CN-224232853-U - Double exhaust valve structure of lead-acid storage battery

Abstract

The utility model discloses a double exhaust valve structure of a lead-acid storage battery in the technical field of lead-acid storage batteries, which comprises a battery upper cover, wherein the battery upper cover is provided with two first exhaust valve seats and two second exhaust valve seats, the first exhaust valve seats are internally provided with first exhaust valves, the second exhaust valve seats are internally provided with second exhaust valves, and the first exhaust valve seats and the second exhaust valve seats are respectively communicated with independent air passages in the lead-acid storage battery. Two mutually independent valve seats are arranged at the top of the lead-acid storage battery, and each valve seat is provided with an exhaust valve respectively to form a double exhaust valve structure. The reasonable design of the positions of the two valve seats at the top of the battery ensures the uniformity of exhaust and avoids the mutual influence caused by the too close positions. The valve seat is made of high-strength corrosion-resistant engineering plastic, such as ABS, so that the valve seat can bear the pressure in the battery and the corrosion of electrolyte in the whole service life of the battery, and the structure is kept stable.

Inventors

• WANG XINGFENG
• FENG WEI
• JIN WEI

Assignees

• 江苏华富绿储新技术有限公司

Dates

Publication Date

20260512

Application Date

20250428

Claims (6)

1. 1. The double exhaust valve structure of the lead-acid storage battery comprises a battery upper cover (1) and is characterized in that two first exhaust valve seats (2) and second exhaust valve seats (3) are arranged on the battery upper cover (1), a first exhaust valve (4) is arranged in the first exhaust valve seats (2), a second exhaust valve (5) is arranged in the second exhaust valve seats (3), and the first exhaust valve seats (2) and the second exhaust valve seats (3) are respectively communicated with independent air passages in the lead-acid storage battery.
2. 2. The double-exhaust structure of the lead-acid storage battery according to claim 1, wherein a first rubber sealing gasket is arranged between the first exhaust valve seat (2) and the first exhaust valve (4), and a second rubber sealing gasket is arranged between the second exhaust valve seat (3) and the second exhaust valve (5).
3. 3. The double exhaust structure of lead-acid storage battery according to claim 1, wherein independent air passages respectively connected with the first exhaust valve seat (2) and the second exhaust valve seat (3) are not communicated with each other.
4. 4. The double-exhaust structure of the lead-acid storage battery according to claim 1, wherein the battery upper cover (1) is provided with a positive electrode mark (9) and a negative electrode mark (8), and the battery upper cover (1) is provided with a positive electrode wiring port (6) and a negative electrode wiring port (7).
5. 5. The double-exhaust structure of the lead-acid storage battery according to claim 1, wherein the lower part of the upper cover (1) of the battery is fixedly connected with a step plate (12), the upper cover (1) of the battery is provided with a groove (10), and the upper part of the groove (10) is provided with an arch plate (11).
6. 6. The double-exhaust structure of the lead-acid storage battery according to claim 1, wherein the second exhaust valve (5) is provided with a cover plate (53), the cover plate (53) is connected with the valve body shell (51) through a connecting lug (52), and the cover plate (53) is provided with an exhaust hole (54).

Description

Double exhaust valve structure of lead-acid storage battery Technical Field The utility model relates to the technical field of lead-acid storage batteries, in particular to a double-exhaust structure of a lead-acid storage battery. Background The lead-acid storage battery can generate gases such as hydrogen, oxygen and the like in the charging and discharging process, and the gases need to be discharged out of the battery in time so as to prevent the internal pressure of the battery from being too high, influence the performance of the battery and even cause safety problems. The traditional lead-acid storage battery generally adopts a single exhaust valve structure, and once the exhaust valve is blocked, damaged or sealed poorly, the gas can not be normally exhausted, the internal pressure of the battery is rapidly increased, and further serious consequences such as opening of a safety valve and even rupture of a battery shell are caused. In addition, in the working process of the single exhaust valve, due to the impact of electrolyte in the battery and the influence of complex chemical environment, the acid leakage phenomenon easily occurs at the valve port, so that not only can the peripheral equipment of the battery be corroded, but also the electrolyte loss can be caused, and the service life of the battery is reduced. Therefore, the development of a more reliable and safe exhaust valve structure is of great significance to the development of lead-acid batteries. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model provides a double exhaust valve structure of a lead-acid storage battery, which comprises a battery upper cover, wherein the battery upper cover is provided with two first exhaust valve seats and two second exhaust valve seats, the first exhaust valve seats are internally provided with first exhaust valves, the second exhaust valve seats are internally provided with second exhaust valves, and the first exhaust valve seats and the second exhaust valve seats are respectively communicated with independent air passages in the lead-acid storage battery. The two exhaust valves are respectively arranged on independent valve seats, and each valve seat is communicated with the interior of the lead-acid storage battery through independent air passages, which means that each exhaust valve is positioned in the independent valve seat and is directly connected with the interior of the battery through the respective passage. A first rubber sealing gasket is arranged between the first exhaust valve seat and the first exhaust valve, and a second rubber sealing gasket is arranged between the second exhaust valve seat and the second exhaust valve. The lead-acid storage battery cover and the double exhaust valves are reasonably designed and manufactured by adopting a plastic injection molding process. In the manufacturing process, the formula and the molding process parameters of the materials are strictly controlled, and the mechanical strength and the corrosion resistance of the lead-acid storage battery cover are ensured. The independent air passages respectively connected with the first exhaust valve seat and the second exhaust valve seat are not communicated with each other. The valve seat is made of high-strength and corrosion-resistant engineering plastic, the engineering plastic is ABS (Acrylonitrile butadiene styrene) so as to bear the internal pressure of the battery and the corrosion of electrolyte, and the ABS material is selected on the basis of the chemical stability and the physical property of the ABS material, so that the structural integrity and the functional effectiveness can be maintained even if the ABS material is exposed to a severe working environment for a long time. The battery upper cover is provided with a positive electrode mark and a negative electrode mark, and the battery upper cover is provided with a positive electrode wiring port and a negative electrode wiring port. The lower part fixedly connected with step board of battery upper cover, be equipped with flutedly on the battery upper cover, the upper portion of recess is equipped with the arched plate. The second exhaust valve is provided with a cover plate, the cover plate is connected with the valve body shell through a connecting lug, and the cover plate is provided with an exhaust hole. Compared with the prior art, the utility model has the beneficial effects that: The independent valve seats are arranged, namely two mutually independent valve seats are arranged at the top of the lead-acid storage battery, and each valve seat is respectively provided with an exhaust valve to form a double-exhaust-gas structure. The reasonable design of the positions of the two valve seats at the top of the battery ensures the uniformity of exhaust and avoids the mutual influence caused by the too close positions. The valve seat is made of high-strength corrosion-resistant engineering plastic, suc