Fresh air air conditioner control method, fresh air air conditioner and computer readable storage medium

Abstract

The application discloses a fresh air conditioner control method, a fresh air conditioner and a computer readable storage medium. The method comprises the following steps: obtaining the running speed of a fresh air fan of the fresh air conditioner when the fresh air conditioner is in a temperature regulation state; the indoor fan of the fresh air conditioner drives indoor air to enter the indoor environment after the indoor air is adjusted in temperature by the fresh air conditioner; determining the first target speed of the indoor fan according to the running speed; and controlling the indoor fan to run at the first target speed. The application aims to reduce the temperature fluctuation of the indoor environment when the fresh air is introduced into the indoor environment, and improve the comfort of the indoor user.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a control method for a fresh air conditioning system, a fresh air conditioning system, and a computer-readable storage medium. Background Technology

[0002] With the development of economy and technology, the performance of air conditioners has become increasingly diversified, and fresh air air conditioners have emerged as a result. Fresh air air conditioners are air conditioning devices that simultaneously have the functions of indoor air circulation regulation and fresh air intake.

[0003] However, when users use the recirculation function to regulate indoor air, there will be a certain temperature difference between the indoor and outdoor environments. After the outdoor fresh air is introduced into the room, the indoor temperature will fluctuate more, affecting the comfort of indoor users. Summary of the Invention

[0004] The main objective of this invention is to provide a control method for a fresh air conditioning system, a fresh air conditioning system, and a computer-readable storage medium, which aims to reduce temperature fluctuations in the indoor environment when fresh air is introduced into the room and improve the comfort of indoor users.

[0005] To achieve the above objectives, the present invention provides a control method for a fresh air conditioning unit, the control method comprising the following steps:

[0006] When the fresh air conditioner is in temperature regulation mode, the operating speed of the fresh air fan of the fresh air conditioner is obtained; in the temperature regulation mode, the indoor fan of the fresh air conditioner drives indoor air to be delivered into the room after the temperature is regulated by the fresh air conditioner.

[0007] The first target speed of the indoor fan is determined based on the operating speed.

[0008] Control the indoor fan to operate at the first target speed.

[0009] Optionally, the first target rotational speed is positively correlated with the operating rotational speed.

[0010] Optionally, the step of determining the first target speed of the indoor fan based on the operating speed includes:

[0011] Determine the speed adjustment value corresponding to the operating speed, wherein the speed adjustment value is positively correlated with the operating speed;

[0012] The current speed of the indoor fan is increased according to the speed adjustment value to obtain the first target speed.

[0013] Optionally, after the step of obtaining the operating speed of the fresh air fan of the fresh air conditioner, the method further includes:

[0014] When the operating speed is less than or equal to a preset speed threshold, the indoor fan is controlled to maintain the current speed.

[0015] When the operating speed is greater than the preset speed threshold, the step of determining the first target speed of the indoor fan of the fresh air conditioner based on the operating speed is executed.

[0016] Optionally, the control method for the fresh air conditioning system further includes:

[0017] When the fresh air conditioner is in temperature regulation mode, in response to the fresh air mode start command of the fresh air conditioner, the second target speed of the fresh air fan is obtained.

[0018] Control the fresh air fan to run at the second target speed and start timing to obtain the timing duration;

[0019] When the timeout period reaches the first preset timeout, the step of obtaining the operating speed of the fresh air fan of the fresh air conditioner is executed.

[0020] Optionally, after the step of controlling the indoor fan to operate at the first target speed, the method further includes:

[0021] At a second preset time interval, the temperature difference between the indoor environment and the outdoor environment where the fresh air air conditioner is located is obtained;

[0022] The fresh air conditioner is adjusted according to the temperature difference value so that the temperature change of the indoor environment before and after the fresh air mode of the fresh air conditioner is turned on is less than a set threshold.

[0023] Optionally, the fresh air conditioner includes a compressor, and the step of adjusting the fresh air conditioner according to the temperature difference includes:

[0024] When the fresh air conditioner is in cooling mode, if the temperature difference is greater than or equal to the first preset temperature difference, the frequency of the compressor is increased.

[0025] When the temperature difference is less than the first preset temperature difference, the current frequency of the compressor is maintained.

[0026] Optionally, the fresh air conditioner includes a heating module for adjusting the fresh air temperature, and the step of adjusting the fresh air conditioner according to the temperature difference includes:

[0027] When the fresh air conditioner is in heating mode, the heating module is turned on when the temperature difference is greater than or equal to the second preset temperature difference.

[0028] When the temperature difference is less than the second preset temperature difference, the heating module is turned off.

[0029] Furthermore, to achieve the above objectives, this application also proposes a fresh air conditioning system, which includes:

[0030] Indoor fan;

[0031] Fresh air ventilator;

[0032] A control device is provided, wherein both the indoor fan and the fresh air fan are connected to the control device. The control device includes: a memory, a processor, and a control program for the fresh air conditioner stored in the memory and executable on the processor. When the control program for the fresh air conditioner is executed by the processor, it implements the steps of the control method for the fresh air conditioner as described above.

[0033] In addition, to achieve the above objectives, this application also proposes a computer-readable storage medium storing a control program for a fresh air conditioner, wherein the control program for the fresh air conditioner, when executed by a processor, implements the steps of the control method for the fresh air conditioner as described in any of the preceding claims.

[0034] This invention proposes a control method for a fresh air conditioner. In this method, when the fresh air conditioner is in temperature regulation mode, the first target speed of the indoor fan used to drive the internal circulation and temperature regulation of indoor air is determined based on the operating speed of the fresh air fan. This ensures that the temperature regulation efficiency of the fresh air conditioner for indoor air matches the speed of fresh air introduction, allowing fresh air with a certain temperature difference from indoor air to quickly approach the indoor air temperature under the action of internal circulation regulation. This reduces temperature fluctuations in the indoor environment when fresh air is introduced, improving the comfort of indoor users. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the fresh air conditioner of the present invention;

[0036] Figure 2 This is a flowchart illustrating an embodiment of the control method for a fresh air conditioner according to the present invention;

[0037] Figure 3 This is a flowchart illustrating another embodiment of the control method for a fresh air conditioner according to the present invention.

[0038] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0040] The main solution of this invention is as follows: Based on a fresh air conditioner including a fresh air fan for driving outdoor fresh air into the room and a fresh air fan for driving indoor air recirculation, when the fresh air conditioner is in temperature regulation mode, the operating speed of the fresh air fan is obtained; in the temperature regulation mode, the indoor fan of the fresh air conditioner drives indoor air to be delivered into the room after the temperature is regulated by the fresh air conditioner; a first target speed of the indoor fan is determined according to the operating speed; and the indoor fan is controlled to operate at the first target speed.

[0041] In existing technologies, when users use the internal circulation function to regulate indoor air, there will be a certain temperature difference between the indoor and outdoor environments. When fresh outdoor air is introduced into the room, it will cause greater fluctuations in indoor temperature, affecting the comfort of indoor users.

[0042] The present invention provides the above-mentioned solution, which aims to reduce the temperature fluctuation of the indoor environment when fresh air is introduced into the room and improve the comfort of indoor users.

[0043] This invention proposes a fresh air conditioner, which can be any air conditioner with a fresh air function, such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a portable air conditioner, or a ceiling-mounted air conditioner.

[0044] Specifically, the fresh air conditioning system includes an internal circulation module 2, a fresh air module 3, and a control device 1. Both the internal circulation module 2 and the fresh air module 3 are connected to the control device 1.

[0045] The internal circulation module 2 includes a heat pump system, which comprises a refrigerant circulation loop. The refrigerant circulation loop includes a compressor, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger connected in sequence. In this embodiment, the heat pump system allows switching between heating and cooling operations; in other embodiments, the heat pump system may also be a system that only allows one of heating or cooling operations. An indoor fan is correspondingly provided with the indoor heat exchanger in the refrigerant circulation loop, driving the internal air circulation. When the indoor heat exchanger is in an evaporating or condensing state, air from the indoor environment enters the internal circulation module 2 under the drive of the indoor fan, absorbs cold or heat through the indoor heat exchanger, and is then delivered into the room. The indoor air continuously circulates in this manner to achieve the regulation of the indoor ambient temperature by the fresh air conditioning system.

[0046] The fresh air module 3 includes a fresh air fan, which drives outdoor fresh air into the room. When the fresh air fan is turned on, it can drive air from the outdoor environment into the room. The fresh air fan is a device with adjustable speed. Furthermore, the fresh air module 3 also includes a heating module, which heats the fresh air. In this embodiment, the heating module is an electric auxiliary heating module; in other embodiments, the heating module may also be a heat storage module that stores the heat generated by the internal circulation module 2.

[0047] In this embodiment, the air ducts of the internal circulation module 2 and the fresh air module 3 are independent of each other. In other embodiments, the internal circulation module 2 and the fresh air module 3 may also share a single air duct, meaning that after outdoor fresh air enters the fresh air conditioning system, it can mix with the air in the internal circulation duct before being sent indoors. Specifically, the outdoor fresh air can mix with indoor air that has not undergone heat exchange with the indoor heat exchanger, or the outdoor fresh air can mix with indoor air that has undergone heat exchange with the indoor heat exchanger.

[0048] In this embodiment of the invention, reference is made to Figure 1 The control device 1 for the fresh air conditioner includes a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, etc. The components in the control device 1 are connected via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0049] Timer 1003 is specifically used to collect the duration information involved in the operation and control process of the fresh air conditioning system.

[0050] Those skilled in the art will understand that Figure 1 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0051] like Figure 1 As shown, the memory 1002, which is a computer-readable storage medium, may include a control program for a fresh air conditioning system. Figure 1 In the device shown, the processor 1001 can be used to call the control program of the fresh air conditioner stored in the memory 1002 and execute the relevant steps of the control method of the fresh air conditioner in the following embodiments.

[0052] This invention also provides a control method for a fresh air conditioner, which is applied to the aforementioned fresh air conditioner.

[0053] Reference Figure 2 This application proposes an embodiment of a control method for a fresh air conditioning unit. In this embodiment, the control method for the fresh air conditioning unit includes:

[0054] Step S10: When the fresh air conditioner is in temperature regulation mode, obtain the operating speed of the fresh air fan; in the temperature regulation mode, the indoor fan of the fresh air conditioner drives indoor air to be delivered into the room after the temperature is regulated by the fresh air conditioner.

[0055] When the temperature is regulated, the internal circulation module of the fresh air conditioner operates in either cooling or heating mode. During this mode, the compressor is on, the indoor heat exchanger is in evaporation mode, and the indoor fan is on. The indoor fan drives indoor air into the internal circulation module to exchange heat with the indoor heat exchanger before delivering it into the indoor environment. When the fresh air conditioner is in temperature regulation mode, the indoor ambient temperature differs from the outdoor ambient temperature.

[0056] The operating speed of the fresh air fan is specifically obtained by detecting the current electrical parameters (such as current, voltage, or power) of the motor in the fresh air fan.

[0057] Step S20: Determine the first target speed of the indoor fan based on the operating speed;

[0058] Different operating speeds correspond to different first target speeds. In this embodiment, the first target speed is positively correlated with the operating speed, that is, the first target speed increases as the operating speed increases, and decreases as the operating speed decreases.

[0059] Specifically, the correspondence between the operating speed and the first target speed can be preset, such as a mapping relationship or a calculation formula. Based on this correspondence, the first target speed can be obtained by substituting the operating speed into the preset formula; alternatively, the operating speed can be queried from the preset mapping relationship, and the result matched in the mapping relationship can be used as the first target speed.

[0060] In other embodiments, the first target rotational speed and the operating rotational speed may also be negatively correlated. For example, the indoor ambient temperature and the set temperature of the fresh air conditioner can be obtained. In heating mode, if the indoor ambient temperature is higher than the set temperature, the first target rotational speed and the operating rotational speed may be negatively correlated; if the indoor ambient temperature is lower than the set temperature in heating mode, the first target rotational speed and the operating rotational speed may be positively correlated. In cooling mode, if the indoor ambient temperature is lower than the set temperature, the first target rotational speed and the operating rotational speed may be negatively correlated; if the indoor ambient temperature is higher than the set temperature in cooling mode, the first target rotational speed and the operating rotational speed may be positively correlated.

[0061] Step S30: Control the indoor fan to run at the first target speed.

[0062] When the indoor fan is running at the first target speed, the temperature change of the indoor environment before and after the fresh air mode is turned on is less than the set threshold.

[0063] Specifically, while controlling the indoor fan to operate at the first target speed, the fresh air fan is controlled to maintain the aforementioned operating speed. If an increase or decrease in the speed of the fresh air fan is detected, the process returns to step S10.

[0064] This invention proposes a control method for a fresh air conditioning system. When the fresh air conditioning system is in temperature regulation mode, the method determines the first target speed of the indoor fan used to drive the internal circulation and temperature regulation of indoor air based on the operating speed of the fresh air fan. This ensures that the temperature regulation efficiency of the fresh air conditioning system matches the speed of the fresh air introduction, allowing the fresh air, which has a certain temperature difference with the indoor air, to quickly approach the indoor air temperature under the action of internal circulation regulation. This reduces temperature fluctuations in the indoor environment when fresh air is introduced, improving the comfort of indoor users.

[0065] Furthermore, in this embodiment, the control method of the fresh air conditioner further includes: when the fresh air conditioner is in temperature regulation state, in response to the fresh air mode start command of the fresh air conditioner, obtaining the second target speed of the fresh air fan; controlling the fresh air fan to run at the second target speed and starting a timer to obtain the time duration; when the time duration reaches the first preset time duration, executing the step of obtaining the operating speed of the fresh air fan of the fresh air conditioner.

[0066] The start command here can be a command issued by the user, or it can be automatically generated when the fresh air conditioner detects that the concentration of pollutants in the indoor environment is greater than a set threshold.

[0067] The second target rotational speed can be determined by obtaining the user's input wind speed setting command, or it can be determined based on the current pollutant concentration in the monitored indoor environment.

[0068] The first preset duration here can be a fixed duration configured by the system default, a duration determined by the user, or a duration determined based on the current indoor and outdoor temperature difference. The first preset duration is negatively correlated with the indoor and outdoor temperature difference.

[0069] In this embodiment, after the air conditioner enters the fresh air mode, the indoor fan speed is adjusted to adapt to the operation of the fresh air fan after the fresh air fan runs at its target speed for a period of time. This ensures that the indoor fan speed is adjusted only when the amount of fresh air introduced reaches a level that would cause fluctuations in the indoor environment. On the one hand, this ensures the effectiveness of the indoor fan speed control, and on the other hand, it avoids increasing the indoor fan speed too early, which would increase the resistance to the introduction of fresh air. This ensures that fresh air can enter the room as soon as possible to improve the indoor air freshness, thereby achieving an effective balance between improving indoor air freshness and indoor temperature comfort.

[0070] Furthermore, in this embodiment, step S20 includes: determining the speed adjustment value corresponding to the operating speed, increasing the current speed of the indoor fan according to the speed adjustment value, and obtaining a first target speed. In this embodiment, the operating speed and the speed adjustment value are positively correlated; that is, the speed adjustment value increases as the operating speed increases, and decreases as the operating speed decreases.

[0071] Specifically, the correspondence between the operating speed and the speed adjustment value can be preset, which can be a mapping relationship, a calculation relationship, etc. Based on this correspondence, the speed adjustment value can be obtained by substituting the operating speed into the preset formula; alternatively, the speed can be adjusted by querying the preset mapping relationship through the operating speed and using the matching result in the mapping relationship. The sum of the speed adjustment value and the current speed is used as the first target speed.

[0072] In this embodiment, the rotational speed of the fresh air fan can be characterized by the number of fan speed settings. Based on the different rotational speeds of the fresh air fan, at least two fan speed settings can be pre-defined. In this embodiment, the fresh air fan speed settings include high, medium, and low. In other embodiments, the fresh air fan can also be divided into more or fewer fan speed settings according to actual needs. Specifically, when the fresh air fan is at the high speed setting, the rotational speed adjustment value is determined as a first adjustment value; when the fresh air fan is at the medium speed setting, the rotational speed adjustment value is determined as a second adjustment value. The first adjustment value is greater than the second adjustment value, and the second adjustment value is greater than the third adjustment value. In this embodiment, the first adjustment value is 80 r / min, and the second adjustment value is 40 r / min. In other embodiments, the first and second adjustment values ​​can also be set to other values ​​according to actual conditions.

[0073] In other embodiments, the operating speed and the speed adjustment value may also have a correlation other than a positive correlation.

[0074] In this embodiment, the current speed of the indoor fan is increased according to the operating speed of the fresh air fan, so that the speed at which indoor air enters the fresh air air conditioner for circulation and heat exchange can be adapted to the increased speed of fresh air introduced by the fresh air fan. This ensures that the fresh air entering the room can quickly adjust the temperature through internal circulation, effectively reducing the fluctuation of indoor ambient temperature caused by the introduction of fresh air and further improving the comfort of indoor users.

[0075] Furthermore, in other embodiments, the correspondence between the operating speed and the speed adjustment value (or the first target speed) can also be determined based on the actual operating conditions of the air conditioner. Specifically, the indoor ambient temperature, the outdoor ambient temperature, the temperature difference between the indoor ambient temperature and the set temperature of the fresh air conditioner, and / or the current operating frequency of the compressor can be obtained. Based on the indoor ambient temperature, the outdoor ambient temperature, and the temperature difference, a target correspondence between the operating speed and the speed adjustment value (or the first target speed) can be obtained. Based on the target correspondence, the first target speed of the indoor fan corresponding to the current operating speed of the fresh air fan can be determined. This helps to ensure the accuracy of the determined first target speed, further reduce the fluctuation of indoor ambient temperature caused by the introduction of fresh air, and further improve the comfort of indoor users.

[0076] Furthermore, based on the above embodiments, another embodiment of the control method for the fresh air conditioner of this application is proposed. In this embodiment, after step S10, the method further includes: when the operating speed is less than or equal to a preset speed threshold, controlling the indoor fan to maintain the current speed; when the operating speed is greater than the preset speed threshold, performing the step of determining the first target speed of the indoor fan of the fresh air conditioner based on the operating speed.

[0077] The preset speed threshold is a pre-set speed threshold used to distinguish whether the currently introduced fresh air will cause indoor ambient temperature fluctuations greater than the set range.

[0078] When the operating speed is less than or equal to the preset speed threshold, it indicates that the introduction of fresh air will not cause significant fluctuations in the indoor ambient temperature. At this time, controlling the indoor fan to maintain the current speed not only helps to ensure the stability of the air conditioner operation, but also allows the air to fully exchange heat with the indoor heat exchanger, ensuring that the outlet air temperature meets user comfort requirements. When the operating speed is greater than the preset speed threshold, it indicates that the introduction of fresh air will cause significant fluctuations in the indoor environment. At this time, the speed of the indoor fan is adjusted according to the operating speed of the fresh air to reduce the indoor temperature fluctuations caused by the introduction of fresh air and improve user comfort.

[0079] Furthermore, based on any of the above embodiments, another embodiment of the control method for the fresh air conditioning system of this application is proposed. In this embodiment, reference is made to... Figure 3 After step S30, the following steps are also included:

[0080] Step S40: After a second preset time interval, obtain the temperature difference between the indoor environment and the outdoor environment where the fresh air air conditioner is located;

[0081] The second preset duration can be a default value or a value determined based on the indoor-outdoor temperature difference when the fresh air mode is turned on. The second preset duration is negatively correlated with the indoor-outdoor temperature difference.

[0082] It should be noted that during the second preset time period, the indoor fan maintains the first target speed and the fresh air fan maintains the above-mentioned operating speed.

[0083] The process of obtaining the temperature difference value is as follows: the indoor and outdoor ambient temperatures of the environment where the fresh air conditioner is located are detected, and the absolute value of the difference between the indoor and outdoor ambient temperatures is taken as the temperature difference value. In other embodiments, the difference between the indoor and outdoor ambient temperatures can also be directly taken as the temperature difference value.

[0084] In this embodiment, the temperature difference between the indoor and outdoor ambient temperatures is the temperature difference detected when the indoor fan is regulated using the method mentioned in the above embodiment when the fresh air conditioner enters fresh air mode. In other embodiments, the temperature difference may also be the temperature difference detected in real time after the indoor fan is regulated using the method mentioned in the above embodiment and after a second preset time interval.

[0085] Step S50: Adjust the fresh air conditioner according to the temperature difference value so that the temperature change of the indoor environment before and after the fresh air mode of the fresh air conditioner is turned on is less than a set threshold.

[0086] Specifically, the operating parameters of the target adjustment module can be determined based on the temperature difference value, and the operation of the target adjustment module can be controlled according to the operating parameters. The target adjustment module is used to adjust the fresh air temperature or the heat exchange capacity of the indoor heat exchanger. The target adjustment module can be a pre-set fixed module or a module determined according to the current heat exchange mode of the fresh air conditioner. For example, if the fresh air conditioner is only allowed to operate in either cooling or heating mode, the target adjustment module is a pre-set fixed module. When the fresh air conditioner is only allowed to operate in cooling mode, the target adjustment module can be pre-set as one of the modules that increase cooling capacity, such as the compressor and / or electronic expansion valve. When the fresh air conditioner is only allowed to operate in heating mode, the target adjustment module can be pre-set as one of the modules that increase heating capacity, such as the compressor and / or electronic expansion valve, and / or a heating module in the fresh air duct, or a module that increases the fresh air temperature.

[0087] In this embodiment, the fresh air conditioner is an air conditioner with cooling and heating operation switching functions. Based on this, before step S50, the method may further include: obtaining the current heat exchange mode of the fresh air conditioner; determining the target adjustment module according to the heat exchange mode, with different heat exchange modes corresponding to different target adjustment modules. The heat exchange mode is one of a cooling mode and a heating mode. In this embodiment, when the heat exchange mode is a cooling mode, the compressor of the fresh air conditioner is determined as the target adjustment module; when the heat exchange mode is a heating mode, the heating module of the fresh air conditioner is determined as the target adjustment module. The heating module is used to adjust the fresh air outlet temperature and is located in the fresh air duct to heat the fresh air entering the fresh air duct from the outside before sending it into the room. In other embodiments, when the heat exchange mode is a heating mode, the compressor can also be determined as the target adjustment module; when the heat exchange mode is a cooling mode, the throttling device between the indoor and outdoor heat exchangers can also be determined as the target adjustment module. Based on this, it can be ensured that regardless of which heat exchange mode the fresh air conditioner operates in, the introduction of outdoor fresh air will not cause significant fluctuations in the indoor ambient temperature.

[0088] Different temperature difference values ​​correspond to different operating parameters of the target regulating module. The correspondence between temperature difference values ​​and operating parameters can be set according to the current operating mode of the air conditioner and the type of the target regulating module. Based on this correspondence, the operating parameters of the target regulating module can be obtained by calculating the temperature difference value or querying the mapping relationship.

[0089] In this embodiment, the fresh air conditioner includes a compressor, and the aforementioned target adjustment module can be the compressor. The step of adjusting the fresh air conditioner according to the temperature difference value includes: when the fresh air conditioner is in cooling mode, if the temperature difference value is greater than or equal to a first preset temperature difference, increasing the frequency of the compressor; and if the temperature difference value is less than the first preset temperature difference, maintaining the current frequency of the compressor. The first preset temperature difference is specifically a critical temperature difference value used to distinguish whether the introduction of outdoor fresh air in cooling mode will cause the indoor ambient temperature fluctuation to exceed a set range. Based on this, when the temperature difference value is too large in cooling mode, increasing the compressor frequency ensures that the cooling capacity output of the fresh air conditioner can be increased to compensate for the heat brought by the introduced fresh air, thereby effectively reducing the large fluctuations in indoor temperature caused by the introduction of fresh air. When the temperature difference value is small in cooling mode, it indicates that the introduction of fresh air will not cause large fluctuations in indoor temperature, and the current operating frequency of the compressor is maintained to save energy while ensuring the comfort of indoor users.

[0090] In this embodiment, the fresh air conditioner includes a heating module for adjusting the fresh air outlet temperature. The aforementioned target adjustment module can be the heating module. The step of adjusting the fresh air conditioner according to the temperature difference includes: when the fresh air conditioner is in heating mode, turning on the heating module when the temperature difference is greater than or equal to a second preset temperature difference; and turning off the heating module when the temperature difference is less than the second preset temperature difference. The second preset temperature difference is specifically a critical temperature difference value used to distinguish whether the introduction of outdoor fresh air in heating mode will cause indoor temperature fluctuations greater than a set range. Based on this, when the temperature difference is too large in heating mode, turning on the heating module to heat the fresh air ensures that the temperature of the introduced fresh air will not be too low, thereby effectively reducing large fluctuations in indoor temperature caused by the introduction of fresh air; when the temperature difference is small in heating mode, it indicates that the introduction of fresh air will not cause large fluctuations in indoor temperature, and the heating module is turned off to save energy while ensuring the comfort of indoor users.

[0091] When the fresh air mode is turned on, outdoor fresh air is introduced into the indoor environment; when the fresh air mode is turned off, outdoor fresh air stops being introduced into the indoor environment.

[0092] To better understand the solution in this embodiment, a specific example is given below:

[0093] When the air conditioner is in temperature setting mode and the fresh air function is not activated, record the absolute value ΔT of the difference between the indoor ambient temperature T1 and the outdoor ambient temperature T4. After adjusting the indoor fan speed according to the fresh air fan speed and running for 3 minutes, determine the magnitude of ΔT. When the air conditioner is running in cooling mode, if ΔT ≥ 12℃ (i.e., the first preset temperature mentioned above), the fresh air entering the room from the outside will affect the indoor temperature, which will greatly affect the user's comfort. Therefore, the compressor frequency is increased by 5Hz based on the normal operating frequency of the air conditioner. When ΔT < 12℃, the fresh air entering the room will not affect the indoor temperature. Temperature has a significant impact, so the compressor operates at the same frequency as when the fresh air function is not activated. When the air conditioner is in heating mode, if ΔT ≥ 12℃ (i.e., the second preset temperature mentioned above), the fresh air entering the room from the outside will affect the indoor temperature, which will greatly affect the user's comfort. Therefore, the PTC heater in the fresh air duct of the indoor unit is turned on, which increases the temperature of the fresh air outlet of the air conditioner and improves the comfort of using the air conditioner. When ΔT < 12℃, the fresh air entering the room will not have a significant impact on the indoor temperature, so the PTC heater of the indoor unit is turned off.

[0094] In this embodiment, by means of the above method, it can be ensured that after the indoor fan speed is adjusted to adapt to the fresh air fan speed, it can further adapt to the indoor and outdoor temperature difference to adjust the operation of the fresh air conditioner. This ensures that after the fresh air conditioner turns on the fresh air function to introduce fresh air, the indoor ambient temperature can be close to the indoor ambient temperature before the fresh air conditioner turns on the fresh air function, thereby further effectively reducing the temperature fluctuation of the indoor environment caused by the introduction of fresh air and ensuring user comfort.

[0095] Furthermore, this invention also proposes a computer-readable storage medium storing a control program for a fresh air conditioner. When the control program for the fresh air conditioner is executed by a processor, it implements the relevant steps of any of the above embodiments of the control method for the fresh air conditioner.

[0096] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. 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 system that includes that element.

[0097] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0098] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, fresh air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0099] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for controlling a fresh air conditioning system, characterized in that, The control method for the fresh air conditioning system includes the following steps: When the fresh air conditioner is in temperature regulation mode, the operating speed of the fresh air fan of the fresh air conditioner is obtained; in the temperature regulation mode, the indoor fan of the fresh air conditioner drives indoor air to be delivered into the room after the temperature is regulated by the fresh air conditioner. The first target speed of the indoor fan is determined based on the operating speed. Control the indoor fan to operate at the first target speed; Before obtaining the operating speed of the fresh air fan of the fresh air conditioner, the method further includes: In response to the fresh air mode start command of the fresh air conditioner, the second target speed of the fresh air fan is obtained; Control the fresh air fan to run at the second target speed and start timing to obtain the timing duration; When the timing duration reaches the first preset duration, the step of obtaining the operating speed of the fresh air fan of the fresh air conditioner is executed. The first preset duration is negatively correlated with the indoor and outdoor temperature difference. After the step of controlling the indoor fan to operate at the first target speed, the method further includes: At a second preset time interval, the temperature difference between the indoor environment and the outdoor environment where the fresh air air conditioner is located is obtained; The fresh air conditioner is adjusted according to the temperature difference value so that the temperature change of the indoor environment before and after the fresh air mode of the fresh air conditioner is turned on is less than a set threshold.

2. The control method for a fresh air conditioning system as described in claim 1, characterized in that, The first target rotational speed is positively correlated with the operating rotational speed.

3. The control method for a fresh air conditioning system as described in claim 2, characterized in that, The step of determining the first target speed of the indoor fan based on the operating speed includes: Determine the speed adjustment value corresponding to the operating speed, wherein the speed adjustment value is positively correlated with the operating speed; The current speed of the indoor fan is increased according to the speed adjustment value to obtain the first target speed.

4. The control method for a fresh air conditioning system as described in claim 1, characterized in that, After the step of obtaining the operating speed of the fresh air fan of the fresh air conditioner, the method further includes: When the operating speed is less than or equal to a preset speed threshold, the indoor fan is controlled to maintain the current speed. When the operating speed is greater than the preset speed threshold, the step of determining the first target speed of the indoor fan of the fresh air conditioner based on the operating speed is executed.

5. The control method for a fresh air conditioning system as described in claim 1, characterized in that, The fresh air conditioner includes a compressor, and the step of adjusting the fresh air conditioner according to the temperature difference value includes: When the fresh air conditioner is in cooling mode, if the temperature difference is greater than or equal to the first preset temperature difference, the frequency of the compressor is increased. When the temperature difference is less than the first preset temperature difference, the current frequency of the compressor is maintained.

6. The control method for a fresh air conditioning system as described in claim 1, characterized in that, The fresh air conditioner includes a heating module, which is used to adjust the temperature of the fresh air. The step of adjusting the fresh air conditioner according to the temperature difference value includes: When the fresh air conditioner is in heating mode, the heating module is turned on when the temperature difference is greater than or equal to the second preset temperature difference. When the temperature difference is less than the second preset temperature difference, the heating module is turned off.

7. A fresh air conditioning system, characterized in that, The fresh air conditioning unit includes: Indoor fan; Fresh air ventilator; A control device is provided, wherein both the indoor fan and the fresh air fan are connected to the control device. The control device includes: a memory, a processor, and a control program for the fresh air conditioner stored in the memory and executable on the processor. When the control program for the fresh air conditioner is executed by the processor, it implements the steps of the control method for the fresh air conditioner as described in any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a control program for a fresh air conditioner, which, when executed by a processor, implements the steps of the control method for a fresh air conditioner as described in any one of claims 1 to 6.

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