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Linear compressor

A linear compressor and linear motor technology, applied in electromechanical devices, mechanical equipment, engine parameters, etc., can solve the problems of low efficiency and compression force of linear compressors, failure of piston 6 to reach TDC, reduction of stroke S2 ​​of piston 6, etc.

Inactive Publication Date: 2009-10-14
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the state in which the piston 6 is elastically supported in the moving direction by the elastic force of the mechanical spring and the gas spring, the stroke S2 ​​of the piston 6 decreases
Correspondingly, the piston 6 cannot reach TDC, which causes the linear compressor to have low efficiency and compression force

Method used

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Embodiment Construction

[0053] A linear compressor according to a preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0054] like image 3 As shown, in this linear compressor, the inlet pipe 2a and the outlet pipe 2b through which the refrigerant is sucked and discharged are installed at one side of the closed container 2, the cylinder 4 is fixed to the closed container 2, and the piston 6 is installed in the cylinder 4 so as to linearly reciprocate to compress the refrigerant sucked into the compression space P in the cylinder 4, and various springs are installed so as to be elastically supported in the moving direction of the piston 6. Here, the piston 6 is connected to a linear motor 10 for generating a linear reciprocating driving force. like Figure 4A and 4B As shown, even though the natural frequency f of the piston 6 n is varied by the load, the linear motor 10 controls its operating frequency f c and thus with the ...

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Abstract

The invention relates to a linear compressor, wherein a piston (6) is driven by a linear motor (10) and linearly reciprocates in a cylinder (4) to suck, compress and discharge refrigerant. Even if the load is changed, by estimating the natural frequency of the piston (6) and synchronizing the operating frequency of the linear motor (10) with the natural frequency of the piston (6), the linear compressor performs operation in a resonance state and by changing the piston (6) ) stroke (5) to vary the compression capacity to efficiently handle the load.

Description

technical field [0001] The present invention relates to a linear compressor capable of quickly overcoming the load and improving compression efficiency by synchronizing the operating frequency of the linear motor with the natural frequency of the movable part changed by the load and changing the stroke of the movable part according to the load. Background technique [0002] In general, compressors have been widely used in home appliances such as refrigerators and air conditioners or in the entire industrial field, and a compressor is a type of equipment used to compress air, refrigerant or other various components by receiving power from a power unit system such as a motor or a turbine. A mechanical device that increases pressure by manipulating a gas. [0003] Compressors are roughly classified into reciprocating compressors, which have a compression space through which operating gas is sucked or discharged between a piston and a cylinder so that the piston can reciprocate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B35/04H02K33/02
CPCH02K33/16F04B35/045F04B2201/0206F04B2203/0404
Inventor 崔峰峻金贤辛钟玟张昌龙朴信炫全永焕卢铁基
Owner LG ELECTRONICS INC
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