Internal oxygen type zinc-air battery charger baby

Abstract

A first zinc-air battery module and a second zinc-air battery module are formed by connecting two zinc-air batteries in series, the two zinc-air batteries are located on the same plane, the first zinc-air battery module and the second zinc-air battery module are arranged in a mirror symmetry mode, the positive electrode part is close to the mirror surface position, and the negative electrode part is close to the mirror surface position. The gas diffusion partition plate is arranged between the first zinc-air battery module and the second zinc-air battery module, the first zinc-air battery module and the second zinc-air battery module are connected in series and then are connected with the charging wire, the first zinc-air battery module and the second zinc-air battery module are arranged in the shell together, and the side surface of the shell has air permeability. According to the internal oxygen type zinc-air battery power bank with the built-in positive electrode and oxygen introduction from the side face, the zinc-air battery power bank can be attached to the back face of a mobile phone and then can be flatly placed on a table top in the using process, and meanwhile the zinc-air battery power bank has the advantages of being light, rapid in charging, low in price and convenient to carry.

Description

Technical Field

[0001] The invention relates to the technical field of power banks, and in particular to a power bank with an internal oxygen type zinc-air battery. Background Art

[0002] ‌‌‌Mobile phone power banks, commonly known as "power banks", are widely used and generally use lithium-ion batteries as the battery core. This type of mobile phone power bank can be charged and discharged repeatedly. Zinc-air batteries are low-cost, high in energy density, safe and pollution-free, making them very suitable for use in disposable mobile phone power banks.

[0003] In recent years, patent CN116345638A has announced a disposable mobile phone power bank that uses four zinc-air batteries connected in series and then connected to a charging cable, which greatly improves the practicality of zinc-air batteries for mobile phones. Existing zinc-air battery power banks make full use of the shell outside the battery shell as a reaction ventilation site, thereby increasing the reaction area of ​​the zinc-air battery as much as possible. For example, patent CN219627412U uses four batteries laid flat on the back of the mobile phone, and patent CN219268513U uses four batteries stacked in sequence. These solutions all use the shell on the larger area side of the zinc-air battery power bank as the reaction site for the air positive electrode.

[0004] However, in the process of use, people often encounter the situation where the zinc-air battery power bank is attached to the back of the mobile phone and placed flat on the table. This will block the air from entering the positive electrode surface, thereby affecting the use of the battery. For this reason, there is an urgent need for a zinc-air battery power bank that can be attached to the back of the mobile phone and can be placed flat on the table, while being small in size and not affecting the normal charging of the mobile phone. Summary of the invention

[0005] Based on this, it is necessary to provide an internal oxygen zinc-air battery power bank with a built-in positive electrode and side oxygen flow to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal oxygen type zinc-air battery power bank, comprising an upper shell, a first zinc-air battery module, a gas diffusion partition, a second zinc-air battery module, a lower shell and a charging cable, the first zinc-air battery module and the second zinc-air battery module are connected in series by two zinc-air batteries, the two zinc-air batteries of the first zinc-air battery module and the second zinc-air battery module are located in the same plane, the first zinc-air battery module and the second zinc-air battery module are placed in mirror symmetry, and the air positive electrode part is close to the mirror position, the gas diffusion partition is placed between the first zinc-air battery module and the second zinc-air battery module, the first zinc-air battery module and the second zinc-air battery module are connected in series and connected to the charging cable, and are placed together between the upper shell and the lower shell, and the side of the shell is air permeable.

[0007] Preferably, a double-sided tape is attached to the outer side of one side of the lower shell.

[0008] Preferably, the gas diffusion baffle is sponge.

[0009] Preferably, the gas diffusion baffle is a corrugated baffle.

[0010] Preferably, the charging cable is a single-head charging cable, and the interfaces include type-c, Apple and Android interfaces.

[0011] Preferably, the upper shell has an opening at the bottom and contains a cavity in the middle, and the side surfaces of the upper shell are air-permeable.

[0012] Preferably, the upper shell is made of non-woven fabric or a hard plastic shell with holes on the side.

[0013] Preferably, the two zinc-air batteries contained in the first zinc-air battery module and the second zinc-air battery module are first connected in series, leaving one positive electrode and one negative electrode; the negative electrode of the first zinc-air battery module is connected to the positive electrode of the second zinc-air battery module; the remaining positive electrode of the first zinc-air battery module is connected to the positive electrode of the single-end charging cable, and the remaining negative electrode of the second zinc-air battery module is connected to the negative electrode of the single-end charging cable.

[0014] Preferably, the zinc-air battery is a soft-pack zinc-air battery.

[0015] Preferably, the battery shell of the soft-pack zinc-air battery is a plastic film with a hole cut out in the middle, the diaphragm and the air positive electrode are fixed together with the battery shell, the battery cover is fixed around the battery shell, and the zinc negative electrode is placed between the diaphragm and the negative electrode collector.

[0016] It is understandable that for zinc-air battery power banks, since they need to come into contact with air during use, if the air positive electrode is placed on both sides of the product, even if there are air permeable channels on both sides, consumers will habitually cover the surface with various items during actual use, which will affect the reaction.

[0017] The beneficial effects of the present invention are: 1. The present invention proposes a zinc-air battery power bank with a built-in positive electrode and side oxygen ventilation, and proposes a new ventilation method, so that the zinc-air power bank can be attached to the back of a mobile phone for use, and can also be placed flat on a desktop.

[0018] 2. The zinc-air battery power bank of the present invention adopts a double-layer structure. Compared with the four-layer zinc-air battery structure, which is thick and difficult to carry, and the single-layer structure, which has a slow charging speed, the zinc-air battery power bank is light, charges quickly, is cheap and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of an internal oxygen zinc-air battery power bank.

[0020] Figure 2 Schematic diagram of the explosion structure of a soft-pack zinc-air battery.

[0021] Figure 3 This is a schematic diagram of the series connection of an internal oxygen zinc-air battery power bank.

[0022] The following are the descriptions of the reference numerals: 100: upper shell; 110: side of upper shell; 200: first zinc-air battery module; 210: battery cover; 220: negative electrode current collector; 221: negative electrode tab; 230: zinc negative electrode; 240: diaphragm; 250: battery shell; 260: air positive electrode; 261: positive electrode tab; 300: gas diffusion partition; 400: second zinc-air battery module; 500: lower shell; 600: charging cable. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The embodiment of the present invention provides an internal oxygen type zinc-air battery power bank, comprising an upper shell 100, a first zinc-air battery module 200, a gas diffusion baffle 300, a second zinc-air battery module 400, a lower shell 500 and a charging cable 600, wherein the first zinc-air battery module 200 and the second zinc-air battery module 400 are connected in series by two zinc-air batteries, the two zinc-air batteries of the first zinc-air battery module 200 and the second zinc-air battery module 400 are located in the same plane, the first zinc-air battery module 200 and the second zinc-air battery module 400 are placed in mirror symmetry, and the positive electrode 260 is close to the mirror surface, the gas diffusion baffle 300 is placed between the first zinc-air battery module 200 and the second zinc-air battery module 400, the first zinc-air battery module 200 and the second zinc-air battery module 400 are connected in series and connected to the charging cable 600, and are placed between the upper shell 100 together, and the side surface 110 of the upper shell is air permeable.

[0025] like Figure 2 As shown, the zinc-air battery in this embodiment is a rectangular zinc-air battery with a positive electrode distributed on one side, one side of which contains an air positive electrode 260 and the other side is an outer packaging shell 210, and the positive electrode tab 261 and the negative electrode tab 221 are on the same side.

[0026] Further, such as Figure 2 As shown, the first zinc-air battery module 200 is composed of two zinc-air batteries connected in series, the two zinc-air batteries are laid on the same plane, and the positive electrodes of the two zinc-air batteries face the same plane.

[0027] Furthermore, the second zinc-air battery module 400 has the same structure as the first zinc-air battery module 200 and is placed in a mirror-symmetrical manner with the first zinc-air battery module 200 when placed in the shell, with the air positive electrode 260 facing the inside of the shell.

[0028] Furthermore, the internal oxygen type zinc-air battery comprises an upper shell 100 , a first zinc-air battery module 200 , a gas diffusion separator 300 , a second zinc-air battery module 400 , a lower shell 500 and a charging cable 600 .

[0029] Furthermore, the upper shell 100 has an opening at the bottom and contains a cavity in the middle, and the side surface 110 of the upper shell is breathable. The upper shell 100 can be molded from breathable fabric.

[0030] In another embodiment, the upper shell 100 is a hard plastic shell with holes on the side.

[0031] It can be understood that the cavity inside the upper shell 100 is used to place the first zinc-air battery module 200 , the second zinc-air battery module 500 and the gas diffusion separator 300 .

[0032] Preferably, the lower shell 500 is made of ordinary plastic film.

[0033] Furthermore, the gas diffusion baffle 300 may be a sponge or a corrugated baffle material as shown in the figure.

[0034] It can be understood that the gas diffusion partition 300 is mainly used to guide the outside air to enter the surface of the zinc-air battery from the side surface 110 of the upper shell 100.

[0035] It can be understood that the gas diffusion separator 300 can also separate the first zinc-air battery membrane group 200 and the second zinc-air battery module 500 of the zinc-air battery to avoid short circuit.

[0036] Furthermore, the assembly process of the internal oxygen zinc-air battery power bank is as follows: The first step is to connect the first zinc-air battery membrane group 200 and the second zinc-air battery module 500 in series. The second step is to place the first zinc-air battery membrane group 200 and the second zinc-air battery module 500 flat on the table, with the positive air electrode 260 facing upward, and connect them in series with the charging cable 600. The third step is to fold up the first zinc-air battery membrane group 200 and the second zinc-air battery module 500, and place the gas diffusion separator 300 between the first zinc-air battery membrane group 200 and the second zinc-air battery module 500. Step 4: Place the connected battery module on the lower housing 500, which is covered by the upper housing 100. At the same time, heat press the lower housing 500 and the upper housing 100 around the edges, with a heat press width of ≤5mm. The fifth step is to place the above products in a heat-sealed bag and seal them to isolate them from air.

[0037] It can be understood that the charging cable is a single-head charging cable, and the interfaces include type-c, Apple and Android interfaces.

[0038] It can be understood that a general charging cable requires a pair of signal lines and a pair of charging lines, but the charging cable described in this embodiment only requires a pair of charging lines.

[0039] It can be understood that the specific series connection method of this embodiment is as follows Figure 3 As shown, the dotted arrows indicate specific serial connection positions. The two zinc-air batteries included in the first zinc-air battery module 200 and the second zinc-air battery module 400 are first connected in series, leaving a positive electrode 261 and a negative electrode 221 .

[0040] Furthermore, if Figure 3 As shown by the leftmost dotted arrow, the negative electrode 221 of the first zinc-air battery module 200 is connected to the positive electrode 261 of the second zinc-air battery module 400 .

[0041] Furthermore, the positive electrode 261 of the remaining first zinc-air battery module 200 is connected to the positive electrode of the single-end charging cable 600 , and the negative electrode 221 of the remaining second zinc-air battery module 400 is connected to the negative electrode of the single-end charging cable 600 .

[0042] Preferably, the zinc-air battery is a soft-pack zinc-air battery.

[0043] Preferably, the structure of the soft-pack zinc-air battery is as follows Figure 2 As shown, the battery shell 250 is a common plastic film with a hole cut out in the middle, and the diaphragm 240 and the air positive electrode 260 are fixed together with the battery shell 250, wherein the hole size of the diaphragm 240 is smaller than the holes of the diaphragm and the air positive electrode.

[0044] Furthermore, the battery cover 210 is fixed together with the battery housing 250 at all sides, wherein the zinc negative electrode 230 is placed between the separator 240 and the negative electrode current collector 220 .

[0045] It can be understood that any other zinc-air battery structure and battery thereof are also applicable to the present invention.

[0046] Understandably, in order to reduce the size of the battery, the air positive electrode side of conventional zinc-air battery power bank products is designed on one side of the shell. The shell is designed to be a porous structure that can directly contact the air. However, people often place one side of the shell on the desktop during use. Although some practices are to make some support points on both sides of the shell, this will add two gas diffusion channels and greatly increase the thickness of the product. At the same time, the upper and lower sides of the shell are easily blocked by users. If it is a rigid obstruction, it will not affect its breathability. However, if it encounters a flexible obstruction, such as when the user holds it in hand, places it on the sofa, or the user uses a flexible mobile phone case, the diffusion channel of the shell will be covered, affecting the charging effect.

[0047] To this end, the present invention proposes an internal oxygen zinc-air battery power bank, which adopts a side oxygen-through design, and completely solves the risk of the air holes on the upper and lower sides being blocked; at the same time, due to sharing a gas diffusion channel, the product thickness will be smaller than using air holes on the upper and lower sides; in addition, in terms of appearance, leaving holes on the side and increasing support points will make the product very ugly.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims, and the description and drawings can be used to interpret the content of the claims.

Claims

1. An internal oxygen zinc-air battery power bank, comprising an upper shell (100), a first zinc-air battery module (200), a gas diffusion baffle (300), a second zinc-air battery module (400), a lower shell (500) and a charging cable (600), characterized in that: The first zinc-air battery module (200) and the second zinc-air battery module (400) are composed of two zinc-air batteries connected in series. The two zinc-air batteries of the first zinc-air battery module (200) and the second zinc-air battery module (400) are located in the same plane. The first zinc-air battery module (200) and the second zinc-air battery module (400) are placed in a mirror-symmetrical manner. The positive air electrode (260) is located close to the mirror surface. The gas diffusion partition (300) is placed between the first zinc-air battery module (200) and the second zinc-air battery module (400). The first zinc-air battery module (200) and the second zinc-air battery module (400) are connected in series and connected to the charging line (600). They are placed between the upper shell (100) and the lower shell (500). The side surface (110) of the shell is air permeable.

2. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: Double-sided adhesive is attached to the outer side of one side of the lower shell (500).

3. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The gas diffusion baffle (400) is a sponge.

4. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The gas diffusion baffle (400) is a corrugated baffle.

5. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The charging cable (600) is a single-ended charging cable, and its interfaces include type-c, Apple and Android interfaces.

6. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The upper shell (100) has an opening at the bottom and contains a cavity in the middle, and the side surface of the upper shell (100) is air permeable.

7. The internal oxygen zinc-air battery power bank according to claim 6, characterized in that: The upper shell (100) is made of non-woven fabric or a hard plastic shell with holes on the side.

8. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The two zinc-air batteries included in the first zinc-air battery module (200) and the second zinc-air battery module (400) are first connected in series, leaving a positive electrode (261) and a negative electrode (221); the negative electrode (221) of the first zinc-air battery module (200) is connected to the positive electrode (261) of the second zinc-air battery module (400); the remaining positive electrode (261) of the first zinc-air battery module (200) is connected to the positive electrode of the single-end charging cable (600), and the remaining negative electrode (221) of the second zinc-air battery module (400) is connected to the negative electrode of the single-end charging cable (600).

9. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The zinc-air battery is a soft-pack zinc-air battery.

10. The internal oxygen zinc-air battery power bank according to claim 1, characterized in that: The battery shell (250) of the soft-pack zinc-air battery is a plastic film with a hole cut out in the middle; the diaphragm (240) and the air positive electrode (260) are fixed together with the battery shell (250); the battery cover (210) is fixed together with the battery shell (250) around; and the zinc negative electrode (230) is placed between the diaphragm (240) and the negative electrode current collector (220).

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