Fresh air fan linkage control method, device, equipment and storage medium

Abstract

The present invention discloses a linkage control method, device, equipment and storage medium for a fresh air fan, belonging to the technical field of air conditioners. The present invention obtains the current indoor humidity and the current outdoor humidity when the air conditioner is running, and performs linkage control on the fresh air fan according to the current indoor humidity and the current outdoor humidity. By monitoring the indoor humidity and the outdoor humidity in real time and then controlling the fresh air fan in a linked manner, it is ensured that the indoor is in a constant humidity state, improving the user comfort level.

Description

Technical Field

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

[0002] Existing air conditioners and total heat exchange fresh air fans operate independently, and there is no situation where the air conditioner is linked with the fresh air fan. With the increasing demand for user comfort, it is necessary to maintain the indoor humidity within a certain range for a long time to ensure user comfort. However, during heating, if the humidity is too high, it is difficult to reduce the humidity. Currently, the existing air conditioners and total heat exchange fresh air fans cannot be linked and controlled. When the air conditioner is heating, it will cause the indoor environment to not maintain a constant humidity, greatly affecting user comfort.

[0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main object of the present invention is to provide a linkage control method, device, equipment and storage medium for a fresh air fan, aiming to solve the technical problem that when the air conditioner is heating in the prior art, the indoor environment cannot maintain a constant humidity, greatly affecting user comfort.

[0005] To achieve the above object, the present invention provides a linkage control method for a fresh air fan. The linkage control method for the fresh air fan is applied to an air conditioner, and a fresh air fan is arranged in the area where the indoor unit of the air conditioner is located. The linkage control method for the fresh air fan includes the following steps:

[0006] Obtain the current indoor humidity and the current outdoor humidity when the air conditioner is running; and

[0007] Perform linkage control on the fresh air fan according to the current indoor humidity and the current outdoor humidity.

[0008] Optionally, the performing linkage control on the fresh air fan according to the current indoor humidity and the current outdoor humidity includes:

[0009] When the current indoor humidity is less than the preset indoor humidity, obtain the indoor air quality index and the outdoor air quality index;

[0010] Perform linkage control on the fresh air fan according to the indoor air quality index and the outdoor air quality index; and

[0011] When the current indoor humidity is greater than or equal to the preset indoor humidity, compare the current outdoor humidity with the preset outdoor humidity, and perform linkage control on the fresh air fan based on the comparison result.

[0012] Optionally, comparing the current outdoor humidity with a preset outdoor humidity and performing interlock control on the fresh air unit based on the comparison result includes:

[0013] When the current outdoor humidity is greater than or equal to the preset outdoor humidity, detecting the current gas concentration;

[0014] When the current gas concentration is greater than the preset concentration, performing interlock control on the fresh air unit according to the current gas concentration;

[0015] When the current gas concentration is less than or equal to the preset concentration, controlling the fresh air unit to operate in an internal circulation mode;

[0016] When the current outdoor humidity is less than the preset outdoor humidity, obtaining the current indoor temperature and the current outdoor temperature; and

[0017] Comparing the current indoor temperature with the current outdoor temperature and performing interlock control on the fresh air unit based on the comparison result.

[0018] Optionally, comparing the current indoor temperature with the current outdoor temperature and performing interlock control on the fresh air unit based on the comparison result includes:

[0019] When the current outdoor temperature is greater than the current indoor temperature, obtaining the indoor air quality index and the outdoor air quality index;

[0020] Performing interlock control on the fresh air unit according to the indoor air quality index and the outdoor air quality index;

[0021] When the current outdoor temperature is less than or equal to the current indoor temperature, obtaining the outdoor air index; and

[0022] Performing interlock control on the fresh air unit according to the outdoor air index.

[0023] Optionally, performing interlock control on the fresh air unit according to the outdoor air index includes:

[0024] When the outdoor air index is greater than the preset index, opening the bypass air valve and controlling the fresh air unit to operate at the maximum wind speed; and

[0025] When the outdoor air index is less than or equal to the preset index, controlling the fresh air unit to perform full heat exchange operation at the maximum wind speed.

[0026] Optionally, the fresh air unit interlock control method further includes:

[0027] Obtaining the current indoor temperature;

[0028] When the temperature difference between the current indoor temperature and the first temperature threshold is within a preset range and the current indoor temperature shows an upward trend, obtain the outdoor air index;

[0029] When the outdoor air index is greater than the preset index, open the bypass air valve and control the fresh air unit to operate at the maximum fan speed; and

[0030] When the outdoor air index is less than or equal to the preset index, control the fresh air unit to operate with full heat exchange at the maximum fan speed.

[0031] Optionally, after obtaining the current indoor temperature, it further includes:

[0032] When the temperature difference between the current indoor temperature and the second temperature threshold is within a preset range and the current indoor temperature shows a downward trend, obtain the indoor air index, where the first temperature threshold is greater than the second temperature threshold; and

[0033] Control the fresh air unit to turn on the internal circulation according to the fan speed corresponding to the indoor air index.

[0034] In addition, to achieve the above object, the present invention also provides a fresh air unit linkage control device, which is applied to an air conditioner, and a fresh air unit is provided in the area where the indoor unit of the air conditioner is located;

[0035] The fresh air unit linkage control device includes:

[0036] An acquisition module for acquiring the current indoor humidity and the current outdoor humidity during the operation of the air conditioner; and

[0037] A control module for performing linkage control on the fresh air unit according to the current indoor humidity and the current outdoor humidity.

[0038] In addition, to achieve the above object, the present invention also provides a fresh air unit linkage control device, which includes: a memory, a processor, and a fresh air unit linkage control program stored on the memory and running on the processor, and the fresh air unit linkage control program is configured to implement the fresh air unit linkage control method as described above.

[0039] In addition, to achieve the above object, the present invention also provides a storage medium, on which a fresh air unit linkage control program is stored, and when the fresh air unit linkage control program is executed by a processor, it implements the fresh air unit linkage control method as described above.

[0040] The present invention obtains the current indoor humidity and the current outdoor humidity during the operation of the air conditioner, and performs linkage control on the fresh air fan according to the current indoor humidity and the current outdoor humidity. By monitoring the indoor humidity and the outdoor humidity in real time and then controlling the fresh air fan in a linked manner, it ensures that the indoor environment is in a constant humidity state, thereby improving the user comfort level. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 FIG. is a schematic structural diagram of a fresh air fan linkage control device for the hardware operating environment involved in the embodiment solution of the present invention;

[0042] Figure 2 FIG. is a schematic flowchart of the first embodiment of the fresh air fan linkage control method of the present invention;

[0043] Figure 3 FIG. is a schematic structural diagram of a fresh air air conditioner in an embodiment of the fresh air fan linkage control method of the present invention;

[0044] Figure 4 FIG. is a schematic diagram of the fresh air fan linkage control of indoor humidity in an embodiment of the fresh air fan linkage control method of the present invention;

[0045] Figure 5 FIG. is a schematic flowchart of the second embodiment of the fresh air fan linkage control method of the present invention;

[0046] Figure 6 FIG. is a schematic flowchart of the third embodiment of the fresh air fan linkage control method of the present invention;

[0047] Figure 7 FIG. is a schematic diagram of the fresh air fan linkage control of indoor temperature in an embodiment of the fresh air fan linkage control method of the present invention;

[0048] Figure 8 FIG. is a structural block diagram of the first embodiment of the fresh air fan linkage control device of the present invention.

[0049] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] Refer to Figure 1 , Figure 1 FIG. is a schematic structural diagram of a fresh air fan linkage control device for the hardware operating environment involved in the embodiment solution of the present invention.

[0052] As Figure 1As shown in the figure, the fresh air blower linkage control device may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed Random Access Memory (RAM) memory or a stable Non-Volatile Memory (NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0053] Those skilled in the art can understand that Figure 1 the structure shown in does not constitute a limitation on the fresh air blower linkage control device, and it may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements.

[0054] As Figure 1 shown, the memory 1005, as a storage medium, may include an operating system, a network communication module, a user interface module, and a fresh air blower linkage control program.

[0055] In Figure 1 the fresh air blower linkage control device shown, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with users; the processor 1001 and the memory 1005 in the fresh air blower linkage control device of the present invention may be arranged in the fresh air blower linkage control device. The fresh air blower linkage control device calls the fresh air blower linkage control program stored in the memory 1005 through the processor 1001 and executes the fresh air blower linkage control method provided by the embodiments of the present invention.

[0056] The embodiments of the present invention provide a fresh air blower linkage control method. Referring to Figure 2 , Figure 2 is a schematic flowchart of the first embodiment of a fresh air blower linkage control method of the present invention.

[0057] In this embodiment, the fresh air blower linkage control method includes the following steps:

[0058] Step S10: Obtain the current indoor humidity and the current outdoor humidity when the air conditioner is operating.

[0059] In this embodiment, the execution subject of this embodiment may be the air conditioner control device. The air conditioner control device has functions such as data processing, data communication, and program operation. The air conditioner control device may be a controller inside the air conditioner. Of course, it may also be other devices with similar functions, and this embodiment does not limit this. For ease of explanation, this embodiment is described by taking the air conditioner control device as an example.

[0060] It should be noted that existing air conditioners and total heat exchange fresh air fans operate independently, and there will be no situation where the air conditioner is linked with the fresh air fan. With the increasing requirement for user comfort experience, it is necessary to keep the indoor humidity within a certain range for a long time to ensure user comfort. However, for heating, if the humidity is too high, it is difficult to reduce the humidity. Currently, the existing air conditioners and total heat exchange fresh air fans cannot be linked and controlled. When the air conditioner is heating, it will cause the indoor environment not to maintain a constant humidity, greatly affecting the user's comfort.

[0061] To solve the above technical problems, a fresh air air conditioner is first proposed in this embodiment. The fresh air air conditioner is as Figure 3 shown. Referring to Figure 3 , the fresh air air conditioner in this embodiment is composed of an air conditioner 1 and a fresh air fan 2. The air conditioner 1 can heat or cool the indoor environment, and the fresh air fan 2 can introduce fresh air and circulate the indoor air. When the air conditioner 1 is heating or cooling, in this embodiment, the fresh air fan 2 can be linked at the same time to ensure that the indoor environment is in a constant temperature or constant humidity state.

[0062] Furthermore, in this embodiment, taking Figure 4 as an example, the overall process of linking the fresh air fan when the air conditioner is heating in this embodiment is described. First, this embodiment needs to detect the indoor humidity. If the indoor humidity H1 is less than the preset indoor humidity M1, then in this embodiment, the fresh air fan is controlled to operate according to the indoor PM2.5, the outdoor PM2.5, and the indoor CO2 concentration, and the indoor humidity is gradually increased through the above method.

[0063] If the indoor humidity H1 is greater than or equal to the preset indoor humidity M1, it indicates that the indoor humidity is relatively high at this time. In this embodiment, the outdoor humidity H2 will be continuously detected. If the outdoor humidity H2 is greater than or equal to the preset outdoor humidity M2, it means that the outdoor humidity is relatively high. In this case, in this embodiment, the fresh air blower is not linked to introduce outdoor air, and the indoor humidity is reduced through internal air circulation. However, to ensure the health and safety of users, the indoor CO2 concentration L1 will also be detected in this embodiment. If the indoor CO2 concentration L1 is greater than 0, the fresh air blower will be linked to operate according to the indoor CO2 concentration to reduce the indoor CO2 concentration L1 to a healthy value. If the indoor CO2 concentration L1 is less than 0, the internal circulation will be directly turned on to effectively prevent high-humidity outdoor air from entering the room. If the outdoor humidity H2 is less than the preset outdoor humidity M2, this embodiment will further obtain the indoor temperature T1 and the outdoor temperature T4, and then compare the indoor temperature with the outdoor temperature.

[0064] If the outdoor temperature T4 is less than or equal to the indoor temperature T1, it means that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, this embodiment needs to introduce indoor fresh air into the room to reduce the indoor humidity. However, when introducing fresh air, the outdoor PM2.5 concentration N1 needs to be considered. If the outdoor PM2.5 concentration N1 is greater than the preset indoor concentration M, the fresh air blower is controlled to operate with full heat exchange and at a 100% wind speed, so that the outside air passes through the high-efficiency filter and enters the room, reducing the indoor temperature to achieve the purpose of reducing the indoor temperature. If the outdoor PM2.5 concentration N1 is less than the preset indoor concentration M, it means that the outdoor air quality is good, and the bypass air valve can be directly opened to introduce fresh air and operate at a 100% wind speed. The fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature to achieve the purpose of reducing the indoor humidity.

[0065] Further, if the outdoor temperature T4 is greater than the indoor temperature T1, it means that the humidity of the outdoor air is greater than that of the indoor air at this time. In this case, in this embodiment, the fresh air blower is controlled to operate according to the indoor PM2.5, outdoor PM2.5, and indoor CO2 concentration, and the fresh air blower is not linked to introduce high-humidity outdoor air at this time.

[0066] The above is illustrated by taking the heating operation of the air conditioner as an example. When the air conditioner is heating, the indoor humidity will increase. At this time, the fresh air blower needs to be linked to reduce the indoor humidity. When the air conditioner is cooling, the indoor humidity will decrease. At this time, the fresh air blower needs to be linked to increase the indoor humidity.

[0067] When the air conditioner is cooling, if the indoor humidity H1 is greater than or equal to the preset indoor humidity M1, in this embodiment, the fresh air blower is controlled to operate according to the indoor PM2.5, outdoor PM2.5, and indoor CO2 concentration, and the indoor humidity is gradually reduced in the above manner.

[0068] If the indoor humidity H1 is less than the preset indoor humidity M1, it indicates that the indoor humidity is relatively low at this time. In this embodiment, the outdoor humidity H2 will be continuously detected. If the outdoor humidity H2 is less than the preset outdoor humidity M2, it means that the outdoor humidity is relatively low. In this case, the fresh air blower is not linked to introduce outdoor air in this embodiment, and the indoor humidity is increased through internal air circulation. However, to ensure the health and safety of users, the indoor CO2 concentration L1 will also be detected in this embodiment. If the indoor CO2 concentration L1 is greater than 0, the fresh air blower will be linked to operate according to the indoor CO2 concentration to reduce the indoor CO2 concentration L1 to a healthy value. If the indoor CO2 concentration L1 is less than 0, the internal circulation will be directly turned on to effectively prevent outdoor low-humidity air from entering the room.

[0069] If the outdoor humidity H2 is greater than or equal to the preset outdoor humidity M2, it means that the outdoor humidity is relatively high at this time. In this embodiment, the indoor temperature T1 and the outdoor temperature T4 will be further obtained, and then the indoor temperature will be compared with the outdoor temperature.

[0070] If the outdoor temperature T4 is greater than the indoor temperature T1, it means that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, the fresh air in the room needs to be introduced into the room in this embodiment to reduce the indoor humidity. However, when introducing fresh air, the outdoor PM2.5 concentration N1 needs to be considered. If the outdoor PM2.5 concentration N1 is greater than the preset indoor concentration M, the fresh air blower is controlled to operate with full heat exchange and at 100% air damper, so that the outside air passes through the high-efficiency filter and enters the room, reducing the indoor temperature to achieve the purpose of reducing the indoor temperature. If the outdoor PM2.5 concentration N1 is less than the preset indoor concentration M, it means that the outdoor air quality is good, and the bypass air valve can be directly opened to introduce fresh air and operate at 100% air damper. The fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature to achieve the purpose of reducing the indoor humidity.

[0071] Furthermore, if the outdoor temperature T4 is less than or equal to the indoor temperature T1, it means that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, the fresh air blower is controlled to operate according to the indoor PM2.5, outdoor PM2.5, and indoor CO2 concentration in this embodiment, and the fresh air blower is not linked to introduce outdoor low-humidity fresh air at this time.

[0072] In specific implementation, in this embodiment, when the air conditioner is in heating operation, the indoor humidity is reduced through the linkage of the fresh air blower, or when the air conditioner is in cooling operation, the indoor humidity is increased through the linkage of the fresh air blower to achieve the purpose of constant humidity. First, in this embodiment, the current indoor humidity and the current outdoor humidity need to be obtained simultaneously, and the fresh air blower is linked and controlled based on the current indoor humidity and the current outdoor humidity.

[0073] Step S20: Perform interlocking control on the fresh air machine according to the current indoor humidity and the current outdoor humidity.

[0074] In specific implementation, after obtaining the current indoor humidity and the current outdoor humidity, in this embodiment, the judgment can be made according to the steps in the above process, and the fresh air machine can be interlocked and controlled in combination with the current indoor humidity and outdoor humidity when the air conditioner is cooling or heating.

[0075] In this embodiment, by obtaining the current indoor humidity and the current outdoor humidity during the operation of the air conditioner, and performing interlocking control on the fresh air machine according to the current indoor humidity and the current outdoor humidity, by monitoring the indoor humidity and outdoor humidity in real time, and then controlling the fresh air machine in an interlocked manner to ensure that the indoor is in a constant humidity state, thereby improving the user comfort.

[0076] Reference Figure 5 , Figure 5 is a schematic flowchart of the second embodiment of a fresh air machine interlocking control method of the present invention.

[0077] Based on the above first embodiment, in the fresh air machine interlocking control method of this embodiment, the step S20 specifically includes:

[0078] Step S201: When the current indoor humidity is less than the preset indoor humidity, obtain the indoor air quality index and the outdoor air quality index.

[0079] In specific implementation, in this embodiment, the obtained current indoor humidity is limited to be compared with the preset indoor humidity. If the current indoor humidity is smaller than the preset indoor humidity, it means that the indoor temperature is relatively low at this time. In this case, in this embodiment, there is no need to exchange fresh air with the indoor. However, in order to ensure the indoor air quality, in this embodiment, it is also necessary to obtain the indoor air quality index and the outdoor air quality index. The indoor air quality index such as PM2.5 and CO2 concentration, and the outdoor air quality index such as PM2.5.

[0080] Step S202: Perform interlocking control on the fresh air machine according to the indoor air quality index and the outdoor air quality index.

[0081] In specific implementation, by performing indoor fresh air exchange according to the indoor control quality index and the outdoor air quality index, the indoor humidity can be increased while ensuring the indoor air quality.

[0082] Step S203: When the current indoor humidity is greater than or equal to the preset indoor humidity, compare the current outdoor humidity with the preset outdoor humidity, and perform interlocking control on the fresh air machine based on the comparison result.

[0083] It should be noted that if the current indoor humidity is greater than or equal to the preset indoor humidity, it indicates that the indoor humidity is relatively high at this time. In this case, in this embodiment, the outdoor humidity is compared with the preset outdoor humidity, and then the fresh air fan is controlled in a linked manner based on the comparison result. The preset indoor humidity and the preset outdoor humidity can be set accordingly according to actual needs, and this embodiment does not limit this.

[0084] Furthermore, if the outdoor humidity is greater than or equal to the preset outdoor humidity, it indicates that the outdoor humidity is relatively high at this time. In this case, in this embodiment, the fresh air fan is not linked to introduce outdoor air, and the indoor humidity is reduced through internal air circulation. However, to ensure the health and safety of users, in this embodiment, the current gas concentration in the room is also detected, such as the CO2 concentration. If the current gas concentration is greater than the preset concentration, and the preset concentration can be set to 0, then the fresh air fan is linked to operate according to the current gas concentration to reduce the current gas concentration to a healthy value. If the current gas concentration is less than 0, the internal circulation is directly turned on, which can effectively prevent high-humidity outdoor air from entering the room. If the outdoor humidity is less than the preset outdoor humidity, then in this embodiment, the indoor temperature and the outdoor temperature are further obtained, and then the indoor temperature is compared with the outdoor temperature.

[0085] If the outdoor temperature is less than or equal to the indoor temperature, it indicates that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, in this embodiment, the indoor fresh air needs to be introduced into the room to reduce the indoor humidity. However, when introducing fresh air, the outdoor air quality index needs to be considered. If the outdoor air quality index is greater than the preset index, the fresh air fan is controlled to operate in full heat exchange mode and at 100% wind speed, so that the outside air passes through the high-efficiency filter and enters the room, reducing the indoor temperature to achieve the purpose of reducing the indoor temperature. If the outdoor air quality index is less than the preset index, it means that the outdoor air quality is good, and the bypass air valve can be directly opened to introduce fresh air and operate at 100% wind speed. The fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature to achieve the purpose of reducing the indoor humidity. The preset index can be set according to the actual situation, and this embodiment does not limit this.

[0086] Furthermore, if the outdoor temperature is greater than the indoor temperature, it indicates that the humidity of the outdoor air is greater than that of the indoor air at this time. In this case, in this embodiment, the fresh air fan is controlled to operate according to the indoor air quality index, the outdoor air quality index, and the indoor gas concentration. At this time, the fresh air fan is not linked to introduce high-humidity outdoor air.

[0087] In this embodiment, by obtaining the current indoor humidity and the current outdoor humidity during the operation of the air conditioner, and combining the air quality indexes of the indoor and outdoor, the fresh air fan is controlled in a linked manner, which can ensure the air quality while ensuring the constant indoor humidity, taking into account the comfort and health of users.

[0088] Reference Figure 6 , Figure 6 is a schematic flowchart of the third embodiment of a method for coordinated control of a fresh air fan according to the present invention.

[0089] Based on the above first embodiment, in the method for coordinated control of a fresh air fan in this embodiment, the step S20 further includes:

[0090] Step S204: Obtain the current indoor temperature.

[0091] It should be noted that in this embodiment, the fresh air fan can also be coordinated to control the indoor temperature during the heating operation of the air conditioner, so that the indoor is in a constant temperature state. First, the current indoor temperature needs to be obtained in this embodiment.

[0092] Step S205: When the temperature difference between the current indoor temperature and the first temperature threshold is within a preset range and the current indoor temperature shows an upward trend, obtain the outdoor air index.

[0093] In specific implementation, calculate the temperature difference between the current indoor temperature and the first temperature threshold. If the temperature difference is within the preset range, it means that the current indoor temperature is close to the first temperature threshold. In addition, in this embodiment, it is also detected whether the current indoor temperature shows an upward trend. If the current indoor temperature is close to the first temperature threshold and the current indoor temperature shows an upward trend, it means that the indoor temperature is in a gradually rising state and is close to the set temperature threshold. In this case, outdoor fresh air needs to be introduced in this embodiment to balance the indoor temperature. Before introducing the indoor fresh air, the outdoor air parameters need to be further obtained in this embodiment.

[0094] Step S206: When the outdoor air index is greater than the preset index, open the bypass air valve and control the fresh air fan to operate at the maximum wind speed.

[0095] It should be noted that if the outdoor air quality index is greater than the preset index, control the fresh air fan to operate in full heat exchange mode at 100% wind speed, so that the outside air enters the room through the high-efficiency filter, reducing the indoor temperature to achieve the purpose of reducing the indoor temperature, and at the same time, the outdoor fresh air can be filtered.

[0096] Step S207: When the outdoor air index is less than or equal to the preset index, control the fresh air fan to operate in full heat exchange mode at the maximum wind speed.

[0097] It should be noted that if the outdoor air quality index is less than the preset index, it indicates that the outdoor air quality is good. In this case, the bypass ventilation valve can be directly opened to introduce fresh air and operate at 100% wind speed. Fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature, so as to achieve the purpose of reducing indoor humidity. Herein, the preset index can be set according to the actual situation, and no limitation is imposed in this embodiment.

[0098] Furthermore, in this embodiment, the temperature difference between the current indoor temperature and the second temperature threshold will also be calculated. If the temperature difference is within the preset range, it indicates that the current indoor temperature is close to the second temperature threshold. In addition, in this embodiment, it will also be detected whether there is a downward trend in the current indoor temperature. If the current indoor temperature is close to the second temperature threshold and there is a downward trend in the current indoor temperature, it indicates that the indoor temperature is in a gradually decreasing state and is close to the set temperature threshold. In this case, in this embodiment, the exchange of indoor fresh air needs to be stopped, the indoor air index is obtained, and then the fresh air machine is controlled to turn on the internal circulation according to the wind speed corresponding to the indoor air index, so as to gradually increase the indoor temperature.

[0099] In this embodiment, further combined with Figure 7 the linkage control process of the fresh air machine in the air conditioner during heating is described. As Figure 7 shown, when the air conditioner is operating in heating mode and it is detected that the indoor temperature is close to T1 and has an upward trend, it indicates that the indoor temperature is gradually rising. When the air conditioner is operating in heating mode, the outdoor temperature is lower than the indoor temperature. In this case, in this embodiment, the indoor temperature can be reduced by introducing outdoor fresh air. However, before introducing outdoor fresh air, in this embodiment, it is necessary to detect the concentration L1 of outdoor PM2.5. If L1 is greater than M, it indicates that the outdoor air quality is poor. In this case, the fresh air machine is controlled to operate with total heat exchange at 100% wind speed, so that the outside air enters the room through the high-efficiency filter to reduce the indoor temperature, so as to achieve the purpose of reducing the indoor temperature, and at the same time, the outdoor fresh air can be filtered. If L1 is less than or equal to M, it indicates that the outdoor air quality is good. The bypass ventilation valve can be directly opened to introduce fresh air and operate at 100% wind speed. Fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature, so as to achieve the purpose of reducing the indoor temperature. When it is detected that the indoor temperature is close to T2 and has a downward trend, it indicates that the indoor temperature is gradually decreasing. In this case, in this embodiment, the exchange of indoor fresh air needs to be stopped, the indoor air index is obtained, and then the fresh air machine is controlled to turn on the internal circulation according to the wind speed corresponding to the indoor PM2.5 concentration, so as to gradually increase the indoor temperature.

[0100] Further, when the air conditioner is operating in the cooling mode and it is detected that the indoor temperature is approaching T1 and has an upward trend, it indicates that the indoor temperature is gradually rising. When the air conditioner is operating in the cooling mode, the outdoor temperature is higher than the indoor temperature. In this case, in this embodiment, the exchange of indoor fresh air needs to be stopped, and the indoor air index is obtained. Then, according to the windshield corresponding to the indoor PM2.5 concentration, the fresh air machine is controlled to turn on the internal circulation to gradually lower the indoor temperature. When it is detected that the indoor temperature is approaching T2 and has an upward and downward trend, it indicates that the indoor temperature is gradually decreasing. In this case, in this embodiment, the indoor temperature can be increased by introducing outdoor fresh air. However, before introducing outdoor fresh air, in this embodiment, the concentration L1 of outdoor PM2.5 needs to be detected. If L1 is greater than M, it indicates that the outdoor air quality is poor. In this case, the fresh air machine is controlled to operate in full heat exchange and at 100% windshield, so that the outside air enters the room through the high-efficiency filter, increasing the indoor temperature and filtering the outdoor fresh air at the same time. If L1 is less than or equal to M, it indicates that the outdoor air quality is good. The bypass air valve can be directly opened, and fresh air is introduced and operated at 100% windshield. It is necessary to directly introduce fresh air through the high-efficiency filter to increase the indoor temperature in order to achieve the purpose of increasing the indoor humidity.

[0101] In this embodiment, by detecting the downward and upward trends of the current indoor temperature and the differences between the first temperature threshold and the second temperature threshold, the introduction of outdoor fresh air is controlled to ensure the balance of the indoor temperature and improve the comfort of the user.

[0102] In addition, an embodiment of the present invention also provides a storage medium, on which a fresh air machine linkage control program is stored. When the fresh air machine linkage control program is executed by a processor, the steps of the fresh air machine linkage control method as described above are implemented.

[0103] Since this storage medium adopts all the technical solutions of the above-mentioned all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated here one by one.

[0104] Refer to Figure 8 , Figure 8 which is the structural block diagram of the first embodiment of the fresh air machine linkage control device of the present invention.

[0105] As Figure 8 shown, the fresh air machine linkage control device proposed by the embodiment of the present invention includes:

[0106] An acquisition module 10, configured to acquire the current indoor humidity and the current outdoor humidity when the air conditioner is operating.

[0107] In this embodiment, the execution subject of this embodiment is a fresh air conditioner linkage control device. The air conditioner control device has functions such as data processing, data communication, and program operation. The air conditioner control device can be a controller inside the air conditioner. Of course, it can also be other devices with similar functions, and this embodiment does not limit this. For the convenience of description, this embodiment is described by taking the air conditioner control device as an example.

[0108] It should be noted that existing air conditioners and total heat exchange fresh air fans operate independently, and there will be no situation where the air conditioner is linked to the fresh air fan. With the increasing demand for user comfort, it is necessary to keep the indoor humidity within a certain range for a long time to ensure user comfort. However, during heating, if the humidity is too high, it is very difficult to reduce the humidity. Currently, the existing air conditioners and total heat exchange fresh air fans cannot be linked and controlled. When the air conditioner is heating, it will cause the indoor environment to be unable to maintain a constant humidity, greatly affecting the user's comfort.

[0109] To solve the above technical problems, in this embodiment, a fresh air conditioner is first proposed. The fresh air conditioner is as Figure 3 shown. Referring to Figure 3 , the fresh air conditioner in this embodiment is composed of an air conditioner 1 and a fresh air fan 2. The air conditioner 1 can heat or cool the indoor environment, and the fresh air fan 2 can introduce fresh air and circulate the indoor air. When the air conditioner 1 is heating or cooling, in this embodiment, the fresh air fan 2 can be linked simultaneously to ensure that the indoor environment is in a constant temperature or constant humidity state.

[0110] Furthermore, in this embodiment, taking Figure 4 as an example, the overall process of linking the fresh air fan during the heating of the air conditioner in this embodiment is described. First, this embodiment needs to detect the indoor humidity. If the indoor humidity H1 is less than the preset indoor humidity M1, then in this embodiment, the fresh air fan is controlled to operate according to the indoor PM2.5, outdoor PM2.5, and indoor CO2 concentration, and the indoor humidity is gradually increased through the above method.

[0111] If the indoor humidity H1 is greater than or equal to the preset indoor humidity M1, it indicates that the indoor humidity is relatively high at this time. In this embodiment, the outdoor humidity H2 will be continuously detected. If the outdoor humidity H2 is greater than or equal to the preset outdoor humidity M2, it means that the outdoor humidity is relatively high. In this case, in this embodiment, the fresh air blower is not linked to introduce outdoor air, and the indoor humidity is reduced through internal air circulation. However, to ensure the health and safety of users, in this embodiment, the indoor CO2 concentration L1 will also be detected. If the indoor CO2 concentration L1 is greater than 0, the fresh air blower is linked to operate according to the indoor CO2 concentration to reduce the indoor CO2 concentration L1 to a healthy value. If the indoor CO2 concentration L1 is less than 0, the internal circulation is directly turned on, which can effectively prevent high-humidity outdoor air from entering the room. If the outdoor humidity H2 is less than the preset outdoor humidity M2, in this embodiment, the indoor temperature T1 and the outdoor temperature T4 will be further obtained, and then the indoor temperature and the outdoor temperature will be compared.

[0112] If the outdoor temperature T4 is less than or equal to the indoor temperature T1, it means that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, in this embodiment, the indoor fresh air needs to be introduced into the room to reduce the indoor humidity. However, when introducing fresh air, the outdoor PM2.5 concentration N1 needs to be considered. If the outdoor PM2.5 concentration N1 is greater than the preset indoor concentration M, the fresh air blower is controlled to operate with full heat exchange and at 100% wind speed, so that the outside air passes through the high-efficiency filter and enters the room, reducing the indoor temperature to achieve the purpose of reducing the indoor temperature. If the outdoor PM2.5 concentration N1 is less than the preset indoor concentration M, it means that the outdoor air quality is good. The bypass air valve can be directly opened, fresh air is introduced and operated at 100% wind speed, and fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature to achieve the purpose of reducing the indoor humidity.

[0113] Furthermore, if the outdoor temperature T4 is greater than the indoor temperature T1, it means that the humidity of the outdoor air is greater than that of the indoor air at this time. In this case, in this embodiment, the fresh air blower is controlled to operate according to the indoor PM2.5, the outdoor PM2.5, and the indoor CO2 concentration. At this time, the fresh air blower is not linked to introduce high-humidity outdoor air.

[0114] The above is illustrated by taking the heating operation of the air conditioner as an example. When the air conditioner is heating, the indoor humidity will increase. At this time, the fresh air blower needs to be linked to reduce the indoor humidity. When the air conditioner is cooling, the indoor humidity will decrease. At this time, the fresh air blower needs to be linked to increase the indoor humidity.

[0115] When the air conditioner is cooling, if the indoor humidity H1 is greater than or equal to the preset indoor humidity M1, in this embodiment, the fresh air blower is controlled to operate according to the indoor PM2.5, the outdoor PM2.5, and the indoor CO2 concentration, and the indoor humidity is gradually reduced through the above method.

[0116] If the indoor humidity H1 is less than the preset indoor humidity M1, it indicates that the indoor humidity is relatively low at this time. In this embodiment, the outdoor humidity H2 will be continuously detected. If the outdoor humidity H2 is less than the preset outdoor humidity M2, it means that the outdoor humidity is relatively low. In this case, the fresh air blower is not linked to introduce outdoor air in this embodiment, and the indoor humidity is increased through internal air circulation. However, to ensure the health and safety of users, the indoor CO2 concentration L1 will also be detected in this embodiment. If the indoor CO2 concentration L1 is greater than 0, the fresh air blower will be linked to operate according to the indoor CO2 concentration to reduce the indoor CO2 concentration L1 to a healthy value. If the indoor CO2 concentration L1 is less than 0, the internal circulation will be directly turned on to effectively prevent low-humidity outdoor air from entering the room.

[0117] If the outdoor humidity H2 is greater than or equal to the preset outdoor humidity M2, it means that the outdoor humidity is relatively high at this time. In this embodiment, the indoor temperature T1 and the outdoor temperature T4 will be further obtained, and then the indoor temperature and the outdoor temperature will be compared.

[0118] If the outdoor temperature T4 is greater than the indoor temperature T1, it means that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, the fresh air in the room needs to be introduced into the room in this embodiment to reduce the indoor humidity. However, when introducing fresh air, the outdoor PM2.5 concentration N1 needs to be considered. If the outdoor PM2.5 concentration N1 is greater than the preset indoor concentration M, the fresh air blower is controlled to operate with full heat exchange and at 100% wind speed, so that the outside air passes through the high-efficiency filter and enters the room, reducing the indoor temperature to achieve the purpose of reducing the indoor temperature. If the outdoor PM2.5 concentration N1 is less than the preset indoor concentration M, it means that the outdoor air quality is good, and the bypass air valve can be directly opened to introduce fresh air and operate at 100% wind speed. The fresh air needs to be directly introduced through the high-efficiency filter to reduce the indoor temperature to achieve the purpose of reducing the indoor humidity.

[0119] Furthermore, if the outdoor temperature T4 is less than or equal to the indoor temperature T1, it means that the humidity of the outdoor air is less than that of the indoor air at this time. In this case, the fresh air blower is controlled to operate according to the indoor PM2.5, the outdoor PM2.5, and the indoor CO2 concentration in this embodiment, and the fresh air blower is not linked to introduce low-humidity outdoor fresh air at this time.

[0120] In specific implementation, in this embodiment, when the air conditioner is in heating operation, the indoor humidity is reduced through the linkage of the fresh air blower, or when the air conditioner is in cooling operation, the indoor humidity is increased through the linkage of the fresh air blower to achieve the purpose of constant humidity. First, in this embodiment, the current indoor humidity and the current outdoor humidity need to be obtained simultaneously, and the fresh air blower is controlled in a linked manner based on the current indoor humidity and the current outdoor humidity.

[0121] The control module 20 is used to perform linkage control on the fresh air machine according to the current indoor humidity and the current outdoor humidity.

[0122] In a specific implementation, after obtaining the current indoor humidity and the current outdoor humidity, in this embodiment, the judgment can be made according to the steps in the above process, and the fresh air machine can be linked and controlled in combination with the current indoor humidity and outdoor humidity when the air conditioner is cooling or heating.

[0123] In this embodiment, by obtaining the current indoor humidity and the current outdoor humidity during the operation of the air conditioner, and performing linkage control on the fresh air machine according to the current indoor humidity and the current outdoor humidity, by monitoring the indoor humidity and outdoor humidity in real time, and then controlling the fresh air machine in a linked manner, it is ensured that the indoor is in a constant humidity state, improving the user comfort.

[0124] It should be understood that the above is only an example for illustration and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can set according to needs, and the present invention does not make any restrictions in this regard.

[0125] It should be noted that the above-described working process is only illustrative and does not constitute a limitation to the protection scope of the present invention. In actual applications, those skilled in the art can select some or all of them according to actual needs to achieve the purpose of the solution of this embodiment, and no restrictions are made here.

[0126] In addition, for the technical details not described in detail in this embodiment, reference can be made to the fresh air machine linkage control method provided in any embodiment of the present invention, and details will not be repeated here.

[0127] In addition, it should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or system. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or system including that element.

[0128] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0129] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as a read-only memory (ROM) / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0130] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A linkage control method for a fresh air fan, characterized in that, The new air conditioner linkage control method is applied to an air conditioner, and a fresh air unit is arranged in the area where the indoor unit of the air conditioner is located; The fresh air unit linkage control method includes: Obtaining the current indoor humidity and the current outdoor humidity when the air conditioner is running; and Carrying out linkage control on the fresh air unit according to the current indoor humidity and the current outdoor humidity; The carrying out linkage control on the fresh air unit according to the current indoor humidity and the current outdoor humidity includes: When the current indoor humidity is greater than or equal to the preset indoor humidity, comparing the current outdoor humidity with the preset outdoor humidity, and carrying out linkage control on the fresh air unit based on the comparison result; When the current outdoor humidity is greater than or equal to the preset outdoor humidity, detecting the current gas concentration; When the current gas concentration is greater than the preset concentration, carrying out linkage control on the fresh air unit according to the current gas concentration; When the current gas concentration is less than or equal to the preset concentration, controlling the fresh air unit to operate in an internal circulation mode; When the current outdoor humidity is less than the preset outdoor humidity, obtaining the current indoor temperature and the current outdoor temperature; and Comparing the current indoor temperature and the current outdoor temperature, and carrying out linkage control on the fresh air unit based on the comparison result.

2. The new fan linkage control method according to claim 1, characterized in that, The carrying out linkage control on the fresh air unit according to the current indoor humidity and the current outdoor humidity includes: When the current indoor humidity is less than the preset indoor humidity, obtaining the indoor air quality index and the outdoor air quality index; Carrying out linkage control on the fresh air unit according to the indoor air quality index and the outdoor air quality index.

3. The fresh air unit linkage control method according to claim 1, characterized in that, The comparing the current indoor temperature and the current outdoor temperature, and carrying out linkage control on the fresh air unit based on the comparison result includes: When the current outdoor temperature is greater than the current indoor temperature, obtaining the indoor air quality index and the outdoor air quality index; Carrying out linkage control on the fresh air unit according to the indoor air quality index and the outdoor air quality index; When the current outdoor temperature is less than or equal to the current indoor temperature, obtaining the outdoor air index; and Carrying out linkage control on the fresh air unit according to the outdoor air index.

4. The fresh air unit linkage control method according to claim 3, wherein, The carrying out linkage control on the fresh air unit according to the outdoor air index includes: When the outdoor air index is greater than the preset index, opening the bypass air valve, and controlling the fresh air unit to operate at the maximum wind speed; and When the outdoor air index is less than or equal to the preset index, controlling the fresh air unit to operate at the maximum wind speed with total heat exchange.

5. The fresh air unit linkage control method according to claim 1, characterized in that, The fresh air unit linkage control method further includes: Obtaining the current indoor temperature; When the temperature difference between the current indoor temperature and the first temperature threshold is within the preset range and the current indoor temperature has an upward trend, obtaining the outdoor air index; When the outdoor air index is greater than the preset index, opening the bypass air valve, and controlling the fresh air unit to operate at the maximum wind speed; and When the outdoor air index is less than or equal to the preset index, controlling the fresh air unit to operate at the maximum wind speed with total heat exchange.

6. The new fan linkage control method according to claim 5, characterized in that, After obtaining the current indoor temperature, it further includes: When the temperature difference between the current indoor temperature and the second temperature threshold is within a preset range and the current indoor temperature shows a downward trend, obtain the indoor air index, where the first temperature threshold is greater than the second temperature threshold; and Control the fresh air unit to turn on the internal circulation according to the air damper corresponding to the indoor air index.

7. A fresh air fan linkage control device, characterized in that, The fresh air unit linkage control device is applied to an air conditioner, and a fresh air unit is provided in the area where the indoor unit of the air conditioner is located; The fresh air unit linkage control device includes: An acquisition module for acquiring the current indoor humidity and the current outdoor humidity during the operation of the air conditioner; and A control module for performing linkage control on the fresh air unit according to the current indoor humidity and the current outdoor humidity; The control module is further configured to compare the current outdoor humidity with a preset outdoor humidity when the current indoor humidity is greater than or equal to a preset indoor humidity, and perform linkage control on the fresh air unit based on the comparison result; detect the current gas concentration when the current outdoor humidity is greater than or equal to the preset outdoor humidity; perform linkage control on the fresh air unit according to the current gas concentration when the current gas concentration is greater than the preset concentration; control the fresh air unit to operate in internal circulation when the current gas concentration is less than or equal to the preset concentration; obtain the current indoor temperature and the current outdoor temperature when the current outdoor humidity is less than the preset outdoor humidity; and compare the current indoor temperature and the current outdoor temperature, and perform linkage control on the fresh air unit based on the comparison result.

8. A fresh air fan linkage control device, characterized in that, The fresh air unit linkage control equipment includes: a memory, a processor, and a fresh air unit linkage control program stored on the memory and running on the processor, and the fresh air unit linkage control program is configured to implement the fresh air unit linkage control method according to any one of claims 1 to 6.

9. A storage medium, characterized in that, The new air blower linkage control program is stored on the storage medium, and when the new air blower linkage control program is executed by the processor, it implements the new air blower linkage control method according to any one of claims 1 to 6.

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