Washing machine and damping device thereof

Abstract

The invention provides a washing machine and a damping device thereof. The damping device of the washing machine comprises a first piston, a cylinder body assembly and a piston rod, wherein the cylinder body assembly is provided with a first piston cylinder, a buffer chamber and a communicating hole; the first piston is arranged in the first piston cylinder; the space in the first piston cylinderis divided into a first cavity and a second cavity by the first piston; the first cavity communicates with the buffer chamber via the communicating hole; a liquid medium is packaged into the first cavity, the buffer chamber and the communicating hole; and the piston rod is connected to the first piston. According to the damping device of the washing machine, an excellent damping effect can be generated, the size of a damping force can be adaptively adjusted according to moments with different vibration energy, coverage of a damping frequency band also can be wider and more comprehensive, and running stability and a mute effect of the whole machine can be greatly enhanced.

Description

technical field [0001] The invention relates to the field of washing machines, in particular to a damping device of a washing machine and a washing machine. Background technique [0002] In order to solve problems such as vibration and noise, the existing washing machine is equipped with a damping device inside the washing machine for shock absorption and buffering. Among them, the damping device of the existing washing machine mainly has two forms: air damping and frictional damping. It has been found in practice that these two structures are both There are certain limitations. Once the damper design is completed, its damping force becomes a fixed value, and it cannot be adjusted according to the motion and system characteristics of the whole machine, resulting in frequent vibration and noise problems of the washing machine. bottleneck problem. Contents of the invention [0003] In order to solve at least one of the above technical problems, an object of the present inve...

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Problems solved by technology

[0002] In order to solve problems such as vibration and noise, the existing washing machine is equipped with a damping device inside the washing machine for shock absorption and buffering. Among them, the damping device of the existing washing machine mainly has two forms: air damping and frictional damping. It has been found in practice that these two structures are both There are certain limitations. Once the damper design is completed, its damping force becomes a fixed value, and it cannot be adjusted according to the motion and system characteristics of the whole machine, resulting in frequent vibration and noise problems of the washing machine. bottleneck problem

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