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Patent Searching and Data


Title:
VOLTAGE-ADAPTIVE CHARGING CIRCUIT FOR LEAD ACID BATTERY, CHARGING METHOD, AND CHARGER
Document Type and Number:
WIPO Patent Application WO/2022/166257
Kind Code:
A1
Abstract:
A voltage-adaptive charging circuit for a lead acid battery, a charging method, and a charger, relating to the technical field of lead acid battery charging. The charging circuit comprises a control board, an amplifier circuit connected to the control board, a conduction control circuit, and a charging voltage generating circuit; the control board is provided with an output end for a pulse control signal; the pulse control signal is connected, by means of the amplifier circuit and the conduction control circuit which are sequentially connected, to a negative electrode of a lead acid battery to be charged; the conduction control circuit is used for intermittently outputting the amplified pulse control signal; the pulse control signal is used for repairing a lead acid battery to be charged to which vulcanization occurs; the control board controls, according to a feedback voltage, the charging voltage generating circuit to adjust the output charging voltage. Charging is first performed by means of a pulse current to recover the activity and normal battery voltage of the lead acid battery and to repair the partially vulcanized lead acid battery; the battery voltage can be accurately detected so as to provide a more matched charging voltage to complete charging; thus, the service life of the lead acid battery is prolonged.

Inventors:
GUO WENSHE (CN)
GUO MINGZHONG (CN)
Application Number:
PCT/CN2021/124541
Publication Date:
August 11, 2022
Filing Date:
October 19, 2021
Export Citation:
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Assignee:
ZHEJIANG ZHONGJIAN SOLDERING EQUIPMENT CO LTD (CN)
International Classes:
H02J7/00; H01M10/44
Foreign References:
CN112821511A2021-05-18
CN214255787U2021-09-21
CN209119263U2019-07-16
CN104682529A2015-06-03
CN103700901A2014-04-02
CN211456747U2020-09-08
US20090289602A12009-11-26
Attorney, Agent or Firm:
TAIZHOU HANGXIN PATENT AGENCY OFFICE (GENERAL PARTNERSHIP) (CN)
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