Air conditioner fresh air control method and device, storage medium and fresh air air conditioner

Abstract

The application provides a fresh air control method and device of an air conditioner, a storage medium and a fresh air air conditioner. The method comprises the following steps: acquiring an indoor environment temperature, an outdoor environment temperature and a set temperature; acquiring a first size relationship between the indoor environment temperature and the set temperature, and a second size relationship between the indoor environment temperature and the outdoor environment temperature; and synchronously controlling an air conditioner inner fan, an air conditioner compressor and a fresh air fan according to at least the first size relationship and the second size relationship, so that the indoor and outdoor loads are adapted to the fresh air volume and the difference between the indoor environment temperature and the set temperature after a preset time period is less than a preset difference. The problem of single fresh air mode is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioners, in particular to an air conditioner fresh air control method and device, a storage medium and a fresh air conditioner. BACKGROUND

[0002] With the gradual improvement of living standards, people's requirements for indoor environment are also getting higher and higher. Air conditioners that can perform heat and humidity treatment have been widely used. Traditional air conditioners adjust the temperature of air in a closed environment. Harmful gases and biological pollutants in the long-closed environment cannot be reasonably converted and diluted, and the content of carbon dioxide, VOCs, etc. is seriously over-standard, and the indoor air quality deteriorates, resulting in so-called "air conditioner disease". Household air conditioner users gradually require indoor fresh air, and air conditioners with fresh air function gradually enter people's field of vision. Fresh air conditioner usually adds a set of fresh air equipment on the basis of conventional air conditioner. The fresh air equipment dilutes the indoor polluted air by replacing indoor and outdoor air.

[0003] However, the fresh air control of the current fresh air conditioner is relatively simple, only providing several different rotating speed wind gears for user selection and adjustment, while most users are used to using only one fixed wind gear. SUMMARY

[0004] The main purpose of the present application is to provide an air conditioner fresh air control method, device, storage medium and fresh air conditioner to at least solve the problem of single fresh air control mode of the existing fresh air conditioner.

[0005] In order to achieve the above purpose, according to one aspect of the present application, an air conditioner fresh air control method is provided, comprising: acquiring indoor environment temperature, outdoor environment temperature and set temperature; acquiring the first size relationship of the indoor environment temperature and the set temperature, and the second size relationship of the indoor environment temperature and the outdoor environment temperature; at least according to the first size relationship and the second size relationship, synchronously controlling the air conditioner inner fan, the air conditioner compressor and the fresh air fan, so that the indoor and outdoor load is adapted to the fresh air volume and the difference between the indoor environment temperature and the set temperature after a preset time period is less than a preset difference.

[0006] According to another aspect of the present application, there is provided a fresh air control device for an air conditioner, comprising: a first obtaining unit configured to obtain an indoor environment temperature, an outdoor environment temperature and a set temperature; a second obtaining unit configured to obtain a first magnitude relationship between the indoor environment temperature and the set temperature, and a second magnitude relationship between the indoor environment temperature and the outdoor environment temperature; and a control unit configured to synchronously control an air conditioner indoor fan, an air conditioner compressor and a fresh air fan according to at least the first magnitude relationship and the second magnitude relationship, so that the indoor and outdoor loads are adapted to the fresh air volume and the difference between the indoor environment temperature and the set temperature is less than a preset difference after a preset time period.

[0007] According to another aspect of the present application, there is provided a computer readable storage medium comprising a stored program, wherein the computer readable storage medium performs any of the air conditioner fresh air control methods when the program is executed.

[0008] According to another aspect of the present application, there is provided a fresh air air conditioner, comprising: an air conditioner indoor fan; an air conditioner compressor; a fresh air fan, a fresh air duct and a regulating mechanism, the fresh air duct being connected to the air conditioner indoor fan through the regulating mechanism, the regulating mechanism being configured to regulate the fresh air volume, the fresh air fan being connected to the fresh air duct and configured to introduce outdoor air into the fresh air duct; and a controller configured to communicate with the air conditioner indoor fan, the air conditioner compressor, the fresh air fan and the regulating mechanism respectively and perform any of the air conditioner fresh air control methods.

[0009] According to the technical solution of the present application, the indoor environment temperature, the outdoor environment temperature and the set temperature are obtained, the first magnitude relationship between the indoor environment temperature and the set temperature and the second magnitude relationship between the indoor environment temperature and the outdoor environment temperature are obtained, and the air conditioner indoor fan, the air conditioner compressor and the fresh air fan are synchronously controlled according to at least the first magnitude relationship and the second magnitude relationship, so that the indoor and outdoor loads are adapted to the fresh air volume and the difference between the indoor environment temperature and the set temperature is less than a preset difference after a preset time period. The indoor environment temperature, the outdoor environment temperature and the set temperature are considered to control the air conditioner indoor fan, the air conditioner compressor and the fresh air fan, so that the control mode of the fresh air fan is rich and energy saving is achieved while meeting the fresh air demand of a user. BRIEF DESCRIPTION OF DRAWINGS

[0010] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application and are incorporated herein for a purpose of explanations and are not intended to limit the present application. In the drawings:

[0011] Figure 1A hardware structure block diagram of a mobile terminal for performing an air conditioner fresh air control method is shown in an embodiment of this application.

[0012] Figure 2 A schematic flowchart of an air conditioner fresh air control method according to an embodiment of this application is shown.

[0013] Figure 3 A flowchart illustrating the selection of a cooling fresh air mode according to an embodiment of this application is shown;

[0014] Figure 4 A logic diagram of a first cooling fresh air mode provided according to an embodiment of this application is shown;

[0015] Figure 5 A logic diagram of a second cooling fresh air mode provided according to an embodiment of this application is shown;

[0016] Figure 6 A logic diagram of a third cooling fresh air mode provided according to an embodiment of this application is shown;

[0017] Figure 7 A logic diagram of a fourth cooling fresh air mode provided according to an embodiment of this application is shown;

[0018] Figure 8 A flowchart illustrating the selection of heating fresh air mode according to an embodiment of this application is shown;

[0019] Figure 9 A logic diagram of a first heating fresh air mode provided according to an embodiment of this application is shown;

[0020] Figure 10 A logic diagram of a second heating fresh air mode provided according to an embodiment of this application is shown;

[0021] Figure 11 A logic diagram of a third heating fresh air mode provided according to an embodiment of this application is shown;

[0022] Figure 12 A logic diagram of a fourth heating fresh air mode provided according to an embodiment of this application is shown;

[0023] Figure 13 A schematic diagram of a room floor plan and a schematic diagram of a temperature sensor according to an embodiment of this application are shown.

[0024] Figure 14 An indoor ambient temperature variation curve is shown according to an embodiment of this application;

[0025] Figure 15 A graph showing the operating power and power consumption variation according to an embodiment of this application is provided.

[0026] Figure 16 A graph showing the variation of fresh air operating speed according to an embodiment of this application is provided;

[0027] Figure 17 A structural block diagram of an air conditioner fresh air control device according to an embodiment of this application is shown. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] As described in the background section, the fresh air control of existing fresh air conditioners is relatively simple, providing only a few different fan speeds for users to select and adjust. However, most users are accustomed to using only one fixed fan speed. To solve the problem of the relatively simple fresh air control mode of fresh air conditioners, the embodiments of this application provide a fresh air control method, device, storage medium, and fresh air conditioner.

[0032] Furthermore, existing fresh air conditioning systems have relatively simple fresh air control, offering only a few different fan speed settings for users to choose from. They cannot automatically adjust the fresh air volume based on indoor and outdoor load conditions, and most users are accustomed to using only one fixed fan speed. Excessive fresh air volume can place a higher load on the indoor air conditioning system in some situations. For example, in summer cooling mode, when the outdoor temperature is high, introducing a large amount of hot air into the room will increase the burden on the air conditioner, resulting in energy waste. However, in other situations, outdoor fresh air can be used to reduce the load on the air conditioner. For instance, in summer cooling mode, when the outdoor temperature is high but the indoor temperature is even higher (e.g., during transitional seasons between spring and summer, or summer and autumn, or when it is cool outdoors but crowded indoors, or in shopping mall areas), a large amount of fresh air can be used to cool the room in the early stages of cooling operation, while the fresh air volume can be reduced to minimum in the later stages to achieve energy savings.

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for an air conditioner fresh air control method according to an embodiment of the present invention. (See diagram below.) Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0035] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the air conditioner fresh air control method in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the aforementioned networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0036] This embodiment provides a method for controlling the fresh air of an air conditioner that runs on a mobile terminal, computer terminal, or similar computing device. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0037] Figure 2 This is a flowchart of an air conditioner fresh air control method according to an embodiment of this application. Figure 2 As shown, the method includes the following steps:

[0038] Step S201: Obtain the indoor ambient temperature, outdoor ambient temperature, and set temperature;

[0039] The indoor ambient temperature is detected by a temperature sensor installed indoors, and the outdoor ambient temperature is detected by a temperature sensor installed outdoors.

[0040] The set temperature is the expected temperature, i.e. the target temperature, such as 25℃, 26℃, 27℃, etc.

[0041] The set temperature can be a user-defined temperature.

[0042] Step S202: Obtain the first relationship between the indoor ambient temperature and the set temperature, and the second relationship between the indoor ambient temperature and the outdoor ambient temperature;

[0043] The first relationship between the indoor ambient temperature and the set temperature represents the time and energy required to adjust the indoor ambient temperature to the set temperature, i.e., the first relationship represents the difficulty of adjusting the indoor ambient temperature to the set temperature.

[0044] The second relationship between the indoor ambient temperature and the outdoor ambient temperature represents the magnitude of the difference between the indoor ambient temperature and the outdoor ambient temperature, i.e., the indoor-outdoor temperature difference; the indoor-outdoor temperature difference will affect the operation mode of the fresh air fan.

[0045] Step S203: Based at least on the first size relationship and the second size relationship, synchronously control the air conditioner's indoor fan, air conditioner compressor, and fresh air fan, so that the indoor and outdoor loads are matched with the fresh air volume and the difference between the indoor ambient temperature and the set temperature after a preset time period is less than a preset difference.

[0046] The above-mentioned indoor and outdoor load and fresh air volume matching indicator adjusts the fresh air volume according to different indoor and outdoor loads, so as to achieve energy saving while meeting the user's fresh air needs.

[0047] The preset time period is related to the first size relationship and the second size relationship. The adaptive adjustment makes the time for the indoor ambient temperature to be adjusted to the set temperature take into account both the indoor and outdoor load and the fresh air volume. That is, considering the needs of user comfort, it is necessary to control the difference between the indoor ambient temperature and the set temperature to be less than the preset difference within a short period of time, and this short period of time should not affect the relationship between the indoor and outdoor load and the fresh air volume too much.

[0048] The air conditioner fresh air control method of this application acquires indoor ambient temperature, outdoor ambient temperature, and a set temperature. It then obtains a first relationship between the indoor ambient temperature and the set temperature, and a second relationship between them. Based at least on the first and second relationships, it synchronously controls the air conditioner's indoor fan, compressor, and fresh air fan to ensure that the indoor and outdoor loads are matched with the fresh air volume, and that the difference between the indoor ambient temperature and the set temperature is less than a preset difference after a preset time period. By simultaneously considering the indoor ambient temperature, outdoor ambient temperature, and set temperature in controlling the air conditioner's indoor fan, compressor, and fresh air fan, the method provides a variety of control modes for the fresh air fan and achieves energy saving while meeting the user's fresh air needs.

[0049] In this embodiment of the application, the air conditioner's internal fan, air conditioner compressor, and fresh air fan are synchronously controlled at least according to the first size relationship and the second size relationship, including:

[0050] Obtain the set operating mode, wherein the set operating mode is either a cooling operating mode or a heating operating mode;

[0051] Based on the set operating mode, the first size relationship, and the second size relationship, the air conditioner's internal fan, the air conditioner compressor, and the fresh air fan are synchronously controlled.

[0052] In other words, while controlling the air conditioner's internal fan, the air conditioner's compressor, and the fresh air fan, the operating mode is comprehensively considered to achieve more precise control.

[0053] In this embodiment of the application, the synchronous control of the air conditioner's indoor fan, the air conditioner's compressor, and the fresh air fan, based on the set operating mode, the first size relationship, and the second size relationship, includes at least one of the following:

[0054] When the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the first cooling fresh air mode.

[0055] When the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the second cooling fresh air mode.

[0056] When the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the third cooling fresh air mode.

[0057] When the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the fourth cooling fresh air mode.

[0058] The flowcharts for distinguishing the four cooling and fresh air modes under cooling operation are as follows: Figure 3 As shown, Figure 3 China T 内环 Indicates indoor ambient temperature, T 外环 Indicates the outdoor ambient temperature, T 设定 This indicates the set temperature. When T is met... 内环 >T 设定 And does not satisfy T 内环 ≥T 外环 When T is met, it enters the first cooling and fresh air mode; when T is met, it enters the first cooling and fresh air mode. 内环 >T 设定 And satisfy T 内环 ≥T 外环 When T is not met, it enters the second cooling and fresh air mode; when T is not met, it enters the second cooling and fresh air mode. 内环 >T 设定 And satisfy T 内环 ≥T 外环 When T is not met, it enters the third cooling and fresh air mode; when T is not met, it enters the third cooling and fresh air mode. 内环 >T 设定 And does not satisfy T 内环 ≥T 外环 At that time, it enters the fourth cooling and fresh air mode;

[0059] Of course, the four cooling and fresh air modes mentioned above are merely examples, and more types of modes can be further divided. For example, more refined ranges can be defined based on the range in which the indoor ambient temperature is less than or equal to the set temperature, and the range in which the indoor ambient temperature is greater than or equal to the outdoor ambient temperature.

[0060] The specific control logic of the four cooling and fresh air modes is explained below:

[0061] Controlling the air conditioner's indoor fan, compressor, and fresh air fan according to the first cooling fresh air mode includes: controlling the indoor fan to start operation, controlling the compressor to start cooling operation, and controlling the fresh air fan to start operation at a lower speed limit, wherein the lower speed limit is the operating speed of the fresh air fan to maintain the minimum requirement of the human body for fresh air; specifically, as shown... Figure 4 As shown, X min Indicates the lower limit of the rotational speed;

[0062] The function description of the first cooling fresh air mode is as follows: If T is satisfied... 内环 >T 设定 If the indoor ambient temperature is higher than the set temperature, cooling is required, so the compressor and its internal fan need to be started for cooling. If the T value is not met at the same time... 内环 ≥T 外环 This indicates that the indoor ambient temperature is lower than the outdoor ambient temperature, meaning the temperature sequence is T.外环 >T 内环 >T 设定 The outdoor temperature is too high to cool the indoor air using outdoor air, so the fresh air is set to the lowest speed X. min Start the system and activate the minimum fresh air volume to maintain the body's need for fresh air, reduce the load on the air conditioner, and achieve energy saving.

[0063] Controlling the indoor fan, compressor, and fresh air fan of the air conditioner according to the second cooling fresh air mode includes: controlling the indoor fan to start operation, controlling the compressor to start cooling operation, and controlling the fresh air fan to start operation at a maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; after controlling the indoor fan, compressor, and fresh air fan for a first preset time period, acquiring the indoor and outdoor ambient temperatures again in real time, and maintaining the current operating state if the indoor ambient temperature is greater than or equal to the outdoor ambient temperature, and otherwise... When the outdoor ambient temperature is equal to the indoor ambient temperature, the indoor ambient temperature is acquired again in real time, and the rate of temperature drop is also acquired. The current operating state is maintained when the rate of temperature drop meets a first preset condition, whereby the rate of temperature drop is greater than or equal to a preset rate of temperature drop throughout a second preset time period. If the rate of temperature drop does not meet the first preset condition, the speed of the fresh air fan is reduced until it reaches a lower speed limit, maintaining the current operating state. The lower speed limit is the operating speed at which the fresh air fan maintains the minimum fresh air requirement for the human body. Specifically, as shown... Figure 5 As shown, Figure 5 The inner ring of T represents the indoor ambient temperature, the outer ring of T represents the outdoor ambient temperature, and T setting represents the set temperature. The second preset time period is set to 5 minutes. A preset represents the preset temperature drop rate, and A represents the temperature drop rate.

[0064] (1) When entering the second cooling and fresh air mode, control the indoor fan to start running; the compressor to start cooling operation; the fresh air starts running at speed Xmax; (2) Detect T 内环 T 外环 (3) If T is satisfied 内环 ≥T 外环 If the current operating state is maintained, then proceed to step (4); (4) Detect T 内环 (5) If A≥A is satisfied for 5 consecutive minutes, record the current A at all times; 预设 If the current operating state is maintained, the fresh air speed will be reduced by Y; (6) After the fresh air speed is reduced, if X = Xmin If A ≥ A for 5 consecutive minutes, then maintain the current running state; if not, return to step (4); (7) If A ≥ A for 5 consecutive minutes, then maintain the current running state. 预设 If the current operating state is maintained, the fresh air speed will be reduced by Y again; (8) This cycle continues until X = X is satisfied. min Maintain the current operating state; or, satisfy A≥A for 5 consecutive minutes. 预设 To maintain the current operating state.

[0065] The function of the second cooling fresh air mode is explained as follows: If T is satisfied... 内环 >T 设定 This indicates that the indoor ambient temperature is higher than the set temperature and cooling is required. Therefore, the compressor and its internal fan need to be started for cooling operation. If T is also met at the same time... 内环 ≥T 外环 This indicates that the indoor temperature is higher than the outdoor temperature, while the outdoor temperature is lower. Outdoor air can be used to supplement the indoor cooling, therefore the fresh air is set to its highest rotation speed X. max Upon startup, the system activates its maximum fresh air volume, providing users with fresh air while further cooling the indoor environment, reducing the air conditioning load and achieving energy savings. After the air conditioning and fresh air system are activated, the indoor temperature will begin to drop. The temperature will be monitored by temperature (T). 内环 T 外环 If T is satisfied 内环 ≥T 外环 This indicates that the current indoor temperature is still higher than the outdoor temperature, and outdoor fresh air can still be used to supplement indoor cooling. Therefore, the current operating state will remain unchanged until the indoor temperature drops below the outdoor temperature. Once the indoor temperature drops below the outdoor temperature, the indoor temperature will be detected and the value A will be calculated. A is the temperature drop rate, which is the difference between the indoor temperature at the previous minute and the current indoor temperature, i.e., A = T. 内环(i-1) -T 内环i The rate of temperature drop, A, characterizes the effect of the current indoor temperature drop. If A ≥ A for 5 consecutive minutes... 预设 This indicates that the current temperature drop effect is good, so the current operating state should be maintained; if the condition is not met (A≥A within 5 minutes), then the current operating state should be maintained. 预设 This indicates that the current indoor temperature drop rate is too slow and needs to be accelerated. Adjustments are needed to speed up the cooling process, so the fresh air intake fan speed should be reduced by Y rpm (Note: At this point, the actual operating speed of the fresh air intake fan is X = X). max -Y), reduce the load on the air conditioner from the fresh air; after the speed is reduced, detect the indoor ambient temperature again and calculate the value of A at this time. If A≥A is satisfied after 5 minutes... 预设 This indicates that the current temperature drop effect has improved after the fresh air speed was reduced. Therefore, the current operating state should be maintained. If the condition of A≥A is still not met within 5 minutes, then... 预设This indicates that the current temperature reduction effect has not improved after reducing the fresh air speed. Therefore, the fresh air speed will be reduced again by Y rpm (Note: At this time, the actual operating speed of the fresh air is X = X). max -2Y), and repeat this cycle until the temperature drop rate meets the preset value, or the fresh air speed has been reduced to the minimum speed X. min .

[0066] Controlling the indoor fan, compressor, and fresh air fan of the air conditioner according to the third cooling fresh air mode includes: controlling the indoor fan to start operation, controlling the compressor to stop operation, and controlling the fresh air fan to start operation at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; specifically, as shown... Figure 6 As shown, X max This indicates the upper limit of the rotational speed.

[0067] The function description of the third cooling and fresh air mode is as follows: If T does not meet the requirements... 内环 >T 设定 This indicates that the indoor ambient temperature is lower than the set temperature and cooling is not required; therefore, the compressor does not need to be started for cooling. Since the user is using cooling mode, the air conditioner's internal fan should be turned on to maintain air circulation and recirculate indoor air. If T also meets the following conditions... 内环 ≥T 外环 This indicates that the indoor ambient temperature is higher than the outdoor ambient temperature, meaning the temperature sequence is T. 设定 ≥T 内环 ≥T 外环 The fresh air is circulated at its highest speed X max The system starts operating at maximum fresh air volume to provide users with optimal fresh air. Because the outdoor ambient temperature is at its lowest at this time, the indoor temperature drops due to the incoming outdoor fresh air, eventually reaching the same level as the outdoor ambient temperature.

[0068] Controlling the air conditioner's indoor fan, compressor, and fresh air fan according to the fourth cooling fresh air mode includes: controlling the indoor fan to start operation, controlling the compressor to stop operation, and controlling the fresh air fan to start operation at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; after controlling the indoor fan, compressor, and fresh air fan for a first preset time period, the outdoor ambient temperature and set temperature are acquired again in real time, and the current operation is maintained if the outdoor ambient temperature is lower than the set temperature; if the outdoor ambient temperature is not lower than the set temperature, the indoor ambient temperature and set temperature are acquired again in real time, and the current operation is maintained if the indoor ambient temperature is lower than the set temperature; if the indoor ambient temperature is not lower than the set temperature, the speed of the fresh air fan is adjusted to its minimum speed limit, wherein the minimum speed limit is the operating speed of the fresh air fan to maintain the minimum human body's need for fresh air. Specifically, as follows... Figure 7 As shown, it includes:

[0069] (1) When entering the fourth cooling fresh air mode, the indoor fan is started; the compressor is not started; the fresh air is introduced at a speed of X. max Start running; (2) Detect T 外环 T 设定 (3) If T is not satisfied 外环 ≥T 设定 If the current operating state is maintained, then the current operating state is maintained; otherwise, T is checked. 内环 T 设定 (4) If T is not satisfied 内环 ≥T 设定 If the current operating state is maintained, then the fresh air speed is adjusted to X. min .

[0070] The function description of the fourth cooling fresh air mode is as follows: If T is not met... 内环 >T 设定 This indicates that the indoor ambient temperature is lower than the set temperature and cooling is not required; therefore, the compressor does not need to be started for cooling. Since the user is using cooling mode, the air conditioner's internal fan should be turned on to maintain air circulation and recirculate indoor air. If T is not met at the same time... 内环 ≥T 外环 This indicates that the indoor ambient temperature is lower than the outdoor ambient temperature, while the outdoor ambient temperature is higher. Since the set temperature is currently higher, and the indoor ambient temperature is lower than the set temperature, the fresh air is being circulated at its highest speed (X). max Start-up operation with maximum fresh air volume to provide users with optimal fresh air. After the fresh air system is activated, due to the higher outdoor temperature, the indoor temperature will gradually rise as fresh air is introduced. (T is then monitored.)外环 T 设定 If T is not satisfied 外环 ≥T 设定 That is, the temperature sequence at this time is T. 设定 >T 外环 >T 内环 The set temperature is at its highest. The indoor temperature rises to the highest possible temperature due to the incoming outdoor fresh air, which is still lower than the outdoor ambient temperature, thus maintaining the current operating state. If T is satisfied... 外环 ≥T 设定 That is, the temperature sequence at this time is T. 外环 ≥T 设定 >T 内环 The outdoor ambient temperature is the highest, and the indoor temperature may rise to a higher level than the set temperature due to the intake of fresh outdoor air. Therefore, the temperature T is measured. 内环 T 设定 When the indoor ambient temperature is lower than the set temperature, maintain the current operating status; when the indoor ambient temperature is higher than or equal to the set temperature, adjust the fresh air speed to the lowest speed X. min This is to reduce the impact on indoor ambient temperature.

[0071] Regarding the settings in heating mode, based on the set operating mode, the first size relationship, and the second size relationship, the air conditioner's internal fan, the air conditioner compressor, and the fresh air fan are synchronously controlled, including at least one of the following:

[0072] When the set operating mode is the heating operating mode, the first magnitude relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second magnitude relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the first heating fresh air mode.

[0073] When the set operating mode is the heating operating mode, the first magnitude relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second magnitude relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the second heating fresh air mode.

[0074] When the set operating mode is the heating operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the third heating fresh air mode.

[0075] When the set operating mode is the heating operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature, the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan are controlled according to the fourth heating fresh air mode.

[0076] Specifically, such as Figure 8 As shown, it includes: (1) when the user sets it to heating mode, detecting T 内环 T 设定 T 外环 (2) When T is satisfied 内环 >T 设定 And does not satisfy T 内环 ≥T 外环 When T is met, the first heating fresh air mode is entered; (3) when T is met, the first heating fresh air mode is entered. 内环 >T 设定 And satisfy T 内环 ≥T 外环 When the second heating fresh air mode is not met; (4) when T is not met 内环 >T 设定 And satisfy T 内环 ≥T 外环 When the third heating fresh air mode is entered; (5) when T is not met 内环 >T 设定 And does not satisfy T 内环 ≥T 外环 At that time, it enters the fourth heating and fresh air mode.

[0077] The control logic for the four heating and fresh air modes is explained in detail below:

[0078] Controlling the indoor fan, compressor, and fresh air fan of the air conditioner according to the first heating and fresh air mode includes: controlling the indoor fan to not start, controlling the compressor to not start, and controlling the fresh air fan to start at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; specifically as follows... Figure 9 As shown, when entering the first heating and fresh air mode, the indoor fan does not start; the compressor does not start; and the fresh air is controlled at a speed of X. max Start running.

[0079] The functional description of the first heating and fresh air mode is as follows: If T is satisfied... 内环 >T 设定 This indicates that the indoor ambient temperature is higher than the set temperature, and no further heating is needed; therefore, the compressor does not need to be started for heating. Since the user is using heating mode, they are more sensitive to the feeling of normal temperature airflow in winter, so the air conditioner's indoor fan will not be turned on. If T is not simultaneously met... 内环 ≥T外环 This indicates that the indoor ambient temperature is lower than the outdoor ambient temperature, meaning the temperature sequence is T. 外环 >T 内环 >T 设定 The fresh air is circulated at its highest speed X max The system starts operating at maximum fresh air volume to provide users with optimal fresh air. Since the outdoor ambient temperature is at its highest at this time, the indoor temperature rises due to the incoming outdoor fresh air, eventually reaching at least the same as the outdoor ambient temperature.

[0080] Controlling the air conditioner's indoor fan, compressor, and fresh air fan according to the second heating and fresh air mode includes: controlling the air conditioner's indoor fan to not start, controlling the air conditioner's compressor to not start, and controlling the fresh air fan to start operating at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; after controlling the air conditioner's indoor fan, compressor, and fresh air fan for a first preset time period, the outdoor ambient temperature and set temperature are acquired again in real time, and the current operating state is maintained if the outdoor ambient temperature is greater than or equal to the set temperature; if the outdoor ambient temperature is not greater than or equal to the set temperature, the indoor ambient temperature and set temperature are acquired again in real time, and the current operating state is maintained if the indoor ambient temperature is greater than or equal to the set temperature; if the indoor ambient temperature is not greater than or equal to the set temperature, the speed of the fresh air fan is adjusted to its minimum speed limit, wherein the minimum speed limit is the operating speed of the fresh air fan to maintain the minimum human body's need for fresh air; specifically as follows... Figure 10 As shown, (1) when entering the second heating fresh air mode, the indoor fan does not start; the compressor does not start; the fresh air is controlled at a speed of X max Start running (2) Detect T 外环 T 设定 (3) If T is satisfied 外环 ≥T 设定 If the condition is met, the current operating state will be maintained; otherwise, T will be checked. 内环 T 设定 (4) If T is satisfied 内环 ≥T 设定 If the current operating state is met, then maintain the current operating state; otherwise, adjust the fresh air speed to X. min .

[0081] The function description of the second heating and fresh air mode is as follows: If T is satisfied... 内环 >T 设定This indicates that the indoor ambient temperature is higher than the set temperature, and no further heating is needed; therefore, the compressor does not need to be started for heating. Since the user is using heating mode, they are more sensitive to the feeling of normal temperature airflow in winter, so the air conditioner's indoor fan will not be turned on. If T also meets the following conditions... 内环 ≥T 外环 This indicates that the indoor ambient temperature is higher than the outdoor ambient temperature, while the outdoor ambient temperature is lower. Since the set temperature is currently lower, and the indoor ambient temperature is higher than the set temperature, the fresh air is being circulated at its highest speed (X). max Start-up operation, activating maximum fresh air volume to provide users with optimal fresh air. After the fresh air system is activated, due to the lower outdoor temperature, the indoor temperature will gradually decrease as fresh air is introduced. (T is then monitored.) 外环 T 设定 If T is satisfied 外环 ≥T 设定 That is, the temperature sequence at this time is T. 内环 ≥T 外环 ≥T 设定 The set temperature is at its lowest. The indoor temperature drops to the lowest possible temperature due to the incoming outdoor fresh air, which is still higher than the outdoor ambient temperature, thus maintaining the current operating state. If T does not meet this requirement... 外环 ≥T 设定 That is, the temperature sequence at this time is T. 内环 >T 设定 >T 外环 The outdoor ambient temperature is the lowest, and the indoor temperature may drop below the set temperature due to the incoming outdoor fresh air. Therefore, the temperature of the room may be lower than the set temperature when the outdoor ambient temperature is at its lowest. 内环 T 设定 When the indoor ambient temperature is higher than or equal to the set temperature, maintain the current operating status; when the indoor ambient temperature is lower than the set temperature, adjust the fresh air speed to the lowest speed X. min This is to reduce the impact on indoor ambient temperature.

[0082] Controlling the air conditioner's indoor fan, compressor, and fresh air fan according to the third heating and fresh air mode includes: controlling the indoor fan to start operation, controlling the compressor to start heating, and controlling the fresh air fan to start operation at a lower speed limit, wherein the lower speed limit is the operating speed of the fresh air fan to maintain the minimum requirement of fresh air for the human body. Specifically, as follows... Figure 11 As shown, when entering the third heating and fresh air mode, the indoor fan starts running; the compressor starts heating operation; and fresh air is introduced at a speed of X. min Start running.

[0083] The functional description of the third heating and fresh air mode is as follows: If T does not meet the requirements... 内环 >T 设定This indicates that the indoor ambient temperature is lower than the set temperature and needs to be raised. Therefore, the compressor and its internal fan need to be started for heating. If T is also met at the same time... 内环 ≥T 外环 This indicates that the indoor ambient temperature is higher than the outdoor ambient temperature, meaning the temperature sequence is T. 设定 ≥T 内环 ≥T 外环 Since the outdoor ambient temperature is the lowest, it is impossible to use outdoor air to raise the indoor temperature. Therefore, the fresh air is operated at the lowest speed X. min Start the system and activate the minimum fresh air volume to maintain the body's need for fresh air, reduce the load on the air conditioner, and achieve energy saving.

[0084] Controlling the air conditioner's indoor fan, compressor, and fresh air fan according to the fourth heating and fresh air mode includes: controlling the indoor fan to start operation, controlling the compressor to start heating operation, and controlling the fresh air fan to start operation at the upper speed limit; after controlling the indoor fan, compressor, and fresh air fan for the first preset time period, acquiring the indoor and outdoor ambient temperatures in real time again, and maintaining the current operating state if the indoor ambient temperature is lower than the outdoor ambient temperature; if the indoor ambient temperature is not lower than the outdoor ambient temperature, acquiring the indoor ambient temperature and its temperature rise rate in real time again, and maintaining the current operating state if the temperature rise rate meets a second preset condition, whereby the temperature rise rate is greater than or equal to a preset temperature rise rate throughout the second preset time period; if the temperature rise rate does not meet the second preset condition, controlling the speed of the fresh air fan to decrease until it reaches the lower speed limit, and maintaining the current operating state. Specifically, as follows... Figure 12 As shown,

[0085] (1) When entering the fourth heating and fresh air control mode, the internal fan starts running; the compressor starts heating operation; and the fresh air is supplied at a speed of X. max Start running; (2) Detect T 内环 T 外环 (3) If T is not satisfied 内环 ≥T 外环 If the current running state is maintained, then proceed to step (4); (4) Detect T 内环 (5) If B≥B is satisfied for 5 consecutive minutes, and the current B is recorded at all times; 预设 If the current operating state is maintained, the fresh air speed will be reduced by Y; (6) After the fresh air speed is reduced, if X = X minIf the current running state is maintained, then the current running state is maintained; if not, then return to step (4); (7) if B≥B is satisfied for 5 consecutive minutes. 预设 If the current operating state is maintained, the fresh air speed will be reduced by Y again; (8) This cycle continues until X = X is satisfied. min Maintain the current operating state; or, satisfy B≥B for 5 consecutive minutes. 预设 To maintain the current operating state.

[0086] The function description of the fourth heating and fresh air mode is as follows:

[0087] If T is not satisfied 内环 >T 设定 This indicates that the indoor ambient temperature is lower than the set temperature and needs to be raised. Therefore, the compressor and its internal fan need to be started for heating. If the T value is not met at the same time... 内环 ≥T 外环 This indicates that the indoor temperature is lower than the outdoor temperature, and outdoor air can be used to supplement the indoor temperature. Therefore, the fresh air is set to its highest rotation speed X. max Upon startup, the system activates its maximum fresh air volume, providing users with fresh air while simultaneously raising the indoor temperature, reducing the air conditioning load and achieving energy savings. After the air conditioning and fresh air system are activated, the indoor temperature will begin to rise; the temperature will be monitored (T). 内环 T 外环 If T is not satisfied 内环 ≥T 外环 This indicates that the current indoor temperature is still lower than the outdoor temperature, and outdoor fresh air can still be used to supplement the indoor temperature. Therefore, the current operating state will remain unchanged until the indoor temperature rises above the outdoor temperature. Once the indoor temperature rises above the outdoor temperature, the indoor temperature will be detected and the B value will be calculated. B is the rate of temperature rise, which is the difference between the current indoor temperature and the indoor temperature at the previous minute, i.e., B = T. 内环i -T 内环(i-1) The rate of temperature rise, B, characterizes the effect of the current indoor temperature rise. If B ≥ B for 5 consecutive minutes... 预设 This indicates that the current temperature rise effect is good, so the current operating state should be maintained; if the condition of B≥B is not met within 5 minutes, then the current operating state should be maintained. 预设 This indicates that the current indoor temperature rise rate is too slow and needs to be accelerated. Adjustments are needed to speed up the temperature rise, which means reducing the fresh air intake fan speed by Y rpm (Note: At this time, the actual operating speed of the fresh air intake fan is X = X). max -Y), reduce the load on the air conditioner from the fresh air; after the speed is reduced, detect the indoor ambient temperature again and calculate the B value at this time. If B≥B is satisfied after 5 minutes... 预设 This indicates that the current temperature rise effect has improved after the fresh air speed is reduced. Therefore, the current operating state should be maintained. If the condition of B≥B is still not met within 5 minutes, the following applies: 预设This indicates that the current temperature rise effect has not improved after the fresh air speed was reduced. Therefore, the fresh air speed will be reduced again by Y rpm (Note: At this time, the actual operating speed of the fresh air is X = X). max -2Y), and repeat this cycle until the temperature rise rate meets the preset value, or the fresh air speed has been reduced to the minimum speed X. min .

[0088] The parameters are explained below:

[0089] T 内环 T 外环 —Indoor ambient temperature and outdoor ambient temperature, unit: ℃, this value is the measured value.

[0090] T 设定 —User sets the indoor ambient temperature, in °C. The typical settable range is 16–30 °C. This value is the measured value.

[0091] X — Fresh air fan speed, unit: rpm, the range is 300~2000rpm.

[0092] X max —The maximum permissible operating speed of the fresh air fan is in rpm, with one possible value being 2000 rpm.

[0093] X min —The operating speed of the fresh air fan can maintain the minimum requirement of the human body for fresh air, that is, the lower limit of the permissible operating speed, in rpm, one of which can be 500 rpm.

[0094] A—Indoor ambient temperature drop rate, unit: ℃ / min, A=T 内环(i-1) -T 内环i That is, the indoor ambient temperature at the previous minute minus the current indoor ambient temperature; this value is the detected value.

[0095] A 预设 —Indoor ambient temperature preset temperature drop rate, unit: ℃ / min, one of the possible values ​​is 0.25℃ / min.

[0096] Y – Reduction in fresh air fan speed. Dimension: rpm, one possible value is 200rpm.

[0097] B—Indoor ambient temperature rise rate, unit: ℃ / min, B=T 内环i -T 内环(i-1) This is the current indoor ambient temperature minus the indoor ambient temperature 1 minute ago; this value is the measured value.

[0098] B 预设—Indoor ambient temperature preset temperature rise rate, unit: ℃ / min, one of the possible values ​​is 0.35℃ / min.

[0099] The solution proposed in this application can adjust the fresh air volume according to different indoor and outdoor loads, achieving energy savings while meeting the user's fresh air needs. By detecting the indoor ambient temperature, outdoor ambient temperature, and set temperature, the relationship between these three factors is determined to identify the current control mode. Under different control modes, the speed of the air conditioner's internal fan, compressor, and fresh air unit is controlled using different control methods to achieve energy savings in fresh air operation under different seasonal conditions.

[0100] The following example illustrates its energy-saving effect under a specific operating condition:

[0101] An experimental test was conducted using a 3-horsepower floor-standing room air conditioner with a fresh air function. The parameter value was: X max =2000rpm, X min =500rpm, A 预设 =0.25℃ / min, B 预设 =0.35℃ / min, Y=200rpm.

[0102] Experimental test room and temperature sensor layout as follows Figure 13 As shown.

[0103] (Note 1: Room area 47.16m²) 2 (Length 6.8m, Width 5.2m, Height 2.8m), the walls and floor are made of insulated panels. Air conditioner placement is as follows... Figure 13 As shown.

[0104] (Note 2: Room temperature sensor layout description: Vertical direction: The first measuring point is 0.1m above the ground, simulating the height of a human ankle. A measuring point is placed every 0.3m, for a total of 7 measuring points, covering more than 90% of the human activity area; Horizontal width direction: No temperature measuring points are placed in non-residential areas away from walls. Measuring points are placed starting 0.5m from the wall, spaced 0.7m apart, arranged in 7 rows (1-7) across the width direction. Horizontal length direction: No temperature measuring points are placed in non-residential areas away from walls. Measuring points are placed starting 1m from the wall, with 6 rows (A-F) of temperature sensors spaced 0.7m, 0.7m, 2m, 0.7m, 0.7m respectively. A total of 294 temperature sensors are installed in the room, such as...) Figure 13 As shown.

[0105] Test Method: Rated voltage was used. Operating conditions: indoor temperature 35℃, outdoor temperature 25℃. After the operating conditions stabilized, the cooling mode was set. The indoor unit was turned off simultaneously with the air conditioner's startup. The air conditioner was set to its highest fan speed at 16℃, with the air guide vanes and air sweepers adjusted to their default settings. Fresh air intake was enabled, and the cooling temperature drop test began. Data was collected starting when the air conditioner was turned on and continued for 20 minutes to conclude the test. The temperature sensor recorded one set of data every minute.

[0106] Using the same testing method, experiments were conducted on the fixed-speed fresh air supply scheme (conventional scheme) and the variable fresh air volume control method of this invention (control proposed in this invention). Indoor ambient temperature, operating power, power consumption, and fresh air operating speed were recorded every minute. The recorded data were then processed and plotted into curves: curves showing changes in indoor ambient temperature, operating power, and power consumption.

[0107] As a curve Figure 14 As shown in the diagram, the dashed line represents the indoor average temperature change curve using the conventional control method, while the solid line represents the indoor average temperature curve using the control method proposed in this paper. The curve comparison demonstrates that the indoor temperature reduction effect is superior to that of the conventional control method when the variable fresh air volume control method of this paper is adopted.

[0108] As a curve Figure 15 As shown in the figure, the upper dashed line represents the operating power change curve of the conventional control method, and the upper solid line represents the operating power change curve of the proposed control method; the lower dashed line represents the power consumption change curve of the conventional control method, and the lower solid line represents the power consumption change curve of the proposed control method. The curve comparison shows that when the variable fresh air volume control method of this proposal is adopted, the air conditioner operating power is reduced, the power consumption per hour is reduced by 0.27 kWh, and energy saving is 8.56%.

[0109] As a curve Figure 16 As shown in the figure, the dashed line represents the fresh air speed variation curve of the conventional control method, and the solid line represents the fresh air speed variation curve of the control method of this proposal. The curve comparison shows that when the variable fresh air volume control method of this proposal is adopted, the fresh air speed adapts to the environmental load.

[0110] To enable those skilled in the art to better understand the technical solution of this application, the implementation process of the air conditioner fresh air control method of this application will be described in detail below with reference to specific embodiments.

[0111] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0112] This application also provides an air conditioner fresh air control device. It should be noted that the air conditioner fresh air control device of this application can be used to execute the air conditioner fresh air control method provided in this application. This device is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0113] The following describes the fresh air control device for an air conditioner provided in the embodiments of this application.

[0114] Figure 17 This is a schematic diagram of an air conditioner fresh air control device according to an embodiment of this application. Figure 17 As shown, the device includes:

[0115] The first acquisition unit 171 is used to acquire the indoor ambient temperature, the outdoor ambient temperature, and the set temperature;

[0116] The second acquisition unit 172 is used to acquire a first relationship between the indoor ambient temperature and the set temperature, and a second relationship between the indoor ambient temperature and the outdoor ambient temperature;

[0117] Control unit 173 is used to synchronously control the air conditioner's indoor fan, air conditioner compressor, and fresh air fan based at least on the first size relationship and the second size relationship, so that the indoor and outdoor loads are matched with the fresh air volume and the difference between the indoor ambient temperature and the set temperature after a preset time period is less than a preset difference.

[0118] The air conditioner fresh air control device of this application includes a first acquisition unit that acquires indoor ambient temperature, outdoor ambient temperature, and a set temperature; a second acquisition unit that acquires a first relationship between the indoor ambient temperature and the set temperature, and a second relationship between the indoor ambient temperature and the outdoor ambient temperature; and a control unit that synchronously controls the air conditioner's indoor fan, air conditioner compressor, and fresh air fan based at least on the first and second relationships, so that the indoor and outdoor loads are matched with the fresh air volume and the difference between the indoor ambient temperature and the set temperature is less than a preset difference after a preset time period. By simultaneously considering the indoor ambient temperature, outdoor ambient temperature, and set temperature in controlling the air conditioner's indoor fan, air conditioner compressor, and fresh air fan, the control modes for the fresh air fan are relatively rich, and energy saving is achieved while meeting the user's fresh air needs.

[0119] In the embodiments of this application, the control unit includes an acquisition module and a control module. The acquisition module is used to acquire a set operating mode, which is a cooling operating mode or a heating operating mode. The control module is used to synchronously control the air conditioner's internal fan, the air conditioner's compressor, and the fresh air fan according to the set operating mode, the first size relationship, and the second size relationship.

[0120] In embodiments of this application, the control module includes at least one of a first control submodule, a second control submodule, a third control submodule, and a fourth control submodule:

[0121] The first control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the first cooling fresh air mode when the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature.

[0122] The second control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the second cooling fresh air mode when the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature.

[0123] The third control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the third cooling fresh air mode when the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature.

[0124] The fourth control submodule is used to control the air conditioner's indoor fan, air conditioner compressor, and fresh air fan according to the fourth cooling fresh air mode when the set operating mode is the cooling operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature.

[0125] In the embodiments of this application, the first control submodule is further configured to control the air conditioner's internal fan to start operation, control the air conditioner's compressor to start cooling operation, and control the fresh air fan to start operation at a lower speed limit value, wherein the lower speed limit value is the operating speed of the fresh air fan to maintain the minimum human body's need for fresh air;

[0126] The third control submodule is also used to control the air conditioner's internal fan to start and run, control the air conditioner's compressor not to start and control the fresh air fan to start and run at the upper limit of the speed, wherein the upper limit of the speed is the upper limit of the operating speed allowed for the fresh air fan;

[0127] The second control submodule is also used to control the start-up of the air conditioner's indoor fan, control the start-up of the air conditioner's compressor for cooling operation, and control the start-up of the fresh air fan at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; after controlling the air conditioner's indoor fan, the air conditioner's compressor, and the fresh air fan for a first preset time period, it again acquires the indoor ambient temperature and the outdoor ambient temperature in real time, and maintains the current operating state if the indoor ambient temperature is greater than or equal to the outdoor ambient temperature, and otherwise... In this case, the indoor ambient temperature and the rate of temperature drop are acquired in real time again, and the current operating state is maintained when the rate of temperature drop meets a first preset condition. The first preset condition is that the rate of temperature drop is greater than or equal to a preset rate of temperature drop throughout a second preset time period. If the rate of temperature drop does not meet the first preset condition, the speed of the fresh air fan is controlled to be reduced until the speed of the fresh air fan is reduced to a lower speed limit value, and the current operating state is maintained. The lower speed limit value is the operating speed of the fresh air fan to maintain the minimum requirement of the human body for fresh air.

[0128] The fourth control submodule is also used to control the air conditioner's indoor fan to start and operate, control the air conditioner's compressor not to start and control the fresh air fan to start and operate at its maximum speed limit, wherein the maximum speed limit is the maximum operating speed limit allowed for the fresh air fan; after controlling the air conditioner's indoor fan, the air conditioner's compressor and the fresh air fan for a first preset time period, it again acquires the outdoor ambient temperature and the set temperature in real time, and maintains the current operating state if the outdoor ambient temperature is lower than the set temperature; if the outdoor ambient temperature is not lower than the set temperature, it again acquires the indoor ambient temperature and the set temperature in real time, and maintains the current operating state if the indoor ambient temperature is lower than the set temperature; if the indoor ambient temperature is not lower than the set temperature, it adjusts the speed of the fresh air fan to its lower speed limit, wherein the lower speed limit is the operating speed of the fresh air fan to maintain the minimum human body's need for fresh air.

[0129] In embodiments of this application, the control module includes at least one of a fifth control submodule, a sixth control submodule, a seventh control submodule, and an eighth control submodule:

[0130] The fifth control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the first heating fresh air mode when the set operating mode is the heating operating mode, the first size relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature.

[0131] The sixth control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the second heating fresh air mode when the set operating mode is the heating operating mode, the first size relationship indicates that the indoor ambient temperature is greater than the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature.

[0132] The seventh control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the third heating fresh air mode when the set operating mode is the heating operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is greater than or equal to the outdoor ambient temperature.

[0133] The eighth control submodule is used to control the air conditioner's indoor fan, the air conditioner compressor, and the fresh air fan according to the fourth heating fresh air mode when the set operating mode is the heating operating mode, the first size relationship indicates that the indoor ambient temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor ambient temperature is less than the outdoor ambient temperature.

[0134] In a specific implementation, the fifth control submodule is further configured to control the air conditioner's internal fan to not start, control the air conditioner's compressor to not start, and control the fresh air fan to start operating at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; the seventh control submodule is further configured to include: controlling the air conditioner's internal fan to start, controlling the air conditioner's compressor to start heating, and controlling the fresh air fan to start operating at its minimum speed limit, wherein the minimum speed limit is the operating speed of the fresh air fan to maintain the minimum human body's need for fresh air.

[0135] In a specific implementation, the sixth control submodule is further configured to control the air conditioner's indoor fan to not start, control the air conditioner's compressor to not start, and control the fresh air fan to start operating at its maximum speed limit, wherein the maximum speed limit is the maximum allowable operating speed of the fresh air fan; after controlling the air conditioner's indoor fan, the air conditioner's compressor, and the fresh air fan for a first preset time period, the outdoor ambient temperature and the set temperature are acquired again in real time, and the current operating state is maintained if the outdoor ambient temperature is greater than or equal to the set temperature; if the outdoor ambient temperature is not greater than or equal to the set temperature, the indoor ambient temperature and the set temperature are acquired again in real time, and the current operating state is maintained if the indoor ambient temperature is greater than or equal to the set temperature; if the indoor ambient temperature is not greater than or equal to the set temperature, the speed of the fresh air fan is adjusted to its minimum speed limit, wherein the minimum speed limit is the operating speed of the fresh air fan to maintain the minimum human body's need for fresh air;

[0136] The eighth control submodule is also used to control the start-up of the air conditioner's indoor fan, control the start-up of the air conditioner's compressor for heating operation, and control the start-up of the fresh air fan at the upper speed limit. After controlling the air conditioner's indoor fan, the air conditioner's compressor, and the fresh air fan for the first preset time period, it again acquires the indoor ambient temperature and the outdoor ambient temperature in real time. If the indoor ambient temperature is lower than the outdoor ambient temperature, it maintains the current operating state. If the indoor ambient temperature is not lower than the outdoor ambient temperature, it again acquires the indoor ambient temperature and the rate of increase of the indoor ambient temperature. If the rate of increase of the indoor ambient temperature meets a second preset condition, it maintains the current operating state. The second preset condition is that the rate of increase of the indoor ambient temperature is greater than or equal to a preset rate of increase for the second preset time period. If the rate of increase of the indoor ambient temperature does not meet the second preset condition, it controls the speed of the fresh air fan to decrease until the speed of the fresh air fan decreases to the lower speed limit, and maintains the current operating state.

[0137] The air conditioner's fresh air control device includes a processor and a memory. The first acquisition unit, the second acquisition unit, and the control unit are all stored as program units in the memory. The processor executes these program units stored in the memory to achieve the corresponding functions. All of the above modules are located in the same processor; alternatively, the modules may be located in different processors in any combination.

[0138] The processor contains a kernel, which retrieves the corresponding program unit from memory. One or more kernels can be configured; adjusting kernel parameters can address the issue of single-function fresh air control.

[0139] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0140] This application also provides a fresh air air conditioner, including:

[0141] Air conditioner internal fan;

[0142] Air conditioner compressor;

[0143] The system includes a fresh air fan, a fresh air duct, and an adjustment mechanism. The fresh air duct is connected to the fan inside the air conditioner via the adjustment mechanism. The adjustment mechanism is used to adjust the fresh air volume. The fresh air fan is connected to the fresh air duct and is used to introduce outdoor air into the fresh air duct.

[0144] The controller communicates with the air conditioner's internal fan, the air conditioner's compressor, the fresh air fan, and the regulating mechanism, respectively, and is used to execute any one of the described air conditioner fresh air control methods.

[0145] This invention provides a computer-readable storage medium including a stored program, wherein the program, when running, controls the device containing the computer-readable storage medium to execute the air conditioner fresh air control method.

[0146] This invention provides a processor for running a program, wherein the program executes the air conditioner fresh air control method during runtime.

[0147] This invention provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it implements at least the steps of the air conditioner fresh air control method. The device described herein can be a server, PC, PAD, mobile phone, etc.

[0148] This application also provides a computer program product that, when executed on a data processing device, is adapted to perform steps for initializing an air conditioner fresh air control method having at least the following features.

[0149] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0150] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0151] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0152] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0153] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process.Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0154] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0155] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0156] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0157] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0158] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An air conditioner fresh air control method, characterized by, The method comprises the following steps: obtaining an indoor environment temperature, an outdoor environment temperature and a set temperature; obtaining a first size relationship between the indoor environment temperature and the set temperature, and a second size relationship between the indoor environment temperature and the outdoor environment temperature; synchronously controlling an air conditioner indoor fan, an air conditioner compressor and a fresh air fan according to at least the first size relationship and the second size relationship, so that an indoor and outdoor load is adapted to a fresh air amount and a difference between the indoor environment temperature and the set temperature is less than a preset difference after a preset time period; synchronously controlling the air conditioner indoor fan, the air conditioner compressor and the fresh air fan according to at least the first size relationship and the second size relationship, comprising: obtaining a set operation mode, which is a cooling operation mode or a heating operation mode; synchronously controlling the air conditioner indoor fan, the air conditioner compressor and the fresh air fan according to the set operation mode, the first size relationship and the second size relationship, comprising at least one of the following: in a case where the set operation mode is the cooling operation mode, the first size relationship indicates that the indoor environment temperature is greater than the set temperature, and the second size relationship indicates that the indoor environment temperature is less than the outdoor environment temperature, the air conditioner indoor fan, the air conditioner compressor and the fresh air fan are controlled according to a first fresh air mode for cooling; the air conditioner indoor fan, the air conditioner compressor and the fresh air fan are controlled according to the first fresh air mode for cooling, comprising: controlling the air conditioner indoor fan to start running, controlling the air conditioner compressor to start cooling operation, and controlling the fresh air fan to start running at a lower limit value of a rotating speed, wherein the lower limit value of the rotating speed is an operating rotating speed of the fresh air fan for maintaining a minimum demand of fresh air by a human body. In a case where the set operation mode is the refrigeration operation mode, the first size relationship indicates that the indoor environment temperature is greater than the set temperature, and the second size relationship indicates that the indoor environment temperature is greater than or equal to the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to a second fresh air refrigeration mode; the control of the indoor fan, the compressor and the fresh air fan according to the second fresh air refrigeration mode comprises: starting the indoor fan, starting the compressor to perform refrigeration operation, and starting the fresh air fan at a rotational speed upper limit value; the rotational speed upper limit value is an upper limit of the rotational speed at which the fresh air fan is allowed to operate; after the indoor fan, the compressor and the fresh air fan are controlled for a first preset time period, the indoor environment temperature and the outdoor environment temperature are acquired again in real time; in a case where the indoor environment temperature is greater than or equal to the outdoor environment temperature, the current operation state is maintained; in a case where the indoor environment temperature is not greater than or equal to the outdoor environment temperature, the indoor environment temperature is acquired again in real time, and an indoor environment temperature drop rate is acquired; in a case where the indoor environment temperature drop rate satisfies a first preset condition, the current operation state is maintained; the first preset condition is that the indoor environment temperature drop rate is greater than or equal to a preset drop rate within a second preset time period; in a case where the indoor environment temperature drop rate does not satisfy the first preset condition, the rotational speed of the fresh air fan is reduced until the rotational speed of the fresh air fan is reduced to a rotational speed lower limit value, and the current operation state is maintained; the rotational speed lower limit value is a rotational speed at which the fresh air fan maintains a minimum demand for fresh air of a human body.

2. The method of claim 1, wherein, The indoor fan, the compressor and the fresh air fan of the air conditioner are synchronously controlled according to the set operation mode, the first size relationship and the second size relationship, and the synchronous control comprises at least one of the following: In a case where the set operation mode is the refrigeration operation mode, the first size relationship indicates that the indoor environment temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor environment temperature is greater than or equal to the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to a third fresh air refrigeration mode; In a case where the set operation mode is the refrigeration operation mode, the first size relationship indicates that the indoor environment temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor environment temperature is less than the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to a fourth fresh air refrigeration mode.

3. The method of claim 2, wherein According to the third fresh air making mode, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled, including: controlling the indoor fan to start running, controlling the compressor not to start, and controlling the fresh air fan to start running at an upper limit of rotating speed, wherein the upper limit of rotating speed is an upper limit of running rotating speed allowed by the fresh air fan; and / or, According to the fourth fresh air making mode, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled, including: controlling the indoor fan to start running, controlling the compressor not to start, and controlling the fresh air fan to start running at an upper limit of rotating speed, wherein the upper limit of rotating speed is an upper limit of running rotating speed allowed by the fresh air fan; after the indoor fan, the compressor and the fresh air fan are controlled for a first preset time period, the outdoor environment temperature and the set temperature are acquired again in real time, and in the case that the outdoor environment temperature is less than the set temperature, the current running state is maintained; in the case that the outdoor environment temperature is not less than the set temperature, the indoor environment temperature and the set temperature are acquired again in real time, and in the case that the indoor environment temperature is less than the set temperature, the current running state is maintained; in the case that the indoor environment temperature is not less than the set temperature, the rotating speed of the fresh air fan is adjusted to a lower limit of rotating speed, wherein the lower limit of rotating speed is a running rotating speed of the fresh air fan for maintaining the minimum demand of human body for fresh air.

4. The method of claim 1, wherein, According to the set running mode, the first size relationship and the second size relationship, the indoor fan, the compressor and the fresh air fan of the air conditioner are synchronously controlled, including at least one of the following: In the case that the set running mode is the heating running mode, the first size relationship indicates that the indoor environment temperature is greater than the set temperature, and the second size relationship indicates that the indoor environment temperature is less than the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to the first heating fresh air making mode; In the case that the set running mode is the heating running mode, the first size relationship indicates that the indoor environment temperature is greater than the set temperature, and the second size relationship indicates that the indoor environment temperature is greater than or equal to the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to the second heating fresh air making mode; In the case that the set running mode is the heating running mode, the first size relationship indicates that the indoor environment temperature is less than or equal to the set temperature, and the second size relationship indicates that the indoor environment temperature is greater than or equal to the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to the third heating fresh air making mode; In a case that the set operation mode is the heating operation mode, the first size relation indicates that the indoor environment temperature is less than or equal to the set temperature, and the second size relation indicates that the indoor environment temperature is less than the outdoor environment temperature, the indoor fan, the compressor and the fresh air fan of the air conditioner are controlled according to a fourth heating fresh air mode.

5. The method of claim 4, wherein, controlling the indoor fan, the compressor and the fresh air fan of the air conditioner according to the first heating fresh air mode comprises: controlling the indoor fan to not start running, controlling the compressor to not start, and controlling the fresh air fan to start running at an upper limit value of a rotating speed, wherein the upper limit value of the rotating speed is an upper limit of a running rotating speed of the fresh air fan allowed to run; and / or, controlling the indoor fan, the compressor and the fresh air fan of the air conditioner according to the third heating fresh air mode comprises: controlling the indoor fan to start running, controlling the compressor to start heating, and controlling the fresh air fan to start running at a lower limit value of a rotating speed, wherein the lower limit value of the rotating speed is a running rotating speed of the fresh air fan to maintain a minimum requirement of fresh air for a human body.

6. The method of claim 4, wherein, controlling the indoor fan, the compressor and the fresh air fan of the air conditioner according to the second heating fresh air mode comprises: controlling the indoor fan to not start, controlling the compressor to not start, and controlling the fresh air fan to start running at an upper limit value of a rotating speed, wherein the upper limit value of the rotating speed is an upper limit of a running rotating speed of the fresh air fan allowed to run; after the indoor fan, the compressor and the fresh air fan are controlled for a first preset time period, the outdoor environment temperature and the set temperature are acquired again in real time, and in a case that the outdoor environment temperature is greater than or equal to the set temperature, a current running state is maintained, in a case that the outdoor environment temperature is not greater than or equal to the set temperature, the indoor environment temperature and the set temperature are acquired again in real time, and in a case that the indoor environment temperature is greater than or equal to the set temperature, the current running state is maintained, in a case that the indoor environment temperature is not greater than or equal to the set temperature, a rotating speed of the fresh air fan is adjusted to a lower limit value of a rotating speed, wherein the lower limit value of the rotating speed is a running rotating speed of the fresh air fan to maintain a minimum requirement of fresh air for a human body; and / or, According to the fourth heating fresh air mode control, the air conditioner fan, the air conditioner compressor and the fresh air fan, comprising: control the air conditioner fan start running, control the air conditioner compressor start heating operation and control the fresh air fan with the upper limit value of the rotating speed start running; After controlling the air conditioner fan, the air conditioner compressor and the fresh air fan for the first preset time period, again, real-time acquisition of the indoor environment temperature and the outdoor environment temperature, and in the case of satisfying the indoor environment temperature is less than the outdoor environment temperature, maintain the current running state, in the case of not satisfying the indoor environment temperature is less than the outdoor environment temperature, again, real-time acquisition of the indoor environment temperature and the indoor environment temperature temperature rising rate, and in the case of the indoor environment temperature temperature rising rate satisfies the second preset condition, maintain the current running state, the second preset condition is in the second preset time period, the indoor environment temperature temperature rising rate is greater than or equal to the preset temperature rising rate; In the case of the indoor environment temperature temperature rising rate does not satisfy the second preset condition, control the speed of the fresh air fan is reduced, until the speed of the fresh air fan is reduced to the lower limit value, maintain the current running state.

7. An air conditioner fresh air control device characterized by comprising: Including: The first acquisition unit is used for acquiring indoor environment temperature, outdoor environment temperature and set temperature; The second acquisition unit is used for acquiring the first size relationship of the indoor environment temperature and the set temperature, and the second size relationship of the indoor environment temperature and the outdoor environment temperature; The control unit is used for at least according to the first size relationship and the second size relationship, synchronous control air conditioner fan, air conditioner compressor and fresh air fan, so that indoor outdoor load and fresh air volume adapt and the difference between the indoor environment temperature and the set temperature is less than the preset difference after the preset time period; The control unit includes an acquisition module, and at least one of the first control submodule, the second control submodule, the third control submodule and the fourth control submodule; The acquisition module is used for acquiring a set running mode, and the set running mode is a refrigeration running mode or a heating running mode; The first control submodule is used for controlling the air conditioner fan, the air conditioner compressor and the fresh air fan according to the first refrigeration fresh air mode in the case of the set running mode being the refrigeration running mode, the first size relationship indicating that the indoor environment temperature is greater than the set temperature, and the second size relationship indicating that the indoor environment temperature is less than the outdoor environment temperature; The second control submodule is used for controlling the air conditioner fan, the air conditioner compressor and the fresh air fan according to the second refrigeration fresh air mode in the case of the set running mode being the refrigeration running mode, the first size relationship indicating that the indoor environment temperature is greater than the set temperature, and the second size relationship indicating that the indoor environment temperature is greater than or equal to the outdoor environment temperature; The third control submodule is used for controlling the air conditioner fan, the air conditioner compressor and the fresh air fan according to the third refrigeration fresh air mode in the case of the set running mode being the refrigeration running mode, the first size relationship indicating that the indoor environment temperature is less than the set temperature, and the second size relationship indicating that the indoor environment temperature is greater than or equal to the outdoor environment temperature; The fourth control submodule is used for controlling the air conditioner fan, the air conditioner compressor and the fresh air fan according to the fourth heating fresh air mode in the case of the set running mode being the heating running mode, the first size relationship indicating that the indoor environment temperature is less than the set temperature, and the second size relationship indicating that the indoor environment temperature is less than the outdoor environment temperature; The first control sub-module is further configured to control the indoor fan of the air conditioner to start running, control the compressor of the air conditioner to start refrigeration running, and control the fresh air fan to start running at a lower limit value of rotating speed, wherein the lower limit value of rotating speed is an operating rotating speed of the fresh air fan for maintaining the minimum requirement of fresh air for human body. The second control sub-module is further configured to control the indoor fan of the air conditioner to start running, control the compressor of the air conditioner to start refrigeration running, and control the fresh air fan to start running at an upper limit value of rotating speed, wherein the upper limit value of rotating speed is an upper limit of operating rotating speed of the fresh air fan for allowing running; after the indoor fan, the compressor and the fresh air fan are controlled for a first preset time period, the indoor environment temperature and the outdoor environment temperature are acquired again in real time, and in the case that the indoor environment temperature is greater than or equal to the outdoor environment temperature, the current operating state is maintained, in the case that the indoor environment temperature is not greater than or equal to the outdoor environment temperature, the indoor environment temperature is acquired again in real time and an indoor environment temperature drop rate is acquired, and in the case that the indoor environment temperature drop rate satisfies a first preset condition, the current operating state is maintained, the first preset condition is that the indoor environment temperature drop rate is greater than or equal to a preset temperature drop rate within a second preset time period; in the case that the indoor environment temperature drop rate does not satisfy the first preset condition, the rotating speed of the fresh air fan is controlled to be reduced until the rotating speed of the fresh air fan is reduced to the lower limit value of rotating speed, and the current operating state is maintained, wherein the lower limit value of rotating speed is an operating rotating speed of the fresh air fan for maintaining the minimum requirement of fresh air for human body.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a stored program, wherein the program controls the device where the computer readable storage medium is located to execute the air conditioner fresh air control method of any one of claims 1 to 6 when the program is running.

9. A fresh air conditioner characterized by comprising: The air conditioner comprises: an indoor fan; a compressor; a fresh air fan, a fresh air duct and a regulating mechanism, the fresh air duct is connected with the indoor fan through the regulating mechanism, the regulating mechanism is configured to regulate fresh air volume, and the fresh air fan is connected with the fresh air duct and configured to introduce outdoor air into the fresh air duct; a controller, which is configured to communicate with the indoor fan, the compressor, the fresh air fan and the regulating mechanism respectively, and execute the air conditioner fresh air control method of any one of claims 1 to 6.

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