Waterproof structure of battery shell

Abstract

The waterproof structure comprises a lower box body and an upper cover, the lower box body is hollow, the top end of the lower box body is open, a cavity used for containing a battery is formed between the upper cover and the lower box body, the upper cover is arranged at the top end of the lower box body in a covering mode, a flange edge is arranged on the periphery of the upper cover, and the flange edge is connected with the lower box body. A sinking table is arranged on the inner wall of the lower box body, the flange edge abuts against the sinking table, and a gluing space is formed by the upper cover and the lower box body. According to the waterproof structure, the gap between the upper cover and the lower box body is sealed by using glue, so that the waterproof performance of the battery shell is enhanced, and the sealing effect of the battery shell is ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a waterproof battery casing structure. Background Technology

[0002] As two-wheeled vehicles become the preferred mode of transportation for many users, their demands for quality are also increasing. The quality of a two-wheeled vehicle largely depends on the quality of its battery, and a significant factor in battery quality is the sealing performance of the battery casing. Currently, most two-wheeled vehicle battery casings use sealing strips for waterproofing. However, using sealing strips for waterproofing has several drawbacks. For example, most sealing strip materials on the market age over time, hardening, cracking, and losing elasticity, leading to seal failure. Secondly, sealing strips have poor versatility; different battery casings require different specifications of sealing strips. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a waterproof battery casing structure.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A waterproof battery casing structure includes: a lower housing and a upper cover. The lower housing is hollow and has an opening at the top. A cavity for accommodating a battery is formed between the upper cover and the lower housing. The upper cover is placed on the top of the lower housing. A flange is provided on the periphery of the upper cover. A recessed platform is provided on the inner wall of the lower housing. The flange abuts against the recessed platform. An adhesive space is formed between the upper cover and the lower housing.

[0006] In one embodiment, the flange edge is located at the outer periphery of the lower end of the upper cover, and the flange edge is arranged around the outer periphery of the lower end of the upper cover in a circumferential direction.

[0007] In one embodiment, the flange edge extends outward a certain distance from the outer wall of the top cover.

[0008] In one embodiment, the recessed platform is located at a certain distance downward from the upper end of the lower housing, and the recessed platform is arranged around the inner circumference of the lower housing, extending a certain distance from the inner wall of the lower housing towards the center of the lower housing.

[0009] In one embodiment, the distance by which the platform extends toward the center of the lower housing is less than the distance by which the flange extends toward the outside of the upper cover.

[0010] In one embodiment, the glue-applying space is located between the outer wall of the upper cover, the flange edge, and the inner wall of the lower housing.

[0011] In one embodiment, the glue-applying space is located inside the lower box, and the glue-applying space is filled with glue, the filling height of which does not exceed the upper height of the lower box.

[0012] In one embodiment, a fixing component is further included, the fixing component including a first through hole in the outer wall of the upper cover, a second through hole in the outer wall of the lower housing, and a screw passing between the second through hole and the first through hole. The first through hole penetrates the inner and outer sides of the upper cover and is located above the flange edge. The second through hole penetrates the inner and outer sides of the lower housing and is positioned corresponding to the first through hole. The screw passes through the second through hole and the first through hole sequentially from the lower housing.

[0013] In one embodiment, there are multiple first through holes, which are evenly distributed along the circumferential direction of the upper cover. The outer wall of the upper cover is provided with multiple threaded posts, which are correspondingly arranged with the multiple first through holes. The multiple first through holes are respectively located on the multiple threaded posts. There are also multiple second through holes, which are evenly distributed along the circumferential direction of the lower housing. Screws are inserted between the multiple second through holes and the multiple first through holes.

[0014] In one embodiment, the upper end of the cover is provided with a mounting groove, which is recessed downward from the upper end of the cover. A handle is placed in the mounting groove and is installed on the upper surface of the cover.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] This utility model discloses a waterproof battery casing structure by setting a flange on the outer wall of the upper cover and a recessed platform on the inner wall of the lower casing. The flange of the upper cover abuts against the recessed platform of the lower casing, so that the outer wall of the upper cover, the flange, and the outer wall of the lower casing form a glue-applying space. Before applying glue, the upper cover and the lower casing are fixed with screws. Then, glue is filled into the glue-applying space to seal the gap between the upper cover and the lower casing, thereby forming a sealed structure between the upper cover and the lower casing. This enhances the waterproof performance of the battery inside the lower casing and ensures the airtightness of the battery casing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0018] Figure 1 An exploded structural diagram of a waterproof battery casing provided by this utility model;

[0019] Figure 2 A cross-sectional view of a waterproof battery casing structure provided by this utility model;

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0021] Figure 4 This is a top view schematic diagram of a waterproof battery casing structure provided by this utility model.

[0022] Attached diagram descriptions: 10. Lower housing; 11. Recessed platform; 12. Second perforation; 20. Top cover; 21. Flange edge; 22. First perforation; 23. Mounting groove; 24. Handle; 30. Adhesive application space; 40. Adhesive; 50. Screw; 60. Threaded post. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0024] A waterproof battery casing structure, as shown in the reference. Figure 1 The device includes a lower housing 10 and an upper cover 20 covering the lower housing 10. The lower housing 10 is hollow and has an opening at the top. The upper cover 20 and the lower housing 10 form a cavity for accommodating the battery. The upper cover 20 covers the top of the lower housing 10, and the upper cover 20 and the lower housing 10 form a hollow sealed space to seal the battery placed inside the lower housing 10.

[0025] Reference Figure 1 The upper cover 20 has a flange edge 21 on its outer periphery, and the lower housing 10 has a recessed platform 11 on its inner wall. When the upper cover 20 and the lower housing 10 are installed, the flange edge 21 of the upper cover 20 extends into the lower housing 10 and abuts against the recessed platform 11 of the lower housing 10, so that a sealant space 30 is formed between the upper cover 20 and the lower housing 10. The sealant space 30 is arranged around the outer periphery of the upper cover 20. The sealant space 30 is filled with glue 40, which is used to replace the sealing strip of the prior art to seal the space between the upper cover 20 and the lower housing 10.

[0026] Furthermore, referring to Figure 1 The flange edge 21 is located at the outer periphery of the lower end of the upper cover 20. The flange edge 21 is arranged around the lower periphery of the upper cover 20 in a circumferential direction, and the flange edge 21 extends outward from the outer wall of the upper cover 20 by a certain distance.

[0027] Furthermore, referring to Figure 1 The recessed platform 11 is located at a certain distance downward from the upper end of the lower box 10. The recessed platform 11 is arranged around the inner circumference of the lower box 10 and extends a certain distance from the inner wall of the lower box 10 towards the center of the lower box 10.

[0028] Furthermore, referring to Figure 1 The distance that the recessed platform 11 extends downward to the center of the housing 10 is less than the distance that the flange edge 21 extends upward to the outer side of the cover 20. The flange edge 21 abuts against the upper surface of the recessed platform 11, and the recessed platform 11 serves to support the flange edge 21.

[0029] Reference Figure 2 and Figure 3 The glue application space 30 is located between the outer wall of the upper cover 20, the flange edge 21 and the inner wall of the lower box 10. The flange edge 21 is used to prevent the glue 40 from overflowing into the lower box 10. By filling the glue application space 30 with glue 40, the glue 40 fills the gap between the outer wall of the upper cover 20 and the inner wall of the lower box 10, and the glue 40 is filled in the circumferential direction of the glue application space 30 to ensure the sealing between the upper cover 20 and the lower box 10.

[0030] Furthermore, referring to Figure 2 and Figure 3 The glue application space 30 is located inside the lower box 10, and the filling height of the glue 40 does not exceed the height of the upper end of the lower box 10, so as to avoid the glue 40 overflowing outside the lower box 10 and affecting the appearance.

[0031] Reference Figure 2 and Figure 3 In this embodiment, adhesive 40 is a sealant. Sealing the upper cover 20 and lower casing 10 with adhesive 40 improves the waterproof performance of the battery casing. Adhesive 40 effectively fills gaps, has good elasticity, and can adapt to the deformation of the upper cover 20 and lower casing 10 without losing its sealing effect, resulting in better and longer-lasting waterproofing. Sealing with adhesive 40 eliminates the need to design sealing strips of different specifications for different battery casing structures. All metal casings can be sealed by setting the flange edge 21 and the countersunk platform 11 and then sealing with adhesive 40. The operation is simple and quick, saving the step of manually installing sealing strips and reducing production costs.

[0032] Reference Figure 1Before the glue 40 fills the glue application space 30, the positions of the upper cover 20 and the lower housing 10 need to be fixed. The upper cover 20 is fixed to the lower housing 10 before glue application to prevent the upper cover 20 from shifting during the glue application process and causing the glue 40 to flow into the lower housing 10. Therefore, a fixing component is provided between the upper cover 20 and the lower housing 10. The fixing component includes a first through hole 22 on the outer wall of the upper cover 20, a second through hole 12 on the outer wall of the lower housing 10, and a screw 50 passing between the second through hole 12 and the first through hole 22. The first through hole 22 penetrates the inner and outer sides of the upper cover 20 and is located above the flange edge 21. The second through hole 12 penetrates the inner and outer sides of the lower housing 10 and is positioned corresponding to the first through hole 22. When the flange edge 21 of the upper cover 20 abuts against the recess 11 of the lower casing 10, the first through hole 22 and the second through hole 12 are positioned opposite each other. Screws 50 pass sequentially from the outside of the lower casing 10 through the second through hole 12 and the first through hole 22 of the upper cover 20 to connect and fix the upper cover 20 to the lower casing 10. After the upper cover 20 and the lower casing 10 are fixed together by the screws 50, glue 40 is filled into the glue application space 30 to achieve a seal between the upper cover 20 and the lower casing 10, ensuring the airtightness of the battery casing.

[0033] Furthermore, referring to Figure 1 The upper cover 20 has multiple first through holes 22 on its outer wall, which are evenly distributed along the circumference of the upper cover 20. Multiple threaded posts 60 are provided on the outer wall of the upper cover 20, corresponding to the multiple first through holes 22. When the glue 40 is filled into the glue application space 30 and formed, it conforms to the shape of the threaded posts 60 on the outer wall of the upper cover 20, thus helping to secure the upper cover 20 and increasing its firmness. The lower housing 10 also has multiple second through holes 12 on its outer wall, which are evenly distributed along the circumference of the lower housing 10. The second through holes 12 are respectively positioned opposite to the multiple first through holes 22. Screws 50 are inserted between the multiple second through holes 12 and the multiple first through holes 22, and the screws 50 fix the upper cover 20 and the lower housing 10 together.

[0034] Furthermore, referring to Figure 4 The upper end of the cover 20 has a mounting groove 23, which is recessed downwards from the upper end of the cover 20. A handle 24 is placed within the mounting groove 23. The handle 24 is mounted to the upper surface of the cover 20 and is used to facilitate the movement of the battery casing. The handle 24 can be lifted to move the battery casing during use, and can be retracted into the mounting groove 23 when not in use.

[0035] The battery casing has a flange edge 21 on the outer wall of the upper cover 20 and a recessed platform 11 on the inner wall of the lower casing 10. The flange edge 21 of the upper cover 20 abuts against the recessed platform 11 of the lower casing 10, so that the outer wall of the upper cover 20, the flange edge 21 and the outer wall of the lower casing 10 form a glue-applying space 30. Before applying glue, the upper cover 20 and the lower casing 10 are fixed with screws 50. Then, glue 40 is filled into the glue-applying space 30 to seal the gap between the upper cover 20 and the lower casing 10, thereby forming a sealed structure between the upper cover 20 and the lower casing 10, which enhances the waterproof performance of the battery inside the lower casing 10 and ensures the airtightness of the battery casing.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waterproof battery casing structure, characterized in that, include: The lower housing (10) and the upper cover (20) are hollow and open at the top. The upper cover (20) and the lower housing (10) form a cavity for accommodating the battery. The upper cover (20) covers the top of the lower housing (10). The upper cover (20) has a flange edge (21) on its periphery. The lower housing (10) has a recessed platform (11) on its inner wall. The flange edge (21) abuts against the recessed platform (11). The upper cover (20) and the lower housing (10) form a glue-applying space (30).

2. The waterproof battery casing structure according to claim 1, characterized in that, The flange edge (21) is located at the outer periphery of the lower end of the upper cover (20), and the flange edge (21) is arranged around the lower periphery of the upper cover (20) in a circumferential direction.

3. The waterproof battery casing structure according to claim 2, characterized in that, The flange edge (21) extends outward a certain distance from the outer wall of the upper cover (20).

4. The waterproof battery casing structure according to claim 3, characterized in that, The sinking platform (11) is located at a certain distance downward from the upper end of the lower box (10). The sinking platform (11) is arranged around the inner circumference of the lower box (10) and extends a certain distance from the inner wall of the lower box (10) towards the center of the lower box (10).

5. A waterproof battery casing structure according to claim 4, characterized in that, The distance by which the platform (11) extends toward the center of the lower housing (10) is less than the distance by which the flange edge (21) extends toward the outside of the upper cover (20).

6. A waterproof battery casing structure according to claim 5, characterized in that, The glue application space (30) is located between the outer wall of the upper cover (20), the flange edge (21), and the inner wall of the lower box (10).

7. A waterproof battery casing structure according to claim 6, characterized in that, The glue application space (30) is located inside the lower box (10), and the glue application space (30) is filled with glue (40). The filling height of the glue (40) does not exceed the upper height of the lower box (10).

8. A waterproof battery casing structure according to claim 7, characterized in that, It also includes a fixing component, which includes a first through hole (22) on the outer wall of the upper cover (20), a second through hole (12) on the outer wall of the lower housing (10), and a screw (50) passing between the second through hole (12) and the first through hole (22). The first through hole (22) penetrates the inner and outer sides of the upper cover (20) and is located above the flange edge (21). The second through hole (12) penetrates the inner and outer sides of the lower housing (10) and is positioned corresponding to the first through hole (22). The screw (50) passes through the second through hole (12) and the first through hole (22) sequentially from the outside of the lower housing (10).

9. A waterproof battery casing structure according to claim 8, characterized in that, There are multiple first through holes (22), which are evenly distributed along the circumferential direction of the upper cover (20). The outer wall of the upper cover (20) is provided with multiple threaded posts (60), which are correspondingly arranged with the multiple first through holes (22). The multiple first through holes (22) are respectively located on the multiple threaded posts (60). There are also multiple second through holes (12), which are evenly distributed along the circumferential direction of the lower box (10). The screws (50) are inserted between the multiple second through holes (12) and the multiple first through holes (22).

10. A waterproof battery casing structure according to claim 1, characterized in that, The upper end of the cover (20) is provided with a mounting groove (23), which is recessed from the upper end of the cover (20) downwards. A handle (24) is placed in the mounting groove (23), and the handle (24) is installed on the upper surface of the cover (20).

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