JP2584267Y2 - Mounting device for electrical junction box - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device suitable for mounting an electric junction box such as a junction block or a fuse block on a vehicle such as an automobile.

[0002]

2. Description of the Related Art Conventionally, when an electric connection box is mounted on a vehicle, a bracket (also referred to as a flange) as an attachment portion is integrally formed with the box body, that is, the cover body, as shown in FIGS. (For example, Public Technical Report 90-16
936 and JP-A-2-83621).

[0003] That is, in FIG.
Are a main cover 51, a busbar assembly 52,
An under cover 53 is combined with a main part of a mold made of a plastic material, and three brackets 5 for attaching the electric junction box 50 to a vehicle are provided.
Nos. 4, 55, and 56 were made of the same plastic material integrally with the main cover 51 for the former two and the under cover 53 for the latter.

FIG. 11 shows an electrical connection box 60 of a type different from that of the previous example in an assembled state. In this case, the mounting brackets 64, 65 and 66 are all formed integrally with the main cover 61. ing. Note that FIG.
Here, one of the brackets has a different arrangement from the previous example.

[0005] Further, in FIG.
Are the main cover 71 and several busbar assemblies 7
2 and an under cover 73, and one mounting bracket 74 is provided integrally with the under cover 73. In FIG. 12, the main cover 71 uses the elastic deformation thereof to engage the lock portions 75 provided on both covers to form the under cover 73.
The mounting of the electrical junction box 70, which is a combined body, to the vehicle body is performed only by the bracket 74 integrated with the under cover 73. Thus, the main cover 71 is fixed irrespective of the attachment to the vehicle body.

Conventionally, the electric connection box is securely attached to the vehicle by the fixed bracket.

[0007]

However, since these conventional devices are mounted on the vehicle by a bracket fixed to the cover of the electric junction box, if the type is limited, the body variation of the vehicle is limited. There is a problem that it is extremely inconvenient.

On the other hand, on the vehicle side, the mounting bracket is likely to be changed due to a design change such as an accessory change, and in each case, it is required to supply an electric connection box having the changed bracket. However, there is a problem that the mold correction of the cover becomes large and the time and cost are restricted. For this reason, when using the same electrical junction box in other vehicles with different mounting positions, it is conceivable to prepare a number of covers, but in that case, the number of types increases and it is difficult to manage inventory etc. There is a point.

Further, in the conventional one, there is a problem that the strength of the mounting bracket is weak because the mounting bracket is also made of the same plastic material as the cover body.

Particularly, in FIG. 12, since the vehicle is mounted only on the bracket of the under cover, its strength is a problem.

Further, in FIG.
1 is a structure in which only the lock portion 75 is locked and fixed to the under cover 73 attached to the vehicle body by its elastic deformation, so that the lock portion is burdened and may be damaged.

In view of the above, the present invention increases the body variation by using the bracket of the electric junction box, that is, the flange member as a separate part, responds to a design change request immediately, facilitates management of inventory, etc., and An object of the present invention is to provide an electric junction box mounting device capable of improving the mounting strength.

Further, the present invention provides an electric connection box mounting apparatus which can increase the coupling strength of the electric connection box and prevent breakage of the lock portion by selecting the shape of a flange member or the like as a separate part. The purpose is to provide.

[0014]

According to the present invention, in order to achieve the above object, in claim 1, the bottom and both sides are fixed to the outer wall around the outer wall around the main body made of synthetic resin. A plurality of locking portions formed in a pair of upper and lower portions having the same shape with a standing wall protruding upward or downward and being detachably hooked and locked to the standing wall of the locking portion from above and below. A first portion having a shape and a second portion having a shape attached to the vehicle, and being locked to a locking portion having a predetermined positional relationship on the coupling strength and the vehicle mounting among the plurality of locking portions. This is a mounting device for an electric junction box comprising a metal plate flange member selected as described above.

[0015]

[0016]

According to the first aspect of the present invention, since the flange member is a separate part from the electric connection box, if the flange member is locked to the locking portion of the electric connection box which is in a mounting position relationship with the vehicle, the required electric connection box is required. Is completed. Therefore, the electric connection box may be attached to the vehicle via the flange member.
Since a large number of locking parts are provided, by appropriately selecting them, it is possible to increase the variation of the mounting body, respond to design changes quickly, and furthermore, it is easy to manage because there are few types. I can do it. Furthermore, mounting strength can be improved by making the flange member made of metal.

According to the second aspect of the present invention, the claws of the flange member are hooked on the upright wall, which is the locking portion of the upper and lower covers, and the fixed fixing portion having a gap is attached to the vehicle. The cover is integrally connected via a flange member, and the joined electric connection box is attached and fixed to the vehicle by the flange member with the upper and lower claws approaching by the reduced gap. Therefore, the coupling strength between the two covers is increased, and the strength of the mounting bracket portion is also increased, so that the fixed locking portions of the two covers, which should be provided appropriately, are not damaged.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. First, the configuration will be described based on the exploded view of FIG. The electric connection box 1 has several busbar assemblies 4 interposed between a main cover (upper cover) 2 which is a plastic-made lid having a substantially square cross section and a substantially symmetrical undercover (lower cover) 3. It is the same as the conventional one in that it has the contents such as electric parts, but there are many indents inwardly from the outer wall 7 which is the contour of the box on the entire circumference of both covers 2 and 3. In this recessed portion, a total of 12 pairs of locking portions (details will be described later) 5 of # 1 to # 12 (see also FIGS. 2 and 3)
a, 5b (5a and 5b are collectively referred to as locking portion 5)
And a flange member (bracket) made of a metal plate such as a mild steel material as a separate part, which is locked by the locking portion 5.
6 is completely different from the prior art.

FIG. 1 shows a state before the flange member 6 shown separately because it is an exploded view, and is the same in the plan view and the front view in FIGS. 2 and 3 of FIG. FIGS. 4 and 5, which are a plan view and a front view, respectively, show a state in which the flange member 6 is locked and attached to all twelve locking portions 5.

When the electric junction box 1 according to the above-described embodiment is mounted on a vehicle, it is not necessary to mount all the twelve flange members 6, for example, in the conventional mounting relation shown in FIG. Fig. 6
As shown in the figure, the flange member 6 may be attached to the corresponding positions # 3, # 5 and # 8.

As described above, according to the present embodiment, the mounting bracket can be selected from a number of positions to determine the mounting bracket, so that the number of body variations to be applied can be increased, design changes can be promptly made, and management can be facilitated by commonization. It is. In addition, since the flange member, which is the mounting bracket, is a separate component, even if the mold is modified, the cover needs to be modified on a small scale, and a large cost reduction and a shortened date can be achieved. Further, since the flange member 6 is made of a metal material different from the resin material of the two covers, the strength of the mounting bracket is increased, and the mounting rigidity can be improved.

Next, details of the locking portion 5 and the flange member 6 will be described with reference to FIGS.

The locking portion 5a has an upright wall 9a provided so as to protrude upward from the outer peripheral wall 7a of the main cover 2 in parallel with the upper peripheral wall 7a via a gap 8a (see FIG. 8). The vertical wall 9a is provided on both sides of the peripheral wall 7a.
and is supported by a rib 10a orthogonal to a. FIG. 7 shows an example in which a lightening portion 11a is provided in the middle of two adjacent standing walls 9a, and the two standing walls 9a constitute one upper locking portion 5a. In short, the standing wall 9a is the outer wall 7
The bottom and both sides are integrally formed with the main body 2 of the main cover, that is, the outer wall 7, and are open at the top.

Then, similarly, the peripheral wall 7 of the under cover 3
b, the lower locking portion 5b is symmetrically formed with the gap 8b,
b, ribs 10b, and lightening portions 11b.
Thus, one locking portion 5 is formed by the pair of locking portions 5a and 5b.
Is configured. The flange member 6 is, as shown in FIG.
A rectangular flat plate-shaped fixing portion 12 formed by bending a single mild steel plate material, and end plate portions 15a, 15a extending from the free end side of the fixing portion 12 and provided at right angles thereto. 1
5b and a total of four U-shaped cross-sections provided at the ends of the end plate portions 15a and 15b so as to face each other symmetrically in the vertical direction.
And two pawl portions 13a and 13b. Notches 16a, 16 between upper and lower claws 13a and 13b.
b is provided for each. And the upper pawl 13
a and 13a are hooked on the standing walls 9a and 9a of FIG.
), The interference with the rib 10a is avoided by the notch 16a, and similarly, the lower claws 13b, 13b are
b, 9b. Then, as shown in FIG. 8, the electric connection box 1 is fixed to the mounting bracket 17 of the vehicle by fixing the flange member 6 to the locking portion 5.
And bolt 18 through washer 20 to slot 1
4 and fastened with a nut 19, the attachment to the vehicle is completed.

In this case, the main cover 2 and the under cover 3 abut on the joint surface 21, and at the same time, the base portions 22 of the upright walls 9a and 9b abut each other. In addition, since the fixing portion 12 of the flange member 6 has a small gap 23 between the two laminated plates, the compressive force of the pawl portions 13a and 13b increases by the reduced gap 23 due to the bolt fastening, and The bonding strength between the covers 2 and 3 can be improved. As a result, the load on the lock member appropriately provided for fixing the main cover 2 and the under cover 3 is reduced, and as a result, damage due to the tightening can be eliminated. Further, according to the embodiment, since the pair of locking portions 5a and 5b are provided in the recessed portions from the outer wall 7 of the two covers 2 and 3, the strength of the locking portion itself can be improved and the outer wall can be formed. If it is provided over, it will not cause damage due to interference with other members.

[0026]

[Effects of the Invention] As described above, according to the present invention, it is possible to use a common electric connection box, thereby increasing the vehicle-side body variation, responding to design changes, and facilitating management. In addition to improving the strength of the electrical junction box and its mounting bracket,
The effect is obtained that the lock portion appropriately provided for the electric junction box combination can be prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an electric junction box showing one embodiment of the present invention.

FIG. 2 is a plan view showing a state where the electric junction box of FIG. 1 is combined with a state where a flange member is not mounted.

FIG. 3 is a front view showing a state in which the electric connection box of FIG. 1 is combined, showing a state in which a flange member is not mounted.

FIG. 4 is a plan view corresponding to FIG. 2, showing a state of attachment of all the flange members.

FIG. 5 is a front view corresponding to FIG. 3, showing a state of attachment of all the flange members.

FIG. 6 is a plan view corresponding to FIG. 2, showing a state in which a flange member is mounted at a position necessary for mounting the vehicle.

FIG. 7 is an enlarged perspective view showing a locking portion in a state where the upper and lower covers of FIG. 1 are combined.

8 is a cross-sectional view taken along the line VIII-VIII of FIG. 7, showing a vehicle mounted state after the flange member is locked.

FIG. 9 is an enlarged view of the flange member of FIG. 1 and is a perspective view in a different direction.

FIG. 10 is an exploded perspective view of a first example of a conventional electric junction box.

FIG. 11 is an assembled perspective view of a second example of a conventional electric junction box.

FIG. 12 is an exploded perspective view of a third example of a conventional electric junction box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connection box 2 Main cover (upper cover) 3 Under cover (lower cover) 4 Bus bar 5 Locking part 5a Locking part 5b Upper locking part 6 Flange member 7a, 7b Peripheral wall 8a, 8b Gap 9a, 9b Standing wall 10a, 10b Rib 12 Fixing part 13a, 13b Nail part

Claims (2)

(57) [Scope of request for utility model registration] 1. An electric junction box body made of a synthetic resin is provided with an upright wall protruding from an outer wall surrounding the main body and having a bottom and both sides fixed to the outer wall and projecting upward or downward. A plurality of locking portions formed in a shape, a first portion shaped to be detachably hooked and locked to the upright wall of the locking portion from above and below, and a second portion shaped to be attached to a vehicle, and And a metal plate flange member selected to be locked to a locking portion having a predetermined positional relationship in terms of coupling strength and vehicle mounting among the plurality of locking portions. The flange member has upper and lower claws as a first portion formed by bending a single steel plate and a fixed portion with a gap as a second portion, and the fixed portion is formed by bending the steel plate. 2. The mounting device for an electric junction box according to claim 1, wherein said gap is reduced when mounted on a vehicle, and a coupling compressive force due to approach of upper and lower claws is increased.