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Dehydration rotary speed controlling method for washing machine

A speed control and washing machine technology, which is applied to the control device of washing machine, washing device, textile and paper making, etc., can solve the problems that the unbalanced phenomenon of rotation cannot be detected, and the maximum speed cannot be determined, so as to improve the dehydration efficiency, Good dehydration effect

Active Publication Date: 2009-09-23
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For speed control, this detection method can only provide the switching value of whether a barrel collision occurs, and cannot detect the unbalanced phenomenon of rotation
By the time barrel bumping occurs, the spin rate will already be too high, so this method cannot be used to determine a suitable maximum speed

Method used

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  • Dehydration rotary speed controlling method for washing machine
  • Dehydration rotary speed controlling method for washing machine
  • Dehydration rotary speed controlling method for washing machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] Please see figure 1 , which is a circuit for detecting the occurrence of the barrel collision phenomenon in the prior art. In the figure, one end of the vibration switch S10 is connected to the power supply Vcc, and the other end is connected to the input port A of the single-chip microcomputer through a resistor R10. The function of the switch R10 is to protect the input port of the single chip microcomputer. The C10 connected in parallel with the vibration switch S10 is used to filter the high-frequency interference on both sides of the vibration switch S10, and the capacitor C11 is connected between the input port A of the single-chip microcomputer and the power ground, and plays the role of filtering. When the barrel collision occurs, the bottom of the outer barrel collides with the box, and the upper end of the outer barrel touches the vibration switch S10 and is disconnected. The single-chip microcomputer detects that S10 is disconnected through the input port A,...

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Abstract

The invention discloses a method for controlling the dehydration speed of a washing machine. After the dehydration starts, the following steps are performed: 1) detecting the distance information between the outer tub of the washing machine and the box body; offset reference value; 3) judging whether the distance between the outer barrel and the box is within the range of the current offset reference value, if the distance between the outer barrel and the box body is within the range of the current offset reference value within a certain period of time, then further judge whether there is a record of increasing the speed from the speed gear in a certain period of time, if yes, continue to dehydrate at the speed of this gear, if not, then enter step 4); If it is within the range of the current offset reference value, enter step 5); 4) increase the rotation speed; 5) reduce the rotation speed; the certain time is a predetermined time. The invention can improve dehydration efficiency and realize better dehydration effect.

Description

technical field [0001] The invention relates to a washing machine, in particular to a method for controlling the spin speed of the washing machine. Background technique [0002] When the washing machine is dehydrating, the faster the rotation speed of the inner tub is, the faster the dehydration speed is, the more thorough the dehydration degree is, and the higher the efficiency is. In the past, the washing machine did not have the function of speed regulation, so it could not control the dehydration speed, and could only dehydrate at a constant speed; now, many washing machines start to use frequency conversion speed regulation and other technologies to control the dehydration speed, and dehydrate at the highest possible speed to improve the dehydration performance. efficiency. [0003] However, when the washing machine is dehydrating, if the clothes in the bucket are placed unbalanced, the inner bucket will not be able to rotate normally, and in severe cases, the outer bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F33/02
Inventor 姜德志黄静莉李莉矫永英王海军申丽双
Owner HAIER GRP CORP
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