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A whole-process anti-cold wind control method for frequency conversion air conditioner

A frequency conversion air conditioner and control method technology, which is applied to the control input involving air characteristics, space heating and ventilation control input, heating and ventilation control systems, etc., can solve problems affecting user comfort, cold air blowing, etc. Comfort, prevent the effect of cold wind blowing when the machine is turned on

Active Publication Date: 2021-01-26
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing anti-cold air control method of the inverter air conditioner has the following technical problems: after exiting the anti-cold air function when starting up, when the ambient temperature is close to the set temperature, the inverter air conditioner will run at a low frequency, and the coil temperature will drop at this time. There will be a problem of cold air blowing out; and fixed-frequency air conditioners will not have this problem because the frequency remains unchanged; therefore, the inverter air conditioner adopts the same anti-cold air control method as the fixed-frequency air conditioner, and it will blow out cold air during the heating mode operation, which will affect users. Comfort of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]In this embodiment, set TE1 to 28°C, TE2 to 40°C, TE3 to 34°C, TE4 to 38°C, TA1 to 20°C, TY1 to 10S, TY2 to 90S, TF1 to 2min, ΔT1 to -1°C, ΔT2 to -3℃, the indoor ambient temperature is 10℃ when the machine is turned on, the remote control set wind speed is medium-speed wind, the temperature TS is 28℃, when the cold wind prevention function is just exited, the indoor ambient temperature TA is 26℃, the control process as follows:

[0031](1) Start in the heating mode and enter the anti-cold wind function; since the indoor ambient temperature TA is less than 20°C, only when the compressor running time TY exceeds 90S, or the coil temperature TE is greater than 28°C, the internal machine The indoor fan controlled by the main board starts to operate with low-speed wind; when the coil temperature TE is greater than 40°C, or the low-speed wind running time TF exceeds 2 minutes, the internal main board controls the inverter air conditioner to exit the anti-cold wind function when starting...

Embodiment 2

[0034]In this embodiment, TE1 is set to 29°C, TE2 is 38°C, TE3 is 31°C, TE4 is 36°C, TA1 is 18°C, TY1 is 15S, TY2 is 110S, TF1 is 1 min, ΔT1 is -2°C, and ΔT2 is -4℃, the indoor ambient temperature is 19℃ when the machine is turned on, the remote control set wind speed is medium-speed wind, the temperature TS is 29℃, when the anti-cold wind function is just exited, the indoor ambient temperature TA is 28℃, the control process as follows:

[0035](1) Turn on in heating mode and enter the anti-cold wind function; since the indoor ambient temperature TA is greater than 18°C, when the compressor running time TY exceeds 15S, or the coil temperature TE is greater than 29°C, it can be controlled by the internal machine mainboard The indoor fan starts to operate with low-speed wind; when the coil temperature TE is greater than 38°C, or the low-speed wind running time TF exceeds 1 min, the internal main board controls the inverter air conditioner to exit the cold wind prevention function when it...

Embodiment 3

[0038]In this embodiment, set TE1 to 30°C, TE2 to 42°C, TE3 to 35°C, TE4 to 40°C, TA1 to 22°C, TY1 to 20S, TY2 to 120S, TF1 to 3min, ΔT1 to -0.5°C, ΔT2 to -2°C, the indoor ambient temperature is 5°C when the machine is turned on, the remote control set wind speed to high-speed wind, and the set temperature TS is 30°C. When the anti-cold wind function is just exited, the indoor temperature TA is 24°C. The control process is as follows :

[0039](1) Start in the heating mode and enter the anti-cold wind function; since the indoor ambient temperature TA is less than 22°C, only when the compressor running time TY exceeds 120S, or the coil temperature TE is greater than 30°C, the internal machine The indoor fan controlled by the main board starts to run with low-speed wind; when the coil temperature TE is greater than 42°C, or the low-speed wind running time TF exceeds 3 minutes, the internal main board controls the inverter air conditioner to exit the anti-cold wind function after startup;...

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Abstract

A whole-process anti-cold air control method for an inverter air conditioner, characterized in that it comprises the following steps: (1) start the machine in a heating mode, enter the anti-cold air function when starting up, and control the indoor fan by an internal machine mainboard in an indoor electric control box (2) After exiting the anti-cold wind function, the main board of the indoor unit controls the indoor fan to run at the set wind speed of the remote control, and according to the indoor ambient temperature TA, coil temperature TE, and remote control Set the temperature TS of the inverter to control whether the anti-cold air function is valid during the heating operation of the inverter air conditioner and the wind speed of the indoor fan. When the anti-cold air function is invalid during the heating operation, the indoor fan runs at the set wind speed. The whole-process anti-cold wind control method of the inverter air conditioner can prevent cold wind during startup and normal heating operation, and has high product comfort.

Description

Technical field[0001]The invention relates to the technical field of air conditioners, in particular to a whole-process anti-cold wind control method of an inverter air conditioner.Background technique[0002]The current inverter air conditioner basically uses the anti-cold air control method of the fixed frequency air conditioner in the heating mode, that is, wait for the temperature of the middle coil of the indoor unit evaporator to rise or wait for the compressor to run for a period of time before the air is discharged. Avoid blowing out cold air when it is just turned on.[0003]However, the existing anti-cold air control method for inverter air conditioners has the following technical problems: after exiting the anti-cold air function at startup, when the ambient temperature is close to the set temperature, the inverter air conditioner will run at low frequency, and the coil temperature will drop at this time. There will be a problem of cold air blowing; while the fixed frequency ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/77F24F110/10F24F140/20
CPCY02B30/70
Inventor 颜景旭应必业
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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