CN219937182U - Aluminum air button cell and electronic product - Google Patents

Abstract

The utility model provides an aluminum air button cell and an electronic product, comprising: the electrolyte-collecting device comprises a shell, an inner cover connected with the shell through a buckle, an air electrode arranged in the shell, a metal annular gasket arranged on the air electrode, a sharp protrusion and an aluminum electrode respectively arranged on one side, close to the inner cover, of the metal annular gasket, a waterproof membrane arranged at an opening of the inner cover, a closed space for placing electrolyte formed between the waterproof membrane and the bottom of the inner cover, an annular protrusion arranged at the edge of the inner cover, and an upper annular groove and a lower annular groove matched with the annular protrusion respectively arranged on the shell; when the annular protrusion is mated with the lower annular groove, the sharp protrusion pierces the waterproof membrane and the aluminum electrode is electrically connected to the inner cap via the metal annular gasket. When the battery is in a non-working state such as storage, the aluminum electrode is isolated from the electrolyte through the cooperation of the protrusions and the upper grooves, so that the self-discharge loss of the button battery can be greatly reduced, and the storage life of the battery is prolonged.

Description

Aluminum air button cell and electronic product

Technical Field

The utility model relates to the technical field of button cells, in particular to an aluminum air button cell and an electronic product.

Background

The button cell is widely applied to hearing aids, cochlea and other hearing auxiliary equipment and various small-sized electric equipment. With the development of the age, the application scene of the button cell is wider and wider, and the usage amount is larger and larger; meanwhile, the required power consumption is larger and larger, and the required endurance is longer and longer.

Currently, the primary button cell used mainly is a zinc-air cell. However, the existing structure of the primary button battery cannot overcome the problem of self-discharge loss during battery storage, which brings difficulty to long-term storage of the battery and also reduces the duration of use.

Therefore, there is a need to design a metal air button cell with a novel structure to solve the self-discharge problem of the button cell in the non-working situations such as storage.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide an aluminum air button cell and an electronic product.

According to the present utility model, there is provided an aluminum air button cell comprising: the electrolyte-containing device comprises a shell, an inner cover connected with the shell through a buckle, and an air electrode arranged in the shell, wherein a metal annular gasket is arranged on the air electrode, a sharp protrusion and an aluminum electrode are respectively arranged on one side, close to the inner cover, of the metal annular gasket, a waterproof membrane is arranged at an opening of the inner cover, a closed space for containing electrolyte is formed between the waterproof membrane and the bottom of the inner cover, an annular protrusion is arranged at the edge of the inner cover, and an upper annular groove and a lower annular groove which are matched with the annular protrusion are respectively arranged on the shell;

when the annular protrusion is matched with the upper annular groove, the sharp protrusion does not pierce the waterproof membrane, when the annular protrusion is matched with the lower annular groove, the sharp protrusion pierces the waterproof membrane, and the aluminum electrode is electrically connected with the inner cover through the metal annular gasket.

Preferably, an insulating rubber ring is arranged between the annular bulge and the upper annular groove and the lower annular groove.

Preferably, a water guide groove is formed in one side, close to the inner cover, of the metal annular gasket, and the sharp protrusion is located in the water guide groove.

Preferably, an ion exchange membrane with ion conduction function is arranged between the metal annular gasket and the air electrode.

Preferably, the air electrode comprises a waterproof and breathable layer arranged at the bottom of the inner side of the shell, an air catalytic layer arranged at the top of the waterproof and breathable layer and a single-layer nickel screen embedded in the air catalytic layer.

Preferably, when the annular projection and the upper annular groove are mated, the distance between the sharp projection tip and the waterproofing membrane is smaller than the distance between the upper annular groove and the lower annular groove.

Preferably, the diameter of the metal annular gasket is larger than the inner cover inner side diameter and smaller than the outer shell inner side diameter.

Preferably, the aluminum electrode, the ion exchange membrane, the air electrode and the annular gasket are fixedly connected to form a whole structure and are packaged at the bottom of the inner side of the shell.

Preferably, the electrolyte is a KOH or NaOH alkaline solution.

The electronic product provided by the utility model comprises an aluminum air button cell.

Compared with the prior art, the utility model has the following beneficial effects:

in the utility model, the inner cover and the shell are mutually matched through the annular bulge arranged at the outer side edge of the inner cover and the upper annular groove and the lower annular groove arranged at the inner side of the shell. When the battery is in a non-working state such as storage, the aluminum electrode is isolated from the electrolyte through the cooperation of the annular bulge and the upper annular groove, so that the self-discharge loss of the button battery can be greatly reduced, and the storage life of the battery is prolonged. When the battery needs to be used, the annular bulge can be separated from the upper annular groove in a pressing mode and embedded into the lower annular groove, the sharp bulge on the metal annular gasket in the state pierces the waterproof membrane, and electrolyte flows out of the waterproof membrane and flows into the whole battery shell, so that the battery starts to normally discharge.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of the overall structure of an aluminum air button cell;

FIG. 2 is an enlarged partial schematic view of an aluminum air button cell;

FIG. 3 is a top view of a metal annular gasket in an aluminum air button cell;

fig. 4 is an elevation view of a metal annular gasket in an aluminum air button cell.

Reference numerals illustrate:

inner cap 1 waterproof membrane 10

Insulating rubber ring 11 of shell 2

The ventilation hole 3 is provided with an annular bulge 12

Annular groove 13 on waterproof rubber ring 4

Lower annular groove 14 of waterproof and breathable layer 5

Nickel screen 6 metal annular gasket 15

Sharp protrusions 16 of the air catalytic layer 7

Water guide groove 17 of ion exchange membrane 8

Electrolyte 18 of aluminum electrode 9

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

The present utility model provides an aluminum air button cell, as shown with reference to fig. 1 and 2, comprising: the shell 2, the inner cup 1 of being connected through the buckle with the shell 2, the setting is at the inside air electrode of shell 2, be provided with metal annular gasket 15 on the air electrode, be provided with sharp-pointed protruding 16 and aluminium electrode 9 on the metal annular gasket 15 on being close to one side of inner cup 1 respectively, the opening part of inner cup 1 is provided with waterproof membrane 10, be formed with the airtight space of placing electrolyte 18 between waterproof membrane 10 and the inner cup 1 bottom, the edge of inner cup 1 is provided with annular protruding 12, be provided with respectively on the shell 2 with annular protruding 12 assorted upper annular groove 13 and lower annular groove 14, be provided with ventilation hole 3 in the shell 2 bottom, be provided with waterproof rubber ring 4 in the inboard edge of shell 2.

The annular protrusion 12 cooperates with the upper annular groove 13 and the lower annular groove 14 to fix the inner cap 1 at the upper and lower positions, respectively, the sharp protrusion 16 does not pierce the waterproofing membrane 10 when the annular protrusion 12 cooperates with the upper annular groove 13, the sharp protrusion 16 pierces the waterproofing membrane 10 when the annular protrusion 12 cooperates with the lower annular groove 14, and the aluminum electrode 9 is electrically connected with the inner cap 1 through the metal annular gasket 15. An insulating rubber ring 11 is arranged between the annular bulge 12 and the upper annular groove 13 and the lower annular groove 14.

In a preferred embodiment, referring to fig. 3 and 4, a water guiding groove 17 is provided on the side of the metal annular gasket 15 near the inner cap 1, and a sharp protrusion 16 is located in the water guiding groove 17. When the annular projection 12 and the upper annular groove 13 are mated, the distance between the tip of the sharp projection 16 and the waterproofing membrane 10 is smaller than the distance between the upper annular groove 13 and the lower annular groove 14. When the annular projection 12 is mated with the lower annular groove 14, the sharp projection 16 pierces the waterproofing membrane 10, and electrolyte 18 flows out of the waterproofing membrane 10, through the water guiding groove 17 on the metal annular gasket 15, and into the entire battery case.

The diameter of the aluminum electrode 9 is smaller than the distance between the two sharp protrusions 16, and the diameter of the metal annular gasket 15 is larger than the inner diameter of the inner cover 1 and smaller than the inner diameter of the outer shell 2. When the annular projection 12 and the lower annular groove 14 are mated, the inner cap 1 can press against the metal annular gasket 15, and the aluminum electrode 9 is electrically connected to the inner cap 1.

An ion exchange membrane 8 with ion conduction function is arranged between the metal annular gasket 15 and the air electrode, so that the air electrode and the aluminum electrode 9 are not directly contacted through the metal annular gasket 15. The air electrode comprises a waterproof and breathable layer 5 arranged at the bottom of the inner side of the shell 2, an air catalytic layer 7 arranged at the top of the waterproof and breathable layer 5 and a single-layer nickel screen 6 embedded in the air catalytic layer 7. Since the lower end of the inner cap 1 cannot press the lower structure when the annular protrusion 12 of the inner cap 1 is fitted with the upper annular groove 13 of the inner cap 1, the aluminum electrode 9, the ion exchange membrane 8, the air electrode, and the metal annular gasket 15 need to be gel-applied at the edges, and these three structures are sealed together and fixed to the inside bottom of the outer case 2.

In a preferred embodiment, the aluminum electrode 9 is an aluminum foil having a thickness of 0.1 to 1mm, and the electrolyte 18 is an alkaline solution such as KOH or NaOH. The thickness of the metal annular gasket 15 is 0.4-0.5mm, and the depth of the water guide groove 17 is 0.1-0.2mm.

The utility model also discloses an electronic product, which adopts the aluminum air button cell.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the utility model and the features of the embodiments may be combined with each other arbitrarily without conflict.

Claims (10)

1. An aluminum air button cell comprising: the lithium ion battery pack comprises a shell (2), an inner cover (1) connected with the shell (2) through a buckle, an air electrode arranged in the shell (2), a metal annular gasket (15) arranged on the air electrode, a sharp protrusion (16) and an aluminum electrode (9) arranged on one side, close to the inner cover (1), of the metal annular gasket (15), a waterproof membrane (10) arranged at an opening of the inner cover (1), a closed space for placing electrolyte (18) formed between the waterproof membrane (10) and the bottom of the inner cover (1), an annular protrusion (12) arranged at the edge of the inner cover (1), and an upper annular groove (13) and a lower annular groove (14) matched with the annular protrusion (12) arranged on the shell (2) respectively;

when the annular bulge (12) is matched with the upper annular groove (13), the sharp bulge (16) does not pierce the waterproof membrane (10), when the annular bulge (12) is matched with the lower annular groove (14), the sharp bulge (16) pierces the waterproof membrane (10), and the aluminum electrode (9) is electrically connected with the inner cover (1) through the metal annular gasket (15).

2. The aluminum air button cell as claimed in claim 1, characterized in that an insulating rubber ring (11) is provided between the annular protrusion (12) and the upper annular groove (13) and the lower annular groove (14).

3. The aluminum air button cell as claimed in claim 1, wherein a water guiding groove (17) is provided on the metal annular gasket (15) at a side close to the inner cap (1), and the sharp protrusion (16) is located in the water guiding groove (17).

4. Aluminium air button cell according to claim 1, characterized in that an ion exchange membrane (8) with ion conducting function is arranged between the metal annular gasket (15) and the air electrode.

5. The aluminum air button cell according to claim 1, wherein the air electrode comprises a water-proof air-permeable layer (5) provided at the bottom inside the case (2), an air-catalytic layer (7) provided on top of the water-proof air-permeable layer (5), and a single-layer nickel mesh (6) embedded in the air-catalytic layer (7).

6. The aluminum air button cell according to claim 1, wherein the distance between the tip of the sharp protrusion (16) and the waterproofing membrane (10) is smaller than the distance between the upper annular groove (13) and the lower annular groove (14) when the annular protrusion (12) and the upper annular groove (13) are mated.

7. The aluminium air button cell according to claim 1, characterized in that the diameter of the metal annular gasket (15) is greater than the inner diameter of the inner cap (1) and less than the inner diameter of the outer shell (2).

8. The aluminum air button cell according to claim 1, wherein the aluminum electrode (9), the ion exchange membrane (8), the air electrode and the annular gasket are fixedly connected to form a unitary structure and are packaged at the bottom of the inner side of the housing (2).

9. The aluminum air button cell of claim 1 wherein the electrolyte (18) is a KOH or NaOH alkaline solution.

10. An electronic product comprising the aluminum air button cell of any one of claims 1-9.