Steel shell cover plate

Abstract

The utility model belongs to the technical field of battery cover plates, particularly relates to a steel shell cover plate, and aims to solve the problems that positive and negative poles on the conventional steel shell battery cover plate are consistent in shape, inconvenient to distinguish and easy to connect mistakenly to cause accidents, and the fireproof performance of the steel shell battery cover plate still needs to be further improved. Inserting rings are fixedly arranged at the bottoms of the two preformed holes in the stainless steel substrate, sealing rings are arranged below the inserting rings, a positive pole column and a negative pole column are arranged below the two sealing rings respectively, and the end part of the positive pole column penetrates through the corresponding sealing ring and the inserting ring and is fixedly provided with a positive pole gasket. During use, the positive electrode gasket and the negative electrode gasket are arranged in different shapes, so that the positive electrode column and the negative electrode column can be quickly distinguished, accidents caused by wrong connection of the positive electrode and the negative electrode are avoided, and the fireproof plate made of fireproof polypropylene plastic has the advantages of high flame retardance, low smoke, no toxicity, chemical resistance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of battery covers, in particular to a steel shell cover. Background Art

[0002] The steel shell battery is a common type of battery, which has a shell made of stainless steel and is usually used in industrial, automotive and other applications. The steel shell battery cover is a component used to close the top of the steel shell battery. The steel shell battery cover is usually made of corrosion-resistant steel material to ensure protection against the external environment and the safety inside the battery. To ensure the safe use of the battery, the steel shell battery cover is usually equipped with a corresponding explosion-proof valve. The main function of the battery explosion-proof valve is to automatically open or release when the pressure inside the battery is too high, so as to relieve the pressure inside the battery and protect the battery from damage and explosion.

[0003] At present, the positive and negative electrode posts on the steel shell battery cover have the same shape, which is not convenient for distinction and is prone to misconnection of the positive and negative electrodes, resulting in accidents. Moreover, the fireproof performance of the steel shell battery cover still needs to be further improved to ensure the safe use of the steel shell battery.

[0004] In view of the above problems, the present utility model document proposes a steel shell cover. Summary of the Utility Model

[0005] The utility model provides a steel shell cover, which solves the disadvantages in the prior art that the positive and negative electrode posts on the current steel shell battery cover have the same shape, are not convenient for distinction, are prone to misconnection of the positive and negative electrodes, resulting in accidents, and the fireproof performance of the steel shell battery cover still needs to be further improved.

[0006] The utility model provides the following technical solutions:

[0007] A steel shell cover, comprising:

[0008] A stainless steel substrate, at the bottom of two reserved holes on the stainless steel substrate, there are fixedly arranged insertion rings respectively. Below the insertion rings, there are sealing rings. Below the two sealing rings, there are a positive electrode post and a negative electrode post respectively. The end of the positive electrode post penetrates through the corresponding sealing ring and insertion ring and is fixedly provided with a positive electrode gasket. The end of the negative electrode post penetrates through the corresponding sealing ring and insertion ring and is fixedly provided with a negative electrode gasket. In the center of the stainless steel substrate, there is a welding port, and an explosion-proof valve is fixedly arranged in the welding port;

[0009] A fireproof component, arranged on the stainless steel substrate, used to improve the fireproof performance of the stainless steel substrate. The fireproof component includes a fireproof board fixedly arranged at the bottom of the stainless steel substrate, and the insertion ring penetrates through the fireproof board.

[0010] In a possible design, the top of the sealing ring is provided with an annular slot for plugging and fixing with the insertion ring.

[0011] In a possible design, the positive electrode gasket is hexagonal, and the negative electrode gasket is rectangular.

[0012] In a possible design, the positive electrode gasket is made of conductive polyphenylene sulfide resin, and the negative electrode gasket is made of insulating polyphenylene sulfide resin.

[0013] In a possible design, the fireproof board is made of fireproof polypropylene plastic.

[0014] In a possible design, a plurality of air vent holes are arranged in a rectangular array on the fireproof board, and the positions of the plurality of air vent holes are aligned with the positions of the welding interfaces.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present utility model.

[0016] The present utility model has the following beneficial effects:

[0017] By setting the positive electrode gasket and the negative electrode gasket into different shapes, the positive electrode post and the negative electrode post can be quickly distinguished, thereby avoiding accidents caused by wrong connection of the positive and negative electrodes.

[0018] By setting the sealing ring, the present utility model is beneficial to improving the sealing performance of the steel shell cover plate, thereby reducing the leakage of the liquid inside the battery.

[0019] By setting the fireproof board made of fireproof polypropylene plastic, the fireproof board has the advantages of high flame retardancy, low smoke and non-toxicity, and anti-chemical properties. Flame retardants or other fireproof additives are added to the fireproof polypropylene plastic material, effectively improving the fire resistance of the stainless steel substrate and reducing the speed of flame spread. Moreover, the fireproof polypropylene plastic material generates less smoke when burning and emits less toxic gases, having less impact on the human body and the environment. At the same time, the fireproof polypropylene plastic material has good chemical resistance and can resist the erosion of various acids, alkalis and solvents.

[0020] By setting the positive electrode gasket made of conductive polyphenylene sulfide resin and the negative electrode gasket made of insulating polyphenylene sulfide resin, it is beneficial to ensure the normal use of the positive electrode post and the negative electrode post. The conductive polyphenylene sulfide resin material adds conductive fillers such as carbon fiber and carbon black to polyphenylene sulfide resin to improve the conductivity of the material, making the positive electrode gasket have good conductivity. The insulating polyphenylene sulfide resin material is modified from polyphenylene sulfide resin to have good insulating performance, so that the negative electrode gasket provides an insulating isolation effect, preventing current loss and electrical short circuit. Description of the Drawings

[0021] Figure 1Schematic diagram of the three-dimensional structure of the present utility model;

[0022] Figure 2 Schematic diagram of the structure of another perspective of the present utility model;

[0023] Figure 3 Schematic diagram of the disassembled structure of the present utility model;

[0024] Figure 4 Schematic diagram of the sealing ring structure of the present utility model.

[0025] Reference numerals: 1, stainless steel substrate; 2, insertion ring; 3, sealing ring; 4, positive electrode post; 5, negative electrode post; 6, positive electrode gasket; 7, negative electrode gasket; 8, welding interface; 9, explosion-proof valve; 10, fireproof board; 11, vent hole; 12, annular slot. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the terms "open hole", "upper", "middle", "length", "inner", etc. indicating orientations or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0028] In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed descriptions of known functions and known components are omitted in the present utility model. Embodiment

[0029] Please refer to Figures 1-4 , a steel shell cover plate, which is used in the field of battery cover plates and includes:

[0030] The stainless - steel substrate 1 is welded to the top of the steel - shell battery to provide good sealing performance. At the bottom of each of the two reserved holes on the stainless - steel substrate 1, a plug - in ring 2 is fixedly arranged. Below the plug - in ring 2, a sealing ring 3 is provided. By setting the sealing ring 3, it is beneficial to improve the sealing performance of the steel - shell cover plate, thereby reducing the leakage of the liquid inside the battery. At the top of the sealing ring 3, an annular slot 12 for plugging and fixing with the plug - in ring 2 is provided. The sealing ring 3 is fixed by plugging, which is not easy to loosen and helps to improve the sealing effect of the sealing ring 3. Below the two sealing rings 3, a positive electrode post 4 and a negative electrode post 5 are respectively provided. The end of the positive electrode post 4 penetrates through the corresponding sealing ring 3 and plug - in ring 2 and is fixedly provided with a positive electrode gasket 6. The end of the negative electrode post 5 penetrates through the corresponding sealing ring 3 and plug - in ring 2 and is fixedly provided with a negative electrode gasket 7. The positive electrode gasket 6 is hexagonal in shape, and the negative electrode gasket 7 is rectangular in shape. By setting the positive electrode gasket 6 and the negative electrode gasket 7 into different shapes, it is convenient to quickly distinguish the positive electrode post 4 and the negative electrode post 5, thus avoiding accidents caused by incorrect connection of the positive and negative electrodes. In the center of the stainless - steel substrate 1, a welding port 8 is provided. An explosion - proof valve 9 is fixedly arranged in the welding port 8, which is used for automatic exhaust and pressure relief to ensure the safe use of the steel - shell battery;

[0031] The positive electrode gasket 6 is preferably made of conductive polyphenylene sulfide resin material. The conductive polyphenylene sulfide resin material is obtained by adding conductive fillers such as carbon fiber and carbon black to the polyphenylene sulfide resin to improve the conductive performance of the material, so that the positive electrode gasket 6 has good conductivity. The negative electrode gasket 7 is preferably made of insulating polyphenylene sulfide resin material. The insulating polyphenylene sulfide resin material is a modification of the polyphenylene sulfide resin to make it have good insulating performance, so that the negative electrode gasket 7 provides an insulating isolation effect, preventing current loss and electrical short - circuit. By setting the positive electrode gasket 6 made of conductive polyphenylene sulfide resin material and the negative electrode gasket 7 made of insulating polyphenylene sulfide resin material, it is beneficial to ensure the normal use of the positive electrode post 4 and the negative electrode post 5;

[0032] A fire - prevention component is arranged on the stainless - steel substrate 1 to improve the fire - prevention performance of the stainless - steel substrate 1. The fire - prevention component includes a fire - prevention board 10 fixedly arranged at the bottom of the stainless - steel substrate 1. The plug - in ring 2 penetrates through the fire - prevention board 10. The fire - prevention board 10 is preferably made of fire - proof polypropylene plastic material. The fire - proof polypropylene plastic material is a material obtained by performing fire - prevention modification on the polypropylene plastic to enhance its fire - resistance performance. Flame retardants or other fire - prevention additives are added to the fire - proof polypropylene plastic material, which effectively improves the fire - resistance performance of the stainless - steel substrate 1 and reduces the speed of flame spread. Moreover, the fire - proof polypropylene plastic material generates less smoke and emits less toxic gas during combustion, having less impact on the human body and the environment. At the same time, the fire - proof polypropylene plastic material has good chemical - resistance performance and can resist the erosion of various acids, alkalis and solvents. By setting the fire - prevention board 10 made of fire - proof polypropylene plastic material, the fire - prevention board 10 has the advantages of high flame retardancy, low smoke and non - toxicity, and good chemical - resistance performance. Embodiment

[0033] Improved based on Embodiment 1:

[0034] Please refer to Figures 2-3 , a plurality of air vent holes 11 are arranged in a rectangular array on the fireproof board 10, and the positions of the plurality of air vent holes 11 are aligned with the positions of the welding joints 8. By providing the air vent holes 11, the gas inside the battery can smoothly contact the explosion-proof valve 9, thereby ensuring the normal use of the explosion-proof valve 9.

[0035] However, as is well known to those skilled in the art, the working principle of the explosion-proof valve 9 is common knowledge, and they all belong to conventional means or well-known common sense, so it will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0036] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention; without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A steel shell cover plate, characterized in that, Including: A stainless steel substrate (1), at the bottom of two reserved holes on the stainless steel substrate (1), a socket ring (2) is fixedly arranged, a sealing ring (3) is arranged below the socket ring (2), a positive electrode post (4) and a negative electrode post (5) are respectively arranged below the two sealing rings (3), the end of the positive electrode post (4) penetrates through the corresponding sealing ring (3) and socket ring (2) and is fixedly provided with a positive electrode gasket (6), the end of the negative electrode post (5) penetrates through the corresponding sealing ring (3) and socket ring (2) and is fixedly provided with a negative electrode gasket (7), a welding interface (8) is arranged in the center of the stainless steel substrate (1), and an explosion-proof valve (9) is fixedly arranged in the welding interface (8); A fireproof component, arranged on the stainless steel substrate (1) for improving the fireproof performance of the stainless steel substrate (1), the fireproof component includes a fireproof board (10) fixedly arranged at the bottom of the stainless steel substrate (1), and the socket ring (2) penetrates through the fireproof board (10).

2. The steel shell cover plate according to claim 1, characterized in that At the top of the sealing ring (3), an annular slot (12) for plugging and fixing with the socket ring (2) is arranged.

3. A steel shell cover plate according to claim 1, characterized in that, The positive electrode gasket (6) is hexagonal, and the negative electrode gasket (7) is rectangular.

4. A steel shell cover plate according to claim 1, characterized in that, The positive electrode gasket (6) is made of conductive polyphenylene sulfide resin material, and the negative electrode gasket (7) is made of insulating polyphenylene sulfide resin material.

5. A steel shell cover plate according to claim 1, characterized in that, The fireproof board (10) is made of fireproof polypropylene plastic material.

6. A steel shell cover plate according to claim 1, characterized in that, On the fireproof board (10), a plurality of air vent holes (11) are arranged in a rectangular array, and the positions of the plurality of air vent holes (11) are aligned with the position of the welding interface (8).

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