Title:
CURRENT DETECTION DEVICE, ELECTRIC ENERGY DETECTION DEVICE, AND CONTROL METHOD FOR CURRENT DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/222119
Kind Code:
A1
Abstract:
A current detection device, comprising a first mutual inductance unit (301), a power supply unit (302), a current detection unit (303), and a processing unit (304). The first mutual inductance unit (301) comprises a hollow part, a tested cable passes through the hollow part, and the first mutual inductance unit (301) is configured to generate a first induced electric parameter and a second induced electric parameter according to the actual current of the tested cable. The power supply unit (302) is connected to the first mutual inductance unit (301) and is configured to convert the voltage in the first induced electric parameter to the first voltage. The current detection unit (303) is connected to the first mutual inductance unit (301), and the current in the second induced electric parameter is converted to the second voltage. The processing unit (304) is connected to the power supply unit (302) and the current detection unit (303), and calculates a current value on the tested cable. The current detection device can prevent the detection device from installing a position-limited electrical connection point, can improve the safety level of the detection device when detecting the current of the tested cable in real time, reduce the cost, and the detection device does not need an additional power supply, thereby eliminating the limitation of the installation of the power supply to the detection device. An electric energy detection device and a control method for the current detection device.
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Inventors:
WANG SHUAI (CN)
WU JIAN (CN)
WU JIAN (CN)
Application Number:
PCT/CN2021/089124
Publication Date:
October 27, 2022
Filing Date:
April 23, 2021
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
G01R19/00; G01R15/16; G01R15/18
Domestic Patent References:
| WO2014027422A1 | 2014-02-20 | |||
| WO2021022194A1 | 2021-02-04 |
Foreign References:
| CN107064597A | 2017-08-18 | |||
| JP2015040799A | 2015-03-02 | |||
| JP2020016515A | 2020-01-30 | |||
| JP2018132346A | 2018-08-23 | |||
| US20160146856A1 | 2016-05-26 | |||
| CN105445531A | 2016-03-30 | |||
| CN102472777A | 2012-05-23 | |||
| CN105527515A | 2016-04-27 |
Other References:
See also references of EP 4317994A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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