A self-short circuit protection battery

Abstract

The present invention provides a self-short-circuit-proof battery, which relates to the technical field of battery protection, including a positive pole and a negative pole provided at the upper end of a battery body, at least two protective members provided at the upper end of the battery body for shielding the positive pole and the negative pole, and a sealing member provided at the upper end of the battery body; the protective member includes a protective cover and a sealing ring, the upper ends of the positive pole and the negative pole are both sleeved with protective covers, and the lower end of the protective cover is provided with a sealing ring; the sealing member includes a connecting frame, a latex block and a latex strip, a latex block is provided on one side of the connecting frame, and a latex strip is provided on the other side of the connecting frame for pressing against one side of the protective cover. The present invention provides a protective cover in the protective member on the upper ends of the positive pole and the negative pole, which can protect and shield the positive pole and the negative pole, thereby preventing external metal objects from directly contacting the positive pole and the negative pole, avoiding short circuit of the battery body, and improving safety.

Description

Technical Field

[0001] The invention relates to the technical field of battery protection, and in particular to a self-short-circuit-proof battery. Background Art

[0002] A battery is a device that can convert chemical energy into electrical energy and is a secondary battery. It realizes the charging and discharging process through reversible chemical reactions. During discharge, the chemical substances inside the battery react, causing electrons to flow from the negative electrode to the positive electrode, generating current through the external circuit, thereby powering the electrical equipment; during charging, under the action of the external power supply, the chemical reaction inside the battery is reversed, and the electrical energy is stored in the form of chemical energy; it mainly contains plates, electrolytes and separators. Plates: are the core components of batteries, divided into positive plates and negative plates. Positive plates are generally lead dioxide, and negative plates are spongy lead. The active substances of the plates participate in chemical reactions, and factors such as their mass and surface area will affect the performance of the battery, such as capacity and discharge rate; electrolyte: usually an aqueous solution of sulfuric acid. The electrolyte plays the role of ion conduction during the operation of the battery, which enables the chemical reaction on the plates to proceed smoothly. Its concentration will change with the charging and discharging process of the battery. For example, during the discharge process, the sulfuric acid in the electrolyte will gradually be consumed and the concentration will decrease. Separator: It is placed between the positive and negative plates. Its main function is to prevent the positive and negative plates from directly contacting each other and causing a short circuit. At the same time, it allows the ions in the electrolyte to pass freely between the positive and negative plates to ensure the normal chemical reaction inside the battery. Common separator materials include microporous rubber, glass fiber, etc.

[0003] For example, the prior art application number CN01222325.5 discloses a lead-acid battery, including a shell and a cover. The shell has a positive plate, a negative plate, and a separator. The cover has six acid adding holes and two terminals. A handle is provided in the middle of the cover. The handle is movably connected to the cover. There is a pit on the cover. The shape of the pit enables the handle to be placed flat on the cover.

[0004] It is known through actual use of the above-mentioned prior art that when the positive and negative poles of the battery are accidentally connected by a metal conductor (such as iron wire, copper sheet, etc.), a short circuit will easily occur. For example, if a tool is left behind during the battery installation process, or the metal parts around the battery are not placed properly, a wrench or other tool may accidentally touch the positive and negative poles at the same time, causing a short circuit and reducing the safety performance of the battery. For this reason, we have improved the above-mentioned solution based on actual usage. Summary of the invention

[0005] In view of the above-mentioned problem that when the positive and negative poles of the battery are accidentally connected by a metal conductor (such as iron wire, copper sheet, etc.), a short circuit may easily occur. For example, if a tool is left behind during the battery installation process, or the metal parts around the battery are not placed properly, a wrench or other tool may accidentally touch the positive and negative poles at the same time, causing a short circuit and reducing the safety performance of the battery, the present invention aims to provide a self-short-circuit-proof battery.

[0006] To achieve the technical purpose, the solution of the present invention is: a self-short-circuit-proof battery, comprising a positive electrode column and a negative electrode column arranged at the upper end of a battery body, at least two protective members are arranged at the upper end of the battery body for shielding the positive electrode column and the negative electrode column, and a sealing member is also arranged at the upper end of the battery body; the protective member comprises a protective cover and a sealing ring, the upper ends of the positive electrode column and the negative electrode column are both sleeved with protective covers, and a sealing ring is arranged at the lower end of the protective cover; the sealing member comprises a connecting frame, a latex block and a latex strip, a latex block is arranged on one side of the connecting frame, and a latex strip is arranged on the other side of the connecting frame for pressing tightly against one side of the protective cover.

[0007] Preferably, a column is integrally provided on the upper surface of the battery body, and a pull ring is sleeved on the periphery of each column.

[0008] Preferably, a circular block is integrally provided at the upper end of the column, a pull wire is integrally provided at one side of the pull ring, and one end of the pull wire is integrally provided with the outer surface of the protective cover.

[0009] Preferably, an opening is provided on one side of the protective cover, a groove is provided in the protective cover, and the opening and the groove are communicated with each other.

[0010] Preferably, an annular groove is provided on the lower surface of the protective cover and a sealing ring is fixed in the annular groove by glue, and the lower surface of the sealing ring is tightly pressed against the upper surface of the battery body.

[0011] Preferably, bolt holes are provided on the upper surface of the battery body, and ear blocks are integrally provided on both sides of the connection frame, and bolts pass through the ear blocks for threaded connection with the bolt holes to install the connection frame.

[0012] Preferably, the connection frame is integrally arranged with the latex block and the latex strip, a through hole is arranged in the latex block, and the inner wall of the through hole is tightly pressed against the outer surface of the battery pile head.

[0013] Preferably, a curved surface is provided on one side of the latex strip, and the curved surface fits with the protective cover.

[0014] Preferably, the outer surfaces of the positive electrode column and the negative electrode column are integrally provided with convex strips;

[0015] Beneficial effects:

[0016] 1. In the present invention, the protective cover in the protective member is arranged at the upper end of the positive pole and the negative pole, which can protect and shield the positive pole and the negative pole, thereby preventing external metal objects from directly contacting the positive pole and the negative pole, avoiding short circuit of the battery body, and improving safety;

[0017] 2. After the protective cover is set on the upper ends of the positive pole and the negative pole, the battery head is in the opening of the latex block, and the latex strip on one side of the connecting frame is tightly matched with the outer surface of the protective cover, which can achieve complete sealing of the positive pole, the negative pole and the battery head connection, prevent the mixture of dust and water from entering, avoid corrosion of the positive pole, the negative pole and the battery head connection, and improve the service life of the battery body;

[0018] 3. When the battery post is in the opening of the latex block, the connection frame applies pressure to the periphery of the battery post through the latex block, and at the same time the convex strip limits the battery post, which can ensure that the battery post is stable and does not shake, avoid sparks at the connection between the positive pole, the negative pole and the battery post, and ensure the voltage of the battery body is stable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the battery body of the present invention;

[0021] Figure 3 It is a front view schematic diagram of the present invention;

[0022] Figure 4 It is a schematic diagram of a protective element of the present invention;

[0023] Figure 5 The seal of the present invention is intended;

[0024] Figure 6 This is a schematic diagram of the connection between the present invention and the battery pile head;

[0025] Figure 7 For the present invention Figure 6 The enlarged schematic diagram at a in the middle;

[0026] Figure 8 It is a left side schematic diagram of the present invention.

[0027] Among them, 1. battery body; 2. protective part; 21. protective cover; 22. sealing ring; 23. groove; 24. opening; 25. pull ring; 26. pull wire; 27. annular groove; 3. sealing part; 31. connecting frame; 32. latex block; 33. through hole; 34. latex strip; 35. ear block; 36. bolt; 37. arc surface; 4. positive pole; 5. convex strip; 6. negative pole; 7. column; 8. round block; 9. battery post; 10. bolt hole. DETAILED DESCRIPTION

[0028] The invention of this application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; based on the contents recorded in this application, other embodiments obtained without creative work are all within the scope of protection of the present invention.

[0029] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of clearly describing the present embodiment, rather than indicating or implying that the device or element referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] like Figures 1 to 8 As shown, an embodiment of the present invention provides a self-short-circuit-proof battery, including a positive electrode column 4 and a negative electrode column 6 are arranged at the upper end of a battery body 1, at least two protective members 2 are arranged at the upper end of the battery body 1 for shielding the positive electrode column 4 and the negative electrode column 6, and a sealing member 3 is also arranged at the upper end of the battery body 1; the protective member 2 includes a protective cover 21 and a sealing ring 22, the upper ends of the positive electrode column 4 and the negative electrode column 6 are both sleeved with protective covers 21, and the lower end of the protective cover 21 is provided with a sealing ring 22; the sealing member 3 includes a connecting frame 31, a latex block 32 and a latex strip 34, the latex block 32 is arranged on one side of the connecting frame 31, and the latex strip 34 is arranged on the other side of the connecting frame 31 for pressing against one side of the protective cover 21;

[0031] The material of the protective cover 21 and the connecting frame 31 can be rubber or plastic. Rubber is a common material for the battery pole protective cover 21. It has good elasticity and sealing. For example, natural rubber and synthetic rubber (such as nitrile rubber) can be made into the shape of the protective cover 21, tightly wrapped around the positive pole 4 and the negative pole 6. Natural rubber has good flexibility and wear resistance, and can withstand a certain degree of mechanical external force to prevent the protective cover 21 from breaking due to aging in daily use or vibration during vehicle driving. Nitrile rubber has the characteristics of oil resistance and chemical corrosion resistance. In some environments that may be exposed to oil or chemicals, such as in the engine compartment of a car, the protective cover 21 made of nitrile rubber can effectively prevent these substances from corroding the pole. The protective cover 21 made of rubber can also prevent the entry of water and dust to a certain extent, because the sealing of rubber can block external liquids and solid particles;

[0032] Many protective covers 21 are made of plastics, such as polypropylene (PP) and polyvinyl chloride (PVC). Polypropylene is a plastic with high strength and toughness. It can be made into complex shapes through processes such as injection molding to adapt to the structure and installation requirements of the pole. The protective cover 21 made of polypropylene has a good barrier effect on water and dust, and has good insulation properties, which can effectively prevent short circuits between poles. Polyvinyl chloride is also a commonly used plastic material, which is characterized by a relatively low price and good processing performance. The protective cover 21 made of PVC can be added with various additives as needed to improve its performance. For example, adding plasticizers can make the protective cover 21 softer, and adding brominated flame retardants can improve its fire resistance;

[0033] Brominated flame retardants are a commonly used flame retardant. For example, decabromodiphenyl ether and tetrabromobisphenol A. In the production process of protective cover 21, after adding brominated flame retardants, when encountering flames, the flame retardants will decompose to produce free radical scavengers such as hydrogen bromide (HBr). These substances can capture highly active free radicals in the combustion reaction, such as hydrogen radicals and hydroxyl radicals, thereby interrupting the chain reaction of combustion and slowing down or preventing the spread of flames;

[0034] refer to Figure 1 and Figure 6 The upper surface of the battery body 1 is integrally provided with a column 7, and the periphery of each column 7 is sleeved with a rubber pull ring 25. A circular block 8 is integrally provided on the upper end of the column 7, and a rubber pull wire 26 is integrally provided on one side of the pull ring 25, and one end of the pull wire 26 is integrally provided with the outer surface of the protective cover 21.

[0035] refer to Figure 4 and Figure 6 An opening 24 is provided on one side of the protective cover 21, and a groove 23 is provided in the protective cover 21, and the opening 24 is connected to the groove 23. An annular groove 27 is provided on the lower surface of the protective cover 21, and a sealing ring 22 is fixed in the annular groove 27 by glue to increase the fit with the battery body 1 and improve the sealing performance, and the lower surface of the sealing ring 22 is tightly pressed against the upper surface of the battery body 1.

[0036] refer to Figure 6 and Figure 7 The upper surface of the battery body 1 is provided with bolt holes 10, and ear blocks 35 are integrally provided on both sides of the connection frame 31, and bolts 36 pass through the ear blocks 35 for threading with the bolt holes 10 to install the connection frame 31. The connection frame 31 is integrally provided with a latex block 32 and a latex strip 34, and a through hole 33 is provided in the latex block 32, and the inner wall of the through hole 33 is tightly pressed against the outer surface of the battery post 9. An arc surface 37 is provided on one side of the latex strip 34, and the arc surface 37 is in contact with the protective cover 21 to increase the fit with the protective cover 21; the outer surfaces of the positive pole 4 and the negative pole 6 are integrally provided with convex strips 5 to prevent the battery post 9 from rotating and generating sparks;

[0037] The latex block 32 and the latex strip 34 are natural latex with flame retardants added. Material characteristics: Natural latex is taken from the sap of rubber trees and has good elasticity and flexibility. After special treatment and the addition of flame retardants, it can have certain fire resistance. Burning resistance principle: Added flame retardants such as inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide will absorb a lot of heat when thermally decomposed, thereby reducing the surrounding temperature. At the same time, the released water vapor can dilute the oxygen concentration to achieve a flame retardant effect. In addition, some phosphorus-based flame retardants, nitrogen-based flame retardants, etc., will produce non-combustible gases when burned, isolating oxygen and preventing the combustion reaction from continuing;

[0038] It can also be a composite of synthetic latex and refractory materials. Material characteristics: synthetic latex is generally made by emulsion polymerization, such as polybutadiene latex, styrene butadiene latex, etc., which has good elasticity and wear resistance. When compounded with some refractory materials, it can have both shrinkage resilience and refractory properties. Principle of refractory: Refractory materials represented by silicon carbide and alumina have the characteristics of high melting point and high thermal stability. They can maintain structural stability at high temperatures and prevent the spread of flames, so that the composite latex material has refractory properties;

[0039] It can also be a fireproof latex with a special formula. Material characteristics: Through a specific formula design, a variety of substances with different properties are mixed to form a fireproof latex. For example, it contains 25-55 parts of silicon carbide, 10-17 parts of aluminum oxide, 5-9 parts of butyl acrylate, 5-14 parts of potassium persulfate, 10-15 parts of deionized water, 10-15 parts of emulsifier, 5-10 parts of disodium hydrogen phosphate and other ingredients. This latex not only has good elasticity, but also has high fire resistance. Burning resistance principle: Silicon carbide and aluminum oxide and other ingredients have high temperature resistance and oxidation resistance. During the combustion process, they can form a dense protective layer to prevent the transfer of heat and oxygen, thereby improving the burning resistance of the latex.

[0040] Working principle: During use, firstly, the two battery posts 9 are connected to the positive pole 4 and the negative pole 6 respectively, and then the protective cover 21 in the protective member 2 can be set on the upper ends of the positive pole 4 and the negative pole 6 to protect and shield the positive pole 4 and the negative pole 6, thereby preventing external metal objects (such as a wrench) from directly contacting the positive pole 4 and the negative pole 6, thus avoiding a short circuit of the battery body 1 and improving safety;

[0041] After the protective cover 21 is covered on the upper ends of the positive pole 4 and the negative pole 6, the battery head 9 is in the opening 24 in the latex block 32, and the latex strip 34 on one side of the connecting frame 31 is tightly matched with the outer surface of the protective cover 21, so that the connection between the positive pole 4 and the negative pole 6 and the battery head 9 can be completely sealed, and the mixture of dust and water can be prevented from entering, so as to avoid the connection between the positive pole 4 and the negative pole 6 and the battery head 9 from being corroded, thereby improving the service life of the battery body 1;

[0042] When the battery post 9 is in the opening 24 in the latex block 32, the connecting frame 31 applies pressure to the periphery of the battery post 9 through the latex block 32, and at the same time the convex strip 5 limits the battery post 9, which can ensure that the battery post 9 is stable and does not shake, avoid sparks at the connection between the positive pole 4 and the negative pole 6 and the battery post 9, and ensure the voltage stability of the battery body 1 during use.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any slight modification, equivalent substitution and improvement made to the above embodiment based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A self-short-circuit-proof storage battery, comprising a storage battery body (1) having a positive electrode column (4) and a negative electrode column (6) disposed at the upper end thereof, characterized in that: The upper end of the battery body (1) is provided with at least two protective members (2) for shielding the positive pole (4) and the negative pole (6), and the upper end of the battery body (1) is also provided with a sealing member (3); The protective member (2) comprises a protective cover (21) and a sealing ring (22); the upper ends of the positive pole (4) and the negative pole (6) are both sleeved with the protective cover (21); and the lower end of the protective cover (21) is provided with the sealing ring (22); The sealing member (3) comprises a connecting frame (31), a latex block (32) and a latex strip (34); the latex block (32) is arranged on one side of the connecting frame (31), and the latex strip (34) is arranged on the other side of the connecting frame (31) for tightly contacting one side of the protective cover (21).

2. The self-short circuit preventing battery according to claim 1, characterized in that: The upper surface of the battery body (1) is integrally provided with a column (7), and a pull ring (25) is sleeved on the periphery of each column (7).

3. The self-short circuit preventing battery according to claim 2, characterized in that: A circular block (8) is integrally provided at the upper end of the upright column (7), a pull wire (26) is integrally provided at one side of the pull ring (25), and one end of the pull wire (26) is integrally provided with the outer surface of the protective cover (21).

4. The self-short circuit preventing battery according to claim 1, characterized in that: An opening (24) is provided on one side of the protective cover (21), a groove (23) is provided in the protective cover (21), and the opening (24) and the groove (23) are communicated with each other.

5. The self-short circuit preventing battery according to claim 4, characterized in that: The lower surface of the protective cover (21) is provided with an annular groove (27), and a sealing ring (22) is fixed in the annular groove (27) by means of glue, and the lower surface of the sealing ring (22) is tightly pressed against the upper surface of the battery body (1).

6. The self-short circuit preventing battery according to claim 1, characterized in that: The upper surface of the battery body (1) is provided with a bolt hole (10), and the two sides of the connection frame (31) are integrally provided with ear blocks (35), and bolts (36) pass through the ear blocks (35) for threaded connection with the bolt holes (10) to install the connection frame (31).

7. The self-short circuit preventing battery according to claim 1, characterized in that: The connection frame (31) is integrally provided with the latex block (32) and the latex strip (34); a through hole (33) is provided in the latex block (32), and the inner wall of the through hole (33) is tightly pressed against the outer surface of the battery pile head (9).

8. The self-short circuit preventing battery according to claim 1, characterized in that: A curved surface (37) is provided on one side of the latex strip (34), and the curved surface (37) is in contact with the protective cover (21).

9. The self-short circuit preventing battery according to claim 1, characterized in that: The outer surfaces of the positive electrode column (4) and the negative electrode column (6) are both integrally provided with convex strips (5).

Images