Small-size silver oxide battery applied to watch

Abstract

The utility model relates to the technical field of silver oxide batteries, and discloses a small-size silver oxide battery applied to a watch, which comprises a battery shell, a sealing lug ring is arranged at the upper end of an inner cavity of the battery shell, the upper surface of the battery shell is provided with an opening, and the section of the opening of the upper surface of the battery shell is smaller than that of the inner cavity of the battery shell; the lower surface of the battery cover is fixedly connected with a sealing plate; the battery cover, the sealing plate, the battery shell, the sealing lug plate, the clamping ring and the clamping groove are matched, and the clamping ring of the sealing plate is embedded in the clamping groove between the battery shell and the sealing clamping ring, so that the assembling efficiency of the battery cover and the battery shell is improved, and meanwhile, the sealing plate is welded with the sealing lug plate, so that the sealing performance of the battery is improved, and the service life of the battery is prolonged. And moreover, the battery is simple and convenient to assemble, and liquid leakage in the later period of battery assembly is avoided, so that the service life of the battery is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of silver oxide batteries, in particular to a small-sized silver oxide battery used for watches. Background Art

[0002] Silver oxide battery is a common primary battery, also known as silver-zinc battery. It is widely used in various electronic devices and small electronic products, such as watches, calculators, remote controls, etc. Silver oxide battery is favored for its high energy density, long life and stability; the working principle of silver oxide battery is simple and reliable. It converts chemical energy into electrical energy through chemical reactions, realizing long-term power supply of the battery. This button battery has the characteristics of long service life and large capacity. It is widely used and has the largest application volume. This battery uses silver oxide as the positive electrode, metal zinc powder as the negative electrode, and the electrolyte is potassium hydroxide or sodium hydroxide. Electricity is generated through the chemical reaction of zinc and silver oxide;

[0003] In the prior art, the silver oxide batteries used in watches usually have a cover and a sealing ring embedded in the shell opening to seal the battery cell. The cover and the sealing ring inevitably occupy the space inside the shell, which in turn affects the capacity of the silver oxide battery. At the same time, this structure has high requirements on the precision of accessories, great difficulty in accessory production, complex battery assembly process and easy leakage of batteries after production. Therefore, we need to propose a small-sized silver oxide battery for use in watches. Utility Model Content

[0004] The purpose of the utility model is to provide a small-sized silver oxide battery for use in watches, thereby increasing the storage space of the silver oxide battery, thereby increasing the battery capacity, and facilitating the assembly of the silver oxide battery with simple operation, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a small-sized silver oxide battery used in watches, comprising:

[0006] A battery housing, wherein a sealing earring is provided at the upper end of the inner cavity of the battery housing, the upper surface of the battery housing is open, and the cross-section of the upper surface opening of the battery housing is smaller than the cross-section of the inner cavity of the battery housing;

[0007] A battery cover, wherein a sealing plate is fixedly connected to the lower surface of the battery cover, a welding filler is arranged along the edge of the upper surface of the sealing plate, a clamping ring is fixedly connected to the upper surface of the sealing plate along the edge, a clamping groove for embedding the clamping ring is provided on the lower surface of the sealing earring along the battery shell, the upper surface of the welding filler is in conflict with the lower surface of the sealing earring, the cross-section of the battery cover is smaller than the cross-section of the sealing cover, and the outer diameter of the sealing plate is the same as the inner diameter of the battery shell.

[0008] Preferably, a bottom groove is formed on the lower surface of the sealing plate, and both sides of the inner cavity of the bottom groove are fixedly connected with limit plates, and a through hole is provided between the two groups of limit plates.

[0009] Preferably, an anode filler is provided at the bottom of the inner cavity of the battery housing, a diaphragm is provided at the upper end of the anode filler, and a liquid refilling tank is provided on the upper surface of the diaphragm.

[0010] Preferably, a cathode filler is disposed at the upper end of the liquid refilling tank, and two groups of electrode plates are symmetrically disposed at the upper end of the cathode filler, and the upper surfaces of the two groups of electrode plates are fixedly connected to limited position electrode sheets at opposite ends.

[0011] Preferably, the width of the limiting electrode piece is the same as the width of the through hole, and the length of the limiting plate is greater than the length of the limiting electrode piece.

[0012] Preferably, the battery shell is an anode, the battery cover is a cathode, a positive electrode mark is provided on a lower surface of the battery shell, and a cathode mark is provided on an upper surface of the battery cover.

[0013] Preferably, the sealing earring is arranged in a circular ring shape, the inner diameter of the sealing earring is smaller than the outer diameter of the sealing cover, and the welding filler is arranged inside the cavity between the battery cover and the sealing earring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model mainly improves the efficiency of assembling the battery cover and the battery shell by matching the battery cover, the sealing plate, the battery shell, the sealing ear plate, the clamping ring and the clamping groove, and embeds the clamping ring of the sealing plate in the clamping groove between the battery shell and the sealing clamping ring. At the same time, the sealing performance of the battery is improved by welding the sealing plate and the sealing ear ring, thereby expanding the internal capacity of the battery. The assembly is simple and convenient, and leakage of the battery in the later stage of assembly is avoided, thereby increasing the service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the upper surface structure of the battery cover of the utility model;

[0020] Figure 5 It is a schematic diagram of the lower surface structure of the battery cover of the present utility model.

[0021] In the figure: 1. battery case; 2. battery cover; 3. anode filler; 4. diaphragm; 5. liquid refilling tank; 6. cathode filler; 7. sealing earring; 8. clamping slot; 9. plate; 10. limiting pole piece; 11. sealing plate; 12. welding filler; 13. clamping ring; 14. bottom groove; 15. limiting plate; 16. through hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1-5 The utility model provides a technical solution: a small-sized silver oxide battery used in watches, comprising:

[0024] A battery housing 1, wherein a sealing earring 7 is provided at the upper end of the inner cavity of the battery housing 1, and the upper surface of the battery housing 1 is open, and the cross section of the upper surface opening of the battery housing 1 is smaller than the cross section of the inner cavity of the battery housing 1;

[0025] A battery cover 2, wherein a sealing plate 11 is fixedly connected to the lower surface of the battery cover 2, a welding filler 12 is arranged along the edge of the upper surface of the sealing plate 11, a snap ring 13 is fixedly connected to the upper surface of the sealing plate 11 along the edge, a groove 8 for embedding the snap ring 13 is provided on the lower surface of the sealing earring 7 along the battery housing 1, the upper surface of the welding filler 12 is in conflict with the lower surface of the sealing earring 7, the cross-section of the battery cover 2 is smaller than the cross-section of the sealing cover, and the outer diameter of the sealing plate 11 is the same as the inner diameter of the battery housing 1.

[0026] A bottom groove 14 is formed on the lower surface of the sealing plate 11, and limiting plates 15 are fixedly connected to both sides of the inner cavity of the bottom groove 14, and a through hole 16 is provided between the two groups of limiting plates 15. The bottom groove 14 facilitates the limiting plates 15 to position the limiting pole piece 10, thereby improving the stability of the battery cover 2 and the battery housing 1 after welding.

[0027] An anode filler 3 is disposed at the bottom of the inner cavity of the battery housing 1 , a diaphragm 4 is disposed at the upper end of the anode filler 3 , and a liquid refilling tank 5 is disposed on the upper surface of the diaphragm 4 , which can stably supply voltage for a long time.

[0028] A cathode filler 6 is arranged at the upper end of the refilling tank 5, and two groups of electrode plates 9 are symmetrically arranged at the upper end of the cathode filler 6, and the upper surfaces of the two groups of electrode plates 9 are fixedly connected to the limiting electrode pieces 10 at one opposite end, the anode filler 3 is a silver oxide filler, the cathode filler 6 is a zinc filler, and the electrolyte is an alkaline aqueous solution.

[0029] The width of the limiting electrode 10 is the same as the width of the through hole 16, and the length of the limiting plate 15 is greater than the length of the limiting electrode 10. The limiting electrode 10 facilitates the sealing plate 11 to be limited after being embedded in the opening of the battery housing 1, thereby improving the stability of the connection between the sealing plate 11 and the battery housing 1 and preventing leakage of the electrolyte.

[0030] The battery housing 1 is the anode, and the battery cover 2 is the cathode. The lower surface of the battery housing 1 is provided with a positive electrode mark, and the upper surface of the battery cover 2 is provided with a cathode mark. The cathode mark and the anode mark facilitate the use of the battery, improve the safety of use, and avoid reversing the positive and negative poles during use.

[0031] The sealing earring 7 is arranged in a circular ring shape, and the inner diameter of the sealing earring 7 is smaller than the outer diameter of the sealing plate 11. The welding filler 12 is arranged in the cavity between the battery cover 2 and the sealing earring 7. The sealing earring 7 is used to limit the position of the battery cover 2, thereby improving the stability of the sealing plate 11 embedded in the battery housing 1. At the same time, the sealing plate 11 and the sealing earring 7 are interference fit to prevent the sealing plate 11 from detaching from the battery housing 1, thereby improving the stability of the installation of the battery cover 2.

[0032] When in use, first put the anode filler 3 into the bottom of the inner cavity of the battery shell 1, then lay the diaphragm 4 to separate the anode filler 3 from the cathode filler 6, put the refilling tank 5 and the cathode filler 6 in turn and inject the electrolyte, and then press the battery cover 2 into the opening of the battery shell 1, so that the sealing plate 11 is embedded in the battery shell 1, and the through hole 16 between the two groups of limiting plates 15 is matched with the two groups of limiting pole pieces 10, so that the sealing plate 11 and the opening of the battery shell 1 have an interference fit, and by rotating the battery cover 2, fill the welding filler 12 between the battery cover 2 and the sealing earring 7, and then weld the battery cover 2 to the sealing earring 7, so as to improve the sealing between the battery shell 1 and the battery cover 2, reduce the space occupied by the sealing gasket, thereby increasing the capacity of the battery, and facilitate assembly.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small-sized silver oxide battery used in watches, characterized in that: include: A battery housing (1), wherein a sealing earring (7) is provided at the upper end of the inner cavity of the battery housing (1), the upper surface of the battery housing (1) is open, and the cross-section of the opening of the upper surface of the battery housing (1) is smaller than the cross-section of the inner cavity of the battery housing (1); A battery cover (2), wherein a sealing plate (11) is fixedly connected to the lower surface of the battery cover (2), a welding filler (12) is arranged along the edge of the upper surface of the sealing plate (11), a snap ring (13) is fixedly connected to the upper surface of the sealing plate (11), a snap groove (8) for the snap ring (13) to be embedded is provided on the lower surface of the sealing earring (7) along the battery housing (1), the upper surface of the welding filler (12) is in conflict with the lower surface of the sealing earring (7), the cross section of the battery cover (2) is smaller than the cross section of the sealing cover, and the outer diameter of the sealing plate (11) is the same as the inner diameter of the battery housing (1).

2. A small-sized silver oxide battery for use in watches according to claim 1, characterized in that: A bottom groove (14) is provided on the lower surface of the sealing plate (11), and both sides of the inner cavity of the bottom groove (14) are fixedly connected to limit plates (15), and a through hole (16) is provided between the two groups of limit plates (15).

3. A small-sized silver oxide battery for use in watches according to claim 2, characterized in that: An anode filler (3) is arranged at the bottom of the inner cavity of the battery housing (1), a diaphragm (4) is arranged at the upper end of the anode filler (3), and a liquid refilling tank (5) is arranged on the upper surface of the diaphragm (4).

4. A small-sized silver oxide battery for use in watches according to claim 3, characterized in that: A cathode filler (6) is arranged at the upper end of the liquid refilling tank (5), and two groups of electrode plates (9) are symmetrically arranged at the upper end of the cathode filler (6), and the upper surfaces of the two groups of electrode plates (9) are fixedly connected to the limiting electrode pieces (10) at opposite ends.

5. A small-sized silver oxide battery for use in watches according to claim 4, characterized in that: The width of the limiting pole piece (10) is the same as the width of the through hole (16), and the length of the limiting plate (15) is greater than the length of the limiting pole piece (10).

6. A small-sized silver oxide battery for use in watches according to claim 5, characterized in that: The battery housing (1) is an anode, the battery cover (2) is a cathode, a positive electrode mark is provided on the lower surface of the battery housing (1), and a cathode mark is provided on the upper surface of the battery cover (2).

7. A small-sized silver oxide battery for use in watches according to claim 6, characterized in that: The sealing earring (7) is arranged in a circular ring shape, the inner diameter of the sealing earring (7) is smaller than the outer diameter of the sealing cover, and the welding filler (12) is arranged inside the cavity between the battery cover (2) and the sealing earring (7).

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