Self-drying method of air conditioner, air conditioner, readable storage medium and control system

Abstract

The application provides a self-drying method of an air conditioner, the air conditioner, a readable storage medium and a control system. In the self-drying method, the temperature difference between the ambient temperature and the outlet air temperature of the heat exchanger is obtained when the heat exchanger is working, and the temperature difference is used as the running temperature difference. If the running temperature difference is greater than the running temperature setting difference, and the working time of the heat exchanger is greater than the setting running time when the running temperature difference is greater than the running temperature setting difference, the self-drying device is controlled to dry the heat exchanger after the heat exchanger stops working, which is beneficial to dry the water vapor in the heat exchanger, improve the dryness of the heat exchanger and prevent the heat exchanger from being mildewed.

Description

Technical Field

[0001] This application relates to the field of air conditioning dehumidification and drying technology, and in particular to a self-drying method for air conditioning, as well as an air conditioner, a readable storage medium, and a control system. Background Technology

[0002] With the development of the automotive industry, customers have increasingly higher requirements for ride comfort. When a car's air conditioning is working, the relatively low-temperature evaporator encounters the relatively high-temperature air, producing water vapor that condenses inside the evaporator. When the air conditioning stops working, the water vapor cannot evaporate in time in a relatively enclosed environment, and the residual water vapor may cause mold to grow in the enclosed environment, damaging the evaporator. Summary of the Invention

[0003] This application provides a self-drying method for an air conditioner, as well as an air conditioner, a readable storage medium, and a control system, to solve at least some of the problems in the related art.

[0004] This application provides a self-drying method for an air conditioner, the air conditioner including a heat exchanger and a self-drying device, the self-drying method comprising:

[0005] The ambient dew point temperature and the outlet air temperature of the heat exchanger are obtained when the heat exchanger is working.

[0006] The difference between the ambient dew point temperature and the outlet air temperature of the heat exchanger is determined as the operating temperature difference.

[0007] If the operating temperature difference is greater than the set operating temperature difference, and the heat exchanger operates for a longer period than the set operating time, the self-drying device is controlled to dry the heat exchanger after the heat exchanger stops operating.

[0008] Furthermore, controlling the self-drying device to dry the heat exchanger includes:

[0009] After the heat exchanger stops working, the vehicle's cabin information is obtained, which indicates whether anyone is riding in the vehicle.

[0010] If the cabin information indicates that the vehicle is unoccupied, the self-drying device is controlled to dry the heat exchanger.

[0011] Furthermore, controlling the self-drying device to dry the heat exchanger includes:

[0012] If the duration of the unattended information is longer than the dwell time, the self-drying device is controlled to dry the heat exchanger.

[0013] Furthermore, controlling the self-drying device to dry the heat exchanger includes:

[0014] After the heat exchanger stops working, the vehicle locking information is obtained, which indicates whether the vehicle is locked.

[0015] If the vehicle locking information indicates that the vehicle is locked, the self-drying device is controlled to dry the heat exchanger.

[0016] Furthermore, controlling the self-drying device to dry the heat exchanger includes:

[0017] If the duration of the locked vehicle information is longer than the vehicle locking duration, the self-drying device is controlled to dry the heat exchanger.

[0018] Furthermore, controlling the self-drying device to dry the heat exchanger includes:

[0019] To obtain the temperature of the coolant inside the air conditioner;

[0020] The difference between the coolant temperature and the outlet air temperature of the heat exchanger is determined as the heat exchange temperature difference.

[0021] If the heat exchange temperature difference is less than or equal to the heat exchange temperature set difference, the self-drying device is controlled to stop drying the heat exchanger.

[0022] If the heat exchange temperature difference is greater than the set heat exchange temperature difference, the self-drying device is controlled to continue drying the heat exchanger.

[0023] Furthermore, the self-drying device includes a blower, and controlling the self-drying device to dry the heat exchanger includes:

[0024] Obtain the wind speed of the blower;

[0025] The first working time of the blower is determined based on the wind speed; the greater the wind speed, the shorter the first working time.

[0026] The blower is controlled to dry the heat exchanger for the first operating time.

[0027] Furthermore, controlling the self-drying device to dry the heat exchanger includes:

[0028] Obtain ambient humidity;

[0029] The second operating time of the self-drying device is determined based on the ambient humidity; the higher the ambient humidity, the longer the second operating time.

[0030] The self-drying device is controlled to dry the heat exchanger to achieve the second working time.

[0031] This application provides a readable storage medium having a program stored thereon, which, when executed by a processor, implements the self-drying method described in any of the above embodiments.

[0032] This application provides a control system including one or more processors for executing the self-drying method described in any of the above embodiments.

[0033] This application provides an air conditioner, including a heat exchanger, a self-drying device, and a control system as described in the above embodiments, wherein the control system is electrically connected to the heat exchanger and the self-drying device.

[0034] The self-drying method for air conditioners provided in this application includes an air conditioner comprising a heat exchanger and a self-drying device. The method involves acquiring the ambient dew point temperature and the outlet air temperature of the heat exchanger during operation and determining the difference as the operating temperature difference. If the operating temperature difference is greater than the set operating temperature difference, and the heat exchanger's operating time is greater than the set operating time, the self-drying device is controlled to dry the heat exchanger after the heat exchanger stops operating. This self-drying method is beneficial for drying the water vapor inside the heat exchanger, improving the dryness of the heat exchanger, and preventing mold growth on the heat exchanger.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 The diagram shown is a flowchart of an exemplary embodiment of the self-drying method of this application;

[0038] Figure 2 As shown Figure 1 A flowchart of an exemplary embodiment of the self-drying method shown, illustrating the step of controlling the self-drying device to dry the heat exchanger.

[0039] Figure 3 As shown Figure 1 A flowchart of another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown;

[0040] Figure 4 As shown Figure 1 A flowchart of yet another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown;

[0041] Figure 5 As shown Figure 1 A flowchart of another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown;

[0042] Figure 6 As shown Figure 1 A flowchart of yet another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown;

[0043] Figure 7 The diagram shown is a block diagram of a control system provided in one embodiment of this application. Detailed Implementation

[0044] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0045] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected," "linked," etc., are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0046] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0047] This application provides a self-drying method for an air conditioner, as well as an air conditioner, a readable storage medium, and a control system. The self-drying method, air conditioner, readable storage medium, and control system of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments and implementations can be combined with each other.

[0048] This application provides an air conditioner, including a heat exchanger, a self-drying device, and a control system. The self-drying device is used to remove water vapor generated by the heat exchanger. The control system is electrically connected to the heat exchanger and the self-drying device, and is used to control the self-drying device and the heat exchanger.

[0049] The self-drying method for air conditioners provided in this application is applied to the aforementioned air conditioner, and the self-drying method is used to remove water vapor from the air conditioner.

[0050] Figure 1 The diagram shown is a flowchart of an exemplary embodiment of the self-drying method of this application. Figure 1 In the illustrated embodiment, the self-drying method of this application includes steps 11-13:

[0051] Step 11: Acquire the ambient dew point temperature and the outlet air temperature of the heat exchanger while the heat exchanger is operating. In some embodiments, the ambient dew point temperature can be used to characterize the temperature of the environment where the air conditioner is located at a certain humidity level. The heat exchanger can be an evaporator. The ambient dew point temperature and the outlet air temperature can be detected by a temperature sensor.

[0052] Step 12: Determine the difference between the ambient dew point temperature and the outlet air temperature of the heat exchanger, and use this as the operating temperature difference. The larger the operating temperature difference, the greater the difference between the ambient dew point temperature and the outlet air temperature. This means that the heat exchanger with the lower outlet air temperature will produce more water vapor when it encounters the higher ambient dew point temperature. Determining the operating temperature difference helps to improve the accuracy of judging the amount of water vapor produced.

[0053] Step 13: If the operating temperature difference is greater than the set operating temperature difference, and the heat exchanger's operating time exceeds the set operating time while the operating temperature difference is greater than the set operating temperature difference, the self-drying device is controlled to dry the heat exchanger after it stops working. An operating temperature difference greater than the set operating temperature difference indicates that the amount of water vapor generated may be large. In this case, the generated water vapor needs to be dried to prevent the heat exchanger from becoming damp and moldy. Furthermore, if the heat exchanger's operating time exceeds the set operating time while the operating temperature difference is greater than the set operating temperature difference, it indicates that the heat exchanger has been generating water vapor for a sufficiently long time under the large temperature difference. Under these conditions, the amount of water vapor generated by the heat exchanger is even greater, requiring self-drying to remove a large amount of water vapor. By satisfying the conditions of the set operating temperature difference and the set operating time, the accuracy of judging the amount of water vapor generated is improved, the water vapor is dried to a greater extent, and the power consumption waste caused by the prolonged operation of the self-drying device is reduced. In addition, drying the heat exchanger after it stops working helps to avoid negative impacts on the user experience during the drying process, and helps to achieve the drying function while ensuring the user experience.

[0054] Figure 2 As shown Figure 1 The flowchart illustrates an exemplary embodiment of the self-drying method, showing the step of controlling the self-drying device to dry the heat exchanger. Figure 2 In the illustrated embodiment, step 13, controlling the self-drying device to dry the heat exchanger, includes steps 21-22:

[0055] Step 21: After the heat exchanger stops working, acquire the vehicle's cabin information, which indicates whether anyone is riding in the vehicle. In some embodiments, a camera installed inside the vehicle can be used to detect whether anyone is riding in the vehicle, or an infrared temperature sensor installed inside the vehicle can be used to detect whether there are any living beings inside the vehicle, thereby determining whether anyone is riding in the vehicle.

[0056] Step 22: If the cabin information indicates that the vehicle is unoccupied, control the self-drying device to dry the heat exchanger. Since the self-drying device can generate significant noise during the drying process, it can be controlled to dry the heat exchanger when the user is not present. This achieves self-drying of the heat exchanger while reducing the impact on the user's riding comfort, thus improving the user experience.

[0057] In some embodiments, step 22, controlling the self-drying device to dry the heat exchanger, includes: if the duration of the unattended information is longer than the dwell time, controlling the self-drying device to dry the heat exchanger. By setting the drying operation of the heat exchanger only after the duration of the unattended information is longer than the dwell time, it is beneficial to reduce the impact of the heat exchanger's self-drying on the user. Since the user is still close to the vehicle immediately after getting off, and the noise generated by the self-drying device drying the heat exchanger is relatively large, immediately controlling the self-drying device to dry the heat exchanger at this time can easily cause significant noise disturbance to the user. Setting the drying to start only after the dwell time is met is beneficial to improving the user experience. In addition, if the duration of the unattended information is short, it can be determined that the heat exchanger has just stopped working and the temperature difference with the ambient temperature is still large. At this time, the temperature of the heat exchanger is low and the humidity is high. Self-drying after the dwell time is longer is beneficial to self-drying in relatively low humidity conditions, which helps to reduce the energy consumption of the self-drying device.

[0058] Figure 3 As shown Figure 1 A flowchart of another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown. Figure 3 In the illustrated embodiment, step 13, controlling the self-drying device to dry the heat exchanger, includes steps 31-32:

[0059] Step 31: After the heat exchanger stops working, acquire the vehicle's locking information, which indicates whether the vehicle is locked. In some embodiments, the vehicle can be locked via a remote control device or automatically locked after the remote control device moves a certain distance away from the occupants. In some embodiments, the locking information of the entire vehicle can be obtained by acquiring the locking status information of the windows or doors.

[0060] Step 32: If the vehicle lock information indicates that the vehicle is locked, control the self-drying device to dry the heat exchanger. If the vehicle is locked, it means that the user no longer needs to use the vehicle and the vehicle is idle. Since the drying process of the heat exchanger generates a lot of noise, drying the heat exchanger when the vehicle is idle helps to minimize the impact on the user and improve the user experience.

[0061] In some embodiments, step 32, controlling the self-drying device to dry the heat exchanger, includes: if the duration of the locked vehicle information is longer than the vehicle locking time, controlling the self-drying device to dry the heat exchanger. A duration longer than the vehicle locking time indicates that the vehicle has been locked for a relatively long period, meaning the user does not need to use the vehicle during this time. Therefore, it can be determined that the user is not near the vehicle, and controlling the self-drying device to dry the heat exchanger in this case has minimal impact on the user. Furthermore, if the duration of the locked vehicle information is short, it can be determined that the heat exchanger has only recently stopped working, and the temperature difference with the ambient temperature is still large. At this time, the heat exchanger temperature is low and the humidity is high. Performing self-drying after the duration of the locked vehicle information is longer is more beneficial for self-drying under relatively low humidity conditions, thus reducing the energy consumption of the self-drying device.

[0062] In some embodiments, the user continues to drive for a period of time after turning off the heat exchanger. During this time, the air inside the vehicle circulates, resulting in a small operating temperature difference. After the user locks the vehicle, the detected operating temperature difference does not meet the set operating temperature difference. Therefore, there is no need to automatically turn on the self-drying device to dry the heat exchanger. In some embodiments, the user can manually turn on the self-drying device to dry the heat exchanger.

[0063] Figure 4 As shown Figure 1 A flowchart of another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown. Figure 4 In the illustrated embodiment, step 13, controlling the self-drying device to dry the heat exchanger, includes steps 41-43:

[0064] Step 41: Obtain the temperature of the coolant inside the air conditioner. The temperature of the coolant inside the air conditioner can be measured by placing a temperature sensor at a location where coolant flows within the air conditioner.

[0065] Step 42: Determine the difference between the coolant temperature and the heat exchanger outlet air temperature as the heat exchange temperature difference. The heat exchange temperature difference can be used to characterize the remaining water vapor, thus facilitating the determination of whether further water vapor removal is needed. A larger heat exchange temperature difference indicates more water vapor generated inside the heat exchanger, while a smaller difference indicates less residual water vapor inside the heat exchanger. In some embodiments, the difference between the ambient temperature and the heat exchanger outlet air temperature can also be used as a standard for determining the remaining water vapor; a larger difference indicates more water vapor.

[0066] Step 43: If the heat exchange temperature difference is less than or equal to the set heat exchange temperature difference, control the self-drying device to stop drying the heat exchanger. When the heat exchange temperature difference is less than the set heat exchange temperature difference, it means that there is little water vapor inside the heat exchanger, and there is no need to dry the heat exchanger anymore. If the control continues to dry the heat exchanger, unnecessary power consumption will be generated. Therefore, controlling the stop of drying helps to reduce power consumption when there is little water vapor, which is beneficial to energy conservation and emission reduction.

[0067] Step 44: If the heat exchange temperature difference is greater than the set heat exchange temperature difference, control the self-drying device to continue drying the heat exchanger. When the heat exchange temperature difference is greater than the set heat exchange temperature difference, it indicates that there is a lot of moisture inside the heat exchanger, and the heat exchanger needs to continue drying to prevent it from becoming moldy due to dampness, which helps improve the user's riding experience.

[0068] Figure 5 As shown Figure 1 A flowchart of another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown. Figure 5 In the illustrated embodiment, the self-drying device includes a blower, and step 13 controls the self-drying device to dry the heat exchanger, including steps 51-53:

[0069] Step 51: Obtain the blower's wind speed. In some embodiments, the blower's wind speed can be measured using an anemometer.

[0070] Step 52: Determine the initial operating time of the blower based on the wind speed. The higher the wind speed, the shorter the initial operating time. The higher the blower wind speed, the better the drying effect on the water vapor in the heat exchanger, and the shorter the required drying time. After the blower has dried most of the water vapor, for the purpose of energy saving and emission reduction, the blower can be controlled to stop drying. Therefore, the higher the blower wind speed, the shorter the set drying time of the blower.

[0071] Step 53: Control the blower to dry the heat exchanger for the first operating time. Controlling the blower's drying time to the first operating time ensures that the blower fully dries the moisture inside the heat exchanger. Furthermore, controlling the blower to operate only for the first operating time helps avoid energy waste caused by the blower blowing dry when there is no moisture.

[0072] Figure 6 As shown Figure 1 A flowchart of another exemplary embodiment of the steps of controlling the self-drying device to dry the heat exchanger in the self-drying method shown. Figure 6 In the illustrated embodiment, step 13, controlling the self-drying device to dry the heat exchanger, includes steps 61-63:

[0073] Step 61, Obtain ambient humidity. In some embodiments, ambient humidity can be measured by setting a humidity detector.

[0074] Step 62: Determine the second operating time of the self-drying device based on the ambient humidity. The higher the ambient humidity, the longer the second operating time. Higher humidity indicates more residual water vapor in the heat exchanger, and the longer the drying time required. Therefore, the higher the ambient humidity data, the longer the drying time of the self-drying device needs to be controlled.

[0075] Step 63: Control the self-drying device to dry the heat exchanger for the second working time. Controlling the self-drying device to dry for the second working time ensures that the self-drying device fully dries the water vapor inside the heat exchanger. Furthermore, controlling the self-drying device to operate only for the second working time helps avoid energy waste caused by the self-drying device blowing dry when there is no water vapor.

[0076] Figure 7 The diagram shown is a block diagram of a control system provided in one embodiment of this application. Figure 7 In the illustrated embodiments, the control system 10 may include a readable storage medium 109, which may store a program that can be invoked by the processor 100, and may include a non-volatile storage medium. In some embodiments, the control system 10 may include memory 108 and an interface 107. In some embodiments, the control system 10 may also include other hardware depending on the actual application.

[0077] In some embodiments, this application provides a readable storage medium 109 on which a program is stored, which, when executed by a processor 100, implements the above-described oil return method.

[0078] This application may take the form of a computer program product implemented on one or more storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing program code. Readable storage media include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information may be computer-readable instructions, data structures, program modules, or other data. Examples of readable storage media include, but are not limited to: phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device. Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0079] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0080] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A self-drying method for an air conditioner, characterized in that, The air conditioner includes a heat exchanger and a self-drying device, comprising: The ambient dew point temperature and the outlet air temperature of the heat exchanger are obtained when the heat exchanger is working. The difference between the ambient dew point temperature and the outlet air temperature of the heat exchanger is determined as the operating temperature difference. If the operating temperature difference is greater than the operating temperature set difference, and the heat exchanger operates for a longer period than the set operating time, the self-drying device is controlled to dry the heat exchanger after the heat exchanger stops operating. The control of the self-drying device to dry the heat exchanger includes: To obtain the temperature of the coolant inside the air conditioner; The difference between the coolant temperature and the outlet air temperature of the heat exchanger is determined as the heat exchange temperature difference. If the heat exchange temperature difference is less than or equal to the heat exchange temperature set difference, the self-drying device is controlled to stop drying the heat exchanger. If the heat exchange temperature difference is greater than the set heat exchange temperature difference, the self-drying device is controlled to continue drying the heat exchanger.

2. The self-drying method according to claim 1, characterized in that, The control of the self-drying device to dry the heat exchanger includes: After the heat exchanger stops working, the vehicle's cabin information is obtained, which indicates whether anyone is riding in the vehicle. If the cabin information indicates that the vehicle is unoccupied, the self-drying device is controlled to dry the heat exchanger.

3. The self-drying method according to claim 2, characterized in that, The control of the self-drying device to dry the heat exchanger includes: If the duration of the unattended information is longer than the dwell time, the self-drying device is controlled to dry the heat exchanger.

4. The self-drying method according to claim 1, characterized in that, The control of the self-drying device to dry the heat exchanger includes: After the heat exchanger stops working, the vehicle locking information is obtained, which indicates whether the vehicle is locked. If the vehicle locking information indicates that the vehicle is locked, the self-drying device is controlled to dry the heat exchanger.

5. The self-drying method according to claim 4, characterized in that, The control of the self-drying device to dry the heat exchanger includes: If the duration of the locked vehicle information is longer than the vehicle locking duration, the self-drying device is controlled to dry the heat exchanger.

6. The self-drying method according to claim 1, characterized in that, The self-drying device includes a blower, and controlling the self-drying device to dry the heat exchanger includes: Obtain the wind speed of the blower; The first working time of the blower is determined based on the wind speed; the greater the wind speed, the shorter the first working time. The blower is controlled to dry the heat exchanger for the first operating time.

7. The self-drying method according to claim 1, characterized in that, The control of the self-drying device to dry the heat exchanger includes: Obtain ambient humidity; The second operating time of the self-drying device is determined based on the ambient humidity; the higher the ambient humidity, the longer the second operating time. The self-drying device is controlled to dry the heat exchanger to achieve the second working time.

8. A readable storage medium, characterized in that, It stores a program that, when executed by a processor, implements the self-drying method as described in any one of claims 1-7.

9. A control system, characterized in that, It includes one or more processors for performing the self-drying method according to any one of claims 1-7.

10. An air conditioner, characterized in that, It includes a heat exchanger, a self-drying device, and a control system as described in claim 9, wherein the control system is electrically connected to the heat exchanger and the self-drying device.

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