Method for continuously removing oxygen from automobile battery

By designing a deoxygenation battery cover on a new energy vehicle battery, using the air injection pipe and exhaust pipe to discharge oxygen inside the battery, and setting an oxygen deoxygenation layer on the inner surface of the battery cover, the problem of the battery being prone to ignite due to the existence of oxygen is solved. The battery module is effectively anaerobic and the risk of fire is reduced.

CN119481560APending Publication Date: 2025-02-18新丽(清远)汽车部件有限公司
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Patent Information

Application Number
CN202411557595.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

New energy vehicle batteries are prone to ignition due to the existence of oxygen, and the prior art is difficult to effectively isolate the oxygen inside the battery.

Method used

An oxygen deoxygenation battery cover is designed, including an injection pipe and an exhaust pipe, and air inside the battery cover is discharged through a gas injection device, and an oxygen deoxygenation layer is provided on the inner surface of the battery cover to continuously remove oxygen inside the battery.

Benefits of technology

Through the dual measures of exhaust and oxygen degassing agent layer, the battery module is ensured to be in an oxygen-free state, significantly reducing the risk of battery ignition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a method for continuously deoxidizing an automobile battery, which comprises the following steps of: arranging a battery cover on the periphery of the battery, arranging a gas injection pipe and a gas exhaust pipe on the battery cover, exhausting air in the battery cover through the gas injection pipe and the gas exhaust pipe by adopting a gas injection device, and arranging a deoxidant layer on the inner surface of the battery cover, according to the deoxygenization battery cover, internal leaked gas or residual gas of an automobile battery used after installation is continuously deoxygenized, the deoxygenization battery cover is achieved, the battery protection function is achieved, the deoxygenization and oxygen isolation functions are achieved at the same time, a battery assembly is effectively arranged in a first cover body and a second cover body through an air injection pipe, an exhaust pipe and a positioning block, and the safety of the battery assembly is effectively improved. According to the automobile battery, gas injection and oxygen discharge operation can be achieved, the internal battery assembly can be in an oxygen-free state, meanwhile, the interiors of the first cover body and the second cover body can be continuously deoxidized through the arranged deoxidant layer, and the possibility that the internal battery assembly is prevented from catching fire after the automobile battery is installed and used is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of oxygen-free batteries, in particular to a method for continuously deoxygenating automobile batteries. Background Art

[0002] At present, the main reasons for fires in new energy vehicle batteries can be attributed to five points: including battery component aging, external collision, high temperature weather, battery thermal runaway, high load, etc. Oxygen is indispensable for combustion, so isolating oxygen in the battery is the key. By removing oxygen, one of the three major elements of combustion, from the inside of electric vehicle batteries, electric vehicle batteries can be effectively prevented from catching fire. Therefore, we propose a method for continuous deoxygenation of automotive batteries to achieve a deoxygenated battery cover to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide a deoxygenating battery cover to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A method for continuously deoxygenating a car battery comprises arranging a battery cover on the periphery of the battery, wherein the battery cover is provided with a gas injection pipe and an exhaust pipe, and a gas injection device is used to discharge the air existing inside the battery cover through the gas injection pipe and the exhaust pipe, and a deoxidizer layer is arranged on the inner surface of the battery cover, so as to continuously deoxygenate the internal leaked gas or residual gas of the car battery after installation and use.

[0006] The battery cover includes a first cover body, the first cover body is arranged above the battery assembly, a second cover body is arranged at the lower end of the first cover body, the second cover body is arranged on the outside of the battery assembly, two groups of positioning blocks are arranged on both side walls of the second cover body, an injection pipe is arranged on one side wall of the first cover body, an exhaust pipe is arranged on one side of the injection pipe, the exhaust pipe is arranged on the side wall of the first cover body, and a deoxidizer layer is provided on the inner surfaces of the first cover body and the second cover body.

[0007] The inner surfaces of the first cover body and the second cover body are provided with a deoxidizer layer, both of which include a base plate, multiple groups of inner walls of the base plate are provided with frame plates, multiple groups of frame plates are provided with multiple groups of grooves, multiple groups of grooves are provided with a group of deoxidizer layers inside, multiple groups of deoxidizer layers are arranged on the side walls of the base plate, and the deoxidizer layer is made of deoxidized thermal insulation material.

[0008] As a further solution of the present invention: a group of first screw holes are arranged on the upper end surfaces of the multiple groups of positioning blocks, two groups of mounting blocks are arranged on the two side walls of the first cover body, a group of second screw holes are arranged on the multiple groups of mounting blocks, and multiple groups of mounting bolts are arranged inside the multiple groups of first screw holes and second screw holes.

[0009] Two groups of support blocks are arranged on the front and rear end walls of the second cover body, a group of limit blocks are arranged on the upper end surfaces of the multiple groups of support blocks, and a group of limit frames are arranged on the upper ends of the multiple groups of limit blocks.

[0010] As a further solution of the present invention: a plurality of groups of the limit frames are respectively arranged on the front and rear end walls of the first cover body.

[0011] As a further solution of the present invention: the diameters of the first screw hole and the second screw hole are the same, and both the first screw hole and the second screw hole are used in conjunction with mounting bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The method realizes a deoxygenating battery cover, which not only protects the battery, but also realizes the functions of deoxygenation and oxygen isolation. By setting a cover-type deoxygenating component, through the gas injection pipe, the exhaust pipe, and the positioning block, the battery component is effectively set inside the first cover and the second cover, and the gas injection and oxygen removal operation can be realized, so that the internal battery component can be in an oxygen-free state. At the same time, the inside of the first cover and the second cover can be continuously deoxygenated through the set deoxygenating agent layer, thereby improving the possibility of avoiding fire of the internal battery component after the automobile battery is installed and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the side of the present invention.

[0016] Figure 3 for Figure 2 A is a schematic diagram of the enlarged structure.

[0017] Figure 4 Schematic diagram of the structure of the deoxidizer layer in the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the battery assembly in the present invention.

[0019] Figure 6 It is a three-dimensional diagram of the gas injection and oxygen exhaust device;

[0020] Figure 7 It is a three-dimensional cross-sectional view of the gas injection and oxygen exhaust device;

[0021] Figure 8 A three-dimensional diagram of the transmission screw of the gas injection and oxygen exhaust device;

[0022] Fig. 9 A three-dimensional cross-sectional view of the gas introduction structure of the gas injection and oxygen exhaust device

[0023] in:

[0024] 1. Battery assembly; 2. First cover body; 3. Second cover body; 4. Positioning block; 5. First screw hole; 6. Mounting block; 7. Second screw hole; 8. Mounting bolt; 9. Gas injection pipe; 10. Exhaust pipe; 11. Support block; 12. Limit block; 13. Limit frame; 14. Base plate; 15. Frame plate; 16. Groove; 17. Deoxidizer layer.

[0025] 21. Shell; 22. Belt transmission device; 23. Shock-absorbing pad; 24. Horizontal moving plate; 25. Reset spring; 26. Bracket; 27. Bottom fixing groove; 28. First slide bar; 29. ​​Lifting frame; 210. Top fixing groove; 211. Pressure display gauge; 212. Adjusting bolt; 213. Transmission screw rod; 214. Second slide bar; 215. Moving block; 216. Rotating rod; 217. Mounting plate; 218. Limiting groove; 219. Gas introduction structure; 21901. Sliding block; 21902. Gas chamber; 21903. Connecting pipe; 21904. Inlet groove; 21905. Laminating plate; 21906. Adjusting spring DETAILED DESCRIPTION

[0026] Example 1

[0027] In one embodiment, if Figure 1-Figure 5 As shown, a method for continuously deoxygenating a car battery is characterized in that the method includes setting a battery cover on the periphery of the battery, the battery cover is provided with a gas injection pipe 9 and an exhaust pipe 10, a gas injection device is used to discharge the air existing inside the battery cover through the gas injection pipe 9 and the exhaust pipe 10, and a deoxidizer layer is set on the inner surface of the battery cover, so as to continuously deoxygenate the internal leakage or residual gas of the car battery after installation and use.

[0028] The battery cover includes a first cover body 2, which is arranged above the battery assembly 1, and a second cover body 3 is arranged at the lower end of the first cover body 2, and the second cover body 3 is arranged on the outside of the battery assembly 1. Two groups of positioning blocks 4 are arranged on both side walls of the second cover body 3, and a group of first screw holes 5 are arranged on the upper end surfaces of multiple groups of positioning blocks 4. Two groups of mounting blocks 6 are arranged on both side walls of the first cover body 2, and a group of second screw holes 7 are arranged on multiple groups of mounting blocks 6. Multiple groups of mounting bolts 8 are arranged inside the multiple groups of first screw holes 5 and second screw holes 7. An air injection pipe 9 is arranged on one side wall of the first cover body 2, and an exhaust pipe 10 is arranged on one side of the air injection pipe 9. The exhaust pipe 10 is arranged on the side wall of the first cover body 2; the diameters of the first screw hole 5 and the second screw hole 7 are the same, and the first screw hole 5 and the second screw hole 7 are used in conjunction with the mounting bolts 8. The inner surfaces of the first cover body 2 and the second cover body 3 are provided with a deoxidizer layer.

[0029] Specifically, the second screw hole 7 is arranged directly above the first screw hole 5, and the mounting bolt 8 is installed inside the first screw hole 5 and the second screw hole 7, so that the battery assembly 1 can be installed inside the first cover body 2 and the second cover body 3; gas other than oxygen is injected into the first cover body 2 and the second cover body 3 through the gas injection pipe 9, and the air existing in the first cover body 2 and the second cover body 3 is discharged, so that the battery assembly 1 can be arranged inside the first cover body 2 and the second cover body 3, and the battery assembly 1 can be placed in an oxygen-free state. At the same time, the deoxidizer layer 17 can further deoxidize the interior of the first cover body 2 and the second cover body 3, thereby increasing the possibility of avoiding fire of the battery assembly 1.

[0030] like Figure 1-Figure 2 As shown, two groups of support blocks 11 are arranged on the front and rear end walls of the second cover body 3, a group of limit blocks 12 are arranged on the upper end surfaces of the multiple groups of support blocks 11, and a group of limit frames 13 are arranged on the upper ends of the multiple groups of limit blocks 12; the multiple groups of limit frames 13 are respectively arranged on the front and rear end walls of the first cover body 2; by setting the limit blocks 12 and the limit frames 13, the first cover body 2 can be limited to the upper end of the second cover body 3, so as to facilitate the fixing of the first cover body 2 and the second cover body 3.

[0031] like Figure 1-Figure 4As shown, the inner surfaces of the first cover body and the second cover body are provided with a deoxidizer layer, both of which include a base plate 14, and multiple groups of inner walls of the base plate 14 are provided with frame plates 15; multiple groups of frame plates 15 are provided with multiple groups of grooves 16, and multiple groups of grooves 16 are provided with a group of deoxidizer layers 17 inside, and multiple groups of deoxidizer layers 17 are arranged on the side walls of the base plate 14; the deoxidizer layer 17 is made of deoxidizer, which is also made of deoxidizer thermal insulation material, which belongs to existing materials and is currently mostly used for deoxidation and preservation of food. When there is still a surplus or leakage in the internal oxygen content of the first cover body 2 and the second cover body 3, multiple groups of deoxidizer layers 17 are used to remove the oxygen in the first cover body 2 and the second cover body 3, which is relatively practical.

[0032] The above embodiment also discloses a deoxygenating battery cover. When in use, the battery assembly 1 is placed inside the first cover body 2 and the second cover body 3. Then, the first cover body 2 can be limited to the upper end of the second cover body 3 by the limiting block 12 and the limiting frame 13, so that the second screw hole 7 is set just above the first screw hole 5. Then, the mounting bolt 8 is installed inside the first screw hole 5 and the second screw hole 7, so that the battery assembly 1 can be installed inside the first cover body 2 and the second cover body 3; the first cover body 2 and the second cover body 3 are filled with gas other than oxygen through the gas injection pipe 9 connected to the external gas pipe, and the air existing inside the first cover body 2 and the second cover body 3 is discharged. When actually exhausting, a nitrogen gas injection device can be used, and the inside of the first cover body 2 and the second cover body 3 becomes a state filled with only nitrogen gas, thereby making it an oxygen-free state; when the internal oxygen content of the first cover body 2 and the second cover body 3 still has a surplus or leaks, multiple groups of deoxygenating agent layers 17 are continuously used to remove the oxygen in the first cover body 2 and the second cover body 3, which is relatively practical. The externally connected gas injection device is not described in detail. The existing gas injection device can be used to inject gas and exhaust oxygen. After the gas is injected and exhausted, the gas injection pipe 9 and the exhaust pipe 10 can be blocked.

[0033] A deoxygenating battery cover designed by the present invention can effectively realize the operation of disposing a battery assembly inside a first cover body and a second cover body to inject and exhaust oxygen through a gas injection pipe, an exhaust pipe and a positioning block, so that the battery assembly can be in an oxygen-free state. At the same time, the deoxygenating agent layer can further continuously deoxygenate the interior of the first cover body and the second cover body, thereby ensuring that the automobile battery remains in an oxygen-free state during installation and use, thereby increasing the possibility of avoiding fire of the internal battery assembly after installation and use.

[0034] The oxygen-free battery with the oxygen-free battery cover is also a deoxygenated battery structure for automobiles.

[0035] Example 2

[0036] A method for continuously deoxygenating a car battery comprises: setting a battery cover of the above structure on the periphery of the battery, using the following gas injection device to discharge the air inside the battery cover through the gas injection pipe 9 and the exhaust pipe 10, and also setting a deoxidizer layer on the inner surface of the battery cover, and continuously deoxygenating the internal leaked gas or residual gas of the car battery after installation and use. The specific gas injection device is as follows:

[0037] like Figures 6 to 9 A gas injection device, comprising a housing 21, an adjusting bolt 212 is arranged on the top of one side of the housing 21, the adjusting bolt 212 is threadedly connected to the housing 21, the number of the adjusting bolts 212 is set to two, a transmission screw 213 is rotatably connected between the two adjusting bolts 212, a second sliding rod 214 is arranged between the two adjusting bolts 212, and the transmission screw 213 is located directly above the second sliding rod 214;

[0038] The gas introduction structure 219 includes a slider 21901, a gas chamber 21902 is provided on one side of the slider 21901, a connecting pipe 21903 is slidably connected inside one side of the gas chamber 21902, an air inlet groove 21904 is opened inside the connecting pipe 21903, a fitting plate 21905 is provided on one side of the connecting pipe 21903, the fitting plate 21905 is arranged inside the gas chamber 21902, and an adjustment spring 21906 is provided between the connecting pipe 21903 and the gas chamber 21902.

[0039] A belt transmission device 22 is arranged inside the shell 21, and a reinforcing rib is arranged on the top of the conveyor belt in the belt transmission device 22. A shock-absorbing pad 23 is arranged on one side of the shell 21, and the shock-absorbing pad 23 is arranged in two groups. A horizontal moving plate 24 is arranged at one end of the shock-absorbing pad 23, and a return spring 25 is arranged between the horizontal moving plate 24 and the shell 21. The battery is placed on the top of the belt transmission device 22, and then the belt transmission device 22 drives the battery to move to one side of the gas introduction structure 219, and is squeezed by the gas introduction structure 219, so that one end of the battery is in contact with one side of the horizontal moving plate 24 and squeezes the return spring 25, so that the battery is stably fixed on the top of the belt transmission device 22.

[0040] A bracket 26 is provided on one side of the shell 21, and a bottom fixing groove 27 is provided inside the bottom of the bracket 26. A first slide bar 28 is provided on the top of the bracket 26. A lifting frame 29 is slidably connected to the outer wall of the first slide bar 28. A top fixing groove 210 is provided in the middle of the lifting frame 29. The top fixing groove 210 is provided just above the bottom fixing groove 27. The top fixing groove 210 and the bottom fixing groove 27 are set to half a sphere. A pressure display gauge 211 is provided on the top of the top fixing groove 210. A storage tank filled with nitrogen is loaded between the bottom fixing groove 27 and the top fixing groove 210. A spring is provided between the bracket 26 and the lifting frame 29. The spring pulls the lifting frame 29 to move downward, and the lifting frame 29 drives the top fixing groove 210 to fit with the top of the storage tank to fix the storage tank.

[0041] The threads at both ends of the transmission screw 213 are rotated in opposite directions, and a moving block 215 is provided on the outer wall of the transmission screw 213. The through hole in the middle of the moving block 215 cooperates with the transmission screw 213, and the through hole at the bottom of the moving block 215 is slidably connected to the second sliding rod 214. A rotating rod 216 is rotatably connected to one side of the moving block 215. The number of the rotating rods 216 is set to two, and a mounting plate 217 is rotatably connected between the two rotating rods 216. A limiting groove 218 is provided inside the mounting plate 217, and a slider 21901 is slidably connected inside the limiting groove 218. The motor drives the transmission screw 213 to rotate, and the transmission screw 213 drives the moving block 215 to move inward at the same time. Then the moving block 215 drives the mounting plate 217 to move horizontally outward through the rotating rod 216, and the mounting plate 217 drives the connecting pipe 21903 in the gas introduction structure 219 to align with the air inlet and outlet of the battery.

[0042] Working principle of gas injection device:

[0043] Refer to the instruction manual Figure 6-Figure 9 First, when the oxygen inside the battery needs to be discharged through the gas injection device, the storage bottle filled with nitrogen is installed between the bottom fixing groove 27 and the top fixing groove 210, and then the spring pulls the top fixing groove 210 to move downward to fix the storage bottle, and then the pressure display gauge 211 is connected to the slider 21901 through the pipeline;

[0044] The battery with the battery cover installed on the new energy vehicle is placed on the top of the belt transmission device 22. The belt transmission device 22 drives the battery to move between the gas introduction structure 219 and the horizontal moving plate 24. The motor drives the transmission screw 213 to rotate, and the transmission screw 213 drives the moving block 215 to move inward. Then the moving block 215 pushes the mounting plate 217 to move horizontally to one side through the rotating rod 216, so that the mounting plate 217 drives the slider 21901 to move inward and close to the battery, so that one side outer wall of the battery is in contact with the horizontal moving plate 24. The outer wall is fitted, and the connecting tube 21903 in the slider 21901 is aligned with the air inlet and outlet of the battery, and the connecting tube 21903 is squeezed by the air inlet and outlet of the battery, so that a gap appears between the fitting plate 21905 on one side of the connecting tube 21903 and the gas chamber 21902. At the same time, the air inlet groove 21904 enters the interior of the gas chamber 21902, allowing nitrogen to enter the interior of the battery and discharge the oxygen inside the battery through another gas introduction structure 219, so as to achieve the purpose of gas injection and oxygen discharge for the internal battery and battery cover.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for continuously deoxygenating a car battery, characterized in that: The method comprises arranging a battery cover on the periphery of the battery, wherein the battery cover is provided with a gas injection pipe (9) and an exhaust pipe (10), using a gas injection device to discharge the air existing inside the battery cover through the gas injection pipe (9) and the exhaust pipe (10), and simultaneously arranging a deoxidizer layer on the inner surface of the battery cover to continuously deoxidize the internal leaked gas or residual gas of the automobile battery after installation and use.

2. A method for continuous deoxygenation of a car battery according to claim 1, characterized in that: The battery cover comprises a first cover body (2), the first cover body (2) being arranged above the battery assembly (1), a second cover body (3) being arranged at the lower end of the first cover body (2), the second cover body (3) being arranged on the outer side of the battery assembly (1), two sets of positioning blocks (4) being arranged on both side walls of the second cover body (3), a gas injection pipe (9) being arranged on one side of the gas injection pipe (9), the exhaust pipe (10) being arranged on the side wall of the first cover body (2), and a deoxidizer layer being arranged on the inner surfaces of the first cover body (2) and the second cover body (3).

3. A method for continuous deoxygenation of a car battery according to claim 1, characterized in that: The deoxidizer layers on the inner surfaces of the first cover body (2) and the second cover body (3) both include a base plate (14), multiple groups of inner walls of the base plate (14) are each provided with a frame plate (15), multiple groups of the frame plates (15) are each provided with a plurality of grooves (16), a group of deoxidizer layers (17) are each provided inside the multiple groups of the grooves (16), and the multiple groups of the deoxidizer layers (17) are each bonded to the side wall of the base plate (14).

4. A method for continuous deoxygenation of a car battery according to claim 2, characterized in that: The deoxidizer layer (17) is made of deoxidized thermal insulation material.

5. A method for continuously deoxygenating a car battery according to claim 1, characterized in that: A group of first screw holes (5) are arranged on the upper end surface of the positioning block (4), two groups of mounting blocks (6) are arranged on the two side walls of the first cover body (2), a group of second screw holes (7) are arranged on the multiple groups of mounting blocks (6), and multiple groups of mounting bolts (8) are arranged inside the multiple groups of the first screw holes (5) and the second screw holes (7).

6. A method for continuous deoxygenation of a car battery according to claim 3, characterized in that: Two groups of support blocks (11) are arranged on the front and rear end walls of the second cover body (3), a group of limit blocks (12) are arranged on the upper end surfaces of the multiple groups of support blocks (11), and a group of limit frames (13) are arranged on the upper ends of the multiple groups of limit blocks (12).

7. A method for continuous deoxygenation of a car battery according to claim 4, characterized in that: A plurality of groups of limit frames (13) are respectively arranged on the front and rear end walls of the first cover body (2).

8. A method for continuous deoxygenation of a car battery according to claim 1, characterized in that: The diameters of the first screw hole (5) and the second screw hole (7) are the same, and both the first screw hole (5) and the second screw hole (7) are used in conjunction with the mounting bolt (8).