Defrosting method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a defrosting method which comprises the steps that the frosting condition of a heat exchanger is obtained; and under the condition that the heat exchanger is frosted, the thickness of a frost layer on the heat exchanger is obtained. The heating temperature is determined according to the frost layer thickness. Controlling the heating device to heat the heat exchanger according to the heating temperature. Under the condition that the heat exchanger is frosted, the heating device arranged on the heat exchanger is controlled to heat the heat exchanger, direct heating of a frost layer on the outer surface of the heat exchanger is achieved, no refrigerant flows in a reversing mode in the defrosting process, balance does not need to be built again, and therefore the indoor temperature can be kept stable. Meanwhile, the heating temperature is determined according to the thickness of the frost layer, and the heating device is controlled to heat the heat exchanger according to the heating temperature, so that the heating temperature of the heating device can change along with the change of the thickness of the frost layer, and the defrosting efficiency of the heat exchanger can be improved. The invention further discloses a defrosting device, electronic equipment and a storage medium.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, for example, to a method, device, electronic device and storage medium for defrosting. Background Art

[0002] When the air conditioner is running in winter, the outdoor unit of the air conditioner absorbs heat from the outdoor air, and the temperature around the outdoor heat exchanger is low. The water vapor in the air will condense into frost and adhere to the surface of the outdoor heat exchanger. Thick frost will reduce the heat exchange capacity of the outdoor unit of the air conditioner, thereby reducing the heating efficiency of the air conditioner. The existing technology is to switch the air conditioner operation state to the refrigeration cycle mode, so that the high-temperature and high-pressure refrigerant discharged by the compressor is discharged into the outdoor unit of the air conditioner through the four-way reversing valve to melt the frost layer on the outdoor unit of the air conditioner.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Since the air conditioner switches from a heating cycle to a cooling cycle during the defrosting process, the indoor temperature fluctuates greatly, resulting in a poor air conditioning experience.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a method, device, electronic device and storage medium for defrosting, so as to maintain a stable indoor temperature during the defrosting process of an air conditioner.

[0008] In some embodiments, the method for defrosting is applied to an air conditioner, and a heating device is provided on the heat exchanger of the air conditioner. The method includes: obtaining the frosting condition of the heat exchanger, the frosting condition is used to characterize whether the heat exchanger is frosted or not frosted; when the heat exchanger is frosted, obtaining the thickness of the frost layer on the heat exchanger; determining the heating temperature according to the thickness of the frost layer; and controlling the heating device to heat the heat exchanger according to the heating temperature.

[0009] In some embodiments, a frost detection device is provided on the heat exchanger; obtaining the frost condition of the heat exchanger includes: sending a frost detection instruction to the frost detection device, triggering the frost detection device to feedback the detected frost condition at every preset time period.

[0010] In some embodiments, a frost thickness detection device is provided on the heat exchanger, and obtaining the frost thickness on the heat exchanger includes: sending a thickness detection instruction to the frost thickness detection device, triggering the frost thickness detection device to feed back the detected frost thickness.

[0011] In some embodiments, determining the heating temperature according to the thickness of the frost layer includes: determining a temperature correction value according to a first difference between the thickness of the frost layer and a preset first thickness threshold; and correcting a preset initial temperature using the temperature correction value to obtain the heating temperature.

[0012] In some embodiments, a temperature correction value is determined based on a first difference between the frost layer thickness and a preset first thickness threshold, including: when the first difference between the frost layer thickness and the preset first thickness threshold is less than or equal to 0, determining the temperature correction value to be 0; and / or, when the first difference between the frost layer thickness and the preset first thickness threshold is greater than 0, determining the temperature correction value to be the product of the first difference and the preset correction value.

[0013] In some embodiments, obtaining the frosting condition of the heat exchanger includes: obtaining the frosting condition of the heat exchanger when the outdoor ambient temperature is less than a preset temperature and the outdoor ambient humidity is less than a preset humidity.

[0014] In some embodiments, after controlling the heating device to heat the heat exchanger according to the heating temperature, the method further includes: real-time monitoring of the frosting condition of the heat exchanger; and controlling the heating device to turn off when the heat exchanger is not frosted.

[0015] In some embodiments, the defrosting device is applied to an air conditioner, and a heating device is provided on the heat exchanger of the air conditioner, and the device includes: a first acquisition module, configured to obtain the frosting condition of the heat exchanger, and the frosting condition is used to characterize whether the heat exchanger is frosted or not frosted; a second acquisition module, configured to obtain the thickness of the frost layer on the heat exchanger when the heat exchanger is frosted; a determination module, configured to determine the heating temperature according to the thickness of the frost layer; and a control module, configured to control the heating device to heat the heat exchanger according to the heating temperature.

[0016] In some embodiments, the electronic device includes a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for defrosting when running the program instructions.

[0017] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the above-mentioned method for defrosting is executed.

[0018] The defrosting method, device, electronic device and storage medium provided by the embodiments of the present disclosure can achieve the following technical effects: when the heat exchanger is frosted, the heating device provided on the heat exchanger is controlled to heat the heat exchanger, thereby directly heating the frost layer on the outer surface of the heat exchanger. Since there is no reversing flow of the refrigerant during the defrosting process, there is no need to re-establish the balance, thereby maintaining the indoor temperature stable. At the same time, by determining the heating temperature according to the thickness of the frost layer, and controlling the heating device to heat the heat exchanger according to the heating temperature, the heating temperature of the heating device can change with the change of the thickness of the frost layer, thereby improving the defrosting efficiency of the heat exchanger.

[0019] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0021] Figure 1 is a schematic diagram of a defrosting method provided by an embodiment of the present disclosure;

[0022] Figure 2 is a schematic diagram of another method for defrosting provided by an embodiment of the present disclosure;

[0023] Figure 3 is a schematic diagram of an air conditioner provided by an embodiment of the present disclosure;

[0024] Figure 4 is a schematic diagram of another air conditioner provided by an embodiment of the present disclosure;

[0025] Figure 5 is a schematic diagram of a defrosting device provided by an embodiment of the present disclosure;

[0026] Figure 6 It is a schematic diagram of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0029] Unless otherwise stated, the term "plurality" means two or more.

[0030] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0031] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0032] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0033] In the embodiment of the present disclosure, the execution subject of the defrosting method is an electronic device, and the electronic device is a server, a computer, an air conditioner, etc.

[0034] In some embodiments, when the electronic device is a server or a computer, the server or the computer is connected to the air conditioner for communication via the Internet. The air conditioner includes a heat exchanger, and a heating device is provided on the heat exchanger. The server or the computer controls the heating device to heat the heat exchanger to achieve defrosting of the heat exchanger.

[0035] In some embodiments, when the electronic device is an air conditioner, the air conditioner includes a heat exchanger, and a heating device is provided on the heat exchanger. The air conditioner controls the heating device to heat the heat exchanger to achieve defrosting of the heat exchanger.

[0036] Combination Figure 1 As shown, an embodiment of the present disclosure provides a method for defrosting, which is applied to an air conditioner, and a heating device is provided on a heat exchanger of the air conditioner. The method includes:

[0037] Step S101: the electronic device obtains a frosting condition of a heat exchanger, where the frosting condition is used to indicate whether the heat exchanger is frosted or not.

[0038] Step S102: When the heat exchanger is frosted, the electronic device obtains the thickness of the frost layer on the heat exchanger.

[0039] Step S103: the electronic device determines the heating temperature according to the thickness of the frost layer.

[0040] Step S104: the electronic device controls the heating device to heat the heat exchanger according to the heating temperature.

[0041] The defrosting method provided by the embodiment of the present disclosure is adopted. When the heat exchanger is frosted, the heating device provided on the heat exchanger is controlled to heat the heat exchanger, thereby directly heating the frost layer on the outer surface of the heat exchanger. Since there is no reversing flow of the refrigerant during the defrosting process, there is no need to re-establish the balance, thereby maintaining the indoor temperature stable. At the same time, by determining the heating temperature according to the thickness of the frost layer, and controlling the heating device to heat the heat exchanger according to the heating temperature, the heating temperature of the heating device can change with the change of the thickness of the frost layer, thereby improving the defrosting efficiency of the heat exchanger.

[0042] In some embodiments, the heating device is an infrared heating tube.

[0043] Optionally, a frost detection device is provided on the heat exchanger; obtaining the frost condition of the heat exchanger includes: sending a frost detection instruction to the frost detection device, triggering the frost detection device to feedback the detected frost condition at every preset time interval. In some embodiments, the frost detection device is a frost detection sensor.

[0044] Optionally, a frost layer thickness detection device is provided on the heat exchanger, and obtaining the frost layer thickness on the heat exchanger includes: sending a thickness detection instruction to the frost layer thickness detection device, triggering the frost layer thickness detection device to feedback the detected frost layer thickness. In some embodiments, the frost layer thickness detection device is an ultrasonic thickness gauge.

[0045] Optionally, obtaining the frosting thickness of the heat exchanger includes: obtaining image information of the heat exchanger and inputting the image information into a preset frosting thickness recognition model to obtain the frosting thickness of the heat exchanger.

[0046] Optionally, determining the heating temperature according to the thickness of the frost layer includes: determining a temperature correction value according to a first difference between the thickness of the frost layer and a preset first thickness threshold, and using the temperature correction value to correct the preset initial temperature to obtain the heating temperature.

[0047] Optionally, determining the temperature correction value according to the first difference between the frost layer thickness and a preset first thickness threshold comprises: when the first difference between the frost layer thickness and the preset first thickness threshold is less than or equal to 0, determining the temperature correction value to be 0. And / or, when the first difference between the frost layer thickness and the preset first thickness threshold is greater than 0, determining the temperature correction value to be the product of the first difference and the preset correction value.

[0048] In some embodiments, a first difference between the frost layer thickness and the preset first thickness threshold is obtained by subtracting a preset first thickness threshold from the frost layer thickness.

[0049] In some embodiments, the preset first thickness threshold is 2 mm. The preset initial temperature is 100 degrees Celsius, and the preset correction value is 100 degrees Celsius. When the first difference between the frost layer thickness and the preset first thickness threshold is less than or equal to 0, that is, when the frost layer thickness is less than or equal to 2 mm, the temperature correction value is determined to be 0, and the heating temperature is directly determined to be 100 degrees Celsius. When the first difference between the frost layer thickness and the preset first thickness threshold is greater than 0, that is, when the frost layer thickness is greater than 2 mm, the temperature correction value is determined as the product of the first difference and the preset correction value. That is, when the frost layer thickness increases by 1 mm, the temperature of the infrared heating tube is increased by 100 degrees Celsius.

[0050] Optionally, the preset initial temperature is corrected by using the temperature correction value to obtain the heating temperature; including: determining the sum of the temperature correction value and the initial temperature as the heating temperature.

[0051] Optionally, obtaining the frosting condition of the heat exchanger includes: obtaining the frosting condition of the heat exchanger when the outdoor ambient temperature is less than a preset temperature and the outdoor ambient humidity is less than a preset humidity. The heat exchanger is arranged in the outdoor unit of the air conditioner. When the air conditioner is operating in the heating mode, the outdoor heat exchanger of the air conditioner absorbs heat from the air and reduces the surface temperature of the outdoor heat exchanger. At this time, if the outdoor ambient temperature is low and the outdoor ambient humidity is high, then frost is likely to form on the surface of the outdoor heat exchanger. Therefore, by obtaining the frosting condition of the heat exchanger only when the outdoor ambient temperature is less than a preset temperature and the outdoor ambient humidity is less than a preset humidity, unnecessary detection steps can be reduced.

[0052] In some embodiments, the outdoor ambient temperature is the temperature of the area where the air conditioner outdoor unit is located. The outdoor ambient humidity is the humidity of the area where the air conditioner outdoor unit is located.

[0053] Furthermore, a temperature sensor is provided on the surface of the heat exchanger. The outdoor environment temperature is obtained in the following manner: a temperature acquisition instruction is sent to the temperature sensor, and the temperature sensor is triggered to feedback the detected temperature.

[0054] Furthermore, a humidity sensor is provided on the surface of the heat exchanger to obtain the outdoor environment humidity in the following manner: a humidity acquisition instruction is sent to the humidity sensor, and the humidity sensor is triggered to feedback the detected humidity.

[0055] Optionally, the air conditioner includes an external fan, which is attached to the rear of the air conditioner outdoor unit and is coaxial with the fan inside the air conditioner outdoor unit. After obtaining the frost layer thickness of the heat exchanger, the method further includes: determining a target speed of the external fan according to the frost layer thickness. The external fan is controlled to run at the target speed. In this way, the air circulation speed can be increased, thereby increasing the defrosting efficiency.

[0056] Combination Figure 2 As shown, an embodiment of the present disclosure provides a method for defrosting, which is applied to an air conditioner, wherein a heating device is provided on a heat exchanger of the air conditioner, and the air conditioner includes an external fan, which is attached to the rear of the air conditioner outdoor unit and is coaxial with the fan inside the air conditioner outdoor unit. The method includes:

[0057] Step S201: the electronic device obtains the frosting condition of the heat exchanger, where the frosting condition is used to indicate whether the heat exchanger is frosted or not.

[0058] Step S202: When the heat exchanger is frosted, the electronic device obtains the thickness of the frost layer on the heat exchanger.

[0059] Step S203: the electronic device determines the heating temperature according to the thickness of the frost layer.

[0060] Step S204: the electronic device controls the heating device to heat the heat exchanger according to the heating temperature.

[0061] Step S205: the electronic device determines a target rotation speed of the external fan according to the thickness of the frost layer.

[0062] Step S206: the electronic device controls the external fan to run at a target speed.

[0063] The defrosting method provided by the embodiment of the present disclosure is adopted. When the heat exchanger is frosted, the heating device provided on the heat exchanger is controlled to heat the heat exchanger, thereby directly heating the frost layer on the outer surface of the heat exchanger. Since there is no reversing flow of the refrigerant during the defrosting process, there is no need to re-establish the balance, thereby maintaining the indoor temperature stable. At the same time, by determining the heating temperature according to the thickness of the frost layer, and controlling the heating device to heat the heat exchanger according to the heating temperature, the heating temperature of the heating device can change with the change of the thickness of the frost layer, thereby improving the defrosting efficiency of the heat exchanger.

[0064] Further, the target speed of the external fan is determined according to the thickness of the frost layer, including: when the thickness of the frost layer is less than a preset second thickness threshold, the target speed of the external fan is determined to be 0. And / or, when the thickness of the frost layer is greater than or equal to the second thickness threshold, a second difference between the thickness of the frost layer and the second thickness threshold is obtained, and the target speed is obtained by calculating the second difference according to a preset algorithm. Wherein, the first thickness threshold is less than the second thickness threshold. In this way, when the thickness of the frost layer is greater than the second thickness threshold, not only the heating device is controlled to heat the heat exchanger, but also the external fan is controlled to rotate, so that the air flow speed around the heat exchanger can be accelerated, thereby accelerating defrosting.

[0065] Optionally, the target speed is obtained by calculating the second difference according to a preset algorithm, including: F=n×2×R1+R2, where F is the target speed, n is the second difference, R1 is a preset speed correction value, and R2 is a preset initial speed.

[0066] In some embodiments, the second thickness threshold is 10 mm. The rotation speed correction value is 200 rpm. The initial rotation speed is 600 rpm. The target rotation speed is less than or equal to 2000 rpm.

[0067] Optionally, after controlling the heating device to heat the heat exchanger according to the heating temperature, the method further includes: monitoring the frosting condition of the heat exchanger in real time, and controlling the heating device to be turned off when the heat exchanger is not frosted.

[0068] Optionally, after controlling the heating device to heat the heat exchanger according to the heating temperature, the method further includes: determining an interval time according to the thickness of the frost layer, monitoring the frosting condition of the heat exchanger in real time after the interval time is reached, and controlling the heating device to shut down when the heat exchanger is not frosted. Since the thicker the frost layer, the longer the corresponding defrosting time is usually, it is not necessary to detect the thickness of the frost layer when it is known that the thickness of the frost layer on the heat exchanger is large. Therefore, determining the interval time according to the thickness of the frost layer and monitoring the frosting condition of the heat exchanger after the interval time is reached can reduce unnecessary detection steps, thereby saving energy.

[0069] Optionally, determining the interval time according to the thickness of the frost layer includes: matching the interval time corresponding to the thickness of the frost layer in a preset database. The database stores the corresponding relationship between the thickness of the frost layer and the interval time.

[0070] In some embodiments, when the frosting thickness is less than or equal to 1 mm, the interval time corresponding to the frosting thickness is 10 minutes. When the frosting thickness is greater than 1 mm and less than or equal to 5 mm, the interval time corresponding to the frosting thickness is 20 minutes. When the frosting thickness is greater than 5 mm, the interval time corresponding to the frosting thickness is 30 minutes.

[0071] In some embodiments, in combination Figure 3As shown, the electronic device is an air conditioner, and the electronic device includes a controller 1, a heating device 2, a frost detection device 3, a frost layer thickness detection device 4, a temperature sensor 5, a humidity sensor 6 and an external fan 7. The controller 1 is electrically connected to the heating device 2, the frost detection device 3, the frost layer thickness detection device 4, the temperature sensor 5, the humidity sensor 6 and the external fan 7 respectively. The temperature sensor 5 is used to detect the outdoor ambient temperature and send the detected outdoor ambient temperature to the controller 1, and the humidity sensor 6 is used to detect the outdoor ambient humidity and send the detected outdoor ambient humidity to the controller 1. When the outdoor ambient temperature is less than the preset temperature and the outdoor ambient humidity is less than the preset humidity, the controller 1 sends a frost detection instruction to the frost detection device 3, and the frost detection device 3 feeds back the detected frost situation to the controller 1. When the frost situation of the controller 1 is frost on the heat exchanger, the controller 1 sends a thickness detection instruction to the frost layer thickness detection device 4, and the frost layer thickness detection device 4 feeds back the detected frost layer thickness to the controller 1. The controller 1 determines the heating temperature and the target speed of the external fan 7 according to the frost layer thickness. Then, the heating device 2 is controlled to heat the heat exchanger according to the heating temperature, and the external fan 7 is controlled to rotate according to the target speed.

[0072] Optionally, combined Figure 4 As shown, the embodiment of the present disclosure provides an air conditioner, including a compressor 8, a first heat exchange device 9, a second heat exchange device 10 and a heat exchanger 11. The first heat exchange device 9 is connected to the compressor 8 through a regulating valve, the first heat exchange device 9 is connected to the second heat exchange device 10 through a pipeline, the second heat exchange device 10 is arranged on the heat exchanger 11, and the second heat exchange device 10 stores an intermediate medium.

[0073] Optionally, the method for defrosting further includes: in the case of frosting of the heat exchanger, determining the operating state of the air conditioner, wherein the operating state indicates whether the air conditioner is operating or not operating. In the case of the air conditioner operating, the regulating valve is triggered to open, so that the refrigerant flows from the compressor into the first heat exchange device to exchange heat with the intermediate medium in the second heat exchange device. In this way, by allowing the refrigerant to flow into the first heat exchange device in the case of the air conditioner operating, so as to exchange heat with the intermediate medium in the second heat exchange device, since the second heat exchange device is arranged on the heat exchanger, and the refrigerant flowing out of the air conditioner is a high-temperature and high-pressure gas. Therefore, in the case where the refrigerant flows from the air conditioner into the first heat exchange device, the temperature of the intermediate medium in the second heat exchange device will rise accordingly, thereby achieving the effect of heating and defrosting the surface of the heat exchanger. In this process, the defrosting effect can be achieved without switching the operating state of the air conditioner, thereby reducing the fluctuation of the indoor temperature and improving the user's experience of using the air conditioner.

[0074] Combination Figure 5As shown, an embodiment of the present disclosure provides a device 500 for defrosting, which is applied to an air conditioner. A heating device is provided on the heat exchanger of the air conditioner. The device includes: a first acquisition module 501, a second acquisition module 502, a determination module 503 and a control module 504. The first acquisition module 501 is configured to obtain the frosting condition of the heat exchanger. The frosting condition is used to characterize whether the heat exchanger is frosted or not. The second acquisition module 502 is configured to obtain the thickness of the frost layer on the heat exchanger when the heat exchanger is frosted. The determination module 503 is configured to determine the heating temperature according to the thickness of the frost layer. The control module 504 is configured to control the heating device to heat the heat exchanger according to the heating temperature.

[0075] The defrosting device provided by the embodiment of the present disclosure controls the heating device provided on the heat exchanger to heat the heat exchanger when the heat exchanger is frosted, thereby directly heating the frost layer on the outer surface of the heat exchanger. Since there is no reversing flow of the refrigerant during the defrosting process, there is no need to re-establish the balance, thereby maintaining a stable indoor temperature. At the same time, by determining the heating temperature according to the thickness of the frost layer, and controlling the heating device to heat the heat exchanger according to the heating temperature, the heating temperature of the heating device can change with the change of the thickness of the frost layer, thereby improving the defrosting efficiency of the heat exchanger.

[0076] Optionally, a frost detection device is provided on the heat exchanger; the first acquisition module is configured to obtain the frost condition of the heat exchanger in the following manner: sending a frost detection instruction to the frost detection device, triggering the frost detection device to feedback the detected frost condition at every preset time period.

[0077] Optionally, a frost thickness detection device is provided on the heat exchanger, and the second acquisition module is configured to obtain the frost thickness on the heat exchanger in the following manner: sending a thickness detection instruction to the frost thickness detection device, triggering the frost thickness detection device to feed back the detected frost thickness.

[0078] Optionally, the determination module is configured to determine the heating temperature according to the frost layer thickness in the following manner: determine a temperature correction value according to a first difference between the frost layer thickness and a preset first thickness threshold; and use the temperature correction value to correct a preset initial temperature to obtain a heating temperature.

[0079] Optionally, determining the temperature correction value according to the first difference between the frost layer thickness and a preset first thickness threshold comprises: when the first difference between the frost layer thickness and the preset first thickness threshold is less than or equal to 0, determining the temperature correction value to be 0. And / or, when the first difference between the frost layer thickness and the preset first thickness threshold is greater than 0, determining the temperature correction value to be the product of the first difference and the preset correction value.

[0080] Optionally, the first acquisition module is configured to acquire the frosting condition of the heat exchanger in the following manner: when the outdoor ambient temperature is lower than a preset temperature and the outdoor ambient humidity is lower than a preset humidity, acquire the frosting condition of the heat exchanger.

[0081] Optionally, the defrosting device further comprises: a monitoring module configured to monitor the frosting condition of the heat exchanger in real time. The control module is further configured to control the heating device to be turned off when the heat exchanger is not frosted.

[0082] Combination Figure 6 As shown, an embodiment of the present disclosure provides an electronic device 600, including a processor (processor) 601 and a memory (memory) 602. Optionally, the device may also include a communication interface (CommunicationInterface) 603 and a bus 604. Among them, the processor 601, the communication interface 603, and the memory 602 can communicate with each other through the bus 604. The communication interface 603 can be used for information transmission. The processor 601 can call the logic instructions in the memory 602 to execute the method for defrosting of the above embodiment.

[0083] The electronic device provided by the embodiment of the present disclosure controls the heating device provided on the heat exchanger to heat the heat exchanger when the heat exchanger is frosted, thereby directly heating the frost layer on the outer surface of the heat exchanger. Since there is no reversing flow of the refrigerant during the defrosting process, there is no need to re-establish the balance, thereby maintaining a stable indoor temperature. At the same time, by determining the heating temperature according to the thickness of the frost layer, and controlling the heating device to heat the heat exchanger according to the heating temperature, the heating temperature of the heating device can change with the change of the thickness of the frost layer, thereby improving the defrosting efficiency of the heat exchanger.

[0084] In addition, the logic instructions in the memory 602 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0085] The memory 602 is a computer-readable storage medium that can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 601 executes the function application and data processing by running the program instructions / modules stored in the memory 602, that is, the method for defrosting in the above embodiment is implemented.

[0086] The memory 602 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 602 may include a high-speed random access memory and may also include a non-volatile memory.

[0087] An embodiment of the present disclosure provides a storage medium storing program instructions, wherein the program instructions, when executed, execute the above-mentioned method for defrosting.

[0088] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0089] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0090] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0091] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0092] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0093] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for defrosting, applied to air conditioners, characterized in that: A heating device is provided on a heat exchanger of the air conditioner, and the method comprises: Obtain the frosting condition of the heat exchanger, which is used to characterize whether the heat exchanger is frosted or not; In case of frost on the heat exchanger, obtain the thickness of the frost layer on the heat exchanger; Determine the heating temperature according to the thickness of the frost layer; The heating device is controlled to heat the heat exchanger according to the heating temperature.

2. The method according to claim 1, characterized in that The heat exchanger is provided with a frost detection device; the frost condition of the heat exchanger is obtained, including: A frost detection instruction is sent to the frost detection device, triggering the frost detection device to feedback the detected frost situation at every preset time period.

3. The method according to claim 1, characterized in that The heat exchanger is provided with a frost layer thickness detection device to obtain the frost layer thickness on the heat exchanger, including: Sending a thickness detection instruction to the frost layer thickness detection device triggers the frost layer thickness detection device to feed back the detected frost layer thickness.

4. The method according to claim 1, characterized in that: Determine the heating temperature according to the thickness of the frost layer, including: Determining a temperature correction value according to a first difference between the thickness of the frost layer and a preset first thickness threshold; The preset initial temperature is corrected using the temperature correction value to obtain the heating temperature.

5. The method according to claim 4, characterized in that Determining a temperature correction value according to a first difference between the thickness of the frost layer and a preset first thickness threshold comprises: When the first difference between the frost layer thickness and the preset first thickness threshold is less than or equal to 0, determining the temperature correction value to be 0; and / or, When a first difference between the frost layer thickness and a preset first thickness threshold is greater than 0, the temperature correction value is determined to be a product of the first difference and the preset correction value.

6. The method according to claim 1, characterized in that Obtain the frost condition of the heat exchanger, including: When the outdoor ambient temperature is lower than a preset temperature and the outdoor ambient humidity is lower than a preset humidity, the frosting condition of the heat exchanger is obtained.

7. The method according to any one of claims 1 to 6, characterized in that: After the heating device is controlled to heat the heat exchanger according to the heating temperature, the method further comprises: Real-time monitoring of the frosting condition of the heat exchanger; When the heat exchanger is not frosted, the heating device is controlled to be turned off.

8. A defrosting device, used in air conditioners, characterized in that: A heating device is provided on the heat exchanger of the air conditioner, and the device comprises: A first acquisition module is configured to acquire a frosting condition of the heat exchanger, where the frosting condition is used to characterize whether the heat exchanger is frosted or not; The second acquisition module is configured to acquire the thickness of the frost layer on the heat exchanger when the heat exchanger is frosted; A determination module configured to determine a heating temperature according to a thickness of a frost layer; The control module is configured to control the heating device to heat the heat exchanger according to the heating temperature.

9. An electronic device comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the defrosting method according to any one of claims 1 to 7 when running the program instructions.

10. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the defrosting method according to any one of claims 1 to 7 is executed.

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