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A frequency conversion air conditioner and its control method

A frequency conversion air conditioner and controller technology, applied in the field of air conditioners, can solve problems such as too much or too little, refrigerant addition, and air conditioners prone to failure.

Active Publication Date: 2020-09-11
HISENSE HOME APPLIANCES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an inverter air conditioner and its control method to solve the problem that the system pressure of the inverter air conditioner in the prior art changes greatly due to changes in operating parameters, which may cause too much or too little refrigerant to be added, resulting in Air conditioner is prone to failure problems

Method used

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  • A frequency conversion air conditioner and its control method
  • A frequency conversion air conditioner and its control method
  • A frequency conversion air conditioner and its control method

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Embodiment 1

[0018] Embodiment 1, inverter air conditioner

[0019] An embodiment of the present invention provides an inverter air conditioner, refer to figure 1 and figure 2 , the inverter air conditioner 1 may include: a refrigerant circuit composed of a compressor 11 , an outdoor heat exchanger 12 , a throttling device 13 and an indoor heat exchanger 14 connected in sequence, and an outdoor fan 15 and an indoor fan 16 . The variable frequency air conditioner 1 provided by the embodiment of the present invention also includes a control module 17, which is used to receive the start signal of the fixed parameter mode; Running in the fixed parameter mode may include: controlling the compressor 11 to operate at a fixed frequency, the indoor fan 16 at a first preset speed, the outdoor fan 15 at a second preset speed, and the throttling device 13 at a preset opening degree.

[0020] It should be noted that the outdoor heat exchanger of the air conditioner acts as a radiator during coolin...

Embodiment 2

[0043] Embodiment 2: Inverter air conditioner control method

[0044] Correspondingly, an embodiment of the present invention provides a method for controlling an inverter air conditioner, and the execution subject of the method may be the above-mentioned inverter air conditioner, or may be a control module in the inverter air conditioner. refer to image 3 , the inverter air conditioner control method may include:

[0045] S101. Receive a fixed parameter mode start signal. Optionally, a signal for instructing the start key of the fixed parameter mode of the inverter air conditioner to be triggered is received as the start signal of the fixed parameter mode. Exemplarily, maintenance personnel or users can press or touch the start key of the fixed parameter mode to trigger.

[0046]S102. Control the variable frequency air conditioner to operate in the fixed parameter mode according to the start signal of the fixed parameter mode. The control of the variable frequency air c...

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Abstract

The embodiment of the invention discloses a variable frequency air conditioner and a control method thereof, and relates to the field of air conditioners. The problems that in the prior art, because the change of operation parameters of the variable frequency air conditioner changes, the change of the system pressure of the operation process is quite large, excessive or too small amount of refrigerant can be added, and an air conditioner easily breaks down are solved. The variable frequency air conditioner comprises a control module, wherein the control module is used for receiving fixed-parameter mode starting signals and starting the signals according to the fixed-parameter mode, the variable frequency air conditioner is controlled to operate according to the fixed-parameter mode, and the variable frequency air conditioner is controlled to run according to the fixed-parameter mode: the compressor is controlled to rotate at a fixed frequency, an indoor fan is at a first preset rotating speed, and an outdoor fan is arranged at a second preset rotating speed, and a throttling device is operated at a preset opening degree. The variable frequency air conditioner control method is used for the control process of the variable frequency air conditioner.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an inverter air conditioner and a control method thereof. Background technique [0002] After the air conditioner is installed or operated for a period of time, due to various reasons, it may be necessary to add refrigerant (also called refrigerant). The traditional fixed-frequency air conditioner products are fixed at 50Hz. The general practice of maintenance personnel is: according to the indoor temperature and the pressure of the low-pressure valve , it is very easy to judge whether the air conditioner refrigerant is normal. Inverter air conditioners vary in operating frequency, and different products have different maximum and minimum operating frequencies. For some inverter air conditioners with electronic expansion, the opening of the electronic expansion valve also changes continuously during the process of adding refrigerant, which will lead to system failure during operat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/54F24F11/61F24F11/64F24F11/65F24F11/77F24F11/84
CPCF24F11/54F24F11/61F24F11/64F24F11/65F24F11/77F24F11/84Y02B30/70
Inventor 陈绍楷刘忠民许红瞬
Owner HISENSE HOME APPLIANCES GRP CO LTD
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