Title:
POWER CONVERSION DEVICE AND PROTECTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/037370
Kind Code:
A1
Abstract:
The present application provides a power conversion device and a protection method therefor. The power conversion device comprises a terminal plate, an electrical energy conversion circuit, and a controller; a first terminal and a first temperature sampling circuit are arranged on the terminal plate, wherein the first terminal is connected to a direct-current power supply or the electrical energy conversion circuit by means of a protection switch. The first temperature sampling circuit is used for collecting a temperature parameter of the first terminal. The controller acquires the temperature parameter of the first terminal, and when the temperature parameter of the first terminal is greater than a temperature parameter threshold, controls the protection switch to be turned off. By using the present application, the temperature of a terminal to be subjected to temperature measurement can be acquired in time, such that the over-temperature protection of said terminal can be achieved in time when the temperature of said terminal is too high, thereby ensuring reliable operation of the terminal of the power conversion device.
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Inventors:
YU TING (CN)
ZHAN JINXIANG (CN)
LIN TIANSAN (CN)
ZHANG FANGPO (CN)
ZHAN JINXIANG (CN)
LIN TIANSAN (CN)
ZHANG FANGPO (CN)
Application Number:
PCT/CN2023/111471
Publication Date:
February 22, 2024
Filing Date:
August 07, 2023
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02H7/122; H02H5/04; H02M7/42
Foreign References:
| CN115411703A | 2022-11-29 | |||
| US20020038795A1 | 2002-04-04 | |||
| CN206865129U | 2018-01-09 | |||
| CN103384054A | 2013-11-06 | |||
| CN110601135A | 2019-12-20 | |||
| CN113936932A | 2022-01-14 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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