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Vibration control device for washing machine

A vibration damping device and washing machine technology, which is applied to the control device of the washing machine, the washing device, other washing machines, etc., and can solve the problems of reducing the volume of the washing tank, poor space efficiency, and increasing the size of the washing machine shell, etc.

Inactive Publication Date: 2013-01-02
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the vibration damping device of the above-mentioned patent document, since the vibration insulating mechanism is arranged between the washing tank and the washing machine casing, and on the lower surface and the side of the washing tank, a space for arrangement is required.
Therefore, it is necessary to increase the size of the washing machine casing or reduce the volume of the washing tank, and there is a problem of poor space efficiency.
In addition, if the vibration insulation mechanism is arranged only on the side in order to secure space, there is a problem that the performance of the horizontal vibration insulation mechanism cannot be fully exerted because the washing tank vibrates in the vertical direction.

Method used

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  • Vibration control device for washing machine
  • Vibration control device for washing machine
  • Vibration control device for washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Below, refer to figure 1 Embodiment 1 of the present invention will be described through Fig. 4 .

[0022] figure 1 It is a schematic configuration diagram of a drum type washing machine 100 (hereinafter referred to as washing machine 100 ) viewed from the back. figure 2 It is a schematic configuration diagram of the washing machine 100 viewed from the side.

[0023] The washing machine case 31 forming the outer shell of the washing machine 100 has a laundry inlet and outlet opened in a circular shape on the front surface. The laundry inlet and outlet are opened and closed by a door. Inside the washing machine casing 31, a bottomed cylindrical washing tank 32 with a closed back is disposed. A stator of a permanent magnet motor 34 serving as a washing motor is fixed to a central portion of the back of the washing tank 32 by screwing. The washing tank 32 is gently supported by the washing machine case 31 by two lower support parts 35 arranged at the lower part of th...

Embodiment 2

[0039] refer to Figure 5 Example 2 of the present invention will be described. In addition, the description of the same parts as those in the first embodiment will be omitted, and only the different parts will be described.

[0040] The horizontal direction vibration suppressing part 102 of the present embodiment is composed of the first spherical coupling part 11 fixed on the washing tank 32 side, the third spherical coupling part 16 fixed on the washing machine casing 31 side, and the first spherical coupling part 11 and the first spherical coupling part. The linear motor 1 is formed between the third spherical coupling parts 16 . The third spherical coupling portion 16 is composed of an inner ball fixed to the washing machine casing 31 and an outer casing sliding on the outer peripheral portion of the inner ball. The lower part of the linear motor housing 4 is fixed to this outer housing.

[0041] The first spherical coupling portion 11 is a member that couples the wash...

Embodiment 3

[0047] refer to Image 6 Embodiment 3 of the present invention will be described. In addition, the description of the same parts as those in the first embodiment will be omitted, and only the different parts will be described.

[0048] exist Image 6 A block diagram of this embodiment is shown in . In addition, an algorithm of vibration damping control is shown in the vibration damping control device 40 . In addition, descriptions of the A / D converter 24, the low-pass filter 25, the high-pass filter 26, and the D / A converter 29 described in the first embodiment are omitted. In the washing tank 32 of this embodiment, a first acceleration sensor 41 for measuring the acceleration in the horizontal direction near the lower part of the washing tank 32 and a second acceleration sensor 42 for measuring the acceleration in the horizontal direction near the upper part of the washing tank 32 are provided. . The acceleration signal from the first acceleration sensor 41 and the accel...

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PUM

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Abstract

According to an embodiment, a vibration control device for a washing machine is composed of a drum to house laundry, a washing tank to house the drum which is suspended by a chassis of the washing machine, a driving motor to drive the drum, an acceleration detecting unit to detect an acceleration in the horizontal direction of the washing tank, a linear actuator fixed to the chassis of the washing machine to generate a driving force in the horizontal direction to the chassis of the washing machine, a force transmitting unit to connect a movable axis of the linear actuator with the washing tank, and a control unit to control the driving force of the linear actuator based on the acceleration detected by the acceleration detecting unit. The force transmitting unit transmits the driving force in the horizontal direction which is generated by the linear actuator to the washing tank, and absorbs mechanistically relative displacement in the back and forth direction and in the up and down direction.

Description

[0001] This application is based on and claims the priority of Japanese Patent Application No. 2010-051109 filed on March 8, 2010, the entire contents of which are incorporated herein. technical field [0002] The present invention relates to a vibration damping device for suppressing vibration generated in a washing machine. Background technique [0003] In general, the laundry of the washing machine is biased inside the washing tub and an unbalanced load acts on the washing tub. It is an important issue that the vibration of the washing machine due to the unbalanced load affects the operation of the washing machine. In particular, when the rotation speed of the drum in the dehydration operation is increased, when the resonance frequency of the support system of the washing machine passes through, the yaw of the washing tank tends to become large, and the washing tank contacts with the casing to cause an error, which becomes the cause of the stoppage of the dehydration oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F37/20
CPCD06F33/00D06F2105/00D06F33/48D06F2103/26F16F15/03D06F37/22D06F34/16
Inventor 平井正昭横山光之
Owner KK TOSHIBA