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Compressor, refrigeration appliance and control method for compressor

A control method and technology for compressors, applied in the field of compressors, can solve the problems of high cost, limited range and accuracy of oil level sensors, and inability to be widely used in compressors, achieving low cost, guaranteed measurement accuracy, and improved long-term reliability. Effect

Active Publication Date: 2018-06-01
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: the range and accuracy of the oil level sensor are limited, and the cost is high, so it cannot be widely used in compressors

Method used

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  • Compressor, refrigeration appliance and control method for compressor
  • Compressor, refrigeration appliance and control method for compressor
  • Compressor, refrigeration appliance and control method for compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This preferred embodiment discloses a compressor, such as figure 1 with figure 2 As shown, the compressor includes an upper flange 1, a stator winding 2 and a control device, a temperature detection element 3 is arranged at the journal of the upper flange 1, a temperature detection element 3 is arranged in the stator winding 2, or a temperature detection element 3 is arranged in the upper flange 1 Both the journal of the flange 1 and the inside of the stator winding 2 are provided with a temperature detection element 3, and the signal of the temperature detection element 3 is connected to the control device.

[0031] Generally, the journal part of the upper flange 1 is not soaked in lubricating oil, and it will quickly generate a large amount of heat when it rubs against the crankshaft at high speed. If the oil discharge rate of the compressor is too large or the oil lubrication effect is poor, it will easily cause The journal position of the upper flange 1 runs witho...

Embodiment 2

[0047] This preferred embodiment discloses a refrigeration appliance, including the compressor described in the first preferred embodiment. The refrigeration appliances can be but not limited to air conditioners and refrigerators; among them, the compressors can be but not limited to single-stage single-cylinder roller, multi-stage multi-cylinder, scroll, linear, rotary cylinder, piston and screw compressors and other products.

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Abstract

The invention discloses a compressor, a refrigeration appliance and a control method of the compressor and belongs to the technical field of compressors and control methods of the compressors. The compressor, the refrigeration appliance and the control method of the compressor are designed to solve the problems that an existing method is high in cost and the like. The compressor comprises an upper flange, a stator winding and a control device. The shaft neck portion of the upper flange and / or the inner portion of the stator winding are / is provided with temperature detection elements / a temperature detection element. Each temperature detection element is connected to the control device. According to the control method of the compressor, whether the temperature value of the shaft neck portion of the upper flange and / or the temperature value in the stator winding exceed / exceeds a threshold value or not is detected, and then whether the compressor operates in an oil-starvation state or not can be judged. The compressor, the refrigeration appliance and the control method of the compressor can replace an existing oil level sensor to judge whether the compressor operates in the oil-starvation state or not, the cost is low, the application range is wide, the measuring range and the measuring precision are guaranteed, use is safer, and the service lives are longer.

Description

technical field [0001] The present invention relates to the technical field of compressors and control methods thereof, and in particular to a compressor, a refrigeration appliance including the compressor, and a control method based on the compressor. Background technique [0002] The interior of the compressor of refrigeration appliances such as air conditioners and refrigerators will continuously generate heat during the working process. When the working conditions are worse, the speed of the compressor will be higher, and the multiple internal contact surfaces will rub at high speed, which will generate huge heat, which will easily cause serious wear of parts such as shafts or flanges; the cooling medium or refrigeration oil will be affected by high temperature Qualitative changes will occur, which will affect the performance and reliability of the whole machine; the higher the speed, the greater the motor load, the greater the current, and the more serious the heat, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C28/28F04C29/02
CPCF04C28/28F04C29/02
Inventor 邓敏胡余生魏会军黄伟才
Owner GREE ELECTRIC APPLIANCES INC