JP2004096949A - Electric connection box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an excellent electric connection box capable of easily preventing an electric functional component housed in the box from dropping off. <P>SOLUTION: The electric connection box 11 comprises an electric connection box body 13, a relay 21 housed in the electric connection box body, and an openable/closable lid body 15 for covering the relay 21 and the electric functional component such as a fuse. An elastic member 23 that press-energizes the top of the relay 21 is arranged between the internal face of the lid body 15 and the relay 21. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electric junction box for accommodating and holding electric functional components such as relays and fuses used in automobiles.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an electric connection box accommodates and holds electric functional components such as a relay and a fuse, and performs connection and branching between these electric functional components and a wire harness (for example, see Patent Document 1). .
The electric connection box 101 shown in FIG. 5 accommodates and holds the electric functional parts 121 such as the relay 121a and the fuse 121b, and performs connection and branching between the electric functional parts 121 and the wire harness 119. An accommodation space 117 is formed by the main body 113 and the lid 115 that removably covers the release portion on the upper part of the connection box main body 113.
The electric functional component 121 is mounted on a relay & fuse box 125 in the connection box main body 113.
[0003]
The lid 15 is configured such that locking pieces 115a provided on two opposing sides are locked by locking projections 113a of the connection box main body 113, thereby maintaining a sealed state. The wire harness 119 connected to the electric functional component 121 in the housing space 117 is moved out of the electric connection box 101 via a grommet 127 attached to a harness insertion hole provided on the wall surface of the connection box main body 113. Have been withdrawn.
[0004]
[Patent Document 1]
JP-A-10-84617 (page 3-4, FIG. 1)
[0005]
[Problems to be solved by the invention]
Incidentally, the electric functional parts 121 such as the relay 121a and the fuse 121b housed in the electric connection box 101 as described above may fall off from the relay & fuse box 125 due to the running vibration of the automobile or the like.
For example, the tall electric functional component 121 can be prevented from falling off by contacting the top with the inner surface of the lid 115, but the electric functional component 121 having a low height has no object to be pressed from above. However, there was a problem that dropping could not be prevented.
[0006]
It is also conceivable to provide a locking lock for each electric functional component 121 to prevent the electric functional component 121 from falling off. In this case, however, if the number of electric functional components 121 increases, the cost of the electric connection box 101 increases, and There is a problem that it takes time to attach and detach the locking lock.
[0007]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide a good electric junction box which can easily prevent a contained electric functional component from falling off.
[0008]
[Means for Solving the Problems]
The object of the present invention is an electric connection box including a connection box main body and an openable and closable lid that covers an electric functional component housed in the connection box main body,
The present invention is achieved by an electric connection box, wherein an elastic member that presses and urges a top portion of the electric functional component is provided between an inner surface of the lid and the electric functional component.
[0009]
According to the electric junction box having the above configuration, when the lid is closed, the elastic member provided between the inner surface of the lid and the electric functional component presses and urges the top of the electric functional component.
Therefore, even if the electric connection box vibrates due to the running vibration of an automobile or the like to which the electric connection box is attached, the electric functional component can be prevented from coming off upward and falling out can be prevented.
[0010]
Preferably, the elastic member is composed of a plurality of plate-like members having a thickness corresponding to the height of the electric functional component divided into blocks of a predetermined height range.
In this case, when the lid is closed, each plate-shaped member having a thickness corresponding to the electric functional component, which is divided into blocks of a predetermined height range, presses and urges the top of the electric functional component.
Therefore, even for the electric functional components in the relatively high blocks and the electric functional components in the relatively low blocks, each flat member may press and urge the top with an appropriate pressing force. it can.
[0011]
Preferably, the elastic member is made of a material having good heat conductivity.
In this case, the heat generated in the electric functional component is transmitted to the lid through the elastic member having good heat conductivity, and is released to the outside of the electric connection box.
Thus, it is possible to prevent the electric functional component from falling off and to prevent heat generation of the electric functional component.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an electric connection box according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1 and FIG. 2, an electric connection box 11 according to an embodiment of the present invention is provided with a connection box main body 13 having a rectangular cross section with an open upper part, and provided at an opening of the connection box main body 13 so as to be openable and closable. And a cover 15 that covers the electrical functional components 24 such as the relay 21 and the fuse 22 housed in the connection box main body 13. The electric functional component 24 is attached to a relay & fuse box 25 in the connection box main body 13.
[0013]
The lid 15 is detachable from the connection box main body 13 by a lock means 16, and is sealed so that moisture does not enter the inside of the electric connection box 11.
An elastic member 23 is provided between the inner surface of the lid 15 and the relay 21 to press and urge the top of the relay 21.
[0014]
The elastic member 23 has one surface (upper surface in FIG. 1) in contact with the inner surface of the lid 15 of the electric connection box 11 and the other surface (lower surface in FIG. 1) when the lid 15 is closed. Presses against the top of the relay 21 and contracts, and presses and biases the relay 21 by the reaction force. This prevents the relay 21 from moving upward.
As shown in FIGS. 2 and 3, the elastic member 23 may be a single flat plate having a shape covering the entire electric functional component 24 such as the relay 21.
[0015]
In this case, the thickness of the elastic member 23 is set so as to be able to press at least the top of the relay 21 which is the lowest.
Note that a portion facing the electrical functional component 24 that is unlikely to come off like the fuse 22 or a portion where the electrical functional component 24 is not provided may be appropriately formed so as to be notched, and is not limited to a rectangular shape.
[0016]
As the material of the elastic member 23, rubber, resin, or the like can be considered. It is convenient to attach the elastic member 23 by attaching it to the inner surface of the lid 15 with a double-sided adhesive tape, an adhesive, or the like, or by locking it with a locking projection provided on the inner surface of the lid 15. The cover 15 may be provided independently of the electric connection box main body 13, and may be sandwiched between the cover 15 and the relay 21 when the cover 15 is closed.
[0017]
That is, as shown in FIG. 3, the elastic member 23 is not compressed when the lid 15 is opened, and has a uniform thickness.
On the other hand, as shown in FIG. 1, when the lid 15 is closed, the elastic member 23 is greatly compressed at a position corresponding to the relay 21 having a high height, and corresponds to the relay 21 having a low height. The position will be slightly compressed.
Therefore, even when the height of each relay 21 is different, the top can be pressed and urged by the elastic member 23 when the lid 15 is closed.
[0018]
That is, according to the electrical junction box 11 of the present embodiment, when the lid 15 is closed, the elastic member 23 provided between the inner surface of the lid 15 and the relay 21 is housed in the electrical junction box 11. The relay 21 is pressed and urged.
Therefore, even if the electric connection box 11 vibrates due to the running vibration of an automobile or the like to which the electric connection box 11 is attached, the relay 21 can be prevented from coming off upward and falling out can be prevented.
[0019]
Further, the above-mentioned elastic member 23 is desirably made of a material having good heat conductivity. In this case, the elastic member 23 in contact with the top of the relay 21 allows the heat generated in the relay 21 to escape to the lid 15 and radiate the heat to the outside of the electrical junction box 11, so that the relay 21 can be cooled.
[0020]
In addition, the configuration of the connection box main body, the electric functional component, the lid, the elastic member, and the like in the electric connection box of the present invention is not limited to the configuration of the electric connection box 11 in the above-described embodiment, and the purpose of the present invention. Can take various forms based on the
For example, in the above-described embodiment, the case where one flat elastic member 23 is used has been described. However, as in the case of the electric connection box 31 shown in FIG. Elastic members 23a, 23b, 23c, 23d consisting of a plurality of flat members having different thicknesses according to the heights of the relays 21a, 21b, 21c, 21d can also be used.
Here, for example, the heights of the relays 21a in the same block are the same or slightly different. For example, the heights of the relays 21a and 21b between different blocks are different from each other by a predetermined height range or more. .
[0021]
In this case, when the lid 15 is closed, each of the elastic members 23a, 23b, 23c and 23d having a thickness corresponding to the relays 21a, 21b, 21c and 21d divided into blocks of a predetermined height range is formed. , Respectively, to urge the tops of the relays 21a, 21b, 21c, 21d.
Therefore, for example, for the relay 21a in a relatively high block and the relay 21b in a relatively low block, the respective elastic members 23a and 23b press and urge the respective tops with an appropriate pressing force. Can be.
[0022]
That is, when the heights of the relays 21a, 21b, 21c, 21d in each block are different from each other by a predetermined height range or more, when an attempt is made to press and urge with one elastic member having the same thickness, for example, Although the top of the lowest relay 21b may not be sufficiently pressed or the top of the highest relay 21a may be pressed too hard, the relays 21a and 21b divided into blocks for each predetermined height range may be used. , 21c, 21d can be prevented by pressing and biasing with elastic members 23a, 23b, 23c, 23d having different thicknesses.
In this case, it is preferable to attach each of the elastic members 23a, 23b, 23c, and 23d to the inner surface of the lid 15.
[0023]
【The invention's effect】
As described above, according to the electrical junction box of the present invention, when the lid is closed, the elastic member provided between the inner surface of the lid and the electrical functional component presses the top of the electrical functional component. Energize.
Therefore, even if the electric connection box vibrates due to the running vibration of an automobile or the like to which the electric connection box is attached, the electric functional component can be prevented from coming off upward and falling out can be prevented.
[0024]
When the elastic member is made of a material having good heat conductivity, heat generated in the electric functional component is transmitted to the lid through the elastic member having good heat conductivity, and is released to the outside of the electric connection box. Therefore, heat generation of the electric functional component can be prevented.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view of an electric junction box according to an embodiment of the present invention.
FIG. 2 is a partially cutaway plan view of the electric junction box shown in FIG.
FIG. 3 is a partially broken front view showing a state where a lid of the electric connection box shown in FIG. 1 is opened.
FIG. 4 is a partially broken plan view of an electric junction box according to another embodiment of the present invention.
FIG. 5 is a perspective view showing a conventional electric junction box.
[Explanation of symbols]
11 Electrical Connection Box 13 Connection Box Main Body 15 Lid 23 Elastic Member 21 Relay (Electrical Functional Parts)

Claims (3)

An electrical connection box comprising a connection box main body and an openable and closable lid for covering the electric functional component housed in the connection box main body,
An electric connection box, wherein an elastic member for urging the top of the electric functional component is provided between the inner surface of the lid and the electric functional component. 2. The electric device according to claim 1, wherein the elastic member includes a plurality of flat members having a thickness corresponding to the height of the electric functional component divided into blocks in a predetermined height range. 3. Connection box. The electrical junction box according to claim 1, wherein the elastic member is made of a material having good heat conductivity.

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