An air conditioning device with adaptive temperature-humidity coupling control

Abstract

This invention provides an air conditioning unit with coupled temperature and humidity adaptive control, comprising a sensing module, a cooling regulation module, and a control module. The sensing module is configured to sense the indoor temperature and humidity of the indoor space. The cooling regulation module is configured to regulate heat exchange within the indoor space. The control module includes multiple operating modes and, based on any selected operating mode, dynamically adjusts the operating frequency of the cooling regulation module or performs start-stop control based on indoor temperature, set temperature, indoor humidity, set humidity, or any combination thereof. Therefore, the air conditioning unit of this invention can adaptively regulate both indoor temperature and humidity under different operating modes, thereby significantly improving indoor environmental comfort and inverter energy-saving performance.

Claims

1. An air conditioning device with temperature and humidity coupled adaptive control, comprising: a sensing module configured to sense an indoor temperature and an indoor humidity of an indoor space; a cooling regulation module configured to regulate heat exchange in the indoor space; and a control module electrically connected to the sensing module and the cooling regulation module, the control module including a plurality of operating modes, and dynamically adjusting the operating frequency of the cooling regulation module or performing a start-stop control based on the selected operating mode, the indoor temperature, a set temperature, the indoor humidity, a set humidity, or any combination thereof.

2. The air conditioning unit as described in claim 1, wherein, When the control module selects the operating mode of the air conditioning mode with manual humidity setting, and the indoor temperature drops to the set temperature while the indoor humidity does not reach the set humidity, the control module controls the cooling regulation module to switch to the low-frequency operating frequency.

3. The air conditioning unit as described in claim 1, wherein, When the control module selects a manual humidity setting for the air conditioning mode, the control module will execute the start-stop control to stop the operation of the refrigeration regulating module if one of the following shutdown conditions is met: Condition 1: The indoor temperature is lower than the set temperature and the indoor humidity is lower than the set humidity; Condition 2: The indoor temperature is lower than the set temperature and reaches a dynamic temperature compensation value; or Condition 3: The indoor temperature is lower than a safe low temperature limit value.

4. The air conditioning unit as described in claim 1, wherein, When the control module selects the operating mode of the intelligent dehumidification cooling mode, the control module inputs the set temperature into a temperature and humidity negative correlation mapping lookup table to dynamically calculate a set humidity target value that is negatively correlated with the set temperature. The control module increases or decreases the operating frequency of the cooling regulation module according to the set humidity target value.

5. The air conditioning unit as described in claim 4, wherein, When the set temperature changes within a preset temperature range, the control module calculates the set humidity target value from the temperature and humidity negative correlation mapping lookup table based on a dynamic target correction logic. The target value is negatively correlated with the change in the set temperature by a linear slope or a negatively correlated step difference.

6. The air conditioning unit as described in claim 4, wherein, When the control module selects an intelligent dehumidification cooling mode, if one of the following shutdown conditions is met, the control module will execute the start-stop control to stop the cooling regulation module from operating: Condition 1: The indoor temperature is lower than the set temperature, and the indoor humidity is lower than the set humidity target value; Condition 2: The indoor temperature is lower than the set temperature and reaches a dynamic temperature compensation value; or Condition 3: The indoor temperature is lower than a safe low temperature limit value.

7. The air conditioning unit as described in claim 6, wherein, The control module uses an environmental adaptive algorithm to determine the time change slope of the set temperature and dynamically corrects the dynamic temperature compensation value; and the control module uses the environmental adaptive algorithm to calculate the dew point temperature of the indoor space and dynamically adjusts the safe low temperature limit value accordingly.

8. The air conditioning unit as described in claim 1, wherein, When the control module selects either a dehumidification mode with manual humidity setting or a dehumidification mode with continuous dehumidification, the control module cuts off the frequency control loop based on the indoor temperature and enables a dynamic humidity difference frequency conversion modulation logic. The control module compares the indoor humidity with the set humidity to obtain a humidity control difference value, and dynamically adjusts the operating frequency of the cooling adjustment module according to the humidity control difference value. In the dehumidification mode with manual humidity setting, the set humidity is set within a manual dehumidification range value. In the dehumidification mode with continuous dehumidification, the set humidity is locked by the control module to a preset dehumidification value.

9. The air conditioning unit as described in claim 8, wherein, When the control module selects the dehumidification mode with manual humidity setting, and one of the following shutdown conditions is met, the control module executes the start-stop control to stop the refrigeration regulating module from operating: Condition 1: The indoor humidity is lower than the manual dehumidification range value; or Condition 2: The indoor temperature is lower than a safe low temperature limit value. When the control module selects the dehumidification mode with continuous dehumidification, and one of the following shutdown conditions is met, the control module executes the start-stop control to stop the refrigeration regulating module from operating: Condition 1: The indoor humidity is lower than the preset dehumidification value; or Condition 2: The indoor temperature is lower than the safe low temperature limit value.

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