Indoor detection temperature compensation control method for fresh air air conditioner

Abstract

The invention discloses a compensation control method for indoor detection temperature of a fresh air air conditioner, and relates to the technical field of fresh air air conditioners. Firstly, the operation state of the fresh air air conditioner is judged. When the fresh air air conditioner is in a state where the fresh air function is turned on and the fresh air conditioner is in a cooling or heating mode, the absolute value of the outdoor temperature and the indoor detection temperature is compared with a first preset value to determine whether to dynamically compensate the indoor detection temperature. The indoor detection temperature compensation formula is: compensation temperature = fresh air function turn-on time / compensation cycle * compensation value. According to the formula: indoor temperature = indoor detection temperature + min (compensation temperature, compensation boundary), the indoor temperature is dynamically calculated, thereby solving the problem of inaccurate indoor temperature of the fresh air air conditioner in the prior art. The invention is suitable for indoor temperature detection of the fresh air air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air air conditioners, and in particular to a fresh air air conditioner indoor detection temperature compensation control method. Background Art

[0002] At present, on the basis of the basic cooling and heating functions, more health and comfort functions of air conditioners are being continuously accepted by the market, among which the fresh air ventilation function is particularly obvious. Fresh air ventilation can effectively solve the disadvantage of worsening air quality due to closing the door during the traditional use of air conditioners, thereby improving the air quality of air conditioners while realizing the basic functions of cooling and heating.

[0003] Nowadays, most fresh air systems have independent air ducts. For cabinet fresh air air conditioners, fresh air is generally drawn into the room through the fresh air duct by turning on the fresh air motor to achieve the fresh air ventilation function. When the fresh air function is turned on during the cooling and heating process of the air conditioner, the indoor fan is turned on, which will cause the fresh air drawn into the room to be sucked into the air inlet side of the indoor air conditioner. In order to ensure the accuracy of the detected temperature, the indoor room temperature sensor is mostly arranged on the air inlet side of the air conditioner. In this way, when the temperature difference between indoor and outdoor reaches a certain level, the temperature of the outdoor air and indoor air will increase or decrease after mixing, affecting the accuracy of the room temperature detection. Especially when the fresh air motor is at low speed and the air conditioner motor is at high speed, it is more likely that the fresh air will not have time to diffuse and be sucked into the air inlet side of the air conditioner, resulting in the air conditioning control system being unable to accurately control and adjust the air conditioning capacity output, causing discomfort to consumers. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a fresh air air conditioner indoor detection temperature compensation control method to solve the problem of inaccurate fresh air air conditioner indoor temperature in the prior art.

[0005] The present invention solves the above technical problems by adopting a technical solution: a fresh air air conditioner indoor detection temperature compensation control method, comprising the following steps:

[0006] S01, after the fresh air air conditioner is turned on, determine whether the fresh air function is turned on. If not, the indoor temperature detection is not compensated; if turned on, execute S02;

[0007] S02, judging whether the air conditioner is in cooling or heating mode, if not, the indoor temperature detection is not compensated, if yes, entering S03;

[0008] S03, judging the relationship between the absolute value of the temperature difference between the outdoor temperature and the indoor detection temperature and the first preset value, if the absolute value of the temperature difference between the outdoor temperature and the indoor temperature is greater than or equal to the first preset value, then entering S04; otherwise, the indoor detection temperature is not compensated;

[0009] S04. If the fresh air motor is at a low windshield and the indoor fan motor is at a high windshield, the indoor detected temperature is compensated, and the compensation temperature = fresh air function on time / compensation cycle*compensation value;

[0010] S05. Compensate the indoor temperature, wherein the indoor temperature=indoor detection temperature+min(compensation temperature, compensation boundary).

[0011] Furthermore, the first preset value ranges from 10 to 25°C.

[0012] Furthermore, the compensation period ranges from 60 to 180 seconds.

[0013] Furthermore, the compensation value range is 0.05°C to 0.2°C.

[0014] Furthermore, the compensation boundary range is 1°C to 3°C.

[0015] Beneficial effects of the present invention: The indoor detection temperature compensation control method of the fresh air air conditioner of the present invention judges the operating status of the fresh air air conditioner. When the fresh air air conditioner is in the state where the fresh air function is turned on and is in the cooling or heating mode, it determines whether to dynamically compensate the indoor detection temperature by comparing the absolute values ​​of the outdoor temperature and the indoor detection temperature with the first preset value. The indoor detection temperature compensation formula is: compensation temperature = fresh air function turning on time / compensation cycle * compensation value, and according to the formula: indoor temperature = indoor detection temperature + min (compensation temperature, compensation boundary), the indoor temperature is dynamically calculated, thereby solving the problem of inaccurate indoor temperature of the fresh air air conditioner in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a flow chart of the indoor temperature compensation control method of the fresh air air conditioner of the present invention. DETAILED DESCRIPTION

[0017] The indoor temperature compensation control method of the fresh air air conditioner of the present invention is as follows Figure 1 As shown, the following steps are included:

[0018] S01, after the fresh air air conditioner is turned on, determine whether the fresh air function is turned on. If not, the indoor temperature detection is not compensated; if turned on, execute S02;

[0019] S02, judging whether the air conditioner is in cooling or heating mode, if not, the indoor temperature detection is not compensated, if yes, entering S03;

[0020] S03, judging the relationship between the absolute value of the temperature difference between the outdoor temperature and the indoor detection temperature and the first preset value, if the absolute value of the temperature difference between the outdoor temperature and the indoor temperature is greater than or equal to the first preset value, then entering S04; otherwise, the indoor detection temperature is not compensated;

[0021] Specifically, the first preset value ranges from 10 to 25°C, preferably 20°C.

[0022] S04. If the fresh air motor is at a low windshield and the indoor fan motor is at a high windshield, dynamic compensation is performed on the indoor detected temperature. The compensation temperature = fresh air function on time / compensation cycle*compensation value.

[0023] Specifically, for different fresh air motors, the speed corresponding to the low wind shield is different. Usually, the speed range of the fresh air motor corresponding to the low wind shield is: less than 800rpm. The indoor fan motor refers to the air outlet control motor of the air-conditioning indoor unit. For different indoor units, the speed of the indoor fan motor corresponding to the high wind shield is also different. Usually, the motor speed range corresponding to the high wind shield of the indoor fan motor is: greater than 1000rpm; dynamic compensation can be adopted at regular intervals, such as every 2 minutes, 3 minutes, etc. The compensation cycle range is 60 to 180 seconds, preferably 120 seconds, and the compensation value range is 0.05℃ to 0.2℃, preferably 0.1℃.

[0024] S05. Dynamically compensate the indoor temperature, wherein the indoor temperature=indoor detection temperature+min(compensation temperature, compensation boundary).

[0025] Specifically, min (compensation temperature, compensation boundary) is the minimum value of the compensation temperature and the compensation boundary. The compensation boundary range is 1° C. to 3° C., preferably 1.5° C. This method can prevent over-compensation.

Claims

1. A fresh air air conditioner indoor detection temperature compensation control method, characterized in that: The following steps are involved: S01, after the fresh air air conditioner is turned on, determine whether the fresh air function is turned on. If not, the indoor temperature detection is not compensated; if turned on, execute S02; S02, judging whether the air conditioner is in cooling or heating mode, if not, the indoor temperature detection is not compensated, if yes, entering S03; S03, judging the relationship between the absolute value of the temperature difference between the outdoor temperature and the indoor detection temperature and the first preset value, if the absolute value of the temperature difference between the outdoor temperature and the indoor detection temperature is greater than or equal to the first preset value, then entering S04; otherwise, the indoor detection temperature is not compensated; S04. If the fresh air motor is at a low windshield and the air outlet control motor of the air conditioner indoor unit is at a high windshield, dynamic compensation is performed on the indoor detected temperature, and the compensation temperature = fresh air function on time / compensation cycle*compensation value; S05. Dynamically compensate the indoor temperature, wherein the indoor temperature=indoor detection temperature+min(compensation temperature, compensation boundary).

2. The indoor detection temperature compensation control method of the fresh air air conditioner according to claim 1 is characterized in that: The first preset value ranges from 10 to 25°C.

3. The indoor detection temperature compensation control method of the fresh air air conditioner according to claim 1 is characterized in that: The compensation period ranges from 60 to 180 seconds.

4. The indoor detection temperature compensation control method of the fresh air air conditioner according to claim 1 is characterized in that: The compensation value range is 0.05°C to 0.2°C.

5. The indoor detection temperature compensation control method of fresh air air conditioner according to claim 1 is characterized in that: The compensation boundary range is 1°C to 3°C.

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