Waterproof structure of battery pack

Abstract

The utility model discloses a battery pack waterproof structure which comprises a box body, a battery and a cover plate, the box body is hollow and is provided with an opening, the battery is contained in the box body, the cover plate covers the opening of the box body, a support is installed between the cover plate and the battery, and the battery is arranged in the support. The space among the cover plate, the box body and the support is filled with the glue, and a sealing structure is formed. The battery pack waterproof structure solves the sealing and waterproof problems of the battery pack, the waterproof effect is good, the glue is filled in the box body, and the attractive effect is good.

Description

Technical Field

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

[0002] With the widespread application of battery packs in various fields, their quality has become particularly important. The quality of a battery pack depends partly on the performance of its internal battery modules and partly on the sealing performance of its encapsulation structure. However, currently, most battery packs rely on sealing rings and external sealants for waterproofing. This approach has several drawbacks, as follows:

[0003] 1. Waterproofing through sealing rings: If the sealing ring size is not suitable, it may lead to poor sealing and leakage; and if it is not properly aligned or pressed in during installation, it may lead to seal failure. After long-term use, the sealing ring material will age, become brittle, and lose its elasticity.

[0004] 2. Waterproofing with external sealant usually involves applying sealant directly to the gap between the cover and the box. However, the sealant is prone to uneven application and inconsistent thickness, which can lead to poor sealing in some areas. The sealant can also easily overflow, affecting the appearance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a waterproof battery pack structure.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A waterproof battery pack structure includes: a housing, a battery, and a cover plate. The housing is hollow and has an opening. The battery is housed in the housing. The cover plate covers the opening of the housing. A bracket is installed between the cover plate and the battery. Adhesive is filled between the cover plate, the housing, and the bracket to form a sealed structure.

[0008] In one embodiment, the bracket is mounted on the upper end of the battery. The bracket is U-shaped and includes an abutment portion and a filling portion disposed around the abutment portion. The abutment portion is convex upward and its upper end abuts against a corresponding position inside the cover plate. The filling portion is disposed around the outer periphery of the abutment portion and is used to fill with adhesive.

[0009] In one embodiment, a groove is formed in the filling part, the groove is formed along the circumferential direction of the filling part, and the adhesive is filled in the groove.

[0010] In one embodiment, the support is housed within the box, and the outer wall of the filling portion is in contact with the inner wall of the box.

[0011] In one embodiment, the adhesive fills the groove and the gap between the bracket and the housing, and the height of the adhesive filling does not exceed the height of the abutment portion.

[0012] In one embodiment, the upper end of the box body abuts against the cover plate. The cover plate includes a cover body and an insertion part disposed below the cover body. The cover body and the insertion part are integrally formed. The four sides of the cover body extend downward to form contact parts for abutting against the upper end of the box body. The insertion part is used to insert into the groove and contact the adhesive.

[0013] In one embodiment, the insertion part is positioned relative to the groove of the bracket, and the insertion part extends downward from the connection with the cover. When the cover is installed downward to the upper end of the box, the insertion part is inserted downward into the groove until the contact part abuts against the upper end of the box.

[0014] In one embodiment, the upper end of the box body and the contact portion are also bonded and fixed with the adhesive.

[0015] In one embodiment, the support is made of plastic or metal.

[0016] In one embodiment, the adhesive is a sealant.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] This utility model discloses a waterproof battery pack structure by setting a bracket inside the box, specifically between the cover plate and the box body, and filling the bracket with glue to fill the gap between the box body and the bracket. During installation, the cover plate is inserted downward into the groove until the cover plate abuts against the box body. The cover plate, box body, and bracket are bonded and fixed with glue to form a sealed structure, which solves the problem of sealing and waterproofing the battery pack. It has a good waterproof effect, and the glue filling is located inside the box body, resulting in a good aesthetic effect. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of a waterproof battery pack structure provided by the present invention;

[0021] Figure 2An exploded structural diagram of a waterproof battery pack structure provided by this utility model;

[0022] Figure 3 A cross-sectional view of a waterproof battery pack structure provided by this utility model;

[0023] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle.

[0024] Figure descriptions: 10, housing; 20, battery; 30, cover plate; 31, cover body; 311, contact part; 32, insertion part; 40, bracket; 41, abutting part; 42, filling part; 421, groove; 50, glue. Detailed Implementation

[0025] 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.

[0026] A waterproof battery pack structure, referenced Figure 1 and Figure 2 The device includes a housing 10, a battery 20, and a cover plate 30. The housing 10 is hollow and has an opening. The battery 20 is housed inside the housing 10. The cover plate 30 covers the opening of the housing 10, and a hollow sealed structure is formed between the cover plate 30 and the housing 10. The battery 20 is housed inside this sealed structure.

[0027] Reference Figure 2 A bracket 40 for filling with adhesive 50 is provided between the cover plate 30 and the housing 10. The bracket 40 is installed on the upper end of the battery 20 and between the cover plate 30 and the battery 20. The bracket 40 is filled with adhesive 50, which bonds the cover plate 30, the housing 10 and the bracket 40 together to form a sealed structure. Adhesive 50 replaces other connection methods, such as welding, riveting, bolting, etc., to solve the problem of difficult sealing between the cover plate 30 and the housing 10, providing a better sealing effect and improving the waterproof performance of the product.

[0028] Reference Figure 2 and Figure 3 The bracket 40 is U-shaped and includes an abutment portion 41 and a filling portion 42 disposed around the abutment portion 41. The abutment portion 41 is convex upward, and the upper end of the bracket 40 abuts against the corresponding position inside the cover plate 30. The filling portion 42 is arranged around the outer periphery of the abutment portion 41 and is used to fill with adhesive 50. The bracket 40 connects the cover plate 30 and the housing 10, and the filling portion 42 further enhances the seal between the cover plate 30 and the housing 10 by filling with adhesive 50.

[0029] Furthermore, referring to Figure 2 A groove 421 is provided in the filling part 42, which is opened along the circumferential direction of the filling part 42 so that the adhesive 50 can be filled into the filling part 42 along the circumferential direction of the bracket 40. The adhesive 50 is filled into the filling part 42 to increase the structural strength of the cover plate 30 and the box body 10, and can still ensure the sealing performance under long-term use.

[0030] Reference Figure 3 and Figure 4 Since the bracket 40 is installed above the battery 20, the bracket 40 is housed inside the housing 10. The outer wall of the filling part 42 of the bracket 40 is in contact with the inner wall of the housing 10, and a ring of the outer wall of the bracket 40 is in contact with a ring of the inner wall of the housing 10. The contact between the outer wall of the bracket 40 and the inner wall of the housing 10 ensures the sealing while forming a groove 421 for filling the glue 50 between the outer wall of the bracket 40 and the inner wall of the housing 10, so as to facilitate the filling of the glue 50.

[0031] Furthermore, referring to Figure 3 and Figure 4 The glue 50 is filled in the groove 421 and the gap between the bracket 40 and the box 10, so that the glue 50 fills the gap between the outer wall of the bracket 40 and the inner wall of the box 10, and the filling height of the glue 50 does not exceed the height of the abutment part 41. The glue 50 is filled into the interior of the box 10 and will not overflow, which improves the aesthetic appearance of the product.

[0032] Reference Figure 3 and Figure 4 The upper end of the housing 10 abuts against the cover plate 30. The cover plate 30 includes a cover body 31 and an insertion part 32 disposed below the cover body 31. The cover body 31 and the insertion part 32 are integrally formed. The four sides of the cover body 31 extend downward to form contact parts 311 for contacting the upper end of the housing 10. The lower end of the contact part 311 abuts against the upper end of the housing 10. The insertion part 32 is located below the cover body 31 and inside the contact part 311. The insertion part 32 is U-shaped and disposed below the cover body 31. The insertion part 32 is positioned relative to the groove 421 of the bracket 40. The insertion part 32 extends downward from the connection with the cover body 31 so that it can extend into the groove 421 and contact the glue 50. The cover plate 30 is provided with the insertion part 32 that inserts into the glue 50 so that the cover plate 30 contacts the glue 50, thereby sealing the cover plate 30 and the interior of the housing 10 through the glue 50.

[0033] Reference Figure 3 and Figure 4After filling the bracket 40 with adhesive 50, the cover plate 30 is installed downwards onto the upper end of the housing 10. The insertion part 32 of the cover plate 30 is inserted downwards into the groove 421 until the contact part 311 of the cover 31 abuts against the upper end of the housing 10. The insertion part 32 stops inserting, and the insertion position of the insertion part 32 does not reach the bottom of the groove 421. The adhesive 50 in the bracket 40 bonds and fixes the cover plate 30, the bracket 40, and the housing 10, forming a sealed structure. The adhesive 50 achieves the sealing between the cover plate 30, the bracket 40, and the housing 10. The adhesive 50 has a damping effect when vibration occurs during long-term use of the product, and has good anti-loosening and vibration absorption performance to maintain the sealing performance for a long time, thereby improving the overall reliability of the product.

[0034] Furthermore, referring to Figure 3 and Figure 4 Adhesive 50 is also provided between the upper end of the housing 10 and the contact part 311 for bonding, so as to bond and fix the housing 10 and the cover plate 30. Adhesive 50 is also used to bond the outside of the housing 10 to the contact position with the cover plate 30, so as to further ensure the sealing effect while providing a connection and fixing function.

[0035] Furthermore, referring to Figure 3 and Figure 4 The support 40 is made of plastic or metal, and there are many options for the materials used to make the support 40.

[0036] Furthermore, referring to Figure 3 and Figure 4 Glue 50 is a sealant, and using sealant provides a better sealing effect.

[0037] Reference Figure 3 and Figure 4 Using adhesive 50 to seal the cover plate 30 and the housing 10 allows for the connection of similar or dissimilar materials, solving connection problems that are difficult to achieve using other processes (such as welding, riveting, bolting, etc.), providing a better sealing effect, and improving the product's waterproof performance. Adhesive 50 bonding increases the structural strength of the cover plate 30 and the housing 10 while reducing weight. The adhesive 50 layer between the bonding surfaces has a damping effect on vibration, providing good anti-loosening and vibration absorption performance, thus improving the overall reliability of the battery pack 20. Applying adhesive 50 inside the housing 10 prevents overflow, improving the aesthetic appearance of the battery pack 20. The operation of bonding and sealing with adhesive 50 is simple, facilitating mechanization and automation, and reducing production costs.

[0038] The waterproof structure of the battery pack 20 solves the problem of sealing and waterproofing the battery pack 20 by setting a bracket 40 inside the box 10, i.e., between the cover plate 30 and the box 10, and filling the gap between the box 10 and the bracket 40 with glue 50. During installation, the insertion part 32 of the cover plate 30 is inserted downward into the groove 421 until the cover plate 30 abuts against the box 10. The cover plate 30, the box 10 and the bracket 40 are bonded and fixed by glue 50 to form a sealed structure, which solves the problem of sealing and waterproofing the battery pack 20. The waterproof effect is good, and the glue 50 is filled inside the box 10, which has a good aesthetic effect.

[0039] 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 pack structure, characterized in that, include: The enclosure (10), battery (20), and cover plate (30) are provided. The enclosure (10) is hollow and has an opening. The battery (20) is housed inside the enclosure (10). The cover plate (30) covers the opening of the enclosure (10). A bracket (40) is installed between the cover plate (30) and the battery (20). Glue (50) is filled between the cover plate (30), the enclosure (10), and the bracket (40) to form a sealed structure.

2. The waterproof battery pack structure according to claim 1, characterized in that, The bracket (40) is installed on the upper end of the battery (20). The bracket (40) is U-shaped. The bracket (40) includes an abutment part (41) and a filling part (42) disposed around the abutment part (41). The abutment part (41) is convex upward, and the upper end of the abutment part (41) abuts against the corresponding position inside the cover plate (30). The filling part (42) is disposed around the outer periphery of the abutment part (41). The filling part (42) is used to fill glue (50).

3. The waterproof battery pack structure according to claim 2, characterized in that, The filling part (42) has a groove (421) inside, the groove (421) is opened along the circumferential direction of the filling part (42), and the glue (50) is filled in the groove (421).

4. The waterproof battery pack structure according to claim 3, characterized in that, The bracket (40) is housed inside the box (10), and the outer wall of the filling part (42) is in contact with the inner wall of the box (10).

5. A waterproof battery pack structure according to claim 4, characterized in that, The adhesive (50) fills the groove (421) and the gap between the bracket (40) and the box (10), and the filling height of the adhesive (50) does not exceed the height of the abutment (41).

6. The waterproof battery pack structure according to claim 5, characterized in that, The upper end of the box body (10) abuts against the cover plate (30). The cover plate (30) includes a cover body (31) and an insertion part (32) disposed below the cover body (31). The cover body (31) and the insertion part (32) are integrally formed. The four sides of the cover body (31) extend downward to form contact parts (311) for abutting against the upper end of the box body (10). The insertion part (32) is used to insert into the groove (421) and contact the glue (50).

7. A waterproof battery pack structure according to claim 6, characterized in that, The insertion part (32) is positioned relative to the groove (421) of the bracket (40). The insertion part (32) extends downward from the connection with the cover (31). When the cover (30) is installed downward to the upper end of the box (10), the insertion part (32) is inserted downward into the groove (421) until the contact part (311) abuts against the upper end of the box (10).

8. A waterproof battery pack structure according to claim 7, characterized in that, The upper end of the box (10) and the contact part (311) are also bonded and fixed with the adhesive (50).

9. A waterproof battery pack structure according to claim 1, characterized in that, The bracket (40) is made of plastic or metal.

10. A waterproof battery pack structure according to claim 1, characterized in that, The adhesive (50) is a sealant.

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