Button cell assembly structure device and button cell

Abstract

The utility model discloses a button battery assembly structure device and a button battery, the button battery assembly structure device comprises a battery cover, a plastic part and a battery shell, and the battery cover is covered in the battery shell to form an accommodating cavity; the battery cover comprises an upper cover, a positioning wall and a first abutting wall, the positioning wall is formed by vertically extending from the peripheral side of the upper cover, the first abutting wall is formed by extending from the outer ring side of the positioning wall, and the inner diameter of the first abutting wall is larger than that of the positioning wall to form a positioning bulge; the battery shell comprises a lower bottom and a second abutting wall, the second abutting wall is formed by extending from the peripheral side of the lower bottom, the diameter of the lower bottom is larger than that of the upper cover, the inner diameter of the second abutting wall is larger than the outer diameter of the first abutting wall, and the plastic part is adaptively arranged between the first abutting wall and the second abutting wall in an abutting mode. According to the utility model, the plastic part is matched with the battery cover and the battery shell in an insulating manner in a pressing manner, so that the inner part of the button battery is sealed and insulated, the assembled button battery is stable in structure, and undesirable phenomena such as liquid leakage are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a button battery assembly structure device and a button battery. Background Art

[0002] Nowadays, new energy is widely used. As one of the most important structural components in button batteries, the demand for battery covers has increased sharply. The assembly structure stability of traditional battery covers and plastic parts is poor, and liquid leakage and other phenomena will occur in the battery after assembly. These adverse conditions make it difficult to guarantee the quality of button batteries. Moreover, this production mode has high costs, low qualification rates, high investment, and low returns, making it difficult for the company to bear. Summary of the Utility Model

[0003] In order to overcome the above technical problems, the utility model discloses a button battery assembly structure device and a button battery.

[0004] The technical solution adopted by the utility model to achieve the above purpose is as follows:

[0005] A button battery assembly structure device includes a battery cover, a plastic part, and a battery case. The battery cover is disposed in the battery case to form a receiving cavity, and the plastic part is correspondingly abutted between the battery cover and the battery case.

[0006] The battery cover includes an upper cover, a positioning wall, and a first abutting wall. The positioning wall is vertically extended from the outer peripheral side of the upper cover, the first abutting wall is extended from the outer ring side of the positioning wall, the first abutting wall is parallel to the positioning wall, and the inner diameter of the first abutting wall is greater than the inner diameter of the positioning wall to form a positioning protrusion.

[0007] The battery case includes a lower bottom and a second abutting wall. The second abutting wall is extended from the outer peripheral side of the lower bottom. The diameter of the lower bottom is greater than the diameter of the upper cover. The inner diameter of the second abutting wall is greater than the outer diameter of the first abutting wall, and the plastic part is correspondingly abutted between the first abutting wall and the second abutting wall.

[0008] In the above button battery assembly structure device, an assembly cavity is formed between the first abutting wall and the lower bottom, so that there is a certain distance between them in the axial direction;

[0009] The plastic part is correspondingly abutted in the assembly cavity, and between the first abutting wall and the second abutting wall.

[0010] In the above button battery assembly structure device, the central axis of the upper cover and the central axis of the lower bottom are on the same axis.

[0011] The above-mentioned button battery assembly structure device, wherein the central axis of the positioning wall and the central axis of the first abutting wall are on the same axis.

[0012] The above-mentioned button battery assembly structure device, wherein the height of the first abutting wall is greater than the height of the positioning wall.

[0013] The above-mentioned button battery assembly structure device, wherein the height of the second abutting wall is greater than the height of the first abutting wall, so that the second abutting wall extends out of the positioning wall.

[0014] The above-mentioned button battery assembly structure device, wherein the plastic part includes an integrally formed sealing section and an abutting section. The sealing section is abutted against the assembly cavity in a matching manner, and the abutting section is abutted between the first abutting wall and the second abutting wall in a matching manner.

[0015] The above-mentioned button battery assembly structure device, wherein the plastic part further includes a positioning section extending from the abutting section. The positioning section is abutted between the second abutting wall and the positioning wall in a matching manner.

[0016] The above-mentioned button battery assembly structure device, wherein the positioning section is provided with a positioning groove adapted to the positioning protrusion.

[0017] A button battery, which includes the above-mentioned button battery assembly structure device.

[0018] The beneficial effects of the present utility model are as follows: The design of the present utility model is reasonable and ingenious. The plastic part is insulated and cooperated with the battery cover and the battery case by pressing, reducing the contact internal resistance between the two. While improving the assembly reliability and stability, it plays a role in sealing and insulating the inside of the button battery, solves the problem of poor structural stability of the traditional assembly method, makes the structure of the assembled button battery stable, reduces the occurrence of leakage and other bad phenomena, and the finished product processing process is less. The plastic part is less affected by the single product size of the battery cover during the injection molding process, and there will be no problem of difficult assembly. The product quality and production efficiency are high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0020] Figure 1 It is a cross-sectional view schematic diagram of Embodiment 1 of the present utility model;

[0021] Figure 2 It is a cross-sectional view schematic diagram of the battery cover in Embodiment 1 of the present utility model;

[0022] Figure 3 It is a cross-sectional view schematic diagram of the plastic part in Embodiment 1 of the present utility model;

[0023] Figure 4 The sectional view schematic diagram of the battery case in Embodiment 1 of the present utility model;

[0024] Figure 5 The sectional view schematic diagram of Embodiment 2 of the present utility model;

[0025] Figure 6 The sectional view schematic diagram of the plastic part in Embodiment 2 of the present utility model. Specific embodiments

[0026] The present utility model will be further described below through specific embodiments, so that the technical solution of the present utility model is easier to understand and master, rather than limiting the present utility model.

[0027] Embodiment 1: Refer to Figures 1 to 4 , a button battery assembly structure device provided in this embodiment includes a battery cover 1, a plastic part 2 and a battery case 3. The battery cover 1 is covered in the battery case 3 to form an accommodation cavity, and the plastic part 2 is correspondingly abutted between the battery cover 1 and the battery case 3;

[0028] The battery cover 1 includes an upper cover 11, a positioning wall 12 and a first abutting wall 13. The positioning wall 12 is vertically extended from the outer peripheral side of the upper cover 11, the first abutting wall 13 is extended from the outer ring side of the positioning wall 12, the first abutting wall 13 is parallel to the positioning wall 12, and the inner diameter of the first abutting wall 13 is greater than the inner diameter of the positioning wall 12 to form a positioning protrusion 14;

[0029] The battery case 3 includes a lower bottom 31 and a second abutting wall 32. The second abutting wall 32 is extended from the outer peripheral side of the lower bottom 31. The diameter of the lower bottom 31 is greater than the diameter of the upper cover 11. The inner diameter of the second abutting wall 32 is greater than the outer diameter of the first abutting wall 13, and the plastic part 2 is correspondingly abutted between the first abutting wall 13 and the second abutting wall 32.

[0030] Specifically, the plastic part 2 is insulated and cooperated with the battery cover 1 and the battery case 3 by pressing, reducing the contact internal resistance therebetween. While improving the assembly reliability and stability, it plays a role in sealing and insulating the inside of the button battery, solves the problem of poor structural stability of the traditional assembly method, makes the structure of the assembled button battery stable, reduces the occurrence of leakage and other bad phenomena, has fewer finished product processing procedures, the plastic part 2 is less affected by the single product size of the battery cover 1 during the injection molding process, and there will be no problem of difficult assembly, and the product quality and production efficiency are high.

[0031] Preferably, an assembly cavity is formed between the first abutting wall 13 and the lower bottom 31 so that there is a certain distance between them in the axial direction;

[0032] The plastic part 2 is abutted against the assembly cavity, and between the first abutting wall 13 and the second abutting wall 32 in an adapted manner, further reducing the contact internal resistance between the battery cover 1 and the battery case 3, and playing a role in sealing and insulating the inside of the button battery.

[0033] Specifically, the height of the second abutting wall 32 is greater than the height of the first abutting wall 13, so that the second abutting wall 32 extends beyond the positioning wall 12.

[0034] Preferably, the plastic part 2 includes an integrally formed sealing section 21 and an abutting section 22. The sealing section 21 is abutted against the assembly cavity in an adapted manner, and the abutting section 22 is abutted against the first abutting wall 13 and the second abutting wall 32 in an adapted manner; specifically, the edge of the sealing section 21 is flush with the inner wall surface of the first abutting wall 13, reducing the space occupied by the accommodation cavity on the one hand and reducing the contact internal resistance between the battery cover 1 and the battery case 3 on the other hand.

[0035] Specifically, the central axis of the upper cover 11 and the central axis of the lower bottom 31 are on the same axis, and the central axis of the positioning wall 12 and the central axis of the first abutting wall 13 are on the same axis.

[0036] Specifically, the height of the first abutting wall 13 is greater than the height of the positioning wall 12.

[0037] This embodiment also discloses a button battery, which includes the button battery assembly structure device as described above.

[0038] Embodiment 2: Refer to Figures 5 to 6 , in this embodiment, the structure of the button battery assembly structure device is basically the same as that of Embodiment 1, and the difference is that the plastic part 2 further includes a positioning section 23 extending from the abutting section 22, and the positioning section 23 is abutted against the second abutting wall 32 and the positioning wall 12 in an adapted manner; specifically, the positioning section 23 is provided with a positioning groove 24 adapted to the positioning protrusion 14, further improving the positioning and sealing effect on the battery cover 1.

[0039] The design of the present utility model is reasonable and ingenious. The plastic part is insulated and cooperated with the battery cover and the battery case by pressing, reducing the contact internal resistance between the two. While improving the assembly reliability and stability, it plays a role in sealing and insulating the inside of the button battery, solves the problem of poor structural stability of the traditional assembly method, makes the structure of the assembled button battery stable, reduces the occurrence of leakage and other defects, the finished product processing process is less, the plastic part is less affected by the single product size of the battery cover during the injection molding process, and there will be no problem of difficult assembly, and the product quality and production efficiency are high.

[0040] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any person skilled in the art can, without departing from the scope of the technical solution of the present utility model, make many possible changes and modifications to the technical solution of the present utility model by using the technical means and technical content disclosed above, or modify it into equivalent embodiments with equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present utility model without departing from the content of the technical solution of the present utility model shall be covered by the protection scope of the present utility model.

Claims

1. A button battery assembly structure device, characterized in that, It includes a battery cover, a plastic part and a battery case. The battery cover is disposed in the battery case to form a receiving cavity, and the plastic part is correspondingly abutted between the battery cover and the battery case; The battery cover includes an upper cover, a positioning wall and a first abutting wall. The positioning wall is vertically extended from the outer peripheral side of the upper cover, the first abutting wall is extended from the outer ring side of the positioning wall, the first abutting wall is parallel to the positioning wall, and the inner diameter of the first abutting wall is larger than the inner diameter of the positioning wall to form a positioning protrusion; The battery case includes a lower bottom and a second abutting wall. The second abutting wall is extended from the outer peripheral side of the lower bottom. The diameter of the lower bottom is larger than the diameter of the upper cover. The inner diameter of the second abutting wall is larger than the outer diameter of the first abutting wall, and the plastic part is correspondingly abutted between the first abutting wall and the second abutting wall; Wherein, an assembly cavity is formed between the first abutting wall and the lower bottom, so that there is a certain distance between them in the axial direction; The plastic part is correspondingly abutted between the assembly cavity, and the first abutting wall and the second abutting wall; The plastic part includes an integrally formed sealing section and an abutting section. The sealing section is correspondingly abutted in the assembly cavity, the abutting section is correspondingly abutted between the first abutting wall and the second abutting wall, and the edge of the sealing section is flush with the inner wall surface of the first abutting wall.

2. The button cell assembly structure device according to claim 1, characterized in that The central axis of the upper cover and the central axis of the lower bottom are on the same axis.

3. The button cell assembly structure device according to claim 2, characterized in that, The central axis of the positioning wall and the central axis of the first abutting wall are on the same axis.

4. The button cell assembly structure device according to claim 3, characterized in that, The height of the first abutting wall is greater than the height of the positioning wall.

5. The button cell assembly structure device according to claim 4, characterized in that, The height of the second abutting wall is greater than the height of the first abutting wall, so that the second abutting wall extends out of the positioning wall.

6. The button cell assembly structure device according to claim 5, characterized in that, The plastic part further includes a positioning section extended from the abutting section, and the positioning section is correspondingly abutted between the second abutting wall and the positioning wall.

7. The button cell assembly structure device according to claim 6, characterized in that, The positioning section is provided with a positioning groove adapted to the positioning protrusion.

8. A button battery, characterized in that, It includes the button battery assembly structure device according to any one of claims 1 to 7.

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