Title:
DETECTION METHOD AND APPARATUS FOR PHASE WIRE AND NEUTRAL WIRE REVERSE CONNECTION, STORAGE MEDIUM AND INVERTER AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/231755
Kind Code:
A1
Abstract:
A detection method and apparatus for a phase wire and neutral wire reverse connection, a storage medium and an inverter air conditioner. The detection method is used in a three-phase rectifier circuit of the inverter air conditioner. The three-phase rectifier circuit comprises a neutral wire (N), a DC bus (L4), three phase wires (L1, L2, L3), and a first relay (RY1), a second relay (RY2) and a third relay (RY3) separately located on each phase wire. The detection method comprises: when the first relay (RY1), the second relay (RY2) and the third relay (RY3) are all turned on, obtaining a first voltage value of the DC bus (L4) (S202); when any relay is turned off, obtaining a current voltage value of the DC bus (L4) (S204); and when the first voltage value is not equal to the current voltage value, determining that a phase wire and the neutral wire are reversed (S206).
Inventors:
HUANG JUNHAO (CN)
WANG HAOHAO (CN)
ZHANG SHIHONG (CN)
WANG HAOHAO (CN)
ZHANG SHIHONG (CN)
Application Number:
PCT/CN2023/094169
Publication Date:
December 07, 2023
Filing Date:
May 15, 2023
Export Citation:
Assignee:
HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
International Classes:
G01R31/55
Domestic Patent References:
| WO2013013415A1 | 2013-01-31 | |||
| WO2017107556A1 | 2017-06-29 |
Foreign References:
| CN114994572A | 2022-09-02 | |||
| CN106526361A | 2017-03-22 | |||
| CN112564045A | 2021-03-26 | |||
| CN112886537A | 2021-06-01 | |||
| CN107247242A | 2017-10-13 | |||
| CN108444070A | 2018-08-24 | |||
| CN209448425U | 2019-09-27 | |||
| CN102428619A | 2012-04-25 | |||
| CN108493918A | 2018-09-04 | |||
| US20210096191A1 | 2021-04-01 |
Attorney, Agent or Firm:
BEIJING LISENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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