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Compressor system, air conditioner and oil return control method of compressor

A compressor system and oil return control technology, applied in compressors, refrigerators, refrigeration components, etc., can solve problems such as the reduction of capillary oil return speed, affect the service life of the compressor, and the oil return speed cannot be adjusted, so as to reduce the temperature Effect

Active Publication Date: 2014-04-23
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related technology, the compressor of the air conditioner controls the oil return through the capillary tube, and the oil return speed cannot be flexibly adjusted according to the temperature in the compressor, which is easy to cause damage to the compressor system
[0003] For example, when the compressor is running at a low temperature (at this time, the temperature inside the compressor is low), the lubricating oil becomes viscous, the oil return speed of the capillary decreases, and even the capillary is blocked, and the lubricating oil Failure to return to the crankcase of the compressor in time may cause oil shortage in the system, cause wear to the compressor, and affect the service life of the compressor; and when the compressor is running at a high temperature (the Higher temperature), the return speed of lubricating oil is faster, in order to maintain the oil quantity in the crankcase in the compressor in a stable state, it is also necessary to control the return speed of lubricating oil

Method used

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  • Compressor system, air conditioner and oil return control method of compressor
  • Compressor system, air conditioner and oil return control method of compressor
  • Compressor system, air conditioner and oil return control method of compressor

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Embodiment Construction

[0042] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0044] figure 1 A schematic structural diagram of a compressor system of an air conditioner according to an embodiment of the present invention is shown.

[0045] Such as figure 1 As shown, the co...

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Abstract

The invention provides a compressor system, an air conditioner, and an oil return control method of a compressor. The compressor system comprises a compressor, a lubricating oil separator, an electronic expansion valve, a temperature measurement unit and a control unit. The lubricating oil separator is connected with an air outlet of the compressor through a pipe for separating condensate discharged from compressor from lubricating oil, and a lubricating oil outlet of the lubricating oil separator is connected is connected with an air return port of the compressor through a pipe. The electronic expansion valve is arranged on the lubricating oil outlet of the lubricating oil separator and is used for controlling the return velocity of the lubricating oil in the lubricating oil separator by adjusting the opening angle of the electronic expansion valve. The temperature measurement unit is connected with the control unit, arranged on the compressor, and used for measuring the temperature in the compressor. The control unit is connected with the electronic expansion valve and used for controlling the electronic expansion valve to adjust the opening angle of the electronic expansion valve according to the temperature in the compressor. According to the compressor system, the air conditioner, and the oil return control method of the compressor, the opening angle of the electronic expansion valve can be adjusted freely according to the temperature in the compressor so as to ensure that the amount of the lubricating oil in the compressor is in a relatively stable state.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a compressor system, an air conditioner and an oil return control method for a compressor. Background technique [0002] In the related art, the compressor of the air conditioner controls the oil return through the capillary tube, and the oil return speed cannot be flexibly adjusted according to the temperature in the compressor, which may easily cause damage to the compressor system. [0003] For example, when the compressor is running at a low temperature (at this time, the temperature inside the compressor is low), the lubricating oil becomes viscous, the oil return speed of the capillary decreases, and even the capillary is blocked, and the lubricating oil Failure to return to the crankcase of the compressor in time may cause oil shortage in the system, cause wear to the compressor, and affect the service life of the compressor; and when the compressor is running at ...

Claims

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Application Information

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IPC IPC(8): F25B31/00F25B41/06F25B49/02
CPCY02B30/72Y02B30/70
Inventor 申孟亮
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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