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Compressor and control method for compressor

A technology for compressors and control parts, applied in AC motor control, linear DC motor control, pump control, etc., can solve problems such as difficulty in using ordinary compressors, improve system stability, optimize operating efficiency, and improve convenience Effect

Active Publication Date: 2018-08-28
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, in the case of an inexpensive refrigerator that is not equipped with a control unit or a refrigerator control unit, or cannot match the operation cycle of the linear motor, there is a problem that it is difficult to use the general compressor as described above.

Method used

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  • Compressor and control method for compressor
  • Compressor and control method for compressor
  • Compressor and control method for compressor

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Embodiment Construction

[0056] The invention disclosed in this specification is applicable to a compressor and its control method. However, the invention disclosed in this specification is not limited thereto, and the technical solution of the present invention is applicable to all existing compressors, and is also applicable to compressor control devices, compressor control methods, motor control devices, A motor control method, a motor noise test device, and a motor noise test method.

[0057] The technical terms in this specification are used only to describe a specific embodiment, so it should be noted that they are not intended to limit the technical concepts disclosed in this specification. In addition, as long as the technical terms used in this specification are not specifically defined in other meanings in this specification, those with ordinary knowledge in the technical field to which the technology disclosed in this specification belongs should interpret it as the usual meaning and should...

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Abstract

The objective of the present invention is to provide a compressor that is applied to a refrigerator without a cycle matching capability or a refrigerator without a control unit and can control the driving of a linear motor by itself, in order to solve the problems of conventional compressors; and a control method therefor. To this end, a compressor installed in an apparatus including a refrigerantcycle disclosed in the present specification comprises: a piston reciprocating in a cylinder; a linear motor for providing a driving force for the movement of the piston; a sensing unit for sensing amotor current of the linear motor; and a compressor control unit for detecting information related to a load of the apparatus, separately from a control unit for controlling a main body of the apparatus, wherein the compressor control unit calculates a phase difference between a stroke of the piston and the sensed motor current, compares the calculated phase difference with a reference phase difference value, and controls the driving of the linear motor in accordance with the detected load on the basis of the comparison result.

Description

technical field [0001] The present invention relates to a compressor and a control method thereof, and more specifically, to a compressor that generates a control signal related to the drive of the compressor and controls a motor of the compressor, and a control method of the compressor. Background technique [0002] A compressor is a device that converts mechanical energy into compression energy of a compressed fluid, and is generally used, for example, in refrigeration equipment that is a part of a refrigerator or an air conditioner. [0003] Compressors are broadly classified into reciprocating compressors, rotary compressors, and scroll compressors. In a reciprocating compressor, a compression space capable of sucking or discharging working gas is formed between the piston and the cylinder, thereby compressing the refrigerant while the piston performs linear reciprocating motion inside the cylinder. In a rotary compressor, a compression space for sucking or discharging ...

Claims

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Application Information

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IPC IPC(8): F04B49/06F04B35/04F04B49/12
CPCF04B35/045F04B49/065F04B49/12F04B2201/0206F04B2203/0401F04B2203/0402F04B35/04F04B49/06H02P25/06H02P7/02
Inventor 柳那伊具珉
Owner LG ELECTRONICS INC
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