Variable frequency air conditioner humidity control method
By using a dew point temperature sensor and setting a constant to control the cooling capacity, the problem of poor accuracy of humidity sensors in household air conditioners is solved, and precise humidity control is achieved.
Patent Information
- Application Number
- CN202310653092.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-02
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2043-06-02
AI Technical Summary
Poor accuracy of the humidity sensor in the humidity control of household air conditioners leads to inaccurate humidity control.
A dew point temperature sensor is used to measure the indoor evaporator temperature. The cooling capacity is controlled by the difference between the set constant and the indoor set temperature, thereby achieving humidity control.
It improves the accuracy of humidity control, enabling the humidity to be maintained within a preset range.
Smart Images

Figure CN116499104B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of household air conditioning technology, specifically humidity control. Background Technology
[0002] Currently, due to the complexity of humidity-influencing factors and the poor accuracy of humidity sensors, there are no corresponding applications in the field of household air conditioning technology. Summary of the Invention
[0003] This invention addresses the issue of poor accuracy in humidity sensors found in the background technology by proposing the use of a temperature sensor to measure dew point temperature, thereby improving accuracy by an order of magnitude. Humidity is then controlled by using the difference between the dew point temperature and the air conditioner's set temperature.
[0004] The present invention provides a method for controlling humidity in a variable frequency air conditioner. The method involves setting an indoor temperature and collecting temperature data of the indoor evaporator based on a dew point sensor. The difference between the collected indoor evaporator temperature data and the set indoor temperature is compared with a preset constant (N). If the difference is less than the set constant (N), the cooling capacity is increased; otherwise, the cooling capacity is decreased. Detailed Implementation
[0005] Figure 1 These are the three steps of this invention.
[0006] The following will combine Figure 1 In this embodiment of the invention: a variable frequency air conditioner humidity control method, characterized by comprising the following steps: Step 1: turning on the unit and setting the indoor temperature to enter the temperature control mode, and collecting the temperature data of the indoor unit evaporator based on the dew point sensor; Step 2: calculating the difference between the collected indoor unit evaporator temperature data and the indoor set temperature; Step 3: comparing the difference between the evaporator temperature data and the indoor set temperature with a preset constant (N); if the difference is less than the preset constant (N): increasing the cooling capacity, and vice versa, decreasing the cooling capacity to control the humidity within the preset range.
[0007] The indoor temperature is set according to step 1, characterized in that its value is set and retained by the air conditioner remote control.
[0008] According to step 2, the difference between the collected indoor unit evaporator temperature data and the indoor set temperature is characterized by subtracting the evaporator temperature from the indoor set temperature.
[0009] According to the preset constant (N) in step 3, the following features are used: take a value range (6-12), compare the difference between the evaporator temperature data and the indoor set temperature with the preset constant (N); if it is less than the set constant (N): increase the cooling capacity, otherwise decrease the cooling capacity, and control the humidity within the preset range.
[0010] According to step 1, the dew point sensor collects data from the indoor unit evaporator. Its feature is that the dew point sensor can also be set at the air outlet of the indoor unit, and the constant (N)-1 is used.
[0011] According to step 1, the dew point sensor can also be what is known in the industry as an indoor, pipeline sensor, heat exchange sensor, evaporator sensor, etc.
[0012] According to the preset constant (N) in step 3, its characteristics are: taking a value range of (6-12), setting the preset constant (N) to 9, and controlling the humidity within the range of (45%-65%).
[0013] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A variable frequency air conditioner humidity control method, characterized by, Comprising: Step 1: Set indoor temperature to enter temperature control mode, and collect temperature data of indoor host evaporator based on dew point sensor; Step 2: Compare the difference between the collected temperature data of indoor host evaporator and the set indoor temperature with a preset constant N; Step 3: If the difference is less than the set constant N, increase the refrigerating capacity, otherwise, decrease the refrigerating capacity, and control the humidity within a preset range.
2. The variable frequency air conditioning humidity control method of claim 1, wherein: The set indoor temperature in step 1 is reserved by the air conditioner remote controller.
3. The variable frequency air conditioning humidity control method of claim 1, wherein: The preset constant N in step 2 has a value range of 6-12.
Citation Information
Patent Citations
Air-conditioner control method and control system
CN103512155A
Dehumidifying device for dew point temperature adjustment
CN113597531A