body 6.

The arm 7 has a locking hole 7a formed at an intermediate portion thereof, and has a substantially L-shaped jig 10 (FIGS. 8 and 9) to be described later at a distal end located at the opening of the slit 5. As shown in FIG. (See FIG. 7) is formed. The arm 7 has flexibility at its base end so that its tip is close to the housing body 6 side.

[0004] Inside the electric junction box 1 facing through the slit 5, a wiring board 9 in which a plurality of bus bars (not shown) are arranged in a pattern is provided in a stacked state (to be a stacked wiring board).

The relay 4 is composed of a main body 4a and a connecting portion 4b. Inside the hood 4c of the connecting portion 4b, there are provided three (there are two overlapping terminals) 4d.
Is provided. On the inner wall of the hood 4c, a locking projection 4e that fits into the locking hole 7a of the arm 7 is formed.

In the above configuration, when the relay 4 is inserted into the relay housing 3 as shown by the arrow in FIG. 6, the inner wall of the hood 4c slides on the outer periphery of the relay housing 3 and the terminal 4d
At the same time, the engaging projections 4e and the engaging holes 7a are engaged with each other, and the fitting state as shown in FIG. 7 is established, so that the relay 4 as an electric component is electrically connected to the electric connection box 1. Will be connected. When the need for maintenance or the like arises, the jig 10 (see FIGS. 8 and 9) is used to press and bend the arm 7 in the direction of the arrow, so that the locking projection 4 is formed.
e is disengaged from the locking hole 7a (see FIG. 6), and the relay 4 can be easily detached.

[0007]

In the prior art, when the relay 4 is detached from the relay housing 3, the state shown in FIG. It is easy to slip into the gap between the slit 5 and the arm 7 (the gap existing in the width direction of the arm 7) by sliding on the portion 7b, and there is a possibility that the arm 7 or the like may be damaged or damaged.

Further, as shown in FIG. 9, there is a possibility that the jig 10 is erroneously inserted into the slit 5 (the probability that the jig 10 slips from the contact portion 7b is high). In some cases, the jig 10 may come into contact with a bus bar (not shown) arranged on the wiring board 9 to cause damage.

Further, when the above-mentioned concerns arise,
As a matter of course, the work efficiency will be reduced.

[0010] The present invention has been made in view of the above-mentioned circumstances, and enhances the operability of a jig and tool so that an electric component or the like can be detached without damage, and the jig is temporarily inserted through a slit. An object of the present invention is to provide an electric junction box that can reliably prevent internal damage and the like even if it is damaged.

[0011]

According to a first aspect of the present invention, there is provided an electric connection box which is inserted and attached to a housing body provided near a slit formed in a base wall of the main body. A contact part with which a jig for detaching the electrical component or the connector is formed, and an arm which is flexible and is disposed on the slit side of the housing main body. An electric connection box, wherein guide means for guiding the jig and tool is provided on the main body base wall on the opening edge side of the slit facing the contact portion.

According to a second aspect of the present invention, in the electrical junction box according to the first aspect, the guide means includes a rib provided upright in the vicinity of the slit and an end of the rib extending from the end of the main body. And a groove formed toward the base wall.

According to a third aspect of the present invention, in the electrical junction box according to the first aspect, the guide means includes a rib erected near the slit and the main body base around the housing. It is characterized by comprising an enclosing wall provided on the wall and a groove formed from these ends toward the main body base wall.

According to a fourth aspect of the present invention, there is provided the electrical junction box according to any one of the first to third aspects, wherein an opening is formed in the wiring board or the laminated wiring board facing through the slit. It is characterized by:

According to the first aspect of the present invention, it is possible to operate the tool in a normal direction using the guide means. Further, by using the guide means, it is possible to detach the electric parts and the like in a stable state even when the jig is operated. That is, since the operation position of the jig is fixed by the guide means, the jig does not slip into the gap between the slit and the arm due to the sliding of the abutting portion as in the related art. It is possible to prevent the arm and the like from being damaged or damaged by the jig and the tool, as well as to contribute to the improvement of the height. Therefore, it is possible to provide an electric connection box capable of improving the operability of the jig and the tool and detaching the electric component without any damage.

According to the second aspect of the present invention, the jig and tool need only be made to follow the groove, and the jig is guided by the groove. There is no slipping toward the gap or swinging left and right, for example. Therefore, since the operation of the jig and the tool is stabilized, the operability of the jig and the tool can be improved as compared with the related art.

According to the third aspect of the present invention, the jig and tool need only be made to follow the groove, and since the jig and tool are guided by the two grooves, the stability is good and the operation can be performed during operation. The jig does not slide toward the gap between the slit and the arm or swing, for example, from side to side. Therefore, since the operation of the jig and the tool is stabilized, the operability of the jig and the tool can be improved as compared with the related art.

According to the fourth aspect of the present invention, it is possible to avoid contact of the jig with the wiring board or the laminated wiring board. Therefore, even if the jig is inserted through the slit, it is possible to provide an electric connection box capable of reliably preventing internal damage and the like.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the electric junction box of the present invention. FIG. 2 is a diagram of FIG.
FIG. 4 is a cross-sectional view taken along a line A. Note that the same reference numerals are given to portions having basically the same configuration as the conventional example, and detailed description thereof will be omitted.

In FIGS. 1 and 2, reference numeral 21 denotes an electric connection box mounted on a vehicle such as an automobile. Equivalent to the housing described in the claims, not limited to the housing for the relay,
It is intended for a housing into which various electric components and connectors of a wire harness can be inserted.
An enclosure wall 8 is formed around the relay housing 3.

The relay housing 3 is composed of a housing body 6 erected on the opening edge of the slit 5 and a flexible arm 7 provided on the side of the slit 5 at the front end of the housing body 6. A substantially L-shaped contact portion 7b is formed at the tip of the arm 7.

The above is almost the same configuration as the conventional example.
In an embodiment of the present invention, a guide means having the following configuration is added.

The guide means includes a substantially prismatic rib 22 erected on the main body base wall 2 on the opening edge side of the slit 5 facing the contact portion 7b, and a tip of the rib 22 (described in the claims). And a groove 23, 24 formed at the end of the surrounding wall 8 facing the opening edge, and the jig 10 (FIGS. 3 and 4) through the groove 23, 24. 4 (see FIG. 4) can be guided in the normal operation direction.

The grooves 23, 24 are formed so as to be recessed toward the main body base wall 2, and the bottoms thereof are inclined as shown in FIG. 2, so that the bottoms of the grooves 23, 24 extend from the contact portion 7b. It is formed so as to be straight.

The inclination angles of the grooves 23 and 24 are set to
However, the angle of inclination is not limited to about 45 °. The depths of the grooves 23 and 24 are sufficient to guide the jig 10 (see FIGS. 3 and 4), and the width is the tip of the jig 10 (see FIGS. 3 and 4). Is formed in a range that does not easily swing.

On the other hand, in one embodiment of the present invention,
A laminated wiring board 26 having an opening 25 in addition to the guide means is disposed inside the electric connection box 21 (see FIG. 2).

The laminated wiring board 26 is formed by laminating wiring boards in each of which a plurality of bus bars (not shown) are arranged, and the openings 25 are formed in the respective wiring boards at the same positions. Opening 2
5 is open at a position facing through the slit 5. still,
Naturally, the exposed portions of the bus bars (not shown) in the wiring board are provided with measures such as waterproofing and dustproofing. Further, the opening shape of the opening 25 is not limited to the illustrated rectangular shape but may be a round shape. There is also an advantage that the weight can be reduced by the opening 25.

In the above configuration, as shown in FIGS. 3 and 4, after the relay 4 is inserted into the relay housing 3 and the relay 4 is detached, the jig 10 is moved along the guide means. To perform the detaching operation of the electric parts and the like. That is, when the jig 10 is moved along the guide means, the unlocking rod 10 a of the jig 10 is guided by the grooves 23 and 24. As a result, the abutting portion 7b can be pressed in a stable state without the tool 10 swinging. When the arm 7 is sufficiently bent, the relay 4 can be detached. When the relay 4 is pulled out of the relay housing 3, the detachment operation is completed.

Incidentally, as shown in FIG.
Is accidentally inserted into the electrical junction box 21 even if the opening 25
Is formed, the opening 25 can reliably prevent damage to a bus bar (not shown) or the like.

As described above with reference to FIGS. 1 to 5, the electric connection box is provided with the guide means for guiding the jig and tool for detaching the inserted relay 4 and the like, and the opening 25. The jigs and tools can be operated in a normal direction by the guide means. Further, even if anyone operates the jig, the detaching operation can be performed in a stable state. As a result, the arm and the like are not damaged or damaged by the conventional jigs and tools. next,
With regard to the opening 25, the opening 25 can reliably prevent internal damage and the like as in the prior art.

Accordingly, the operability of the jig and the tool can be enhanced, and the electric parts and the like can be detached without damage and the like, and even if the jig and the tool are inserted through the slit, the internal connection and the like can be reliably prevented. A box can be provided.

In addition, it is a matter of course that the present invention can be variously modified and implemented without departing from the gist of the present invention.

It is needless to say that the above effect can be sufficiently obtained even if the guide means has only the ribs 22 and the grooves 23.

[0034]

As described above, according to the first aspect of the present invention, an electric connection box is an electric connection box provided with a housing composed of a housing body and an arm, and is inserted and attached. Guide means for guiding jigs and tools for detaching electrical components or connectors
Using the guide means, the jig can be operated in a normal direction. Further, by using the guide means, it is possible to detach the electric parts and the like in a stable state regardless of who operates the jig. That is, since the operation position of the jig is fixed by the guide means, the jig does not slip into the gap between the slit and the arm due to the sliding of the abutting portion as in the related art. It is possible to prevent the arm and the like from being damaged or damaged by the jigs and tools as well as to contribute to the improvement of the arm. Therefore, there is an effect that it is possible to provide an electric junction box capable of detaching an electric component without damage or the like by improving operability with respect to a tool.

According to the second aspect of the present invention, the guide means is constituted by the rib erected near the slit and the groove formed from the end of the rib toward the base wall of the main body. Therefore, it is only necessary to bring the jig and tool along the groove,
Further, since the jig is guided by the groove, the jig does not slip toward the gap between the slit and the arm or swing right and left during the operation. Therefore, since the operation of the jig and the tool is stabilized, the effect that the operability of the jig and the tool can be improved as compared with the related art is exerted.

According to the third aspect of the present invention, the guide means includes a rib standing upright in the vicinity of the slit, an enclosing wall disposed on the main body base wall around the housing, and a main body extending from these ends. Since it is composed of a groove formed toward the base wall, it is only necessary to bring the jig and tool along the groove,
Since the jig is guided by the two grooves, stability is good, and the jig does not slide toward the gap between the slit and the arm or swing right and left during operation. Therefore, since the operation of the jig and the tool is stabilized, the effect that the operability of the jig and the tool can be improved as compared with the related art is exerted.

According to the present invention, since the opening is formed in the wiring board or the laminated wiring board facing through the slit, the contact of the jig with the wiring board or the like is avoided. be able to. Therefore, even if the jig is inserted through the slit, an effect of being able to provide an electric junction box capable of reliably preventing internal damage or the like can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an electric junction box according to the present invention.

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

FIG. 3 is a plan view for explaining an operation for detaching an electric component or the like.

FIG. 4 is a cross-sectional view for explaining an operation for detaching an electric component or the like.

FIG. 5 is a cross-sectional view showing a state where the jig is temporarily inserted into the inside from the state of FIG. 4;

FIG. 6 is a cross-sectional view (excluding a relay) of a conventional electric connection box before a relay as an electric component is inserted.

FIG. 7 is a cross-sectional view (excluding the relay) showing a state where the relay is fitted from the state of FIG. 6;

FIG. 8 is a plan view showing a state when an electric component or the like is detached from an electric junction box of a conventional example.

FIG. 9 is a cross-sectional view showing a state when an electric component or the like is detached from an electric junction box of a conventional example.

[Explanation of symbols]

 2 Body base wall 3 Relay housing (housing) 5 Slit 6 Housing body 7 Arm 7b Contact part 8 Enclosure wall 10 Jig 21 Electric connection box 22 Rib (guide means) 23, 24 Groove (guide means) 25 Opening 26 Lamination Wiring board

Claims (4)

[Claims] An abutting portion is formed in which a housing body provided near a slit formed in a body base wall and an abutting portion abutting a jig for detaching an inserted electric component or connector are formed. And an arm disposed on the slit side of the housing main body, the electric connection box including a housing, wherein the main body base wall on the opening edge side of the slit facing the contact portion. An electric connection box, wherein guide means for guiding the jig and tool are provided. 2. The electrical junction box according to claim 1, wherein the guide means includes a rib erected near the slit and a groove formed from an end of the rib toward the main body base wall. Electrical junction box characterized by being done. 3. The electric junction box according to claim 1, wherein the guide means includes a rib provided upright in the vicinity of the slit, an enclosure wall provided on the main body base wall around the housing, and An electric junction box comprising: a groove formed from an end portion toward the main body base wall. 4. The electrical junction box according to claim 1, wherein an opening is formed in the wiring board or the laminated wiring board facing through the slit.