Defrosting method, apparatus, device, and computer storage medium

Abstract

The application belongs to the technical field of intelligent household appliances, and particularly relates to a defrosting treatment method, device, equipment and computer storage medium. The method is realized by setting an eight-way reversing valve structure on a condenser main line of an outdoor unit of an intelligent household appliance, and judging the ambient temperature of the outdoor unit; when the ambient temperature is not greater than a preset temperature, the intelligent household appliance is controlled to start a high-temperature refrigerant branch, and the high-temperature refrigerant is transmitted to a corresponding condenser branch through a switching valve core of the eight-way reversing valve, so that the outdoor unit of the intelligent household appliance is warmed up for defrosting. The method realizes defrosting treatment of the intelligent household appliance without shutdown, improves the service life of the intelligent household appliance, improves the working efficiency of defrosting, and improves the experience of users.

Description

Technical Field

[0001] This application belongs to the field of smart home appliance technology, specifically relating to a defrosting method, apparatus, device, and computer storage medium. Background Technology

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

[0003] Air conditioning is a common and widely used smart home appliance. Air conditioning, or air conditioner, refers to the process of artificially adjusting and controlling parameters such as temperature, humidity, cleanliness, and air velocity within a building or structure.

[0004] However, when the air conditioner is in heating mode and the ambient temperature of the outdoor unit is too low, frost easily forms on the surface of the outdoor unit's heat exchanger. This frost can affect the air conditioner's cooling and heating efficiency. The most common defrosting method is to stop the unit, but this method can negatively impact the air conditioner's operating efficiency and the user experience. Summary of the Invention

[0005] This application provides a defrosting method, apparatus, device, and computer storage medium to solve the problem that defrosting during air conditioner shutdown affects air conditioner capacity and user experience.

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

[0007] The ambient temperature of the outdoor unit is obtained, and it is determined 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. The conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and multiple condenser branches.

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

[0010] Optionally, the switching valve core of the eight-way directional valve is switched from an initial conducting state to a first conducting state, including:

[0011] Obtain the temperature of the high-temperature refrigerant and determine whether the temperature of the high-temperature refrigerant is lower than the 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 conduction state to the first conduction state.

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

[0014] Based on the first conduction state of the switching valve core, the target condenser branch that is connected to the high-temperature refrigerant branch is determined;

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

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

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

[0018] The initial valve opening is adjusted to the target valve opening, which is used to indicate that the flow rate of the high-temperature refrigerant branch is the 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] Control the high-temperature refrigerant to enter the first condenser branch;

[0021] At preset intervals, the switching valve core is repeatedly controlled to switch from the first conducting state to the second conducting state, and the high-temperature refrigerant is repeatedly controlled to enter the second condenser branch corresponding to the second conducting 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] The ambient temperature of the outdoor unit is reacquired, and it is determined 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 shut off, and the conduction state of the switching valve core is switched to the initial conduction state.

[0025] Secondly, this application provides a defrosting device, comprising:

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

[0027] The judgment module is used to determine whether the ambient temperature is greater than the 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 to control the switching valve core of the eight-way reversing valve to switch from the initial conduction state to the first conduction state. 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 in order to defrost the outdoor unit of the smart home appliance.

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

[0031] The judgment module is also used to determine whether the temperature of the high-temperature refrigerant is lower than the 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 the initial conduction state to the first conduction state when the high-temperature refrigerant temperature is not less than the preset refrigerant temperature.

[0033] Optionally, the defrosting device further includes a determining module.

[0034] The determining module is used to determine the target condenser branch that is connected to the high-temperature refrigerant branch based on the first conduction state of the switching valve core.

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

[0036] The processing module is further configured to adjust 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.

[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 conducting state to the second conducting state at preset time intervals, and to repeatedly control the high-temperature refrigerant to enter the second condenser branch corresponding to the second conducting state, until the defrosting process is completed.

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

[0040] The judgment module is also used to determine 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 the initial conduction state.

[0042] Thirdly, this application provides a defrosting device, comprising:

[0043] Memory;

[0044] processor;

[0045] The memory stores computer-executed instructions;

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

[0047] Fourthly, this application provides a computer storage medium storing computer execution instructions thereon, which are executed by a processor to implement the defrosting method as described in the first aspect and various possible implementations of the first aspect.

[0048] The defrosting method provided in this application utilizes an eight-way reversing valve structure installed on the condenser main circuit of the outdoor unit of a smart home appliance, and judges the ambient temperature of the outdoor unit. When the ambient temperature is not higher than a preset temperature, the smart home appliance is controlled to open the high-temperature refrigerant branch, and the high-temperature refrigerant is transferred to the corresponding condenser branch through the switching valve core of the eight-way reversing valve, thereby heating up the outdoor unit of the smart home appliance for defrosting. This method enables the smart home appliance to defrost without stopping, improving its service life, defrosting efficiency, and user experience. Attached Figure Description

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

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

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

[0052] Figure 3 This is a schematic diagram of the defrosting device provided in this application;

[0053] Figure 4 This is a structural schematic diagram of the defrosting equipment provided in this application.

[0054] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

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

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

[0059] Air conditioning is a common and widely used smart home appliance, primarily used to provide users with a suitable environment. Air conditioning, or air conditioner, refers to the process of artificially adjusting and controlling parameters such as temperature, humidity, cleanliness, and air velocity within a building or structure.

[0060] However, when the air conditioner is in heating mode and the ambient temperature of the outdoor unit is too low, the surface of the outdoor unit's heat exchanger is prone to frost. In addition, heat exchanger pipe failure, insufficient refrigerant, and compressor failure can also cause frost to form on the outdoor unit, which will affect the air conditioner's cooling and heating conversion efficiency.

[0061] The most common defrosting method is to shut down the air conditioner for defrosting. This method mainly involves changing the flow of refrigerant from heating to cooling, delivering the high-temperature, high-pressure refrigerant output from the compressor to the heat exchanger where frost has formed on the outdoor unit, thus melting the frost layer. However, using the shutdown defrosting method can affect the air conditioner's operating efficiency, lifespan, and user experience.

[0062] To address the above problems, this application provides a defrosting method.

[0063] First, the implementation scenarios involved in this application will be explained.

[0064] A typical air conditioner consists of two parts: an indoor unit and an outdoor unit. The indoor unit is the part installed indoors, while the outdoor unit is the part installed outdoors. Because the compressor and condenser generate heat when cooling, and conversely, the condenser absorbs heat when heating, the outdoor unit is generally the core of the air conditioner.

[0065] Since the outdoor unit of an air conditioner is usually installed outdoors and directly exposed to the outside environment, there is no possibility of frost when the outside temperature is high or moderate. However, when the outside temperature is low, it has a greater impact on the outdoor unit and is prone to frost formation.

[0066] The smart home appliances involved in this application can be, for example, air conditioners that provide heating in winter, and the outdoor unit of the air conditioner is located in an environment with a low temperature.

[0067] The defrosting method provided in this application utilizes an eight-way reversing valve structure installed on the main condenser circuit of the outdoor unit of a smart home appliance, and judges the ambient temperature of the outdoor unit. When frost forms on the outdoor unit, the conduction state of the switching valve core of the eight-way reversing valve is adjusted to control the high-temperature refrigerant of the smart home appliance to flow sequentially into multiple condenser branches for defrosting. This method enables the smart home appliance to defrost without stopping, achieving the purpose of cyclic defrosting, improving the service life of the smart home appliance, increasing defrosting efficiency, and enhancing the user experience.

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

[0069] Figure 1 The process flow of the defrosting method provided in the embodiments of this application Figure 1 The executing entity in this embodiment can be, for example, a control device for a smart home appliance. Figure 1 As shown, the defrosting method provided in this embodiment includes:

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

[0071] Among them, 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 at which the outdoor unit of the smart home appliance will frost. For example, it can be 2℃.

[0072] The purpose of this step, which checks whether the ambient temperature is higher than the preset ambient temperature, is to determine whether there is frost buildup on the outdoor unit of the smart home appliance.

[0073] Understandably, smart home appliances have multiple sensors installed in their outdoor units. These sensors can detect temperature changes and real-time temperatures in the space where the outdoor unit is located.

[0074] By detecting the ambient temperature using a temperature sensor, the ambient temperature of the space where the outdoor unit of the smart home appliance is located can be determined. By comparing the ambient temperature with the preset temperature, it can be determined whether the outdoor unit needs to defrost.

[0075] If the ambient temperature is higher than the preset temperature, it indicates that there is no frost on the outdoor unit, and defrosting is not required. If the ambient temperature is not higher than the preset temperature, it indicates that there is frost on the outdoor unit, and defrosting is required.

[0076] For example, a temperature sensor can be installed on the heat exchanger pipes of the outdoor unit of a smart home appliance to detect the temperature of the heat exchanger pipes. If the current ambient temperature is 0℃ and 10℃ > 5℃, it indicates that there is no frost on the heat exchanger pipes, and defrosting is not required. If the current ambient temperature is 0℃ and 0℃ < 5℃, it indicates that there is frost on the heat exchanger pipes, and defrosting is required.

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

[0078] Among them, the high-temperature refrigerant branch is used to indicate that a portion of the high-temperature refrigerant used for heating is introduced into the condenser branch; the switching valve core is used to indicate the structure that connects the high-temperature refrigerant branch and the condenser branch; the initial connection state is used to indicate that no low-temperature refrigerant flows into the passage connected by the switching valve core; and the first connection 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 has one condenser main circuit, one high-temperature refrigerant branch circuit, and six condenser branches. These six condenser branches can be, for example, condenser branch circuit A, condenser branch circuit B, condenser branch circuit C, condenser branch circuit D, condenser branch circuit E, and condenser branch circuit F.

[0080] When the switching valve core of the eight-way reversing valve is in the initial conducting state, the high-temperature refrigerant branch is connected to any condenser branch, and there is no low-temperature refrigerant flowing into the currently connected branch, nor is there any high-temperature refrigerant flowing into it; when the switching valve core of the eight-way reversing valve is in the first conducting state, the condenser branch connected to the high-temperature refrigerant branch is the next sequential branch of the condenser branch connected in the initial conducting state, and there is high-temperature refrigerant flowing into the currently connected branch.

[0081] When the ambient temperature of the space where the outdoor unit is located is not higher than the preset temperature, i.e. when the outdoor unit is frosted, the smart home appliance is first controlled to open the high-temperature refrigerant branch, introducing 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 conducting state, forming a conducting passage to facilitate the inflow of high-temperature refrigerant.

[0082] For example, if the current ambient temperature is 0℃ and 0℃ < 5℃, it indicates that there is frost on the heat exchanger pipes. At this time, the smart home appliance is controlled to open the high-temperature refrigerant branch and switch the initial conduction state of the eight-way reversing valve core to the first conduction state. If the initial conduction state is that the high-temperature refrigerant branch and the condenser branch A are connected, then when switching to the first conduction state, the high-temperature refrigerant branch and the condenser branch B are connected.

[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 switches to the first conduction state, the condenser branch connected to the high-temperature refrigerant branch at this time is the target condenser branch. Controlling the high-temperature refrigerant to enter the target condenser branch, the high-temperature refrigerant provides heat to this branch, causing the temperature of the current target condenser branch to rise, thereby achieving the 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 low-temperature refrigerant in condenser branch B is at a low temperature, which causes frost to form on the heat exchanger pipes. After the high-temperature refrigerant is introduced, the temperature of the refrigerant in condenser branch B increases, which alleviates the frost phenomenon and achieves the purpose of defrosting.

[0087] The defrosting method provided in this application utilizes an eight-way reversing valve structure installed on the condenser main circuit of the outdoor unit of a smart home appliance, and judges the ambient temperature of the outdoor unit. When the ambient temperature is not higher than a preset temperature, the smart home appliance is controlled to open the high-temperature refrigerant branch, and the high-temperature refrigerant is transferred to the corresponding condenser branch through the switching valve core of the eight-way reversing valve, thereby heating up the outdoor unit of the smart home appliance for defrosting. This method enables the smart home appliance to defrost without stopping, improving its service life, defrosting efficiency, and user experience.

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

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

[0090] Step S201 is similar to step S101 above, and will not be repeated here.

[0091] S202: Determine whether the ambient temperature is greater than the preset ambient temperature; if yes, proceed to step S201; if no, proceed to step S202.

[0092] The purpose of this step, which checks whether the ambient temperature is higher than the preset ambient temperature, is to determine whether there is frost buildup on the outdoor unit of the smart home appliance.

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

[0094] If the ambient temperature is higher than the preset temperature, it indicates that there is no frost on the outdoor unit, and defrosting is not required. If the ambient temperature is not higher than the preset temperature, it indicates that there is frost on the outdoor unit, and defrosting is required.

[0095] For example, if the current ambient temperature is 0℃ and 10℃ > 5℃, it indicates that there is no frost on the heat exchanger pipes, and defrosting is not required. If the current ambient temperature is 0℃ and 0℃ < 5℃, it indicates that there is frost on the heat exchanger pipes, and defrosting is required.

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

[0097] S204: Adjust the initial valve opening to the 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 the 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 multiple sensors installed in the outdoor unit of the smart home appliance. Based on the initial valve opening, the valve opening of the electronic expansion valve is adjusted so that the flow rate of high-temperature refrigerant in the high-temperature refrigerant branch reaches the 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 0 pls. If the maximum valve opening of the currently used electronic expansion valve is 500 pls, 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-quarter of the total high-temperature refrigerant flow rate, the valve opening is adjusted to 125 pls to obtain one-quarter of the high-temperature refrigerant.

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

[0102] When the opening degree of the electronic expansion valve is consistent with the target valve opening degree, 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 the temperature sensor set at the high-temperature refrigerant branch, and the temperature value of the high-temperature refrigerant is obtained. This temperature value can be, for example, 25°C.

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

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

[0105] The purpose of this step, which determines whether the high-temperature refrigerant temperature is lower 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 temperature of the high-temperature refrigerant is lower than the preset refrigerant temperature, it indicates that the temperature of the high-temperature refrigerant introduced through the electronic expansion valve is too low, and the high-temperature refrigerant introduced at this time cannot be used to defrost the outdoor unit of the smart home appliance.

[0107] If the temperature of the high-temperature refrigerant is not lower 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 high-temperature refrigerant introduced can be used to defrost the outdoor unit of the smart home appliance.

[0108] For example, if the current high-temperature refrigerant temperature is 25℃, which is greater than 15℃, it indicates that the high-temperature refrigerant can provide heat to the heat exchanger pipes, and the heat exchanger pipes should be defrosted in this case. If the current high-temperature refrigerant temperature is 10℃, which is less than 15℃, it indicates that the high-temperature refrigerant provides limited heat to the heat exchanger pipes, and the heat exchanger pipes cannot be defrosted in this case.

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

[0110] When the high-temperature refrigerant temperature is not lower 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 switched from the initial conduction state to the first conduction state.

[0111] Understandably, when the switching valve core is in the initial conducting state, the currently conducting path does not need to be defrosted; when the high-temperature refrigerant is lower than the preset refrigerant temperature, the conducting state of the switching valve core is not changed until the high-temperature refrigerant is not lower than the preset refrigerant temperature, at which point the conducting state of the switching valve core is switched.

[0112] For example, if the current high-temperature refrigerant temperature is 25℃, and 25℃ > 15℃, it indicates that the high-temperature refrigerant can provide heat to the heat exchanger pipes. In this case, the condenser branch A, which is connected to the high-temperature refrigerant branch, is switched to the next sequential branch, namely condenser branch B. If the current high-temperature refrigerant temperature is 10℃, and 10℃ < 15℃, it indicates that the high-temperature refrigerant provides limited heat to the heat exchanger pipes and cannot achieve the desired defrosting effect. In this case, the working state of the switching valve core is not changed, and the high-temperature refrigerant branch is kept connected to the condenser branch A.

[0113] S208: Based on the first conduction state of the switching valve core, determine the target condenser branch that is connected to the high-temperature refrigerant branch.

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

[0115] 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 conducting state.

[0116] When the switching valve core is in the first conducting state, it controls the high-temperature refrigerant 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 the defrosting process for the outdoor unit of the smart home appliance.

[0117] For example, if the target condenser branch is condenser branch B, then the high-temperature refrigerant is controlled to flow into condenser branch B, thereby increasing the temperature of the refrigerant in condenser branch B and solving the frosting phenomenon in the heat exchanger pipes.

[0118] S210: Reacquire the ambient temperature of the outdoor unit.

[0119] After the switching valve core is in the first conducting state and the time for the high-temperature refrigerant to flow into the target condenser branch reaches the preset time, the ambient temperature of the outdoor unit of the smart home appliance is reacquired when the conducting state of the switching valve core is switched.

[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 indicates that the heat exchanger pipeline has been defrosted for 10 minutes. At this time, the ambient temperature of the outdoor unit is re-acquired, and the current ambient temperature is re-evaluated.

[0121] S211: Determine whether the new ambient temperature is greater than the preset ambient temperature; if yes, proceed to step S212; if no, proceed to step S202.

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

[0123] The purpose of this step, which determines whether the new ambient temperature is higher than the preset ambient temperature, is to determine whether defrosting is still necessary.

[0124] If the new ambient temperature is higher than the preset ambient temperature, it indicates that the current defrosting process is effective, which alleviates the frost phenomenon on the outdoor unit. At this time, defrosting is no longer required. The high-temperature refrigerant branch of the smart home appliance is then closed, and the switching valve core is switched to the initial open state, thus exiting the defrosting process.

[0125] If the new ambient temperature is not higher than the preset ambient temperature, it indicates that the outdoor unit still has frost. In this case, defrosting is still required. The high-temperature refrigerant temperature is then obtained again, and it is determined whether the current high-temperature refrigerant can be used for defrosting, so as to ensure the defrosting effect.

[0126] For example, if the current ambient temperature is 10℃, and 10℃ > 2℃, it indicates that the defrosting effect is significant, and the ambient temperature of the space where the heat exchanger pipes are located has risen, achieving the ideal defrosting effect. At this time, the electronic expansion valve is closed, and the defrosting process is terminated. If the current ambient temperature is 1℃, and 1℃ < 2℃, it indicates that the current defrosting effect is not obvious, and the frosting phenomenon has been alleviated, but frosting still exists. It is necessary to keep the current defrosting process running until the ambient temperature of the space where the heat exchanger pipes are located reaches the preset temperature, that is, there is no frosting phenomenon at the heat exchanger pipes.

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

[0128] 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 condenser branch.

[0129] Understandably, the first and second conduction states are related. Any condenser branch currently undergoing defrosting can be considered in the first conduction state. The second conduction state is relative to the first; it is determined by switching the conduction state using a switching valve. The second conduction state is the one that is switched to the first conduction state, meaning there is a sequential execution order. The first condenser branch is the condenser branch corresponding to the first conduction state when the switching valve is in that state, and the second condenser branch is the condenser branch corresponding to the second conduction state when the switching valve is in that state. There is a sequential order between the two.

[0130] If the conditions for exiting defrosting are not met during the defrosting process, the control switching valve core switches its conduction state according to a preset time, using multiple condenser branches to cycle through the defrosting process until the current defrosting 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 conducting state, condenser branch B is connected to the high-temperature refrigerant branch, and the flowing 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 conducting state to the second conducting state, so that condenser branch C is connected to the high-temperature refrigerant branch, and the flowing high-temperature refrigerant is used to defrost condenser branch B for 10 minutes. If the conditions for exiting the defrosting process are met when switching the conducting state, the conducting state of the switching valve core is switched back to the initial conducting state, and the defrosting process is exited. If the ambient temperature obtained at this time does not meet the conditions for exiting the defrosting process, the defrosting process continues. In this case, 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 sequentially.

[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 utilizes an eight-way reversing valve structure installed on the condenser main circuit of the outdoor unit of a smart home appliance, and judges the ambient temperature of the outdoor unit. When the ambient temperature is not higher than a preset temperature, the smart home appliance is controlled to open the high-temperature refrigerant branch, and the high-temperature refrigerant is transferred to the corresponding condenser branch through the switching valve core of the eight-way reversing valve, thus heating up the outdoor unit of the smart home appliance for defrosting. After defrosting, the conduction state of the switching valve core is changed sequentially at preset time intervals, allowing the high-temperature refrigerant to flow into other condenser branches for defrosting until the ambient temperature of the outdoor unit is higher than the preset ambient temperature, completing the defrosting process. This method enables the smart home appliance to defrost without stopping, achieving the purpose of cyclic defrosting, improving the service life of the smart home appliance, increasing defrosting efficiency, and enhancing the user experience.

[0134] Figure 3 This is a schematic diagram of the defrosting device provided in this application. Figure 3 As shown, this application provides a defrosting device 300, which 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 determine whether the ambient temperature is greater than the 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 to control the switching valve core of the eight-way reversing valve to switch from the initial conduction state to the first conduction state. 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 in order to defrost the outdoor unit of the smart home appliance.

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

[0140] The judgment module 302 is also used to determine whether the temperature of the high-temperature refrigerant is lower than the 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 the initial conduction state to the first conduction state when the high-temperature refrigerant temperature is not less than the preset refrigerant temperature.

[0142] Optionally, the defrosting device further includes a determining module 304.

[0143] The determining module 304 is used to determine the target condenser branch that is connected to the high-temperature refrigerant branch based on 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 configured to adjust 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.

[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 conducting state to the second conducting state at preset intervals, and to repeatedly control the high-temperature refrigerant to enter the second condenser branch corresponding to the second conducting state, until the defrosting process is completed.

[0148] Optionally, the acquisition module 301 is also used to reacquire the ambient temperature of the outdoor unit.

[0149] The judgment module 302 is also used to determine whether the new ambient temperature is greater than the preset ambient temperature.

[0150] The processing module 303 is further configured to, when the new ambient temperature is greater than the preset ambient temperature, 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.

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

[0152] Receiver 401 is used to receive instructions and data;

[0153] Transmitter 402 is used to send commands and data;

[0154] Memory 404 is used to store instructions executed by the computer;

[0155] The processor 403 is used to execute computer execution instructions stored in the memory 404 to implement the various steps of the defrosting method in the above embodiments. For details, please refer to the relevant descriptions in the foregoing embodiments of the defrosting method.

[0156] Optionally, the memory 404 can be either standalone or integrated with the processor 403.

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

[0158] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the defrosting method performed by the defrosting device described above.

[0159] It will be understood by those skilled in the art that all or some of the steps, systems, or apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between 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 collaboratively by several physical components. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media 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 technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0160] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A defrosting method, characterized in that, Applied to smart home appliances, the outdoor unit of the smart home appliance is equipped with an eight-way reversing valve on the condenser main circuit, and the method includes: The ambient temperature of the outdoor unit is obtained, and it is determined whether the ambient temperature is greater than the 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. The conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and multiple condenser branches. Control the high-temperature refrigerant to enter the target condenser branch to defrost the outdoor unit of the smart home appliance; The control of the switching valve core of the eight-way directional valve to switch from the initial conducting state to the first conducting state includes: Obtain the temperature of the high-temperature refrigerant and determine whether the temperature of the high-temperature refrigerant is lower than the 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 conduction state to the first conduction state.

2. The method according to claim 1, characterized in that, The control of the high-temperature refrigerant entering the target condenser branch includes: Based on the first conduction state of the switching valve core, the target condenser branch that is connected to the high-temperature refrigerant branch is determined; Control the high-temperature refrigerant to enter the target condenser branch.

3. The method according to claim 1, characterized in that, The control of the smart home appliance to activate the high-temperature refrigerant branch includes: Obtain the initial valve opening of the electronic expansion valve in the high-temperature refrigerant branch; The initial valve opening is adjusted to the target valve opening, which is used to indicate that the flow rate of the high-temperature refrigerant branch is the preset flow rate.

4. The method according to claim 2, characterized in that, The target condenser branch is the first condenser branch, and controlling the high-temperature refrigerant to enter the target condenser branch includes: Control the high-temperature refrigerant to enter the first condenser branch; At preset intervals, the switching valve core is repeatedly controlled to switch from the first conducting state to the second conducting state, and the high-temperature refrigerant is repeatedly controlled to enter the second condenser branch corresponding to the second conducting state until the defrosting process is completed.

5. The method according to claim 4, characterized in that, After controlling the high-temperature refrigerant to enter the target condenser branch, the method further includes: Reacquire the ambient temperature of the outdoor unit and determine 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 shut off, and the conduction state of the switching valve core is switched to the initial conduction state.

6. A defrosting device, characterized in that, include: The acquisition module is used to acquire the ambient temperature of the outdoor unit; The judgment module is used to determine whether the ambient temperature is greater than the preset ambient temperature; 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 to control the switching valve core of the eight-way reversing valve to switch from the initial conduction state to the first conduction state. The conduction state is used to indicate the conduction status of the high-temperature refrigerant branch and multiple condenser branches. The processing module is also used to control the high-temperature refrigerant to enter the target condenser branch in order to defrost the outdoor unit of the smart home appliance. The control of the switching valve core of the eight-way directional valve to switch from the initial conducting state to the first conducting state includes: The acquisition module is also used to acquire the temperature of the high-temperature refrigerant; The judgment module is also used to determine whether the temperature of the high-temperature refrigerant is lower than the preset refrigerant temperature; The processing module is also used to control the switching valve core of the eight-way reversing valve to switch from the initial conduction state to the first conduction state when the high-temperature refrigerant temperature is not less than the preset refrigerant temperature.

7. A defrosting device, characterized in that, include: Memory; processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the defrosting method as described in any one of claims 1-5.

8. A computer storage medium, characterized in that, The computer storage medium stores computer execution instructions, which, when executed by a processor, are used to implement the defrosting method as described in any one of claims 1-5.

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