Barrel washing machine having magnetic rheologic active vibration damper

A technology of active shock absorbers and drum washing machines, which can be applied to other washing machines, springs/shock absorbers, household appliances, etc., and can solve the problems of limited vibration damping effect and poor real-time performance

Inactive Publication Date: 2007-09-19
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of magnetorheological active shock absorbers can fundamentally solve the problem of poor real-time performance and limited vibration damping effect of the original passive shock absorbers on drum washing machines

Method used

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  • Barrel washing machine having magnetic rheologic active vibration damper
  • Barrel washing machine having magnetic rheologic active vibration damper
  • Barrel washing machine having magnetic rheologic active vibration damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 is a drum washing machine equipped with two magneto-rheological active shock absorbers. When the internal space of the drum washing machine is limited or the maximum load capacity of the washing machine is relatively small, two shock absorbers are installed under the washing drum, and the two shock absorbers are symmetrically distributed as shown in Fig. 1 .

Embodiment 2

[0028] Embodiment 2 is a drum washing machine equipped with three magneto-rheological active shock absorbers. It is generally applied to a drum washing machine with a medium maximum load capacity. Three shock absorbers are installed under the washing tub, and the three magnetorheological active shock absorbers intersect to form a triangular platform, that is, the axes of the three magnetorheological active shock absorbers coincide with the three edges of the triangular platform respectively.

Embodiment 3

[0029] Embodiment 3 is a drum washing machine equipped with four magneto-rheological active shock absorbers. It is generally applied to a drum washing machine with a relatively large maximum load capacity of the washing machine. Four shock absorbers are installed under the washing tub, wherein the four magneto-rheological active shock absorbers in (a) are placed on the left and right sides of the washing tub respectively, facing each other two by two, forming two waists of an isosceles trapezoid. The four magneto-rheological active shock absorbers in (b) are crossed, and two of them are opposite to each other, forming two legs of an isosceles trapezoid.

[0030] In Fig. 5, the electronic control unit 22 changes the current 23 in the electromagnetic coil according to the vibration signal parameter 24 transmitted by the sensor unit 25, and then controls the intensity of the electromagnetic field around the electromagnetic coil 21, and the magnetic fluid 26 of the active shock ab...

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PUM

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Abstract

The present invention discloses a cylinder washing machine having a magneto-rheological active damper and belongs to the technology field of household appliances. The objective of the present invention is to improve damping mechanisms of a cylinder washing machine and then to provide a cylinder washing machine having a magneto-rheological active damper. Said washing machine comprising a machine housing and a washing cylinder equipped with asuspension spring and a matching block thereon is characterized in that at least two magneto-rheological active dampers are mounted below the washing cylinder. The magneto-rheological active dampers are connected to an electronic control unit which is connected to a sensor unit to form a closed loop control return. The damping force is adjusted real time and exactly, on the basis of vibration instances acquired, with a reflection velocity of 10-20 ms. Said cylinder washing machine is capable of adjusting damping force of a damper in time according to its vibration instances, then to achieve the purpose of eliminating or reducing vibrations of a washing machine. Said damper can be applied in a variety of cylinder washing machines.

Description

technical field [0001] The invention discloses a drum washing machine with a magneto-rheological active shock absorber. It belongs to the technical field of household appliances. Background technique [0002] With the continuous improvement of people's requirements for environmental quality, the vibration and noise of household appliances have attracted more and more attention. For manufacturers of household appliances, vibration reduction has become a serious issue. As far as drum washing machine products are concerned, vibration has always been a major aspect that plagues its performance. The devices used to reduce vibration in washing machines are shock absorbers, springs and counterweights. Among them, the shock absorber is an important device applied to the drum washing machine. [0003] Traditional shock absorbers are mainly passive shock absorbers such as air shock absorbers and spring shock absorbers. Passive shock absorbers have poor real-time performance, cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F37/20F16F15/00
Inventor 赵向阳李莉朱旬
Owner HAIER GRP CORP
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