Storage battery exhaust cover structure and storage battery

Abstract

The utility model provides a storage battery exhaust cover structure and a storage battery, and belongs to the technical field of storage batteries, the storage battery exhaust cover structure comprises an exhaust cover body and an air filtering sheet, the lower end face of the exhaust cover body is provided with a labyrinth structure, two sides of the lower end face of the exhaust cover body are respectively provided with a fixed table, and the fixed table is lower than the labyrinth structure. The two sides of the lower end face of the exhaust cover body are each transversely provided with an exhaust channel, one end of the inner side of each exhaust channel communicates with an inner cavity of the corresponding installation groove, and one end of the outer side of each exhaust channel communicates with the outside. According to the exhaust cover structure of the storage battery provided by the utility model, the height of the fixed table is lower than that of the labyrinth structure, so that an enough gap is formed between the exhaust cover and the plastic cover after the exhaust cover and the plastic cover are subjected to hot melting, and accumulated liquid can smoothly flow back. In addition, the air filtering piece is embedded and hot-melted in the mounting groove through the combining side face on the upper portion of the circumferential direction, so that the air filtering piece is more convenient to assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage batteries, and more specifically relates to a storage battery exhaust cover structure and a storage battery. Background Art

[0002] A pole group is assembled in the battery slot, a large battery cover is assembled on the top of the battery, a heat-sealed exhaust cover is mounted on the large battery cover, a labyrinth structure is arranged on the lower end face of the exhaust cover, air filters are arranged on both sides of the exhaust cover, an exhaust duct is arranged on the outer wall of the exhaust cover next to the air filter, and the gas generated during the use of the battery first passes through the labyrinth channel, and then is discharged to the outside of the battery through the air filter and the exhaust duct, and the air filter can make the gas be discharged smoothly and prevent the liquid from passing through.

[0003] When assembling the air filter, first press the air filter into the fixing platform to form the inside of the air filter chamber, then use a pressure ring to press the air filter from the outside, and then heat seal the air filter to the airway. The above assembly process requires multiple steps to complete, the operation is cumbersome, and because the fixing platform is high, it will also cause a small gap with the plastic cover after heat sealing, blocking the problem of reflux of accumulated liquid. Utility Model Content

[0004] The utility model aims to provide a battery exhaust cover structure, aiming to solve the problem that the assembly process of the air filter is complicated and the fixing platform is relatively high and blocks the backflow of the accumulated liquid.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a battery exhaust cover structure, including an exhaust cover body and an air filter, the lower end surface of the exhaust cover body is provided with a maze structure, and fixed platforms are respectively provided on both sides of the lower end surface of the exhaust cover body, the height of the fixed platform is lower than the height of the maze structure, and a mounting groove is provided in the middle of the fixed platform, and the air filter is embedded in the mounting groove from bottom to top, the upper part of the outer wall of the air filter is provided with a combining side surface, and the lower part of the outer wall of the air filter is provided with an air filtering side surface, the air filter is hot-melt connected to the lower part of the inner wall of the mounting groove through the combining side surface, and the air filtering side surface is located below the fixed platform, and exhaust channels are also horizontally provided on both sides of the lower end surface of the exhaust cover body, the inner end of the exhaust channel is connected to the inner cavity of the mounting groove, and the outer end of the exhaust channel is connected to the outside.

[0006] In a possible implementation, the height of the combining side surface is greater than the height of the air filtering side surface.

[0007] In one possible implementation, a ventilation groove is transversely opened in the middle of the upper end surface of the air filter, and a protrusion block is transversely arranged in the middle of the lower end surface of the mounting groove, the height of the protrusion block is less than the depth of the ventilation groove, and the protrusion block is inserted into the ventilation groove to form a connecting channel connected to the exhaust channel.

[0008] In a possible implementation, the lower end surface of the ventilation groove is a plane, and the lower end surface of the protruding block is an arc-shaped concave surface.

[0009] In one possible implementation, the cross-sectional area of ​​the lower portion of the air filter is larger than the cross-sectional area of ​​the upper portion of the air filter, and a stepped platform is formed circumferentially in the middle of the outer wall of the air filter, and the upper end surface of the stepped platform forms a bonding end surface, and the bonding end surface is circumferentially hot-melt connected to the lower end surface of the fixing platform.

[0010] In a possible implementation, the cross-section of the air filter is rectangular or circular.

[0011] In a possible implementation, the longitudinal cross-sectional area of ​​the exhaust passage increases from inside to outside.

[0012] The utility model provides a battery exhaust cover structure with the beneficial effect that: compared with the prior art, the gas in the battery enters the interior of the installation groove through the lower end surface and the filter side of the air filter, and is then discharged to the outside through the exhaust channel. The air filter can allow the gas to be discharged smoothly and block the acid in the battery from passing through. The utility model provides a battery exhaust cover structure, in which the height of the fixed platform is lower than the height of the maze structure, ensuring that after the exhaust cover and the plastic cover are hot-fused, there is a sufficient gap between the two, so that the accumulated liquid can flow back smoothly. In addition, the air filter is embedded and hot-fused in the installation groove through the circumferential upper joint side, so that the assembly method of the air filter is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of a battery exhaust cover provided by the utility model;

[0015] Figure 2 for Figure 1 Partial cross-sectional view along AA;

[0016] Figure 3 for Figure 2 A structural schematic diagram of another embodiment of the present invention;

[0017] Figure 4 for Figure 3 Schematic diagram of the structure of the middle air filter;

[0018] Figure 5 for Figure 3 Schematic diagram of the structure of the middle exhaust cover body.

[0019] Description of reference numerals:

[0020] 100, exhaust cover body; 110, labyrinth structure; 120, fixing platform; 130, mounting groove; 131, raised block; 140, exhaust channel; 200, air filter; 210, air filter side; 220, joint side; 230, joint end face; 240, ventilation groove. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] See also Figures 1 to 5 Now, a battery exhaust cover structure provided by the utility model is described. A battery exhaust cover structure comprises an exhaust cover body 100 and an air filter 200. A labyrinth structure 110 is provided on the lower end surface of the exhaust cover body 100. Fixing platforms 120 are respectively provided on both sides of the lower end surface of the exhaust cover body 100. The height of the fixing platform 120 is lower than the height of the labyrinth structure 110. A mounting groove 130 is provided in the middle of the fixing platform 120. The air filter 200 is embedded in the mounting groove 130 from bottom to top. The upper part of the outer wall of the air filter 200 is provided with a combining side surface 220, and the lower part of the outer wall of the air filter 200 is provided with an air filtering side surface 210. The air filter 200 is hot-melt-connected with the lower part of the inner wall of the mounting groove 130 through the combining side surface 220. The air filtering side surface 210 is located below the fixing platform 120. Exhaust channels 140 are also laterally provided on both sides of the lower end surface of the exhaust cover body 100. One inner end of the exhaust channel 140 is connected to the inner cavity of the mounting groove 130, and one outer end of the exhaust channel 140 is connected to the outside.

[0023] The utility model provides a battery exhaust cover structure. Compared with the prior art, the gas in the battery enters the interior of the mounting groove 130 through the lower end surface of the air filter 200 and the air filter side surface 210, and then is discharged to the outside through the exhaust channel 140. The air filter 200 can smoothly discharge the gas and block the acid liquid in the battery from passing through. The utility model provides a battery exhaust cover structure. The height of the fixing platform 120 is lower than the height of the maze structure 110, ensuring that after the exhaust cover and the plastic cover are hot-fused, there is a sufficient gap between the two, so that the accumulated liquid can flow back smoothly. In addition, the air filter 200 is embedded and hot-fused in the mounting groove 130 through the circumferential upper bonding side surface 220, so that the assembly method of the air filter 200 is simpler.

[0024] Specifically, the height of the bonding side 220 is greater than the height of the air filter side 210, and the height of the bonding side 220 of the air filter 200 is greater than half the thickness of the air filter 200. The bonding side 220 is the hot melt bonding surface between the air filter 200 and the fixing platform 120. The bonding side 220 and the fixing platform 120 have sufficient contact area to ensure the stability of the assembly of the air filter 200 and avoid liquid leakage.

[0025] See also Figures 3 to 5 A ventilation groove 240 is horizontally opened in the middle of the upper end surface of the air filter 200, and a protrusion block 131 is horizontally arranged in the middle of the lower end surface of the mounting groove 130. The height of the protrusion block 131 is less than the depth of the ventilation groove 240. The protrusion block 131 is inserted into the ventilation groove 240 to form a connecting channel connected to the exhaust channel 140.

[0026] Specifically, the protruding block 131 and the ventilation groove 240 are inserted into each other to provide an internal guide for the assembly of the air filter 200 in the mounting groove 130. The lower end surface of the air filter 200 abuts against the bottom surface of the mounting groove 130. Since the height of the protruding block 131 is less than the depth of the ventilation groove 240, when the air filter 200 is installed in place in the mounting groove 130, a connecting channel is provided between the protruding block 131 and the ventilation groove 240. The connecting channel is connected to the exhaust channel 140, thereby guiding the gas passing through the air filter 200 into the exhaust channel 140 and finally discharged to the outside.

[0027] Preferably, the lower end surface of the ventilation groove 240 is a plane, that is, the ventilation groove 240 is a conventional rectangular groove; the lower end surface of the protruding block 131 is an arc-shaped concave surface, which can make the connecting channel have a larger cross-section, ensuring smoother passage of gas.

[0028] See also Figures 3 to 5 The cross-sectional area of ​​the lower part of the air filter 200 is greater than the cross-sectional area of ​​the upper part of the air filter 200, and a stepped platform is formed in the circumferential direction of the middle part of the outer wall of the air filter 200. The upper end surface of the stepped platform forms a bonding end surface 230, and the bonding end surface 230 is circumferentially hot-melted to the lower end surface of the fixing platform 120. The bonding end surface 230 on the stepped platform is circumferentially hot-melted to the lower end surface of the fixing platform 120, which can further improve the stability of the installation of the air filter 200. Even if the hot-melting effect of the bonding side surface 220 is not good locally, the sealing effect of the air filter 200 can still be maintained, and the liquid can be effectively blocked from passing under the premise of ensuring the smooth passage of gas.

[0029] Specifically, the cross-section of the air filter 200 is rectangular or circular. The shape of the air filter 200 is determined according to usage requirements and may also be other shapes, which will not be described in detail here.

[0030] See also Figure 3The longitudinal cross-sectional area of ​​the exhaust passage 140 increases from the inside to the outside, ensuring that the gas passing through the air filter 200 can be discharged smoothly, reducing the situation of holding the exhaust passage 140 during exhaust.

[0031] Based on the same inventive concept, the utility model also provides a battery, which uses the above-mentioned battery exhaust cover structure.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery exhaust cover structure, characterized in that: The invention comprises an exhaust cover body (100) and an air filter (200), wherein the lower end surface of the exhaust cover body (100) is provided with a labyrinth structure (110), and fixing platforms (120) are respectively provided on both sides of the lower end surface of the exhaust cover body (100), wherein the height of the fixing platform (120) is lower than the height of the labyrinth structure (110), and a mounting groove (130) is provided in the middle of the fixing platform (120), and the air filter (200) is embedded in the mounting groove (130) from bottom to top, and the upper part of the outer wall of the air filter (200) is provided with a coupling side surface (220) ), the lower part of the outer wall of the air filter (200) is provided with an air filtering side surface (210), the air filter (200) is connected to the lower part of the inner wall of the mounting groove (130) by heat-melting through the combining side surface (220), the air filtering side surface (210) is located below the fixing platform (120), and exhaust channels (140) are also laterally arranged on both sides of the lower end surface of the exhaust cover body (100), the inner end of the exhaust channel (140) is connected to the inner cavity of the mounting groove (130), and the outer end of the exhaust channel (140) is connected to the outside.

2. A battery exhaust cover structure as claimed in claim 1, characterized in that: The height of the combining side surface (220) is greater than the height of the air filtering side surface (210).

3. A battery exhaust cover structure as claimed in claim 1, characterized in that: A ventilation groove (240) is transversely provided in the middle of the upper end surface of the air filter (200), and a protrusion block (131) is transversely provided in the middle of the lower end surface of the mounting groove (130), wherein the height of the protrusion block (131) is less than the depth of the ventilation groove (240), and the protrusion block (131) is inserted into the ventilation groove (240) to form a connecting channel connected to the exhaust channel (140).

4. A battery exhaust cover structure as claimed in claim 3, characterized in that: The lower end surface of the ventilation groove (240) is a plane, and the lower end surface of the protruding block (131) is an arc-shaped concave surface.

5. A battery exhaust cover structure as claimed in claim 1, characterized in that: The cross-sectional area of ​​the lower part of the air filter (200) is greater than the cross-sectional area of ​​the upper part of the air filter (200), and a stepped platform is formed in the circumferential direction of the middle part of the outer wall of the air filter (200), and the upper end surface of the stepped platform forms a connecting end surface (230), and the connecting end surface (230) is circumferentially hot-melt-connected with the lower end surface of the fixing platform (120).

6. A battery exhaust cover structure as claimed in claim 1, characterized in that: The cross section of the air filter (200) is rectangular or circular.

7. A battery exhaust cover structure as claimed in claim 1, characterized in that: The longitudinal cross-sectional area of ​​the exhaust channel (140) increases from the inside to the outside.

8. A storage battery, characterized in that: It comprises a battery exhaust cover structure as described in any one of claims 1 to 7.

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