Housing and cover

Abstract

To provide a housing which can facilitate closing operation of a cover and inhibit removal of the cover, and to provide the cover.SOLUTION: A fuse cover 4 covers a fuse unit 3 attached to a battery 2. The fuse cover 4 has: a cover body 421 which covers the battery 2; and a protection wall 422 which is erected from the cover body 421 to the battery 2 and contacts with the battery 2 on its apical surface. The protection wall 422 is formed by a plastic foam. The protection wall 422 is provided with a hollow part 422A.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a housing and a cover. [Background technology]

[0002] As a cover provided on a housing, there is a cover body that covers the housing body, and a protective wall that stands upright from the cover body, with the tip surface of the protective wall being in contact with the housing body. Also, a cover that is made of a foam has been proposed (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-7688 A Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional covers, the protective wall made of foam is compressed when the cover is attached to the housing body, generating a repulsive force (restoring force) from the protective wall. This repulsive force requires force to close the cover, making it difficult to close the cover. In addition, after the cover is closed, the repulsive force is constantly acting, which causes the cover to easily come off.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a housing and a cover that facilitates the closing operation of the cover and prevents the cover from coming off. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the housing according to the present invention has the following features. A housing body, a cover including a cover body that covers the housing body, and a protective wall that stands from the cover body toward the housing body and has a tip surface that contacts the housing body; The protective wall is made of an elastic material. A housing, The protective wall is provided with a hollow portion. It is a casing.

[0007] In order to achieve the above-mentioned object, the cover according to the present invention has the following features. A cover body that covers the housing body; a protective wall extending from the cover body toward the housing body and having a tip surface in contact with the housing body; The protective wall is made of an elastic material. A cover, The protective wall is provided with a hollow portion. It's a cover. Effect of the Invention

[0008] The housing and cover according to the present invention have the advantage that the operation of attaching the cover is simplified and the cover can be prevented from coming off after it is attached.

[0009] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following description of the embodiment of the present invention (hereinafter, referred to as "embodiment") with reference to the accompanying drawings. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing one embodiment of a battery unit as a housing of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of the battery unit shown in FIG. [Diagram 3] 3 is a perspective view of a fuse cover that constitutes the battery unit shown in FIG. [Figure 4]FIG. 4 is a perspective view of a protective wall that constitutes the fuse cover shown in FIG. [Diagram 5] FIG. 5 is a top view of the protective wall shown in FIG. [Figure 6] FIG. 6 is a partial front view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0012] For the sake of convenience, the following definitions are used for the terms "front", "rear", "left", "right", "upper" and "lower" as shown in Figs. 1 to 6. The "front-rear direction", "left-right direction" and "upper-lower direction" are mutually orthogonal. The upper-lower direction corresponds to the "standing direction" of the present invention.

[0013] As shown in Figures 1 and 2, the battery unit 1 as a housing includes a battery 2 (housing body), a fuse unit 3 (Figure 2), and a fuse cover 4 (cover). As shown in Figure 2, the battery 2 includes a battery housing 21, a battery cover 22, and an electrode 23. The battery housing 21 houses a plurality of battery cells. The battery housing 21 is formed in the shape of a rectangular cylinder with a bottom, and has an opening at the top.

[0014] The battery cover 22 is attached to the battery housing 21 so as to cover the upper opening of the battery housing 21. The battery cover 22 has a battery cover main body 221 that covers the upper opening of the battery housing 21, and a standing wall 222 that stands downward from the periphery of the battery cover main body 221 and covers the upper opening edge of the battery housing 21 from the outside. The battery cover main body 221 is provided with recesses 221A, 221A that are recessed downward at the rear right corner and the rear left corner, respectively. The recess 221A is provided in a rectangular shape when viewed from above.

[0015] The electrodes 23 are connected to the multiple battery cells. The electrodes 23 protrude upward from the bottom surface of the recess 221A of the battery cover 22. In this embodiment, the positive electrode 23 protrudes from the right recess 221A. Note that the negative electrode is not shown in Figs. 1 and 2.

[0016] 2, the fuse unit 3 has a battery terminal 31 connected to the electrode 23, a fuse 32 connected to the battery terminal 31, and a wire harness 33 connected to the fuse 32. The battery terminal 31 has a hole through which the electrode 23 can be inserted, and the diameter of the hole is reduced by tightening a bolt 34. This allows the battery terminal 31 to be electrically connected to the battery 2 and mechanically fixed. One end of the fuse 32 is connected to the battery terminal 31 by a bolt 35, and the other end is connected to an LA terminal 37 attached to an end of the wire harness 33 by a bolt 36.

[0017] The LA terminal 37 is provided along the upper surface of the battery 2 and has a fuse connection portion 371 connected to the fuse 32 by a bolt 36, and a harness connection portion 372 provided along the rear surface of the battery 2 and connected to the wire harness 33, and is provided in a substantially L-shape. The wire harness 33 is drawn downward along the rear surface of the battery 2.

[0018] The fuse cover 4 is attached so as to cover the recess 221A of the battery 2 and the fuse unit 3 fixed to the battery 2. The fuse cover 4 includes a first cover part 41, a second cover part 42, and a hinge 43. The first cover part 41 covers the LA terminal 37, and is engaged with the fuse unit 3. The second cover part 42 covers the electrode 23, the battery terminal 31, and the fuse 32, and is engaged with the fuse unit 3.

[0019] The hinge 43 supports the second cover part 42 on the first cover part 41 so as to be rotatable about an axis along the left-right direction. When the front end of the second cover part 42 is rotated upward to open the second cover part 42, the battery terminals 31 and the fuse 32 can be seen. When the front end of the second cover part 42 is rotated downward to close the second cover part 42, the second cover part 42 covers the electrodes 23, the battery terminals 31 and the fuse 32. When the second cover part 42 is in the closed position, it is engaged with the fuse unit 3.

[0020] 3, the second cover part 42 has a cover body 421 that covers the electrodes 23, the battery terminals 31, and the fuse 32, and protective walls 422, 423 that are erected from the cover body 421 toward the battery 2. The cover body 421 is formed in a rectangular shape whose width in the left-right direction is longer than that of the recess 221A.

[0021] The protective wall 422 stands upright from the left end and front end of the cover body 421, and is provided in a substantially L-shape as shown in Figures 4 and 5. When the fuse cover 4 is in the closed position as shown in Figure 6, the lower end surface (tip surface) of the protective wall 422 abuts against the protrusion 221B on the periphery of the recess 221A of the battery cover 22. The protective wall 422 is made of a plastic foam (elastic member) such as EPDM (ethylene propylene rubber) material.

[0022] As shown in Figs. 4 and 5, the protective wall 422 is provided with a plurality of hollow portions 422A. In this embodiment, the plurality of hollow portions 422A are provided penetrating in the up-down direction. The plurality of hollow portions 422A are provided lined up along the width direction of the protective wall 422. To explain in detail, in the portion of the protective wall 422 erected from the left end of the cover main body 421, the front-rear direction is the width direction of the protective wall 422, and the hollow portions 422A are provided lined up along the front-rear direction. In the portion of the protective wall 422 erected from the front end of the cover main body 421, the left-right direction is the width direction of the protective wall 422, and the hollow portions 422A are provided lined up along the left-right direction.

[0023] The protective wall 423 stands upright from the right end of the cover body 421. As shown in Fig. 6, when the fuse cover 4 is in the closed position, the protective wall 423 is located outside the standing wall 222 of the battery 2. The end surface of the protective wall 423 is not in contact with the battery 2.

[0024] In the above-mentioned fuse cover 4, only the protective wall 422 is made of foam, and the other parts are made of a resin material such as PP (polypropylene). That is, the first cover part 41 is integrally molded from resin. In the second cover part 42, the parts other than the protective wall 422 (the cover body 421 and the protective wall 423) are integrally molded from resin, and the protective wall 422 made of foam is attached later.

[0025] According to the above-mentioned fuse cover 4, the protective wall 422 is made of a plastic foam. This allows the protective wall 422 to be freely compressed in the vertical direction. If there is dimensional variation in the fuse cover 4 and the fuse unit 3, or variation in the assembly of the fuse unit 3 to the battery 2, variation will occur in the vertical position of the cover body 421 when the fuse cover 4 is locked in the closed position. In this way, even if there is variation in the vertical position of the cover body 421, the protective wall 422 compresses in the vertical direction to absorb the variation, and the lower end surface of the protective wall 422 abuts against the battery cover 22, thereby protecting the battery terminal 31 and the fuse 32.

[0026] When the fuse cover 4 is in the closed position, the protective wall 422 is in a compressed state, and a repulsive force is generated that tries to return the fuse cover 4 from the closed position to the open position. Therefore, as explained in the background art, the closing operation of the fuse cover 4 requires force, and the closing operation cannot be performed easily. In addition, the cover is easily removed.

[0027] According to the fuse cover 4 of this embodiment, a hollow portion 422A is provided in the protective wall 422 made of a plastic foam. By providing the hollow portion 422A, the volume of the protective wall 422 decreases when the protective wall 422 is compressed, and the repulsive force can be reduced. This makes it easier to close the fuse cover 4, and prevents the fuse cover 4 from coming off.

[0028] Moreover, according to the embodiment described above, the hollow portions 422A are provided penetrating the protective wall 422 in the up-down direction, and a plurality of hollow portions 422A are arranged side by side along the width direction of the protective wall 422. This makes it possible to further reduce the repulsive force when the protective wall 422 is compressed.

[0029] The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, etc. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

[0030] In the above-described embodiment, the protective wall 422 is made of a foam, but this is not limiting. The protective wall 422 may be made of any elastic material other than a foam.

[0031] In the above embodiment, the hollow portion 422A is provided penetrating in the vertical direction, but this is not limited thereto. The hollow portion 422A may be closed at one or both of the vertical sides.

[0032] Here, the features of the embodiments of the housing and cover according to the present invention described above will be briefly summarized and listed in the following [1] to [4].

[0033] [1] A housing body (2), a cover (4) having a cover body (421) covering the housing body (2) and a protective wall (422) standing from the cover body (421) toward the housing body (2) and having a tip surface in contact with the housing body (2); The protective wall (422) is made of an elastic material. A housing (1), The protective wall (422) has a hollow portion. Housing (1).

[0034] According to the housing (1) having the configuration [1] above, the hollow portion (422A) reduces the volume of the protective wall (422) when the protective wall (422) is compressed, thereby reducing the repulsive force. This facilitates the closing operation of the cover (4) and prevents the cover (4) from coming off.

[0035] [2] In the housing (1) according to [1], The hollow portion (422A) is provided to penetrate the protective wall (422) in the erection direction (up-down direction) and is arranged in a plurality of holes along the width direction (front-rear direction or left-right direction) of the protective wall (422). Housing (1).

[0036] According to the housing (1) having the configuration [2] above, the repulsive force generated when the protective wall (422) is compressed can be further reduced.

[0037] [3] In the housing (1) according to [1], The housing body (2) is a battery, and electrodes (23) of the battery are protruded from the housing body (2), The device further includes a fuse unit (3) attached to the electrode (23), The cover (4) covers the fuse unit (3). Housing (1).

[0038] According to the housing (1) having the above configuration (3), the fuse unit (3) can be protected by the cover (4).

[0039] [4] A cover body (421) that covers the housing body (2); a protective wall (422) extending from the cover body (421) toward the housing body (2) and having a tip surface in contact with the housing body (2); The protective wall (422) is made of an elastic material. A cover (4), The protective wall (422) is provided with a hollow portion (422A). Cover(4).

[0040] According to the cover (4) having the above configuration (4), the hollow portion (422A) reduces the volume of the protective wall (422) when the protective wall (422) is compressed, thereby reducing the repulsive force. This facilitates the closing operation of the cover (4) and prevents the cover (4) from coming off. [Explanation of symbols]

[0041] 1 Battery unit (housing) 2 Battery (main body) 3 Fuse Unit 4 Fuse cover (cover) 23 electrodes 421 Cover body 422 Protective Wall 422A Hollow part

Claims

1. A housing body, a cover including a cover body that covers the housing body, and a protective wall that stands from the cover body toward the housing body and has a tip surface that contacts the housing body; The protective wall is made of an elastic material. A housing, The protective wall is provided with a hollow portion. Case.

2. The housing according to claim 1 , The hollow portion is provided penetrating the protective wall in the erection direction, and a plurality of hollow portions are provided along the width direction of the protective wall. Housing.

3. The housing according to claim 1 , the housing body is a battery, and electrodes of the battery are protruding from the housing body; a fuse unit attached to the electrode; The cover covers the fuse unit. Case.

4. A cover body that covers the housing body; a protective wall extending from the cover body toward the housing body and having a tip surface in contact with the housing body; The protective wall is made of an elastic material. A cover, The protective wall is provided with a hollow portion. cover.

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