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Driving controlling apparatus for reciprocating compressor

A reciprocating compressor technology, applied in the field of drive control devices, can solve the problem that the stroke is not controlled smoothly, slow, etc.

Inactive Publication Date: 2003-07-16
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] Therefore, in order to improve the efficiency of the reciprocating motor, if the size of the motor (thickness of the magnet) is increased, the air gap is increased, causing a problem: increasing the overall size and cost of the reciprocating compressor
Then, the current according to the voltage value of the stroke control of the reciprocating compressor will work slowly, so the stroke is not controlled smoothly

Method used

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  • Driving controlling apparatus for reciprocating compressor
  • Driving controlling apparatus for reciprocating compressor
  • Driving controlling apparatus for reciprocating compressor

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Embodiment Construction

[0027] Hereinafter, the operation and effects of the drive control device for the reciprocating compressor will be described in detail with reference to the accompanying drawings.

[0028] figure 2 It is a diagram showing the structure of a drive control device for a reciprocating compressor using resonance according to the present invention.

[0029] Such as figure 2 As shown, the driving control device of the reciprocating compressor includes: a reciprocating compression unit (L.COMP), which is used to control the refrigeration force by changing the stroke of the piston movement through the voltage applied to the internal motor according to the stroke command value; the voltage detector 30 , used to detect the voltage generated in the reciprocating compression unit (L.COMP) when the stroke is increased by the applied voltage; the current detector 20; used to detect the voltage applied to the reciprocating compression unit (L.COMP) when the stroke is increased by the appli...

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Abstract

A driving controlling apparatus for reciprocating compressor using resonance, uses resonance increased in the current corresponding characteristic by compensating the inductance value of a coil turned inner part of the motor using a capacitor. A electric circuit further comprises a capacitor for compensating the inductance of the coil which is wound around the motor of the reciprocating compressing unit, accordingly, the burden of the applied voltage against the inductance is reduced, so low applied voltage can generate the stroke needed and the variation of the current hardly effect to the variation of the stroke. Therefore, stable load characteristic is maintained because the stroke variation is low even if the load variation is generated.

Description

technical field [0001] The present invention relates to a drive control device for a reciprocating compressor using resonance, and more particularly to a drive control device for a reciprocating compressor using resonance that cancels out a coil in a motor by using a capacitor Inductance value with high current resistance characteristics. Background technique [0002] Typically, in reciprocating compressors, switching devices are used to turn off the power supplied to the coils in the multiphase stator in order to thereby generate rotational torque. In this regard, by sequentially changing the excitation state between the rotor and the stator, a positive rotational torque can be generated by the magnetic attraction force. [0003] If the specific excitation state does not change, the rotor can be stopped at a certain position, and by controlling the phase of the input pulse signal applied to the switching device with a maximum inductance as a starting point, a counter-rotat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B35/04F04B49/00
CPCF04B35/045F04B49/00
Inventor 刘载有宋桂永许庆范李衡国
Owner LG ELECTRONICS INC