Clothes treatment equipment and rotating speed estimating method thereof
A technology of clothes processing equipment and speed, which is applied in the direction of household dryers, washing machine control devices, washing devices, etc., and can solve the problems such as the difficulty of motor transformation
Pending Publication Date: 2018-12-07
QINGDAO HAIER WASHING MASCH CO LTD
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Problems solved by technology
[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that a magnet and a Hall element need to be added to the motor in order to detect the rotational speed of the washing machine with the aid of the Hall element, and the motor is difficult to transform, on the one hand, the present invention provides a clothing A method for estimating a rotation speed of a processing device, the laundry processing device includes an asynchronous motor, the method includes the following steps: powering off the asynchronous motor after a washing program of the laundry processing device is started; obtaining the The induction signal generated after the asynchronous motor is powered off; according to the induction signal, the rotation speed range of the laundry processing equipment is determined
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[0023] Those skilled in the art should understand that the embodiments in this section are only used to explain the technical principle of the present invention, and are not used to limit the protection scope of the present invention. For example, although the present invention mainly uses the induced voltage as the induction signal generated after the asynchronous motor is powered off to introduce and explain the speed estimation method, those skilled in the art can make adjustments as needed to adapt to specific applications , such as the induction signal in the speed estimation method may also be an induction current or the like. And although this embodiment is mainly used to analyze the rotation speed range of the dehydration stage, of course, this solution can also be used to analyze other stages of the washing program, such as the washing stage, rinsing stage and so on. Obviously, the adjusted technical solution will still fall into the protection scope of the present in...
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The invention belongs to the technical field of clothes treatment equipment, and particularly provides clothes treatment equipment and a rotating speed estimating method thereof. The aim is to solve the problem that if the rotating speed of a washing machine is detected with the help of a Hall element, it is needed to additionally arrange a magnet and the Hall element on a motor, so that the transforming difficulty of the motor is high. The clothes treatment equipment comprises an asynchronous motor. The rotating speed estimating method includes the following steps that after a washing programof the clothes treatment equipment starts to be executed, the asynchronous motor is powered off; a sensing signal generated after the asynchronous motor is powered off is obtained; according to the sensing signal, the range of rotating speed of the clothes treatment equipment is determined. Through the method, the rotating speed of the clothes treatment equipment is estimated, it is unnecessary to arrange the Hall element on the asynchronous motor, it is only needed to connect a sensing signal collecting device to a power line of the asynchronous motor, and the range of the rotating speed ofthe clothes treatment equipment is determined by obtaining the sensing signal generated after the asynchronous motor is powered off.
Description
technical field [0001] The invention belongs to the technical field of clothing processing equipment, and specifically provides a clothing processing equipment and a method for estimating a rotational speed thereof. Background technique [0002] During the working process of the washing machine, it is often necessary to detect its rotational speed in order to understand its working state. The rotation speed of the washing machine is generally obtained by detecting the rotation speed of the motor inside the washing machine. The detection of the motor speed is usually detected by the Hall element, that is, a magnet is installed on the rotating part of the motor, and a Hall element is arranged on the outer edge of the magnet's motion track. The magnetic field generated by the magnet rotates with the rotation of the rotating part of the motor. The magnetic induction line is periodically induced by the Seoul element to generate a pulse voltage, and the pulse voltage is counted w...
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IPC IPC(8): D06F33/02D06F58/28
CPCD06F2202/065D06F58/30D06F33/00
Inventor 梁青高秋英张先旦徐雯婷范玉彬才智
Owner QINGDAO HAIER WASHING MASCH CO LTD