Miniature lithium-manganese button cell with rapidly connected positive and negative terminals

By using arc-shaped locking blocks and toothed structures for quick connection and interlocking rubber sealing rings, the sealing and ease of assembly/disassembly issues of lithium manganese button batteries at high power output are solved, achieving stable connection and improved safety.

CN223598739UActive Publication Date: 2025-11-25CHANGZHOU YUFENG BATTERY CO LTD
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Patent Information

Application Number
CN202423291439.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-25
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing lithium manganese button batteries are prone to sealing failure during high-power output, resulting in poor sealing performance and inconvenience in fixing the positive and negative terminals, which affects service life and ease of maintenance.

Method used

The system employs an arc-shaped locking block and a locking tooth structure to achieve rapid connection between the positive and negative electrode shells. Combined with the staggered locking of the rubber sealing ring and sealing groove, it improves connection stability and sealing performance.

Benefits of technology

It enables rapid and stable connection of miniature lithium manganese button batteries, improves sealing and safety, and extends battery life and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a miniature lithium-manganese button cell with quickly connected positive and negative terminals, which particularly relates to the technical field of batteries and comprises a negative shell, an elastic sheet arranged on the inner side of the negative shell, a gasket arranged on the top of the elastic sheet, a negative plate arranged on the top of the gasket, a diaphragm arranged on the top of the negative plate and a positive plate arranged on the top of the diaphragm. A connecting mechanism is arranged on the inner side of the cathode shell; the connecting mechanism comprises a plurality of arc-shaped clamping blocks. According to the utility model, the connection mechanism and the sealing mechanism are arranged, the positive pole shell and the negative pole shell are connected more quickly and stably through rotary fixation and clamping of the clamping teeth by the plurality of clamping grooves, the overall structural strength of the battery is enhanced, the use safety is improved, the rubber sealing ring is used for primary sealing, and the service life of the battery is prolonged. And through staggered clamping connection between the sealing grooves and the sealing strips, the sealing performance of the joint of the negative electrode shell and the positive electrode shell is further improved, and the sealing performance and the safety in the battery are ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field more specifically, the utility model relates to positive and negative terminal quick connection's micro lithium manganese button cell. BACKGROUND

[0002] With the advancement of modernization, battery products also need to adapt to the development of current electronic products, not only need to meet light, portable and convenient replacement, also need to meet high-power output and no radio interference, in addition, some electronic products also need stable voltage power supply, especially in the high-end medical instrument back-end collection database drive power supply, the stability of voltage power supply and high-power output requirement is particularly strict.

[0003] The existing button lithium manganese battery has the defect of poor sealing of the sealing, especially in the high-power output process, the sealing structure is easy to fail, and the stability is poor.

[0004] Through the retrieval, the utility model discloses a button lithium manganese battery of a kind of, the top wall of negative cup cover is in the shape of necking, the outer edge diameter of top wall is compared with the necking distance of edge outer wall, and the necking distance is below 2mm, in this structure, the opening part of positive cup shell is radially retracted and formed, better sealing can be realized, it is favorable to maintain the high-power output of battery, with compact structure, the high yield of sealing formation and the advantage of good stability.

[0005] But the above-mentioned lithium manganese battery in actual use, when needing to repair or replace battery, since positive and negative terminal is fixed on lithium manganese button cell, it is inconvenient to disassemble and assemble battery, affect the service life and maintenance convenience of battery. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of prior art, the utility model provides positive and negative terminal quick connection's micro lithium manganese button cell to solve the problems in the above background art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model discloses a positive and negative terminal quick connection's micro lithium manganese button cell, including the negative pole shell, the inside of negative pole shell is provided with the elastic sheet, the top of elastic sheet is provided with the gasket, the top of gasket is provided with the negative pole piece, the top of negative pole piece is provided with the diaphragm, the top of diaphragm is provided with the positive pole piece, the top of positive pole piece is provided with the positive pole shell, the inside of negative pole shell is provided with the connecting mechanism, the connecting mechanism includes a plurality of arc -shaped clamping blocks, one side with negative pole shell inside fixed connection, a plurality of arc -shaped clamping blocks are all provided with the opening between, the bottom of arc -shaped clamping block is provided with the inclined plane, the bottom of opening is provided with three clamping grooves, one side of arc -shaped clamping block is fixedly connected with the fender, the inside of negative pole shell is fixedly connected with the sealing ring, the bottom of positive pole shell is fixedly connected with the push piece, the outside of push piece is fixedly connected with the connecting plate, the outside of connecting plate is fixedly connected with a plurality of clamping teeth, the outside of clamping tooth is with the inside slide connection of opening, the outside of negative pole shell and positive pole shell is provided with sealing mechanism.

[0009] By adopting the above technical scheme: the clamping tooth is used to slide at the bottom of the arc-shaped clamping block, so that the positive pole shell can be extruded with the negative pole shell during rotation, so that the negative pole shell and the positive pole shell are stably connected, and the quick connection of the micro lithium manganese button cell is completed by rotating the positive pole shell.

[0010] As a further description of the above technical scheme: the sealing mechanism includes a sealing groove one, the sealing groove one is arranged on the upper surface of the negative pole shell, the top of the negative pole shell is fixedly connected with a sealing strip one, the outer side of the positive pole shell is fixedly connected with a rubber sealing ring, the bottom of the rubber sealing ring is fixedly connected with a sealing strip two, the bottom of the rubber sealing ring is provided with a sealing groove two, the outer side of the sealing strip two is clamped with the inner side of the sealing groove one, and the inner side of the sealing groove two is clamped with the outer side of the sealing strip one.

[0011] By adopting the above technical scheme: the sealing strip two and the sealing groove two at the bottom of the rubber sealing ring are staggered and clamped with the sealing groove one and the sealing strip one at the top of the negative pole shell, so that the connection sealing property of the negative pole shell and the positive pole shell is improved, and the use of the micro lithium manganese button cell is safer.

[0012] As a further description of the above technical scheme: the top of the positive pole shell is provided with a plurality of grooves, and the grooves are arranged in an annular array on the upper surface of the positive pole shell.

[0013] By adopting the above technical scheme: a plurality of grooves increase the stress points of the rotation of the positive pole shell, so that the positive pole shell is more easily rotated.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. By setting the connecting mechanism, compared with the prior art, the opening is used to make the installation of the positive shell and the negative shell, which can be quickly rotated and fixed, the clamping of the plurality of clamping grooves to the clamping teeth can improve the connection speed of the positive shell and the negative shell and keep stable, the multiple limiting makes the assembled micro lithium manganese button cell have better connection stability, and the use safety of the micro lithium manganese button cell is improved;

[0016] 2. By setting the sealing mechanism, compared with the prior art, the rubber sealing ring is used to preliminarily seal the connection of the negative shell and the positive shell, and the mutual interlaced clamping between the sealing groove one and the sealing strip one and the sealing strip two and the sealing groove two makes the sealing property of the rubber sealing ring to the connection of the negative shell and the positive shell be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the overall structure of the utility model.

[0018] Figure 2 It is a schematic view of the external structure of the utility model.

[0019] Figure 3 It is a schematic view of the connection of the negative shell and the arc-shaped clamping block of the utility model.

[0020] Figure 4 It is a schematic view of the connection of the positive shell and the rubber sealing ring of the utility model.

[0021] Figure 5 It is a schematic view of the connection of the connecting plate and the clamping tooth of the utility model.

[0022] Figure 6 It is a schematic view of the Figure 3 of the utility model.

[0023] Figure 7 It is a schematic view of the Figure 3 of the utility model.

[0024] Figure 8 It is a schematic view of the Figure 4 of the utility model.

[0025] The reference signs are: 1, negative shell; 2, spring piece; 3, gasket; 4, negative plate; 5, diaphragm; 6, positive plate; 7, positive shell; 8, arc-shaped clamping block; 9, opening; 10, clamping groove; 11, stop block; 12, sealing ring; 13, push block; 14, connecting plate; 15, clamping tooth; 16, sealing groove one; 17, sealing strip one; 18, rubber sealing ring; 19, sealing strip two; 20, sealing groove two; 21, groove; 22, inclined surface. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0027] The application discloses a positive and negative terminal quick connection micro lithium manganese button cell as shown in the drawings Figures 1-8 The application discloses a positive and negative terminal quick connection micro lithium manganese button cell as shown in the drawings

[0028] Referring to Figure 4 , Figure 7 and Figure 8 , the sealing mechanism comprises a sealing groove one 16, the sealing groove one 16 is arranged on the upper surface of the negative shell 1, the negative shell 1 is fixedly connected with a sealing strip one 17 at the top, the positive shell 7 is fixedly connected with a rubber sealing ring 18 on the outside, the rubber sealing ring 18 is fixedly connected with a sealing strip two 19 at the bottom, the rubber sealing ring 18 is provided with a sealing groove two 20 at the bottom, the sealing strip two 19 is clamped on the outside of the sealing groove one 16, and the sealing groove two 20 is clamped on the outside of the sealing strip one 17; the rubber sealing ring 18 is used for sealing the connection between the negative shell 1 and the positive shell 7, and the sealing groove one 16 and the sealing strip two 19 are clamped with the sealing strip one 17 and the sealing groove two 20, so that the negative shell 1 and the positive shell 7 are further sealed.

[0029] Referring to Figure 2 As shown, the positive shell 7 top is provided with a plurality of grooves 21, the grooves 21 are annularly arranged on the upper surface of the positive shell 7, the positive shell 7 has better stress points in the rotating process through the grooves 21, facilitating the rotation of the positive shell 7.

[0030] The utility model discloses a working principle: when connecting and assembling the micro lithium manganese button cell, first, the elastic sheet 2, the gasket 3, the negative plate 4 are put into the inside of the negative shell 1, then a certain amount of electrolyte is added, after that, the diaphragm 5 is put into the top of the negative plate 4, the plurality of claws 15 outside the connecting plate 14 of the positive shell 7 bottom are aligned with the opening 9 arranged between the plurality of arc-shaped clamping blocks 8, the claw 15 can pass through the opening 9 and enter the bottom side of the arc-shaped clamping block 8, at the same time, the push block 13 at the bottom of the positive shell 7 will contact the top of the diaphragm 5, then the positive shell 7 is rotated on the top of the negative shell 1 through the groove 21, the connecting plate 14 of the positive shell 7 bottom drives the claw 15 to slide on the opening 9 at the bottom of the plurality of arc-shaped clamping blocks 8, the push block 13 and the connecting plate 14 are guided under the opening 9, and the positive shell 7 is stably connected with the negative shell 1, then when the plurality of claws 15 are rotated and clamped into the first clamping groove 10 at the bottom of the plurality of arc-shaped clamping blocks 8, a certain pressure is applied to the positive shell 7, the claw 15 moves from the inside of the clamping groove 10, then the positive shell 7 is rotated so that the plurality of claws 15 outside the connecting plate 14 are clamped into the claw 15 on the side close to the stop block 11 at the bottom of the plurality of arc-shaped clamping blocks 8, the negative shell 1 and the positive shell 7 are tightly connected, then during the process that the negative shell 1 and the positive shell 7 are connected and rotated, the sealing strip two 19 and the sealing groove two 20 at the bottom of the rubber sealing ring 18 outside the positive shell 7 are staggered with the sealing groove one 16 and the sealing strip one 17 on the top of the negative shell 1, so that the positive shell 7 and the negative shell 1 can be strongly sealed, thereby completing the connection and assembly of the micro lithium manganese button cell.

[0031] The contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used, in the technical scheme, the electric appliance control elements not mentioned belong to the prior art, so they are not shown in the drawings, and will not be described here.

[0032] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A mini lithium-manganese button cell with fast connection of the positive and negative terminals, comprising a negative shell (1), characterized in that: The negative shell (1) is internally provided with an elastic sheet (2), the top of the elastic sheet (2) is provided with a gasket (3), the top of the gasket (3) is provided with a negative plate (4), the top of the negative plate (4) is provided with a diaphragm (5), the top of the diaphragm (5) is provided with a positive plate (6), the top of the positive plate (6) is provided with a positive shell (7), and the negative shell (1) is internally provided with a connecting mechanism. The connecting mechanism comprises a plurality of arc-shaped clamping blocks (8), one side of the arc-shaped clamping block (8) is fixedly connected with the inner side of the negative shell (1), an opening (9) is arranged between the arc-shaped clamping blocks (8), an inclined surface (22) is formed in the bottom of the arc-shaped clamping block (8), and three clamping grooves (10) are formed in the bottom side of the opening (9). The outer side of the negative shell (1) and the positive shell (7) is provided with a sealing mechanism.

2. The micro lithium-manganese button cell with quick connection of positive and negative terminals according to claim 1, characterized in that: One side of the arc-shaped clamping block (8) is fixedly connected with a stop block (11), and the inner side of the negative shell (1) is fixedly connected with a sealing ring (12).

3. The micro lithium-manganese button cell with quick connection of positive and negative terminals according to claim 1, characterized in that: The bottom of the positive shell (7) is fixedly connected with a push block (13), the outer side of the push block (13) is fixedly connected with a connecting plate (14), the outer side of the connecting plate (14) is fixedly connected with a plurality of clamping teeth (15), and the outer side of the clamping tooth (15) is slidably connected with the inner side of the opening (9).

4. The micro lithium-manganese coin cell with quick connection of positive and negative terminals according to claim 1, characterized in that: The sealing mechanism comprises a sealing groove one (16), and the sealing groove one (16) is arranged on the upper surface of the negative shell (1).

5. The micro lithium-manganese coin cell with quick connection of positive and negative terminals according to claim 1, characterized in that: The outer side of the positive shell (7) is fixedly connected with a rubber sealing ring (18), the bottom of the rubber sealing ring (18) is fixedly connected with a sealing strip two (19), and the bottom of the rubber sealing ring (18) is provided with a sealing groove two (20).

6. The micro lithium-manganese button cell with quick connection of positive and negative terminals according to claim 5, characterized in that: The outer side of the sealing strip two (19) is clamped with the inner side of the sealing groove one (16), and the inner side of the sealing groove two (20) is clamped with the outer side of the sealing strip one (17).

7. The micro lithium-manganese coin cell with quick connection of positive and negative terminals according to claim 1, characterized in that: The top of the positive shell (7) is provided with a plurality of grooves (21), and the grooves (21) are arranged in an annular array on the upper surface of the positive shell (7).

Citation Information

Patent Citations

  • Button type lithium-manganese battery

    CN222146282U