Exhaust safety valve for lead-acid storage battery and production process thereof

Abstract

The invention discloses an exhaust safety valve for a lead-acid storage battery. The exhaust safety valve comprises ultrasonic welding circular rings and pressure compensation films, wherein the ultrasonic welding circular rings are installed on the edges of safety valve ports on an upper cover of the lead-acid storage battery, and the pressure compensation films cover the safety valve ports and are connected with the ultrasonic welding circular rings through welding. The invention also discloses a production process of the exhaust safety valve for the lead-acid storage battery. The production process comprises the following steps in sequence: I. installing the ultrasonic welding circular rings; II. welding the pressure compensation films; III. cutting off the redundant pressure compensation films; IV. welding cover plates. The exhaust safety valve for the lead-acid storage battery replaces old rubber cap valves or columnar safety valves, furthest utilizes the effective space of the lead-acid storage battery and promotes the product performance. The production process of the exhaust safety valve for the lead-acid storage battery adopts the automatic ultrasonic welding technology, is efficient and energy-saving, and improves the production efficiency.

Description

technical field [0001] The invention belongs to the technical field of accumulators, in particular relates to a lead-acid accumulator exhaust safety valve, and also relates to a production process of the lead-acid accumulator exhaust safety valve. Background technique [0002] In the prior art, lead-acid batteries generally use rubber cap valves or columnar safety valves for dust-proof and exhaust, all of which need to be supported by a valve seat on the lead-acid battery, and the valve seat occupies a large space in the inner cavity of the lead-acid battery , such as the 6-DZM-12 battery, generally occupies a space of 8 to 12mm in height. For the lead-acid battery with low volume and energy, it has a great limit on the performance improvement of the battery, especially for the power type. Lead-acid batteries have a greater impact. Moreover, the old-fashioned rubber cap valve or cylindrical safety valve has poor exhaust pressure control accuracy, which is divided into valve...

AI Technical Summary

Problems solved by technology

This kind of safety valve, to a certain extent, the ribs can improve the strength of the cover piece, and the gas can be precipitated smoothly when the pressure is released. The reverse buckle connection effectively ensures safety, and the protection cover piece can rotate freely relative to the valve body, which is conducive to sealing. And prolong the battery life, but still can not solve the poor consistency of product performance, for the battery pack that requires multiple batteries to be used in series, the technical problem that leads to the failure of the battery pack

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