Combined battery cap convenient to produce

Abstract

The utility model discloses a combined battery cap convenient to produce, and relates to the technical field related to batteries. The cap comprises a mounting ring, a cap body, a pushing piston and a fixing pipe, the cap body is fixed to the bottom end of the mounting ring, the bottom end of the cap body is fixedly communicated with a movable cavity, the pushing piston is movably connected in the movable cavity, insertion pipes are symmetrically fixed in the pushing piston in a penetrating mode, and the fixing pipe is fixedly communicated with the position, corresponding to the insertion pipes, of the bottom in the movable cavity. And the bottom end of the intubation tube is arranged in the fixed tube. Through the arrangement of the mounting ring, the cap main body, the pushing piston and the fixing pipe, the problems that the assembly is relatively tedious when the battery cap is manufactured, and the use safety of internal components of a battery is influenced by air backflow easily caused by deflation of a safety valve are solved, and the battery cap has the advantages that the assembly is more convenient when the battery cap is manufactured, and the production efficiency is improved. And when the safety valve is deflated, air backflow is not easily caused.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the battery related technical field, especially, a kind of combined battery cap convenient to produce. BACKGROUND

[0002] Battery cap is an important component of battery, mainly used to provide the closed function of battery, also play the role of safety valve and positive electrode conductive terminal, the design and quality of battery cap directly affect the performance and safety of battery, battery cap has the effect of preventing the leakage of electrolyte inside battery, protect the chemical substances inside battery from the influence of external environment, when the internal pressure of battery is too high, safety valve will be opened automatically, release internal pressure, prevent battery explosion, as the positive electrode of battery, connect with external circuit, so that battery can work normally, but it still has the following disadvantages in actual use:

[0003] Battery cap is directly combined and welded by safety valve and cap main body during operation, it is more troublesome to operate during work, and it is more cumbersome to operate during processing, and it is not convenient to use;

[0004] Battery cap is directly installed in suitable position during operation, and exhaust is carried out by safety valve during work, to prevent battery from bulging, and safety valve is not sensitive during work, which can cause air backflow, and affect the use safety of internal components of battery. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of combined battery cap convenient to produce, by setting up mounting ring, cap main body, push piston and fixed pipe, the problem that battery cap is more cumbersome to assemble during manufacturing, and safety valve is easy to cause air backflow during exhaust, and affect the use safety of internal components of battery is solved.

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

[0007] The utility model is a kind of combined battery cap convenient to produce, including mounting ring, cap main body, push piston and fixed pipe, the bottom of mounting ring is fixed with cap main body, the bottom of cap main body is fixedly connected with movable cavity, push piston is movably connected in movable cavity, plug pipe is fixedly connected in push piston, fixed pipe is fixedly connected with movable cavity and plug pipe, the bottom of plug pipe is arranged in fixed pipe, during work, mounting ring is used to accommodate adhesive ring, push piston is movably connected in movable cavity at the bottom of cap main body, push piston is supported by cooperating with elastic rubber column, and fixed pipe is used to cooperate with the ventilation function of cap main body.

[0008] Further, the inner bottom of the mounting ring is provided with an annular adhesive groove, and an adhesive ring is arranged in the adhesive groove, and the top surface of the adhesive ring is higher than the inner bottom surface of the mounting ring.

[0009] Further, the bottom end of the movable cavity is fixedly connected with a convex cap, and the bottom end of the movable cavity outside the convex cap is symmetrically provided with a ventilation hole, and the elastic rubber column is movably connected in the convex cap through the convex cap during the operation of the movable cavity, and the ventilation is performed through the ventilation hole.

[0010] Further, the bottom end of the movable cavity is fixedly connected with a convex cap, and the bottom end of the movable cavity outside the convex cap is symmetrically provided with a ventilation hole, and the elastic rubber column is movably connected in the convex cap through the convex cap during the operation of the movable cavity, and the ventilation is performed through the ventilation hole.

[0011] Further, the bottom end of the movable cavity is fixedly connected with a convex cap, and the bottom end of the movable cavity outside the convex cap is symmetrically provided with a ventilation hole, and the elastic rubber column is movably connected in the convex cap through the convex cap during the operation of the movable cavity, and the ventilation is performed through the ventilation hole.

[0012] Further, the bottom end of the movable cavity is fixedly connected with a convex cap, and the bottom end of the movable cavity outside the convex cap is symmetrically provided with a ventilation hole, and the elastic rubber column is movably connected in the convex cap through the convex cap during the operation of the movable cavity, and the ventilation is performed through the ventilation hole.

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

[0014] The utility model discloses a battery cap manufacturing device, which comprises a mounting ring, a cap main body and a push piston, and the push piston is movably arranged in the mounting ring.

[0015] This invention solves the problem of air backflow during the release of air from the safety valve in the battery cap, which can affect the safety of internal battery components, by setting up a cap body, a pushing piston, and a fixing tube. During operation, the high-pressure air generated inside the battery is delivered to the cap body, pushing the pushing piston and causing it to descend through an elastic rubber column. The pushing piston causes the insertion tube to descend, pressing it into the fixing ring inside the fixing tube, which then pushes open the flexible sealing plate and opens the flexible sealing block, allowing the high-pressure gas generated in the battery assembly to be released. After venting is complete, the insertion tube rises again with the pushing piston due to the rebound of the elastic rubber column, and the flexible sealing plate re-closes and tightens. This ensures that after the safety valve releases air during battery operation, it can be promptly closed under air pressure, better preventing internal battery components from contacting air. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional cross-sectional view of a modular battery cap that is easy to manufacture;

[0018] Figure 2 A 3D view of the installation ring structure;

[0019] Figure 3 This is a three-dimensional view of the half-section structure of the main body of the cap;

[0020] Figure 4 A three-dimensional view of the piston's half-section structure;

[0021] Figure 5 This is a three-dimensional sectional view of the fixed tube section.

[0022] Figure 6 This is a three-dimensional diagram of a modular battery cap assembly structure that is easy to manufacture.

[0023] Figure label:

[0024] 1. Mounting ring; 101. Adhesive groove; 102. Adhesive ring; 2. Cap body; 201. Movable cavity; 202. Vent hole; 203. Protruding cap; 3. Push piston; 301. Fixing hole; 302. Insert tube; 303. Elastic rubber column; 4. Fixing tube; 401. Fixing ring; 402. Flexible sealing plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0026] Please see Figures 1-5 This utility model is a modular battery cap that is easy to manufacture, including a mounting ring 1, a cap body 2, a push piston 3, and a fixing tube 4. The cap body 2 is fixed to the bottom end of the mounting ring 1. When the mounting ring 1 is working, it accommodates the adhesive ring 102 for adhesive bonding. The cap body 2, in conjunction with the cap body 2, seals the end of the cylindrical lithium battery. The bottom end of the cap body 2 is fixedly connected to a movable cavity 201, through which the push piston 3 is movably connected. The push piston is movably connected within the movable cavity 201. 3. When the piston 3 is pushed, the insertion tube 302 is driven down. The insertion tube 302 is symmetrically fixed inside the piston 3. The bottom of the movable cavity 201 is fixedly connected to the position corresponding to the insertion tube 302. The bottom end of the insertion tube 302 is set in the fixed tube 4. During operation, when the insertion tube 302 is lowered, it enters the fixed tube 4, then extends between the flexible sealing pieces 402, pushes open the flexible sealing pieces 402, and opens the flexible sealing pieces 402, so that the high-pressure gas generated in the battery assembly is discharged.

[0027] Specifically, an annular adhesive groove 101 is provided at the bottom of the mounting ring 1, and an adhesive ring 102 is provided in the adhesive groove 101. The top surface of the adhesive ring 102 is higher than the inner bottom surface of the mounting ring 1. When the mounting ring 1 is working, the adhesive ring 102 is accommodated in the adhesive groove 101, and the battery casing is glued in place by the adhesive ring 102.

[0028] Furthermore, a convex cap 203 is fixedly connected to the bottom end of the movable cavity 201. Vent holes 202 are symmetrically opened at the bottom end of the movable cavity 201 outside the convex cap 203. When the movable cavity 201 is working, the elastic rubber column 303 is movably connected in it through the convex cap 203, and exhaust is carried out through the vent holes 202.

[0029] Furthermore, an elastic rubber column 303 is fixed at the center of the bottom end of the piston 3. The elastic rubber column 303 is movably connected inside the convex cap 203. When the piston 3 is working, the elastic rubber column 303 restricts the position of the piston 3 in the movable cavity 201.

[0030] Furthermore, the piston 3 on the outside of the elastic rubber column 303 has symmetrical through-holes 301, and each through-hole 301 has a tube 302 fixed inside. The tube 4 is located outside the through-hole 301, and the inner diameter of the tube 4 is equal to the inner diameter of the through-hole 301. When the piston 3 is pushed to work, the tube 302 is fixed through the through-hole 301.

[0031] The operation process of this embodiment is as follows: During manufacturing, the cap body 2 is first placed on the external tooling, and then the push piston 3 is adsorbed by the external adsorption structure and then lowered. When the insertion tube 302 is inserted into the fixed tube 4, the push piston 3 is lowered into the movable cavity 201, so that the cap is assembled during operation, and the push piston 3 is pressed between the inner wall of the movable cavity 201. Then, during operation, the adhesive ring 102 can be coated in the adhesive groove 101. Specific Implementation

[0032] Please see Figures 1-6 Based on the first specific embodiment, each fixed tube 4 has a fixed ring 401 fixed to its upper inner part. The bottom end of the fixed ring 401 is fixed with a flexible sealing piece 402 in a ring array. The flexible sealing piece 402 is set in the lower inner part of the fixed tube 4. After the cap is produced, the cylindrical battery is placed in the mounting ring 1 and the cylindrical battery is glued together by the adhesive ring 102. When the internal structure of the battery is working, the high-pressure air generated is delivered to the cap body 2, pushing the piston 3 and descending through the elastic rubber column 303. The piston 3 drives the insertion tube 302 to descend, so that the insertion tube 302 is pressed into the fixed ring 401 in the fixed tube 4, pushing open the flexible sealing piece 402 and opening the flexible sealing block, so that the high-pressure gas generated in the battery assembly is discharged.

[0033] The operation process of this embodiment is as follows: After the cap is produced, the cylindrical battery is placed in the mounting ring 1 and glued together by the adhesive ring 102. When the internal structure of the battery is working, the high-pressure air generated is delivered to the cap body 2, pushing the piston 3 and causing it to descend through the elastic rubber column 303. The piston 3 drives the insertion tube 302 to descend, so that the insertion tube 302 is pressed into the fixing ring 401 in the fixing tube 4, pushing open the flexible sealing piece 402 and opening the flexible sealing block, so that the high-pressure gas generated in the battery assembly is discharged. After the venting is completed, the insertion tube 302 rises with the piston 3 under the rebound of the elastic rubber column 303, and the flexible sealing piece 402 re-closes and tightens.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A combined battery cap for easy production, comprising a mounting ring (1), a cap body (2), a push piston (3) and a fixing tube (4), characterized in that: The bottom end of the mounting ring (1) is fixed with a cap body (2), the bottom end of the cap body (2) is fixedly communicated with a movable cavity (201), the movable cavity (201) is movably connected with a push piston (3), the push piston (3) is fixedly communicated with a cannula (302) symmetrically, the bottom of the movable cavity (201) is fixedly communicated with a fixed tube (4) corresponding to the cannula (302), and the bottom end of the cannula (302) is arranged in the fixed tube (4).

2. A combination battery cap for ease of production as defined in claim 1, wherein: The bottom of the mounting ring (1) is provided with an annular adhesive groove (101), the adhesive groove (101) is provided with an adhesive ring (102), and the top surface of the adhesive ring (102) is higher than the inner bottom surface of the mounting ring (1).

3. A combination battery cap for facilitating production as defined in claim 1, wherein: The bottom end of the movable cavity (201) is fixedly communicated with a convex cap (203), and the bottom end of the movable cavity (201) outside the convex cap (203) is symmetrically provided with a breathable hole (202).

4. A combination battery cap for facilitating production as defined in claim 3, wherein: The bottom end of the push piston (3) is fixedly provided with an elastic rubber column (303), and the elastic rubber column (303) is movably connected in the convex cap (203).

5. A combination battery cap for facilitating production as defined in claim 4, wherein: The push piston (3) outside the elastic rubber column (303) is symmetrically provided with a fixed hole (301), each fixed hole (301) is fixedly provided with a cannula (302), the fixed tube (4) is arranged outside the fixed hole (301), and the inner diameter of the fixed tube (4) is equal to the inner diameter of the fixed hole (301).

6. The combination battery cap of claim 1, wherein: The inner upper portion of each fixed tube (4) is fixedly provided with a fixed ring (401), the bottom end of the fixed ring (401) is annularly arranged with a flexible sealing piece (402), and the flexible sealing piece (402) is arranged in the inner lower portion of the fixed tube (4).

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