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front load washing machine

A drum-type washing machine, drum technology, applied to other washing machines, washing machine control devices, washing devices, etc., can solve the problems of fast ball movement, time-consuming drum rotation, etc., to achieve the effect of suppressing vibration

Active Publication Date: 2019-08-02
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the ball cannot move as fast
Therefore, there is a problem that in order to control the ball and the unbalanced body to be in opposing positions, the rotation speed of the drum has to be gradually increased, and it takes time to increase the rotation of the drum in the dehydration process.

Method used

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  • front load washing machine
  • front load washing machine
  • front load washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0045] figure 1 It is a side cross-sectional view showing the inside of the front-loading-type washing machine in Embodiment 1 of the present invention. A bottomed cylindrical water tank 2 is accommodated inside the main body 1 . The water tank 2 is elastically supported by the spring 24 and the shock absorber 19 . A bottomed cylindrical drum 3 is accommodated inside the water tank 2 . The opening part 2a of the water tank 2 and the opening part 3b of the drum 3 are provided in the front side of the main body 1. As shown in FIG. Moreover, the door 21 which closes the opening part 2a of the water tank 2 freely is provided in the front side of the main body 1. As shown in FIG. Drum 3 is arranged so that rotation shaft 3 a of support drum 3 is substantially horizontal (including the horizontal direction). In addition, the present invention is not limited to this structure, for example, in consideration of the ease of taking out the laundry 18 such as clothes and the water-sa...

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PUM

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Abstract

The drum-type washing machine according to the present invention includes: a drum rotatably supported by a horizontal or inclined rotating shaft; a motor for rotationally driving the drum; a water tank for accommodating the drum; A moving body including a rolling body and a low-viscosity fluid is accommodated in an annular container of the balancer, which is arranged on the drum; and a control device. The control device has a position detection unit that detects the relative position between the position of the eccentric load of the laundry in the drum and the rolling elements. When the rotation of the drum in the dehydration process is started, when the relative position is determined to be in phase by the detection of the position detector when the drum rotates at a rotation speed lower than the resonance rotation speed, the control device changes the rotation speed of the drum from the ratio The rotation speed at which the resonance rotation speed is low increases to a rotation speed exceeding the resonance rotation speed.

Description

technical field [0001] The present invention relates to a drum type washing machine including a drum having a horizontal or inclined rotating shaft, and washing, rinsing and dehydration of laundry in the drum. Background technique [0002] In general, in a drum-type washing machine having a horizontal or inclined rotation shaft, the laundry may be in a non-uniform state, that is, an unbalanced state in the drum during the spin-drying process. When the spin-drying process is performed in an unbalanced state, a biased force may be applied to the rotating shaft of the drum to cause vibration. The amplitude of the vibration increases in proportion to the square of the rotational speed of the drum. When the drum vibrates, the main body of the washing machine moves, and the noise is loud, so there may be problems such as failure to operate if the rotation speed exceeds the specified speed. [0003] In order to reduce the vibration caused by the unbalance of the laundry, in the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F33/02D06F37/04D06F33/48
CPCD06F37/04D06F37/225D06F2103/24D06F33/48D06F2105/48D06F2103/26
Inventor 藤井友弘细川明宏松本俊成萩原久中尾浩
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD