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Piston positioning device for linear compressors

A technology of linear compressor and positioning device, which is applied in mechanical equipment, machine/engine, liquid variable capacity machinery, etc. The effect of reducing wear, avoiding cylinder sticking, improving efficiency and reliability

Active Publication Date: 2017-06-20
QINGDAO HAIER SMART TECH R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the piston and the cylinder are not in the same axis, it will cause the cylinder to be stuck or the cylinder piston will be worn. When debris enters the gap between the piston and the cylinder, it will cause the abrasion of the piston and cylinder, which will cause a serious decline in the performance of the linear compressor or even scrap it.

Method used

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  • Piston positioning device for linear compressors
  • Piston positioning device for linear compressors
  • Piston positioning device for linear compressors

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0022] The structure of the existing linear compressor is as follows: figure 1 As shown, it can be seen from the figure that the linear compressor has an axisymmetric structure, and the linear compressor includes a linear motor, a mover component 6, and a piston 7, and compresses refrigerant in the space of the cylinder 8. The linear motor is composed of an outer stator 1, an inner stator 4, a coil 3 and an annular permanent magnet ring 2. Both the inner stator 4 and the outer stator 1 are formed by stacking a plurality of silicon steel sheets.

[0023] The inner stator 4 and the outer stator 1 of the motor are fixed, and the inner stator 4 is wound with a ring-shaped excitation c...

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Abstract

The invention provides a piston positioning device of a linear compressor. The piston includes a piston head and a hollow piston rod, and the piston head and the piston rod are flexibly connected through an elastic component. The piston of the linear compressor of the present invention adopts a movable connection method, which reduces the wear of the cylinder piston, avoids the occurrence of the linear compressor cylinder being stuck, and overcomes the problems such as the cylinder being stuck due to low coaxiality and the entry of sundries. Defects such as wear and tear improve the efficiency and reliability of the linear compressor.

Description

technical field [0001] The invention relates to the field of linear compressors, in particular to a piston positioning device of a linear compressor. Background technique [0002] The linear compressor sucks the refrigerant gas into the cylinder, and uses the linear driving force of the linear motor to make the piston reciprocate linearly in the cylinder to compress the fluid, and then discharge the compressed fluid. Since the linear compressor is ultimately compressed by the piston, the material used for the piston requires high hardness, high wear resistance, high temperature resistance, high temperature abrasion resistance, and stable thermal expansion coefficient. [0003] However, when the piston and the cylinder are not in the same axis, the cylinder will be stuck or the cylinder piston will be worn. When debris enters the gap between the piston and the cylinder, it will cause the abrasion of the piston and cylinder, which will cause a serious decline in the performanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00
Inventor 赵志强李衡国闫赛娜宋斌许升王晔
Owner QINGDAO HAIER SMART TECH R & D CO LTD