Integral injection molding storage battery exhaust cover structure and storage battery

Abstract

The utility model provides an integral injection molding storage battery exhaust cover structure and a storage battery, and belongs to the technical field of storage batteries, the integral injection molding storage battery exhaust cover structure comprises an exhaust cover body, the two sides of the exhaust cover body are respectively provided with an exhaust passage communicated with the outside, the two sides of the exhaust cover body are further provided with fixing structures, and air filtering pieces are arranged in the fixing structures. The air filtering piece, the exhaust cover body and the fixing structure are integrally formed in an injection molding mode, the inner end face of the air filtering piece and the exhaust cover body form a ventilation cavity communicated with the exhaust channel, and the fixing structure is provided with an air inlet gap allowing air in the storage battery groove to enter from the outer end face and the circumferential side face of the air filtering piece. According to the integrally injection-molded exhaust cover structure of the storage battery provided by the utility model, the air filtering sheet and the exhaust cover are integrally injection-molded, so that a plurality of mounting procedures are avoided, and the production efficiency is improved.

Description

Technical Field

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

[0002] After the battery tank is equipped with pole groups, the battery cover and exhaust cover should be installed on the upper part of the tank body. The exhaust cover is heat-sealed on the top of the cover. A labyrinth passage is provided between the cover and the exhaust cover corresponding to each cell of the battery. A ventilation cavity containing a gas filter is provided on both sides of the exhaust cover, and an exhaust duct is provided between the ventilation cavity and the outer wall of the exhaust cover. The gas generated during the use of the battery first passes through the labyrinth passage, and then is discharged to the outside of the battery through the gas filter, the ventilation cavity, and the exhaust duct. Among them, the gas filter can play a role in allowing the gas to be discharged smoothly but preventing the acid liquid from passing through.

[0003] The traditional production process of battery exhaust cover is as follows: first, the exhaust cover is injection molded (the exhaust cover is provided with a filter chamber); then the filter is pressed into the filter chamber of the exhaust cover and the filter is pressed tightly; a heat sealing process is also required to heat seal the filter to the exhaust cover to play the role of exhaust and acid blocking. The problem is that the installation of the traditional filter (formation of the air permeable cavity on the exhaust cover) requires multiple subsequent processes to complete, which is time-consuming and labor-intensive, and has low work efficiency. Utility Model Content

[0004] The utility model aims to provide an integrally injection-molded battery exhaust cover structure, aiming to solve the problem that the installation of an air filter requires multiple subsequent processes to complete, which is time-consuming and labor-intensive and has low work efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an integrally injection-molded battery exhaust cover structure, including an exhaust cover body, exhaust ducts connected to the outside are respectively arranged on both sides of the exhaust cover body, and fixed structures are also arranged on both sides of the exhaust cover body, and an air filter is arranged in the fixed structure, and the air filter is integrally injection-molded with the exhaust cover body and the fixed structure, the inner end surface of the air filter and the exhaust cover body form an air permeable cavity connected to the exhaust duct, and the fixed structure has an air intake gap for gas in the battery slot to enter from the outer end surface and surrounding side surface of the air filter.

[0006] In a possible implementation, the fixed structure includes a fixed upper ring and a fixed lower ring, and the fixed upper ring and the fixed lower ring are circumferentially connected with a plurality of connectors, the air filter is located between the fixed upper ring and the fixed lower ring, the fixed upper ring is integrally injection molded on the lower end surface of the exhaust cover body, and the inner hole of the fixed lower ring and the gap between the adjacent connectors form the air intake gap.

[0007] In a possible implementation, the upper end surface of the air filter is flush with the lower end surface of the exhaust cover body.

[0008] In a possible implementation, the inner wall of the fixed upper ring is embedded in the upper part of the air filter, the plurality of connectors are embedded in the outer wall of the air filter, and the upper end surface of the fixed lower ring is embedded in the lower end surface of the air filter.

[0009] In a possible implementation, the fixed upper ring, the fixed lower ring, and the plurality of connectors are integrally injection molded.

[0010] In a possible implementation, the air filter sheet is a rectangular sheet or a circular sheet.

[0011] In a possible implementation, the air filter is made of air-permeable and water-impermeable PP material.

[0012] The beneficial effects of the battery exhaust cover structure provided by the utility model through integral injection molding are as follows: compared with the prior art, the two sides of the exhaust cover body are respectively provided with fixed structures, the air filter plate is integrally injection molded with the exhaust cover body and the fixed structure, the inner end surface of the air filter plate and the exhaust cover body form an air permeable cavity connected to the exhaust duct, and the fixed structure has an air intake gap for the gas in the battery slot to enter from the outer end surface and the surrounding side surface of the air filter plate. The gas in the battery slot passes through the air intake gap, from the outer end surface and the surrounding side surface of the air filter plate, through the air filter plate, into the air permeable cavity, and is finally discharged through the exhaust duct. The battery exhaust cover structure provided by the utility model through integral injection molding, the air filter plate and the exhaust cover are integrally injection molded, which eliminates many installation processes and improves production efficiency.

[0013] The utility model also provides a storage battery, comprising the storage battery exhaust cover structure formed by integral injection molding.

[0014] The beneficial effect of a storage battery provided by the utility model is that: compared with the prior art, since the above-mentioned integrally injection-molded storage battery exhaust cover structure is used, it has the same beneficial effect as the integrally injection-molded storage battery exhaust cover structure, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A bottom view of an integrally injection molded battery exhaust cover structure provided by an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A magnified stereoscopic image of point C in the middle;

[0018] Figure 3 for Figure 1 Sectional view along AA;

[0019] Figure 4 for Figure 3 A partial enlarged view of point D in the middle;

[0020] Figure 5 for Figure 1 Sectional view along BB;

[0021] Figure 6 for Figure 5 A partial enlarged view of point E in the middle.

[0022] Description of reference numerals:

[0023] 1. Exhaust cover body; 2. Exhaust duct; 3. Air permeability cavity; 4. Air intake gap; 5. Fixed upper ring; 6. Fixed lower ring; 7. Connector; 8. Air filter. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 6 Now, an integrally injection-molded battery exhaust cover structure provided by the utility model is described. An integrally injection-molded battery exhaust cover structure comprises an exhaust cover body 1, exhaust passages 2 communicating with the outside are respectively arranged on both sides of the exhaust cover body 1, and a fixed structure is also arranged on both sides of the exhaust cover body 1, and an air filter 8 is arranged in the fixed structure, and the air filter 8 is integrally injection-molded with the exhaust cover body 1 and the fixed structure, and the inner end surface of the air filter 8 and the exhaust cover body 1 form an air permeable cavity 3 communicating with the exhaust passage 2, and the fixed structure has an air intake gap 4 for gas in the battery slot to enter from the outer end surface and the surrounding side surface of the air filter 8.

[0026] The utility model provides an integrally injection-molded battery exhaust cover structure. Compared with the prior art, the exhaust cover body 1 is provided with fixed structures on both sides thereof, the air filter 8 is integrally injection-molded with the exhaust cover body 1 and the fixed structure, the inner end surface of the air filter 8 and the exhaust cover body 1 form a breathable cavity 3 connected with the exhaust duct 2, and the fixed structure is provided with an air intake gap 4 for the gas in the battery tank to enter from the outer end surface and the surrounding side surface of the air filter 8. The gas in the battery tank passes through the air intake gap 4, from the outer end surface and the surrounding side surface of the air filter 8, through the air filter 8, into the breathable cavity 3, and is finally discharged through the exhaust duct 2. The utility model provides an integrally injection-molded battery exhaust cover structure. The air filter 8 and the exhaust cover are integrally injection-molded, which eliminates many installation processes and improves production efficiency.

[0027] See also Figure 2 The fixed structure includes a fixed upper ring 5 and a fixed lower ring 6, and a plurality of connectors 7 are circumferentially connected to the fixed upper ring 5 and the fixed lower ring 6. The air filter 8 is located between the fixed upper ring 5 and the fixed lower ring 6. The fixed upper ring 5 is integrally injection-molded on the lower end surface of the exhaust cover body 1, and the inner hole of the fixed lower ring 6 and the gap between the adjacent connectors 7 form an air intake gap 4.

[0028] Specifically, a plurality of connectors 7 are evenly arranged between the fixed upper ring 5 and the fixed lower ring 6 in the circumferential direction, thereby forming a plurality of lateral gaps, the inner hole of the fixed lower ring 6 forms a lower gap, and the plurality of lateral gaps and the lower gap together constitute the above-mentioned air intake gap 4, ensuring that the gas passes through the air filter 8 from the outer end face and the surrounding side face of the air filter 8, and the outer end face and the surrounding side face of the air filter 8 can be used to achieve the acid-blocking and air-permeable function. The fixed upper ring 5, the fixed lower ring 6 and the plurality of connectors 7 are integrally formed and integrally injection molded with the exhaust cover body 1. When the air filter 8 and the fixed structure are integrally injection molded, the inner wall of the fixed upper ring 5 is embedded in the upper part of the air filter 8, the plurality of connectors 7 are embedded in the outer wall of the air filter 8, and the upper end face of the fixed lower ring 6 is embedded in the lower end face of the air filter 8, so that the air filter 8 forms a close matching relationship with the fixed upper ring 5, the fixed lower ring 6 and the plurality of connectors 7, respectively, to ensure the structural strength. At the same time, the inner wall of the fixed upper ring 5 is embedded in the upper part of the air filter 8, which can also improve the sealing effect of the upper part of the air filter 8 and ensure that all the gas passing through the air filter 8 enters the air permeable cavity 3.

[0029] In addition, the air filter sheet 8 is a planar structure, such as a rectangular sheet structure or a circular sheet structure, and the upper end surface of the air filter sheet 8 is flush with the lower end surface of the exhaust cover body 1. The air filter sheet 8 is made of air-permeable and water-impermeable PP material, such as expanded polytetrafluoroethylene.

[0030] Based on the same concept, the utility model also provides a storage battery, which uses the above-mentioned integral injection-molded storage battery exhaust cover structure.

[0031] 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. An integrally injection molded battery exhaust cover structure, characterized in that: The invention comprises an exhaust cover body (1), wherein exhaust passages (2) communicating with the outside are respectively arranged on both sides of the exhaust cover body (1), and a fixing structure is also arranged on both sides of the exhaust cover body (1), and an air filter (8) is arranged inside the fixing structure, and the air filter (8) is integrally injection-molded with the exhaust cover body (1) and the fixing structure, and the inner end surface of the air filter (8) and the exhaust cover body (1) form an air permeable cavity (3) communicating with the exhaust passages (2), and the fixing structure has an air intake gap (4) for gas in the battery slot to enter from the outer end surface and the peripheral side surface of the air filter (8).

2. The integrally injection molded battery exhaust cover structure according to claim 1, characterized in that: The fixed structure comprises a fixed upper ring (5) and a fixed lower ring (6), wherein the fixed upper ring (5) and the fixed lower ring (6) are circumferentially connected with a plurality of connectors (7), the air filter (8) is located between the fixed upper ring (5) and the fixed lower ring (6), the fixed upper ring (5) is integrally injection-molded on the lower end surface of the exhaust cover body (1), and the inner hole of the fixed lower ring (6) and the gap between the adjacent connectors (7) form the air intake gap (4).

3. The integrally injection molded battery exhaust cover structure as claimed in claim 2, characterized in that: The upper end surface of the air filter (8) is flush with the lower end surface of the exhaust cover body (1).

4. The integrally injection molded battery exhaust cover structure as claimed in claim 2, characterized in that: The inner wall of the fixed upper ring (5) is embedded in the upper part of the air filter (8), the plurality of connectors (7) are embedded in the outer wall of the air filter (8), and the upper end surface of the fixed lower ring (6) is embedded in the lower end surface of the air filter (8).

5. The integrally injection molded battery exhaust cover structure as claimed in claim 2, characterized in that: The fixed upper ring (5), the fixed lower ring (6) and the plurality of connectors (7) are integrally injection-molded.

6. The integrally injection molded battery exhaust cover structure according to claim 1, characterized in that: The air filter sheet (8) is a rectangular sheet or a circular sheet.

7. The integrally injection molded battery exhaust cover structure as claimed in claim 1, characterized in that: The air filter (8) is made of air-permeable and water-impermeable PP material.

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

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