WO2023246147A1 - 空调冷媒回收方法、装置、空调、介质及程序产品 - Google Patents
空调冷媒回收方法、装置、空调、介质及程序产品 Download PDFInfo
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- WO2023246147A1 WO2023246147A1 PCT/CN2023/077980 CN2023077980W WO2023246147A1 WO 2023246147 A1 WO2023246147 A1 WO 2023246147A1 CN 2023077980 W CN2023077980 W CN 2023077980W WO 2023246147 A1 WO2023246147 A1 WO 2023246147A1
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- Prior art keywords
- temperature
- air conditioner
- expansion valve
- refrigerant
- control
- Prior art date
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 148
- 238000011084 recovery Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000004590 computer program Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
Definitions
- This application belongs to the technical field of household appliances, and specifically relates to an air conditioning refrigerant recovery method, device, air conditioning, media and program products.
- Air conditioners generally include an external air conditioner unit and an internal air conditioner unit.
- the external unit of the air conditioner and the internal unit of the air conditioner are connected through a refrigerant pipeline.
- the refrigerant circulates between the external unit of the air conditioner and the internal unit of the air conditioner, so that the air conditioner realizes the heat exchange function.
- the air conditioner When the air conditioner is in the R&D and debugging stage or when it is moved during use, it is necessary to disassemble and assemble the machine. Before disassembling the air conditioner, the refrigerant in the air conditioner needs to be recycled to prevent the refrigerant from leaking during the disassembly and assembly process.
- this application provides an air-conditioning refrigerant recovery method, device, air conditioner, medium and program product.
- An embodiment of the present application provides a refrigerant recovery method for an air conditioner.
- the air conditioner includes a condenser and an evaporator.
- the first end of the condenser and the first end of the evaporator are connected through a first refrigerant pipeline.
- the second end of the condenser and the second end of the evaporator pass through a second refrigerant pipe
- the pipeline is connected; a first expansion valve is provided on the first refrigerant pipeline, a compressor is provided on the second refrigerant pipeline, and a second expansion valve is provided between the compressor and the evaporator; the method include:
- the second expansion valve is controlled to close to recover the refrigerant of the air conditioner.
- controlling the closing of the second expansion valve according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature includes:
- the second expansion valve is controlled to close according to the first temperature difference and the second temperature difference.
- controlling the closing of the second expansion valve according to the first temperature difference and the second temperature difference includes:
- the second control instruction is sent to the second expansion valve to control the second expansion valve to close.
- controlling the first expansion valve to close according to the operating mode includes:
- control the air conditioner to switch to the cooling mode, and send a first control instruction to the first expansion valve to control the first expansion valve to close.
- sending a first control instruction to the first expansion valve includes:
- a first control instruction is sent to the first expansion valve.
- the method as described above optionally, after controlling the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature, further includes:
- the air conditioner includes a condenser and an evaporator.
- the first end of the condenser and the first end of the evaporator are connected through a first refrigerant pipeline.
- the second end of the condenser and the second end of the evaporator are connected through a second refrigerant pipeline;
- a first expansion valve is provided on the first refrigerant pipeline, and a compressor is provided on the second refrigerant pipeline.
- a second expansion valve is provided between the compressor and the evaporator; the device includes:
- a first acquisition module the first acquisition module is used to acquire refrigerant recovery instructions
- the second acquisition module is used to acquire the operating mode of the air conditioner according to the refrigerant recovery instruction
- a first expansion valve control module the first expansion valve control module is used to control the closing of the first expansion valve according to the operating mode
- a third acquisition module is used to acquire the indoor temperature, the first temperature of the indoor air outlet of the air conditioner, the outdoor temperature, and the second temperature of the outdoor air outlet of the air conditioner;
- a second expansion valve control module is used to control the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature, so as to Recycle the refrigerant of the air conditioner.
- Yet another embodiment of the present application further provides an air conditioner, which includes: at least one processor and a memory;
- the memory stores computer execution instructions
- the at least one processor executes computer execution instructions stored in the memory, so that the air conditioner executes any of the methods described above.
- Yet another embodiment of the present application also provides a computer-readable storage medium, the computer can Computer execution instructions are stored in the read storage medium, and when the computer execution instructions are executed by the processor, they are used to implement any of the above methods.
- Yet another embodiment of the present application further provides a computer program product, including a computer program that implements any of the above methods when executed by a processor.
- the air conditioner includes a condenser and an evaporator.
- the first end of the condenser is connected to the first end of the evaporator.
- the second end of the condenser is connected to the second end of the evaporator through a second refrigerant pipeline; a first expansion valve is provided on the first refrigerant pipeline, and a compression valve is provided on the second refrigerant pipeline.
- a second expansion valve is provided between the compressor and the evaporator; the method includes: obtaining a refrigerant recovery instruction; obtaining the operating mode of the air conditioner according to the refrigerant recovery instruction; controlling the first expansion valve to close according to the operating mode; obtaining the indoor temperature , the first temperature of the indoor air outlet of the air conditioner, the outdoor temperature, and the second temperature of the outdoor air outlet of the air conditioner; according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature, the second expansion valve is controlled to close to recover the energy of the air conditioner.
- Refrigerant Through the above settings, this application can realize automatic recovery of refrigerant, which is beneficial to improving work efficiency.
- Figure 1 is an application scenario diagram of an air conditioning refrigerant recovery method provided by an embodiment of the present application
- Figure 2 is a flow chart of an air conditioning refrigerant recovery method provided by an embodiment of the present application
- Figure 3 is a flow chart of an air conditioning refrigerant recovery method provided by another embodiment of the present application.
- Figure 4 is a schematic structural diagram of an air conditioning refrigerant recovery device provided by an embodiment of the present application.
- Figure 5 is a schematic structural diagram of an air conditioner provided by an embodiment of the present application.
- the air conditioner needs to be disassembled and assembled during the R&D and debugging stage, or when it encounters situations such as moving during use.
- the refrigerant in the air conditioner needs to be recovered before disassembling the unit to prevent the refrigerant from leaking during the disassembly and assembly of the unit, which may cause poor subsequent cooling or heating effects.
- the outdoor unit of the air conditioner and the internal unit of the air conditioner are connected through a refrigerant pipeline, and the refrigerant pipeline is provided with a two-way stop valve and a three-way stop valve. In the refrigeration mode, the two-way stop valve is set on the refrigerant inflow pipe, and the three-way stop valve is set on the refrigerant outflow pipe.
- embodiments of the present application aim to provide an air conditioning refrigerant recovery method, device, air conditioner, medium and process product, by respectively setting first expansion valves on the two refrigerant pipelines between the air conditioner outdoor unit and the air conditioner internal unit. and the second expansion valve, and then obtain the refrigerant recovery instruction; according to the refrigerant recovery instruction, obtain the operating mode of the air conditioner; according to the operating mode, control the first expansion valve to close; then obtain the indoor temperature, the first temperature of the indoor air outlet of the air conditioner, and the outdoor temperature.
- the second expansion valve is controlled to close to recover the refrigerant of the air conditioner and ensure that the refrigerant completely flows into the outdoor unit of the air conditioner.
- the embodiment of the present application can realize automatic recovery of refrigerant, which is beneficial to improving work efficiency.
- FIG 1 is an application scenario diagram of an air conditioning refrigerant recovery method provided by an embodiment of the present application. Please refer to Figure 1.
- the application scenarios of the air conditioning refrigerant recovery method of this embodiment include: air conditioning.
- the air conditioning includes an external air conditioner and an internal air conditioner.
- the external air conditioner is provided with a condenser 110
- the internal air conditioner is provided with an evaporator 210.
- the first end of the condenser 110 and the first end of the evaporator 210 are connected through a first refrigerant pipeline 310
- the second end of the condenser 110 and the second end of the evaporator 210 are connected through a second refrigerant pipeline 320 .
- the first refrigerant pipeline 310 is provided with a two-way stop valve 311; the second refrigerant pipeline 320 is provided with the compressor 120, and a three-way stop valve 321 is provided between the compressor 120 and the evaporator 210.
- the compressor 120 the refrigerant flows between the condenser 110 and the evaporator 210 through the first refrigerant pipeline 310 and the second refrigerant pipeline 320, thereby achieving heat exchange.
- the condenser 110 the refrigerant realizes heat exchange with the outdoor air through the action of the axial flow fan 130; in the evaporator 210, the refrigerant realizes heat exchange with the indoor air through the action of the cross-flow fan 220.
- this embodiment is also provided with a first expansion valve 312 on the first refrigerant pipeline 310, and a second expansion valve 322 on the second refrigerant pipeline 320.
- the first expansion valve 312 and the The two expansion valves 322 are both communicatively connected with the processor of the air conditioner, and are opened and closed under the control of the processor, thereby controlling the opening or closing of the refrigerant pipeline.
- this embodiment is also provided with a first temperature sensor 410 at the indoor air outlet of the air conditioner, a second temperature sensor 420 indoors, and a third temperature sensor 430 at the outdoor air outlet of the air conditioner.
- a fourth temperature sensor 440 is also provided.
- the first temperature sensor 410, the second temperature sensor 420, the third temperature sensor 430 and the fourth temperature sensor 440 are also communicatively connected with the processor of the air conditioner.
- the processor of the air conditioner can better control the opening and closing of the first expansion valve 312 and the second expansion valve 322 by analyzing the temperatures collected by each temperature sensor, thereby realizing the air conditioning refrigerant recovery method provided by this embodiment. . details as follows:
- Figure 2 is a flow chart of an air conditioning refrigerant recovery method provided by an embodiment of the present application. Please refer to Figure 2. The method includes:
- Step S110 Obtain the refrigerant recovery instruction.
- the refrigerant recovery instruction may be input by the user.
- a corresponding refrigerant recovery mode button is provided on the control panel of the air conditioner internal unit, and the user can press the button to cause the processor of the air conditioner to obtain the refrigerant recovery instruction.
- the remote control of the air conditioner may be provided with a corresponding refrigerant recovery mode button, and the user can press the button to cause the processor of the air conditioner to obtain the refrigerant recovery instruction.
- Step S120 Obtain the operating mode of the air conditioner according to the refrigerant recovery instruction.
- the operating mode of the air conditioner is the operating mode of the air conditioner in its current state.
- the operating mode may be displayed on the control panel of the air conditioner; or may be displayed on the remote control of the air conditioner.
- the processor of the air conditioner can directly call the operating mode of the air conditioner.
- Step S130 Control the first expansion valve to close according to the operating mode.
- the processor of the air conditioner can determine whether the operating mode meets the requirements. If it meets the requirements, the processor of the air conditioner can further send a control instruction to the first expansion valve, and the first expansion valve receives the control. It is closed after the command, thereby preventing the refrigerant from flowing through the first refrigerant line.
- Step S140 Obtain the indoor temperature, the first temperature of the indoor air outlet of the air conditioner, the outdoor temperature, and the second temperature of the outdoor air outlet of the air conditioner.
- the indoor temperature can be obtained through temperature sensors installed indoors.
- multiple temperature sensors can be installed at different locations in the room. After obtaining the temperature fed back by each temperature sensor, the average value of the multiple temperature sensors can be obtained. is the indoor temperature.
- the first temperature of the indoor air outlet of the air conditioner can be obtained through a temperature sensor installed at the air outlet of the air conditioner internal unit.
- the outdoor temperature can be obtained through a temperature sensor installed outdoors.
- a temperature sensor can be installed at a certain distance from the outdoor unit of the air conditioner, and the distance can be set as needed.
- the second temperature of the outdoor air outlet of the air conditioner can be obtained through a temperature sensor installed at the air outlet of the outdoor unit of the air conditioner.
- Step S150 Control the second expansion valve to close based on the indoor temperature, the first temperature, the outdoor temperature and the second temperature to recover the refrigerant of the air conditioner.
- the processor of the air conditioner can compare the indoor temperature, the first temperature, the outdoor temperature and the second temperature with the preset temperature value to determine whether the refrigerant has completely flowed into the air conditioner. in the outdoor unit to determine whether the second expansion valve needs to be closed.
- a control command can be sent to the second expansion valve.
- the second expansion valve will close after receiving the control command, thereby preventing the refrigerant from flowing through the second refrigerant pipeline and realizing the complete flow of the refrigerant. Recycle it into the outdoor unit of the air conditioner.
- this embodiment controls the first expansion valve to automatically close according to the operating mode. Further, based on the indoor temperature, the first temperature, the outdoor temperature and the second temperature, it is determined that all the refrigerant has flowed to the outdoor unit of the air conditioner and then the second expansion is controlled. The valve automatically closes, thereby realizing automatic recovery of refrigerant, which is beneficial to improving work efficiency.
- FIG 3 is a flow chart of an air conditioning refrigerant recovery method provided by another embodiment of the present application. Referring to Figure 3, the method includes:
- Step S210 Obtain the refrigerant recovery instruction.
- Step S220 Obtain the operating mode of the air conditioner according to the refrigerant recovery instruction.
- Steps S210 to S220 in this embodiment are the same as steps S110 to S120 in the above method, and will not be described again here.
- Step S230 Determine whether the operating mode is the cooling mode.
- the processor of the air conditioner can determine whether the air conditioner is currently operating in the cooling mode according to the obtained operating mode.
- step S240 is executed to send a first control instruction to the first expansion valve to control the first expansion valve to close.
- step S250 is executed to control the air conditioner to switch to the cooling mode, and send a first control instruction to the first expansion valve to control the first expansion valve to close.
- the processor of the air conditioner first controls the air conditioner to switch to the cooling mode, and then sends a first control instruction to the first expansion valve to control the first expansion valve to close.
- the arrow in Figure 1 shows the flow direction of the refrigerant in the refrigeration mode. It can be seen from Figure 1 that in the refrigeration mode, the refrigerant flows out of the compressor and first flows into the condenser. After passing through the condenser, it reaches the first expansion valve. , so the refrigerant has sufficient buffer paths. If it is running in the heating mode, the distance between the compressor and the second expansion valve is too short and lacks the necessary buffer. If the second expansion valve is directly shut down, the refrigerant may stop the compressor, resulting in failure of refrigerant recovery and serious consequences. It may even damage the compressor.
- the working status of the compressor can be obtained first.
- the working state is normal state or abnormal state.
- the working state is a normal state
- the first control command is sent to the first expansion valve; if the working state is an abnormal state, the first control command is not sent to the first expansion valve; thereby ensuring the normal operation of subsequent refrigerant recovery operations.
- Step S260 Obtain the indoor temperature, the first temperature of the indoor air outlet of the air conditioner, the outdoor temperature, and the second temperature of the outdoor air outlet of the air conditioner.
- Step S260 in this embodiment is the same as step S140 in the above method, and will not be described again here.
- Step S270 Determine the first temperature difference based on the indoor temperature and the temperature of the indoor air outlet of the air conditioner; determine the second temperature difference based on the outdoor temperature and the temperature of the outdoor air outlet of the air conditioner.
- the first temperature difference is the absolute value of the difference between the indoor temperature and the temperature of the indoor air outlet of the air conditioner
- the second temperature difference is the absolute value of the difference between the outdoor temperature and the temperature of the outdoor air outlet of the air conditioner.
- Step S280 Control the second expansion valve to close based on the first temperature difference and the second temperature difference.
- the first preset temperature difference range and the second preset temperature difference range may be pre-stored in the memory of the air conditioner, and the processor of the air conditioner may compare the first temperature difference and the second temperature difference with the first preset temperature difference range and the second preset temperature difference range respectively. After comparing the preset temperature difference range, it is determined whether to close the second expansion valve.
- the first temperature difference is within the first preset temperature difference range
- the second temperature difference is within the second preset temperature difference range
- the temperature of the outdoor air outlet of the air conditioner is relatively close to the outdoor temperature, and the refrigerant stored in the condenser has basically finished exchanging heat.
- a second control command can be generated and sent to the second expansion valve to control the second expansion valve to close.
- the air conditioner keeps running in the current state.
- Step S290 Generate a shutdown instruction, and control the air conditioner to shut down according to the shutdown instruction.
- the air conditioner can generate a shutdown command and shut down according to the shutdown command to stop the compressor.
- this embodiment controls the first expansion valve to automatically close in the refrigeration mode, and further calculates based on the indoor temperature, the first temperature, the outdoor temperature and the second temperature.
- the first temperature difference and the second temperature difference are obtained.
- the first temperature difference is within the first preset temperature difference range
- the second temperature difference is within the second preset temperature difference range, it means that all the refrigerant flows to the outdoor unit of the air conditioner, and then the second expansion valve is controlled to close automatically. , thereby realizing automatic recovery of refrigerant, which is beneficial to improving work efficiency.
- FIG 4 is a schematic structural diagram of an air conditioning refrigerant recovery device provided by an embodiment of the present application. Please refer to Figure 4. This embodiment also provides an air conditioning refrigerant recovery device, which includes:
- the first acquisition module 501 is used to acquire the refrigerant recovery instruction
- the second acquisition module 502 is used to acquire the operating mode of the air conditioner according to the refrigerant recovery instruction
- the first expansion valve control module 503 is used to control the first expansion valve to close according to the operating mode
- the third acquisition module 504 is used to acquire the indoor temperature, the first temperature of the indoor air outlet of the air conditioner, the outdoor temperature, and the second temperature of the outdoor air outlet of the air conditioner;
- the second expansion valve control module 505 is used to control the second expansion valve to close according to the indoor temperature, the first temperature, the outdoor temperature and the second temperature to recover the refrigerant of the air conditioner.
- the air-conditioning refrigerant recovery device provided in this embodiment can perform the actions of the air-conditioning processor in the above method embodiment. Its implementation principles and technical effects are similar and will not be described again here.
- the air conditioning refrigerant recovery device of this embodiment controls the first expansion valve to automatically close in the refrigeration mode, and further calculates the first temperature difference and the second temperature based on the indoor temperature, the first temperature, the outdoor temperature and the second temperature.
- Second temperature difference when the first temperature difference is within the first preset temperature difference range, and the second temperature difference is within the second preset temperature difference range, it means that all the refrigerant flows to the outdoor unit of the air conditioner, and then the second expansion valve is controlled to automatically close, thereby realizing automatic refrigerant Recycling helps improve work efficiency.
- FIG. 5 is a schematic structural diagram of an air conditioner provided by an embodiment of the present application. Referring to Figure 5, this embodiment also provides an air conditioner, including: at least one processor 602 and a memory 601;
- Memory 601 stores computer execution instructions
- At least one processor 602 is used to implement the air conditioning refrigerant recovery method in this embodiment when the program instructions are executed.
- the program instructions are executed.
- This embodiment will not be discussed here. Again.
- the air conditioner may also include an input/output interface 603.
- the input/output interface 603 may include an independent output interface and an input interface, or may be an integrated interface integrating input and output. Among them, the output interface is used to output data, and the input interface is used to obtain input data.
- This embodiment also provides a computer-readable storage medium.
- Computer-executable instructions are stored in the computer-readable storage medium. When the computer-executable instructions are executed by at least one processor of the electronic device, they are used to realize the air-conditioning refrigerant recovery in the above embodiment. method.
- This embodiment also provides a computer program product.
- the program product includes execution instructions, and the execution instructions are stored in a readable storage medium.
- At least one processor of the electronic device can read the execution instruction from the readable storage medium, and the at least one processor executes the execution instruction so that the electronic device implements the air conditioning refrigerant recovery method provided by the various embodiments described above.
- the aforementioned program can be stored in a readable memory.
- the steps including the above method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disk (English: optical disc) and any combination thereof.
- Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine, such that the instructions executed by the processing unit of the computer or other programmable data processing device produce a A device for realizing the functions specified in one process or multiple processes of the flowchart and/or one block or multiple blocks of the block diagram.
- These computer program instructions may also be stored in a computer or other programmable data
- a processing device operates in a computer-readable memory in a specific manner such that instructions stored in the computer-readable memory produce an article of manufacture that includes instruction means implementing a process or processes in a flowchart and/or a block diagram Functions specified in a box or boxes.
- These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
- Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.
- the term “including” and its variations may refer to non-limiting inclusion; the term “or” and its variations may refer to “and/or”.
- the terms “first”, “second”, etc. in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
- “plurality” means two or more.
- “And/or” describes the relationship between related objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character “/" generally indicates that the related objects are in an "or” relationship.
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Abstract
本申请属于家用电器技术领域，具体涉及一种空调冷媒回收方法、装置、空调、介质及程序产品，空调包括第一冷媒管路和第二冷媒管路，第一冷媒管路上设有第一膨胀阀，第二冷媒管路上设有第二膨胀阀；该方法包括：获取冷媒回收指令；根据冷媒回收指令，获取空调的运行模式；根据运行模式，控制第一膨胀阀关闭；获取室内温度、空调的室内出风口的第一温度、室外温度以及空调的室外出风口的第二温度；根据室内温度、第一温度、室外温度和第二温度，控制第二膨胀阀关闭，以回收空调的冷媒。本申请可以实现冷媒的自动回收，有利于提高工作效率。
Description
本申请要求于2022年6月21日提交中国专利局、申请号为202210705165.3、申请名称为“空调冷媒回收方法、装置、空调、介质及程序产品”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请属于家用电器技术领域，具体涉及一种空调冷媒回收方法、装置、空调、介质及程序产品。
空调器一般包括空调外机和空调内机，空调外机和空调内机通过冷媒管路相连接，冷媒在空调外机和空调内机之间循环流动，从而使空调实现换热的功能。
空调在研发调试阶段或使用过程中遇到搬家等情况时，均需要进行拆装机作业，在拆机之前需要对空调中的冷媒进行回收，防止冷媒在拆装机的过程中产生泄露。
但是，在相关技术中，整个冷媒回收的过程均需要人工操作，工作效率较低且易产生失误。
发明内容
为了解决相关技术中的上述问题，即为了解决相关技术中冷媒回收的过程效率较低且易产生失误的问题，本申请提供了一种空调冷媒回收方法、装置、空调、介质及程序产品。
本申请一实施例提供了一种空调冷媒回收方法，所述空调包括冷凝器和蒸发器，所述冷凝器的第一端与所述蒸发器的第一端通过第一冷媒管路连通，所述冷凝器的第二端与所述蒸发器的第二端通过第二冷媒管
路连通；所述第一冷媒管路上设有第一膨胀阀，所述第二冷媒管路上设有压缩机，所述压缩机与所述蒸发器之间设有第二膨胀阀；所述方法包括：
获取冷媒回收指令；
根据所述冷媒回收指令，获取所述空调的运行模式；
根据所述运行模式，控制所述第一膨胀阀关闭；
获取室内温度、所述空调的室内出风口的第一温度、室外温度以及所述空调的室外出风口的第二温度；
根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭，以回收所述空调的冷媒。
如上所述的方法，可选地，根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭，包括：
基于所述室内温度和所述空调的室内出风口的温度，确定第一温差；
基于所述室外温度和所述空调的室外出风口的温度，确定第二温差；
根据所述第一温差和所述第二温差，控制所述第二膨胀阀关闭。
如上所述的方法，可选地，根据所述第一温差和所述第二温差，控制所述第二膨胀阀关闭，包括：
若所述第一温差位于第一预设温差范围，且所述第二温差位于第二预设温差范围内，则生成第二控制指令；
向所述第二膨胀阀发送所述第二控制指令，以控制所述第二膨胀阀关闭。
如上所述的方法，可选地，根据所述运行模式，控制所述第一膨胀阀关闭，包括：
判断所述运行模式是否为制冷模式；
若是，则向所述第一膨胀阀发送第一控制指令，以控制所述第一膨胀阀关闭；
若否，则控制所述空调切换为所述制冷模式，并向所述第一膨胀阀发送第一控制指令，以控制所述第一膨胀阀关闭。
如上所述的方法，可选地，向所述第一膨胀阀发送第一控制指令，包括：
获取所述压缩机的工作状态，所述工作状态为正常状态或者异常状态；
若所述工作状态为正常状态，则向所述第一膨胀阀发送第一控制指令。
如上所述的方法，可选地，根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭之后，还包括：
生成关机指令，并根据所述关机指令控制所述空调关机。
本申请另一实施例还提供一种空调冷媒回收装置，所述空调包括冷凝器和蒸发器，所述冷凝器的第一端与所述蒸发器的第一端通过第一冷媒管路连通，所述冷凝器的第二端与所述蒸发器的第二端通过第二冷媒管路连通；所述第一冷媒管路上设有第一膨胀阀，所述第二冷媒管路上设有压缩机，所述压缩机与所述蒸发器之间设有第二膨胀阀；所述装置包括：
第一获取模块，所述第一获取模块用于获取冷媒回收指令；
第二获取模块，所述第二获取模块用于根据所述冷媒回收指令，获取所述空调的运行模式；
第一膨胀阀控制模块，所述第一膨胀阀控制模块用于根据所述运行模式，控制所述第一膨胀阀关闭；
第三获取模块，所述第三获取模块用于获取室内温度、所述空调的室内出风口的第一温度、室外温度以及所述空调的室外出风口的第二温度；
第二膨胀阀控制模块，所述第二膨胀阀控制模块用于根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭，以回收所述空调的冷媒。
本申请再一实施例还提供一种空调，所述空调包括：至少一个处理器和存储器；
所述存储器存储计算机执行指令；
所述至少一个处理器执行所述存储器存储的计算机执行指令，使得所述空调执行如上任一所述的方法。
本申请又一实施例还提供一种计算机可读存储介质，所述计算机可
读存储介质中存储有计算机执行指令，所述计算机执行指令被处理器执行时用于实现如上任一所述的方法。
本申请又一实施例还提供一种计算机程序产品，包括计算机程序，所述计算机程序被处理器执行时实现如上任一所述的方法。
本领域技术人员能够理解的是，本申请实施例提供一种空调冷媒回收方法、装置、空调、介质及程序产品，空调包括冷凝器和蒸发器，冷凝器的第一端与蒸发器的第一端通过第一冷媒管路连通，冷凝器的第二端与蒸发器的第二端通过第二冷媒管路连通；第一冷媒管路上设有第一膨胀阀，第二冷媒管路上设有压缩机，压缩机与蒸发器之间设有第二膨胀阀；该方法包括：获取冷媒回收指令；根据冷媒回收指令，获取空调的运行模式；根据运行模式，控制第一膨胀阀关闭；获取室内温度、空调的室内出风口的第一温度、室外温度以及空调的室外出风口的第二温度；根据室内温度、第一温度、室外温度和第二温度，控制第二膨胀阀关闭，以回收空调的冷媒。通过上述设置，本申请可以实现冷媒的自动回收，有利于提高工作效率。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图做一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一实施例提供的空调冷媒回收方法的应用场景图；
图2是本申请一实施例提供的空调冷媒回收方法的流程图；
图3是本申请另一实施例提供的空调冷媒回收方法的流程图；
图4是本申请一实施例提供的空调冷媒回收装置的结构示意图；
图5是本申请一实施例提供的空调的结构示意图。
附图标记：
110-冷凝器；120-压缩机；130-轴流风扇；
210-蒸发器；220-贯流风扇；
310-第一冷媒管路；311-二通截止阀；312-第一膨胀阀；320-第二
冷媒管路；321-三通截止阀；322-第二膨胀阀；
410-第一温度传感器；420-第二温度传感器；430-第三温度传感器；
440-第四温度传感器；
501-第一获取模块；502-第二获取模块；503-第一膨胀阀控制模块；
504-第三获取模块；505-第二膨胀阀控制模块；
601-存储器；602-处理器；603-输入/输出接口。
110-冷凝器；120-压缩机；130-轴流风扇；
210-蒸发器；220-贯流风扇；
310-第一冷媒管路；311-二通截止阀；312-第一膨胀阀；320-第二
冷媒管路；321-三通截止阀；322-第二膨胀阀；
410-第一温度传感器；420-第二温度传感器；430-第三温度传感器；
440-第四温度传感器；
501-第一获取模块；502-第二获取模块；503-第一膨胀阀控制模块；
504-第三获取模块；505-第二膨胀阀控制模块；
601-存储器；602-处理器；603-输入/输出接口。
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
空调在研发调试阶段，或使用过程中遇到搬家等情况时，均需要进行拆装机作业。在拆机之前需要对空调中的冷媒进行回收，防止冷媒在拆装机的过程中产生泄露，进而造成后续制冷或制热效果差的问题。在相关技术中，空调外机和空调内机之间通过冷媒管路连通，冷媒管路上设有二通截止阀和三通截止阀。在制冷模式下，二通截止阀设置在冷媒流入管路上，三通截止阀设置在冷媒流出管路上。回收冷媒时，工人先手动关闭二通截止阀，然后等待一定时间后再手动关闭三通截止阀，以实现冷媒的回收。但是，由于整个冷媒回收的过程均需要人工操作，关闭二通截止阀后的等待时间完全依靠人工进行判断，工作效率较低且易产生失误。若等待时间过短，则冷媒未完全流入空调外机中，在拆机时可能造成冷媒泄露；若等待时间过长，则可能会对压缩机造成损坏。
有鉴于此，本申请实施例旨在提供一种空调冷媒回收方法、装置、空调、介质及程序产品，通过在空调外机和空调内机之间的两个冷媒管路上分别设置第一膨胀阀和第二膨胀阀，然后获取冷媒回收指令；根据冷媒回收指令，获取空调的运行模式；根据运行模式，控制第一膨胀阀关闭；随后获取室内温度、空调的室内出风口的第一温度、室外温度以
及空调的室外出风口的第二温度；根据室内温度、第一温度、室外温度和第二温度，控制第二膨胀阀关闭，以回收空调的冷媒，保证冷媒完全流入空调外机中。本申请实施例可以实现冷媒的自动回收，有利于提高工作效率。
为了便于对本申请的理解，下面先对本申请实施例提供的智能家居控制方法的应用场景进行示意说明。
图1是本申请一实施例提供的空调冷媒回收方法的应用场景图。请参照图1，本实施例的空调冷媒回收方法的应用场景包括：空调，空调包括空调外机和空调内机，空调外机中设有冷凝器110，空调内机中设有蒸发器210，冷凝器110的第一端与蒸发器210的第一端通过第一冷媒管路310相连接，冷凝器110的第二端与蒸发器210的第二端通过第二冷媒管路320相连接。第一冷媒管路310上设有二通截止阀311；第二冷媒管路320上设有压缩机120，压缩机120与蒸发器210之间设有三通截止阀321。冷媒在压缩机120的驱动下，通过第一冷媒管路310和第二冷媒管路320，在冷凝器110和蒸发器210之间流动，从而实现热交换。具体的，在冷凝器110中，冷媒通过轴流风扇130的作用实现与室外空气的热交换；在蒸发器210中，冷媒通过贯流风扇220的作用实现与室内空气的热交换。
为了实现自动收冷媒，本实施例在第一冷媒管路310上还设有第一膨胀阀312，在第二冷媒管路320上还设有第二膨胀阀322，第一膨胀阀312和第二膨胀阀322均与空调的处理器通信连接，在处理器的控制下实现开闭，从而控制冷媒管路的开启或关闭。此外，本实施例在空调的室内出风口处还设有第一温度传感器410，在室内还设有第二温度传感器420，在空调的室外出风口处还设有第三温度传感器430，在室外还设有第四温度传感器440，第一温度传感器410、第二温度传感器420、第三温度传感器430和第四温度传感器440也均与空调的处理器通信连接，在图1所示的应用场景中，在制冷模式下，空调的处理器通过分析各温度传感器采集的温度，可以更好的控制第一膨胀阀312和第二膨胀阀322的开闭，实现本实施例提供的空调冷媒回收方法。具体如下：
图2是本申请一实施例提供的空调冷媒回收方法的流程图。请参照
图2，该方法包括：
步骤S110、获取冷媒回收指令。
示例性的，本实施例中冷媒回收指令可以是用户输入的。例如，在空调内机的控制面板上设有相应的冷媒回收模式按键，用户可通过按压该按键使得空调的处理器获取到冷媒回收指令。又如，空调的遥控器上可以设有相应的冷媒回收模式按键，用户可通过按压该按键使得空调的处理器获取到冷媒回收指令。
步骤S120、根据冷媒回收指令，获取空调的运行模式。
示例性的，空调的运行模式为空调在当前状态下的工作模式，运行模式可以显示在空调的控制面板上；或者，可以显示在空调的遥控器上。当接收到冷媒回收指令后，空调的处理器可以直接调取空调的运行模式。
步骤S130、根据运行模式，控制第一膨胀阀关闭。
示例性的，空调的处理器获取到运行模式之后，可以判断该运行模式是否符合要求，若符合要求，空调的处理器可以进一步向第一膨胀阀发送控制指令，第一膨胀阀接收到该控制指令后关闭，从而阻止冷媒从第一冷媒管路中流通。
步骤S140、获取室内温度、空调的室内出风口的第一温度、室外温度以及空调的室外出风口的第二温度。
示例性的，室内温度可以通过安装在室内的温度传感器获得，例如，在室内的不同位置可以安装多个温度传感器，获取到每一个温度传感器反馈的温度后，可以取多个温度传感器的均值做为室内温度。空调的室内出风口的第一温度可以通过安装在空调内机的出风口处的温度传感器获取到。室外温度可以通过安装在室外的温度传感器获取到。例如，可以在距离空调外机一定距离处安装温度传感器，该距离可以根据需要进行设置。空调的室外出风口的第二温度可以通过安装在空调外机的出风口处的温度传感器获取到。
步骤S150、根据室内温度、第一温度、室外温度和第二温度，控制第二膨胀阀关闭，以回收空调的冷媒。
示例性的，空调的处理器可以通过室内温度、第一温度、室外温度和第二温度与预设的温度值进行比较，进而判断冷媒是否完全流入空调
外机内，从而判断是否需要关闭第二膨胀阀。当判断冷媒完全流入空调外机时，即可向第二膨胀阀发送控制指令，第二膨胀阀接收到该控制指令后关闭，从而阻止冷媒从第二冷媒管路中流通，实现了将冷媒完全回收至空调外机中。
本实施例接收到冷媒回收指令后，根据运行模式控制第一膨胀阀自动关闭，进一步根据室内温度、第一温度、室外温度和第二温度，判断冷媒全部流到空调外机后控制第二膨胀阀自动关闭，从而实现冷媒的自动回收，有利于提高工作效率。
图3是本申请另一实施例提供的空调冷媒回收方法的流程图。请参照图3，该方法包括：
步骤S210、获取冷媒回收指令。
步骤S220、根据冷媒回收指令，获取空调的运行模式。
本实施例中步骤S210-步骤S220与上述方法中步骤S110-步骤S120相同，此处不再赘述。
步骤S230、判断运行模式是否为制冷模式。
示例性的，本实施例中空调的处理器可以根据获取到的运行模式判断空调当前是否在制冷模式下运行。
若是，则执行步骤S240、向第一膨胀阀发送第一控制指令，以控制第一膨胀阀关闭。
若否，则执行步骤S250、控制空调切换为制冷模式，并向第一膨胀阀发送第一控制指令，以控制第一膨胀阀关闭。
示例性的，在此步骤下空调的处理器先控制空调切换为制冷模式运行，然后再向第一膨胀阀发送第一控制指令，以控制第一膨胀阀关闭。图1中箭头所示为冷媒在制冷模式下的流动方向，结合图1可看出，在制冷模式下，冷媒从压缩机中流出后先流入冷凝器，经过冷凝器后再到达第一膨胀阀，因此冷媒有足够的缓冲路径。而若在制热模式下运行，压缩机距离第二膨胀阀的距离过短，缺少必要的缓冲，直接关停第二膨胀阀，冷媒可能会将压缩机憋停，导致冷媒回收失败，严重的甚至会损坏压缩机。
进一步地，在发送第一控制指令之前，可以先获取压缩机的工作状
态，工作状态为正常状态或者异常状态。
若工作状态为正常状态，则向第一膨胀阀发送第一控制指令；若工作状态为异常状态，则不向第一膨胀阀发送第一控制指令；从而确保后续冷媒回收作业的正常运行。
步骤S260、获取室内温度、空调的室内出风口的第一温度、室外温度以及空调的室外出风口的第二温度。
本实施例中步骤S260与上述方法中步骤S140相同，此处不再赘述。
步骤S270、基于室内温度和空调的室内出风口的温度，确定第一温差；基于室外温度和空调的室外出风口的温度，确定第二温差。
示例性的，第一温差为室内温度和空调的室内出风口的温度的差值的绝对值；第二温差为室外温度和空调的室外出风口的温度的差值的绝对值。
步骤S280、根据第一温差和第二温差，控制第二膨胀阀关闭。
示例性的，空调的存储器中可以预先存储有第一预设温差范围和第二预设温差范围，空调的处理器可以将第一温差和第二温差分别与第一预设温差范围和第二预设温差范围进行比较后，判断是否关闭第二膨胀阀。
具体的，若第一温差位于第一预设温差范围，且第二温差位于第二预设温差范围内，则表明空调的室内出风口的温度与室内温度比较接近，蒸发器中已经基本没有冷媒；空调的室外出风口的温度与室外温度比较接近，冷凝器中存储的冷媒也已经基本交换完热量。基于上述可以判断冷媒已经基本回收到空调外机中，此时可以生成第二控制指令，并向第二膨胀阀发送第二控制指令，以控制第二膨胀阀关闭。
若第一温差在第一预设温差范围之外和/或第二温差在第二预设温差范围之外，则空调保持当前状态运行。
步骤S290、生成关机指令，并根据关机指令控制空调关机。
示例性的，当完成冷媒的回收后，空调可以生成关机指令，并根据关机指令关机，使压缩机停止工作。
本实施例接收到冷媒回收指令后，在制冷模式下控制第一膨胀阀自动关闭，进一步根据室内温度、第一温度、室外温度和第二温度，计算
得到第一温差和第二温差，当第一温差位于第一预设温差范围，且第二温差位于第二预设温差范围内表明冷媒全部流到空调外机，然后控制第二膨胀阀自动关闭，从而实现冷媒的自动回收，有利于提高工作效率。
图4是本申请一实施例提供的空调冷媒回收装置的结构示意图。请参照图4，本实施例还提供一种空调冷媒回收装置，该装置包括：
第一获取模块501，第一获取模块501用于获取冷媒回收指令；
第二获取模块502，第二获取模块502用于根据冷媒回收指令，获取空调的运行模式；
第一膨胀阀控制模块503，第一膨胀阀控制模块503用于根据运行模式，控制第一膨胀阀关闭；
第三获取模块504，第三获取模块504用于获取室内温度、空调的室内出风口的第一温度、室外温度以及空调的室外出风口的第二温度；
第二膨胀阀控制模块505，第二膨胀阀控制模块505用于根据室内温度、第一温度、室外温度和第二温度，控制第二膨胀阀关闭，以回收空调的冷媒。
本实施例提供的空调冷媒回收装置可以执行上述方法实施例中空调的处理器的动作，其实现原理和技术效果类似，在此不再赘述。
本实施例的空调冷媒回收装置接收到冷媒回收指令后，在制冷模式下控制第一膨胀阀自动关闭，进一步根据室内温度、第一温度、室外温度和第二温度，计算得到第一温差和第二温差，当第一温差位于第一预设温差范围，且第二温差位于第二预设温差范围内表明冷媒全部流到空调外机，然后控制第二膨胀阀自动关闭，从而实现冷媒的自动回收，有利于提高工作效率。
图5是本申请一实施例提供的空调的结构示意图。请参照图5，本实施例还提供一种空调，包括：至少一个处理器602和存储器601；
存储器601存储计算机执行指令；
至少一个处理器602，用于在程序指令被执行时实现本实施例中的空调冷媒回收方法，具体实现原理可参见上述实施例，本实施例此处不
再赘述。
该空调还可以包括输入/输出接口603。
输入/输出接口603可以包括独立的输出接口和输入接口，也可以为集成输入和输出的集成接口。其中，输出接口用于输出数据，输入接口用于获取输入的数据。
本实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机执行指令，当计算机执行指令被电子设备的至少一个处理器执行时用于实现上述实施例中的空调冷媒回收方法。
本实施例还提供一种计算机程序产品，该程序产品包括执行指令，该执行指令存储在可读存储介质中。电子设备的至少一个处理器可以从可读存储介质读取该执行指令，至少一个处理器执行该执行指令使得电子设备实施上述的各种实施方式提供的空调冷媒回收方法。
实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一可读取存储器中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储器(存储介质)包括：只读存储器(英文：read-only memory，缩写：ROM)、RAM、快闪存储器、硬盘、固态硬盘、磁带(英文：magnetic tape)、软盘(英文：floppy disk)、光盘(英文：optical disc)及其任意组合。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理单元以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理单元执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据
处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
在本申请中，术语“包括”及其变形可以指非限制性的包括；术语“或”及其变形可以指“和/或”。本申请中术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。本申请中，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
Claims (10)
- 一种空调冷媒回收方法，其特征在于，所述空调包括冷凝器和蒸发器，所述冷凝器的第一端与所述蒸发器的第一端通过第一冷媒管路连通，所述冷凝器的第二端与所述蒸发器的第二端通过第二冷媒管路连通；所述第一冷媒管路上设有第一膨胀阀，所述第二冷媒管路上设有压缩机，所述压缩机与所述蒸发器之间设有第二膨胀阀；所述方法包括：获取冷媒回收指令；根据所述冷媒回收指令，获取所述空调的运行模式；根据所述运行模式，控制所述第一膨胀阀关闭；获取室内温度、所述空调的室内出风口的第一温度、室外温度以及所述空调的室外出风口的第二温度；根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭，以回收所述空调的冷媒。
- 根据权利要求1所述的方法，其特征在于，根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭，包括：基于所述室内温度和所述空调的室内出风口的温度，确定第一温差；基于所述室外温度和所述空调的室外出风口的温度，确定第二温差；根据所述第一温差和所述第二温差，控制所述第二膨胀阀关闭。
- 根据权利要求2所述的方法，其特征在于，根据所述第一温差和所述第二温差，控制所述第二膨胀阀关闭，包括：若所述第一温差位于第一预设温差范围，且所述第二温差位于第二预设温差范围内，则生成第二控制指令；向所述第二膨胀阀发送所述第二控制指令，以控制所述第二膨胀阀关闭。
- 根据权利要求1-3任一项所述的方法，其特征在于，根据所述运行模式，控制所述第一膨胀阀关闭，包括：判断所述运行模式是否为制冷模式；若是，则向所述第一膨胀阀发送第一控制指令，以控制所述第一膨胀阀关闭；若否，则控制所述空调切换为所述制冷模式，并向所述第一膨胀阀发送第一控制指令，以控制所述第一膨胀阀关闭。
- 根据权利要求4所述的方法，其特征在于，向所述第一膨胀阀发送第一控制指令，包括：获取所述压缩机的工作状态，所述工作状态为正常状态或者异常状态；若所述工作状态为正常状态，则向所述第一膨胀阀发送第一控制指令。
- 根据权利要求4所述的方法，其特征在于，根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭之后，还包括：生成关机指令，并根据所述关机指令控制所述空调关机。
- 一种空调冷媒回收装置，其特征在于，所述空调包括冷凝器和蒸发器，所述冷凝器的第一端与所述蒸发器的第一端通过第一冷媒管路连通，所述冷凝器的第二端与所述蒸发器的第二端通过第二冷媒管路连通；所述第一冷媒管路上设有第一膨胀阀，所述第二冷媒管路上设有压缩机，所述压缩机与所述蒸发器之间设有第二膨胀阀；所述装置包括：第一获取模块，所述第一获取模块用于获取冷媒回收指令；第二获取模块，所述第二获取模块用于根据所述冷媒回收指令，获取所述空调的运行模式；第一膨胀阀控制模块，所述第一膨胀阀控制模块用于根据所述运行模式，控制所述第一膨胀阀关闭；第三获取模块，所述第三获取模块用于获取室内温度、所述空调的室内出风口的第一温度、室外温度以及所述空调的室外出风口的第二温度；第二膨胀阀控制模块，所述第二膨胀阀控制模块用于根据所述室内温度、所述第一温度、所述室外温度和所述第二温度，控制所述第二膨胀阀关闭，以回收所述空调的冷媒。
- 一种空调，其特征在于，所述空调包括：至少一个处理器和存储器；所述存储器存储计算机执行指令；所述至少一个处理器执行所述存储器存储的计算机执行指令，使得所述空调执行如权利要求1-6中任一所述的方法。
- 一种计算机可读存储介质，其特征在于，所述计算机可读存储 介质中存储有计算机执行指令，所述计算机执行指令被处理器执行时用于实现如权利要求1-6中任一所述的方法。
- 一种计算机程序产品，其特征在于，包括计算机程序，所述计算机程序被处理器执行时实现如权利要求1-6中任一所述的方法。
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