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Roller type washing machine

A drum-type washing machine and drum technology are applied to other washing machines, control devices of washing machines, motor vehicles, etc., and can solve the problems of increasing damping force, increasing resistance, and difficulty in moving pistons.

Inactive Publication Date: 2012-10-24
TOSHIBA LIFESTYLE PROD & SERVICES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the resistance between the piston and the cylinder increases, making it relatively difficult for the piston to move, increasing the damping force

Method used

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  • Roller type washing machine
  • Roller type washing machine
  • Roller type washing machine

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0029] Below, refer to Figure 1 to Figure 9 The first embodiment will be described. figure 2 It is a schematic diagram showing the overall structure of a front-loading washing machine (hereinafter referred to as a washing machine). As shown in this figure, the housing 1 is a box-like shape forming the outer shell of the washing machine. In the central part of the front side (the right side of the figure), a laundry inlet and outlet 2 is formed, and a door for opening and closing the inlet and outlet 2 is provided. 3. Furthermore, an operation panel 4 is provided on the upper part of the front part of the casing 1, and a control device 5 for operation control is provided on the back side thereof.

[0030] A horizontal cylindrical water tank 6 is arranged inside the housing 1 , and the axis of the water tank 6 points in the front-rear direction. Water tank 6 is by a plurality of (for example left and right pair) suspension (in figure 2 Only one is shown in the figure, den...

no. 2 approach

[0135] Figure 10 ~ Figure 11 b represents the second embodiment, and the same parts as those described above are given the same symbols to omit the same description, and the different points will be described below.

[0136] Figure 10 The vibration sensors 20a and 20b indicate that the position of the laundry W in the drum 10 is offset at 0 degrees and the drum 10 rotates in the clockwise direction (refer to figure 1 , Figure 4 ) is equivalent to the output of two revolutions. That is, in Figure 10 The curve shown in P 100 is an exaggerated representation of the output of the vibration sensors 20a, 20b at a rotational speed (100 rpm) lower than the rotational speed of the drum 10 at the time of primary resonance, and it can be seen that the output curve P 100 with Figure 5 Change in the same cycle as the torque fluctuation explained in .

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PUM

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Abstract

Provided is a roller type washing machine, comprising a damper capable of further effectively suppressing vibration and noises. The roller type washing machine in an embodiment comprises: a casing; a water tank arranged inside the casing; a roller rotatably arranged inside the water tank; the damper arranged between the casing and the water tank and used for damping the vibration of the water tank; and a control unit used for performing variable control for a damping force of the damper. The control unit is configured to perform the control as follows, the control unit changes the damping force of the damper during the period that the roller rotates a circle, and periodically repeats the variable control according to the rotation of the roller.

Description

technical field [0001] This embodiment relates to a drum type washing machine. Background technique [0002] For example, in a front-loading washing machine, a plurality of suspensions arranged between the casing and the water tub elastically support the water tub disposed in the casing, thereby reducing vibration of the water tub caused by the rotation of the drum. [0003] As such a suspension, in recent years, it has been considered to use a damper with variable damping force, and the damper is filled with a magnetorheological fluid as a functional fluid (for example, refer to Patent Document 1). [0004] Specifically, for example, a rod is reciprocally provided in the cylinder, and a coil for generating a magnetic field is arranged on the piston at the tip of the rod. The magnetorheological fluid accommodated in the gap between the outer periphery of the piston and the inner periphery of the cylinder can flow. Then, when the water tank vibrates up and down, the piston ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F37/20D06F33/02A01B63/10B62D49/00F15B11/04
CPCD06F37/04D06F37/22D06F37/26D06F37/304D06F33/48D06F2103/24D06F2105/46
Inventor 金田至功
Owner TOSHIBA LIFESTYLE PROD & SERVICES CORP