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Washing machine

A technology for washing machines and washing tanks, applied in the field of washing machines, which can solve problems such as difficulty in performing stable movements and inability to reduce the vibration of the washing tank, and achieve the effect of reducing vibration

Inactive Publication Date: 2012-02-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the rotation of the washing tank, it is difficult to perform stable operation due to non-linear factors such as friction.
In other words, there is a problem that the vibration of the washing tank during dehydration cannot be reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] figure 1 It is a block diagram of the washing machine according to Embodiment 1 of the present invention. exist figure 1 Among them, the casing cover 17 of the washing machine has an inlet 18 for taking out / putting in laundry and anti-vibration rubber 19 as legs when the washing machine is installed on the floor. In the inside of the housing cover 17, as the mechanism part 10 of the washing machine, it is provided with: a support cylinder 13 injected with water; a washing tank 11, which is arranged on the inside of the support cylinder 13, and accommodates laundry; and a motor 12, which is provided On the outside of the support drum 13, the washing tub 11 is rotated while controlling the speed of the washing tub 11. The motor 12 is constituted by a brushless motor. The surroundings of the inlet 18 of the case cover 17 and the opening of the support cylinder 13 are connected by a seal 14 so that there is no gap therebetween.

[0025] The support cylinder 13 supports ...

Embodiment approach 2

[0045] image 3 It is a flowchart of the spin-drying process of the front-loading-type washing machine in Embodiment 2 of this invention. Additionally, for figure 2 The same steps as those in Embodiment 1 shown will be described using the same reference numerals. The difference from Embodiment 1 is that, as image 3 As shown, in the resonance detection in step S177, when resonance is detected (YES in step S177), the process returns to step S102.

[0046] Step S101 to step S106 in the dehydration step of the present embodiment are the same steps as those in the first embodiment. Here, when the rotational speed of the motor 12 increases from 120 r / min (step S106 ), if resonance is detected (YES in step S177 ), the process returns to step S102 . As a result, the rotational speed of the motor 12 is reduced to 120 r / min, thereby returning to the initial state of dehydration. After that, the fluid balancer 20 is injected again (step S105). In addition, when the rotation speed...

Embodiment approach 3

[0049] Figure 4 It is a flowchart of the spin-drying process of the front-loading-type washing machine in Embodiment 3 of this invention. Additionally, for figure 2 The same steps as those in Embodiment 1 shown will be described using the same reference numerals. First of all, the difference from Embodiment 1 is that, if Figure 4 As shown, even if the rotation speed is rising (step S106), when the vibration is detected by the vibration detection part 41 (step S171), and the amount of deflection increases ("Yes" in step S172), switch to the following control (step S173 ): Stop increasing the speed and make the speed fixed. In addition, the difference from Embodiment 1 is that when the amount of deflection increases when the motor 12 is rotated at 800 r / min (step S111) (YES in step S182), it switches to the following: Control (step S183): stop increasing the rotation speed, and make the rotation speed constant.

[0050] Step S101 to step S106 in the dehydration step of t...

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Abstract

A washing tub (11) is provided with a fluid balancer (20) having containing chambers (22) for containing fluid poured therein from the outside. A control section (30) controls the pouring of the fluid into the containing chambers (22) according to the output of a vibration detection section (41) for detecting the vibration of a receiving tube (13) and determines, according to the rotational frequency of a motor (12) and to the output of the vibration detection section (41), the rotational frequency of the motor (12) when the fluid is poured into the containing chambers (22). Thus, the fluid is poured into the containing chambers (22) according to the vibration and rotational frequency to reduce vibration caused by the eccentric distribution of laundry.

Description

technical field [0001] The invention relates to a washing machine for washing, rinsing, dehydration and drying. Background technique [0002] In general, washing machines are broadly classified into a pulsator type washing machine which washes laundry (such as clothes) by returning water, and a drum type washing machine which washes laundry by falling of the laundry (that is, beat washing). The pulsator washing machine loads or takes out laundry from the upper side of the washing machine. Therefore, the orientation of the sink is longitudinal. Therefore, the pulsator washing machine is called a vertical washing machine. On the other hand, the orientation of the washing tub of the front-loading type washing machine is horizontal. Therefore, the drum washing machine is called a horizontal washing machine. Also consider that the clothes dryer is a horizontal type. [0003] The drum-type washing machine has a rotary tub that doubles as a washing tub and a dehydration tub (h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02D06F37/04D06F37/22D06F33/48
CPCD06F2202/065D06F37/245D06F37/225D06F33/48D06F2103/24
Inventor 高祖洋大山真
Owner PANASONIC CORP
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