Fresh air air conditioner and control method thereof

Abstract

The present application provides a fresh air air conditioner and a control method thereof, wherein the control method comprises: obtaining environmental parameters, wherein the environmental parameters include an initial temperature difference between indoor and outdoor, an indoor air quality index, and an outdoor air quality index; and starting a corresponding operation mode according to the environmental parameters, wherein the operation mode includes a fresh air mode, an exhaust mode, a purification mode, and an alternating mode in which any two of the fresh air mode, the exhaust mode, and the purification mode are operated alternately. The control method provided by the present application can solve the technical problem that the existing fresh air air conditioner provides users with a low comfort experience.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a fresh air air conditioner and a control method thereof. Background Art

[0002] As people's requirements for indoor air quality are getting higher and higher, many existing fresh air air conditioners have fresh air modules designed with fresh air mode, exhaust mode and indoor circulation purification mode, which can respectively achieve fresh air intake, exhaust polluted air and indoor air circulation purification to meet different needs of users. However, in existing fresh air air conditioners, the three modes can only be selected or switched by users according to their needs, and users cannot accurately judge the surrounding environment, which leads to low purification efficiency of fresh air air conditioners and low comfort experience for users. Summary of the invention

[0003] The embodiment of the present application provides a control method for a fresh air air conditioner to solve the technical problem that the existing fresh air air conditioner provides a low comfort experience for users.

[0004] To achieve the above purpose, the present application proposes a control method for a fresh air air conditioner, the control method for the fresh air air conditioner comprising:

[0005] Acquiring environmental parameters, wherein the environmental parameters include an initial temperature difference between indoors and outdoors, an indoor air quality index, and an outdoor air quality index;

[0006] A corresponding operation mode is started according to the environmental parameters, and the operation mode includes a fresh air mode, an exhaust mode, a purification mode, and an alternating mode in which any two of the fresh air mode, the exhaust mode and the purification mode are operated alternately.

[0007] In one embodiment, the step of starting the corresponding operating mode according to the environmental parameter includes:

[0008] Calculating a first difference, a second difference and a third difference, wherein the first difference is the difference between the initial temperature difference and the preset temperature difference, the second difference is the difference between the indoor air quality index and the preset air quality index, and the third difference is the difference between the outdoor air and the preset air quality index;

[0009] The corresponding operating mode is turned on according to the first difference, the second difference and the third difference, and the operating mode includes a fresh air mode, an exhaust mode, a purification mode, and an alternating mode in which any two of the fresh air mode, the exhaust mode and the purification mode are operated alternately.

[0010] In one embodiment, starting the corresponding operation mode according to the first difference, the second difference and the third difference is specifically:

[0011] When the first difference is less than 0, the second difference is greater than 0, and the third difference is greater than 0, an alternating mode in which the purification mode and the exhaust mode are alternately operated is started;

[0012] When the first difference is less than 0, the second difference is greater than 0, and the third difference is less than 0, an alternating mode in which the fresh air mode and the exhaust air mode are alternately operated is turned on;

[0013] When the first difference is less than 0, the second difference is less than 0, and the third difference is greater than 0, the purification mode is turned on;

[0014] When the first difference is less than 0, the second difference is less than 0, and the third difference is less than 0, the fresh air mode is turned on;

[0015] When the first difference is greater than 0 and the third difference is less than 0, an alternating mode in which the fresh air mode and the purification mode are alternately operated is started;

[0016] When the first difference is greater than 0 and the third difference is greater than 0, the purification mode is turned on.

[0017] In one embodiment, the step of starting the alternating mode in which the purification mode and the exhaust mode are alternately operated comprises:

[0018] The purification mode and the exhaust mode operate alternately at a first preset time and a second preset time respectively, and when the current second difference is greater than 0, the first preset time is less than the second preset time, and when the current second difference is less than 0, the first preset time is greater than the second preset time.

[0019] In one embodiment, the step of starting the alternating mode in which the fresh air mode and the exhaust air mode are alternately operated comprises:

[0020] The fresh air mode and the exhaust air mode operate alternately at a third preset time and a fourth preset time respectively, and when the current second difference is greater than 0, the third preset time is less than the fourth preset time, and when the current second difference is less than 0, the third preset time is greater than the fourth preset time.

[0021] In one embodiment, the step of starting the alternating mode in which the fresh air mode and the purification mode are alternately operated comprises:

[0022] Turn on the fresh air mode and detect the current temperature difference between indoor and outdoor in real time;

[0023] Calculating a fourth difference value, where the fourth difference value is the difference between the current temperature difference value and the initial temperature difference value;

[0024] When the absolute value of the fourth difference is less than the preset change value, operating in the fresh air mode;

[0025] When the absolute value of the fourth difference is greater than the preset change value, the system operates in the purification mode.

[0026] In one embodiment, the fresh air air conditioner has an intelligent mode and a non-intelligent mode, and the control method further includes:

[0027] When the fresh air air conditioner is turned on, detecting whether the fresh air air conditioner is turned on in an intelligent mode or a non-intelligent mode;

[0028] When the fresh air air conditioner is turned on in the smart mode, executing each step of the control method according to any one of claims 1 to 8;

[0029] When the fresh air air conditioner is turned on in the non-intelligent mode, the currently set operating mode is judged and executed, and the operating mode includes a fresh air mode, an exhaust mode and a purification mode.

[0030] The present application also proposes a fresh air air conditioner, which includes a body and a control device. The control device is installed in the body and includes a memory, a processor, and a control program stored in the memory and executable on the processor. When the control program is executed by the processor, the various steps of the above-mentioned control method are implemented.

[0031] The control method of the fresh air air conditioner provided in the present application uses the initial temperature difference between indoor and outdoor, the indoor air quality index and the outdoor air quality index as a judgment condition at the same time. A plurality of different initial temperature difference between indoor and outdoor, the indoor air quality index and the outdoor air quality index correspond to a plurality of different judgment conditions, and then correspondingly open different operation modes, wherein the operation modes include a fresh air mode, an exhaust mode, a purification mode, and an alternating mode in which any two of the fresh air mode, the exhaust mode and the purification mode are operated alternately. That is, compared with the traditional fresh air air conditioner, the control method of the fresh air air conditioner in the present application is more sophisticated and intelligent in terms of judgment conditions and operation modes, and thus can refresh and purify indoor air more efficiently, improve user experience, and effectively solve the technical problem that the existing fresh air air conditioner gives users a low comfort experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 This is a flow chart of an embodiment of a control method for a fresh air air conditioner of the present application;

[0034] Figure 2 Based Figure 1 Schematic diagram of the process of step S2;

[0035] Figure 3 This is a flow chart of another embodiment of the control method of the fresh air air conditioner of the present application.

[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] The embodiment of the present application provides a control method for a fresh air air conditioner to solve the problem that the existing fresh air air conditioner provides a low comfort experience for users. The control method will be described below with reference to the accompanying drawings.

[0039] In the embodiments of the present application, Figure 1 As shown, the control method of the fresh air air conditioner includes:

[0040] Step S1: Acquire environmental parameters, which include an initial temperature difference between indoors and outdoors, an indoor air quality index, and an outdoor air quality index.

[0041] Specifically, in this step, the initial temperature difference between indoor and outdoor refers to the difference between the indoor ambient temperature and the outdoor ambient temperature when the fresh air module in the fresh air air conditioner is started. When the indoor ambient temperature has stabilized within the user's target temperature range, the indoor ambient temperature is the current indoor temperature. When actually obtaining, the current indoor ambient temperature and outdoor ambient temperature can be directly detected by the temperature sensors installed on the indoor unit and the outdoor unit respectively, and the difference between the indoor ambient temperature and the outdoor ambient temperature can be calculated by the processor to obtain the initial temperature difference.

[0042] When the fresh air module in the fresh air air conditioner is started, and the indoor ambient temperature is still changing towards the user's target temperature, you can wait until the current indoor ambient temperature reaches the user's target temperature before obtaining and calculating the initial temperature difference. Or you can directly calculate the initial temperature difference by obtaining the user's target temperature. Therefore, before obtaining the indoor and outdoor temperature difference, you can also perform the following steps:

[0043] Step S11: Obtain the current indoor temperature and the user's target temperature;

[0044] Step S12: If the user's target temperature cannot be obtained, it means that the air conditioning heat exchange mode is not turned on. At this time, it can be considered that the current indoor temperature is the temperature the user wants, so the initial temperature difference between indoor and outdoor can be directly obtained based on the current indoor temperature;

[0045] Step S13: If the user target temperature can be obtained, determine whether the current indoor temperature is within the floating range of the user target temperature. If so, obtain the initial temperature difference between indoor and outdoor according to the current indoor temperature. If not, obtain the initial temperature difference between indoor and outdoor according to the user target temperature.

[0046] It should be noted that the floating range of the user's target temperature can be 0.5°C, 1 set value reading, 1.5°C, etc., as long as the indoor temperature fluctuates within this range without making the user obviously feel the temperature drop or rise. The specific floating range value can be set by yourself.

[0047] It can be understood that the control method of the present application can determine whether the temperature difference between indoors and outdoors is large by obtaining the initial temperature difference between indoors and outdoors, thereby facilitating the selection of different operating modes, and can execute subsequent operating modes based on the principle of "ensuring that the actual temperature difference is within the floating range of the initial temperature difference", ensuring that the fresh air module will not cause the indoor temperature to change too much after operating in the corresponding operating mode, thereby ensuring the indoor temperature comfort while refreshing and purifying the air.

[0048] The indoor air quality index and the outdoor air quality index can refer to the concentration of pollutants in the air, and the higher the index value, the worse the air quality. Therefore, by obtaining the indoor air quality index and the outdoor air quality index respectively, the indoor air quality and the outdoor air quality can be known, and the corresponding operation mode can be selected more conveniently. For example, when the indoor air quality is good and the outdoor air quality is poor, it is more suitable to turn on the purification mode; or when the indoor air quality is poor and the outdoor air quality is good, it is more suitable to turn on the fresh air mode or the exhaust mode, or turn on the alternating mode of alternating operation of the fresh air mode and the purification mode in combination with the temperature difference.

[0049] Similarly, when obtaining the indoor air quality index and the outdoor air quality index, they can be detected by air sensors installed on the indoor unit and the outdoor unit respectively, wherein the air sensor can be a carbon dioxide sensor, a TVOC sensor (Total Volatile Organic Compounds sensor), a PM2.5 sensor, or other types of sensors, which can be specifically formulated according to user needs. After obtaining the required environmental parameters, the next step, i.e., step S2, can be executed.

[0050] Step S2: starting a corresponding operation mode according to the environmental parameters, wherein the operation mode includes a fresh air mode, an exhaust mode, a purification mode, and an alternating mode in which any two of the fresh air mode, the exhaust mode and the purification mode are operated alternately.

[0051] Specifically, in this step, the initial temperature difference, the indoor air quality index and the outdoor air quality index are used as judgment conditions to select the corresponding operation mode. The selectable operation modes include fresh air mode, exhaust mode, purification mode and alternating mode. Among them, when the fresh air mode is turned on, the fresh air module inhales fresh air from the outside and blows it indoors, when the exhaust mode is turned on, the fresh air module inhales indoor polluted air and discharges it outdoors, when the purification mode is turned on, the fresh air module inhales indoor air and blows it back indoors after purification through the filter (that is, it neither inhales outdoor air nor discharges indoor air), and when the alternating mode is turned on, any two of the fresh air mode, exhaust mode and purification mode are operated alternately, and which two modes are specifically required to be determined based on the initial temperature difference, the indoor air quality index and the outdoor air quality index at the same time.

[0052] Therefore, it can be understood that compared with traditional fresh air air conditioners, the control method of the fresh air air conditioner in the present application is more sophisticated and intelligent in judging conditions and operating modes, and can thus more efficiently refresh and purify indoor air, improve user experience, and effectively solve the technical problem that existing fresh air air conditioners provide users with a low level of comfort experience.

[0053] Regarding the selection of the operation mode, specifically, in one embodiment, as Figure 2 As shown, step S2 includes:

[0054] Step S21: Calculate a first difference, a second difference and a third difference, wherein the first difference is the difference between the initial temperature difference and the preset temperature difference, the second difference is the difference between the indoor air quality index and the preset air quality index, and the third difference is the difference between the outdoor air and the preset air quality index.

[0055] The preset temperature difference is a reference value for judging whether the temperature difference between indoor and outdoor is large or small. Its specific size can be set according to the actual situation. For example, in a specific embodiment, the preset temperature difference is set to 3°C. When the initial temperature difference is greater than or equal to 3°C, it can be considered that the temperature difference between indoor and outdoor is large. When turning on the fresh air module, it is necessary to pay attention to the impact of the outdoor temperature on the indoor temperature. When the initial temperature difference is less than 3°C, it can be considered that the temperature difference between indoor and outdoor is small. When the fresh air mode is turned on, the impact on the indoor temperature will not be too great.

[0056] The preset air quality index is a reference value for judging whether the indoor and outdoor air quality is good or not. Its specific size needs to be determined according to the type of pollutants and the "Indoor Air Quality Standard", which can be achieved according to the existing technology. For example, in a specific embodiment, IAQ represents the indoor air quality index, OAQ represents the outdoor air quality index, and AQ represents the preset air quality index. When IAQ is less than AQ, it means that the indoor air quality is good, and when IAQ is greater than AQ, it means that the indoor air quality is poor. Similarly, when OAQ is less than AQ, it means that the outdoor air quality is good, and when OAQ is greater than AQ, it means that the outdoor air quality is poor.

[0057] Of course, in some other embodiments, the quality of indoor air and outdoor air can also be determined by a preset air quality range, for example, the preset air quality index is divided into three levels, namely AQ1, AQ2, and AQ3, and the values ​​of AQ1, AQ2, and AQ3 increase successively, and the larger the value, the worse the air quality. Then, the following settings can be made: when the air quality index is less than AQ1, the air quality is excellent, when the air quality index is greater than AQ1 and less than AQ2, the air quality is good, when the air quality index is greater than AQ2 and less than AQ3, the air quality is medium, and when the air quality index is greater than AQ3, the air quality is poor. In this way, the judgment conditions can be more refined, and the indoor air can be refreshed and purified more efficiently.

[0058] Step S22: When the first difference is less than 0, the second difference is greater than 0, and the third difference is greater than 0, the alternating mode of alternating operation of the purification mode and the exhaust mode is turned on. Specifically, the first difference is less than 0, indicating that the initial temperature difference is less than the preset temperature difference, that is, the temperature difference between indoor and outdoor is small. The second difference is greater than 0, indicating that the indoor air quality index is greater than the preset air quality index, that is, the indoor air quality is poor. The third difference is greater than 0, indicating that the outdoor air quality index is greater than the preset air quality index, that is, the outdoor air quality is also poor.

[0059] However, because the outdoor air quality is also poor, it is not suitable to turn on the fresh air mode. Because the temperature difference between indoor and outdoor is small, the impact on the indoor temperature after exhausting the indoor air will not be too great. Therefore, after turning on the alternating mode of purification mode and exhaust mode, the indoor pollutants can be discharged to the outside, and the air retained in the room can be circulated and purified at the same time, thereby maximizing the efficiency of freshness and purification without affecting the indoor temperature, thereby improving the user experience.

[0060] Regarding the specific manner in which the purification mode and the exhaust mode are alternately operated, in one embodiment, step S22 includes:

[0061] The purification mode and the exhaust mode are operated alternately at a first preset time and a second preset time respectively, and when the current second difference is greater than 0, the first preset time is less than the second preset time, and when the current second difference is less than 0, the first preset time is greater than the second preset time. Specifically, because in step S22, the second difference is greater than 0 at the beginning, that is, the indoor air quality is poor, the first preset time needs to be less than the second preset time, that is, the operation time of the purification mode is shorter and the operation time of the exhaust mode is longer, so as to discharge indoor pollutants as soon as possible and improve the air quality.

[0062] When there are no other pollution sources indoors, with the alternating operation of the exhaust mode and the purification mode, the indoor air quality will gradually improve, that is, the indoor air quality index will gradually decrease and be less than the preset air quality index, that is, the second difference changes to less than 0. At this time, the indoor air quality is good, and the running time of the exhaust mode can be reduced, and the running time of the purification mode can be increased, that is, the first preset time becomes greater than the second preset time, so as to avoid discharging a large amount of good quality air indoors, and at the same time continuously improve the indoor air quality through the purification mode.

[0063] Of course, it is also possible that the indoor air quality is getting worse and worse, for example, there are other pollution sources indoors (for example, the user is smoking, the kitchen is in use, etc.) that continue to release pollutants. At this time, the second difference is always greater than 0, and then the first preset time will be less than the second preset time until the air quality improves.

[0064] In one embodiment, the step S2 further includes:

[0065] Step S23: When the first difference is less than 0, the second difference is greater than 0, and the third difference is less than 0, the alternating mode of the fresh air mode and the exhaust mode is turned on. It can also be understood that the first difference is less than 0, indicating that the initial temperature difference is less than the preset temperature difference, that is, the temperature difference between indoor and outdoor is small. The second difference is greater than 0, indicating that the indoor air quality index is greater than the preset air quality index, that is, the indoor air quality is poor. The third difference is less than 0, indicating that the outdoor air quality index is less than the preset air quality index, that is, the outdoor air quality is good.

[0066] Because the outdoor air quality is good, turning on the fresh air mode can better improve the indoor air quality. Because the temperature difference between indoor and outdoor is small, the impact of inhaling fresh air on the indoor temperature will not be too great. Therefore, in order to more efficiently refresh and purify the indoor air, this step turns on the alternating mode of the fresh air mode and the exhaust mode. At this time, the outdoor air is introduced into the room, and the indoor pollutants are discharged outdoors, which can greatly improve the purification efficiency without affecting the indoor temperature.

[0067] Regarding the specific manner in which the purification mode and the exhaust mode are alternately operated, in one embodiment, step S23 includes:

[0068] The fresh air mode and the exhaust mode are operated alternately at the third preset time and the fourth preset time respectively, and when the current second difference is greater than 0, the third preset time is less than the fourth preset time, and when the current second difference is less than 0, the third preset time is greater than the fourth preset time. Similarly, because in step S23, the second difference is greater than 0 at the beginning, that is, the indoor air quality is poor, the third preset time needs to be less than the second preset time, that is, the operation time of the fresh air mode is shorter and the operation time of the exhaust mode is longer, so as to discharge indoor pollutants as soon as possible and improve the air quality.

[0069] When there are no other pollution sources indoors, with the alternating operation of the fresh air mode and the exhaust mode, the indoor air quality will gradually improve, that is, the indoor air quality index will gradually decrease and be less than the preset air quality index, that is, the second difference changes to less than 0. At this time, the indoor air quality is good, and the running time of the exhaust mode can be reduced, and the running time of the fresh air mode can be increased, that is, the third preset time becomes greater than the fourth preset time, to avoid discharging a large amount of indoor air with good quality. At the same time, the fresh air mode is used to continuously inhale outdoor air to dilute the concentration of indoor pollutants and improve the indoor air quality.

[0070] Of course, it is also possible that the indoor air quality is getting worse and worse, for example, there are other pollution sources indoors (for example, the user is smoking, the kitchen is in use, etc.) that continue to release pollutants. At this time, the second difference is always greater than 0, and then the first preset time will be less than the second preset time until the air quality improves.

[0071] In one embodiment, the step S2 further includes:

[0072] Step S24: When the first difference is less than 0, the second difference is less than 0, and the third difference is greater than 0, the purification mode is turned on. The first difference is less than 0, which means that the initial temperature difference is less than the preset temperature difference, that is, the temperature difference between indoor and outdoor is small. The second difference is less than 0, which means that the indoor air quality index is less than the preset air quality index, that is, the indoor air quality is good. The third difference is greater than 0, which means that the outdoor air quality index is greater than the preset air quality index, that is, the outdoor air quality is poor. Therefore, turning on the purification mode will neither inhale outdoor air with poor quality nor blow indoor air with good quality out to the outside, and can also continuously improve the indoor air quality without affecting the indoor temperature. That is, under the environmental parameters in this step, choosing to turn on the purification mode is the best choice to quickly improve the indoor air quality, making the fresh air air conditioner more intelligent.

[0073] Step S25: When the first difference is less than 0, the second difference is less than 0, and the third difference is less than 0, the fresh air mode is turned on. The first difference is less than 0, which means that the initial temperature difference is less than the preset temperature difference, that is, the temperature difference between indoor and outdoor is small. The second difference is less than 0, which means that the indoor air quality index is less than the preset air quality index, that is, the indoor air quality is good. The third difference is less than 0, which means that the outdoor air quality index is less than the preset air quality index, that is, the outdoor air quality is also good. Therefore, choosing to turn on the fresh air mode can continuously introduce better quality air to improve the indoor air quality, while not requiring the use of the filter in the fresh air module, and will not discharge the better quality indoor air. While efficiently purifying the indoor air, it reduces the use of the filter in the fresh air module, thereby reducing the frequency of filter replacement and reducing the cost of use.

[0074] In one embodiment, the step S2 further includes:

[0075] Step S26: When the first difference is greater than 0 and the third difference is less than 0, the alternating mode of the fresh air mode and the purification mode is turned on. The first difference is greater than 0, indicating that the initial temperature difference is greater than the preset temperature difference, that is, the temperature difference between indoor and outdoor is large. The third difference is less than 0, indicating that the outdoor air quality index is less than the preset air quality index, that is, the outdoor air quality is good.

[0076] Because the outdoor air quality is good, turning on the fresh air mode can better improve the indoor air quality. Because the temperature difference between indoor and outdoor is large, the inhalation of fresh air will affect the indoor temperature, causing the indoor temperature to change. Therefore, in order to efficiently refresh and purify the indoor air while ensuring that the indoor temperature remains within a stable range, this step turns on the alternating mode of the fresh air mode and the purification mode. At this time, the outdoor fresh air is first introduced through the fresh air mode to improve the indoor air quality. Because the temperature difference between indoor and outdoor is large, taking the outdoor temperature as an example, the outdoor fresh air is higher than the indoor temperature. After the outdoor fresh air is introduced into the room, the indoor temperature will rise, which may affect the user's comfort. Therefore, after the indoor temperature rises to a certain temperature, the operation mode can be switched to the purification mode. At this time, the indoor air can be purified and the indoor temperature can be gradually returned to the user's target temperature. When the indoor temperature falls back to the user's target temperature or falls back to the floating range of the user's target temperature, the operation mode can be switched to the fresh air mode again. This cycle is repeated, and the stability of the indoor temperature can be ensured on the basis of efficient freshness and purification of the indoor air. Improve the user experience comfort.

[0077] Among them, for the specific manner of alternating operation of the fresh air mode and the purification mode, in one embodiment, step S26 includes:

[0078] Step S261: Turn on the fresh air mode and detect the current temperature difference between indoor and outdoor in real time.

[0079] Step S262: Calculate the fourth difference, which is the difference between the current temperature difference and the initial temperature difference; when the absolute value of the fourth difference is less than the preset change value, operate in the fresh air mode; when the absolute value of the fourth difference is greater than the preset change value, operate in the purification mode.

[0080] Specifically, the fourth difference is the difference between the current temperature difference and the initial temperature difference, which indicates the change in the indoor and outdoor temperature difference. The preset change value can be set to 2°C, 2.5°C, 3°C, etc. The specific value can be set according to the actual situation. When the fourth difference is greater than the preset change value, it means that the indoor and outdoor temperature difference has changed greatly. When the default outdoor temperature is basically unchanged, it means that the indoor temperature has changed greatly. At this time, it is necessary to stop introducing fresh air and switch the operation mode to purification mode, so as to purify while returning the indoor temperature to the floating range of the user's target temperature. When the indoor temperature returns to the floating range of the user's target temperature, the current temperature difference between indoor and outdoor is similar to the initial temperature difference, so the fourth difference is small, and when it is less than the preset change value, the operation mode can be switched to fresh air mode, and fresh air can continue to be introduced without affecting the indoor temperature, thereby purifying the indoor air more efficiently.

[0081] For example, assume that the preset air quality index is 5, the preset temperature difference is 3°C, and the preset change is 2°C. When the indoor temperature is 24°C, the outdoor temperature is 30°C, the indoor air quality IAQ=6, and the outdoor air quality OAQ=2, the absolute value of the indoor and outdoor temperature difference is 6°C, and 6°C is greater than 3°C, indicating that the indoor and outdoor temperature difference is large. Indoor air quality IAQ=6 and greater than 5 indicates that the indoor air quality is poor. Outdoor air quality OAQ=2 and less than 5 indicates that the outdoor air quality is good. Therefore, it is necessary to turn on the alternating mode of fresh air mode and purification mode to ensure that while inhaling fresh outdoor air, it will not cause too much impact on the indoor temperature used by the user. During specific operation, the fresh air mode is first run, and the current temperature difference between indoor and outdoor is detected in real time, and the fourth difference is calculated. When the fourth difference is greater than or equal to 2°C, it is switched to purification mode, and when the fourth difference is less than 2°C, it is switched to fresh air mode.

[0082] Step S27: When the first difference is greater than 0 and the third difference is greater than 0, the purification mode is turned on. Among them, the first difference is greater than 0, which means that the initial temperature difference is greater than the preset temperature difference, that is, the temperature difference between indoor and outdoor is large. The third difference is greater than 0, which means that the outdoor air quality index is greater than the preset air quality index, that is, the outdoor air quality is poor. At this time, by turning on the purification mode, the air with poor outdoor air quality will not be sucked into the room, and the situation where the outdoor air with poor quality and large temperature difference is squeezed into the room due to the decrease in indoor air pressure will not occur, thereby ensuring the indoor temperature comfort while continuously purifying the indoor air.

[0083] In one embodiment, if Figure 3 As shown, the fresh air air conditioner has an intelligent mode and a non-intelligent mode, and the control method also includes:

[0084] Step S10: When the fresh air air conditioner is turned on, it is detected whether the fresh air air conditioner is turned on in the intelligent mode or the non-intelligent mode; specifically, when the fresh air module in the fresh air air conditioner is turned on, it is detected whether the segment is turned on in the intelligent mode or the non-intelligent mode. In this embodiment, the intelligent mode means that the user has not set the operation mode of the fresh air module, and the fresh air air conditioner can automatically control the specific operation mode of the fresh air module. The non-intelligent mode means that the user has set the operation mode of the fresh air module, and the fresh air module directly operates according to the operation mode set by the user.

[0085] Step S20: When the fresh air air conditioner is turned on in the smart mode, the above steps S1 and S2 are executed; the specific contents of steps S1 and S2 refer to the above description and will not be repeated here. As can be seen from the above description, by executing steps S1 and S2, the corresponding operation mode can be turned on according to the actual environmental parameters, thereby refreshing and purifying the indoor air more efficiently, improving the user experience, and effectively solving the technical problem that the existing fresh air air conditioner provides users with a low comfort experience.

[0086] Step S30: When the fresh air air conditioner is turned on in the non-intelligent mode, the currently set operation mode is judged and executed, and the operation mode includes the fresh air mode, the exhaust mode and the purification mode. For example, when the user believes that fresh air needs to be introduced according to the actual situation and sets the fresh air module to operate in the fresh air mode, the fresh air module directly operates in the fresh air mode to meet the user's usage requirements.

[0087] It can be understood that by providing the choice of smart mode and non-smart mode, not only can the user experience be improved, but the functions of the fresh air air conditioner can also be made more diversified and intelligent.

[0088] The present application also proposes a fresh air air conditioner, the fresh air air conditioner includes a body and a control device, the control device is installed in the body, and includes a memory, a processor, and a control program stored in the memory and executable on the processor, and the control program implements each step of the above control method when executed by the processor. The specific structure of the fresh air air conditioner is not limited, and it only needs to have a fresh air mode, an exhaust mode, and a purification mode.

[0089] The above is a detailed introduction to a fresh air air conditioner and its control method provided in the embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A control method for a fresh air air conditioner, characterized in that: include: Acquiring environmental parameters, wherein the environmental parameters include an initial temperature difference between indoors and outdoors, an indoor air quality index, and an outdoor air quality index; Calculating a first difference, a second difference, and a third difference, wherein the first difference is the difference between the initial temperature difference and the preset temperature difference, the second difference is the difference between the indoor air quality index and the preset air quality index, and the third difference is the difference between the outdoor air and the preset air quality index, and starting a corresponding operation mode according to the first difference, the second difference, and the third difference, wherein the operation mode includes a fresh air mode, an exhaust mode, a purification mode, and an alternating mode in which any two of the fresh air mode, the exhaust mode, and the purification mode are operated alternately; The method of starting the corresponding operation mode according to the first difference, the second difference and the third difference is as follows: When the first difference is less than 0, the second difference is greater than 0, and the third difference is greater than 0, an alternating mode in which the purification mode and the exhaust mode are alternately operated is started; When the first difference is less than 0, the second difference is greater than 0, and the third difference is less than 0, an alternating mode in which the fresh air mode and the exhaust air mode are alternately operated is turned on; When the first difference is less than 0, the second difference is less than 0, and the third difference is greater than 0, the purification mode is turned on; When the first difference is less than 0, the second difference is less than 0, and the third difference is less than 0, the fresh air mode is turned on; When the first difference is greater than 0 and the third difference is less than 0, an alternating mode in which the fresh air mode and the purification mode are alternately operated is started; When the first difference is greater than 0 and the third difference is greater than 0, the purification mode is turned on.

2. The control method according to claim 1, characterized in that: The step of starting the alternating mode in which the purification mode and the exhaust mode are alternately operated comprises: The purification mode and the exhaust mode operate alternately at a first preset time and a second preset time respectively, and when the current second difference is greater than 0, the first preset time is less than the second preset time, and when the current second difference is less than 0, the first preset time is greater than the second preset time.

3. The control method according to claim 1, characterized in that: The step of starting the alternating mode in which the fresh air mode and the exhaust air mode are alternately operated comprises: The fresh air mode and the exhaust air mode operate alternately at a third preset time and a fourth preset time respectively, and when the current second difference is greater than 0, the third preset time is less than the fourth preset time, and when the current second difference is less than 0, the third preset time is greater than the fourth preset time.

4. The control method according to claim 1, characterized in that: The step of starting the alternating mode in which the fresh air mode and the purification mode are alternately operated comprises: Turn on the fresh air mode and detect the current temperature difference between indoor and outdoor in real time; Calculating a fourth difference value, where the fourth difference value is the difference between the current temperature difference value and the initial temperature difference value; When the absolute value of the fourth difference is less than the preset change value, operating in the fresh air mode; When the absolute value of the fourth difference is greater than the preset change value, the system operates in the purification mode.

5. The control method according to any one of claims 1 to 4, characterized in that: The fresh air air conditioner has an intelligent mode and a non-intelligent mode, and the control method further includes: When the fresh air air conditioner is turned on, detecting whether the fresh air air conditioner is turned on in an intelligent mode or a non-intelligent mode; When the fresh air air conditioner is turned on in the smart mode, executing each step of the control method according to any one of claims 1 to 4; When the fresh air air conditioner is turned on in the non-intelligent mode, the currently set operating mode is judged and executed, and the operating mode includes a fresh air mode, an exhaust mode and a purification mode.

6. A fresh air air conditioner, characterized in that: include: Body; as well as A control device is installed in the body and includes a memory, a processor, and a control program stored in the memory and executable on the processor. When the control program is executed by the processor, each step of the control method as described in any one of claims 1 to 5 is implemented.

Images