Battery cap with adhesive seal

Abstract

The utility model discloses a battery cap with an adhesive seal, and relates to the technical field related to batteries. The cap comprises a cap body, a bonding assembly, a flexible sleeve and a conducting ring, the bonding assembly is fixed to the position, close to the edge, of the inner bottom of the cap body, the conducting ring is fixed to the position, in the bonding assembly, of the inner bottom of the cap body, and reeds are arranged at the top end of the conducting ring in an annular array mode. And flexible sleeves are fixed at the inner bottom of the cap main body between the conductive ring and the inner wall of the bonding assembly in an annular array manner. Through the arrangement of the cap main body, the bonding assembly, the flexible sleeve and the conducting ring, the problems that the sealing performance is not good enough due to the fact that the adhesive surface is easy to dry in the transportation process after the battery cap is processed, and the power connection effect is influenced due to the fact that the contact between the cap and a battery power connection structure is not tight enough are solved; the battery cap provided by the utility model has the advantages that the surface of the bonding glue is well ensured not to be solidified in the transportation process of the battery cap, the bonding sealing performance is improved, and the good contact performance of a power connection structure and the cap is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to batteries, and particularly relates to a battery cap with adhesive sealing. Background Art

[0002] The battery cap is an important part of the battery assembly. It plays multiple roles in lithium batteries, including providing a positive electrode conductive terminal, a safety valve function, a battery enclosure function, and sealing protection to prevent electrolyte leakage and entry of external contaminants. The design and manufacture of the battery cap need to consider various pressures and environmental conditions it may face during battery use to ensure its long-term stable operation and the safety of the battery under abnormal conditions. However, it still has the following drawbacks in actual use:

[0003] 1. During the processing of the battery cap, glue is directly applied to the inner wall and then combined with the battery for battery installation. However, during the installation process, the cap needs to completely enclose the end of the battery. When operating, since the glue is set on the inner wall of the battery cap and transported to the assembly position, the surface of the glue will dry, resulting in insufficient sealing of the gap between the battery cap and the battery body during bonding.

[0004] 2. During the combination of the battery cap and the battery body, the structure on the battery core in the battery body needs to be in contact and fastened with the battery cap for power connection processing. When the battery cap is combined, the power connection structure therein is prone to insufficient contact fastening due to the processing pressure difference of different processing equipment, affecting the power connection effect. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a battery cap with adhesive sealing. By setting a cap body, an adhesive assembly, a flexible sleeve, and a conductive ring, the problems that the surface of the glue is prone to drying during the transportation after the battery cap is processed, resulting in poor sealing performance, and the contact between the cap and the battery power connection structure may not be tight enough, affecting the power connection effect, are solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a battery cap with adhesive sealing, which comprises a cap body, an adhesive assembly, a flexible sleeve and a conductive ring. An adhesive assembly is fixed at the inner bottom of the cap body near the edge. A conductive ring is fixed at the inner bottom of the cap body inside the adhesive assembly. Elastic pieces are arranged in an annular array at the top end of the conductive ring. Flexible sleeves are fixedly arranged in an annular array at the inner bottom of the cap body between the conductive ring and the inner wall of the adhesive assembly. During operation, the cap body provides an installation function with the battery body. The cap body and the battery body are bonded together through the adhesive assembly. The adhesive column is fixed therein through the flexible sleeve. The elastic pieces on the conductive ring enable the cap body to be electrically connected with the battery core in the battery body.

[0008] Furthermore, a limiting disc is fixed at the inner bottom of the cap body. The limiting disc is fixed on the inner wall of the conductive ring. The cap body limits the position of the battery body when it is pressed into the cap body through the limiting disc.

[0009] Furthermore, the adhesive assembly comprises a flexible outer ring, a flexible inner ring and an adhesive ring. An adhesive ring is fixed on the inner wall of the flexible outer ring. A flexible inner ring is fixed on the inner wall of the adhesive ring. The interiors of the flexible outer ring and the flexible inner ring are both hollow. The bottoms of the flexible outer ring and the flexible inner ring are both fixed on the inner wall of the cap body. The adhesive assembly restricts the adhesive ring therein through the cooperation of the flexible outer ring and the flexible inner ring.

[0010] Furthermore, the adhesive assembly further comprises a closing disc and a through hole. The top ends of the flexible outer ring and the flexible inner ring are jointly fixed with a closing disc. Through holes are arranged in an annular array at the top end of the closing disc. The through holes are arranged between the flexible outer ring and the flexible inner ring. The adhesive assembly shields the adhesive ring through the closing plate and the adhesive oozes out through the through holes.

[0011] Furthermore, each flexible sleeve is arranged to penetrate through from top to bottom. An adhesive column is fixed in each flexible sleeve. The flexible sleeve is bonded to the battery body through the adhesive column.

[0012] Furthermore, a fixing port is vertically and penetratingly opened in the center of the conductive ring. The limiting disc is fixedly penetrated in the fixing port. A fixing strip is fixed at one edge of the lower part of the inner wall of each elastic piece. The bottom of the fixing strip is fixed at the top end of the conductive ring. The conductive ring is fixed on the limiting disc through the fixing port. The elastic pieces are fixed on the conductive ring through the fixing strips.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model solves the problem that the adhesive surface of the battery cap is prone to drying during transportation after processing, resulting in insufficient sealing performance, by setting a cap body and an adhesive assembly. The adhesive assembly shelters the adhesive ring within the sealing disc. When pressure is applied, the through holes on the sealing disc extrude the adhesive liquid contained in the adhesive ring. Continuing to apply pressure until the battery body presses down to abut against the limiting disc. After the position is properly restricted and until the adhesive liquid dries, the gap between the cap body and the battery body is sealed well, enabling the adhesive surface of the battery cap to remain moist during transportation after processing, and reducing the loss of sealing effect during bonding.

[0015] 2. The utility model solves the problem that the contact between the cap and the battery power connection structure may not be tight enough, affecting the power connection effect, by setting a cap body, a flexible sleeve, and a conductive ring. After installing the cap body onto the battery body, the reed is fixed to the conductive ring through the fixing strip. After the cap body and the battery body are installed in the appropriate position through the reed, they are pressed tightly against the power connection structure of the battery cell. The conductive ring is used to connect the cap body and the battery cell inside the battery, ensuring tight contact between the cap and the battery power connection structure and reducing the impact on the power connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a three-dimensional view of a battery cap assembly structure with adhesive sealing;

[0018] Figure 2 It is a three-dimensional view of the cap body structure;

[0019] Figure 3 It is a three-dimensional view of the adhesive assembly structure;

[0020] Figure 4 It is a three-dimensional view of the flexible sleeve structure;

[0021] Figure 5 It is a three-dimensional view of the conductive ring structure.

[0022] REFERENCE MARKS:

[0023] 1. Cap body; 101. Limiting disc; 2. Adhesive assembly; 201. Flexible outer ring; 202. Flexible inner ring; 203. Adhesive ring; 204. Sealing disc; 205. Through hole; 3. Flexible sleeve; 301. Adhesive column; 4. Conductive ring; 401. Fixing port; 402. Fixing strip; 403. Reed. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Specific embodiment 1

[0026] Please refer to Figures 1-5 , the present invention is a battery cap with adhesive sealing, including a cap body 1, an adhesive assembly 2, a flexible sleeve 3 and a conductive ring 4. An adhesive assembly 2 is fixed at the inner bottom of the cap body 1 near the edge. The cap body 1 provides a closing function for the end of the battery body. The adhesive assembly 2 provides an adhesive function between the cap body 1 and the battery body. A conductive ring 4 is fixed at the inner bottom of the cap body 1 inside the adhesive assembly 2. The cap body 1 and the battery internal cell are powered on through the conductive ring 4. The top of the conductive ring 4 is provided with reed pieces 403 in an annular array. After the cap body 1 and the battery body are installed in a suitable position through the reed pieces 403, they are pressed tightly against the power connection structure of the cell. Flexible sleeves 3 are fixed in an annular array at the inner bottom of the cap body 1 between the conductive ring 4 and the inner wall of the adhesive assembly 2. The adhesive columns 301 are connected therein through the flexible sleeves 3.

[0027] Specifically, a limiting disk 101 is fixed at the inner bottom of the cap body 1. The limiting disk 101 is fixed on the inner wall of the conductive ring 4. The cap body 1 limits the height of the battery body pressing down on the adhesive assembly through the limiting disk 101.

[0028] Furthermore, the adhesive assembly 2 includes a flexible outer ring 201, a flexible inner ring 202 and an adhesive ring 203. An adhesive ring 203 is fixed on the inner wall of the flexible outer ring 201. A flexible inner ring 202 is fixed on the inner wall of the adhesive ring 203. Both the inside of the flexible outer ring 201 and the flexible inner ring 202 are hollow. The bottoms of the flexible outer ring 201 and the flexible inner ring 202 are both fixed on the inner wall of the cap body 1. The adhesive assembly is fixed at the inner bottom of the cap body 1 through the flexible outer ring 201 and the flexible inner ring 202, and the adhesive ring 203 is restricted inside the cap body 1.

[0029] Further, the bonding assembly 2 further includes a closing disk 204 and a through hole 205. The top ends of the flexible outer ring 201 and the flexible inner ring 202 are jointly fixed with a closing disk 204. The top end of the closing disk 204 is provided with through holes 205 in an annular array. The through holes 205 are arranged between the flexible outer ring 201 and the flexible inner ring 202. The bonding assembly 2 shields the adhesive ring 203 therein through the closing disk 204 to prevent the surface of the adhesive ring 203 from solidifying during transportation. When pressure is applied, the through holes 205 on the closing disk 204 squeeze out the glue liquid included in the adhesive ring 203. Continuing to squeeze until the battery body is pressed down to abut against the limiting disk 101. After the position is limited and until the glue liquid dries up, the gap between the cap body 1 and the battery body is sealed well.

[0030] The operation process of this embodiment is as follows: The bonding assembly 2 shields the adhesive ring 203 therein through the closing disk 204. When pressure is applied, the through holes 205 on the closing disk 204 squeeze out the glue liquid included in the adhesive ring 203. Continuing to squeeze until the battery body is pressed down to abut against the limiting disk 101. After the position is limited and until the glue liquid dries up, the gap between the cap body 1 and the battery body is sealed well. Specific Embodiment Two

[0032] Please refer to Figure 1 、 4 As shown in FIGS. 4 and 5, on the basis of Specific Embodiment One, each flexible sleeve 3 is arranged to penetrate through up and down. An adhesive column 301 is fixed inside each flexible sleeve 3. The flexible sleeve 3 fixes the adhesive column 301 therein. After the adhesive column 301 is pressed, the glue overflows from the flexible sleeve 3 and contacts the battery body. After the adhesive column 301 solidifies, the bonding between the cap body 1 and the battery body becomes more firm.

[0033] Specifically, a fixing port 401 is vertically penetrated and opened in the center of the conductive ring 4. The limiting disk 101 is penetrated and fixed in the fixing port 401. A fixing strip 402 is fixed at one edge of the lower part of the inner wall of each spring piece 403. The bottom of the fixing strip 402 is fixed at the top end of the conductive ring 4. The conductive ring 4 fixes the limiting disk 101 through the fixing port 401, and the spring piece 403 is fixed at the top end of the conductive ring 4 through the fixing strip 402.

[0034] The operation process of this embodiment is as follows: During work, when the cap body 1 is installed on the battery body, the spring piece 403 is fixed on the conductive ring 4 through the fixing strip 402. After the cap body 1 and the battery body are installed in place through the spring piece 403, they are pressed tightly against the power connection structure of the battery cell, and the conductive ring 4 conducts electricity to the cap body 1 and the battery cell inside the battery.

[0035] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0036] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A battery cap with adhesive seal, comprising a cap body (1), an adhesive assembly (2), a flexible sleeve (3) and a conductive ring (4), characterized in that: A bonding assembly (2) is fixed near the edge of the inner bottom of the cap body (1). A conductive ring (4) is fixed to the inner bottom of the cap body (1) within the bonding assembly (2). The top end of the conductive ring (4) is provided with reed pieces (403) arranged in a circular array. Flexible sleeves (3) are fixedly arranged in a circular array on the inner bottom of the cap body (1) between the conductive ring (4) and the inner wall of the bonding assembly (2).

2. The battery cap with adhesive seal according to claim 1, characterized in that: A limiting disc (101) is fixed to the inner bottom of the cap body (1), and the limiting disc (101) is fixed to the inner wall of the conductive ring (4).

3. A battery cap with an adhesive seal according to claim 1, characterized in that: The bonding assembly (2) includes a flexible outer ring (201), a flexible inner ring (202), and an adhesive ring (203). An adhesive ring (203) is fixed to the inner wall of the flexible outer ring (201), and a flexible inner ring (202) is fixed to the inner wall of the adhesive ring (203). The interiors of the flexible outer ring (201) and the flexible inner ring (202) are both hollow, and the bottoms of the flexible outer ring (201) and the flexible inner ring (202) are both fixed to the inner wall of the cap body (1).

4. The battery cap with adhesive seal according to claim 3, wherein: The bonding assembly (2) further includes a closing disc (204) and a through hole (205). The top ends of the flexible outer ring (201) and the flexible inner ring (202) are jointly fixed with a closing disc (204). Through holes (205) are formed in a circular array at the top end of the closing disc (204), and the through holes (205) are arranged between the flexible outer ring (201) and the flexible inner ring (202).

5. A battery cap with an adhesive seal according to claim 1, characterized in that: Each of the flexible sleeves (3) is vertically through, and an adhesive column (301) is fixed within each flexible sleeve (3).

6. The battery cap with adhesive seal according to claim 2, wherein: A fixing port (401) is vertically and throughly opened in the center of the interior of the conductive ring (4), and the limiting disc (101) is fixedly arranged through the fixing port (401). A fixing strip (402) is fixed to one edge at the lower part of the inner wall of each reed piece (403), and the bottom of the fixing strip (402) is fixed to the top end of the conductive ring (4).

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