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

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

Inactive Publication Date: 2004-04-28
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0063] Detailed description of preferred embodiments

[0064] The preferred embodiments of the present invention will now be described in detail, and examples of them are shown in the accompanying drawings.

[0065] The control and drive device for the reciprocating compressor of the refrigerator according to the present invention will now be described.

[0066] Figure 4 It is a block diagram showing the structure of a control and drive device for a reciprocating compressor of a refrigerator according to an embodiment of the present invention.

[0067] Such as Figure 4 As shown in an embodiment of the present invention, the control and driving device for the reciprocating compressor of a refrigerator includes: a reciprocating compressor 400, the compressor 400 can use input to the motor according to the stroke reference value set by the user The voltage of the piston changes the stroke of the piston, so as to control the cooling capacity; the voltage detection unit 402, the vol...

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PUM

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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 a device and method for controlling and driving the reciprocating compressor of a refrigerator using a linear motor, wherein the capacitance can be changed according to the change of the driving load, Thereby improving the driving efficiency of the compressor. Background technique [0002] It is well known that the compressor compresses the refrigerant circulating in a cooling device (such as an air conditioner and a refrigerator) to a high temperature and a high pressure. Compressors include reciprocating compressors, rotary compressors, brushless direct current (BLDC) compressors, and variable-efficiency reciprocating compressors called inverter compressors and having variable rotation speeds. [0003] The reciprocating compressor using a linear motor changes its piston stroke according to the voltage applied to the motor, so that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B35/04F04B49/00F25B1/02F25B49/02F25D11/00
CPCF25B49/025F04B2203/0401F04B2203/0402F25B2700/151F25B1/02F04B35/045F04B49/00
Inventor 宋桂永
Owner LG ELECTRONICS INC
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