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Start control method of fast refrigerating and fast heating for direct current variable frequency air conditioner

A technology of DC frequency conversion and control method, which is applied in heating and ventilation control systems, heating methods, lighting and heating equipment, etc., and can solve problems such as inability to achieve rapid cooling and rapid heating.

Active Publication Date: 2012-11-21
安徽奥克斯智能电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the actual operation effect of the current DC inverter air conditioner operating according to this control method, one of the biggest problems exists is: after the DC inverter compressor completes the start-up process and transfers to the automatic control process, when it runs according to the target frequency, it starts from the DC inverter compressor. It takes more than 30 minutes for the temperature in the air-conditioned room to reach the temperature set by the user. Even after an hour, the temperature in the air-conditioned room has not reached the required temperature, and it is still unable to achieve rapid cooling and rapid heating. Effect

Method used

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  • Start control method of fast refrigerating and fast heating for direct current variable frequency air conditioner
  • Start control method of fast refrigerating and fast heating for direct current variable frequency air conditioner
  • Start control method of fast refrigerating and fast heating for direct current variable frequency air conditioner

Examples

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Effect test

example 1

[0048] Example 1: Cooling Mode Quick Start Control

[0049] The timing diagram of quick start control in cooling mode is shown in the appendix image 3 As shown, the control methods of the main control components in the DC inverter air conditioning system are as follows:

[0050] DC inverter compressor control method: When the user sends a start-up command through the remote control, the DC inverter compressor starts to start, and after the first startup platform runs at a frequency of 30Hz for 60 seconds, it transfers to the second startup platform and runs at a frequency of 65Hz for 40 seconds. Enter the rapid cooling process. At this time, the DC inverter compressor operates at a frequency of 85Hz for 10 minutes, and then transfers to the automatic control process, and the DC inverter compressor operates at the calculated target frequency;

[0051] Unloading solenoid valve control method: The unloading solenoid valve is opened in advance 20 seconds before the start of the ...

example 2

[0059] Example 2: Quick start control method in heating mode

[0060] Please refer to the appendix for the timing diagram of quick start control in heating mode Figure 5 As shown, the control methods of the main control components in the DC inverter air conditioning system are as follows:

[0061] DC inverter compressor control method: When the user sends a start-up command through the remote control, the DC inverter compressor starts to start, and after the first startup platform runs at a frequency of 30Hz for 60 seconds, it transfers to the second startup platform and runs at a frequency of 65Hz for 40 seconds. Enter the rapid heating process. At this time, the DC inverter compressor operates at a frequency of 85Hz for 10 minutes, and then transfers to the automatic control process, and the DC inverter compressor operates at the calculated target frequency;

[0062] Unloading solenoid valve control method: The unloading solenoid valve is opened in advance 20 seconds befor...

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Abstract

The invention discloses a start control method of fast refrigerating and fast heating for a direct current variable frequency air conditioner. The method comprises the step of controlling quick start respectively in a refrigerating mode and a heating mode. Control methods of main control parts in a direct current variable frequency air conditioner system are as follows: a control method of a direct current variable frequency compressor, a control method of unloading an electromagnetic valve, a control method of a main electronic expansion valve for heating, a control method of an outdoor fan motor, a control method of an indoor electronic expansion valve when the direct current variable frequency air conditioner is started, a control method of the indoor electronic expansion valve when the direct current variable frequency air conditioner is not started, a control method of the indoor fan motor when the direct current variable frequency air conditioner is started and a control method of the indoor fan motor when the direct current variable frequency air conditioner is not started.

Description

technical field [0001] The invention relates to the technical field of frequency conversion air conditioners, in particular to a control method for rapid cooling and rapid heating start of DC frequency conversion air conditioners. Background technique [0002] At present, with the acceleration of people's life rhythm, when returning home from get off work at noon or at night, after turning on the air conditioner, it is hoped that the air conditioner can quickly provide a cool or warm air-conditioning effect. At present, the technology for providing rapid cooling / heating functions for conventional fixed-frequency air conditioners is to use a method of operating with a large air volume and a high wind speed. [0003] The State Intellectual Property Office has published an invention patent for an air conditioner refrigeration / heating control method on the Internet. The steps are: [0004] (1) Choose to enter the fast cooling / heating mode; [0005] (2) Detect the indoor temper...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 郑坚江程德威
Owner 安徽奥克斯智能电气有限公司
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