Air conditioner air outlet control method and device and fixed-frequency air conditioner

Abstract

The application discloses an air conditioner air outlet control method and device and a fixed-frequency air conditioner. The air conditioner air outlet control method comprises the following steps: when entering a refrigeration mode after starting, an actual outdoor environment temperature is acquired; according to the actual outdoor environment temperature, an external fan motor is controlled to operate at a preset initial rotating speed corresponding to the actual outdoor environment temperature; an actual indoor air outlet temperature is acquired, and the external fan motor is controlled to operate at a preset target rotating speed corresponding to the actual indoor air outlet temperature, so that the actual indoor air outlet temperature is maintained in a target range. The application can improve the comfort and reliability of the air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to an air conditioning air outlet control method, device, and fixed-frequency air conditioner. Background Technology

[0002] In some extreme operating conditions (high / low temperature), fixed-frequency air conditioners cannot adjust the output of the compressor, resulting in low air temperature of the indoor fan at low temperatures, which can easily lead to freezing and water leakage, triggering the protection mechanism and causing intermittent cooling. At high temperatures, the air temperature is high, reducing comfort and resulting in low reliability. Summary of the Invention

[0003] This application provides an air conditioning outlet control method, device, and fixed-frequency air conditioner, which can alleviate the problems of low comfort and low reliability of current fixed-frequency air conditioners.

[0004] This application provides an air conditioning outlet control method, which includes:

[0005] When the unit enters cooling mode after powering on, the actual outdoor ambient temperature is obtained.

[0006] Based on the actual outdoor ambient temperature, control the outdoor fan motor to run at a preset initial speed corresponding to the actual outdoor ambient temperature;

[0007] The system obtains the actual indoor air outlet temperature and controls the outdoor fan motor to run at a preset target speed corresponding to the actual indoor air outlet temperature, so that the actual indoor air outlet temperature is maintained within the target range.

[0008] In some embodiments of the air conditioning outlet control method, the outlet control method further includes:

[0009] The outdoor ambient temperature is pre-divided into N first temperature ranges, and the speed of the outdoor fan motor is set to N corresponding speed ranges according to the N first temperature ranges to form a first mapping relationship, where N is a positive integer greater than 1;

[0010] Set a corresponding initial speed for each speed range.

[0011] In some embodiments of the air conditioning outlet control method, the outlet control method further includes:

[0012] The indoor air outlet temperature is pre-divided into M second temperature ranges, and the speed of the outdoor fan motor is set to M preset speeds according to the M second temperature ranges to form a second mapping relationship, where M is a positive integer greater than 1; wherein, the M second temperature ranges are positively correlated with the M preset speeds.

[0013] In some embodiments of the air conditioning outlet control method, controlling the outdoor fan motor to operate at a preset initial speed corresponding to the actual outdoor ambient temperature includes:

[0014] Based on the actual outdoor ambient temperature, determine the first temperature range corresponding to the actual outdoor ambient temperature in the first mapping relationship;

[0015] Based on the first temperature range where the actual outdoor ambient temperature is located, obtain the speed range corresponding to the first temperature range, and after obtaining the initial speed corresponding to the speed range, use the initial speed as the preset initial speed corresponding to the actual outdoor ambient temperature.

[0016] The operation of the external fan motor is controlled according to the preset initial speed.

[0017] In some embodiments of the air conditioning outlet control method, obtaining the actual indoor outlet temperature and controlling the outdoor fan motor to operate at a preset target speed corresponding to the actual indoor outlet temperature further includes:

[0018] Based on the actual indoor air outlet temperature, determine the second temperature range corresponding to the actual indoor air outlet temperature in the second mapping relationship;

[0019] Based on the second temperature range where the actual indoor air outlet temperature is located, obtain the preset speed corresponding to the second temperature range, and use the preset speed as the preset target speed corresponding to the actual indoor air outlet temperature.

[0020] The operation of the external fan motor is controlled according to the preset target speed.

[0021] In some embodiments of the air conditioning outlet control method, obtaining the actual indoor outlet temperature specifically includes:

[0022] The actual indoor air temperature is obtained at preset intervals.

[0023] In some embodiments of the air conditioning air outlet control method, the air conditioning air outlet control method further includes:

[0024] Store the preset target rotation speed corresponding to the actual outdoor ambient temperature and the actual indoor air outlet temperature each time to form a third mapping relationship.

[0025] In some embodiments of the air conditioning air outlet control method, the air conditioning air outlet control method further includes:

[0026] Obtain the actual outdoor ambient temperature, and directly obtain the preset target rotation speed corresponding to the actual outdoor ambient temperature based on the actual outdoor ambient temperature and the third mapping relationship;

[0027] The operation of the external fan motor is controlled according to the preset target speed.

[0028] This application embodiment also provides an air conditioning outlet control device, including:

[0029] External fan motor;

[0030] The first temperature sensor is used to detect the actual outdoor ambient temperature.

[0031] The second temperature sensor is used to detect the actual indoor air outlet temperature.

[0032] The speed control module is connected to the outdoor fan motor, the first temperature sensor, and the second temperature sensor. The speed control module is used to execute the air conditioning outlet control method described above.

[0033] This application also provides a fixed-frequency air conditioner, including the aforementioned air conditioner air outlet control device.

[0034] This application provides an air conditioning outlet control method, device, and fixed-frequency air conditioner. The air conditioning outlet control method involves acquiring the actual outdoor ambient temperature upon startup and entering cooling mode. Based on this temperature, the outdoor fan motor is controlled to operate at a preset initial speed corresponding to the actual outdoor ambient temperature. Then, the actual indoor outlet temperature is acquired, and based on this temperature, the outdoor fan motor is controlled to operate at a preset target speed corresponding to the actual indoor outlet temperature, ensuring that the actual indoor outlet temperature is maintained within the target range. This application adjusts the outdoor fan motor speed according to the outdoor ambient temperature and the indoor outlet temperature to maintain the actual indoor outlet temperature, thereby improving comfort while avoiding intermittent cooling and thus improving the reliability of the air conditioner. Attached Figure Description

[0035] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0036] Figure 1 This is a flowchart illustrating the first embodiment of the air conditioning air outlet control method provided in this application.

[0037] Figure 2 This is a flowchart illustrating the second embodiment of the air conditioning air outlet control method provided in this application.

[0038] Figure 3 This is a flowchart illustrating step 200 of the air conditioning outlet control method provided in the embodiments of this application.

[0039] Figure 4 This is a flowchart illustrating step 300 of the air conditioning outlet control method provided in the embodiments of this application.

[0040] Figure 5This is a flowchart illustrating the third embodiment of the air conditioning outlet control method provided in this application.

[0041] Figure 6 This is a structural block diagram of an air conditioning outlet control device provided in an embodiment of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features thus defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] Please see Figure 1 This embodiment provides an air conditioning outlet control method, which includes:

[0045] 100. When the unit enters cooling mode after powering on, obtain the actual outdoor ambient temperature;

[0046] 200. Based on the actual outdoor ambient temperature, control the outdoor fan motor to operate at a preset initial speed corresponding to the actual outdoor ambient temperature;

[0047] 300. Obtain the actual indoor air outlet temperature, and control the outdoor fan motor to run at a preset target speed corresponding to the actual indoor air outlet temperature, so that the actual indoor air outlet temperature is maintained within the target range.

[0048] In the air conditioning outlet control method of this application, after the air conditioner is turned on and enters the cooling mode, the outdoor fan motor in the air conditioner will run at full speed for a period of time t. Then, the actual outdoor ambient temperature is acquired, and the outdoor fan motor is controlled to run at a preset initial speed corresponding to the actual outdoor ambient temperature to ensure that the outdoor fan motor enters the running state. Then, the actual indoor outlet temperature is acquired, and the outdoor fan motor is controlled to run at a preset target speed corresponding to the actual indoor outlet temperature to ensure that the actual indoor outlet temperature is maintained within the target range. This application adjusts the speed of the outdoor fan motor according to the outdoor ambient temperature and the indoor outlet temperature to maintain the actual indoor outlet temperature, thereby improving comfort while avoiding intermittent cooling of the air conditioner, and thus improving the reliability of the air conditioner.

[0049] Please see Figure 2 In some embodiments, the air outlet control method further includes:

[0050] 10. Pre-divide the outdoor ambient temperature into N first temperature ranges, and set the speed of the outdoor fan motor into N corresponding speed ranges according to the N first temperature ranges to form a first mapping relationship, where N is a positive integer greater than 1;

[0051] 20. Set a corresponding initial speed for each speed range.

[0052] In this embodiment, the relationship between outdoor ambient temperature and the speed of the outdoor fan motor, i.e., the first mapping relationship, is pre-stored. Then, during actual operation of the air conditioner, a preset initial speed is obtained based on the detected actual outdoor ambient temperature and the first mapping relationship to initially adjust the speed of the outdoor fan motor, ensuring its operational status. Specifically, the outdoor ambient temperature is pre-divided into N first temperature ranges, and the speed of the outdoor fan motor is set to corresponding N speed ranges based on these N first temperature ranges to form the first mapping relationship.

[0053] For example, if N is 4, the outdoor ambient temperature is divided into four temperature ranges: temperature range 1, temperature range 2, temperature range 3, and temperature range 4. The speed range corresponding to temperature range 1 is speed range 1, temperature range 2 corresponds to speed range 2, temperature range 3 corresponds to speed range 3, and temperature range 4 corresponds to speed range 4. At the same time, an initial speed is set for each speed range to facilitate the initial adjustment of the speed according to the actual outdoor ambient temperature, ensuring the operating status of the outdoor fan motor.

[0054] In some embodiments, the air outlet control method further includes: pre-dividing the indoor air outlet temperature into M second temperature ranges, and setting M preset speeds corresponding to the M second temperature ranges to form a second mapping relationship, where M is a positive integer greater than 1; wherein the M second temperature ranges and the M preset speeds are positively correlated. In this embodiment, the relationship between the indoor air outlet temperature and the outdoor fan motor speed is pre-stored to form a second mapping relationship, so as to adjust the outdoor fan motor speed according to the actual indoor air outlet temperature in the future.

[0055] As one example, if M is 5, the indoor air outlet temperature is divided into 5 temperature ranges from low to high, namely temperature range 01, temperature range 02, temperature range 03, temperature range 04 and temperature range 05; and 5 preset speeds are set for each of the 5 temperature ranges.

[0056] Specifically, for temperature range 01, the corresponding gear is P1, at which point the outdoor fan motor stops, i.e., the preset speed is S1 = 0; for temperature range 02, the corresponding gear is P2, at which point the outdoor fan motor downshifts from its original gear, for example, by 2%, and the preset speed is S2; for temperature range 03, the outdoor fan motor remains at its original gear, and the preset speed is S3; for temperature range 04, the outdoor fan motor upshifts from its original gear, for example, by 2%, and the preset speed is S4; for temperature range 05, the outdoor fan motor needs to run at full speed from its original gear, and the preset speed is S5.

[0057] Among them, the preset speeds S1, S2, S3, S4 to S5 show an increasing trend, and the five second temperature ranges also show an increasing trend. That is, when the air conditioner is used in a high-temperature environment, when the indoor air outlet temperature is high, the speed of the outdoor fan motor is increased to improve heat exchange, so that the air outlet temperature will not be too high when the air conditioner is under high load, thereby improving comfort. When the air conditioner is used in a low-temperature environment, when the indoor air outlet temperature is low, to avoid the easy occurrence of icing and water leakage from the indoor unit, the speed of the outdoor fan motor is reduced to increase the evaporation pressure, so that the air conditioner is less likely to trigger the protection mechanism to raise the air outlet temperature when under low load, and will not experience intermittent cooling, thereby improving comfort and the reliability of the air conditioner.

[0058] Please see Figure 3 In some embodiments, step 200 includes:

[0059] 210. Based on the actual outdoor ambient temperature, determine the first temperature range corresponding to the actual outdoor ambient temperature in the first mapping relationship;

[0060] 220. Based on the first temperature range where the actual outdoor ambient temperature is located, obtain the speed range corresponding to the first temperature range, and after obtaining the initial speed corresponding to the speed range, use the initial speed as the preset initial speed corresponding to the actual outdoor ambient temperature.

[0061] 230. Control the operation of the external fan motor according to the preset initial speed.

[0062] In this embodiment, after obtaining the actual outdoor ambient temperature, the system first determines which first temperature range the actual outdoor ambient temperature falls within. Then, it determines the corresponding rotational speed range for that first temperature range. Based on the rotational speed range, it determines the initial rotational speed corresponding to that range. Thus, based on a first mapping relationship, it determines the preset initial rotational speed corresponding to the actual outdoor ambient temperature. Finally, it controls the operation of the outdoor fan motor according to the preset initial rotational speed to ensure the normal operation of the outdoor fan motor. It should be noted that the initial rotational speed in this embodiment can be any rotational speed within the corresponding rotational speed range.

[0063] Please see Figure 4 In some embodiments, step 300 includes:

[0064] 310. Based on the actual indoor air outlet temperature, determine the second temperature range corresponding to the actual indoor air outlet temperature in the second mapping relationship;

[0065] 320. Based on the second temperature range where the actual indoor air outlet temperature is located, obtain the preset speed corresponding to the second temperature range, and use the preset speed as the preset target speed corresponding to the actual indoor air outlet temperature.

[0066] 330. Control the operation of the external fan motor according to the preset target speed.

[0067] In this embodiment, after obtaining the actual indoor air outlet temperature, the first step is to determine the second temperature range temperature corresponding to the actual indoor air outlet temperature in the second mapping relationship. Then, the preset speed corresponding to the second temperature range temperature is used as the preset target speed corresponding to the actual indoor air outlet temperature. Subsequently, the operation of the outdoor fan motor is controlled according to the preset target speed to achieve effective adjustment of the outdoor fan motor, so as to improve the comfort and reliability of the air conditioner.

[0068] In some embodiments, obtaining the actual indoor air outlet temperature specifically includes: obtaining the actual indoor air outlet temperature once at a preset interval; that is, after controlling the outdoor fan motor to run according to the preset initial temperature, the actual indoor air outlet temperature is obtained once at a preset interval, i.e., time t2, and then the outdoor fan motor speed is adjusted according to the actual indoor air outlet temperature, thereby realizing real-time adjustment of the outdoor fan motor speed, i.e., real-time adjustment of the indoor air outlet temperature, ensuring that the indoor air outlet temperature can be maintained within the target range, thereby improving comfort.

[0069] In some embodiments, the air conditioning outlet control method further includes: storing a preset target speed corresponding to the actual outdoor ambient temperature and the actual indoor outlet air temperature each time, to form a third mapping relationship. That is, in this embodiment, after adjusting the speed of the outdoor fan motor to the preset target speed each time based on the actual outdoor ambient temperature and the actual indoor outlet air temperature, the set of actual outdoor ambient temperature, actual indoor outlet air temperature, and preset target speed is stored. After the air conditioner has been running for a period of time, such as 1 or 2 years, a database can be formed, and a third mapping relationship can be established based on the database. Then, when the air conditioner is run again, the outdoor fan motor can be directly adjusted to the corresponding preset target speed according to the third mapping relationship, so as to shorten the adjustment stabilization time and achieve energy saving effect.

[0070] Please see Figure 5 Specifically, air conditioning outlet control methods also include:

[0071] 400. Obtain the actual outdoor ambient temperature, and directly obtain the preset target rotation speed corresponding to the actual outdoor ambient temperature based on the actual outdoor ambient temperature and the third mapping relationship;

[0072] 500. Control the operation of the external fan motor according to the preset target speed.

[0073] In this embodiment, when the air conditioner stores data corresponding to the third mapping relationship, after the air conditioner is turned on and enters the cooling operation process, the preset target speed can be obtained according to the actual outdoor ambient temperature and the third mapping relationship, and then the outdoor fan motor can be controlled to run according to the preset target speed, thereby shortening the adjustment and stabilization time and achieving energy saving effect.

[0074] Please see Figure 6This application also provides an air conditioning outlet control device, which includes an outdoor fan motor 11, a first temperature sensor 12, a second temperature sensor 13, and a speed control module 14. The speed control module 14 is electrically connected to the outdoor fan motor 11, the first temperature sensor 12, and the second temperature sensor 13. In this embodiment, the outdoor fan motor 11 is an AC motor. The first temperature sensor 12 is used to detect the actual outdoor ambient temperature, and the second temperature sensor 13 is used to detect the actual indoor outlet temperature. The speed control module 14 can obtain the actual outdoor ambient temperature and the actual indoor outlet temperature by directly reading the data from the first temperature sensor 12 and the second temperature sensor 13, so as to control the speed of the outdoor fan motor 11. Specifically, the speed control module 14 in this embodiment is used to execute the above-described air conditioning outlet control method. This application can change the output of a fixed-frequency air conditioner, so that the fixed-frequency air conditioner can use different extreme operating environments during cooling without entering a protection state, thus reducing comfort and reliability. Since the air conditioning outlet control method has been described in detail above, it will not be repeated here.

[0075] This application also provides a fixed-frequency air conditioner, which includes the air conditioner air outlet control device described above. Since the air conditioner air outlet control device has been described in detail above, it will not be repeated here.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] The air conditioning air outlet control method provided in the embodiments of this application has been described in detail above. Specific examples have been used in this article to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air conditioning outlet control method, characterized in that, The air conditioning outlet control method includes: When the unit enters cooling mode after powering on, the actual outdoor ambient temperature is obtained. Based on the actual outdoor ambient temperature, control the outdoor fan motor to run at a preset initial speed corresponding to the actual outdoor ambient temperature; The indoor air outlet temperature is pre-divided into M second temperature ranges from low to high, and the rotation speed of the outdoor fan motor is set to M preset rotation speeds according to the M second temperature ranges to form a second mapping relationship, where M is a positive integer greater than 1; wherein, the M second temperature ranges are positively correlated with the M preset rotation speeds. The actual indoor air outlet temperature is obtained at preset intervals. Based on the actual indoor air outlet temperature, a second temperature range corresponding to the actual indoor air outlet temperature in the second mapping relationship is determined. Based on the second temperature range in which the actual indoor air outlet temperature is located, a preset rotation speed corresponding to the second temperature range is obtained, and the preset rotation speed is used as the preset target rotation speed corresponding to the actual indoor air outlet temperature, so that the actual indoor air outlet temperature is maintained to the target range. Store the preset target rotation speed corresponding to the actual outdoor ambient temperature and the actual indoor air outlet temperature each time to form a third mapping relationship; obtain the actual outdoor ambient temperature, and directly obtain the preset target rotation speed corresponding to the actual outdoor ambient temperature according to the actual outdoor ambient temperature and the third mapping relationship; control the operation of the outdoor fan motor according to the preset target rotation speed.

2. The air conditioning outlet control method according to claim 1, characterized in that, The air conditioning outlet control method also includes: The outdoor ambient temperature is pre-divided into N first temperature ranges, and the rotational speed of the outdoor fan motor is set to N corresponding rotational speed ranges according to the N first temperature ranges to form a first mapping relationship, where N is a positive integer greater than 1; Set a corresponding initial speed for each of the aforementioned speed ranges.

3. The air conditioning outlet control method according to claim 2, characterized in that, The step of controlling the outdoor fan motor to operate at a preset initial speed corresponding to the actual outdoor ambient temperature includes: Based on the actual outdoor ambient temperature, determine the first temperature range corresponding to the actual outdoor ambient temperature in the first mapping relationship; Based on the first temperature range where the actual outdoor ambient temperature is located, obtain the rotation speed range corresponding to the first temperature range, and after obtaining the initial rotation speed corresponding to the rotation speed range, use the initial rotation speed as the preset initial rotation speed corresponding to the actual outdoor ambient temperature. The operation of the external fan motor is controlled according to the preset initial speed.

4. An air conditioning outlet control device, characterized in that, include: External fan motor; A first temperature sensor is used to detect the actual outdoor ambient temperature. The second temperature sensor is used to detect the actual indoor air outlet temperature. A speed control module is connected to the outdoor fan motor, the first temperature sensor, and the second temperature sensor, and the speed control module is used to execute the air conditioning air outlet control method as described in any one of claims 1-3.

5. A fixed-frequency air conditioner, characterized in that, Includes the air conditioning outlet control device as described in claim 4.

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