Fresh air device, its control method and storage medium

Abstract

The present invention discloses a fresh air device, its control method and storage medium. Among them, the fresh air device includes an adsorption rotor, a heat source, a blower on the air supply side and a blower on the exhaust air side. When it is determined that the fresh air device is in a shutdown state, the fresh air device obtains the shutdown duration of the heat source; and when the shutdown duration of the heat source is greater than the first duration threshold, it obtains the indoor humidity; determines the drying temperature of the adsorption rotor according to the shutdown duration of the heat source and the indoor humidity; controls the heating power of the heat source according to the drying temperature of the adsorption rotor, and controls the continuous opening duration of the heat source according to the indoor humidity. In the present invention, the control method of the fresh air device is based on a waterless humidification fresh air device using an adsorption rotor. By controlling the drying and maintenance of the adsorption rotor, it avoids the mildew of the rotor affecting the effective area of the rotor or the generation of peculiar smell in the air duct, and improves the service life of the waterless humidification device and the user's comfort experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and particularly to a fresh air device, a control method thereof, and a storage medium. Background Art

[0002] In order to increase the indoor air humidity, people generally set up a humidifier indoors, or cooperate with a fresh air system through the humidifier to improve the indoor air quality while increasing the indoor air humidity.

[0003] However, the humidification functions in related technologies usually require liquid water. The requirements for water quality, waterway installation and maintenance problems have restricted the popularization and use of these technologies. At the same time, the presence of liquid water easily causes the fresh air runner in the fresh air system to mildew, affecting the effective area of the runner or generating peculiar smells in the air duct, greatly reducing the service life of the humidification device and the user comfort experience. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems in related technologies to some extent. For this reason, an object of the present invention is to provide a control method for a fresh air device. The control method is based on a waterless humidification fresh air device using an adsorption runner. By controlling the drying and maintenance of the adsorption runner, it is possible to avoid the mildew of the runner from affecting the effective area of the runner or generating peculiar smells in the air duct, and improve the service life of the waterless humidification device and the user comfort experience.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] A third object of the present invention is to provide a first fresh air device.

[0007] A fourth object of the present invention is to provide a second fresh air device.

[0008] To achieve the above object, in a first aspect of an embodiment of the present invention, a control method for a fresh air device is provided. The fresh air device includes an adsorption runner, a heat source, a blower on the supply air side, and a blower on the exhaust air side. The heat source is used to heat outdoor fresh air. The adsorption runner is used to recover the moisture of the indoor return air passing through the blower on the exhaust air side, so that the moisture is released into the room through the blower on the supply air side along with the outdoor fresh air. The control method includes: when it is determined that the fresh air device is in a shutdown state, obtaining the shutdown duration of the heat source; when the shutdown duration of the heat source is greater than a first duration threshold, obtaining the indoor humidity; determining the drying temperature of the adsorption runner according to the shutdown duration of the heat source and the indoor humidity; controlling the heating power of the heat source according to the drying temperature of the adsorption runner, and controlling the continuous on duration of the heat source according to the indoor humidity.

[0009] The fresh air device according to an embodiment of the present invention includes an adsorption wheel, a heat source, a blower on the supply air side, and a blower on the exhaust air side. The heat source is used to heat outdoor fresh air, and the adsorption wheel is used to recover the moisture in the indoor return air passing through the blower on the exhaust air side, so that the moisture is released into the room through the blower on the supply air side along with the outdoor fresh air. When it is determined that the fresh air device is in a shutdown state, the shutdown duration of the heat source is obtained; when the shutdown duration of the heat source is greater than a first duration threshold, the indoor humidity is obtained; and the drying temperature of the adsorption wheel is determined according to the shutdown duration of the heat source and the indoor humidity; then, the heating power of the heat source is controlled according to the drying temperature of the adsorption wheel, and the continuous on duration of the heat source is controlled according to the indoor humidity. Thus, the control method of the fresh air device in the embodiment of the present invention is based on a moisture-free humidifying fresh air device using an adsorption wheel, and through the drying and maintenance control of the adsorption wheel, the mildew of the wheel affecting the effective area of the wheel or the generation of peculiar smell in the air duct is avoided, and the service life of the moisture-free humidifying device and the user comfort experience are improved.

[0010] In some embodiments of the present invention, the control method further includes: obtaining the current on duration of the heat source; when the current on duration of the heat source reaches at least one preset duration, controlling the adsorption wheel to rotate to a corresponding preset angle according to each preset duration.

[0011] In some embodiments of the present invention, when the current on duration of the heat source is equal to the continuous on duration of the heat source, the adsorption wheel rotates one week.

[0012] In some embodiments of the present invention, the continuous on duration is calculated according to the following formula: t0 = a*RH1 + b, where t0 represents the continuous on duration, RH1 represents the indoor humidity, and a and b are preset parameters respectively.

[0013] In some embodiments of the present invention, before determining that the fresh air device is in a shutdown state, the control method further includes: controlling the fresh air device to turn on the drying mode at intervals of a preset time, and determining whether the fresh air device is in a shutdown state.

[0014] In some embodiments of the present invention, the control method further includes: when it is determined that the fresh air device is not in a shutdown state, re-controlling the fresh air device to turn on the drying mode.

[0015] In some embodiments of the present invention, the control method further includes: when the shutdown duration of the heat source is less than or equal to the first duration threshold, re-controlling the fresh air device to turn on the drying mode.

[0016] In some embodiments of the present invention, after the adsorption wheel rotates one week, the control method further includes: controlling the fresh air device to exit the drying mode, and controlling the fresh air device to execute the operation mode before the drying mode is turned on.

[0017] In some embodiments of the present invention, before obtaining the indoor humidity, the control method further includes: controlling the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan to be a first preset gear.

[0018] In some embodiments of the present invention, before controlling the heating power of the heat source according to the drying temperature of the adsorption wheel, the control method further includes: controlling the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan to be a second preset gear, where the second preset gear is less than the first preset gear.

[0019] To achieve the above object, a second aspect embodiment of the present invention provides a computer-readable storage medium, on which a control program for a fresh air device is stored. When the control program for the fresh air device is executed by a processor, the control method for the fresh air device described in the above embodiments is implemented.

[0020] The computer-readable storage medium of this embodiment can avoid the adsorption wheel from getting moldy and affecting the effective area of the wheel or the air duct from generating peculiar smell by the processor executing the control program for the fresh air device stored thereon, and improve the service life of the waterless humidification device and the user comfort experience.

[0021] To achieve the above object, a third aspect of the embodiments of the present invention provides a fresh air device, including a memory, a processor, and a control program for the fresh air device stored on the memory and executable on the processor. When the processor executes the control program for the fresh air device, the control method for the fresh air device described in the above embodiments is implemented.

[0022] The fresh air device of the embodiments of the present invention includes a memory, a processor, and a control program for the fresh air device stored on the memory and executable on the processor. When the processor executes the control program for the fresh air device, it can avoid the adsorption wheel from getting moldy and affecting the effective area of the wheel or the air duct from generating peculiar smell, and improve the service life of the waterless humidification device and the user comfort experience.

[0023] To achieve the above object, a fourth aspect of the embodiments of the present invention provides a fresh air device, which includes an adsorption wheel, a heat source, a blower on the supply air side, a blower on the exhaust air side, and a control component. The heat source is used to heat outdoor fresh air, and the adsorption wheel is used to recover the moisture of the indoor return air passing through the blower on the exhaust air side, so that the moisture is released into the room through the blower on the supply air side along with the outdoor fresh air. The control component is configured to: when it is determined that the fresh air device is in a shutdown state, obtain the shutdown duration of the heat source; when the shutdown duration of the heat source is greater than a first duration threshold, obtain the indoor humidity; determine the drying temperature of the adsorption wheel according to the shutdown duration of the heat source and the indoor humidity; control the heating power of the heat source according to the drying temperature of the adsorption wheel, and control the continuous opening duration of the heat source according to the indoor humidity.

[0024] The control device of the compressor in the embodiments of the present invention includes an adsorption wheel, a heat source, a blower on the supply air side, a blower on the exhaust air side, a bypass duct, and a control component. Among them, the heat source is used to heat outdoor fresh air, and the adsorption wheel is used to recover the moisture of the indoor return air passing through the blower on the exhaust air side, so that the moisture is released into the room through the blower on the supply air side along with the outdoor fresh air. The control component is configured to: when it is determined that the fresh air device is in a shutdown state, obtain the shutdown duration of the heat source; when the shutdown duration of the heat source is greater than a first duration threshold, obtain the indoor humidity; determine the drying temperature of the adsorption wheel according to the shutdown duration of the heat source and the indoor humidity; control the heating power of the heat source according to the drying temperature of the adsorption wheel, and control the continuous opening duration of the heat source according to the indoor humidity. Thus, the fresh air device in the embodiments of the present invention controls the drying and maintenance of the adsorption wheel, avoiding the mildew of the wheel affecting the effective area of the wheel or the generation of peculiar smell in the air duct, and improving the service life of the waterless humidification device and the user comfort experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the working principle of a fresh air device according to an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of a fresh air device according to an embodiment of the present invention;

[0027] Figure 3 is a flowchart of a control method for a fresh air device according to an embodiment of the present invention;

[0028] Figure 4 is a flowchart of a control method for a fresh air device according to another embodiment of the present invention;

[0029] Figure 5 is a flowchart of a control method for a fresh air device according to a specific embodiment of the present invention;

[0030] Figure 6It is a structural block diagram of the first fresh air device according to an embodiment of the present invention;

[0031] Figure 7 It is a structural block diagram of the second fresh air device according to an embodiment of the present invention. Detailed implementation manners

[0032] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] The fresh air device, its control method and storage medium according to the embodiments of the present invention will be described below with reference to the accompanying drawings and specific implementation manners.

[0034] Currently, most fresh air devices with humidification functions usually use liquid water to relieve indoor dryness and other problems. However, this not only increases the installation cost of the water circuit and maintenance, but also the presence of liquid water easily causes the adsorption wheel to mildew, which in turn affects the effective area of the adsorption wheel or the air duct to produce peculiar smells, reducing the service life of the humidification device and the user's comfort experience. The control method of the fresh air device according to the embodiment of the present invention is based on a fresh air device with waterless humidification using an adsorption wheel, which does not require liquid water, but recycles the moisture in the indoor air. However, even without liquid water, moisture will inevitably be generated during the sensible heat and latent heat processes of the fresh air device. Although it can greatly reduce problems such as bacterial growth caused by liquid water, there is still a certain probability of bacteria generation. Therefore, in this embodiment, through the drying and maintenance control of the adsorption wheel, the mildew of the wheel is avoided from affecting the effective area of the wheel or the air duct to produce peculiar smells, improving the service life of the waterless humidification device and the user's comfort experience.

[0035] As Figure 1 shown, the fresh air device according to the embodiment of the present invention may include an adsorption wheel 1, a heat source 2, a blower on the supply side 3 and a blower on the exhaust side 4. Among them, the blower on the supply side 3 is arranged at the indoor air supply outlet for sending outdoor fresh air into the room, and the blower on the exhaust side 4 is arranged at the outdoor air exhaust outlet for discharging indoor return air to the outside. The adsorption wheel 1 is used to recover the moisture in the indoor return air and release it into the room along with the outdoor fresh air. The heat source 2 is arranged at the outdoor fresh air inlet for heating the outdoor fresh air. Among them, the heat source 2 may be a heating resistance heating tube, ceramic electric auxiliary heating, etc. Of course, it may also be a complete set of warm air equipment, etc. The present invention does not make specific limitations on the use of the heat source, and users can make specific selections according to the use environment of the fresh air device. Figure 1In it, OA (Outside Air) represents outdoor fresh air, RA (Return Air) represents indoor return air, SA (Supply Air) represents indoor supply air, and EA (Exhaust Air) represents outdoor exhaust air. The heat source 2, the adsorption rotor 1, and the supply air fan 3 form a supply air channel for supplying air to the room. The outdoor fresh air enters the room after passing through the heat source 2 and the adsorption rotor 1 in sequence under the action of the supply air fan 3; the adsorption rotor 1 and the exhaust air fan 4 form an exhaust air channel for exhausting air to the outside. The indoor return air is exhausted to the outside through the adsorption rotor 1 under the action of the exhaust air fan 4.

[0036] It should be noted that both the supply air side and the exhaust air side involved in the present invention are described with respect to the indoor environment. Among them, supply air means sending outdoor air into the room, and exhaust air means exhausting indoor air to the outside. Therefore, Figure 1 the function of the supply air side fan involved is to send outdoor fresh air into the room, and the function of the exhaust air side fan is to exhaust indoor air to the outside.

[0037] Furthermore, as shown in Figure 2 , when the rotation speed range of the adsorption rotor 1 is adjusted in the isenthalpic humidification mode, the indoor return air RA passes through the moisture absorption area, is attracted by the exhaust air side fan 4 after passing through the adsorption rotor 1, and is exhausted to the outside. During this process, the moisture in the return air is adsorbed by the adsorption rotor 1. The outdoor fresh air OA is heated by the heat source 2 and then passes through the moisture release area of the adsorption rotor 1. After passing through the adsorption rotor 1, it is attracted by the supply air side fan 3. At this time, the heated fresh air can send the moisture stored in the adsorption rotor 1 to the room to achieve the humidification function. Among them, after the waterless humidifying fresh air device stops running, maintenance control for drying the adsorption rotor 1 is carried out. The heat source 2 is turned on, and then the rotor control motor is controlled to dry the adsorption rotor 1.

[0038] Figure 3 It is a schematic flow chart of the control method of the fresh air device in an embodiment of the present invention.

[0039] As shown in the figure, the control method of the fresh air device in this embodiment includes the following steps:

[0040] S10, when it is determined that the fresh air device is in the shutdown state, obtain the shutdown duration of the heat source.

[0041] Specifically, generally, when the fresh air device is in a long-term shutdown state, it is relatively easy to breed bacteria, which will affect the health of users. And because there is a heat source in the fresh air device, the heat source can be used to dry the adsorption rotor in the fresh air device. Therefore, after it is determined that the fresh air device is in the shutdown state in this embodiment, the shutdown duration of the heat source can be further obtained to determine whether to perform a drying operation on the adsorption rotor according to the shutdown duration of the heat source, so as to be able to more accurately perform a drying operation on the adsorption rotor in the fresh air device and avoid waste of energy.

[0042] In some embodiments of the present invention, before determining that the fresh air device is in a shutdown state, the control method further includes: at every preset time, controlling the fresh air device to turn on the drying mode, and determining whether the fresh air device is in a shutdown state. When it is determined that the fresh air device is not in a shutdown state, the fresh air device is re-controlled to turn on the drying mode. Combining Figure 5 As shown, a timer can be set first. Every t1 time, the drying mode is automatically turned on. Further, the state of the fresh air device is obtained. If the state of the fresh air device is in a shutdown state, the shutdown duration t2 of the heat source is further detected. If the state of the fresh air device is not in a shutdown state, the fresh air device is controlled to shut down to ensure that the fresh air device is in a shutdown state for better drying operation of the adsorption wheel, and then the shutdown duration t2 of the heat source is obtained.

[0043] It should be noted that the interval time t1 is a preset time within 0 to 240 hours, which can be set at the factory or by the user-side controller (remote control) itself. The present invention does not make any limitations here.

[0044] It should be noted that the input end of the fresh air system may include a user-side controller, a temperature and humidity sensor, and other air sensors. Among them, the temperature and humidity sensor is used to obtain the indoor humidity. In addition, for sensors that obtain other parameters required for adjusting the operation mode, they may include, but are not limited to, air quality sensors such as CO2 sensors, PM2.5 sensors, formaldehyde sensors, and TVOC (Total Volatile Organic Compounds) sensors. No limitations are made here.

[0045] S20, when the shutdown duration of the heat source is greater than the first duration threshold, obtain the indoor humidity.

[0046] Specifically, when the fresh air device automatically turns on the drying mode at a set time, after the drying mode is turned on, the state of the fresh air device is obtained. When it is detected that the fresh air device is in a shutdown state, the shutdown duration t2 of the heat source is obtained. And when the shutdown duration of the heat source is relatively long, for example, greater than the first duration threshold, the subsequent drying operation is performed, that is, the indoor humidity is obtained first. In some embodiments of the present invention, when the shutdown duration t2 of the heat source is less than or equal to the first duration threshold, the fresh air device is re-controlled to turn on the drying mode. When the shutdown duration t2 is greater than the set first duration threshold, the indoor humidity RH (Relative Humidity) value is obtained, and then the adsorption rotor is dried according to the indoor humidity RH value. For example, when the first duration threshold is set to 20 days and the fresh air device obtains that the shutdown duration t2 of the heat source is 23 days, at this time t2 is greater than the first duration threshold, meeting the condition for performing drying, and the adsorption rotor can be dried. It should be noted that the first duration threshold is the set drying cycle, which can be a value within the range of 24 to 4800 hours and is set at the factory; the heating heat source can be in various forms such as electric heating, waste heat, waste heat, and condensation heat, which is not limited here.

[0047] S30. Determine the drying temperature of the adsorption rotor according to the shutdown duration of the heat source and the indoor humidity.

[0048] Specifically, after obtaining the shutdown duration t2 of the heat source and the indoor humidity RH1, the drying temperature T0 of the adsorption rotor is further determined according to the shutdown duration t2 of the heat source and the indoor humidity RH1. Among them, the drying temperature T0 can be obtained by looking up a table according to the shutdown duration t2 of the heat source and the indoor humidity RH1. It should be noted that in order to improve the accuracy of the return air humidity and avoid local indoor humidity imbalance, when detecting the indoor humidity RH1, the fan can be pre-controlled to operate at a high speed. It can be understood that in order to avoid interfering with the indoor ambient temperature, when the heat source is turned on, the fan can be pre-controlled to operate at a low speed.

[0049] S40. Control the heating power of the heat source according to the drying temperature of the adsorption rotor, and control the continuous opening duration of the heat source according to the indoor humidity.

[0050] Further, after determining the drying temperature T0 of the adsorption wheel according to the shutdown duration t2 of the heat source and the indoor humidity RH1, turn on the heat source, control the heating power of the heat source according to the drying temperature T0 of the adsorption wheel, adjust the drying temperature Tr to the drying temperature T0 by adjusting the heating power of the heat source, and control the continuous on-time t0 of the heat source according to the indoor humidity, so as to ensure that the adsorption wheel can be dried without having too much impact on the indoor humidity, thereby improving the comfort of the user. Where Tr is the air temperature after the heating heat source and before the adsorption wheel, with a range of -20 to 140 °C, and T0 is the drying temperature, with a range of 50 to 140 °C, which is specifically set at the factory.

[0051] As an example, the fresh air device automatically turns on the drying mode through timing settings, and at this time, the waterless humidifying fresh air device stops operating. The first preset threshold is set to 20 days. Further, the shutdown duration t2 of the heating heat source is obtained as 23 days. At this time, t2 is greater than the first preset threshold, so the drying mode is turned on. At this time, the fan is turned to the high gear. The indoor return air humidity RH1 is detected by the humidity sensor at the fan as 70%. Then the fan is adjusted to the low gear, and the heating heat source is turned on. According to the shutdown duration t2 of 23 days of the heat source and the indoor return air humidity RH1 of 70%, the drying temperature T0 of the adsorption wheel can be determined as 80 °C. The drying temperature Tr is adjusted to the value of 80 °C of the drying temperature T0 by adjusting the heating power of the heat source. The continuous on-time t0 of the heat source is controlled according to the indoor humidity RH1. After drying is completed, the drying mode is exited and the shutdown state before the drying mode is turned on is restored, thus completing the drying control process of the adsorption wheel.

[0052] In some embodiments of the present invention, the control method of the fresh air device is as Figure 4 shown and includes the following steps:

[0053] S401, obtain the current on-time of the heat source.

[0054] S402, when the current on-time of the heat source reaches the preset duration, control the adsorption wheel to rotate to the corresponding preset angle according to the preset duration.

[0055] Specifically, in combination with Figure 2As shown in the figure, the heat source 2 is on one side of the adsorption wheel 1. To ensure that the adsorption wheel 1 is evenly dried after the heat source 2 is turned on, first obtain the current on-time of the heat source 1. When the current on-time of the heat source reaches the preset time, control the adsorption wheel to rotate to the corresponding preset angle according to the preset time. It should be noted that there are multiple preset times in this embodiment. For example, when it is determined that the drying time is 60 min, 30 minutes can be used as the first preset time, and the 60th minute can be used as the second preset time, that is, first dry for 30 min, then control the adsorption wheel drive motor to drive the adsorption wheel to run 0.5 turns, that is, rotate 180°, and then continue to dry for 30 min to ensure that the adsorption wheel is evenly dried throughout the drying time. Of course, 10 minutes can also be used as the first preset time, and so on, 20 minutes, 30 minutes, 40 minutes, 50 minutes, and 60 minutes are all preset times. And every time a preset time, that is, 10 min, passes, the adsorption wheel rotates 30°, so that it just rotates one week at 60 min.

[0056] In some embodiments of the present invention, when the current on-time of the heat source is equal to the continuous on-time of the heat source, the adsorption wheel rotates one week.

[0057] For example, when the drying time is 60 min, when the on-time of the heat source is obtained as 30 min, then control the wheel drive motor to drive the wheel to run 0.5 turns, that is, rotate 180°. After the heat source continues to be on for 30 min, drive the wheel to run 0.5 turns again. When the current on-time of the heat source is equal to the drying time t0, at this time the adsorption wheel rotates one week to ensure that every part of the adsorption wheel can be dried.

[0058] In some embodiments of the present invention, the continuous on-time is calculated according to the following formula: t0 = a*RH1 + b, where t0 represents the continuous on-time, RH1 represents the indoor humidity, and a and b are preset parameters respectively.

[0059] Specifically, the drying time t0 can be a value within 5 - 240 min, which is specifically corrected according to the indoor humidity RH1, that is, t0 = a*RH1 + b, and a and b are parameters of the drying time, which can be set at the factory. For example, when the detected indoor humidity RH1 is 70%, the set parameters a = 50 and b = 25. According to the formula t0 = a*RH1 + b, t0 = 70%*50 + 25 = 60, and at this time the drying time t0 is 60 min.

[0060] In some embodiments of the present invention, after the adsorption wheel rotates one week, the control method of the fresh air device further includes: controlling the fresh air device to exit the drying mode and controlling the fresh air device to execute the operation mode before the drying mode is turned on.

[0061] Specifically, when the obtained duration of the heat source being turned on is equal to the current duration of the heat source being turned on and the drying time t0, the adsorption wheel rotates one week, the drying is completed, the drying mode is exited, and the shutdown state before the drying mode is turned on is restored, so as to more intelligently control the operation mode of the fresh air device and improve the user experience.

[0062] In some embodiments of the present invention, before obtaining the indoor humidity, the control method further includes: controlling the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan to a first preset gear.

[0063] Specifically, in order to improve the accuracy of the return air humidity and avoid local indoor humidity imbalance, when detecting the indoor humidity RH1, the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan can be pre-controlled to a high gear, and the fan operates at the high gear.

[0064] In some embodiments of the present invention, before controlling the heating power of the heat source according to the drying temperature of the adsorption wheel, the control method further includes: controlling the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan to a second preset gear, where the second preset gear is less than the first preset gear.

[0065] Specifically, in order to avoid interfering with the indoor ambient temperature, when the heat source is turned on, the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan can be pre-controlled to a low gear, and the fan operates at the low gear. It should be noted that the low gear wind speed is less than the high gear wind speed.

[0066] As a specific example of the present invention, as Figure 5 shown, this Figure 5 is a control method strategy flowchart of a fresh air device according to a specific embodiment of the present invention, and the method may include the following steps:

[0067] S501, automatically turn on the drying mode every time t1.

[0068] S502, determine whether the waterless humidifying fresh air device is shut down. If yes, execute step S503; if no, execute step S501.

[0069] S503, detect the duration t2 of the heat source being turned off.

[0070] S504, determine whether the duration t2 of the heat source being turned off is greater than or equal to the first duration threshold. If yes, execute step S505; if no, execute step S501.

[0071] S505, the fan is turned on to the high gear, and the indoor humidity RH1 is detected.

[0072] S506, the fan is adjusted to the low gear, and the heating heat source is turned on.

[0073] S507. Adjust the drying temperature Tr to T0 according to t2 and RH1, and set the drying duration to t0.

[0074] S508. When the drying duration reaches t0 / 2, the rotary wheel motor drives the rotary wheel to run 0.5 revolution, and continue drying for t0 / 2 duration.

[0075] S509. Exit the rotary wheel drying mode and continue running in the mode before drying.

[0076] In summary, the control method of the fresh air device in the embodiment of the present invention is based on the waterless humidifying fresh air device using an adsorption rotary wheel. By controlling the drying and maintenance of the adsorption rotary wheel, it can prevent the rotary wheel from mildewing and affecting the effective area of the rotary wheel or generating peculiar smell in the air duct, and improve the service life of the waterless humidifying device and the user's comfort experience.

[0077] To implement the method of the above embodiment, the embodiment of the present invention provides a computer-readable storage medium, on which a control program for the fresh air device is stored. When the control program for the fresh air device is executed by a processor, it realizes each step of the control method of the fresh air device in the above embodiment of the present invention.

[0078] The computer-readable storage medium in the embodiment of the present invention can prevent the adsorption rotary wheel from mildewing and affecting the effective area of the rotary wheel or generating peculiar smell in the air duct by the processor executing the control program for the fresh air device stored thereon, and improve the service life of the waterless humidifying device and the user's comfort experience.

[0079] Figure 6 It is the structural block diagram of the first fresh air device according to the embodiment of the present invention.

[0080] Furthermore, as Figure 6 shown, the present invention also provides a first fresh air device 60, which includes a memory 601, a processor 602, and a control program for the fresh air device stored on the memory 601 and executable on the processor 602. When the processor 602 executes the program, it realizes the control method of the fresh air device in the above embodiment.

[0081] The fresh air device in the embodiment of the present invention can prevent the rotary wheel from mildewing and affecting the effective area of the rotary wheel or generating peculiar smell in the air duct by the processor executing the control program for the fresh air device stored on the memory, and improve the service life of the waterless humidifying device and the user's comfort experience.

[0082] Figure 7 It is the structural block diagram of the second fresh air device according to the embodiment of the present invention.

[0083] Furthermore, as Figure 7As shown in the figure, the present invention proposes a second fresh air device 70, which includes an adsorption rotor 1, a heat source 2, a blower on the supply air side 3, a blower on the exhaust air side 4, and a control component 701.

[0084] Among them, the fresh air device 70 of the embodiment of the present invention includes an adsorption rotor 1, a heat source 2, a blower on the supply air side 3, a blower on the exhaust air side 4, and a control component 701. Among them, the heat source 2 is used to heat the outdoor fresh air, and the adsorption rotor 1 is used to recover the moisture in the indoor return air passing through the blower on the exhaust air side 4, so that the moisture is released into the room through the blower on the supply air side 3 along with the outdoor fresh air. The control component 701 is used to: when it is determined that the fresh air device is in a shutdown state, obtain the shutdown duration of the heat source 2; when the shutdown duration of the heat source 2 is greater than the first duration threshold, obtain the indoor humidity; determine the drying temperature of the adsorption rotor 1 according to the shutdown duration of the heat source 2 and the indoor humidity; control the heating power of the heat source 2 according to the drying temperature of the adsorption rotor 1, and control the continuous on duration of the heat source 2 according to the indoor humidity.

[0085] In an embodiment of the present invention, the control module 701 is further used to obtain the current on duration of the heat source; when the current on duration of the heat source reaches at least one preset duration, control the adsorption rotor to rotate to a corresponding preset angle according to each preset duration.

[0086] In an embodiment of the present invention, when the current on duration of the heat source is equal to the continuous on duration of the heat source, the adsorption rotor rotates one week.

[0087] In an embodiment of the present invention, the control module 701 is specifically used to calculate the continuous on duration according to the following formula: t0 = a*RH1 + b, where t0 represents the continuous on duration, RH1 represents the indoor humidity, and a and b are preset parameters respectively.

[0088] In an embodiment of the present invention, the control module 701 is further used to, before determining that the fresh air device is in a shutdown state, control the fresh air device to turn on the drying mode every preset time, and determine whether the fresh air device is in a shutdown state.

[0089] In an embodiment of the present invention, the control module 701 is further used to, when it is determined that the fresh air device is not in a shutdown state, re-control the fresh air device to turn on the drying mode.

[0090] In an embodiment of the present invention, the control module 701 is further used to, when the shutdown duration of the heat source is less than or equal to the first duration threshold, re-control the fresh air device to turn on the drying mode.

[0091] In an embodiment of the present invention, the control module 701 is further used to, after the adsorption rotor rotates one week, control the fresh air device to exit the drying mode, and control the fresh air device to execute the operation mode before the drying mode is turned on.

[0092] In one embodiment of the present invention, the control module 701 is further configured to control the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan to a first preset gear before obtaining the indoor humidity.

[0093] In one embodiment of the present invention, the control module 701 is further configured to control the air supply gear of the air supply side fan and / or the exhaust gear of the exhaust side fan to a second preset gear before controlling the heating power of the heat source according to the drying temperature of the adsorption wheel, where the second preset gear is less than the first preset gear.

[0094] In summary, the fresh air device according to the embodiment of the present invention controls the drying and maintenance of the adsorption wheel, avoids the mildew of the wheel affecting the effective area of the wheel or the generation of peculiar smell in the air duct, and improves the service life of the waterless humidification device and the user comfort experience.

[0095] It should be noted that for the details not disclosed in the fresh air device according to the embodiment of the present invention, please refer to the details disclosed in the control method of the fresh air device according to the embodiment of the present invention, and will not be elaborated here specifically.

[0096] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other suitable processing as necessary, and then stored in a computer memory.

[0097] It should be understood that each part of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0098] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0099] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0100] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0101] In the present invention, unless otherwise clearly specified or limited, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0103] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A control method for a fresh air device, characterized in that, the fresh air device includes an adsorption wheel, a heat source, a blower on the supply side and a blower on the exhaust side. The heat source is used to heat outdoor fresh air, and the adsorption wheel is used to recover the moisture of the indoor return air passing through the blower on the exhaust side, so that the moisture is released into the room through the blower on the supply side along with the outdoor fresh air. The control method includes: When it is determined that the fresh air device is in a shutdown state, obtain the shutdown duration of the heat source; When the shutdown duration of the heat source is greater than a first duration threshold, obtain the indoor humidity; Determine the drying temperature of the adsorption wheel according to the shutdown duration of the heat source and the indoor humidity; Control the heating power of the heat source according to the drying temperature of the adsorption wheel, and control the continuous opening duration of the heat source according to the indoor humidity.

2. The control method according to claim 1, characterized in that, the control method further includes: Obtain the current opening duration of the heat source; When the current opening duration of the heat source reaches a preset duration, control the adsorption wheel to rotate to a corresponding preset angle according to the preset duration.

3. The control method according to claim 2, characterized in that, When the current opening duration of the heat source is equal to the continuous opening duration of the heat source, the adsorption wheel rotates one week.

4. The control method according to claim 3, characterized in that, Calculate the continuous opening duration according to the following formula: t0 = a * RH1 + b wherein, t0 represents the continuous opening duration, RH1 represents the indoor humidity, and a and b are preset parameters respectively.

5. The control method according to claim 3, characterized in that, Before determining that the fresh air device is in a shutdown state, the control method further includes: At every preset time, control the fresh air device to turn on the drying mode, and determine whether the fresh air device is in a shutdown state.

6. The control method according to claim 5, characterized in that, the control method further includes: When it is determined that the fresh air device is not in a shutdown state, re-control the fresh air device to turn on the drying mode.

7. The control method according to claim 5, characterized in that, the control method further includes: When the shutdown duration of the heat source is less than or equal to the first duration threshold, re-control the fresh air device to turn on the drying mode.

8. The control method according to claim 5, characterized in that, After the adsorption wheel rotates one week, the control method further includes: Control the fresh air device to exit the drying mode, and control the fresh air device to execute the operation mode before the drying mode is turned on.

9. The control method according to any one of claims 1-8, characterized in that, Before obtaining the indoor humidity, the control method further includes: Control the supply air gear of the blower on the supply side and / or the exhaust air gear of the blower on the exhaust side to a first preset gear.

10. The control method according to claim 9, characterized in that, Before controlling the heating power of the heat source according to the drying temperature of the adsorption wheel, the control method further includes: Control the air supply air damper of the air supply side fan and / or the exhaust air damper of the exhaust air side fan to a second preset air damper, wherein the second preset air damper is less than the first preset air damper.

11. A computer-readable storage medium, characterized in that, a control program of a fresh air device is stored thereon, and when the control program of the fresh air device is executed by a processor, it realizes the control method of the fresh air device according to any one of claims 1-10.

12. A fresh air device, characterized in that, it includes a memory, a processor, and a control program of a fresh air device stored on the memory and operable on the processor. When the processor executes the control program of the fresh air device, it realizes the control method of the fresh air device according to any one of claims 1-10.

13. A fresh air device, characterized in that, the fresh air device includes an adsorption rotor, a heat source, an air supply side fan, an exhaust air side fan, and a control component. The heat source is used to heat outdoor fresh air, and the adsorption rotor is used to recover the moisture of the indoor return air passing through the exhaust air side fan, so that the moisture is released into the room through the air supply side fan along with the outdoor fresh air. The control component is used for: When it is determined that the fresh air device is in a shutdown state, obtain the shutdown duration of the heat source; when the shutdown duration of the heat source is greater than the first duration threshold, obtain the indoor humidity; determine the drying temperature of the adsorption rotor according to the shutdown duration of the heat source and the indoor humidity; control the heating power of the heat source according to the drying temperature of the adsorption rotor, and control the continuous on duration of the heat source according to the indoor humidity.

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