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Washing machine

A washing machine and foam technology, applied to other washing machines, washing machine control devices, washing devices, etc., can solve problems such as hindering the rotation of the dehydration tank

Inactive Publication Date: 2016-10-26
TOSHIBA LIFESTYLE PROD & SERVICES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the rotation of the spin-drying tub is hindered by the unbalanced clothes. Therefore, in the conventional structure, when the unbalanced clothes occur, it may be falsely detected as foaming.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0039] Below, refer to Figure 1 to Figure 11 , and the first embodiment will be described.

[0040] First, refer to figure 1 as well as figure 2 , the mechanical structure of the washing machine according to this embodiment will be described. Such as figure 1 As shown, the outer box 100 forms the outer surface of the washing machine in this embodiment, and is composed of a top cover 101 , a side wall 111 and a bottom plate 110 .

[0041] The top cover 101 forms the uppermost surface of the outer box 100 , and an operation panel 105 , an outer cover 103 , and a rear cover 104 are provided on the upper end of the rectangular frame body 102 . Although not shown, from the front side of the outer case 100 ( figure 1 Middle is the front right side, figure 2 Viewed from the left side in the center), the frame body 102 is provided with a recess for setting the operation panel 105 on the side close to the observer, and a clothing inlet is provided on the side away from the obs...

no. 2 approach

[0069] Regarding the second embodiment, mainly refer to Figure 12 as well as Figure 13, and will be described focusing on parts different from the first embodiment. When the resistance to the rotation of the rotary tank 200 increases due to the imbalance of the clothes thrown in or the generation of foam, the number of revolutions of the motor 203 will not increase with the command slope, so the actual number of revolutions of the motor 203 will be less than the command revolution. number (the number of revolutions when the number of revolutions of the motor 203 rises with the command slope). In this embodiment, the difference between the actual number of rotations of the motor 203 and the commanded number of rotations is evaluated using a threshold value corresponding to the degree of unbalance determined by the unbalance determination S4, thereby canceling the difference caused by the unbalance. Influence, so as to detect the generation of foam.

[0070] according to ...

no. 3 approach

[0076] Regarding the third embodiment, mainly refer to Figure 14 , and will be described focusing on parts different from the first embodiment. When the resistance to the rotation of the rotary tank 200 increases due to the imbalance of the loaded laundry or the generation of foam, the rotation speed of the motor 203 is difficult to increase, so the load on the motor 203 increases and the current value also increases. . Utilizing this principle, the current sensor 303 functions as a rotation resistance detection unit for detecting resistance to the rotation of the rotation tank 200 .

[0077] In this embodiment, the current value of the motor 203 is evaluated using a threshold value corresponding to the degree of imbalance determined by the imbalance determination S4, thereby canceling the influence caused by the imbalance, thereby controlling the generation of foam. detection.

[0078] according to Figure 14 The flow chart of is to execute the bubble generation determin...

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PUM

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Abstract

The present invention provides a washing machine, regardless of the presence of the laundry imbalance., the washing machine can be highly accurately detects the generation of the foam. Embodiments of the washing machine is provided with: an outer box, forming the outer surface of the body; a water tank, the resiliently held in the outer case; a rotation groove rotatably provided in the water tank; a motor, means for rotating and driving the rotary groove; a vibration detecting unit for detecting a magnitude of vibration of the water tank; the rotational resistance detection unit for detecting rotation of the rotary tank caused by resistance; and a control unit, the dehydrating stroke., based on the detection performed by the vibration detection unit and by the rotational resistance detection unit to perform detection., a foam generating decision.

Description

technical field [0001] Embodiments of the present invention relate to washing machines. Background technique [0002] When detergent foam is generated during the dehydration process, detergent remains. Therefore, it is desirable to detect the generation of foam and perform appropriate actions such as foam discharge operations. In addition, when foam is generated during the dehydration process, the foam will hinder the rotation of the dehydration tank, making it difficult to increase the number of revolutions of the motor, so the motor current will increase. Conventionally, there is known a washing machine that detects the generation of foam based on the rotation speed of the motor and / or the motor current using this principle. [0003] However, since the rotation of the dehydration tub is hindered by the unbalance of the clothes, in the conventional structure, when the clothes are unbalanced, it may be erroneously detected as the generation of foam. [0004] prior art lite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02D06F37/20
CPCD06F33/00D06F37/203D06F39/06D06F2202/12
Inventor 小仓范史久野功二
Owner TOSHIBA LIFESTYLE PROD & SERVICES CORP