High-strength storage battery shell

Abstract

The high-strength storage battery shell comprises a storage battery shell body, an inner groove is formed in the inner wall of the storage battery shell body, a buffer base plate is fixedly connected to the inner wall of the inner groove, an anti-explosion plate is fixedly connected to the surface of the buffer base plate, and the surface of the anti-explosion plate abuts against the inner wall of the inner groove in an anti-skid mode. A hidden groove is formed in the top, close to the inner wall of the storage battery shell body, of the storage battery shell body, a flame sensor is fixedly mounted on the inner wall of the hidden groove, and a winding rod with a torsional spring is rotationally connected to the top, close to the inner wall of the inner groove, of the inner groove through a bearing. According to the utility model, through the matching of the structures, the explosion-proof plate with the buffering and explosion-proof functions is arranged in the storage battery shell, an alarm for reminding after combustion in the storage battery shell is arranged, and a combustible barrier burnt out by flame combustion discharges flame-retardant substances for flame suppression protection; and the internal flame-retardant, flame-retardant and explosion-proof protection effect of the storage battery shell can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shells, in particular to a high-strength battery shell. Background Art

[0002] The battery will generate heat during operation. If the heat is not dissipated in time, it will not only affect the working state of the battery but also may cause safety accidents. Therefore, it is very necessary to set the battery shell outside the battery.

[0003] For example, a battery housing with patent number CN202121583658.1 includes a bottom plate and a side plate made of plastic, and a plurality of partition plates that divide the battery housing into a plurality of single cells, and a heat-conducting metal plate is embedded on the outer side of the bottom plate and in the partition plate;

[0004] Since the battery casing is installed inside the battery, the battery will generate more heat after long-term use, and the battery may even catch fire and self-ignite after long-term use, which brings certain adverse effects to actual use, so improvement is needed. Summary of the invention

[0005] The purpose of the utility model is to provide a high-strength battery casing, which has the advantages of being provided with an explosion-proof plate with buffer explosion-proof function inside the battery casing, an alarm reminder after combustion inside the battery casing, and the flame retardant being discharged for flame suppression protection after the combustible barrier burned away by the flame, which brings certain favorable effects to actual use and solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength battery shell, comprising a battery shell body, the inner wall of the battery shell body is provided with an inner groove, the inner wall of the inner groove is fixedly connected with a buffer pad, the surface of the buffer pad is fixedly connected with an explosion-proof plate, the surface of the explosion-proof plate and the inner wall of the inner groove are non-slip abutted, a hidden groove is provided on the battery shell body near the top of its inner wall, a flame sensor is fixedly installed on the inner wall of the hidden groove, a winding rod with a torsion spring is rotatably connected to the top of the inner groove near its inner wall through a bearing, a metal tape is fixedly connected to the surface of the winding rod, a flame-retardant sand cavity is provided inside the metal tape, a tough combustible sealing tape is fixedly connected to the inner wall of the flame-retardant sand cavity, a combustible thin plate is fixedly connected between the top of the explosion-proof plate and the top of the inner wall of the inner groove, and one end of the metal tape is fixedly connected with an abutment plate, and the surface of the abutment plate abuts against the surface of the combustible thin plate.

[0007] Preferably, a spring telescopic rod is fixedly connected to the surface of the explosion-proof plate, and one end of the spring telescopic rod is fixedly connected to the surface of the inner wall of the inner groove.

[0008] Preferably, the number of the spring telescopic rods is at least four, and the at least four spring telescopic rods are evenly distributed around the explosion-proof plate.

[0009] Preferably, the main body of the explosion-proof panel is a seismic-resistant main board, a surface of the seismic-resistant main board is connected with a locking component, and a surface of the locking component is connected with an explosion-proof and flame-retardant panel.

[0010] Preferably, the locking assembly includes a magnetic locking plate and a magnetic locking groove, the magnetic locking plate is fixedly connected to the surface of the explosion-proof and flame-retardant plate, the magnetic locking groove is opened on the surface of the seismic-resistant main board close to its circumference, and the inner wall of the magnetic locking groove and the surface of the magnetic locking plate are magnetically snap-fitted and adapted.

[0011] Preferably, a carbon dioxide storage chamber with a combustible film sleeve is opened on the surface of the explosion-proof plate, and the carbon dioxide storage chamber is completely located inside the explosion-proof and flame-retardant plate.

[0012] Preferably, a raised sliding ball is fixedly connected to the surface of the metal coil, the outer surface of the raised sliding ball is coated with a wear-resistant coating, and the surface of the raised sliding ball is slidably connected to a side of the metal coil away from the flame-retardant sand cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the battery shell body can be installed inside the battery shell body, and a gap can be set between the battery and its wall plate inside the battery shell body to avoid the battery and the inner wall plate of the battery shell body from contacting each other. However, since the battery may catch fire and self-ignite after long-term use, if the battery shell body catches fire inside, a flame will be generated and transmitted to the flame sensor for alarm. The flame will burn the combustible film sleeve on the carbon dioxide storage cavity, so that the carbon dioxide inside can be discharged into the interior of the battery shell body, thereby playing a role in the battery shell body. The internal flame retardant effect, if the flame continues to burn and rises upward, the combustible thin plate can be burned and damaged, so that the abutting plate is not restricted by resistance and leaks out at the contact point between the inner groove on the battery shell body and its inner wall, so that the torsion spring on the winding rod can release its elastic restoring force, and the metal tape on it is thrown out to abut against the battery, and the tough combustible sealing tape on the flame retardant sand cavity on the metal tape is burned and damaged, and the non-flammable flame retardant sand inside it is unloaded to cover the flame burning at the bottom, which can suppress the continued burning of the flame to a large extent and even expand the fire, avoiding the explosion hazard caused by the subsequent battery combustion;

[0015] In the utility model, the explosion-proof plate can play the role of explosion-proof shielding. If the battery in the battery shell body explodes, the shell will pop out, and the popped-out shell will hit the explosion-proof plate to unload the force. That is, the spring telescopic rod and the buffer pad are used to buffer the force unloading effect after the explosion-proof plate is impacted. Under the locking action of the locking component, the explosion-proof flame-retardant plate on the anti-slide plate is replaced in the burning and explosion state, so as to achieve the internal flame retardant, flame suppression and explosion-proof protection effect of the battery shell. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0018] Figure 3 It is a structural schematic diagram of the reeling rod in the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the explosion-proof plate in the utility model;

[0020] Figure 5 It is a schematic diagram of the partial structure of the metal coil in the utility model;

[0021] Figure 6 It is an enlarged view of point A of the utility model;

[0022] Figure 7 It is an enlarged view of point B of the present utility model.

[0023] In the figure: 1. Battery shell body; 2. Inner groove; 3. Buffer pad; 4. Explosion-proof plate; 5. Flame sensor; 6. Winding rod; 7. Metal tape; 8. Flame-retardant sand cavity; 9. Tough combustible sealing tape; 10. Combustible thin plate; 11. Abutment plate; 12. Spring telescopic rod; 13. Explosion-proof and flame-retardant plate; 14. Magnetic locking plate; 15. Magnetic locking groove; 16. Carbon dioxide storage cavity; 17. Raised sliding ball. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1 Please refer to Figure 1-7The utility model provides a technical solution: a high-strength battery shell, comprising a battery shell body 1, the inner wall of the battery shell body 1 is provided with an inner groove 2, the inner wall of the inner groove 2 is fixedly connected with a buffer plate 3, the surface of the buffer plate 3 is fixedly connected with an explosion-proof plate 4, the surface of the explosion-proof plate 4 and the inner wall of the inner groove 2 are non-slip abutted, the battery shell body 1 is provided with a hidden groove near the top of its inner wall, the inner wall of the hidden groove is fixedly installed with a flame sensor 5, the inner The top of the groove 2 near its inner wall is rotatably connected to a winding rod 6 with a torsion spring through a bearing, and a metal tape 7 is fixedly connected to the surface of the winding rod 6. A flame-retardant sand cavity 8 is opened inside the metal tape 7, and a tough combustible sealing tape 9 is fixedly connected to the inner wall of the flame-retardant sand cavity 8. A combustible thin plate 10 is fixedly connected between the top of the explosion-proof plate 4 and the top of the inner wall of the inner groove 2, and an abutment plate 11 is fixedly connected to one end of the metal tape 7, and the surface of the abutment plate 11 abuts against the surface of the combustible thin plate 10.

[0026] Furthermore, a spring telescopic rod 12 is fixedly connected to the surface of the explosion-proof plate 4, and one end of the spring telescopic rod 12 is fixedly connected to the surface of the inner wall of the inner groove 2. The number of the spring telescopic rods 12 is at least four, and the number of the spring telescopic rods 12 is at least four and evenly distributed in the circumference of the explosion-proof plate 4, that is, the spring telescopic rods 12 are used to buffer and unload the explosion-proof plate 4 after it is impacted.

[0027] Furthermore, a raised sliding ball 17 is fixedly connected to the surface of the metal tape 7, the outer surface of the raised sliding ball 17 is coated with a wear-resistant coating, and the surface of the raised sliding ball 17 is slidably connected to the side of the metal tape 7 away from the flame retardant sand cavity 8. The addition of the raised sliding ball 17 can achieve smooth sliding during the discharge of the metal tape 7, thereby avoiding wear and tear on the tough combustible sealing tape 9 in the flame retardant sand cavity 8, which may cause the flame retardant sand inside to leak out prematurely.

[0028] Example 2: Please refer to Figure 1-7The difference between this embodiment and embodiment 1 is that the main body of the explosion-proof plate 4 is a seismic main board, the surface of the seismic main board is connected with a locking assembly, and the surface of the locking assembly is connected with an explosion-proof flame-retardant plate 13. The locking assembly includes a magnetic locking plate 14 and a magnetic locking groove 15, the magnetic locking plate 14 is fixedly connected to the surface of the explosion-proof flame-retardant plate 13, the magnetic locking groove 15 is provided on the surface of the seismic main board close to its circumference, the inner wall of the magnetic locking groove 15 and the surface of the magnetic locking plate 14 are magnetically snapped and adapted, and under the locking action of the magnetic locking plate 14 and the magnetic locking groove 15, the explosion-proof flame-retardant plate on the anti-slide plate can be replaced in the burning and explosion state. A carbon dioxide storage chamber 16 with a combustible film sleeve is opened on the surface of the explosion-proof plate 4, and the carbon dioxide storage chamber 16 is completely located inside the explosion-proof flame-retardant plate 13. The flame burning will burn the combustible film sleeve on the carbon dioxide storage chamber 16, so that the carbon dioxide inside it can be discharged into the interior of the battery casing body 1, thereby achieving a flame retardant effect inside the battery casing body 1.

[0029] Working principle: When this high-strength battery casing is in use, the entire battery casing body 1 can be used to install the battery inside. A gap can be set inside the battery casing body 1 between the battery and its wall plate to avoid contact between the battery and the inner wall plate of the battery casing body 1. However, since the battery may catch fire and self-ignite after long-term use, if a fire occurs inside the battery casing body 1, a flame will be generated and transmitted to the flame sensor 5 for alarm. The flame will burn the combustible film sleeve on the carbon dioxide storage chamber 16, so that the carbon dioxide inside can be discharged into the interior of the battery casing body 1, thereby achieving a flame retardant effect inside the battery casing body 1. If the flame continues to burn and rises upward, the combustible thin plate 10 can be burned and damaged, so that the abutment plate 11 is not limited by resistance. The system leaks out at the contact point between the inner groove 2 on the battery shell body 1 and its inner wall, so that the torsion spring on the winding rod 6 can release the elastic restoring force thereon, and the metal tape 7 on it is thrown out to abut against the battery, and the tough combustible sealing tape 9 on the flame retardant sand cavity 8 on the metal tape 7 is burned and damaged, and the non-flammable flame retardant sand inside it is unloaded to cover the flame burning at the bottom, which can suppress the continued burning of the flame to a large extent and even expand the fire, and avoid the explosion hazard caused by subsequent battery combustion. If the battery in the battery shell body 1 explodes, it will jump out of the shell, and the popped-out shell will hit the explosion-proof plate 4 to unload the force, that is, the spring telescopic rod 12 and the buffer pad 3 are used to perform the buffering unloading effect after the explosion-proof plate 4 is impacted, so as to achieve the internal flame retardant, flame suppression and explosion-proof protection effect of the battery shell.

[0030] 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 high-strength battery casing, comprising a battery casing body (1), characterized in that: The inner wall of the battery housing body (1) is provided with an inner groove (2), the inner wall of the inner groove (2) is fixedly connected with a buffer pad (3), the surface of the buffer pad (3) is fixedly connected with an explosion-proof plate (4), the surface of the explosion-proof plate (4) and the inner wall of the inner groove (2) are in non-slip contact, the battery housing body (1) is provided with a hidden groove near the top of its inner wall, the inner wall of the hidden groove is fixedly mounted with a flame sensor (5), and the inner groove (2) is connected to the top of its inner wall by a bearing rotation belt. A winding rod (6) with a torsion spring, a metal coil (7) fixedly connected to the surface of the winding rod (6), a flame retardant sand cavity (8) opened inside the metal coil (7), a tough combustible sealing tape (9) fixedly connected to the inner wall of the flame retardant sand cavity (8), a combustible thin plate (10) fixedly connected between the top of the explosion-proof plate (4) and the top of the inner wall of the inner groove (2), an abutment plate (11) fixedly connected to one end of the metal coil (7), the surface of the abutment plate (11) abutting against the surface of the combustible thin plate (10).

2. A high-strength battery casing according to claim 1, characterized in that: A spring telescopic rod (12) is fixedly connected to the surface of the explosion-proof plate (4), and one end of the spring telescopic rod (12) is fixedly connected to the surface of the inner wall of the inner groove (2).

3. A high-strength battery casing according to claim 2, characterized in that: The number of the spring telescopic rods (12) is at least four, and the at least four spring telescopic rods (12) are evenly distributed in the circumference of the explosion-proof plate (4).

4. A high-strength battery casing according to claim 1, characterized in that: The main body of the explosion-proof panel (4) is a seismic main board, a locking component is connected to the surface of the seismic main board, and an explosion-proof flame-retardant panel (13) is connected to the surface of the locking component.

5. A high-strength battery casing according to claim 4, characterized in that: The locking assembly comprises a magnetic locking plate (14) and a magnetic locking groove (15); the magnetic locking plate (14) is fixedly connected to the surface of the explosion-proof and flame-retardant plate (13); the magnetic locking groove (15) is arranged on the surface of the anti-vibration main plate close to its circumference; the inner wall of the magnetic locking groove (15) and the surface of the magnetic locking plate (14) are magnetically engaged and adapted.

6. A high-strength battery casing according to claim 4, characterized in that: A carbon dioxide storage chamber (16) with a flammable film sleeve is provided on the surface of the explosion-proof plate (4), and the carbon dioxide storage chamber (16) is completely located inside the explosion-proof and flame-retardant plate (13).

7. The high-strength battery casing according to claim 1, characterized in that: A raised sliding ball (17) is fixedly connected to the surface of the metal coil (7), the outer surface of the raised sliding ball (17) is coated with a wear-resistant coating, and the surface of the raised sliding ball (17) is slidably connected to a side of the metal coil (7) away from the flame-retardant sand cavity (8).

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