Title:
ARC-EXTINGUISHING CIRCUIT AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/057551
Kind Code:
A1
Abstract:
An arc-extinguishing circuit and apparatus, and in particular, an arc-extinguishing circuit and apparatus suitable for performing arc extinguishing on a mechanical switch. The mechanical switch (K) on which arc extinguishing is required to be performed and a load (RL) constitute a first series circuit in a series manner, and the first series circuit comprises a first switch (S1), a first charging unit (U1), and a first capacitor (C1); a first power source charges the first capacitor (C1) by means of the first charging unit (U1); during a breaking process of the mechanical switch (K), a second power source supplies power to the load (RL) by means of the first switch (S1) and the first capacitor (C1); the first charging unit (U1) is a first element or a second switch, or is constituted by the first element and the second switch in the series manner. The arc-extinguishing circuit and apparatus has the advantages of high capacity utilization of the capacitor and a simple circuit.
Inventors:
GUO QIAOSHI (CN)
Application Number:
PCT/CN2019/106451
Publication Date:
March 26, 2020
Filing Date:
September 18, 2019
Export Citation:
Assignee:
GUO QIAOSHI (CN)
International Classes:
H01H9/30
Domestic Patent References:
| WO2017125056A1 | 2017-07-27 |
Foreign References:
| CN106783297A | 2017-05-31 | |||
| CN105185623A | 2015-12-23 | |||
| CN105610301A | 2016-05-25 | |||
| CN103325591A | 2013-09-25 | |||
| US20030086231A1 | 2003-05-08 |
Attorney, Agent or Firm:
GUANGZHOU HAIXIN UNION PATENT LAW OFFICE (CN)
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