CN219371262U

CN219371262U - Nickel-hydrogen battery with explosion-proof structure

Info

Publication number: CN219371262U
Application number: CN202320325980.7U
Authority: CN
Inventors: 王晓金
Original assignee: Shenzhen Huipu Energy Technology Co ltd
Current assignee: Shenzhen Huipu Energy Technology Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-18
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a nickel-hydrogen battery with an explosion-proof structure, and relates to the technical field of nickel-hydrogen batteries. The battery comprises a shell and a battery body, wherein the battery body is arranged in the shell, one end of the battery body is connected with a positive electrode, the other end of the battery body is connected with a negative electrode, a gap is formed between the inner wall of the shell and the battery body, and the gap is a buffer cavity; the buffer cavity is internally provided with a plurality of explosion-proof pipes, the explosion-proof pipes are of box structures with transparent bottom surfaces, and shrinkage holes are formed in the positions of the shells corresponding to the explosion-proof pipes. The utility model provides a nickel-metal hydride battery with an explosion-proof structure, wherein a buffer cavity is arranged between a shell and a battery body and is used for collecting gas, a plurality of explosion-proof pipes are arranged at the buffer cavity, when the battery body generates gas due to charging, the pressure in the buffer cavity is increased, air can be discharged through air holes on the explosion-proof pipes, the pressure in the buffer cavity is reduced, and the condition that explosion occurs due to the increase of the gas pressure caused by charging can be avoided.

Description

Nickel-hydrogen battery with explosion-proof structure

Technical Field

The utility model relates to the technical field of nickel-hydrogen batteries, in particular to a nickel-hydrogen battery with an explosion-proof structure.

Background

Nickel-metal hydride batteries are a type of battery that has good performance. Nickel-hydrogen batteries are classified into high-voltage nickel-hydrogen batteries and low-voltage nickel-hydrogen batteries.

In practical use of the nickel-metal hydride battery, a certain amount of gas is generated in the battery case due to the charge and discharge operation inside the battery, thereby increasing the gas pressure inside the battery. In addition, the internal structure of the existing nickel-metal hydride battery is constant, when the internal air pressure is increased, explosion is easy to occur, and potential safety hazards are easy to embed.

Disclosure of Invention

The utility model provides a nickel-hydrogen battery with an explosion-proof structure, which solves the technical problems proposed by the background technology.

In order to solve the technical problems, the nickel-metal hydride battery with the explosion-proof structure comprises a shell and a battery body, wherein the battery body is arranged in the shell, one end of the battery body is connected with a positive electrode, the other end of the battery body is connected with a negative electrode, a gap exists between the inner wall of the shell and the battery body, and the gap is a buffer cavity;

the anti-explosion device comprises a shell, wherein the shell is provided with a plurality of anti-explosion tubes, the anti-explosion tubes are of a box structure with a transparent bottom surface, shrinkage holes are formed in the positions, corresponding to the anti-explosion tubes, of the shell, the anti-explosion tubes and the shrinkage holes can slide relatively, air holes are formed in the anti-explosion tubes, the air holes are formed in any one or more side surfaces of the anti-explosion tubes except the top surface and the bottom surface, the anti-explosion tubes are connected with a lower frame, the lower frame is connected with an elastic plate, and the lower frame is connected with the shell through the elastic plate.

Preferably, the buffer chamber is located at the top of the interior of the housing.

Preferably, the other end of the elastic plate is arranged on the upper frame, and the upper frame is attached to the inner wall of the shell.

Preferably, the explosion-proof pipe bottom is provided with the cushion, and the specific quantity of cushion is two, and two cushions correspond to be distributed, and two cushions can block up or open the penetrating hole in explosion-proof pipe bottom, and the connecting rope is installed at the cushion top, and the connecting rope is installed on the explosion-proof pipe inner wall.

Preferably, the anti-theft device further comprises a protection plate, wherein the protection plate is located on the upper side of the shrinkage hole, the protection plate is arranged on the shell through a lantern ring, a groove is formed in the position, corresponding to the shrinkage hole, of the protection plate, and the size of the groove is larger than that of the shrinkage hole.

Compared with the related art, the nickel-hydrogen battery with the explosion-proof structure has the following beneficial effects:

the utility model provides a nickel-metal hydride battery with an explosion-proof structure, wherein a buffer cavity is arranged between a shell and a battery body and is used for collecting gas, a plurality of explosion-proof pipes are arranged at the buffer cavity, when the battery body generates gas due to charging, the pressure in the buffer cavity is increased, air can be discharged through air holes on the explosion-proof pipes, the pressure in the buffer cavity is reduced, and the condition that explosion occurs due to the increase of the gas pressure caused by charging can be avoided.

The utility model provides a nickel-metal hydride battery with an explosion-proof structure, which is characterized in that two soft cushions are arranged at the bottom of an explosion-proof pipe, and the soft cushions can be used together with an elastic plate for relieving when the air pressure in a buffer cavity is increased, so that the air in the buffer cavity can be discharged when the thickness of the elastic plate, the thickness, the weight and the like of the soft cushions are increased or decreased to set multiple air pressures, and the regulation and control are more convenient.

Drawings

Fig. 1 is a schematic structural view of a nickel-metal hydride battery with an explosion-proof structure.

Fig. 2 is a bottom view of a nickel-metal hydride battery with an explosion-proof structure.

Fig. 3 is a schematic view showing an internal structure of a nickel-metal hydride battery having an explosion-proof structure.

Fig. 4 is a schematic view showing an internal structure of a nickel-hydrogen battery having an explosion-proof structure.

Reference numerals in the drawings: 1. a housing; 2. a battery body; 3. a positive electrode; 4. a negative electrode; 5. a buffer chamber; 6. explosion-proof pipe; 7. a shrinkage cavity; 8. ventilation holes; 9. a lower frame; 10. an elastic plate; 11. an upper frame; 12. a soft cushion; 13. a connecting rope; 14. a protection plate; 15. a collar; 16. a groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is given by figures 1-4, which comprises a shell 1 and a battery body 2, wherein the battery body 2 is arranged in the shell 1, one end of the battery body 2 is connected with a positive electrode 3, the other end of the battery body 2 is connected with a negative electrode 4, a gap exists between the inner wall of the shell 1 and the battery body 2, the gap is a buffer cavity 5, the buffer cavity 5 is positioned at the top of the inside of the shell 1, when the battery body 2 is connected with electric equipment, the positive electrode 3 and the negative electrode 4 are respectively attached to the appointed part of the electric equipment, the positive electrode 3 protrudes out of a part of the shell 1, the negative electrode 4 is mostly flush with the shell 1, the buffer cavity 5 is arranged at the top of the inside of the shell 1, and the part does not directly prop against the electric equipment, so that the part does not need to bear large force, and is not easy to bend due to external force;

the buffer cavity 5 is internally provided with a plurality of explosion-proof pipes 6, the explosion-proof pipes 6 are of a box body structure with a transparent bottom surface, the position of the shell 1 corresponding to the explosion-proof pipes 6 is provided with shrinkage holes 7, the explosion-proof pipes 6 and the shrinkage holes 7 can slide relatively, the explosion-proof pipes 6 are provided with ventilation holes 8, the ventilation holes 8 are arranged on any one or more of four sides of the explosion-proof pipes 6 except the top surface, the explosion-proof pipes 6 are connected with a lower frame 9, the lower frame 9 is connected with an elastic plate 10, the lower frame 9 is connected with the shell 1 through the elastic plate 10, the other end of the elastic plate 10 is arranged on an upper frame 11, and the upper frame 11 is attached to the inner wall of the shell 1; the buffer cavity 5 is arranged between the shell 1 and the battery body 2 and is used for gathering gas, the buffer cavity 5 is provided with the explosion-proof pipes 6, when the battery body 2 generates gas due to charging, the pressure in the buffer cavity 5 is increased, the air enters the explosion-proof pipes 6 and extrudes the explosion-proof pipes 6, the explosion-proof pipes 6 extrude the elastic plate 10 to move upwards under the action of air pressure, the air holes 8 on the side surfaces of the explosion-proof pipes 6 extend out of the shrinkage holes 7, the gas in the buffer cavity 5 is discharged at the moment, the pressure in the buffer cavity 5 is reduced, the explosion-proof pipes 6 finally fall under the action of the elasticity of the elastic plate 10, the air holes 8 are blocked, and thus, the pressure inside the shell 1 can be automatically adjusted, and the condition of explosion due to the increase of the gas pressure caused by charging can not occur;

the bottom of the explosion-proof pipe 6 is provided with two cushions 12, the specific number of the cushions 12 is two, the two cushions 12 are correspondingly distributed, the two cushions 12 can block or open the through holes at the bottom of the explosion-proof pipe 6, the top of the cushion 12 is provided with a connecting rope 13, and the connecting rope 13 is arranged on the inner wall of the explosion-proof pipe 6; when the air pressure in the buffer cavity 5 is increased, the two cushions 12 are extruded to enable the two cushions 12 to be far away from each other, so that air can enter the explosion-proof pipe 6, further the explosion-proof pipe 6 is extruded and is matched with the elastic plate 10 to be used together, and then the air in the buffer cavity 5 is discharged when the air pressure is set by increasing or decreasing the thickness of the elastic plate 10 and the thickness, the weight and the like of the cushions 12, so that the regulation and control are more convenient;

still include guard plate 14, guard plate 14 is located shrinkage cavity 7 upside, and guard plate 14 passes through lantern ring 15 to be installed on casing 1, and guard plate 14 corresponds shrinkage cavity 7's position department and is provided with recess 16, and recess 16 size is greater than shrinkage cavity 7's size.

Working principle:

through setting up buffer chamber 5 between casing 1 and the battery body 2 for gathering gas, buffer chamber 5 department sets up a plurality of explosion-proof pipes 6, when the battery body 2 produced gas because of charging, the pressure in buffer chamber 5 increases, the air enters into explosion-proof pipe 6 and extrudes explosion-proof pipe 6, explosion-proof pipe 6 extrudees elastic plate 10 to the upside under the effect of atmospheric pressure and removes, bleeder vent 8 on the explosion-proof pipe 6 side stretches out in the shrinkage cavity 7, the gas in buffer chamber 5 is discharged this moment, the pressure in buffer chamber 5 reduces, finally explosion-proof pipe 6 falls under the elasticity effect of elastic plate 10, bleeder vent 8 is plugged up, so can the inboard pressure of automatically regulated casing 1, the condition that explosion takes place because of the gas pressure increase that the charging leads to does not appear.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a nickel-metal hydride battery with explosion-proof structure, includes casing (1), battery body (2), its characterized in that, battery body (2) are installed in casing (1), and positive pole (3) are connected to battery body (2) one end, and negative pole (4) are connected to battery body (2) other end, there is the clearance between casing (1) inner wall and battery body (2), and the clearance is buffer chamber (5);

be provided with a plurality of explosion-proof pipe (6) in cushion chamber (5), explosion-proof pipe (6) are the penetrating box structure in bottom surface, and the position department that casing (1) corresponds explosion-proof pipe (6) is provided with shrinkage cavity (7), but explosion-proof pipe (6) and shrinkage cavity (7) relative slip, be provided with bleeder vent (8) on explosion-proof pipe (6), bleeder vent (8) set up on one or more of four sides except that top surface, bottom surface in explosion-proof pipe (6), explosion-proof pipe (6) connect lower frame (9), and elastic plate (10) are connected in lower frame (9), and lower frame (9) pass through elastic plate (10) and connect casing (1).

2. A nickel-hydrogen battery with explosion-proof structure according to claim 1, characterized in that the buffer chamber (5) is located at the top of the inside of the housing (1).

3. The nickel-metal hydride battery with the explosion-proof structure according to claim 1, wherein the other end of the elastic plate (10) is mounted on an upper frame (11), and the upper frame (11) is attached to the inner wall of the housing (1).

4. The nickel-metal hydride battery with the explosion-proof structure according to claim 1, wherein the bottom of the explosion-proof tube (6) is provided with two cushions (12), the specific number of the cushions (12) is two, the two cushions (12) are correspondingly distributed, the two cushions (12) can plug or open the through holes at the bottom of the explosion-proof tube (6), the top of the cushion (12) is provided with a connecting rope (13), and the connecting rope (13) is arranged on the inner wall of the explosion-proof tube (6).

5. The nickel-metal hydride battery with the explosion-proof structure according to claim 1, further comprising a protection plate (14), wherein the protection plate (14) is located on the upper side of the shrinkage hole (7), the protection plate (14) is mounted on the shell (1) through a collar (15), a groove (16) is formed in the position, corresponding to the shrinkage hole (7), of the protection plate (14), and the size of the groove (16) is larger than that of the shrinkage hole (7).