Battery cover plate sealing gasket

Abstract

The utility model relates to the technical field of sealing gaskets, in particular to a battery cover plate sealing gasket which comprises a sealing gasket body, the sealing gasket body is composed of a base layer, an anti-aging layer, an anti-corrosion layer and a pasting film, the base layer is arranged on the outer side of the sealing gasket body, the anti-aging layer is arranged on the back face of the base layer, the anti-corrosion layer is arranged on the back face of the anti-aging layer, and the pasting film is arranged on the back face of the anti-aging layer. The adhesive film is arranged on the back face of the anti-corrosion layer, a sealing strip is arranged between the adhesive film and the anti-corrosion layer, the two sides of the sealing strip are each of a wavy structure design, the right end of the sealing strip is fixedly connected with an easy-to-tear strip, the side, close to the adhesive film, of the anti-corrosion layer is coated with non-cohesive gel, and the surface of the easy-to-tear strip is coated with anti-skid particles. Compared with an existing battery cover plate sealing gasket, the battery cover plate sealing gasket has the advantages that the sealing gasket and the pasting film can be quickly separated through the design of the sealing strips and the transverse shaft, and the overall practicability is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealing gasket, specifically relates to a battery cover plate sealing gasket. BACKGROUND

[0002] Sealing gasket is a kind of gasket for sealing, usually used in battery cover plate, sealing gasket is mainly made of metal or non-metal plate material, is made by cutting, stamping or cutting process, is used for the sealing connection between battery cover plate and battery, with the rapid development of electric vehicle and energy storage system, higher requirements are put forward to the sealing performance of battery pack.

[0003] Traditional sealing gasket when using, often there will be peeling difficult situation, simultaneously, traditional peeling mode mostly adopts manual peeling or manual peeling work with tool, it is extremely easy to cause damage to sealing gasket, cannot guarantee the integrity of sealing gasket.

[0004] Therefore, for the improvement of existing battery cover plate sealing gasket, design a kind of new battery cover plate sealing gasket to solve the above technical defects, improve the practicability of overall battery cover plate sealing gasket, it is particularly important. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of battery cover plate sealing gaskets, by the design of whole, by seal and horizontal shaft, effectively separate film and corrosion-proof layer, while setting rubber block, extrude the space between bolt and round hole, reduce liquid inflow risk, to solve the problems raised in above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of battery cover plate sealing gasket, including sealing gasket, the sealing gasket is composed of base layer, anti-aging layer, corrosion-proof layer and film, the base layer is located at the outer side of sealing gasket, the anti-aging layer is located at the back of base layer, the corrosion-proof layer is located at the back of anti-aging layer, the film is located at the back of corrosion-proof layer, seal is provided between the film and the corrosion-proof layer, the both sides of the seal are wave-shaped structure design, the right end of the seal is fixedly connected with easy tear strip, the side of the corrosion-proof layer close to film is coated with not sticky glue, the surface of the easy tear strip is coated with anti-slip particle.

[0008] As the preferred scheme of the utility model, the horizontal shaft is fixedly connected between the corrosion-proof layer and the film, one end of the horizontal shaft is fixedly connected with the connecting frame, the outer portion of the connecting frame is rotatably connected with the roller.

[0009] As the preferred scheme of the utility model, the inside of the sealing gasket is symmetrically provided with square groove, the outside of the square groove is symmetrically fixedly connected with extension edge, the extension edge is inclined design.

[0010] As the preferred scheme of the utility model, the top end and the bottom end of the sealing gasket are symmetrically provided with round holes, rubber blocks are symmetrically fixedly connected inside the round holes, a plurality of rubber blocks are fixedly connected with arc-shaped edges on the side close to each other, and convex particle is arranged on the surface of the arc-shaped plate.

[0011] As the preferred scheme of the utility model, a plurality of through holes are arranged in the base layer, the through holes are distributed at equal intervals, and expansion balls are fixedly connected inside the through holes.

[0012] As the preferred scheme of the utility model, the anti-aging layer is made of diene ternary ethylene-propylene rubber, and the anticorrosive layer is made of polytetrafluoroethylene.

[0013] As the preferred scheme of the utility model, the four corners of the outer side of the sealing gasket are provided with bevels, and the outer structures of the four groups of bevels are the same in size.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. In the utility model, the sealing strip is separated from the anticorrosive layer by holding the easy-to-tear strip, the adhesive film is completely separated from the anticorrosive layer by winding the adhesive film outside the horizontal shaft, the sealing gasket is prevented from being unevenly attached by rolling the roller up and down, and the bubbles generated by uneven attachment of the sealing gasket are eliminated.

[0016] 2. In the utility model, the two are fixed with the battery shell by the bolt, the bolt is inserted between the round holes, the flexible design of the rubber block is adapted to bolts of different diameters, the convex particles rub against the bolt, liquid is effectively prevented from entering the battery through the bolt, and damage is caused. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole structure schematic view of the utility model;

[0018] Fig. 2 It is a whole back structure schematic view of the utility model;

[0019] Fig. 3 It is a whole separation structure schematic view of the utility model.

[0020] In the drawing: 1, sealing gasket; 2, base layer; 201, through hole; 202, expansion ball; 3, anti-aging layer; 4, anticorrosive layer; 5, adhesive film; 6, sealing strip; 7, easy-to-tear strip; 8, horizontal shaft; 9, connecting frame; 10, roller; 11, square groove; 12, extension edge; 14, round hole; 15, rubber block; 16, convex particle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Embodiment:

[0023] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0024] A battery cover plate sealing gasket, including sealing gasket 1, sealing gasket 1 is composed of base layer 2, anti-aging layer 3, anticorrosive layer 4 and film 5, base layer 2 is located at the outside of sealing gasket 1, anti-aging layer 3 is located at the back of base layer 2, anticorrosive layer 4 is located at the back of anti-aging layer 3, film 5 is located at the back of anticorrosive layer 4, sealing strip 6 is arranged between film 5 and anticorrosive layer 4, both sides of sealing strip 6 are designed as wave-shaped structure, the right end of sealing strip 6 is fixedly connected with easy-to-tear strip 7, the side of anticorrosive layer 4 close to film 5 is coated with non-stick glue, the surface of easy-to-tear strip 7 is coated with anti-slip particles, when it is needed to enhance the sealing connection between battery and battery cover plate, prevent external liquid from entering the inside of battery, cause battery to use paralysis, coating non-stick glue on the back of anticorrosive layer 4, then the operator holds easy-to-tear strip 7 and pulls upwards, then realizes that sealing strip 6 separates film 5 and anticorrosive layer 4, at the same time, anti-slip particles increase the friction between fingers and them, the adhesion is greatly improved, then it is convenient to open.

[0025] Further, in the embodiment, the horizontal shaft 8 is fixedly connected between the anticorrosive layer 4 and the film 5, one end of the horizontal shaft 8 is fixedly connected with the connecting frame 9, the connecting frame 9 is rotatably connected with the roller 10 outside, after the film 5 and the anticorrosive layer 4 are separated, the connecting frame 9 is held and rotated, the horizontal shaft 8 is rotated, then the film 5 is wound outside the horizontal shaft 8, then the horizontal shaft 8 is moved to separate from the anticorrosive layer 4, the film 5 is completely separated from the anticorrosive layer 4, the side of the anticorrosive layer 4 with non-stick glue is attached to the bottom of the battery cover plate, then one end of the horizontal shaft 8 is held, the roller 10 is in contact with the front of the sealing gasket 1, and is rolled up and down with force, so that the sealing gasket 1 is uniformly attached, the bubbles generated by the uneven attachment of the sealing gasket 1 are eliminated, and the sealing property is greatly improved.

[0026] Further, in this embodiment, the inside of the sealing gasket 1 is symmetrically provided with square grooves 11, and the outside of the square grooves 11 is symmetrically fixedly connected with elongated edges 12, which are designed in an inclined manner. When the sealing gasket 1 perfectly fits the battery cover plate, the design of the two groups of square grooves 11 will fit the positive and negative poles of the battery cover plate, and at the same time, the elongated edges 12 will wrap the positive and negative poles of the battery cover plate, greatly improving the safety.

[0027] Further, in this embodiment, the top end and the bottom end of the sealing gasket 1 are symmetrically provided with circular holes 14, and the inside of the circular holes 14 is symmetrically fixedly connected with rubber blocks 15. A plurality of rubber blocks 15 are fixedly connected with arc-shaped edges on one side close to each other, and the surface of the arc-shaped plate is provided with convex particles 16. Only the battery cover plate is connected through the adhesive, and after long-term use, the sealing gasket 1 will fall off. By fixing the two with the battery shell through bolts, the bolts will then be inserted between the circular holes 14. The flexible design of the rubber block 15 will adapt to bolts of different diameters, and at the same time, the convex particles 16 will rub against the bolts, effectively preventing liquid from entering the battery through the bolts, causing damage.

[0028] Further, in this embodiment, the inside of the base layer 2 is provided with a plurality of through holes 201, which are distributed at equal intervals. The inside of the through holes 201 is fixedly connected with expansion balls 202. When the sealing gasket 1 is in use, the liquid spreads to the inside. First, the liquid will directly contact the expansion balls 202. The expansion balls 202 will swell after encountering water, filling the through holes 201. At the same time, the expansion balls 202 will absorb the moisture. When the battery is in use, heat will be generated, evaporating the moisture inside the expansion balls 202. This can effectively prevent the liquid from directly contacting the battery, causing risks.

[0029] Further, in this embodiment, the anti-aging layer 3 is made of diene EPDM rubber, and the corrosion-resistant layer 4 is made of polytetrafluoroethylene. Diene EPDM rubber can maintain stable performance in high temperature, low temperature, ultraviolet radiation, and harsh environments such as heat, light, oxygen, and ozone, resist erosion, and thus prolong the service life. Its unique elasticity allows the sealing gasket 1 to adapt to sealing surfaces of different shapes and sizes, and to maintain stable performance in corrosive environments such as acid, alkali, and salt. Polytetrafluoroethylene is a material with excellent corrosion resistance, which can resist a wide range of strong corrosive chemicals. At the same time, the polytetrafluoroethylene gasket also has good anti-creeper cold flow performance, which can ensure the stable maintenance of the bolt fastening force during the sealing process.

[0030] Further, in this embodiment, the four corners of the outside of the sealing gasket 1 are provided with beveled edges, and the four groups of beveled edges have the same size. The four corners of the sealing gasket 1 are designed in an inclined manner, which is convenient for taking.

[0031] In the embodiment, the specific implementation scenario is: when the sealed connection between the battery and the battery cover plate needs to be enhanced, the external liquid is prevented from entering the battery, and the battery is prevented from being paralyzed in use, the back of the corrosion layer 4 is coated with non-stick glue, then the operator holds the easy-to-tear strip 7 and pulls it upwards, so that the sealing strip 6 separates the adhesive film 5 and the corrosion layer 4, and the anti-skid particles increase the friction between the fingers and the anti-skid particles, the adhesion is greatly improved, and then the opening is facilitated, the connecting frame 9 is held and rotated, the horizontal shaft 8 is rotated, then the adhesive film 5 is wound outside the horizontal shaft 8, then the horizontal shaft 8 is moved away from the corrosion layer 4, the adhesive film 5 is completely separated from the corrosion layer 4, the back of the corrosion layer 4 is attached to the bottom of the battery cover plate, then one end of the horizontal shaft 8 is held, the roller 10 is in contact with the sealing gasket 1, and the sealing gasket 1 is rolled up and down, the sealing gasket 1 is prevented from being unevenly attached, the bubbles generated by the uneven attachment of the sealing gasket 1 are eliminated, the two groups of square grooves 11 are designed to attach the positive and negative poles of the battery cover plate, and the extension edges 12 wrap the positive and negative poles of the battery cover plate, and only the non-stick glue is connected with the battery cover plate, and after long-term use, the sealing gasket 1 is prone to falling off, the bolts are used to fix the two to the battery shell, then the bolts are inserted between the circular holes 14, the flexible design of the rubber blocks 15 is suitable for bolts of different diameters, the convex particles 16 rub against the bolts, liquid is effectively prevented from entering the battery through the bolts, and the battery is damaged, when the sealing gasket 1 is in use, liquid spreads to the inside, first, the liquid directly contacts the expansion ball 202, the expansion ball 202 expands after being contacted with water, fills the through hole 201, and absorbs water, and when the battery is in use, heat is generated to evaporate the water in the expansion ball 202, which can effectively prevent the liquid from directly contacting the battery and causing risks, the diene EPDM can maintain stable performance in harsh environments such as high temperature, low temperature, ultraviolet radiation, heat, light, oxygen and ozone for a long time, resist erosion, and prolong the service life, the unique elasticity of the diene EPDM enables the sealing gasket 1 to adapt to sealing surfaces of different shapes and sizes, and the diene EPDM can maintain stable performance in corrosive environments such as acid, alkali and salt, and the polytetrafluoroethylene is a material with excellent corrosion resistance, which can resist a wide range of strong corrosive chemicals, and the polytetrafluoroethylene gasket also has good anti-cold flow performance, which can ensure the stability of the bolt fastening force during sealing.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A battery cover plate gasket comprising a gasket (1), characterized in that: The sealing gasket (1) is composed of a base layer (2), an anti-aging layer (3), a corrosion-resistant layer (4) and a film (5), the base layer (2) is arranged on the outer side of the sealing gasket (1), the anti-aging layer (3) is arranged on the back of the base layer (2), the corrosion-resistant layer (4) is arranged on the back of the anti-aging layer (3), the film (5) is arranged on the back of the corrosion-resistant layer (4), the film (5) and the corrosion-resistant layer (4) are provided with a seal (6), the both sides of the seal (6) are designed in a wave shape, the right end of the seal (6) is fixedly connected with a tear strip (7), the side of the corrosion-resistant layer (4) close to the film (5) is coated with a non-stick glue, and the surface of the tear strip (7) is coated with anti-skid particles.

2. A battery cover gasket as defined in claim 1, wherein: The corrosion-resistant layer (4) and the film (5) are fixedly connected with a horizontal shaft (8), one end of the horizontal shaft (8) is fixedly connected with a connecting frame (9), and the outer part of the connecting frame (9) is rotatably connected with a roller (10).

3. The battery cover gasket of claim 1, wherein: The inside of the sealing gasket (1) is symmetrically provided with a square groove (11), and the outside of the square groove (11) is fixedly connected with an extension edge (12) symmetrically, and the extension edge (12) is designed in an inclined manner.

4. The battery cover gasket of claim 1, wherein: The top end and the bottom end of the sealing gasket (1) are symmetrically provided with a circular hole (14), the inside of the circular hole (14) is fixedly connected with a rubber block (15) symmetrically, a plurality of rubber blocks (15) are fixedly connected with an arc-shaped edge on the side close to each other, and the surface of the arc-shaped plate is provided with convex particles (16).

5. The battery cover gasket of claim 1, wherein: The inside of the base layer (2) is provided with a plurality of through holes (201), the through holes (201) are distributed at equal intervals, and the inside of the through holes (201) is fixedly connected with an expansion ball (202).

6. The battery cover gasket of claim 1, wherein: The anti-aging layer (3) is made of diene ternary ethylene-propylene rubber, and the corrosion-resistant layer (4) is made of polytetrafluoroethylene.

7. The battery cover gasket of claim 1, wherein: The outer side of the sealing gasket (1) is provided with an inclined edge at four corners, and the outer structures of the four inclined edges are the same in size. The outside of the sealing gasket (1) is provided with an inclined edge at four corners, and the outer structures of the four inclined edges are the same in size.

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