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Control driving device and method for reciprocating compressor using linear motor refrigerator

A technology of linear motors and refrigerators, applied in household refrigerators, irreversible cycle compressors, compressors, etc., can solve the problems of reducing the efficiency of reciprocating compressors and increasing harmonic losses

Inactive Publication Date: 2006-07-19
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0043] As mentioned above, the reciprocating compressors involved in the prior art prolong the off time of the triac to reduce the voltage applied to the motor, thereby increasing the harmonic loss and reducing the reciprocating compressor s efficiency

Method used

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  • Control driving device and method for reciprocating compressor using linear motor refrigerator
  • Control driving device and method for reciprocating compressor using linear motor refrigerator
  • Control driving device and method for reciprocating compressor using linear motor refrigerator

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Embodiment Construction

[0060] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0061] A control driving apparatus for a reciprocating compressor of a refrigerator according to the present invention will now be described.

[0062] Figure 4 It is a block diagram showing the configuration of a control and drive device for a reciprocating compressor of a refrigerator according to an embodiment of the present invention.

[0063] like Figure 4 As shown in , the control and driving device for the reciprocating compressor of the refrigerator involved in an embodiment of the present invention includes: a reciprocating compressor 400, and the compressor 400 can be input to the motor according to the stroke reference value set by the user. The voltage to change the stroke of the piston, so as to control the cooling capacity; the voltage detection unit 402, the voltage detection unit 402 can detect the volta...

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Abstract

Disclosed is an apparatus and a method for controlling a driving of a reciprocating compressor for a refrigerator using a linear motor, in which a capacitance is varied according to a variation of a driving load, thereby improving a driving efficiency of the compressor. To this end, the apparatus for controlling a driving of a reciprocating compressor for a refrigerator using a linear motor comprises a first capacitor for attenuating an inductance of a coil wound on a motor; a second capacitor connected to the first capacitor in parallel; and a relay connected to the second capacitor in series to be turned on / off; and a microcomputer for outputting a control signal to turn on / off the relay according to the driving load of the refrigerator.

Description

technical field [0001] The present invention relates to a reciprocating compressor of a refrigerator using a linear motor, and more particularly to an apparatus and method for controlling and driving a reciprocating compressor of a refrigerator using a linear motor, wherein the capacitance can be changed according to changes in the driving load, Thereby, the driving efficiency of the compressor is improved. Background technique [0002] As is well known, a compressor compresses a refrigerant circulating in a cooling device such as an air conditioner and a refrigerator to high temperature and high pressure. Compressors include reciprocating compressors, rotary compressors, brushless direct current (BLDC) compressors, and variable efficiency reciprocating compressors called inverter compressors and having varying rotational speeds. [0003] Reciprocating compressors using linear motors vary the stroke of their pistons according to the voltage applied to the motor, allowing co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B35/04F04B49/00F25B1/02F25B49/02F25D11/00
CPCF04B2203/0402F04B2203/0401F25B1/02F25B2700/151F25B49/025F04B35/045F04B49/00
Inventor 宋桂永
Owner LG ELECTRONICS INC
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