Defrosting processing method, device and equipment and computer storage medium

Abstract

The invention belongs to the technical field of intelligent household appliances, and particularly relates to a defrosting processing method, device and equipment and a computer storage medium. According to the method, an eight-way reversing valve structure is arranged on a main path of a condenser of an outdoor unit of the intelligent household electrical appliance, and the temperature of the environment where the outdoor unit is located is judged; and when the environment temperature is not larger than the preset temperature, the intelligent household electrical appliance is controlled to open a high-temperature refrigerant branch, a high-temperature refrigerant is transmitted to a corresponding condenser branch through a switching valve element of the eight-way reversing valve, and an outdoor unit of the intelligent household electrical appliance is heated and defrosted. According to the method, the intelligent household electrical appliance can be defrosted without shutdown, the service life of the intelligent household electrical appliance is prolonged, the defrosting working efficiency is improved, and the user experience is also improved.

Description

Technical Field

[0001] The present application belongs to the technical field of smart home appliances, and specifically relates to a defrosting processing method, device, equipment and computer storage medium. Background Art

[0002] With the continuous development of science and technology, various types of smart home appliances are constantly iterating and updating to meet users' ever-increasing life needs and improve their quality of life.

[0003] Among them, air conditioning is a relatively common and widely used smart home appliance. Air conditioning is an air conditioner, which refers to the process of using artificial means to adjust and control the temperature, humidity, cleanliness, speed and other parameters of the ambient air in a building or structure.

[0004] However, when the air conditioner is in heating mode and the temperature of the environment where the air conditioner outdoor unit is located is too low, frost is easy to form on the surface of the outdoor unit heat exchanger, which will affect the air conditioner's hot and cold conversion effect. The commonly used defrosting method is to stop the machine for defrosting, but the use of the method of stopping the machine for defrosting will affect the working efficiency of the air conditioner and the user experience. Summary of the invention

[0005] The present application provides a defrosting processing method, device, equipment and computer storage medium to solve the problem that air conditioning shutdown defrosting will affect air conditioning capacity and user experience.

[0006] In a first aspect, the present application provides a defrosting method, comprising:

[0007] Obtaining the ambient temperature of the outdoor unit, and determining whether the ambient temperature is greater than a preset ambient temperature;

[0008] When the ambient temperature is not greater than the preset temperature, the smart home appliance is controlled to open the high-temperature refrigerant branch, and the switching valve core of the eight-way reversing valve is controlled to switch from the initial conduction state to the first conduction state, and the conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and the multiple condenser branches;

[0009] Control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

[0010] Optionally, controlling the switching valve core of the eight-way reversing valve to switch from an initial conducting state to a first conducting state includes:

[0011] Obtaining a high-temperature refrigerant temperature, and determining whether the high-temperature refrigerant temperature is less than a preset refrigerant temperature;

[0012] When the high-temperature refrigerant temperature is not less than the preset refrigerant temperature, the switching valve core of the eight-way reversing valve is controlled to switch from the initial conducting state to the first conducting state.

[0013] Optionally, controlling the high-temperature refrigerant to enter the target condenser branch includes:

[0014] Determining the target condenser branch that is in conduction with the high-temperature refrigerant branch according to the first conduction state of the switching valve core;

[0015] Control the high-temperature refrigerant to enter the target condenser branch.

[0016] Optionally, controlling the smart home appliance to open a high-temperature refrigerant branch includes:

[0017] Obtaining an initial valve opening of the electronic expansion valve of the high-temperature refrigerant branch;

[0018] The initial valve opening is adjusted to a target valve opening, and the target valve opening is used to indicate that the flow rate of the high-temperature refrigerant branch is a preset flow rate.

[0019] Optionally, the target condenser branch is a first condenser branch, and controlling the high-temperature refrigerant to enter the target condenser branch includes:

[0020] Controlling the high-temperature refrigerant to enter the first condenser branch;

[0021] At preset time intervals, the switching valve core is repeatedly controlled to switch from the first conduction state to the second conduction state, and the high-temperature refrigerant is repeatedly controlled to enter the second condenser branch corresponding to the second conduction state until the defrosting process is completed.

[0022] Optionally, after controlling the high-temperature refrigerant to enter the target condenser branch, the method further includes:

[0023] Re-acquiring the ambient temperature of the outdoor unit, and determining whether the new ambient temperature is greater than the preset ambient temperature;

[0024] When the new ambient temperature is greater than the preset ambient temperature, the high-temperature refrigerant branch of the smart home appliance is controlled to be closed, and the conduction state of the switching valve core is switched to the initial conduction state.

[0025] In a second aspect, the present application provides a defrosting device, comprising:

[0026] The acquisition module is used to obtain the ambient temperature of the outdoor unit.

[0027] The judging module is used to judge whether the ambient temperature is greater than a preset ambient temperature.

[0028] The processing module is used to control the smart home appliance to open the high-temperature refrigerant branch when the ambient temperature is not greater than the preset temperature, and control the switching valve core of the eight-way reversing valve to switch from an initial conduction state to a first conduction state, and the conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and multiple condenser branches.

[0029] The processing module is also used to control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

[0030] Optionally, the acquisition module is also used to obtain the temperature of the high-temperature refrigerant.

[0031] The judgment module is further used to judge whether the high-temperature refrigerant temperature is lower than a preset refrigerant temperature.

[0032] The processing module is also used to control the switching valve core of the eight-way reversing valve to switch from an initial conducting state to a first conducting state when the temperature of the high-temperature refrigerant is not less than the preset refrigerant temperature.

[0033] Optionally, the defrost processing device further includes: a determination module.

[0034] The determination module is used to determine the target condenser branch that is in conduction with the high-temperature refrigerant branch according to the first conduction state of the switching valve core.

[0035] Optionally, the acquisition module is specifically used to obtain the initial valve opening of the electronic expansion valve of the high-temperature refrigerant branch.

[0036] The processing module is further used to adjust the initial valve opening to a target valve opening, and the target valve opening is used to indicate that the flow rate of the high-temperature refrigerant branch is a preset flow rate.

[0037] Optionally, the processing module is specifically used to control the high-temperature refrigerant to enter the first condenser branch.

[0038] The processing module is specifically used to repeatedly control the switching valve core to switch from the first conduction state to the second conduction state at intervals of a preset time, and repeatedly control the high-temperature refrigerant to enter the second condenser branch corresponding to the second conduction state until the defrosting process is completed.

[0039] Optionally, the acquisition module is also used to re-acquire the ambient temperature of the outdoor unit.

[0040] The judging module is further used to judge whether the new ambient temperature is greater than the preset ambient temperature.

[0041] The processing module is also used to control the high-temperature refrigerant branch of the smart home appliance to close when the new ambient temperature is greater than the preset ambient temperature, and to switch the conduction state of the switching valve core to an initial conduction state.

[0042] In a third aspect, the present application provides a defrosting device, comprising:

[0043] Memory;

[0044] processor;

[0045] Wherein, the memory stores computer-executable instructions;

[0046] The processor executes the computer-executable instructions stored in the memory to implement the defrost processing method as described in the first aspect and various possible implementations of the first aspect.

[0047] In a fourth aspect, the present application provides a computer storage medium having computer execution instructions stored thereon, wherein the computer execution instructions are executed by a processor to implement the defrost processing method as described in the first aspect and various possible implementations of the first aspect.

[0048] The defrosting method provided by the present application is to set an eight-way reversing valve structure on the main condenser circuit of the outdoor unit of the smart home appliance, and judge the ambient temperature of the outdoor unit; when the ambient temperature is not greater than the preset temperature, control the smart home appliance to open the high-temperature refrigerant branch, and transmit the high-temperature refrigerant to the corresponding condenser branch through the switching valve core of the eight-way reversing valve, so as to heat up and defrost the outdoor unit of the smart home appliance. The method realizes the defrosting of the smart home appliance without stopping, prolongs the service life of the smart home appliance, improves the working efficiency of defrosting, and also improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0050] Figure 1 This is the process of the defrosting method provided by this application Figure 1 ;

[0051] Figure 2 This is the process of the defrosting method provided by this application Figure 2 ;

[0052] Figure 3 It is a structural schematic diagram of the defrosting treatment device provided by the present application;

[0053] Figure 4 It is a structural schematic diagram of the defrost processing equipment provided in this application.

[0054] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention 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 numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein, for example.

[0057] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0058] With the continuous development of science and technology, various types of smart home appliances are constantly iterating and updating to meet users' ever-increasing life needs and improve their quality of life.

[0059] Among them, air conditioning is a relatively common and widely used smart home appliance, which is mainly used to provide users with a suitable environment. Air conditioning is an air conditioner, which refers to the process of using artificial means to adjust and control the temperature, humidity, cleanliness, speed and other parameters of the ambient air in a building or structure.

[0060] However, when the air conditioner is in heating state and the temperature of the environment in which the air conditioner outdoor unit is located is too low, frost is easy to form on the surface of the outdoor unit heat exchanger. In addition, heat exchanger pipeline failure, insufficient refrigerant and compressor failure can also cause frost on the outdoor unit, which will affect the air conditioner's hot and cold conversion effect.

[0061] The most common defrosting method is to stop the machine for defrosting. Stopping the machine for defrosting mainly involves changing the direction of the refrigerant flow, from heating to cooling, and delivering the high-temperature and high-pressure refrigerant output by the compressor to the frosted heat exchanger of the outdoor unit, so that the frost on the outdoor unit melts. However, the use of the method of stopping the machine for defrosting will affect the working efficiency, service life and user experience of the air conditioner.

[0062] In view of the above problems, the present application provides a defrosting method.

[0063] First, the implementation scenarios involved in this application are described.

[0064] Common air conditioners generally have two parts: indoor unit and outdoor unit. The indoor unit of the air conditioner refers to the part installed indoors, and the outdoor unit refers to the part installed outdoors. Because the compressor and condenser of the air conditioner generate heat when cooling, and the condenser needs to absorb heat when heating, the outdoor unit is generally the core of the air conditioner.

[0065] Since the outdoor unit of the air conditioner is usually installed outdoors and directly exposed to the external environment, when the external ambient temperature is high or moderate, there is no possibility of frost. However, when the external ambient temperature is low, the impact on the outdoor unit is greater and frost is likely to occur.

[0066] The smart home appliance involved in the present application may be, for example, an air conditioner for heating in winter, and the ambient temperature of the outdoor unit of the air conditioner is relatively low.

[0067] The defrosting method provided by the present application is to set an eight-way reversing valve structure on the main condenser circuit of the outdoor unit of the smart home appliance, and judge the ambient temperature of the outdoor unit; when the outdoor unit is frosted, the conduction state of the switching valve core of the eight-way reversing valve is regulated to control the high-temperature refrigerant of the smart home appliance to flow into multiple condenser branches in sequence for heating and defrosting. The method realizes the defrosting of the smart home appliance without stopping, achieves the purpose of cyclic defrosting, prolongs the service life of the smart home appliance, improves the working efficiency of defrosting, and also improves the user experience.

[0068] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0069] Figure 1 The process of the defrosting method provided in the embodiment of the present application Figure 1 The execution subject of this embodiment may be, for example, a control device of a smart home appliance. Figure 1 As shown, the defrosting method provided in this embodiment includes:

[0070] S101: Acquire the ambient temperature of the outdoor unit, and determine whether the ambient temperature is greater than a preset ambient temperature.

[0071] The ambient temperature refers to the temperature value of the space where the outdoor unit of the smart home appliance is located. The preset ambient temperature is used to indicate the lower limit temperature value of the outdoor unit of the smart home appliance at which frost occurs, for example, it may be 2°C.

[0072] The purpose of this step of judging whether the ambient temperature is greater than the preset ambient temperature is to determine whether there is frost on the outdoor unit of the smart home appliance.

[0073] It can be understood that a plurality of sensors are provided in the outdoor unit of the smart home appliance, and the temperature change and real-time temperature of the space where the outdoor unit is located can be detected by the temperature sensor provided in the outdoor unit.

[0074] By detecting the ambient temperature through the temperature sensor, the ambient temperature of the space where the outdoor unit of the smart home appliance is currently located can be determined; and the ambient temperature is compared with the preset temperature. Based on the comparison result, it can be determined whether the outdoor unit is defrosting.

[0075] If the ambient temperature is greater than the preset temperature, it indicates that there is no frost on the outdoor unit and there is no need to defrost the outdoor unit. If the ambient temperature is not greater than the preset temperature, it indicates that there is frost on the outdoor unit and there is a need to defrost the outdoor unit.

[0076] For example, a temperature sensor can be set at the heat exchanger pipeline of the smart home appliance outdoor unit to detect the temperature of the heat exchanger pipeline. If the currently acquired ambient temperature is 0℃, 10℃>5℃, it indicates that there is no frost on the heat exchanger pipeline, and no defrosting is required; if the currently acquired ambient temperature is 0℃, 0℃<5℃, it indicates that there is frost on the heat exchanger pipeline, and defrosting is required.

[0077] S102: When the ambient temperature is not greater than a preset temperature, the smart home appliance is controlled to open a high-temperature refrigerant branch, and the switching valve core of the eight-way reversing valve is controlled to switch from an initial conducting state to a first conducting state.

[0078] Among them, the high-temperature refrigerant branch is used to indicate that part of the high-temperature refrigerant used for heating will be introduced into the condenser branch, the switching valve core is used to indicate the structure that makes the high-temperature refrigerant branch and the condenser branch conductive, the initial conductive state is used to indicate that no low-temperature refrigerant flows into the passage connected by the switching valve core, and the first conductive state is used to indicate that high-temperature refrigerant flows into the passage connected by the switching valve core, and defrosting can be performed.

[0079] The eight-way reversing valve structure involved in this embodiment is provided with a condenser main line, a high-temperature refrigerant branch and six condenser branches. The six condenser branches may be, for example, condenser branch A, condenser branch B, condenser branch C, condenser branch D, condenser branch E, and condenser branch F.

[0080] When the switching valve core of the eight-way reversing valve is in the initial conduction state, the high-temperature refrigerant branch is connected to any one of the condenser branches, and neither low-temperature refrigerant nor high-temperature refrigerant flows into the currently connected branch; when the switching valve core of the eight-way reversing valve is in the first conduction state, the condenser branch connected to the high-temperature refrigerant branch is the next sequence branch of the condenser branch connected in the initial conduction state, and high-temperature refrigerant flows into the currently connected branch.

[0081] When the ambient temperature of the space where the outdoor unit is located is not greater than the preset temperature, that is, when frost occurs in the outdoor unit, the smart home appliance is first controlled to open the high-temperature refrigerant branch to introduce the high-temperature refrigerant into the passage formed when the switching valve core is in the initial state; then the switching valve core of the eight-way reversing valve is controlled to switch from the initial state to the first conductive state to form a conductive passage to facilitate the inflow of high-temperature refrigerant.

[0082] For example, the currently acquired ambient temperature is 0℃, and 0℃<5℃, which indicates that frost exists in the heat exchanger pipeline. At this time, the smart home appliance is controlled to open the high-temperature refrigerant branch, and the initial conduction state of the switching valve core of the eight-way reversing valve is switched to the first conduction state; if the initial conduction state is that the high-temperature refrigerant branch is connected to the condenser branch A, then when it is switched to the first conduction state, the high-temperature refrigerant branch is connected to the condenser branch B.

[0083] S103: Control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

[0084] The target condenser branch refers to the branch that currently introduces high-temperature refrigerant for defrosting.

[0085] When the initial conduction state of the switching valve core of the eight-way reversing valve is switched to the first conduction state, the condenser branch that is now in conduction with the high-temperature refrigerant branch is the target condenser branch. The high-temperature refrigerant is controlled to enter the target condenser branch. After the high-temperature refrigerant flows into the target condenser branch, it provides heat to the branch, so that the temperature of the current target condenser branch rises, thereby achieving a defrosting effect.

[0086] For example, if the target condenser branch is condenser branch B, it means that high-temperature refrigerant is introduced into condenser branch B. At this time, the temperature of the low-temperature refrigerant in condenser branch B is relatively low, and frost occurs in the heat exchanger pipeline. After the high-temperature refrigerant is introduced, the refrigerant temperature in condenser branch B increases, alleviating the frosting phenomenon, thereby achieving the purpose of defrosting.

[0087] The defrosting method provided by the present application is to set an eight-way reversing valve structure on the main condenser circuit of the outdoor unit of the smart home appliance, and judge the ambient temperature of the outdoor unit; when the ambient temperature is not greater than the preset temperature, control the smart home appliance to open the high-temperature refrigerant branch, and transmit the high-temperature refrigerant to the corresponding condenser branch through the switching valve core of the eight-way reversing valve, so as to heat up and defrost the outdoor unit of the smart home appliance. The method realizes the defrosting of the smart home appliance without stopping, prolongs the service life of the smart home appliance, improves the working efficiency of defrosting, and also improves the user experience.

[0088] Figure 2 The process of the defrosting method provided in the embodiment of the present application Figure 2 .like Figure 2 As shown, in this embodiment Figure 1 Based on the embodiment, the defrosting method is described in detail. This embodiment shows the defrosting method, including:

[0089] S201: Acquire the ambient temperature of the outdoor unit.

[0090] Step S201 is similar to the above step S101 and will not be described again.

[0091] S202: Determine whether the ambient temperature is greater than a preset ambient temperature; if so, execute step S201; if not, execute step S202.

[0092] The purpose of this step of judging whether the ambient temperature is greater than the preset ambient temperature is to determine whether there is frost on the outdoor unit of the smart home appliance.

[0093] The ambient temperature is detected by the temperature sensor to determine whether the outdoor unit is defrosting.

[0094] If the ambient temperature is greater than the preset temperature, it indicates that there is no frost on the outdoor unit and there is no need to defrost the outdoor unit. If the ambient temperature is not greater than the preset temperature, it indicates that there is frost on the outdoor unit and there is a need to defrost the outdoor unit.

[0095] For example, if the currently acquired ambient temperature is 0°C, 10°C>5°C, it indicates that there is no frost on the heat exchanger pipeline, and no defrosting is required at this time; if the currently acquired ambient temperature is 0°C, 0°C<5°C, it indicates that there is frost on the heat exchanger pipeline, and defrosting is required at this time.

[0096] S203: Obtaining the initial valve opening of the electronic expansion valve of the high-temperature refrigerant branch.

[0097] S204: adjusting the initial valve opening to a target valve opening, wherein the target valve opening is used to indicate that the flow rate of the high-temperature refrigerant branch is a preset flow rate.

[0098] The initial valve opening is used to indicate that the electronic expansion valve is in a closed state, so that no refrigerant flows into the high-temperature refrigerant branch.

[0099] The initial valve opening of the electronic expansion valve is detected by means of multiple sensors installed in the outdoor unit of the smart home appliance; and based on the initial valve opening, the valve opening of the electronic expansion valve is adjusted so that the flow rate of the high-temperature refrigerant flowing into the high-temperature refrigerant branch reaches a preset flow rate. At this time, the valve opening of the electronic expansion valve is the target valve opening.

[0100] For example, the initial valve opening of the electronic expansion valve can be 0pls. If the maximum valve opening of the electronic expansion valve currently in use is 500pls, the preset flow rate of high-temperature refrigerant can be obtained by adjusting the valve opening of the electronic expansion valve. If the preset flow rate is one-fourth of the total high-temperature refrigerant flow rate, the valve opening is adjusted to 125pls to obtain one-fourth of the high-temperature refrigerant.

[0101] S205: Obtain the high-temperature refrigerant temperature.

[0102] When the valve opening of the electronic expansion valve is consistent with the target valve opening, the high-temperature refrigerant begins to flow into the high-temperature refrigerant branch. At this time, the temperature of the high-temperature refrigerant is detected by a temperature sensor arranged at the high-temperature refrigerant branch to obtain the temperature value of the high-temperature refrigerant, which may be 25°C, for example.

[0103] S206: Determine whether the high-temperature refrigerant temperature is lower than a preset refrigerant temperature.

[0104] The preset refrigerant temperature is used to determine whether the introduced high-temperature refrigerant can be defrosted, for example, it may be 15°C.

[0105] The purpose of this step of judging whether the high-temperature refrigerant temperature is less than the preset refrigerant temperature is to ensure that the introduced high-temperature refrigerant can defrost the outdoor unit of the smart home appliance.

[0106] If the high-temperature refrigerant temperature is lower than the preset refrigerant temperature, it indicates that the temperature of the high-temperature refrigerant introduced by adjusting the electronic expansion valve is low, and the outdoor unit of the smart home appliance cannot be defrosted using the currently introduced high-temperature refrigerant.

[0107] If the high-temperature refrigerant temperature is not less than the preset refrigerant temperature, it indicates that the temperature of the high-temperature refrigerant introduced by adjusting the electronic expansion valve is relatively high. At this time, the outdoor unit of the smart home appliance can be defrosted using the currently introduced high-temperature refrigerant.

[0108] For example, if the currently obtained high-temperature refrigerant temperature is 25°C, 25°C>15°C, it means that the high-temperature refrigerant can provide heat for the heat exchanger pipeline, and the heat exchanger pipeline is defrosted at this time; if the currently obtained high-temperature refrigerant temperature is 10°C, 10°C<15°C, it means that the high-temperature refrigerant provides limited heat for the heat exchanger pipeline, and the heat exchanger pipeline cannot be defrosted at this time.

[0109] S207: When the high-temperature refrigerant temperature is not less than the preset refrigerant temperature, the switching valve core of the eight-way reversing valve is controlled to switch from the initial conducting state to the first conducting state.

[0110] When the high-temperature refrigerant is not less than the preset refrigerant temperature, it indicates that the high-temperature refrigerant can be introduced for defrosting. At this time, the switching valve core of the eight-way reversing valve is controlled to switch from the initial conduction state to the first conduction state.

[0111] It can be understood that when the conduction state of the switching valve core is the initial conduction state, the currently conducting path does not need to be defrosted; when the high-temperature refrigerant is lower than the preset refrigerant temperature, the conduction state of the switching valve core will not be changed until the high-temperature refrigerant is not lower than the preset refrigerant temperature, and then the conduction state of the switching valve core will be switched.

[0112] For example, if the currently obtained high-temperature refrigerant temperature is 25℃, 25℃>15℃, it means that the high-temperature refrigerant can provide heat for the heat exchanger pipeline. At this time, the condenser branch A connected to the high-temperature refrigerant branch will be switched to the next sequence branch, that is, the condenser branch B; if the currently obtained high-temperature refrigerant temperature is 10℃, 10℃<15℃, it means that the heat provided by the high-temperature refrigerant to the heat exchanger pipeline is limited and the expected defrosting effect cannot be achieved. At this time, the working state of the switching valve core is not changed, and the high-temperature refrigerant branch and the condenser branch A are kept connected.

[0113] S208: Determine a target condenser branch that is in conduction with the high-temperature refrigerant branch according to the first conduction state of the switching valve core.

[0114] S209: Control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

[0115] Among them, the target condenser branch is used to indicate the condenser branch that is connected to the high-temperature refrigerant branch when the switching valve core is in the first conduction state.

[0116] When the switching valve core is in the first conduction state, the high-temperature refrigerant is controlled to enter the target condenser branch, and the inflow of the high-temperature refrigerant causes the temperature of the target condenser branch to rise, thereby starting to defrost the outdoor unit of the smart home appliance.

[0117] For example, if the target condenser branch is condenser branch B, the high-temperature refrigerant is controlled to flow into condenser branch B, so that the refrigerant temperature in condenser branch B is increased, thereby solving the frosting phenomenon of the heat exchanger pipe.

[0118] S210: Re-obtaining the ambient temperature of the outdoor unit.

[0119] When the switching valve core is in the first conduction state and the time length of high-temperature refrigerant flowing into the target condenser branch reaches a preset time length, when the conduction state of the switching valve core is switched, the ambient temperature of the outdoor unit of the smart home appliance is reacquired.

[0120] For example, if the target condenser branch is condenser branch B, and the conduction time of the current switching valve core is 10 minutes, it means that the heat exchanger pipeline has been defrosted for 10 minutes. At this time, the ambient temperature of the outdoor unit is obtained again and the currently obtained ambient temperature is re-judged.

[0121] S211: Determine whether the new ambient temperature is greater than the preset ambient temperature; if so, execute step S212; if not, execute step S202.

[0122] The new ambient temperature is used to indicate the temperature value obtained when the smart home appliance is still in the defrosting process.

[0123] The purpose of judging whether the new ambient temperature is greater than the preset ambient temperature in this step is to determine whether defrosting is still required.

[0124] If the new ambient temperature is greater than the preset ambient temperature, it indicates that the current defrost process is effective, so that the frosting phenomenon of the outdoor unit is alleviated. At this time, no defrost process is needed. The high-temperature refrigerant branch of the smart home appliance is controlled to be closed, and the conduction state of the switching valve core is switched to the initial conduction state, and the defrost process is exited.

[0125] If the new ambient temperature is not greater than the preset ambient temperature, it indicates that frost still exists in the outdoor unit and defrosting is still required. The high-temperature refrigerant temperature is obtained again, and it is determined again whether the current high-temperature refrigerant can be used for defrosting, thereby ensuring the defrosting effect.

[0126] For example, if the new ambient temperature currently obtained is 10℃, 10℃>2℃, it indicates that the current defrosting effect is significant, the ambient temperature of the space where the heat exchanger pipeline is located rises, and the ideal defrosting effect is achieved. At this time, the electronic expansion valve is controlled to close and the defrosting process is exited; if the new ambient temperature currently obtained is 1℃, 1℃<2℃, it indicates that the current defrosting effect is not obvious, the frosting phenomenon is alleviated, but frosting still exists, and the current defrosting process needs to be kept running until the ambient temperature of the space where the heat exchanger pipeline is located reaches the preset temperature, that is, there is no frost phenomenon on the heat exchanger pipeline.

[0127] Specifically, the high-temperature refrigerant is controlled to enter the first condenser branch; at a preset time interval, the switching valve core is repeatedly controlled to switch from the first conduction state to the second conduction state, and the high-temperature refrigerant is repeatedly controlled to enter the second condenser branch corresponding to the second conduction state until the defrost process is completed.

[0128] Among them, the preset duration is used to indicate the time interval for switching the conduction state of the switching valve core, and the second conduction state is used to indicate that the currently conducted condenser branch is the next sequential branch of the previously conducted condensation branch.

[0129] It can be understood that the first conduction state is associated with the second conduction state. The condenser branch currently undergoing defrosting can be used as the first conduction state. The second conduction state is relative to the first conduction state. The conduction state is switched by switching the valve core. The conduction state after switching is the second conduction state, that is, there is a sequence of execution. The first condenser branch is associated with the second condenser branch. The first condenser branch is the condenser branch corresponding to the conduction state of the switching valve core when the conduction state is the first conduction state, and the second condenser branch is the condenser branch corresponding to the conduction state of the switching valve core when the conduction state is the second conduction state. There is a sequence between the two.

[0130] During the defrost process, if the conditions for exiting the defrost process are not met, the switching valve core is controlled to switch its conduction state according to the preset time, and multiple condenser branches are used to circulate the defrost process until the defrost process is completed.

[0131] For example, the first condenser branch is condenser branch B, and the second condenser branch is condenser branch C. When the outdoor unit is in the first conduction state, condenser branch B is connected to the high-temperature refrigerant branch, and the inflowing high-temperature refrigerant is used to defrost condenser branch B for 10 minutes; after 10 minutes, the switching valve core is switched from the first conduction state to the second conduction state, so that condenser branch C is connected to the high-temperature refrigerant branch, and the inflowing high-temperature refrigerant is used to defrost condenser branch B for 10 minutes; if the conditions for exiting the defrost process are met when switching the conduction state, the conduction state of the switching valve core is controlled to switch to the initial conduction state, and the defrost process is exited; if the ambient temperature obtained at this time does not meet the conditions for exiting the defrost process, the defrost process continues, then the current first condenser branch should be condenser branch C, and the second condenser branch should be condenser branch D, and the condenser branches are defrosted in turn.

[0132] S212: Control the high-temperature refrigerant branch of the smart home appliance to close, and switch the conduction state of the switching valve core to the initial conduction state.

[0133] The defrosting method provided in this embodiment is to set an eight-way reversing valve structure on the main condenser circuit of the outdoor unit of the smart home appliance, and judge the ambient temperature of the outdoor unit; when the ambient temperature is not greater than the preset temperature, control the smart home appliance to open the high-temperature refrigerant branch, and transmit the high-temperature refrigerant to the corresponding condenser branch through the switching valve core of the eight-way reversing valve, so as to heat up and defrost the outdoor unit of the smart home appliance; after defrosting, change the conduction state of the switching valve core in turn according to the preset time interval, so that the high-temperature refrigerant flows into other condenser branches in turn for defrosting, until the ambient temperature of the outdoor unit is greater than the preset environment, and the defrosting process is completed. This method realizes the defrosting process of the smart home appliance without stopping, achieves the purpose of cyclic defrosting, prolongs the service life of the smart home appliance, improves the working efficiency of defrosting, and also improves the user experience.

[0134] Figure 3 This is a schematic diagram of the structure of the defrosting device provided in this application. Figure 3 As shown, the present application provides a defrost processing device, and the defrost processing device 300 includes:

[0135] The acquisition module 301 is used to acquire the ambient temperature of the outdoor unit.

[0136] The judgment module 302 is used to judge whether the ambient temperature is greater than a preset ambient temperature.

[0137] The processing module 303 is used to control the smart home appliance to open the high-temperature refrigerant branch when the ambient temperature is not greater than the preset temperature, and control the switching valve core of the eight-way reversing valve to switch from the initial conduction state to the first conduction state, and the conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and multiple condenser branches.

[0138] The processing module 303 is also used to control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

[0139] Optionally, the acquisition module 301 is also used to obtain the temperature of the high-temperature refrigerant.

[0140] The determination module 302 is further configured to determine whether the high-temperature refrigerant temperature is lower than a preset refrigerant temperature.

[0141] The processing module 303 is further configured to control the switching valve core of the eight-way reversing valve to switch from an initial conducting state to a first conducting state when the temperature of the high-temperature refrigerant is not less than the preset refrigerant temperature.

[0142] Optionally, the defrost processing device further includes: a determination module 304.

[0143] The determination module 304 is used to determine the target condenser branch that is in conduction with the high-temperature refrigerant branch according to the first conduction state of the switching valve core.

[0144] Optionally, the acquisition module 301 is specifically used to acquire the initial valve opening of the electronic expansion valve of the high-temperature refrigerant branch.

[0145] The processing module 303 is further used to adjust the initial valve opening to a target valve opening, and the target valve opening is used to indicate that the flow rate of the high-temperature refrigerant branch is a preset flow rate.

[0146] Optionally, the processing module 303 is specifically used to control the high-temperature refrigerant to enter the first condenser branch.

[0147] The processing module 303 is specifically used to repeatedly control the switching valve core to switch from the first conduction state to the second conduction state at intervals of a preset time, and repeatedly control the high-temperature refrigerant to enter the second condenser branch corresponding to the second conduction state until the defrosting process is completed.

[0148] Optionally, the acquisition module 301 is further used to re-acquire the ambient temperature of the outdoor unit.

[0149] The judging module 302 is further configured to judge whether the new ambient temperature is greater than the preset ambient temperature.

[0150] The processing module 303 is further used to control the high-temperature refrigerant branch of the smart home appliance to close when the new ambient temperature is greater than the preset ambient temperature, and to switch the conduction state of the switching valve core to an initial conduction state.

[0151] Figure 4 This is a schematic diagram of the structure of the defrosting equipment provided in this application. Figure 4 As shown, the present application provides a defrost processing device, and the defrost processing device 400 includes: a receiver 401, a transmitter 402, a processor 403 and a memory 404.

[0152] Receiver 401, used for receiving instructions and data;

[0153] A transmitter 402, used for sending instructions and data;

[0154] Memory 404, for storing computer-executable instructions;

[0155] The processor 403 is used to execute the computer-executable instructions stored in the memory 404 to implement the various steps performed by the defrosting method in the above embodiment. For details, please refer to the relevant description in the above embodiment of the defrosting method.

[0156] Optionally, the memory 404 may be independent or integrated with the processor 403 .

[0157] When the memory 404 is independently provided, the electronic device further includes a bus for connecting the memory 404 and the processor 403 .

[0158] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the defrost processing method performed by the above-mentioned defrost processing device is implemented.

[0159] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0160] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A defrosting method, characterized in that: Applied to smart home appliances, an eight-way reversing valve is provided on the main circuit of the condenser of the outdoor unit of the smart home appliance, and the method comprises: Obtaining the ambient temperature of the outdoor unit, and determining whether the ambient temperature is greater than a preset ambient temperature; When the ambient temperature is not greater than the preset temperature, the smart home appliance is controlled to open the high-temperature refrigerant branch, and the switching valve core of the eight-way reversing valve is controlled to switch from the initial conduction state to the first conduction state, and the conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and the multiple condenser branches; Control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

2. The method according to claim 1, characterized in that The control of switching the switching valve core of the eight-way reversing valve from the initial conducting state to the first conducting state includes: Obtaining a high-temperature refrigerant temperature, and determining whether the high-temperature refrigerant temperature is less than a preset refrigerant temperature; When the high-temperature refrigerant temperature is not less than the preset refrigerant temperature, the switching valve core of the eight-way reversing valve is controlled to switch from the initial conducting state to the first conducting state.

3. The method according to claim 2, characterized in that The controlling high-temperature refrigerant to enter the target condenser branch includes: Determining the target condenser branch that is in conduction with the high-temperature refrigerant branch according to the first conduction state of the switching valve core; Control the high-temperature refrigerant to enter the target condenser branch.

4. The method according to claim 1, characterized in that: The controlling the smart home appliance to open a high-temperature refrigerant branch includes: Obtaining an initial valve opening of the electronic expansion valve of the high-temperature refrigerant branch; The initial valve opening is adjusted to a target valve opening, and the target valve opening is used to indicate that the flow rate of the high-temperature refrigerant branch is a preset flow rate.

5. The method according to claim 3, characterized in that: The target condenser branch is a first condenser branch, and controlling the high-temperature refrigerant to enter the target condenser branch includes: Controlling the high-temperature refrigerant to enter the first condenser branch; At preset time intervals, the switching valve core is repeatedly controlled to switch from the first conduction state to the second conduction state, and the high-temperature refrigerant is repeatedly controlled to enter the second condenser branch corresponding to the second conduction state until the defrosting process is completed.

6. The method according to claim 5, characterized in that After controlling the high-temperature refrigerant to enter the target condenser branch, the method further includes: Re-acquiring the ambient temperature of the outdoor unit, and determining whether the new ambient temperature is greater than the preset ambient temperature; When the new ambient temperature is greater than the preset ambient temperature, the high-temperature refrigerant branch of the smart home appliance is controlled to be closed, and the conduction state of the switching valve core is switched to the initial conduction state.

7. A defrosting device, characterized in that: include: An acquisition module is used to obtain the ambient temperature of the outdoor unit; A judging module, used to judge whether the ambient temperature is greater than a preset ambient temperature; A processing module, used for controlling the smart home appliance to open the high-temperature refrigerant branch when the ambient temperature is not greater than a preset temperature, and controlling the switching valve core of the eight-way reversing valve to switch from an initial conduction state to a first conduction state, wherein the conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and the plurality of condenser branches; The processing module is also used to control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance.

8. The device according to claim 7, characterized in that The acquisition module is also used to obtain the temperature of the high-temperature refrigerant; The judging module is further used to judge whether the high-temperature refrigerant temperature is lower than a preset refrigerant temperature; The processing module is also used to control the switching valve core of the eight-way reversing valve to switch from an initial conducting state to a first conducting state when the temperature of the high-temperature refrigerant is not less than the preset refrigerant temperature.

9. A defrosting treatment device, characterized in that: include: Memory; processor; Wherein, the memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the defrost processing method according to any one of claims 1 to 7.

10. A computer storage medium, characterized in that: The computer storage medium stores computer executable instructions, and when the computer executable instructions are executed by a processor, they are used to implement the defrosting processing method according to any one of claims 1 to 7.

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