Control method for dewatering of drum washing machine
A technology of drum washing machines and drum washing machines, which is applied to the control devices of washing machines, washing devices, textiles and papermaking, etc., which can solve the problems of not being able to detect the increase of eccentricity in the resonance domain, and achieve the effect of improving stability
Inactive Publication Date: 2009-07-29
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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[0008] That is, the conventional dehydration control method detects the eccentricity at the start of dehydration, and if the eccentricity is within the normal range, the rotation speed is increased to perform dehydration, but the increase in eccentricity in the resonance domain cannot be detected.
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[0018] Below, refer to image 3 , the embodiment of the eccentricity detection method and the dehydration control method of the present invention will be described in detail.
[0019] image 3 It is a schematic diagram of the dehydration speed relationship with time in the washing machine of the present invention. The control method of the drum washing machine involved in the present invention detects the eccentricity when the dehydration rotation speed is lower than the resonance domain rotation speed, and controls the dehydration speed according to the eccentricity. On the basis of the above control method, the control method of the present invention re-detects the eccentricity when the dehydration rotation speed reaches the resonance domain speed, and decides whether to perform dehydration operation according to the detection result.
[0020] That is, the detection result of the eccentricity in the resonance area, when the eccentricity is too large, the dehydration operat...
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The invention discloses a control method of a drum washing machine. The invention detects the eccentricity during dehydration again in the resonance domain, and controls the drum washing machine according to the detection result. The control method of the drum washing machine involved in the invention has the first eccentricity In the detection stage, the eccentricity detected in the first eccentricity detection stage is the eccentricity when the rotational speed is lower than the rotational speed in the resonance domain. When the rotational speed is within the range of the resonance domain during dehydration, re-measure the eccentricity and decide whether to perform dehydration according to the measurement results Operation, there is at least one resonance point in the resonance domain before the official dehydration, and it also includes the time period before the first eccentricity detection that rotates at the resonance domain speed and performs dehydration. The rotational speed during eccentricity detection is high.
Description
technical field [0001] The invention relates to a drum type washing machine. In the present invention, the eccentricity during dehydration is detected again in the resonance domain, and the dehydration speed is controlled according to the detection result, so as to improve the stability of the system. Background technique [0002] figure 1 Schematic diagram of the structure of a drum washing machine. The drum washing machine is a home appliance product that uses the friction between the drum and the laundry to perform washing when the washing water and laundry are put into the drum, and the power of the motor is used to rotate the drum. When washing with a drum washing machine, the laundry will hardly be damaged, the laundry will not be entangled with each other, and the effect of rubbing and patting can also be obtained. [0003] Such as figure 2 As shown, when the traditional drum washing machine performs dehydration, the rotation speed of the drum is increased to a t...
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IPC IPC(8): D06F33/02
Inventor 李八镇
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD