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Drive controller and control method for reciprocating compressor

A compressor and reciprocating technology, which is applied in the direction of household refrigeration equipment, electromechanical equipment, pump control, etc., can solve the problems of increased dead zone value, reduced compressor efficiency, increased re-expansion loss, etc.

Inactive Publication Date: 2006-02-15
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the dead zone value increases, thereby increasing the re-expansion loss, thereby reducing the efficiency of the compressor

Method used

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  • Drive controller and control method for reciprocating compressor
  • Drive controller and control method for reciprocating compressor
  • Drive controller and control method for reciprocating compressor

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Embodiment Construction

[0030] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0031] According to the reciprocating motor of the present invention, there may be many embodiments, and the preferred embodiments will be described below.

[0032] Refer to the attached Figures 4 to 8B , illustrating a device for controlling the drive of a reciprocating compressor and its control method, wherein, when the user changes the cooling capacity of the refrigerator, the device can calculate the current deviation value corresponding to the change in cooling capacity, and the calculated The current deviation value is added to the current applied to the compressor in the refrigerator, the added current is provided to the compressor, and the drive of the compressor is controlled, so that the refrigeration capacity of the refrigerator can be reduced without re-expansion loss . In the reciprocating compressor, mova...

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Abstract

Disclosed is an apparatus for controlling a driving of a reciprocating compressor and a method thereof, in which a cooling capacity is decreased without a re-expansion loss by controlling a driving of a compressor used in a refrigerator by using a current offset when the cooling capacity of a refrigerator is varied. To this end, in the compressor which controls the cooling capacity by varying an inner stroke according to a stroke reference value set by a user, the apparatus comprises a storage unit for storing a current offset value corresponding to a cooling capacity variable amount; an adding unit for adding the current offset value to a current value applied to the compressor in accordance with that the cooling capacity is varied by a user; a microcomputer for generating a switching control signal corresponding to the current value added from the adding unit; and a power supply unit for controlling a driving of the compressor by applying the added current to the compressor under a dependent state on the switching control signal.

Description

technical field [0001] The present invention relates to a reciprocating compressor, in particular to a device and method for controlling the drive of the reciprocating compressor. Background technique [0002] Generally, reciprocating compressors are used in refrigerators or air conditioners, and the cooling capacity can be controlled by changing the compression ratio of the reciprocating compressor by using the voltage applied to the inner stator according to the user's intention. Refer below Figures 1 to 3B Describe reciprocating compressors. [0003] figure 1 The shown block diagram represents the structure of an apparatus for controlling the drive of a reciprocating compressor according to the prior art. [0004] Such as figure 1 As shown, in the device for controlling the driving of a reciprocating compressor, according to the stroke reference value set by the user, the internal stroke is changed by receiving the stroke voltage provided by the internal motor (not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B49/12F25D11/02H02K33/02
CPCF04B49/065F04B49/12F04B2203/0201F04B2203/0202F04B49/06
Inventor 许庆范
Owner LG ELECTRONICS INC
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