Control Method, Storage Medium, and Fresh Air Device of Fresh Air Device

Abstract

Control method, storage medium, and fresh air device of the fresh air device of the present invention. The fresh air device includes an adsorption rotor, a return air duct, and a fresh air duct. The driving motor is surrounded by an enclosure structure with a notch. When the driving motor rotates forward, the enclosure structure maintains its current position. When the driving motor rotates backward, the enclosure structure rotates with the driving motor to adjust the position of the notch. The control method of the fresh air device includes: when it is determined that the fresh air device meets the first preset condition, obtaining the indoor return air temperature and the outdoor fresh air temperature of the fresh air device; when the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, controlling the driving motor to rotate backward by a preset angle so that the notch is in the fresh air duct, thereby being able to utilize the heat generated by the operation of the driving motor in the fresh air device to improve the heat recovery efficiency, and at the same time dissipate heat from the driving motor to improve the operation efficiency, reliability, and user experience of the fresh air device.

Description

Technical Field

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

[0002] According to some latest policy requirements of the country and some regions, fresh air systems must be equipped in enclosed public places and newly built residences. By exchanging indoor and outdoor air, the fresh air system can greatly improve air quality and enhance human comfort.

[0003] In related technologies, a fresh air blower is usually used to introduce outdoor fresh air into the room. However, if the air conditioner is started indoors in summer or winter, the outdoor fresh air will seriously affect the indoor temperature and humidity. Even though some fresh air blowers in related technologies can recover the cooling or heating capacity indoors, due to the long-term operation of the fresh air blower, the service life of its driving motor and the operating efficiency of the fresh air blower will be affected to varying degrees, thereby reducing the user experience. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in related technologies to some extent. For this purpose, one object of the present invention is to provide a control method for a fresh air device, which can improve the heat recovery efficiency by using the heat generated by the operation of the driving motor in the fresh air device, and at the same time dissipate heat from the driving motor to improve the operating efficiency, reliability, and user experience of the fresh air device.

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

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

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

[0008] To achieve the above object, an embodiment of the first aspect of the present invention provides a control method for a fresh air device. The fresh air device includes an adsorption wheel, a return air duct, and a fresh air duct. A driving motor is disposed at the central position of the adsorption wheel, and the driving motor controls the adsorption wheel to rotate in the return air duct and the fresh air duct. The driving motor is surrounded by an enclosure structure with a notch. When the driving motor rotates forward, the enclosure structure maintains its current position. When the driving motor rotates in reverse, the enclosure structure rotates with the driving motor to adjust the position of the notch. The control method includes: when it is determined that the fresh air device meets a first preset condition, obtaining the indoor return air temperature and the outdoor fresh air temperature of the fresh air device; when the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than a temperature threshold, controlling the driving motor to rotate in reverse by a preset angle so that the notch is in the fresh air duct.

[0009] In this embodiment, the fresh air device includes an adsorption wheel, a return air duct, and a fresh air duct. A driving motor is disposed at the central position of the adsorption wheel, and the driving motor can control the adsorption wheel to rotate in the return air duct and the fresh air duct to perform sensible heat and latent heat exchange on the indoor return air and the outdoor fresh air, so as to recover the energy of the indoor return air. The driving motor is surrounded by an enclosure structure with a notch. When the driving motor rotates forward, the enclosure structure does not move, so the notch remains in its original position. When the driving motor rotates in reverse, it can drive the enclosure structure to rotate, so that the notch also rotates. The control method of the fresh air device can determine whether the driving motor rotates in reverse according to the difference between the indoor return air temperature and the outdoor fresh air temperature, and adjust the position of the notch, so that the heat dissipated by the driving motor during operation in the fresh air device can be utilized through the notch to improve the heat recovery efficiency, and at the same time, the driving motor is cooled, thereby improving the operating efficiency, reliability, and user experience of the fresh air device.

[0010] In some embodiments of the present invention, the fresh air device includes a total heat recovery mode. The control method includes: obtaining a total heat recovery mode selection instruction of the fresh air device; determining that the operating mode of the fresh air device is the total heat recovery mode according to the total heat recovery mode selection instruction, and controlling the rotation speed of the adsorption wheel to be a preset rotation speed so that the adsorption wheel performs sensible heat and latent heat alternation according to the indoor return air and the outdoor fresh air.

[0011] In some embodiments of the present invention, determining that the fresh air device meets the first preset condition includes: obtaining the operating mode of the fresh air device at preset intervals, and when the operating mode of the fresh air device is the total heat recovery mode, determining that the fresh air device meets the first preset condition.

[0012] In some embodiments of the present invention, the control method further includes: when the operation mode of the fresh air device is a non-total heat recovery mode, detecting whether the notch is in the return air duct, and when the notch is in the return air duct, re-obtaining the operation mode of the fresh air device.

[0013] In some embodiments of the present invention, the control method further includes: when the notch is not in the return air duct, controlling the drive motor to reverse by the preset angle so that the notch is in the return air duct, and then re-obtaining the operation mode of the fresh air device.

[0014] In some embodiments of the present invention, the control method further includes: after controlling the drive motor to reverse by the preset angle, further controlling the drive motor to resume forward rotation.

[0015] In some embodiments of the present invention, the control method further includes: after controlling the drive motor to resume forward rotation, re-determining whether the fresh air device meets the first preset condition.

[0016] To achieve the above object, a second aspect embodiment of the present invention proposes 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 according to the above embodiments is implemented.

[0017] The computer-readable storage medium in the embodiments of the present invention can improve the heat recovery efficiency by using the heat generated by the operation of the drive motor in the fresh air device and simultaneously dissipate heat from the drive motor through the processor executing the control program for the fresh air device stored thereon, so as to improve the operation efficiency, reliability and user experience of the fresh air device.

[0018] To achieve the above object, a third aspect embodiment of the present invention proposes a first fresh air device, which 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, the control method for the fresh air device according to the above embodiments is implemented.

[0019] The first fresh air device in the embodiments of the present invention can improve the heat recovery efficiency by using the heat generated by the operation of the drive motor in the fresh air device and simultaneously dissipate heat from the drive motor through the processor executing the control program for the fresh air device stored on the memory, so as to improve the operation efficiency, reliability and user experience of the fresh air device.

[0020] To achieve the above object, the second aspect of the embodiments of the present invention provides a second fresh air device, which includes an adsorption wheel, a return air duct, a fresh air duct, and a control component. A driving motor is disposed at the central position of the adsorption wheel, and the driving motor controls the adsorption wheel to rotate in the return air duct and the fresh air duct. The driving motor is surrounded by an enclosure structure with a notch. When the driving motor rotates forward, the enclosure structure maintains its current position. When the driving motor rotates reversely, the enclosure structure rotates with the driving motor to adjust the position of the notch. The control component is configured to: when it is determined that the fresh air device meets a first preset condition, obtain the indoor return air temperature and the outdoor fresh air temperature of the fresh air device; when the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than a temperature threshold, control the driving motor to rotate reversely by a preset angle so that the notch is in the fresh air duct.

[0021] In this embodiment, the fresh air device includes an adsorption wheel, a return air duct, a fresh air duct, and a control component. Among them, a driving motor is disposed at the central position of the adsorption wheel, and the driving motor can control the adsorption wheel to rotate in the return air duct and the fresh air duct to perform sensible heat and latent heat exchange on the indoor return air and the outdoor fresh air, so as to recover the energy of the indoor return air. The driving motor is surrounded by an enclosure structure with a notch. When the driving motor rotates forward, the enclosure structure does not move, so the notch maintains its original position. When the driving motor rotates reversely, it can drive the enclosure structure to rotate, so that the notch also rotates accordingly. The control component can determine whether to reverse the driving motor according to the difference between the indoor return air temperature and the outdoor fresh air temperature, and adjust the position of the notch, so as to utilize the heat dissipated by the driving motor during operation in the fresh air device through the notch, improve the heat recovery efficiency, and at the same time dissipate heat from the driving motor, thereby improving the operating efficiency, reliability of the fresh air device and the user experience.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a fresh air device according to an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of a fresh air device according to another embodiment of the present invention;

[0025] Figure 3 is a flowchart of a control method for a fresh air device according to an embodiment of the present invention;

[0026] Figure 4It is a flowchart of the control method of the fresh air device in a specific embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the first fresh air device in an embodiment of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the second fresh air device in an embodiment of the present invention. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which 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 by referring to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] The control method, storage medium, and fresh air device of the fresh air device according to the embodiments of the present invention will be described below with reference to the drawings.

[0031] Figure 1 It is a schematic structural diagram of the fresh air device in an embodiment of the present invention.

[0032] As Figure 1 shown, the fresh air device includes an adsorption wheel 1, a return air duct S1, and a fresh air duct S2. Among them, the return air duct S1 and the fresh air duct S2 are divided by a dotted line in the middle of the adsorption wheel 1, and the adsorption wheel 1 can rotate in the return air duct S1 and the fresh air duct S2 to perform sensible and latent heat exchange on the indoor return air and the outdoor fresh air, so as to recover the heat or cold of the indoor return air. In addition, the fresh air device may further include a heat source 2, a supply side fan 3, and an exhaust side fan 4. Among them, the fresh air device further includes an indoor air supply port, an outdoor fresh air inlet, an indoor return air inlet, and an outdoor exhaust outlet. SA (Supply Air, indoor air supply) is sent to the room through the indoor air supply port, OA (Outside Air, outdoor fresh air) enters the fresh air device through the outdoor fresh air inlet, RA (Return Air, indoor return air) enters the fresh air device through the indoor return air inlet, and EA (Exhaust Air, outdoor exhaust air) is discharged outdoors through the indoor exhaust outlet.

[0033] In this embodiment, the adsorption wheel 1 is in the return air duct S1. When the indoor return air passes through the adsorption wheel 1, the adsorption wheel 1 can recover the moisture, cold, or heat in the indoor return air. When the adsorption wheel 1 rotates to the fresh air duct S2, when the outdoor fresh air passes through the adsorption wheel 1, it can bring the moisture, cold, or heat adsorbed in the adsorption wheel 1 into the indoor environment, thereby completing humidification, cold recovery, or heat recovery of the room, etc.

[0034] Furthermore, asFigure 2 As described above, a driving motor M is provided at the central position of the adsorption wheel 1 in this embodiment. The driving motor M controls the rotation of the adsorption wheel 1 in the return air duct S1 and the fresh air duct S2. The driving motor M is surrounded by an enclosure structure A having a notch K. Among them, when the driving motor M rotates forward, the enclosure structure A maintains its current position. When the driving motor M rotates in reverse, the enclosure structure A rotates with the driving motor M to adjust the position of the notch K.

[0035] Specifically, as Figure 2 shown, the notch K of the enclosure structure A in the figure is in the return air duct S1. When the driving motor M drives the adsorption wheel 1 to rotate forward, the enclosure structure A remains in its current position and the notch K does not move. When the driving motor M rotates in reverse, it can drive the enclosure structure A to rotate together, thereby moving the notch K, and the notch K can be adjusted in the fresh air duct S2. Optionally, the driving motor M and the adsorption wheel 1 can be connected by a belt or a gear to drive the rotation of the adsorption wheel 1 according to a certain transmission ratio. Among them, the driving motor M and the enclosure structure A can be connected by a one-way ratchet structure. The one-way ratchet can be arranged inside the enclosure structure A. When the driving motor M rotates forward, there is no relative force between the connecting rod structure of the motor shaft and the one-way ratchet of the enclosure structure A. When the driving motor M rotates in reverse, the connecting rod structure of the motor shaft meshes with the one-way ratchet in the enclosure structure A so that the motor shaft can drive the enclosure structure A to rotate, thereby adjusting the position of the notch K.

[0036] Figure 3 It is a flowchart of the control method of the fresh air device according to an embodiment of the present invention.

[0037] As Figure 3 shown, the present invention proposes a control method for a fresh air device. This control method can be applied to the fresh air device shown in Figure 1 or Figure 2 . The control method of this fresh air device includes the following steps:

[0038] S10. When it is determined that the fresh air device meets the first preset condition, obtain the indoor return air temperature and the outdoor fresh air temperature of the fresh air device.

[0039] Specifically, the control method in this embodiment is applied when the fresh air device is in the state of total heat recovery. Specifically, when the fresh air device is in the total heat recovery state, the heat dissipated by the driving motor is recovered. Among them, it is necessary to first determine whether the fresh air device meets the first preset condition. If it meets, then further perform subsequent heat recovery operations, such as obtaining the indoor return air temperature and the outdoor fresh air temperature of the fresh air device, etc.

[0040] Determining that the fresh air device in this embodiment meets the first preset condition includes: obtaining the operating mode of the fresh air device at preset intervals. When the operating mode of the fresh air device is the total heat recovery mode, it is determined that the fresh air device meets the first preset condition. Among them, the operating mode of the fresh air device can be that the user issues a selection instruction through devices such as a remote control or a smart terminal, or the fresh air device automatically switches according to the changes in indoor air temperature and humidity. Here, the specific entry method thereof may not be limited. After obtaining the total heat recovery mode selection instruction, the operating mode of the fresh air device can be determined as the total heat recovery mode according to the total heat recovery selection instruction, and then the adsorption wheel is controlled to rotate at a preset speed corresponding to the total heat recovery mode, so that the adsorption wheel can alternately perform sensible heat and latent heat according to the indoor return air and the outdoor fresh air, and complete the recovery of the energy of the indoor return air. Optionally, the value range of the preset time in this embodiment can be 0 to 240 hours.

[0041] It can be understood that after determining that the fresh air device is in the total heat recovery mode, it can be further determined that the fresh air device meets the first preset condition, and then the temperature of the indoor return air and the temperature of the outdoor fresh air are obtained. When the fresh air device is not in the total heat recovery mode, the operating mode of the fresh air device can be continuously detected until the fresh air device is in the total heat recovery mode. In this embodiment, temperature and humidity sensors can also be set near the indoor return air outlet and the outdoor fresh air of the fresh air device to obtain the temperature and humidity of the indoor return air and the temperature and humidity of the outdoor fresh air.

[0042] S20. When the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, control the drive motor to reverse by a preset angle so that the notch is in the fresh air duct.

[0043] Specifically, after obtaining the indoor return air temperature and the outdoor fresh air temperature, the temperature difference between the two can be further calculated. Under the condition of recovering the heat of the indoor return air in winter, when the temperature difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, it indicates that the difference between the indoor return air temperature and the outdoor fresh air temperature is large, and more heat needs to be provided to the outdoor fresh air to ensure that it can reach the preset temperature. Therefore, in this embodiment, when the temperature difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, the driving motor is controlled to reverse by a preset angle so that the notch is in the fresh air duct. Thus, when the outdoor fresh air passes through the notch, it can take away the heat on the driving motor, thereby increasing the temperature of the fresh air and at the same time dissipating heat from the driving motor to improve its operating efficiency. That is to say, in the process of total heat recovery in winter for the fresh air device in this embodiment, if the temperature difference between indoors and outdoors is large, the position of the notch on the enclosure structure can be adjusted to utilize the heat generated during the operation of the driving motor, which can increase the temperature of the outdoor fresh air and reduce the temperature of the driving motor, improving the working efficiency of the driving motor. Optionally, the value range of the temperature difference threshold in this embodiment can be 0 to 10 °C.

[0044] In this embodiment, the control method further includes: when the operation mode of the fresh air device is not the total heat recovery mode, detecting whether the notch is in the return air duct, and when the notch is in the return air duct, re-obtaining the operation mode of the fresh air device. When the notch is not in the return air duct, controlling the driving motor to reverse by a preset angle so that the notch is in the return air duct, and then re-obtaining the operation mode of the fresh air device.

[0045] Specifically, if it is detected that the operation mode of the fresh air device is not the total heat recovery mode, it can be determined that the fresh air device does not meet the first preset condition. Therefore, it can be further detected whether the notch is in the return air duct. If the notch is in the return air duct, the operation mode of the fresh air device can be re-obtained until the fresh air device is in the total heat recovery mode, and then the subsequent steps can be carried out. If it is determined that the notch is not in the return air duct after detecting the notch, the driving motor can be controlled to reverse by a preset angle so that the notch is in the return air duct, and then the operation mode of the fresh air device is re-obtained.

[0046] In a specific example, the opening degree of the notch can be 180°, so that the motor is just exposed in only one of the fresh air duct or the return air duct, and the exposed area is kept the largest. The preset angle in this example can also be 180°. After rotating the enclosure structure by 180°, the notch can be adjusted to different ducts.

[0047] In some embodiments of the present invention, after the driving motor reverses by a preset angle, the driving motor is also controlled to resume forward rotation, and then it is re-determined whether the fresh air device meets the first preset condition.

[0048] Specifically, since the reverse rotation of the drive motor is achieved by controlling the reverse rotation of the drive motor, and after the reverse rotation control of the drive motor is completed, in order to ensure the normal operation of the motor, it is necessary to re-control the drive motor to resume forward rotation. That is to say, the reverse rotation of the drive motor is only used to adjust the position of the notch, and after the adjustment is completed, the original forward rotation mode can be restored. And after resuming forward rotation, it is possible to re-determine whether the fresh air device meets the first preset condition, and then repeat the adjustment of the notch position to ensure the total heat recovery efficiency of the fresh air device and the working efficiency of the drive motor.

[0049] In a specific embodiment of the present invention, as Figure 4 shown, first, the operation mode of the fresh air device can be detected every two hours, and then it is determined whether the operation mode is the total heat recovery mode. If so, the indoor temperature T1 and the outdoor temperature T4 are further detected. Otherwise, it is further determined whether the notch is in the return air duct. If the notch is in the return air duct, the operation mode of the fresh air device is re-detected. If the notch is not in the return air duct, the drive motor is controlled to reverse 180° to adjust the building envelope and switch the notch to the return air duct. After that, the drive motor resumes normal operation, that is, resumes forward rotation, and then the operation mode of the fresh air device is re-detected. After obtaining the indoor temperature T1 and the outdoor temperature T4, the magnitudes of the two are compared. If the indoor temperature T1 minus the temperature threshold a is still greater than the outdoor temperature T4, the drive motor is controlled to reverse 180° to adjust the building envelope and switch the notch to the fresh air duct. After that, the drive motor resumes normal operation, that is, resumes normal, and then the operation mode of the fresh air device is re-detected.

[0050] In summary, the control method of the fresh air device in the embodiment of the present invention can utilize the heat generated by the operation of the drive motor in the fresh air device to improve the heat recovery efficiency, and at the same time dissipate heat from the drive motor to improve the operation efficiency, reliability and user experience of the fresh air device.

[0051] Furthermore, the present invention proposes a computer-readable storage medium, on which a control program of the fresh air device is stored. When the control program of the fresh air device is executed by a processor, it implements the control method of the fresh air device according to the above embodiment.

[0052] The computer-readable storage medium of the embodiment of the present invention can utilize the heat generated by the operation of the drive motor in the fresh air device to improve the heat recovery efficiency by executing the control program of the fresh air device stored thereon, and at the same time dissipate heat from the drive motor to improve the operation efficiency, reliability and user experience of the fresh air device.

[0053] Figure 5It is a schematic structural diagram of the first fresh air device in the embodiments of the present invention.

[0054] Further, as Figure 5 shown, the present invention provides a first fresh air device 100, which includes a memory 101, a processor 102, and a control program of the fresh air device stored on the memory 101 and operable on the processor 102. When the processor 102 executes the control program of the fresh air device, it realizes the control method of the fresh air device according to the above embodiments.

[0055] The first fresh air device in the embodiments of the present invention can improve the heat recovery efficiency by using the heat generated by the driving motor in the fresh air device while dissipating heat from the driving motor through the processor executing the control program of the fresh air device stored on the memory, so as to improve the operation efficiency, reliability and user experience of the fresh air device.

[0056] Figure 6 It is a schematic structural diagram of the second fresh air device in the embodiments of the present invention.

[0057] Further, as Figure 6 shown, the present invention provides a second fresh air device 200, which includes an adsorption wheel 1, a return air duct S1, a fresh air duct S2, and a control component 201. A driving motor M is arranged at the central position of the adsorption wheel 1, and the driving motor M controls the adsorption wheel 1 to rotate in the return air duct S1 and the fresh air duct S2. The driving motor M is surrounded by an enclosure structure A with a notch K. Wherein, when the driving motor M rotates forward, the enclosure structure A maintains its current position, and when the driving motor M rotates reversely, the enclosure structure A rotates with the driving motor M to adjust the position of the notch K. The control component 201 is configured to: when it is determined that the fresh air device meets the first preset condition, obtain the indoor return air temperature and the outdoor fresh air temperature of the fresh air device; when the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, control the driving motor to rotate reversely by a preset angle so that the notch is in the fresh air duct.

[0058] In some embodiments of the present invention, the operation mode of the fresh air device includes a total heat recovery mode, and the control component is further configured to: obtain a total heat recovery mode selection instruction of the fresh air device; determine that the operation mode of the fresh air device is the total heat recovery mode according to the total heat recovery mode selection instruction, and control the rotation speed of the adsorption wheel to be a preset speed so that the adsorption wheel alternates between sensible heat and latent heat according to the indoor return air and the outdoor fresh air.

[0059] In some embodiments of the present invention, the control component is further configured to: obtain the operation mode of the fresh air device at preset intervals, and when the operation mode of the fresh air device is the total heat recovery mode, determine that the fresh air device meets the first preset condition.

[0060] In some embodiments of the present invention, the control component is further configured to: when the operation mode of the fresh air device is a non-total heat recovery mode, detect whether the notch is in the return air duct, and when the notch is in the return air duct, re-obtain the operation mode of the fresh air device.

[0061] In some embodiments of the present invention, the control component is further configured to: when the notch is not in the return air duct, control the driving motor to reverse by a preset angle so that the notch is in the return air duct, and then re-obtain the operation mode of the fresh air device.

[0062] In some embodiments of the present invention, the control component is further configured to: after the driving motor reverses by a preset angle, control the driving motor to resume forward rotation.

[0063] In some embodiments of the present invention, the control component is further configured to: after controlling the driving motor to resume forward rotation, re-determine whether the fresh air device meets the first preset condition.

[0064] It should be noted that for the specific implementation manner of the second fresh air device in the embodiments of the present invention, reference may be made to the specific implementation manner of the control method of the fresh air device in the above embodiments, which will not be elaborated herein.

[0065] In summary, the second fresh air device in the embodiments of the present invention can utilize the heat dissipated by the driving motor in the fresh air device during operation through the notch to improve the heat recovery efficiency, and at the same time dissipate heat from the driving motor, thereby improving the operation efficiency, reliability and user experience of the fresh air device.

[0066] It should be noted that the logic and / or steps represented in the flowchart or otherwise described 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 instructions from the instruction execution system, apparatus, or device and execute the instructions), or in combination with these instruction execution systems, apparatuses, 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 combination 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 having one or more wirings (electronic device), a portable computer disk cartridge (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 appropriate processing as necessary, and then stored in a computer memory.

[0067] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above-described 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 in 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 having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0068] In the description of this specification, the description referring to the terms "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.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is 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.

[0070] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated in this embodiment. Thus, the features defined with the terms "first", "second", etc. in the embodiments of the present invention may explicitly or implicitly indicate that at least one such feature is included in this embodiment. In the description of the present invention, the meaning of the word "plural" is at least two or more than two, such as two, three, four, etc., unless otherwise explicitly and specifically defined in the embodiment.

[0071] In the present invention, unless otherwise explicitly specified or limited in the embodiments, the terms "mounted", "connected", "connected with", and "fixed" and the like appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or integrated. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements, or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific implementation circumstances.

[0072] In the present invention, unless otherwise explicitly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0073] 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 return air duct and a fresh air duct. A driving motor is arranged at the central position of the adsorption wheel. The driving motor controls the adsorption wheel to rotate in the return air duct and the fresh air duct. The driving motor is surrounded by an enclosure structure with a notch. Wherein, when the driving motor rotates forward, the enclosure structure maintains its current position. When the driving motor rotates reversely, the enclosure structure rotates with the driving motor to adjust the position of the notch. The control method includes: When it is determined that the fresh air device meets the first preset condition, obtain the indoor return air temperature and the outdoor fresh air temperature of the fresh air device; When the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, control the driving motor to rotate reversely by a preset angle so that the notch is in the fresh air duct.

2. The control method according to claim 1, characterized in that, the operation mode of the fresh air device includes a total heat recovery mode. The control method includes: Obtain the total heat recovery mode selection instruction of the fresh air device; According to the total heat recovery mode selection instruction, determine that the operation mode of the fresh air device is the total heat recovery mode, and control the rotation speed of the adsorption wheel to be a preset speed so that the adsorption wheel performs sensible heat and latent heat exchange according to indoor return air and outdoor fresh air.

3. The control method according to claim 2, characterized in that, determining that the fresh air device meets the first preset condition includes: Obtain the operation mode of the fresh air device at preset intervals. When the operation mode of the fresh air device is the total heat recovery mode, determine that the fresh air device meets the first preset condition.

4. The control method according to claim 3, characterized in that, the control method further includes: When the operation mode of the fresh air device is not the total heat recovery mode, detect whether the notch is in the return air duct, and when the notch is in the return air duct, re-obtain the operation mode of the fresh air device.

5. The control method according to claim 4, characterized in that, the control method further includes: When the notch is not in the return air duct, control the driving motor to rotate reversely by the preset angle so that the notch is in the return air duct, and then re-obtain the operation mode of the fresh air device.

6. The control method according to any one of claims 1-5, characterized in that, the control method further includes: After the driving motor rotates reversely by the preset angle, control the driving motor to resume forward rotation.

7. The control method according to claim 6, characterized in that, the control method further includes: After controlling the driving motor to resume forward rotation, re-determine whether the fresh air device meets the first preset condition.

8. A computer-readable storage medium, characterized in that, a control program for a fresh air device is stored thereon. When the control program for the fresh air device is executed by a processor, it implements the control method for the fresh air device according to any one of claims 1-7.

9. A fresh air device, characterized in that, Comprising a memory, a processor, and a control program for a fresh air device stored in the memory and executable on the processor, when the processor executes the control program of the fresh air device, it implements the control method of the fresh air device according to any one of claims 1-7.

10. A fresh air device characterized in that the fresh air device includes an adsorption rotor, a return air duct, a fresh air duct, and a control component. A driving motor is provided at the central position of the adsorption rotor. The driving motor controls the adsorption rotor to rotate in the return air duct and the fresh air duct. The driving motor is surrounded by an enclosure structure with a notch. Wherein, when the driving motor rotates forward, the enclosure structure maintains its current position, and when the driving motor rotates reversely, the enclosure structure rotates with the driving motor to adjust the position of the notch. The control component is configured to: when it is determined that the fresh air device meets the first preset condition, obtain the indoor return air temperature and the outdoor fresh air temperature of the fresh air device; when the difference between the indoor return air temperature and the outdoor fresh air temperature is greater than the temperature threshold, control the driving motor to rotate reversely by a preset angle so that the notch is in the fresh air duct.

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