Method and apparatus for defrosting, electronic device, storage medium

Abstract

The application relates to the air conditioning technical field, and discloses a method for defrosting, which comprises the following steps: obtaining the frosting condition of a heat exchanger. In the case that the heat exchanger is frosting, the frost layer thickness on the heat exchanger is obtained. The heating temperature is determined according to the frost layer thickness. The heating device is controlled to heat the heat exchanger according to the heating temperature. In the case that the heat exchanger is frosting, the heating device arranged on the heat exchanger is controlled to heat the heat exchanger, so that the frost layer on the outer surface of the heat exchanger is directly heated. Since the refrigerant does not flow reversely during the defrosting process, the balance does not need to be re-established, so that the indoor temperature can be maintained stable. Meanwhile, the heating temperature of the heating device can be changed along with the change of the frost layer thickness by determining the heating temperature according to the frost layer thickness and controlling the heating device to heat the heat exchanger according to the heating temperature, so that the defrosting efficiency of the heat exchanger can be improved. The application further discloses a device for defrosting, an electronic equipment and a storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, for example to a method and device for defrosting, an electronic device and a storage medium. BACKGROUND

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

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

[0004] Because the air conditioner switches from heating cycle to refrigeration cycle during defrosting, the indoor temperature fluctuates greatly, resulting in poor air conditioner experience.

[0005] It should be noted that the information disclosed in the above BACKGROUND section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a brief overview is given below. The summary is not an overview in a general sense, nor is it intended to determine key / important constituent elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

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

[0008] In some embodiments, the method for defrosting is applied to an air conditioner, a heating device is arranged on a heat exchanger of the air conditioner, and the method comprises: obtaining a frosting condition of the heat exchanger, the frosting condition being used to represent whether the heat exchanger is frosted or not; obtaining a frost layer thickness on the heat exchanger in the case that the heat exchanger is frosted; determining a heating temperature according to the frost layer thickness; and controlling the heating device to heat the heat exchanger according to the heating temperature.

[0009] In some embodiments, a frosting detection device is arranged on the heat exchanger; and obtaining the frosting condition of the heat exchanger comprises: sending a frosting detection instruction to the frosting detection device to trigger the frosting detection device to feed back a detected frosting condition every interval of a preset time period.

[0010] In some embodiments, the frost thickness detection device is arranged on the heat exchanger, and the frost thickness on the heat exchanger is obtained by sending a thickness detection instruction to the frost thickness detection device and triggering the frost thickness detection device to feed back the detected frost thickness.

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

[0012] In some embodiments, the temperature correction value is determined according to the first difference between the frost thickness and the preset first thickness threshold, including: in the case that the first difference between the frost thickness and the preset first thickness threshold is less than or equal to 0, determining the temperature correction value as 0; and / or, in the case that the first difference between the frost thickness and the preset first thickness threshold is greater than 0, determining the temperature correction value as a product between the first difference and a preset correction value.

[0013] In some embodiments, the frosting condition of the heat exchanger is obtained by: in the case that the outdoor ambient temperature is less than a preset temperature and the outdoor ambient humidity is less than a preset humidity, obtaining the frosting condition of the heat exchanger.

[0014] In some embodiments, after the heating device is controlled 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 in the case that the heat exchanger is not frosted, controlling the heating device to be turned off.

[0015] In some embodiments, the device for defrosting is applied to an air conditioner, and a heating device is arranged on a heat exchanger of the air conditioner, and the device includes: a first obtaining module configured to obtain a frosting condition of the heat exchanger, the frosting condition being used to represent whether the heat exchanger is frosted or not; a second obtaining module configured to obtain a frost thickness on the heat exchanger in the case that the heat exchanger is frosted; a determining module configured to determine a heating temperature according to the frost thickness; 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 the program instructions are executed to perform the above-mentioned method for defrosting when running.

[0018] The method and device for defrosting provided by the embodiments of the present disclosure can achieve the following technical effects: by controlling the heating device arranged on the heat exchanger to heat the heat exchanger when the heat exchanger is frosted, direct heating of the frost layer on the outer surface of the heat exchanger is achieved, and since there is no refrigerant flow reversal during the defrosting process, there is no need to reestablish the balance, so that the indoor temperature can be maintained 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, so that the defrosting efficiency of the heat exchanger can be improved.

[0019] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, in which like reference numerals denote like parts, and in which:

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

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

[0027] In order to enable a person skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0028] The terms "first", "second", and the like in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0029] Unless otherwise specified, the term "a plurality of" means two or more.

[0030] In the present disclosure, the character " / " represents a "or" relationship between the objects before and after it. For example, A / B means: A or B.

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

[0032] The term "corresponding" can refer to an association or binding relationship. A and B correspond to each other means that there is an association or binding relationship between A and B.

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

[0034] In some embodiments, in the case of a server or a computer, the server or the computer is connected to the air conditioner through the Internet. The air conditioner includes a heat exchanger, and a heating device is arranged on the heat exchanger. The server or the computer controls the heating device to heat the heat exchanger, so as to realize defrosting of the heat exchanger.

[0035] In some embodiments, in the case of an electronic device being an air conditioner. The air conditioner includes a heat exchanger, and a heating device is arranged on the heat exchanger. The air conditioner controls the heating device to heat the heat exchanger, so as to realize defrosting of the heat exchanger.

[0036] In combination Figure 1 As shown, the present disclosure provides a method for defrosting, applied to an air conditioner, a heating device is arranged on a heat exchanger of the air conditioner, and the method comprises:

[0037] Step S101, the electronic device acquires the frosting condition of the heat exchanger, and the frosting condition is used to represent whether the heat exchanger is frosted or not.

[0038] Step S102, in the case of frosting of the heat exchanger, the electronic device acquires 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] In step S104, the electronic device controls the heating device to heat the heat exchanger according to the heating temperature.

[0041] By using the method for defrosting provided in the embodiments of the present disclosure, the heating device arranged on the heat exchanger is controlled to heat the heat exchanger when the heat exchanger is frosted, so that the frost layer on the outer surface of the heat exchanger is directly heated. Since there is no refrigerant reversing flow during the defrosting process, it is not necessary to reestablish the balance, so that the indoor temperature can be maintained stable. Meanwhile, the heating temperature of the heating device can be changed with the change of the frost layer thickness by determining the heating temperature according to the frost layer thickness and controlling the heating device to heat the heat exchanger according to the heating temperature, so that the defrosting efficiency of the heat exchanger can be improved.

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

[0043] Optionally, the heat exchanger is provided with a frosting detection device, and the frosting condition of the heat exchanger is obtained by sending a frosting detection instruction to the frosting detection device to trigger the frosting detection device to feed back the detected frosting condition every interval of a preset time period. In some embodiments, the frosting detection device is a frosting detection sensor.

[0044] Optionally, the heat exchanger is provided with a frost layer thickness detection device, and the frost layer thickness on the heat exchanger is obtained by sending a thickness detection instruction to the frost layer thickness detection device to trigger the frost layer thickness detection device to feed back the detected frost layer thickness. In some embodiments, the frost layer thickness detection device is an ultrasonic thickness gauge.

[0045] Optionally, the frost layer thickness of the heat exchanger is obtained by obtaining image information of the heat exchanger. The image information is input into a preset frost layer thickness identification model to obtain the frost layer thickness of the heat exchanger.

[0046] Optionally, the heating temperature is determined according to the first difference between the frost layer thickness and the preset first thickness threshold value, including: determining a temperature correction value according to the first difference between the frost layer thickness and the preset first thickness threshold value. The preset initial temperature is corrected by using the temperature correction value to obtain the heating temperature.

[0047] Optionally, the temperature correction value is determined according to the first difference between the frost layer thickness and the preset first thickness threshold value, including: in the case that the first difference between the frost layer thickness and the preset first thickness threshold value is less than or equal to 0, the temperature correction value is determined as 0. And / or, in the case that the first difference between the frost layer thickness and the preset first thickness threshold value is greater than 0, the temperature correction value is determined as the product between the first difference and a preset correction value.

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

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

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

[0051] Optionally, the frosting condition of the heat exchanger is obtained in the case that the outdoor environment temperature is less than a preset temperature and the outdoor environment humidity is less than a preset humidity. The heat exchanger is arranged in the air conditioner outdoor unit. When the air conditioner operates in the heating mode, the outdoor heat exchanger of the air conditioner absorbs heat in the air to reduce the temperature of the surface of the outdoor heat exchanger. At this time, if the outdoor environment temperature is low and the outdoor environment humidity is large, the surface of the outdoor heat exchanger is prone to frost formation. Therefore, by obtaining the frosting condition of the heat exchanger in the case that the outdoor environment temperature is less than a preset temperature and the outdoor environment humidity is less than a preset humidity, unnecessary detection steps can be reduced.

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

[0053] Further, a temperature sensor is arranged on the surface of the heat exchanger. The outdoor environment temperature is obtained by: sending a temperature acquisition instruction to the temperature sensor to trigger the temperature sensor to feed back the detected temperature.

[0054] Further, a humidity sensor is arranged on the surface of the heat exchanger. The outdoor environment humidity is obtained by: sending a humidity acquisition instruction to the humidity sensor to trigger the humidity sensor to feed back the detected humidity.

[0055] Optionally, the air conditioner comprises an external fan attached to the rear of the air conditioner outdoor unit and coaxial with the fan inside the air conditioner outdoor unit. After obtaining the frost layer thickness of the heat exchanger, further comprising: determining a target rotating speed of the external fan according to the frost layer thickness. Controlling the external fan to operate at the target rotating speed. In this way, the air flow speed can be accelerated, thereby accelerating the defrosting efficiency.

[0056] In combination withFigure 2 As shown, the embodiment of the present disclosure provides a method for defrosting, applied to an air conditioner, a heating device is arranged on a heat exchanger of the air conditioner, and the air conditioner comprises an external fan attached to the rear of the air conditioner outdoor unit and coaxial with the fan inside the air conditioner outdoor unit. The method comprises:

[0057] In step S201, the electronic device acquires the frosting condition of the heat exchanger, which is used to represent whether the heat exchanger is frosted or not.

[0058] In step S202, in the case that the heat exchanger is frosted, the electronic device acquires the frost layer thickness on the heat exchanger.

[0059] In step S203, the electronic device determines the heating temperature according to the frost layer thickness.

[0060] In step S204, the electronic device controls the heating device to heat the heat exchanger according to the heating temperature.

[0061] In step S205, the electronic device determines the target rotating speed of the external fan according to the frost layer thickness.

[0062] In step S206, the electronic device controls the external fan to operate at the target rotating speed.

[0063] By using the method for defrosting provided by the embodiment of the present disclosure, in the case that the heat exchanger is frosted, the heating device arranged on the heat exchanger is controlled to heat the heat exchanger, so as to directly heat the frost layer on the outer surface of the heat exchanger. Since there is no refrigerant reversing flow in the defrosting process, it is not necessary to re-establish the balance, so as to maintain the indoor temperature stable. At the same time, the heating temperature of the heating device can be changed with the change of the frost layer thickness by determining the heating temperature according to the frost layer thickness and controlling the heating device to heat the heat exchanger according to the heating temperature, so as to improve the defrosting efficiency of the heat exchanger.

[0064] Further, the target rotating speed of the external fan is determined according to the frost layer thickness, which comprises: in the case that the frost layer thickness is less than a preset second thickness threshold, the target rotating speed of the external fan is determined as 0. And / or, in the case that the frost layer thickness is greater than or equal to the second thickness threshold, a second difference between the frost layer thickness and the second thickness threshold is acquired, and the target rotating 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, in the case that the frost layer thickness 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 as to accelerate the air flow speed around the heat exchanger, thereby accelerating the defrosting.

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

[0066] In some embodiments, the second thickness threshold is 10 millimeters. The rotating speed correction value is 200 revolutions per minute. The initial rotating speed is 600 revolutions per minute. The target rotating speed is less than or equal to 2000 revolutions per minute.

[0067] Optionally, after the heating device is controlled 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 in the case that the heat exchanger is not frosted.

[0068] Optionally, after the heating device is controlled to heat the heat exchanger according to the heating temperature, the method further includes: determining an interval time according to the frost thickness, monitoring the frosting condition of the heat exchanger after the interval time is reached, and controlling the heating device to be turned off in the case that the heat exchanger is not frosted. Since the greater the frost thickness is, the longer the defrosting time is generally, in the case that it is known that the frost thickness on the heat exchanger is large, the frost thickness does not need to be detected. Therefore, the interval time is determined according to the frost thickness, and the frosting condition of the heat exchanger is monitored only after the interval time is reached, which can reduce unnecessary detection steps and save energy.

[0069] Optionally, the interval time is determined according to the frost thickness, including: matching the interval time corresponding to the frost thickness in a preset database. The database stores the corresponding relationship between the frost thickness and the interval time.

[0070] In some embodiments, in the case that the frost thickness is less than or equal to 1 millimeter, the interval time corresponding to the frost thickness is 10 minutes. In the case that the frost thickness is greater than 1 millimeter and less than or equal to 5 millimeters, the interval time corresponding to the frost thickness is 20 minutes. In the case that the frost thickness is greater than 5 millimeters, the interval time corresponding to the frost thickness is 30 minutes.

[0071] In some embodiments, in combination with Figure 3As shown, the electronic device is an air conditioner, and the electronic device comprises 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 configured to detect an outdoor environment temperature and send the detected outdoor environment temperature to the controller 1, and the humidity sensor 6 is configured to detect an outdoor environment humidity and send the detected outdoor environment humidity to the controller 1. The controller 1 sends a frost detection instruction to the frost detection device 3 when the outdoor environment temperature is less than a preset temperature and the outdoor environment humidity is less than a preset humidity, and the frost detection device 3 feeds back a detected frost condition to the controller 1. The controller 1 sends a thickness detection instruction to the frost layer thickness detection device 4 when the frost condition is a frost condition of the heat exchanger, and the frost layer thickness detection device 4 feeds back a detected frost layer thickness to the controller 1. The controller 1 determines a heating temperature and a target rotating speed of the external fan 7 according to the frost layer thickness. Then the controller 1 controls the heating device 2 to heat the heat exchanger according to the heating temperature, and controls the external fan 7 to rotate according to the target rotating speed.

[0072] Optionally, in combination with Figure 4 As shown, the present embodiment provides an air conditioner, comprising 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 an adjusting 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 comprises: determining a running state of the air conditioner in the case that the heat exchanger is frosted, wherein the running state represents that the air conditioner is running or not running. In the case that the air conditioner is running, triggering the adjusting valve to open, so that the refrigerant flows into the first heat exchange device from the compressor to heat the intermediate medium in the second heat exchange device. In this way, by causing the refrigerant to flow into the first heat exchange device to heat the intermediate medium in the second heat exchange device in the case that the air conditioner is running, 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 that the refrigerant flows into the first heat exchange device from the air conditioner, the temperature of the intermediate medium in the second heat exchange device will rise, 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 running state of the air conditioner, thereby reducing the fluctuation of the indoor temperature and improving the user experience of using the air conditioner.

[0074] In combination with Figure 5As shown, the embodiment of the present disclosure provides a device 500 for defrosting, applied to an air conditioner, a heating device is arranged on a heat exchanger of the air conditioner, and the device comprises a first obtaining module 501, a second obtaining module 502, a determining module 503 and a control module 504. The first obtaining module 501 is configured to obtain a frosting condition of the heat exchanger. The frosting condition is used to represent whether the heat exchanger is frosted or not. The second obtaining module 502 is configured to obtain a frost layer thickness on the heat exchanger in the case that the heat exchanger is frosted. The determining module 503 is configured to determine a heating temperature according to the frost layer thickness. The control module 504 is configured to control the heating device to heat the heat exchanger according to the heating temperature.

[0075] By using the device for defrosting provided by the embodiment of the present disclosure, the heat exchanger is directly heated by controlling the heating device arranged on the heat exchanger to heat the heat exchanger in the case that the heat exchanger is frosted, and since there is no refrigerant reversing flow in the defrosting process, it is not necessary to re-establish the balance, so that the indoor temperature can be maintained stable. At the same time, by determining the heating temperature according to the frost layer thickness and controlling the heating device to heat the heat exchanger according to the heating temperature, the heating temperature of the heating device can be changed with the change of the frost layer thickness, so that the defrosting efficiency of the heat exchanger can be improved.

[0076] Optionally, a frosting detection device is arranged on the heat exchanger; the first obtaining module is configured to obtain the frosting condition of the heat exchanger by sending a frosting detection instruction to the frosting detection device to trigger the frosting detection device to feed back the detected frosting condition every interval of a preset time period.

[0077] Optionally, a frost layer thickness detection device is arranged on the heat exchanger, and the second obtaining module is configured to obtain the frost layer thickness on the heat exchanger by sending a thickness detection instruction to the frost layer thickness detection device to trigger the frost layer thickness detection device to feed back the detected frost layer thickness.

[0078] Optionally, the determining module is configured to determine the heating temperature according to the frost layer thickness by: determining a temperature correction value according to a first difference between the frost layer thickness and a preset first thickness threshold value; and correcting a preset initial temperature by using the temperature correction value to obtain the heating temperature.

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

[0080] Optionally, the first obtaining module is configured to obtain the frosting condition of the heat exchanger by: 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.

[0081] Optionally, the device for defrosting 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 frosting.

[0082] In combination with Figure 6 As shown in the accompanying drawings, the embodiments of the present disclosure provide an electronic device 600, comprising a processor 601 and a memory 602. Optionally, the device can further comprise a communication interface 603 and a bus 604. Wherein the processor 601, the communication interface 603 and the memory 602 can complete mutual communication through the bus 604. The communication interface 603 can be used for information transmission. The processor 601 can invoke the logical instructions in the memory 602 to execute the method for defrosting in the above-mentioned embodiments.

[0083] By using the electronic device provided by the embodiments of the present disclosure, the heating device arranged on the heat exchanger is controlled to heat the heat exchanger when the heat exchanger is frosting, so as to realize direct heating of the frost layer on the outer surface of the heat exchanger. Since there is no refrigerant reversing flow in the defrosting process, it is not necessary to re-establish the balance, so as to maintain the indoor temperature stable. At the same time, the heating temperature of the heating device can be changed with the change of the frost layer thickness by determining the heating temperature according to the frost layer thickness and controlling the heating device to heat the heat exchanger according to the heating temperature, so as to improve the defrosting efficiency of the heat exchanger.

[0084] In addition, the logical instructions in the memory 602 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0085] The memory 602 as a kind of computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments 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, realizes the method for defrosting in the above-mentioned embodiments.

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

[0087] The embodiment of the present disclosure provides a storage medium, which stores program instructions. When the program instructions are executed, the method for defrosting is performed.

[0088] The computer readable storage medium described above can be a transitory 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. The computer software product is stored in a storage medium and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0090] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0091] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0092] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0093] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, 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 sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for defrosting, applied to an air conditioner, characterized by, The method comprises the following steps: Obtaining the frosting condition of the heat exchanger, the frosting condition being used to represent whether the heat exchanger is frosted or not; In the case that the heat exchanger is frosted, obtaining the frost thickness on the heat exchanger; Determining the heating temperature according to the frost thickness; Controlling the heating device to heat the heat exchanger according to the heating temperature; Determining the interval time according to the frost thickness, and monitoring the frosting condition of the heat exchanger in real time after the interval time is reached, and controlling the heating device to be closed in the case that the heat exchanger is not frosted; wherein the thicker the frost thickness is, the longer the interval time corresponding to the frost thickness is.

2. The method of claim 1, wherein, The heat exchanger is provided with a frosting detection device; obtaining the frosting condition of the heat exchanger comprises the following steps: Sending a frosting detection instruction to the frosting detection device to trigger the frosting detection device to feed back the detected frosting condition every interval of a preset time period.

3. The method of claim 1, wherein, The heat exchanger is provided with a frost thickness detection device, and obtaining the frost thickness on the heat exchanger comprises the following steps: Sending a thickness detection instruction to the frost thickness detection device to trigger the frost thickness detection device to feed back the detected frost thickness.

4. The method of claim 1, wherein, Determining the heating temperature according to the frost thickness comprises the following steps: Determining a temperature correction value according to a first difference between the frost thickness and a preset first thickness threshold value; Correcting the preset initial temperature by using the temperature correction value to obtain the heating temperature.

5. The method of claim 4, wherein, Determining the temperature correction value according to the first difference between the frost thickness and the preset first thickness threshold value comprises the following steps: In the case that the first difference between the frost thickness and the preset first thickness threshold value is less than or equal to 0, determining the temperature correction value to be 0; and / or, In the case that the first difference between the frost thickness and the preset first thickness threshold value is greater than 0, determining the temperature correction value to be the product between the first difference and a preset correction value.

6. The method of claim 1, wherein, Obtaining the frosting condition of the heat exchanger comprises the following steps: In the case that the outdoor environment temperature is less than a preset temperature and the outdoor environment humidity is less than a preset humidity, obtaining the frosting condition of the heat exchanger.

7. The method according to any one of claims 1 to 6, characterized in that, After controlling the heating device to heat the heat exchanger according to the heating temperature, the method further comprises the following steps: Monitoring the frosting condition of the heat exchanger in real time; In the case that the heat exchanger is not frosted, controlling the heating device to be closed.

8. A device for defrosting, applied to an air conditioner, characterized in that, The device comprises: A first obtaining module configured to obtain the frosting condition of the heat exchanger, the frosting condition being used to represent whether the heat exchanger is frosted or not; A second obtaining module configured to obtain the frost thickness on the heat exchanger in the case that the heat exchanger is frosted; A determining module configured to determine the heating temperature according to the frost thickness; A control module configured to control the heating device to heat the heat exchanger according to the heating temperature; determine the interval time according to the frost thickness, and monitor the frosting condition of the heat exchanger in real time after the interval time is reached, and control the heating device to be closed in the case that the heat exchanger is not frosted; wherein the thicker the frost thickness is, the longer the interval time corresponding to the frost thickness is.

9. An electronic device comprising a processor and a memory having stored thereon program instructions, wherein, The processor is configured to execute the method for defrosting as claimed in any one of claims 1 to 7 when the program instructions are executed.

10. A storage medium storing program instructions, characterized in that, The program instructions are executed to execute the method for defrosting as claimed in any one of claims 1 to 7.

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