Amplitude control method for reciprocating compressor

A technology of amplitude control and compressor, which is applied in the direction of pump control, machine/engine, liquid variable capacity machinery, etc. It can solve the problems of extra amplitude and achieve the effect of preventing extra amplitude and reducing noise

Inactive Publication Date: 2004-11-24
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

[0006] According to the load, because the reciprocating compressor only needs a large amplitude in a certain range at the beginning of the start-up, and it takes a long time to achieve a large amplitude, but it does not need to have a large vibration in the normal operating range. Large amplitude, so issues with extra amplitude

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  • Amplitude control method for reciprocating compressor
  • Amplitude control method for reciprocating compressor
  • Amplitude control method for reciprocating compressor

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Embodiment Construction

[0015] The amplitude control method of the reciprocating compressor of the present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments:

[0016] First, the configuration of the device applicable to the amplitude control method of the reciprocating compressor of the present invention is the same as figure 1 The device shown in is the same.

[0017] Such as image 3 The work flow chart of the amplitude control method of the reciprocating compressor according to the present invention is shown, the method is divided into four processes, the first process SP1 detects the motor voltage and the motor current, the second process SP2, SP3 uses the motor Voltage and motor current, detect the current load, and then compare this load with the reference load. The third process SP4 changes the opening time and closing time of the switch control signal that controls the amplitude according to the comparison result in the secon...

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Abstract

The present invention relates to amplitude controlling method for reciprocating compressor, and is especially one amplitude controlling method to prevent excessive amplitude via altering the amplitude based on load in the initial stage automatically. The amplitude controlling method includes four steps: detecting motor voltage and motor current; detecting current load based on the detected voltage and current and comparing the load with reference load; altering the on time and off time of the switch control signal based on the comparison result; and controlling the on-off of the three terminal bi-directional SCR element to drive the reciprocating compressor with the switch control signal.

Description

technical field [0001] The present invention relates to the field of amplitude control methods for reciprocating compressors, and in particular to the amplitude control method for reciprocating compressors that changes and controls the amplitude in the range of amplitude rise and deviation according to the load at the initial stage of start-up, thereby preventing additional amplitude . Background technique [0002] Reciprocating compressors do not have a shaft that converts rotary motion into linear motion, so the friction loss is very small, and the compression efficiency is higher than that of ordinary compressors. When reciprocating compressors are used in refrigerators or air conditioners , By changing the amplitude voltage recorded to the reciprocating compressor, the compression ratio of the reciprocating compressor can be changed, so that the refrigeration capacity can be controlled. [0003] figure 1 It is a circuit diagram of the operation control device of the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B35/04F04B49/06
Inventor 全荣焕申东熙裴奎钟李右根
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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