Battery sealing assembly

Abstract

The utility model provides a battery sealing assembly, and relates to the field of battery accessories. And the internal structure is located at the bottom of the sealing assembly, a moving structure is installed in the internal structure of the circular-tube-shaped structure, an ejector rod structure is fixed to the top end of the moving structure, and a supporting piece made of rubber is installed at the top end of the moving structure. Before the sealing assembly is fixed, the internal structure is controlled to be mounted in the mounting hole through threads, so that the internal structure is mounted and used together with the sealing assembly, if pressure is generated in the battery and expansion occurs due to overcharge of the battery or external factors, the pressure is in the battery and is transmitted to the internal structure, and the internal structure is stressed and displaced; the supporting piece is compressed, the ejector rod structure protrudes out of the through hole, the problems of the battery can be observed conveniently, and the problems that according to a common battery sealing assembly, after the battery is overcharged or damaged, pressure expansion is likely to be generated in the battery, potential safety hazards exist, and a user cannot find the problems easily are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery accessories, in particular to a battery sealing component. Background Art

[0002] During the battery assembly production process, the negative lead is welded to the lower surface of the gasket by laser welding, and the positive lead is welded to the lower surface of the cover plate that is not blocked by the gasket and the lower insulating sheet. The positive and negative leads are bent, and an injection hole is opened on the battery shell. Then, the electrolyte is injected into the internal cavity of the battery. After the electrolyte is injected, the sealing component is controlled to be placed above the battery opening, and the sealing component is welded to the battery shell by laser welding. The sealing component seals the injection hole to prevent electrolyte leakage. However, the common battery sealing components on the market are relatively weak during the welding process, which may easily cause the sealing components to deform or weld through during welding, affecting the sealing effect. After the battery is overcharged or damaged, pressure expansion is likely to occur inside, posing a safety hazard that is not easy to be discovered by users. Utility Model Content

[0003] The disclosed embodiment relates to a battery sealing assembly, which, after the sealing assembly is installed, controls the internal structure to be inserted into the interior of an opening so that the sealing assembly pressurizes the sealing assembly and the sealing ring to improve the sealing effect, and makes the bottom of the sealing assembly contact with the battery shell, and then welds the inner bottom end of the outer groove at the contact position with the shell, and reinforces the head assembly to increase the strength and thickness of the sealing assembly so that the sealing assembly will not be deformed or welded through during welding.

[0004] In a first aspect of the present disclosure, a battery sealing assembly is provided, specifically comprising: a sealing assembly; the sealing assembly is welded above the opening of the battery, a through hole is provided in the middle position of the sealing assembly, a ring-shaped reinforcement head assembly is provided on the outer side of the top end of the sealing assembly, the inner side of the reinforcement head assembly is an arc-shaped structure, and the outer sides of the sealing assembly and the reinforcement head assembly are provided with an outer groove of an arc-shaped structure; an internal structure; the internal structure is located at the bottom of the sealing assembly, a thread is provided on the outside of the bottom end of the internal structure, a movable structure is installed inside the internal structure of the circular tubular structure, a top rod structure is fixed on the top of the movable structure, a support member made of rubber material is installed on the top of the movable structure, and the bottom outer side of the support member is an inclined structure.

[0005] In at least some embodiments, the bottom of the sealing component is provided with a bottom groove, and a sealing component made of a flexible rubber material is bonded and fixed to the outer edge of the bottom of the bottom groove, and the inner side of the top of the sealing component with a circular ring structure is an inclined structure; the outer side of the sealing component is provided with auxiliary holes arranged in an annular shape, and the bottom of the sealing component is provided with an insertion component, and the insertion component is inserted into the interior of the opening; the outer side of the insertion component is provided with two annular grooves, and a sealing ring is bonded to the inside of the annular groove, and the cross-section of the sealing ring made of a flexible rubber material is a triangular structure, and the bottom end of the insertion component is provided with a mounting hole, and the inner bottom end of the mounting hole is provided with a thread, the mounting hole is fixed with an internal structure through the thread, and the top of the mounting hole is connected to the through hole.

[0006] In at least some embodiments, a retaining ring is provided at the internal bottom end of the internal structure, the top end of the retaining ring is in contact with the bottom of the movable structure, and two positioning plates are provided on both sides of the interior of the internal structure; a top structure made of metal is fixed to the top of the internal structure, the bottom of the top structure is in contact with the top of the support member, the top rod structure is inserted through the interior of the support member, and the top rod structure is also inserted into the interior of the through hole; a force groove is provided at the bottom of the movable structure, and two positioning grooves are provided on both sides of the movable structure, and the positioning grooves are inserted into the interior of the force groove.

[0007] The utility model provides a battery sealing assembly, which has the following beneficial effects:

[0008] After the sealing assembly is installed, the internal structure is controlled to be inserted into the opening so that the sealing assembly pressurizes the sealing assembly and the sealing ring to improve the sealing effect, and the bottom of the sealing assembly contacts the battery shell. The inner bottom end of the outer groove is then welded to the contact position with the shell. The reinforcing head assembly increases the strength and thickness of the sealing assembly so that the sealing assembly will not be deformed or welded through during welding.

[0009] Before the sealing assembly is fixed, the internal structure is controlled to be installed inside the mounting hole through threads so that the internal structure can be installed and used together with the sealing assembly. During the use of the battery, if the battery is overcharged or due to external factors, pressure is generated inside the battery and expansion occurs, the pressure inside the battery is transmitted to the internal structure, and the internal structure is displaced by force, compressing the support member, and the top rod structure protrudes from the through hole, making it easy to observe any problems with the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0011] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0012] In the attached picture:

[0013] Figure 1 A bottom-up structural schematic diagram of the present application is shown;

[0014] Figure 2 A three-dimensional structural schematic diagram of the present application is shown;

[0015] Figure 3 A schematic diagram of the exploded bottom-up structure of the present application is shown;

[0016] Figure 4 A schematic diagram of a partial cross-section bottom view of the sealing assembly of the present application is shown;

[0017] Figure 5 A partial cross-sectional three-dimensional structural schematic diagram of the internal structure of the present application is shown;

[0018] Figure 6 A schematic diagram of the internal structure of the present application is shown;

[0019] Reference numerals list

[0020] 1. Sealing assembly; 101. Reinforcement head assembly; 102. Outer groove; 103. Bottom groove; 104. Sealing assembly; 105. Auxiliary hole; 106. Insertion assembly; 107. Sealing ring; 108. Mounting hole;

[0021] 2. Internal structure; 201. Retaining ring; 202. Positioning plate; 203. Top structure; 204. Moving structure; 205. Force groove; 206. Top rod structure; 207. Positioning groove; 208. Support member. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figures 1 to 6 :

[0024] The utility model proposes a battery sealing component, comprising: a sealing component 1; the sealing component 1 is welded above the opening of the battery, a through hole is provided in the middle position of the sealing component 1, so that the top rod structure 206 passes through, a ring-shaped reinforcement head component 101 is provided on the outer side of the top of the sealing component 1, the inner side of the reinforcement head component 101 is an arc structure, which improves the thickness and hardness of the welding position, and the outer side of the sealing component 1 and the reinforcement head component 101 is provided with an outer groove 102 of an arc structure, and welding is performed inside the outer groove 102 to improve the welding strength and connection effect; an internal structure 2; the internal structure 2 is located in the sealing component 1, the bottom of the internal structure 2 is provided with a thread on the outside of the bottom end, and is installed in the installation hole 108 through the thread. The internal structure 2 of the circular tubular structure is installed with a moving structure 204. After the pressure is generated inside the battery, the moving structure 204 drives the top rod structure 206 to move together. The top of the moving structure 204 is fixed with the top rod structure 206, which is exposed through the through hole, so that the problems of the battery can be easily observed. The top of the moving structure 204 is installed with a support member 208 made of rubber material, and the bottom outer side of the support member 208 is an inclined structure, so that the support member 208 presses the internal structure 2 with the help of elasticity.

[0025] In the present disclosure, Figure 3 and Figure 4 As shown, a bottom groove 103 is provided at the bottom of the sealing component 1, and a sealing component 104 made of flexible rubber material is bonded and fixed to the outer edge of the bottom of the bottom groove 103. The inner side of the top of the sealing component 104 with an annular structure is an inclined structure, which can be compressed to improve the contact effect with the battery shell and the sealing effect; the outer side of the sealing component 104 is provided with an annular evenly arranged auxiliary hole 105 to improve the flexibility of the sealing component 104 and improve the sealing strength; an insertion component 106 is provided at the bottom of the sealing component 1, and the insertion component 106 is inserted into the inside of the opening to block the opening and improve the blocking effect; two annular grooves are provided on the outer side of the insertion component 106, and a sealing ring 107 is bonded inside the annular groove. The cross section of the sealing ring 107 made of flexible rubber material is a triangular structure to assist in sealing, and a mounting hole 108 is provided at the bottom end of the insertion component 106, and a thread is provided at the inner bottom end of the mounting hole 108. The mounting hole 108 is fixed with an internal structure 2 through the thread, and the top of the mounting hole 108 is connected to the through hole so that the internal structure 2 can be installed inside it for use.

[0026] In the present disclosure, Figure 5 and Figure 6As shown, a retaining ring 201 is provided at the bottom end of the internal structure 2, and the top of the retaining ring 201 contacts the bottom of the mobile structure 204 to prevent the mobile structure 204 from moving downward and disengaging. Two positioning plates 202 are respectively provided on both sides of the internal structure 2, which are inserted into the inside of the positioning groove 207 to guide the mobile structure 204 to move vertically up and down; a top structure 203 made of metal is fixed to the top of the internal structure 2, and the bottom of the top structure 203 contacts the top of the support member 208 to assist in limiting and fixing the support member 208, and the top rod structure 206 is inserted through the inside of the support member 208, and the top rod structure 206 is simultaneously inserted into the inside of the through hole; a force groove 205 is provided at the bottom of the mobile structure 204, which is convenient for using a flat-blade screwdriver to be inserted into the inside of the force groove 205, and the mobile structure 204 is controlled to drive the internal structure 2 to rotate, so that the internal structure 2 is installed by threads, and two positioning grooves 207 are respectively provided on both sides of the mobile structure 204, and the positioning grooves 207 are inserted into the inside of the force groove 205 to guide the mobile structure 204 to move.

[0027] The working principle of this embodiment is as follows: first, electrolyte is injected into the battery shell, and then the internal structure 2 is controlled to be installed inside the mounting hole 108 through threads, so that the internal structure 2 is fixed inside the mounting hole 108, and then the sealing component 1 is controlled to be moved and installed, so that the insertion component 106 is inserted into the inside of the opening. At the same time, the sealing component 1 blocks the opening to improve the sealing effect, and then the sealing component 1 is pressed to control the welding of the sealing component 1 and the battery shell. The reinforcement head component 101 is located outside the sealing component 1 to improve the strength and avoid welding through, thereby improving the sealing effect of the sealing component 1. At the same time, the sealing component 1 compresses the sealing component 104 and the sealing ring 107 to improve the sealing strength. When the battery is in use, after the battery expands, the pressure is transferred to the movable structure 204, and the movable structure 204 compresses the support member 208 to expose the top rod structure 206 through the through hole, thereby facilitating the observation of problems existing in the sealing component 1.

[0028] In this article, there are a few points to note:

[0029] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0030] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A battery sealing assembly, characterized in that: include: A sealing component (1); the sealing component (1) is welded above the opening of the battery, a through hole is provided in the middle of the sealing component (1), a ring-shaped reinforcement head component (101) is provided on the outer side of the top of the sealing component (1), the inner side of the reinforcement head component (101) is an arc-shaped structure, and the outer sides of the sealing component (1) and the reinforcement head component (101) are provided with an outer groove (102) of an arc-shaped structure; an internal structure (2); the internal structure (2) is located at the bottom of the sealing component (1), a thread is provided on the outer side of the bottom end of the internal structure (2), a movable structure (204) is installed inside the internal structure (2) of a circular tubular structure, a top rod structure (206) is fixed on the top of the movable structure (204), a support member (208) made of rubber material is installed on the top of the movable structure (204), and the bottom outer side of the support member (208) is an inclined structure.

2. A battery sealing assembly according to claim 1, characterized in that: The bottom of the sealing component (1) is provided with a bottom groove (103), and a sealing component (104) made of a flexible rubber material is bonded and fixed to the outer edge of the bottom of the bottom groove (103), and the inner side of the top end of the sealing component (104) with an annular structure is an inclined structure.

3. A battery sealing assembly according to claim 2, characterized in that: The outer side of the sealing component (104) is provided with annular evenly arranged auxiliary holes (105), and the bottom of the sealing component (1) is provided with an insertion component (106), and the insertion component (106) is inserted into the interior of the opening.

4. A battery sealing assembly according to claim 3, characterized in that: The outer side of the insertion component (106) is provided with two annular grooves, the inside of which is bonded with a sealing ring (107), the cross section of the sealing ring (107) made of a flexible rubber material is a triangular structure, the bottom end of the insertion component (106) is provided with a mounting hole (108), the inner bottom end of the mounting hole (108) is provided with a thread, the mounting hole (108) is fixed with an internal structure (2) via the thread, and the top end of the mounting hole (108) is connected to the through hole.

5. A battery sealing assembly according to claim 4, characterized in that: A retaining ring (201) is provided at the bottom end of the inner structure (2), the top end of the retaining ring (201) contacts the bottom of the moving structure (204), and two positioning plates (202) are provided on both sides of the inner part of the inner structure (2).

6. A battery sealing assembly according to claim 5, characterized in that: A top structure (203) made of metal is fixed to the top of the internal structure (2), the bottom of the top structure (203) contacts the top of the support member (208), the top rod structure (206) penetrates and is inserted into the interior of the support member (208), and the top rod structure (206) is also inserted into the interior of the through hole.

7. A battery sealing assembly according to claim 6, characterized in that: The bottom of the movable structure (204) is provided with a stress-bearing groove (205), and two positioning grooves (207) are respectively provided on both sides of the movable structure (204), and the positioning grooves (207) are inserted into the interior of the stress-bearing groove (205).

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