Title:
BATTERY MANAGEMENT DEVICE AND CHARGING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/125827
Kind Code:
A1
Abstract:
Disclosed are a battery management device and a charging apparatus. The battery management device comprises at least one battery pack management unit, and each battery pack corresponds to one battery pack management unit; the battery pack management unit comprises a common-mode suppression circuit, a first power supply module and a first control module which are electrically connected in sequence, and the common-mode suppression circuit is electrically connected to an external alternating-current power supply; the common-mode suppression circuit comprises a plurality of isolation transformers; the first power supply module is used for supplying power to the first control module; the common-mode suppression circuit is used for blocking a common-mode current formed in the corresponding circuit in the process of the first power supply module supplying power to the first control module. According to the present invention, the common-mode suppression circuit is additionally provided in the battery management device, for example, the isolation transformers are added to the inlet of the alternating-current power supply, such that in the process of the first power supply module supplying power to the first control module, a common-mode current formed in the corresponding circuit is blocked in time, and a good common-mode suppression effect is achieved.
Inventors:
LIU BING (CN)
ZHANG JIANPING (CN)
ZHANG JIANPING (CN)
Application Number:
PCT/CN2022/143474
Publication Date:
July 06, 2023
Filing Date:
December 29, 2022
Export Citation:
Assignee:
AULTON NEW ENERGY AUTOMOBILE TECH CO LTD (CN)
SHANGHAI DIANBA NEW ENERGY TECH CO LTD (CN)
SHANGHAI DIANBA NEW ENERGY TECH CO LTD (CN)
International Classes:
H02J3/38; H02J7/00
Foreign References:
| CN106936146A | 2017-07-07 | |||
| CN113629757A | 2021-11-09 | |||
| CN112039174A | 2020-12-04 | |||
| CN104816645A | 2015-08-05 | |||
| CN108909517A | 2018-11-30 | |||
| JP2018098566A | 2018-06-21 |
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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