Battery box structure

Abstract

The utility model discloses a battery box structure. The battery box structure comprises a box body, an elastic sealing element and a box cover, an annular flange is arranged on the outer side wall of the box body and used for being connected with the box cover. The elastic sealing piece is arranged on the outer wall of the box body in a sleeving manner and is in lap joint with the annular flange; the elastic sealing piece can contract in the vertical direction, and the outer wall of the elastic sealing piece is provided with a plurality of wave crest protrusions; when the elastic sealing element shrinks, the plurality of wave crest bulges can extend along the direction far away from the outer wall of the box body; the box cover is detachably mounted on the annular flange through a fastener; when the box cover is in lap joint with the annular flange, the elastic sealing piece shrinks, so that the wave crest protrusions are all attached to the inner wall of the box cover in an extrusion mode. By means of the arrangement, the purposes that the elastic sealing piece is convenient to replace, and meanwhile the sealing effect can be effectively improved are achieved.

Description

Technical Field

[0001] The utility model relates to the field of power batteries, in particular to a battery box structure. Background Art

[0002] Power batteries are the main power source for electric vehicles, and the performance of power batteries is crucial to the safety and service life of vehicles. Power batteries generally include a battery box and a battery module inside the battery box. The battery box is equipped with a heat dissipation or cooling system to prevent the battery module from overheating and affecting battery performance, or causing combustion due to overheating.

[0003] The existing patent publication number CN212874619U proposes a box structure and a battery box, which applies a curing sealant on the joint surface between the box and the box cover, and uses the pressure formed by the joint between the box and the box cover to deform the curing sealant to achieve the sealing of the joint, so as to solve the problem that the sealing of the joint will be affected after unpacking, inspection and maintenance. However, this device has certain defects: as the above-mentioned device uses the deformation of the curing sealant to form a sealing pair, after long-term use, the curing sealant will inevitably age, and because the curing sealant is installed by coating, the aged curing sealant needs to be scraped and cleaned when replaced, which is very inconvenient.

[0004] Therefore, a battery box structure is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a battery box structure, which can facilitate the replacement of elastic sealing parts and effectively improve the sealing effect.

[0006] In order to solve the above technical problems, the utility model provides a battery box structure, including a box body, an elastic sealing member and a box cover;

[0007] The outer side wall of the box body is provided with an annular flange for connecting with the box cover;

[0008] The elastic sealing member is sleeved on the outer wall of the box body and overlapped with the annular flange;

[0009] The elastic sealing member can shrink in the vertical direction, and the outer wall has a plurality of wave peaks;

[0010] When the elastic sealing member contracts, the plurality of wave crest protrusions can extend in the direction away from the outer wall of the box body;

[0011] The box cover is detachably mounted on the annular flange by means of fasteners;

[0012] When the box cover is overlapped with the annular flange, the elastic sealing member contracts, so that the plurality of wave peak protrusions are pressed and fitted with the inner wall of the box cover.

[0013] Further, the elastic sealing member includes a plurality of inner sealing rings, a plurality of outer sealing rings and a rubber connecting surface;

[0014] The inner sealing ring and the outer sealing ring are arranged alternately, and the inner sealing ring and the outer sealing ring are connected via the rubber connecting surface.

[0015] Furthermore, the cross-sectional area of ​​the outer sealing ring is larger than the cross-sectional area of ​​the inner sealing ring to form the wave crest protrusion.

[0016] Furthermore, the inner sealing ring located at the top is in contact with the top wall of the inner cavity of the box cover, and the inner sealing ring located at the bottom is overlapped with the annular flange.

[0017] Furthermore, a receiving groove is provided in the box cover;

[0018] A sealed chamber is formed between the containing groove and the outer wall of the box body;

[0019] The elastic sealing member is placed in the sealing chamber.

[0020] Furthermore, the receiving groove includes a first mounting groove and a second mounting groove which are arranged in sequence from top to bottom;

[0021] The first mounting groove matches the upper surface of the box body;

[0022] The sealed chamber is formed between the second installation groove and the outer wall of the box body.

[0023] Furthermore, the elastic sealing component abuts against the top wall of the inner cavity of the second installation groove, and the wave crest protrusion can be pressed and fitted with the inner wall of the second installation groove.

[0024] Furthermore, the annular flange is configured as a rectangular frame, and a plurality of positioning holes matching the fasteners are provided on the upper surface.

[0025] Compared with the prior art, the utility model has at least the following beneficial effects:

[0026] By arranging an annular flange on the outer side of the box body for connecting the box cover and supporting the elastic seal, and by arranging an elastic seal with multiple wave peaks and a shrinkable seal, when the box cover and the box body are installed, the elastic seal can be in a contracted state, and the multiple wave peaks abut against the inner wall of the box cover, thereby forming multiple sets of sealing pairs, thereby further improving the sealing effect of the connection between the box body and the box cover, and because the elastic seal and the box body are connected in a sleeve type, they can be easily assembled and disassembled. Therefore, this device can not only facilitate the replacement of the elastic seal, but also effectively improve the sealing effect between the box body and the box cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of the battery box structure of the utility model;

[0028] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 It is a structural schematic diagram of the elastic sealing component in the battery box structure of the utility model.

[0030] Figure numbers: 1. box body; 11. annular flange; 2. elastic sealing member; 21. inner sealing ring; 22. outer sealing ring; 23. rubber connecting surface; 3. box cover; 4. sealing chamber. DETAILED DESCRIPTION

[0031] The battery box structure of the utility model will be described in more detail below in conjunction with the schematic diagram, wherein the preferred embodiment of the utility model is shown. It should be understood that those skilled in the art can modify the utility model described herein and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation to the utility model.

[0032] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] like Figures 1 to 3 As shown, an embodiment of the utility model proposes a battery box structure, including a box body 1, an elastic sealing member 2 and a box cover 3.

[0034] The outer side wall of the box body 1 is provided with an annular flange 11 for connecting with the box cover 3 and also for supporting the elastic seal 2 so that when the box cover 3 is subsequently docked with the box body 1, the elastic seal 2 can shrink (i.e., shrink by being pressed by the box cover 3).

[0035] The elastic seal 2 is sleeved on the outer wall of the box body 1 and overlapped with the annular flange 11. Since the elastic seal 2 and the box body 1 are sleeved, when the elastic seal 2 is found to be aged, the elastic seal 2 can be directly removed from the box body 1 to achieve the purpose of convenient replacement.

[0036] The elastic sealing member 2 can shrink in the vertical direction (ie, the plugging direction of the box cover 3), and the outer wall has a plurality of wave peaks.

[0037] It should be noted that, when the elastic seal 2 contracts, the plurality of wave crest protrusions can extend in the direction away from the outer wall of the box body 1 to be closely attached to the inner wall of the box cover 3 to form a plurality of sealing pairs, thereby improving the sealing effect.

[0038] The box cover 3 is detachably mounted on the annular flange 11 via fasteners.

[0039] It should be noted that when the box cover 3 overlaps with the annular flange 11 , the elastic sealing member 2 contracts, so that the plurality of wave crest protrusions are pressed and fitted with the inner wall of the box cover 3 .

[0040] The device provides an annular flange 11 on the outer side of the box body 1 for connecting the box cover 3 and supporting the elastic seal 2, and provides an elastic seal 2 with multiple wave peaks and can shrink, so that when the box cover 3 and the box body 1 are installed, the elastic seal 2 can be in a contracted state, and the multiple wave peaks abut against the inner wall of the box cover 3, thereby forming multiple sets of sealing pairs, thereby further improving the sealing effect of the connection between the box body 1 and the box cover 3, and because the elastic seal 2 and the box body 1 are connected in a sleeve type, they can be easily assembled and disassembled. Therefore, the device can not only facilitate the replacement of the elastic seal 2, but also effectively improve the sealing effect between the box body 1 and the box cover 3.

[0041] In this embodiment, a specific elastic sealing member 2 is provided to form multiple sets of sealing pairs with the inner wall of the box cover 3 to improve the sealing effect between the box cover 3 and the box body 1 .

[0042] Specifically, the elastic sealing member 2 includes a plurality of inner sealing rings 21 , a plurality of outer sealing rings 22 and a rubber connecting surface 23 .

[0043] The inner sealing ring 21 and the outer sealing ring 22 are arranged alternately, and the inner sealing ring 21 and the outer sealing ring 22 are connected via the rubber connecting surface 23 .

[0044] It should also be noted that the cross-sectional area of ​​the outer sealing ring 22 is larger than the cross-sectional area of ​​the inner sealing ring 21 to form the wave peak protrusion, that is, the outer wall of the elastic sealing member 2 has a wavy structure on one side, thereby forming a plurality of wave peak protrusions for being squeezed and fitted with the inner wall of the box cover 3, and cooperating with the rubber connecting surface 23 to form a plurality of sealing pairs.

[0045] In this embodiment, the inner sealing ring 21 located at the top is in contact with the top wall of the inner cavity of the box cover 3, and the inner sealing ring 21 located at the bottom is overlapped with the annular flange 11, so that the outer sealing ring 22 located between the top inner sealing ring 21 and the bottom inner sealing ring 21 can extend outward to fit with the inner wall of the box cover 3 to form a sealing pair.

[0046] In other embodiments, the shape of the box cover 3 is further limited to facilitate better pressing of the elastic sealing member 2 to shrink the elastic sealing member 2 to form a sealing pair.

[0047] The box cover 3 is provided with a receiving groove, and a sealed chamber 4 is formed between the receiving groove and the outer wall of the box body 1 .

[0048] The elastic sealing member 2 is placed in the sealing chamber 4 , and a plurality of sealing pairs are formed between the elastic sealing member 2 and the sealing chamber 4 , thereby ensuring the sealing effect between the box cover 3 and the box body 1 .

[0049] In addition, the receiving groove includes a first installation groove and a second installation groove which are arranged in sequence from top to bottom.

[0050] The first installation groove matches the upper surface of the box body 1 , and the second installation groove and the outer wall of the box body 1 surround and form the sealed chamber 4 .

[0051] It should also be noted that when the box cover 3 is assembled with the box body 1 (ie, when the fastener is locked), the elastic seal 2 abuts against the top wall of the inner cavity of the second mounting groove, and the wave crest protrusion can be squeezed and fit with the inner wall of the second mounting groove.

[0052] In a further embodiment, the annular flange 11 is configured as a rectangular frame, and a plurality of positioning holes matching the fasteners are provided on the upper surface, so that the box cover 3 and the annular flange 11 can be connected together by the fasteners to complete the connection between the box cover 3 and the box body 1.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A battery box structure, characterized in that: It includes a box body, an elastic sealing member and a box cover; The outer side wall of the box body is provided with an annular flange for connecting with the box cover; The elastic sealing member is sleeved on the outer wall of the box body and overlapped with the annular flange; The elastic sealing member can shrink in the vertical direction, and the outer wall has a plurality of wave peaks; When the elastic sealing member contracts, the plurality of wave crest protrusions can extend in a direction away from the outer wall of the box body; The box cover is detachably mounted on the annular flange by means of fasteners; When the box cover is overlapped with the annular flange, the elastic sealing member contracts, so that the plurality of wave peak protrusions are pressed and fitted with the inner wall of the box cover.

2. The battery box structure according to claim 1, characterized in that: The elastic sealing member comprises a plurality of inner sealing rings, a plurality of outer sealing rings and a rubber connecting surface; The inner sealing ring and the outer sealing ring are arranged alternately, and the inner sealing ring and the outer sealing ring are connected via the rubber connecting surface.

3. The battery box structure according to claim 2, characterized in that: The cross-sectional area of ​​the outer sealing ring is greater than the cross-sectional area of ​​the inner sealing ring to form the wave crest protrusion.

4. The battery box structure according to claim 2, characterized in that: The inner sealing ring located at the top is in contact with the top wall of the inner cavity of the box cover, and the inner sealing ring located at the bottom is overlapped with the annular flange.

5. The battery box structure according to claim 1, characterized in that: A receiving groove is provided in the box cover; A sealed chamber is formed between the containing groove and the outer wall of the box body; The elastic sealing member is placed in the sealing chamber.

6. The battery box structure according to claim 5, characterized in that: The receiving groove includes a first mounting groove and a second mounting groove which are arranged sequentially from top to bottom; The first mounting groove matches the upper surface of the box body; The sealed chamber is formed between the second installation groove and the outer wall of the box body.

7. The battery box structure according to claim 6, characterized in that: The elastic sealing component abuts against the inner cavity top wall of the second installation groove, and the wave crest protrusion can be pressed and fitted with the inner wall of the second installation groove.

8. The battery box structure according to claim 1, characterized in that: The annular flange is configured as a rectangular frame, and a plurality of positioning holes matching the fasteners are provided on the upper surface.

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