洗衣机的断电处理方法和洗衣机
By detecting the current crossing zero point and controlling the motor to stop running through the power board, the problem of unstable gear meshing during short-term power outages in the washing machine is solved, achieving stable motor operation, avoiding noise and breakage, and extending the service life of the washing machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QINGDAO HAIER WASHING ELECTRIC APPLIANCES CO LTD
- Filing Date
- 2021-07-27
- Publication Date
- 2026-07-17
AI Technical Summary
When the washing machine experiences a brief power outage, the simultaneous operation of the clutch and motor can cause unstable gear meshing, resulting in gear noise or gear breakage.
The power board determines whether the external power supply is interrupted based on the current zero-crossing point detection, and sends power failure signals and fault signals to the driver board and the host computer. The driver board controls the motor to stop running according to the signals, and the host computer sends a stop running command according to the fault signal, ensuring that the motor can start as needed when the power is interrupted and after the power is restored.
This avoids unstable gear meshing caused by the simultaneous operation of the clutch and motor, prevents gear noise or gear breakage, and extends the service life of the washing machine.
Smart Images
Figure CN113652839B_ABST