CN111293341A

CN111293341A - Miniature fuel cell structure

Info

Publication number: CN111293341A
Application number: CN202010225949.7A
Authority: CN
Inventors: 付明竹; 李世明
Original assignee: Jiangxi Yotteo Auto Technology Co ltd
Current assignee: Jiangxi Yotteo Auto Technology Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-06-16

Abstract

The invention discloses a micro fuel cell structure. The micro fuel cell structure comprises a cell shell, wherein the side wall of the cell shell is provided with a plurality of holes, the inside of the cell shell is provided with an air cavity, the bottom end of the cell shell is provided with a negative electrode, the top end of the battery shell is clamped with the insulating block, the middle part of the insulating block is provided with a positive electrode, an air tap is arranged in the positive electrode, the anode is connected with the inner side wall of the sealing assembly in a seamless manner, the side wall at the bottom end of the sealing assembly is connected with the inner side wall of the battery shell in a seamless manner, the inner side wall of the anode is connected with a gas vessel in a sliding manner, the bottom surface of the gas vessel is fixedly connected with a sliding rod, and the side wall of the slide bar is sleeved with a spring, the top end of the spring is propped against the bottom surface of the gas vessel, the bottom surface of the spring is propped against the limiting block, the sliding rod is connected with the inner side wall of the limiting block in a sliding mode, and the micro fuel cell structure has the function of reducing air leakage.

Description

Miniature fuel cell structure

Technical Field

The invention relates to the technical field of fuel cells, in particular to a micro fuel cell structure.

Background

With the rapid development of equipment, a fuel cell is used as a main energy source in the future, the energy density of the fuel cell is tens of times of that of a lithium ion battery, and if the fuel cell is used on a smart phone, the principle of the fuel cell can maintain a near-one-week endurance is to generate energy by burning hydrogen so as to provide power. However, the fuel cell cannot be reduced in size, is used in the automobile field in most cases, and is prone to air leakage after being inflated, which causes unnecessary loss.

Therefore, it is necessary to provide a new micro fuel cell structure to solve the above technical problems.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a micro fuel cell structure for reducing air leakage.

The invention provides a micro fuel cell structure comprising: the battery case is characterized in that a porous hole is formed in the side wall of the battery case, an air cavity is arranged inside the battery case, the bottom end of the battery case is arranged as a negative electrode, the top end of the battery case is clamped with an insulating block, the middle position of the insulating block is arranged as a positive electrode, an air tap is arranged inside the positive electrode, the positive electrode is in seamless connection with the inner side wall of the sealing assembly, the bottom side wall of the sealing assembly is in seamless connection with the inner side wall of the battery case, a gas vessel is connected to the inner side wall of the positive electrode in a sliding mode, a sliding rod is fixedly connected to the bottom surface of the gas vessel, a spring is sleeved on the side wall of the sliding rod, the top end of the spring is abutted to the bottom surface of the gas vessel, the bottom surface of the spring is abutted to a limiting block, the sliding rod is connected, two carbon papers, a catalyst and a proton exchange membrane are respectively arranged on the inner side wall of the battery shell, and a first air hole is formed in the anode.

Preferably, the two pieces of carbon paper are respectively attached to the left side wall of the catalyst and the right side wall of the proton exchange membrane, and the right side wall of the catalyst is attached to the left side wall of the proton exchange membrane.

Preferably, the side wall of the air plug is an arc surface, and the diameter of the side wall of the air plug is smaller than that of the bottom surface of the air plug.

Preferably, the diameter of the bottom surface of the air plug is larger than that of the first air hole, and the bottom end of the first air hole is arc-shaped.

Preferably, a plurality of the holes are equidistantly arranged on the side wall of the battery case.

Preferably, the inside of stopper is provided with the second gas pocket, just the slide bar runs through in the middle of the stopper.

Compared with the related art, the micro fuel cell structure provided by the invention has the following beneficial effects:

1. the invention provides a micro fuel cell structure which has compact structure, small size and micro size, and reduces the volume of the traditional fuel cell through the hydrogen reaction of the hole on the side wall of the cell shell and the air cavity in the inner cavity of the cell shell.

2. The invention provides a micro fuel cell structure, which is characterized in that an air plug capable of stretching and resetting is arranged in an air tap. When the air faucet is not inflated, the air plug can tightly plug the air faucet under the action of the spring, so that the inflated air is not easy to leak out, the loss is reduced, and the fire disaster is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view illustrating the internal structure of a battery case according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

Reference numbers in the figures: 1. a battery case; 2. a hole; 3. a positive electrode; 4. a negative electrode; 5. an insulating block; 6. an air tap; 7. an air cavity; 8. a seal assembly; 9. carbon paper; 10. a catalyst; 11. a proton exchange membrane; 12. a gas vessel; 13. a spring; 14. a limiting block; 15. a slide bar; 16. an air lock; 17. a first air hole; 18. a second air hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a micro fuel cell structure as shown in figures 1-3, which comprises a cell shell 1, the side wall of the cell shell 1 is provided with a plurality of holes 2, the holes 2 are arranged on the side wall of the cell shell 1 at equal intervals, in order to enable oxygen to enter the cavity uniformly, an air cavity 7 is arranged inside the cell shell 1, the bottom end of the cell shell 1 is provided with a negative electrode 4, the top end of the cell shell 1 is clamped with an insulating block 5, the middle part of the insulating block 5 is provided with an anode 3, an air nozzle 6 is arranged inside the anode 3, the anode 3 is in seamless connection with the inner side wall of a sealing component 8, the side wall of the bottom end of the sealing component 8 is in seamless connection with the inner side wall of the cell shell 1, the inner side wall of the anode 3 is connected with a gas cell 12 in a sliding manner, the bottom surface of the gas cell 12 is fixedly connected with a sliding rod 15, the bottom surface of the spring 13 is abutted against the limiting block 14, the slide rod 15 is slidably connected with the inner side wall of the limiting block 14, the inside of the limiting block 14 is provided with a second air hole 18, the slide rod 15 penetrates through the middle part of the limiting block 14, in order to enable hydrogen to pass through the limiting block 14, the limiting block 14 is fixedly connected with the inner side wall of the anode 3, the bottom surface of the slide rod 15 is fixedly connected with an air plug 16, the side wall of the air plug 16 is in an arc shape, the diameter of the side wall of the air plug 16 is smaller than that of the bottom surface of the air plug 16, in order to enable the air plug 16 to block the opening of the first air hole 17, the diameter of the bottom surface of the air plug 16 is larger than that of the first air hole 17, the bottom end of the first air hole 17 is in an arc shape, the airtightness of the air plug 16 and the first air hole 17 is ensured, the inner side wall of the battery shell 1 is respectively provided, and the right side wall of the catalyst 10 is attached to the left side wall of the proton exchange membrane 11, and in order to enable the hydrogen inside the air cavity 7 to react with the oxygen, the anode 3 is internally provided with a first air hole 17.

The working principle of the micro fuel cell structure provided by the invention is as follows:

before use, the fuel cell needs to be aerated, hydrogen is introduced into the second air hole 18 through the air nozzle 6, the aerated gas increases the pressure at the upper end of the gas container 12 along with aeration, the hydrogen makes the gas container 12 slide downwards under the action of the pressure, the slide rod 15 pushes the air plug 16 to separate from the bottom air hole of the second air hole 18, the hydrogen of the compression spring 13 passes through the first air hole 17 and the second air hole 18 on the limiting block 14 and is finally introduced into the air cavity 7, after aeration is finished, when the aeration is stopped, the pressure at the upper end of the gas container 12 is reduced, the gas container 12 is reset under the action of the elastic potential energy of the spring 13, the air plug 16 blocks the opening of the second air hole 18 again, the aerated gas cannot escape, when in use, oxygen passes through the hole 2 on the battery shell 1 and generates electrochemical reaction with the hydrogen fuel in the air cavity 7 under the action of the proton exchange membrane 11 and the catalyst 10, thereby generating electrical energy.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A micro fuel cell structure comprising a cell housing (1), characterized in that: porous hole (2) has been seted up to the lateral wall of battery case (1), the inside of battery case (1) is provided with air cavity (7), the bottom of battery case (1) sets up to negative pole (4), just battery case (1) top and insulating block (5) looks block, insulating block (5) are located between two parties and are established to anodal (3), anodal (3) inside is provided with air cock (6), just seamless connection between anodal (3) and the inside wall of seal assembly (8), seamless connection between the bottom lateral wall of seal assembly (8) and the inside wall of battery case (1), the inside wall sliding connection of anodal (3) has gas ware (12), the bottom surface rigid coupling of gas ware (12) has slide bar (15), just spring (13) has been cup jointed to the lateral wall of slide bar (15), spring (13) top and the bottom surface of gas ware (12) offset, the bottom surface and the stopper (14) of spring (13) are inconsistent, the inside wall sliding connection of slide bar (15) and stopper (14), fixed connection between stopper (14) and anodal (3) inside wall, the bottom surface rigid coupling of slide bar (15) has air lock (16), two carbon paper (9), catalyst (10) and proton exchange membrane (11) are installed respectively to the inside wall of battery case (1), anodal (3) inside is provided with first gas pocket (17).

2. The micro fuel cell structure according to claim 1, wherein the two carbon papers (9) are respectively attached between a left side wall of the catalyst (10) and a right side wall of the proton exchange membrane (11), and the right side wall of the catalyst (10) is attached to the left side wall of the proton exchange membrane (11).

3. The micro fuel cell structure of claim 1, wherein the side wall of the air plug (16) is cambered, and the diameter of the side wall of the air plug (16) is smaller than the diameter of the bottom surface of the air plug (16).

4. A micro fuel cell structure according to claim 1, wherein the diameter of the bottom surface of the air plug (16) is larger than the diameter of the first air hole (17), and the bottom end of the first air hole (17) is curved.

5. A micro fuel cell structure according to claim 1, characterized in that a plurality of said holes (2) are arranged equidistantly on the side wall of the cell casing (1).

6. The micro fuel cell structure according to claim 1, wherein a second air hole (18) is formed inside the stopper (14), and the sliding rod (15) penetrates through the center of the stopper (14).