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Air conditioner automatic oil return control method and device

An oil return control and air conditioning technology, which is applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of inaccurate judgment methods for oil shortage of air conditioning units, and achieve the problem of solving the inaccuracy of oil shortage judgment methods and improving accuracy. Effect

Active Publication Date: 2019-08-20
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides an air conditioner automatic oil return control method and device to at least solve the problem in the prior art that the method for judging the lack of oil in the air conditioner unit is not accurate enough

Method used

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  • Air conditioner automatic oil return control method and device
  • Air conditioner automatic oil return control method and device
  • Air conditioner automatic oil return control method and device

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Embodiment 1

[0023] A preferred embodiment 1 of the present invention provides an air conditioner automatic oil return control method, which can be applied to air conditioner units, such as household air conditioner units, air conditioner units for shopping malls or workshops, and air conditioner units for ships, etc. In addition , the method can also be applied to other equipment with the function of an air-conditioning unit. The method can be implemented as a built-in program on the air-conditioning unit or device, or can be implemented by installing an application (APP) or software on the air-conditioning unit or device, figure 1 An alternative flow chart showing the method, such as figure 1 As shown, the method includes the following steps S102-S106:

[0024] S102, obtaining operating parameters of the oil pressure of the compressor, the operating power of the air conditioner, the operating energy efficiency of the air conditioner, and the exhaust temperature of the compressor when th...

Embodiment 2

[0036] According to the method for controlling the automatic oil return of the air conditioner provided in the preferred embodiment 1 of the present invention, an automatic oil return control device for the air conditioner is provided in the preferred embodiment 2 of the present invention. figure 2 An optional structural block diagram of the device is shown, such as figure 2 As shown, the device includes:

[0037] an obtaining unit 202, configured to obtain the operating parameters of the oil pressure of the compressor, the operating power of the air conditioner, the energy efficiency of the air conditioner operation, and the exhaust temperature of the compressor during the operation of the air conditioner;

[0038] The judging unit 204, connected with the obtaining unit 202, is used for judging whether the air conditioner is in an oil-deficient operation state according to the obtained operating parameters;

[0039] The control unit 206, connected to the determination unit...

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Abstract

The invention discloses an air conditioner automatic oil return control method and device. The air conditioner automatic oil return control method comprises the steps that the oil pressure of a compressor, the running power of an air conditioner, the running energy efficiency of the air conditioner and operating parameters of the exhaust temperature of the compressor during running of the air conditioner are obtained; the situation that whether the air conditioner is in an oil-deficient running state or not is judged according to the obtained operating parameters; and when the situation that the air conditioner is in the oil-deficient running state is judged, and the air conditioner is controlled to enter into an oil return control mode so as to control the air conditioner to conduct oil return. The air conditioner automatic oil return control method and device solve the problem that an oil-deficient judgment mode of an air conditioner unit in the prior art is not accurate enough, andaccuracy of oil-deficient judgment of the air conditioner unit and reliability of unit running are improved.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and in particular, to a method and device for controlling automatic oil return of an air conditioner. Background technique [0002] During the long-term operation of the cold water air-conditioning system, due to the large amount of gas-liquid two-phase fluid circulation in the system, various valve parts exist in the system, the refrigerant and lubricating oil in the system have internal leakage and large pressure drop. Operating under special extreme conditions, the exhaust pressure is high, and there is liquid in the system, and the oil separation efficiency of the system is poor, resulting in the frequent shutdown of the unit due to oil shortage protection, the quality and life of the compressor is greatly affected, and the comfort of the product at the customer negatively impact reliability. [0003] In the prior art, there are air-conditioning units that can realize the oi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/00
Inventor 罗建飞张威何林卢浩贤曾奕张磊
Owner GREE ELECTRIC APPLIANCES INC
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