Oil return control method and device of variable frequency air conditioner compressor

A technology for inverter air conditioners and compressors, which can be used in compressors, refrigerators, refrigeration components, etc., and can solve problems such as compressor damage.

Active Publication Date: 2016-05-18
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide an oil return control method and device for an inverter air conditioner compressor to solve the exi

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  • Oil return control method and device of variable frequency air conditioner compressor
  • Oil return control method and device of variable frequency air conditioner compressor
  • Oil return control method and device of variable frequency air conditioner compressor

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] The embodiment of the present invention provides an oil return control method for an inverter air conditioner compressor, such as figure 1 shown, including:

[0028] Step 101, acquiring the first operating frequency of the compressor.

[0029] Wherein, the first operating frequency of the compressor refers to the current real-time operating frequency of the compressor. Specifically, the operating frequency of the compressor can be monitored in real time th...

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Abstract

The embodiment of the invention provides an oil return control method and device of a variable frequency air conditioner compressor, and relates to the technical field of variable frequency air conditioners. The oil return control method and device are used for solving the problem that when a fixed oil return frequency is adopted for carrying out oil return control over the variable frequency air conditioner compressor, the compressor is damaged. The method comprises the steps that a first running frequency of the compressor is acquired; the temperature of the outdoor temperature where the compressor is located is acquired; the oil return frequency of the compressor is determined according to the temperature of the outdoor temperature and a first preset rule, wherein the first preset rule comprises the corresponding relationship between the temperature of the outdoor environment and the oil return frequency of the compressor; and the first running frequency of the compressor is adjusted to be the oil return frequency. The oil return control method and device can be used for oil return control over the variable frequency air conditioners.

Description

technical field [0001] The invention relates to the technical field of frequency conversion air conditioners, in particular to an oil return control method and device for frequency conversion air conditioner compressors. Background technique [0002] During the operation of the inverter air conditioner, the lubricating oil will be discharged from the compressor along with the refrigerant and enter the evaporator, condenser and piping. Only when the discharged lubricating oil returns to the compressor smoothly, can the dynamic balance of the lubricating oil in the entire system be maintained, otherwise, the compressor will be damaged due to lack of oil. The process of draining lubricating oil from the compressor to return to the compressor is called oil return. [0003] After the inverter air conditioner is shut down, the lubricating oil in the compressor will be discharged from the compressor. Therefore, the compressor may have a problem of oil shortage during the restart p...

Claims

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Application Information

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IPC IPC(8): F25B49/02F25B31/00
CPCY02B30/70
Inventor 张永良
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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