CN115371153A - Air conditioner and control method - Google Patents

Air conditioner and control method Download PDF

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Publication number
CN115371153A
CN115371153A CN202211007404.4A CN202211007404A CN115371153A CN 115371153 A CN115371153 A CN 115371153A CN 202211007404 A CN202211007404 A CN 202211007404A CN 115371153 A CN115371153 A CN 115371153A
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China
Prior art keywords
temperature
heat exchanger
port
indoor
preset
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Granted
Application number
CN202211007404.4A
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Chinese (zh)
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CN115371153B (en
Inventor
车雯
冉明士
王喜成
杨伟
叶培龙
刘永强
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202211007404.4A priority Critical patent/CN115371153B/en
Publication of CN115371153A publication Critical patent/CN115371153A/en
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Publication of CN115371153B publication Critical patent/CN115371153B/en
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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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/873—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling refrigerant heaters
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to an air conditioner and a control method, wherein the air conditioner comprises a compressor, a control unit and a control unit, wherein the compressor comprises an air inlet end and an air outlet end; the first heating module comprises a first air inlet and a first air outlet, and the first air outlet is connected with the air inlet end; the second heating module comprises a second air inlet and a second air outlet, and the second air inlet is connected with the air exhaust end; the four-way valve comprises a first port, a second port, a third port and a fourth port, the first port is communicated with the indoor heat exchanger, the second port is communicated with the outdoor heat exchanger, the third port is communicated with the first air inlet, and the fourth port is communicated with the second air outlet. According to the air conditioner, the first heating module and the second heating module can be used for heating the refrigerant entering the compressor and flowing out of the compressor, so that the rising rate of the pipe temperature of the indoor heat exchanger is increased, and the pipe temperature of the indoor heat exchanger can reach the condition that an indoor fan is started as soon as possible.

Description

Air conditioner and control method
Technical Field
The application relates to the technical field of air conditioners, in particular to an air conditioner and a control method.
Background
When a heat pump air conditioner is used for heating in winter, and when the air conditioner is started, the temperature of the indoor heat exchanger rises for a certain time, so that the indoor fan is not started in the process of raising the temperature of the indoor heat exchanger until the temperature of the indoor heat exchanger rises to meet the condition of starting the indoor fan, the indoor fan is started, the heating comfort of a user when the air conditioner is started is seriously influenced, the indoor fan is started when the outdoor fan runs for more than three minutes in the heating process of the air conditioner on the market, and the use experience of the user at the initial starting stage is greatly influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an air conditioner, when the air conditioner is just started during heating, the refrigerant entering the compressor and flowing out of the compressor can be heated through the first heating module and the second heating module, so that the rising rate of the pipe temperature of the indoor heat exchanger is increased, and the pipe temperature of the indoor heat exchanger can reach the condition that an indoor fan is started as soon as possible.
An air conditioner according to the present invention includes: a compressor including an intake end and an exhaust end; the first heating module comprises a first air inlet and a first air outlet, and the first air outlet is connected with the air inlet end; the second heating module comprises a second air inlet and a second air outlet, and the second air inlet is connected with the air exhaust end; the indoor heat exchanger, outdoor heat exchanger and cross valve, the cross valve includes first port, the second port, third port and fourth port, first port and indoor heat exchanger intercommunication, the second port communicates with outdoor heat exchanger, the third port communicates with first air inlet, the fourth port communicates with the second gas outlet, when heating the state, first port and fourth port intercommunication, second port and third port intercommunication, when refrigerating the state, second port and fourth port intercommunication, first port and third port intercommunication.
According to the air conditioner, the first heating module and the second heating module can be used for heating the refrigerant entering the compressor and flowing out of the compressor, so that the rising rate of the pipe temperature of the indoor heat exchanger is increased, the pipe temperature of the indoor heat exchanger can reach the condition that an indoor fan is started as soon as possible, hot air is sent to the indoor space, and the heating comfort of a user in the initial starting stage in cold weather is improved.
According to the air conditioner of the present invention, each of the first and second heating modules includes: a housing defining a mounting cavity; the heat exchange tube is arranged in the installation cavity and internally defines a refrigerant channel; at least one heating element, the heating element is located the installation intracavity.
Optionally, the first and second heating modules further comprise: the heat conduction layer is filled in the mounting cavity; the heat preservation layer wraps the shell.
Optionally, a first temperature sensor is arranged on the outer side of the shell of the first heating module, and a second temperature sensor is arranged on the outer side of the shell of the second heating module.
The air conditioner further comprises a switch valve and a communicating pipe, wherein the indoor heat exchanger comprises a first sub heat exchanger and a second sub heat exchanger which are connected in parallel, the second sub heat exchanger is connected with the communicating pipe in series, the communicating pipe is arranged between the four-way valve and the second sub heat exchanger, the switch valve is arranged on the communicating pipe and used for controlling the on-off of the communicating pipe.
Optionally, the air conditioner includes an indoor unit, the indoor unit includes an electric auxiliary heating device, a wind sweeping blade, an indoor fan and an indoor heat exchanger, the electric auxiliary heating device is disposed between the indoor fan and the wind sweeping blade, and a windward side of the electric auxiliary heating device is perpendicular to a flow direction of the airflow.
The air conditioner comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling assembly and a four-way valve, wherein the compressor is sequentially connected with one port of the four-way valve, the indoor heat exchanger, the throttling assembly, the outdoor heat exchanger and the other port of the four-way valve.
Optionally, the compressor includes an air inlet end and an air outlet end, the four-way valve includes a first port, a second port, a third port and a fourth port, the first port is communicated with the indoor heat exchanger, the second port is communicated with the outdoor heat exchanger, the third port is communicated with the air inlet end, the fourth port is communicated with the air outlet end, when in a heating state, the first port is communicated with the fourth port, the second port is communicated with the third port, when in a cooling state, the second port is communicated with the fourth port, the first port is communicated with the third port, and a first heating module or a second heating module is arranged on a pipeline where the fourth port is communicated with the air outlet end is arranged on a pipeline where the third port is communicated with the air inlet end.
The control method according to the present invention for controlling the above air conditioner includes: starting an air conditioner to obtain the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of an indoor heat exchanger; when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger all meet first preset conditions, the communicating pipe is controlled to be cut off, and the first heating module temperature and the second heating module temperature are synchronously obtained; when the first heating module temperature and the second heating module temperature both meet a second preset condition, controlling the first heating module and the second heating module to be opened, wherein the first preset condition comprises that the exhaust temperature is less than a first preset exhaust temperature, the indoor environment temperature is less than a first preset indoor temperature, the outdoor environment temperature is less than a first preset outdoor temperature, and the indoor heat exchanger tube temperature is less than a first preset tube temperature; the second preset condition comprises that the temperature of the first heating module is lower than the first preset module temperature, and the temperature of the second heating module is lower than the second preset module temperature.
Optionally, the control method further comprises: detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger in real time; when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger meet a third preset condition, controlling the communicating pipe to be communicated; detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the pipe temperature of an indoor heat exchanger, the temperature of a first heating module and the temperature of a second heating module in real time; when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the indoor heat exchanger tube temperature, the first heating module temperature and the second heating module temperature meet a fourth preset condition, at least one of the first heating module and the second heating module is controlled to be turned off, and the indoor fan is turned on, wherein the third preset condition comprises that the exhaust temperature is greater than or equal to a second preset exhaust temperature, the indoor environment temperature is greater than or equal to a second preset indoor temperature, the outdoor environment temperature is greater than or equal to a second preset outdoor temperature, and the indoor heat exchanger tube temperature is greater than or equal to at least one of the second preset tube temperatures, the fourth preset condition comprises that the exhaust temperature is greater than or equal to a third preset exhaust temperature, the indoor environment temperature is greater than or equal to a third preset indoor temperature, the outdoor environment temperature is greater than or equal to a third preset outdoor temperature, and the indoor heat exchanger tube temperature is greater than or equal to a third preset tube temperature, the first heating module temperature is greater than or equal to a third preset heating module temperature, and the second heating module temperature is greater than or equal to at least one of the fourth preset tube temperature, the third preset exhaust temperature is greater than or equal to the third preset tube temperature, and the outdoor temperature is greater than or equal to the third preset tube temperature, and the preset tube temperature is greater than or equal to the third preset tube temperature, and the indoor environment temperature.
The control method according to the present invention for controlling the above air conditioner includes: starting an air conditioner to obtain the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of an indoor heat exchanger; when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the temperature of the indoor heat exchanger tube all meet a first preset condition, the communicating tube is controlled to be cut off.
Optionally, the control method further includes: detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger in real time; when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the indoor heat exchanger tube temperature meet a third preset condition, the communicating pipe is controlled to be communicated, wherein the third preset condition comprises at least one of the exhaust temperature being more than or equal to the second preset exhaust temperature, the indoor environment temperature being more than or equal to the second preset indoor temperature, the outdoor environment temperature being more than or equal to the second preset outdoor temperature and the indoor heat exchanger tube temperature being more than or equal to the second preset tube temperature.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic view of an air conditioner according to an embodiment of the present invention;
fig. 2 is a sectional view of a first heating module and a second heating module of an air conditioner according to an embodiment of the present invention;
fig. 3 is a plan view of a first heating module and a second heating module of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a flow chart of a control method according to some embodiments of the invention;
FIG. 5 is another flow chart of a control method according to some embodiments of the invention.
Description of the drawings:
in the air-conditioner 1, a heat exchanger is arranged,
the heating device comprises a compressor 10, an air inlet end 10a, an air outlet end 10b, a first heating module 20, a heat exchange tube 22, a heating body 23, a heat conduction layer 24, an insulating layer 25, a first temperature sensor 26, a second heating module 30, a second temperature sensor 31, an indoor heat exchanger 40, a first sub heat exchanger 41, a second sub heat exchanger 42, a sweeping blade 44, an electric auxiliary heating device 45, an outdoor heat exchanger 50, an outdoor fan blade 51, a four-way valve 60, a first port 60a, a second port 60b, a third port 60c, a fourth port 60d, a throttling device 70 and an on-off valve 80.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
As shown in fig. 1, an air conditioner 1 according to an embodiment of the present invention includes: the heating system comprises a compressor 10, an indoor heat exchanger 40, an outdoor heat exchanger 50, a four-way valve 60, a first heating module 20, a second heating module 30 and a throttling device 70.
For unfolding, the compressor 10, the four-way valve 60, the indoor heat exchanger 40, the throttling device 70 and the outdoor heat exchanger 50 are sequentially communicated, and the compressor 10 comprises an air inlet end 10a and an air outlet end 10b; the first heating module 20 comprises a first air inlet and a first air outlet, and the first air outlet is connected with the air inlet end 10 a; the second heating module 30 comprises a second air inlet and a second air outlet, and the second air inlet is connected with the air exhaust end 10b; the four-way valve 60 includes a first port 60a, a second port 60b, a third port 60c, and a fourth port 60d, the first port 60a being communicated with the indoor heat exchanger 40, the second port 60b being communicated with the outdoor heat exchanger 50, the third port 60c being communicated with a first air inlet, and the fourth port 60d being communicated with a second air outlet.
In the heating state, the first port 60a communicates with the fourth port 60d, and the second port 60b communicates with the third port 60c, and in the cooling state, the second port 60b communicates with the fourth port 60d, and the first port 60a communicates with the third port 60 c.
That is, during cooling, the refrigerant in the outdoor heat exchanger 50 is in a high-temperature and high-pressure state, and releases heat to the outdoor air, and the refrigerant in the indoor heat exchanger 40 is in a low-temperature state, and absorbs heat of the indoor air to lower the indoor temperature; during heating, the high-temperature and high-pressure refrigerant flows out of the compressor 10 and enters the indoor heat exchanger 40 to be condensed and released, so that the indoor temperature rises, the liquid refrigerant condensed by the indoor heat exchanger 40 continues to be throttled by the throttling device 70 to become a low-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant enters the outdoor heat exchanger 50, and the refrigerant returns to the compressor 10 after being evaporated and absorbed heat.
Therefore, during heating, the refrigerant entering the compressor 10 through the air inlet end 10a can be heated by the first heating module 20, and the refrigerant of low temperature and low pressure is subjected to preliminary warming, so that the temperature of the refrigerant entering the compressor 10 is raised, and the time for the compressor 10 to compress the refrigerant of low temperature and low pressure into the refrigerant of high temperature and high pressure is shortened, and the refrigerant flowing out through the air outlet end 10b can be further heated by the second heating module 30, so that the refrigerant of high temperature and high pressure is further warmed, and the temperature of the air outlet of the compressor 10 is raised, so that on the premise of ensuring the temperature of the refrigerant supplied to the indoor heat exchanger 40, the compression time of the compressor 10 is shortened, and a quick heating effect of the air conditioner 1 in a startup stage in a low-temperature environment is achieved.
According to the air conditioner 1 provided by the embodiment of the invention, the refrigerant entering the compressor 10 and flowing out of the compressor 10 can be heated through the first heating module 20 and the second heating module 30, so that the rising rate of the temperature of the indoor heat exchanger 40 is increased, the temperature of the indoor heat exchanger 40 reaches the condition that an indoor fan is started as soon as possible, hot air is sent to the indoor space, and the heating comfort of a user in the initial stage of starting in cold weather is improved.
As shown in fig. 2 and 3, according to the air conditioner 1 of the embodiment of the present invention, each of the first and second heating modules 20 and 30 includes a case, a heat exchange pipe 22, and at least one heat generating body 23.
Specifically, the installation cavity is injectd to the casing, and the refrigerant passageway is injectd to heat exchange tube 22 in locating the installation cavity in the heat exchange tube 22, and the installation cavity is located to heat-generating body 23. The refrigerant channel is used for allowing a refrigerant to flow through for heat exchange, so that the temperature of the refrigerant is increased, and the heating element 23 is used for heating the heat exchange tube 22.
That is, in the heat exchange tube 22 connected to the air inlet end 10a of the compressor 10, the low-temperature and low-pressure refrigerant flowing in through the outdoor heat exchanger 50 flows into the compressor 10 through the refrigerant channel, and when the low-temperature and low-pressure refrigerant is in the heat exchange tube 22, the refrigerant contacts with the tube wall of the heat exchange tube 22 to exchange heat, so that the temperature of the refrigerant is raised; in the heat exchange tube 22 connected to the exhaust end 10b of the compressor 10, the high-temperature and high-pressure refrigerant flowing out of the exhaust end 10b of the compressor 10 enters the indoor heat exchanger 40 through the refrigerant channel, and when flowing through the heat exchange tube 22, the high-temperature and high-pressure refrigerant contacts with the tube wall of the heat exchange tube 22 to perform heat exchange, thereby further increasing the temperature of the refrigerant.
In some embodiments, the heating body 23 includes one, and one heating body 23 is provided at the left or right side of the heat exchanging pipe 22.
As shown in fig. 2 and 3, the heating body 23 includes two, and the two heating bodies 23 are respectively positioned at both sides of the heat exchanging pipe 22 and spaced apart from the heat exchanging pipe 22. This arrangement allows for more uniform heat transfer across the heat exchanger than if the heat exchange tubes 22 were in direct contact with the heat source. The heating element 23 includes an electric heating rod, and the heating element 23 may be an electromagnetic generator.
As shown in fig. 2 and 3, the heat exchange tube 22 is configured as a straight extending tube, in other embodiments, the heat exchange tube 22 may also be configured as a curved extending tube, so as to suitably prolong the time period for the refrigerant to flow through the heat exchange tube 22, thereby further increasing the temperature of the refrigerant.
In some embodiments, the heating element 23 includes a resistance wire wound around the heat exchange tube 22 to heat the heat exchange tube 22.
In some embodiments, the first and second heating modules 20 and 30 further comprise a thermally conductive layer 24 and an insulating layer 25, the thermally conductive layer 24 filling the mounting cavity, the insulating layer 25 surrounding the housing. The heat conductive layer 24 serves to transfer heat to the heat exchange tube 22, thereby making heat exchange between the heat exchange tube 22 and the heat generating body 23 more uniform.
In some embodiments, the first temperature sensor 26 is disposed on the outer side of the housing of the first heater module 20, and the second temperature sensor 31 is disposed on the outer side of the housing of the second heater module 30. The first temperature sensor 26 is used to detect the temperature of the first heater module 20 and substantially detect the temperature of the heat exchange tube 22, and the second temperature sensor 31 is used to detect the temperature of the second heater module 30 and substantially detect the temperature of the heat exchange tube 22, so that the first temperature sensor 26 and the second temperature sensor 31 can feed back the temperature to the main control unit of the air conditioner 1 to adjust the temperatures of the first heater module 20 and the second heater module 30.
In this case, the first and second heating modules 20, 30 are controlled independently, i.e., the turning on and off of the first heating module 20 does not affect the turning on and off of the second heating module 30.
As shown in fig. 2 and 3, the first and second heating modules 20 and 30 are disposed in parallel and the housings are connected to each other, so that the assembly of the first and second heating modules 20 and 30 to the compressor 10 can be simplified.
As shown in fig. 1, the air conditioner 1 according to the embodiment of the present invention further includes a switching valve 80 and a communication pipe, the indoor heat exchanger 40 includes a first sub heat exchanger 41 and a second sub heat exchanger 42 connected in parallel, the second sub heat exchanger 42 is connected in series with the communication pipe, the communication pipe is disposed between the four-way valve 60 and the second sub heat exchanger 42, the switching valve 80 is disposed on the communication pipe, and the switching valve 80 is used for controlling on/off of the communication pipe. The first sub heat exchanger 41 and the second sub heat exchanger 42 are connected in parallel, so that the refrigerant entering the indoor heat exchanger 40 can be respectively distributed in the first sub heat exchanger 41 and the second sub heat exchanger 42, and the resistance of the refrigerant flowing can be reduced while the heat exchange capability of the indoor heat exchanger 40 can be improved.
That is to say, when the air conditioner 1 is just started up after heating, the communicating pipe is controlled to be closed by the switch valve 80 according to the control condition, so that the refrigerant flowing out through the exhaust end 10b of the compressor 10 only flows through the first sub heat exchanger 41 and does not flow through the second sub heat exchanger 42, thereby reducing the flow of the refrigerant, reducing the flow loss, reducing the heat loss, increasing the temperature rise rate of the pipe temperature of the indoor heat exchanger 40, enabling the pipe temperature of the indoor heat exchanger 40 to meet the starting condition of the indoor fan as soon as possible, providing heat for the indoor, and improving the experience of a user in the initial starting up stage.
After the air conditioner 1 operates for a period of time, the switching valve 80 controls the communicating pipe to be communicated according to the control condition, so that the refrigerant flowing out of the exhaust end 10b of the compressor 10 is distributed in the first sub heat exchanger 41 and the second sub heat exchanger 42, thereby increasing the heat exchange area of the indoor heat exchanger 40 and ensuring the heating capacity of the air conditioner 1.
Therefore, when the air conditioner 1 is just started up during heating, the communicating pipe is controlled to be closed through the switch valve 80 according to the control conditions, so that the refrigerant flowing out from the exhaust end 10b of the compressor 10 only flows through the first sub heat exchanger 41 and does not flow through the second sub heat exchanger 42, and meanwhile, the first heating module 20 and the second heating module 30 are controlled to be opened for heating, so that the temperature rise rate of the indoor heat exchanger 40 of the air conditioner 1 can be jointly increased, and the indoor heat exchanger 40 can meet the opening condition of an indoor fan as soon as possible.
The switch valve 80 includes a two-position two-way valve, which may be pneumatically controlled, electrically controlled, normally open, or normally closed.
In some embodiments, as shown in fig. 1, the air conditioner 1 includes an indoor unit, the indoor unit includes an electric auxiliary heating device 45, a wind sweeping blade 44, an indoor fan, and an indoor heat exchanger 40, the electric auxiliary heating device 45 is disposed between the indoor fan and the wind sweeping blade 44, and the windward side of the electric auxiliary heating device is perpendicular to the airflow direction. The air conditioner 1 further includes an outdoor unit including outdoor unit blades 51 and an outdoor heat exchanger 50.
The wind sweeping blades 44 are arranged at the air outlet of the indoor unit of the air conditioner and are responsible for the distribution of the wind outlet direction; the electric auxiliary heating device 45 is arranged between the indoor fan and the wind sweeping blades 44 and is close to the air outlet in the air duct, the air speed is high, the air quantity is large and concentrated, the heat exchange performance of the electric auxiliary heating device 45 on air flow can be fully exerted, in addition, the windward side of the electric auxiliary heating device 45 is perpendicular to the air flow direction, the air flow can be fully released from the surface of the electric auxiliary heating device 45, and the heat exchange effect is enhanced.
The electric auxiliary heating device 45 is an electric auxiliary heating PTC3, and can exchange heat for air flow passing through the electric auxiliary heating PTC3, the electric auxiliary heating PTC3 comprises electric auxiliary heating pieces 31, the electric auxiliary heating pieces 31 are arranged into a zigzag space structure, and the electric auxiliary heating pieces 31 are in a zigzag shape, namely, the side surfaces of the electric auxiliary heating pieces 31 are in a zigzag shape, so that the side surface area of the electric auxiliary heating pieces 31 can be further increased, and the heat exchange effect of the electric auxiliary heating pieces 31 is further enhanced.
In some embodiments, the electric auxiliary heating device 45 is made of semiconductor heating ceramic, that is, the electric auxiliary heating PTC3 in this embodiment is a PTC with semiconductor heating ceramic, and the surface temperature of the PTC is much lower than that of the electric auxiliary heating device 45 of the electric heating pipe, so that the safety of the indoor unit during abnormal operation can be greatly improved.
As shown in fig. 4, a control method according to an embodiment of the present invention, for controlling the air conditioner 1 described above, includes:
s1: starting the air conditioner 1 to obtain the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger 40;
s2: when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the tube temperature of the indoor heat exchanger 40 all meet a first preset condition, controlling the communicating tube to be cut off, and synchronously acquiring the temperature of the first heating module 20 and the temperature of the second heating module 30;
s3: and when the temperature of the first heating module 20 and the temperature of the second heating module 30 both meet a second preset condition, controlling the first heating module 20 and the second heating module 30 to be started.
The first preset condition includes that the exhaust temperature is lower than a first preset exhaust temperature, the indoor environment temperature is lower than a first preset indoor temperature, the outdoor environment temperature is lower than a first preset outdoor temperature, and the tube temperature of the indoor heat exchanger 40 is lower than a first preset tube temperature.
The second preset condition includes that the temperature of the first heating module 20 is less than the first preset mold temperature, and the temperature of the second heating module 30 is less than the second preset mold temperature.
The exhaust temperature is the exhaust temperature of the compressor 10, the tube temperature of the indoor heat exchanger 40 is the temperature of the front-stage pipeline after the first sub heat exchanger 41 and the second sub heat exchanger 42 of the indoor heat exchanger 40 are merged or branched, the temperature of the first heating module 20 is measured by the first temperature sensor 26 provided on the first heating module, and the temperature of the second heating module 30 is measured by the second temperature sensor 31 provided on the second heating module 30.
That is to say, the exhaust temperature is less than the first preset exhaust temperature, and the indoor ambient temperature is less than the first preset indoor temperature, and the outdoor ambient temperature is less than the first preset outdoor temperature, and the pipe temperature of the indoor heat exchanger 40 is less than the first preset pipe temperature and is satisfied simultaneously, the communicating pipe is controlled to be cut off, so that the refrigerant only flows through the first sub-heat exchanger 41, the indoor heat exchanger 40 is rapidly heated, and the communicating pipe is controlled to be cut off as long as the first preset condition is satisfied.
Meanwhile, when the exhaust temperature is less than the first preset exhaust temperature, the indoor environment temperature is less than the first preset indoor temperature, the outdoor environment temperature is less than the first preset outdoor temperature, the tube temperature of the indoor heat exchanger 40 is less than the first preset tube temperature, the temperature of the first heating module 20 is less than the first preset die temperature, and the temperature of the second heating module 30 is less than the second preset die temperature, the first heating module 20 and the second heating module 30 are controlled to be opened, the first preset condition and the second preset condition are required to be met at the same time, and the first heating module 20 and the second heating module 30 are controlled to be opened.
The first embodiment is as follows: the air conditioner 1 is started, the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the pipe temperature of the indoor heat exchanger 40, the temperature of the first heating module 20 and the temperature of the second heating module 30 are obtained, and when the first preset condition is met and the second preset condition is not met, only the communicating pipe is controlled to be cut off, so that the refrigerant only flows through the first sub-heat exchanger 41, and the first heating module 20 and the second heating module 30 are not started.
Example two: the air conditioner 1 is started, the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the pipe temperature of the indoor heat exchanger 40, the temperature of the first heating module 20 and the temperature of the second heating module 30 are obtained, when the first preset condition is not met and the second preset condition is met, the communicating pipe is conducted, and the first heating module 20 and the second heating module 30 are not opened.
According to the control method of the embodiment of the invention, when the air conditioner 1 is just started up for heating, the actually measured parameter is compared with the first preset condition and the second preset condition, and when the first preset condition is met, the communicating pipe is controlled to be cut off through the switch valve 80, so that the refrigerant flowing out from the exhaust end 10b of the compressor 10 only flows through the first sub heat exchanger 41 and does not flow through the second sub heat exchanger 42; when the first preset condition and the second preset condition are met, the switching valve 80 controls the communicating pipe to be cut off and simultaneously controls the first heating module 20 and the second heating module 30 to be opened for heating, so that the temperature rise rate of the pipe temperature of the indoor heat exchanger 40 of the air conditioner 1 can be jointly improved, the air conditioner 1 can be flexibly controlled according to measured actual parameters, and the pipe temperature of the indoor heat exchanger 40 can meet the opening condition of an indoor fan as soon as possible.
In some embodiments, as shown in fig. 5, the control method further includes:
s4: detecting the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature, and the tube temperature of the indoor heat exchanger 40 in real time;
s5: when the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature and the tube temperature of the indoor heat exchanger 40 satisfy a third preset condition, controlling the communicating tube to be conducted;
s6: detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the pipe temperature of the indoor heat exchanger 40, the temperature of the first heating module 20 and the temperature of the second heating module 30 in real time;
s7: when the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature, the tube temperature of the indoor heat exchanger 40, the temperature of the first heating module 20 and the temperature of the second heating module 30 meet a fourth preset condition, at least one of the first heating module 20 and the second heating module 30 is controlled to be turned off, and the indoor fan is turned on.
Wherein the third preset condition includes at least one of the exhaust temperature being greater than or equal to the second preset exhaust temperature, the indoor ambient temperature being greater than or equal to the second preset indoor temperature, the outdoor ambient temperature being greater than or equal to the second preset outdoor temperature, and the tube temperature of the indoor heat exchanger 40 being greater than or equal to the second preset tube temperature.
The fourth preset condition includes at least one of the exhaust temperature being equal to or higher than the third preset exhaust temperature, the indoor ambient temperature being equal to or higher than the third preset indoor temperature, the outdoor ambient temperature being equal to or higher than the third preset outdoor temperature, and the tube temperature of the indoor heat exchanger 40 being equal to or higher than the third preset tube temperature, the temperature of the first heating module 20 being equal to or higher than the third preset module temperature, and the temperature of the second heating module 30 being equal to or higher than the fourth preset module temperature.
In addition, the third preset exhaust temperature is greater than the second preset exhaust temperature, the third preset indoor temperature is greater than the second preset indoor temperature, the third preset outdoor temperature is greater than the second preset outdoor temperature, and the third preset pipe temperature is greater than the second preset pipe temperature.
That is, when the third preset condition includes that at least one of the discharge temperature is greater than or equal to the second preset discharge temperature, the indoor ambient temperature is greater than or equal to the second preset indoor temperature, the outdoor ambient temperature is greater than or equal to the second preset outdoor temperature, and the tube temperature of the indoor heat exchanger 40 is greater than or equal to the second preset tube temperature is satisfied, the communicating tube is controlled to be communicated, so that the refrigerant flowing out through the compressor 10 is distributed to the first sub heat exchanger 41 and the second sub heat exchanger 42. And continuously detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the tube temperature of the indoor heat exchanger 40, the temperature of the first heating module 20 and the temperature of the second heating module 30 in real time until at least one of fourth preset conditions is met, and controlling at least one of the first heating module 20 and the second heating module 30 to be turned off, for example, controlling both the first heating module 20 and the second heating module 30 to be turned off.
Example three: the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the tube temperature of the indoor heat exchanger 40 are detected in real time, when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the tube temperature of the indoor heat exchanger 40 meet a third preset condition, the communicating tube is controlled to be communicated, then the temperatures of the four parameters are gradually increased along with the lapse of time, the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the tube temperature of the indoor heat exchanger 40, the temperature of the first heating module 20 and the temperature of the second heating module 30 are detected in real time until a fourth preset condition is met, and the first heating module 20 and the second heating module 30 are controlled to be closed.
According to the air conditioner 1 provided by the embodiment of the invention, after the indoor fan is started, real-time detection is continuously performed until the parameter meets the third preset condition, the connection pipe is controlled to be conducted, so that the refrigerant flowing out of the compressor 10 is distributed to the first sub heat exchanger 41 and the second sub heat exchanger 42, the heat exchange area of the indoor heat exchanger 40 is increased, the heat exchange efficiency of the indoor heat exchanger 40 is improved, after the first sub heat exchanger 41 and the second sub heat exchanger 42 participate in heat exchange, real-time monitoring is continuously performed, and when the parameter meets the fourth preset condition, the first heating module 20 and the second heating module 30 are controlled to be closed, so that the air conditioner 1 can be matched with heating requirements of different time periods, flexible control is realized, and indoor comfort is improved.
The air conditioner 1 according to the embodiment of the present invention includes a compressor 10, an indoor heat exchanger 40, an outdoor heat exchanger 50, a throttling assembly, a four-way valve 60, wherein the compressor 10 is sequentially connected with one port of the four-way valve 60, the indoor heat exchanger 40, the throttling assembly, the outdoor heat exchanger 50, and the other port of the four-way valve 60, and further includes a switch valve 80 and a communication pipe, the indoor heat exchanger 40 includes a first sub heat exchanger 41 and a second sub heat exchanger 42 which are connected in parallel, the second sub heat exchanger 42 is connected in series with the communication pipe, the communication pipe is arranged between the four-way valve 60 and the second sub heat exchanger 42, the switch valve 80 is arranged on the communication pipe, and the switch valve 80 is used for controlling the on-off of the communication pipe.
The first sub heat exchanger 41 and the second sub heat exchanger 42 are connected in parallel, so that the refrigerant entering the indoor heat exchanger 40 can be respectively distributed in the first sub heat exchanger 41 and the second sub heat exchanger 42, the heat exchange capability of the indoor heat exchanger 40 can be improved, and the flowing resistance of the refrigerant can be reduced.
That is to say, when the air conditioner 1 is just started up after heating, the communicating pipe is controlled to be closed by the switch valve 80 according to the control condition, so that the refrigerant flowing out from the exhaust end 10b of the compressor 10 only flows through the first sub heat exchanger 41 and does not flow through the second sub heat exchanger 42, thereby reducing the flow of the refrigerant, reducing the flow loss, reducing the heat loss, increasing the temperature rise rate of the pipe temperature of the indoor heat exchanger 40, and enabling the pipe temperature of the indoor heat exchanger 40 to meet the starting condition of the indoor fan as soon as possible, thereby providing heat for the indoor space, and improving the experience of the user in the initial startup period.
After the air conditioner 1 operates for a period of time, the switching valve 80 controls the communicating pipe to be communicated according to the control condition, so that the refrigerant flowing out of the exhaust end 10b of the compressor 10 is distributed in the first sub heat exchanger 41 and the second sub heat exchanger 42, thereby increasing the heat exchange area of the indoor heat exchanger 40 and ensuring the heating capacity of the air conditioner 1.
In some embodiments, the compressor 10 includes an air inlet 10a and an air outlet 10b, the four-way valve 60 includes a first port 60a, a second port 60b, a third port 60c, and a fourth port 60d, the first port 60a communicates with the indoor heat exchanger 40, the second port 60b communicates with the outdoor heat exchanger 50, the third port 60c communicates with the air inlet 10a, the fourth port 60d communicates with the air outlet 10b, the first port 60a communicates with the fourth port 60d in a heating state, the second port 60b communicates with the third port 60c, the second port 60b communicates with the fourth port 60d in a cooling state, the first port 60a communicates with the third port 60c, and the second heating module 30 is disposed on a pipeline where the third port 60c communicates with the air inlet 10a and the first heating module 20 or the fourth port 60d communicates with the air outlet 10 b.
That is, when the air conditioner 1 is just started up for heating, the communicating pipe is controlled to be closed through the switch valve 80 according to the control condition, so that the refrigerant flowing out through the exhaust end 10b of the compressor 10 only flows through the first sub heat exchanger 41 and does not flow through the second sub heat exchanger 42, and the first heating module 20 or the second heating module 30 is controlled to be opened for heating, so that the temperature rise rate of the tube temperature of the indoor heat exchanger 40 of the air conditioner 1 can be increased together, and the tube temperature of the indoor heat exchanger 40 can meet the opening condition of the indoor fan as soon as possible.
A control method according to an embodiment of the present invention, for controlling the air conditioner 1 described above, includes:
s1: starting the air conditioner 1 to obtain the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger 40; when the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature, and the tube temperature of the indoor heat exchanger 40 all satisfy the first preset condition, the communicating tube is controlled to be closed.
That is to say, the exhaust temperature is less than the first preset exhaust temperature, and the indoor ambient temperature is less than the first preset indoor temperature, and the outdoor ambient temperature is less than the first preset outdoor temperature, and the tube temperature of the indoor heat exchanger 40 is less than the first preset tube temperature while satisfying, the communicating tube is controlled to be cut off, so that the refrigerant flows through only the first sub heat exchanger 41, so that the indoor heat exchanger 40 is rapidly heated up, only the first preset condition needs to be satisfied, that is, the communicating tube is controlled to be cut off, so that the refrigerant flows through only the first sub heat exchanger 41.
In some embodiments, the control method further comprises: detecting the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature, and the tube temperature of the indoor heat exchanger 40 in real time; and when the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature and the tube temperature of the indoor heat exchanger 40 meet a third preset condition, controlling the communicating tube to be communicated, wherein the third preset condition comprises at least one of the exhaust temperature being more than or equal to the second preset exhaust temperature, the indoor ambient temperature being more than or equal to the second preset indoor temperature, the outdoor ambient temperature being more than or equal to the second preset outdoor temperature, and the tube temperature of the indoor heat exchanger 40 being more than or equal to the second preset tube temperature.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (12)

1. An air conditioner, comprising:
a compressor comprising an intake end and a discharge end;
the first heating module comprises a first air inlet and a first air outlet, and the first air outlet is connected with the air inlet end;
the second heating module comprises a second air inlet and a second air outlet, and the second air inlet is connected with the air exhaust end;
the four-way valve comprises a first port, a second port, a third port and a fourth port, the first port is communicated with the indoor heat exchanger, the second port is communicated with the outdoor heat exchanger, the third port is communicated with the first air inlet, the fourth port is communicated with the second air outlet, the first port is communicated with the fourth port when in a heating state, the second port is communicated with the third port, the second port is communicated with the fourth port when in a cooling state, and the first port is communicated with the third port.
2. The air conditioner of claim 1, wherein the first and second heating modules each comprise:
a housing defining a mounting cavity;
the heat exchange tube is arranged in the installation cavity and internally defines a refrigerant channel;
at least one heating element, the heating element is located the installation intracavity.
3. The air conditioner of claim 2, wherein the first and second heating modules further comprise:
the heat conduction layer is filled in the mounting cavity;
the heat-insulating layer wraps the shell.
4. An air conditioner according to claim 3, wherein a first temperature sensor is provided on an outer side of a housing of the first heating module, and a second temperature sensor is provided on an outer side of a housing of the second heating module.
5. The air conditioner according to claim 1, further comprising a switching valve and a communication pipe, wherein the indoor heat exchanger comprises a first sub heat exchanger and a second sub heat exchanger which are connected in parallel, the second sub heat exchanger is connected in series with the communication pipe, the communication pipe is arranged between the four-way valve and the second sub heat exchanger, the switching valve is arranged on the communication pipe, and the switching valve is used for controlling on and off of the communication pipe.
6. The air conditioner according to claim 5, comprising an indoor unit, wherein the indoor unit comprises an electric auxiliary heating device, a wind sweeping blade, an indoor fan and the indoor heat exchanger, the electric auxiliary heating device is arranged between the indoor fan and the wind sweeping blade, and the windward side of the electric auxiliary heating device is perpendicular to the airflow direction.
7. An air conditioner is characterized by comprising a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling component and a four-way valve, wherein the compressor is sequentially connected with one port of the four-way valve, the indoor heat exchanger, the throttling component, the outdoor heat exchanger and the other port of the four-way valve,
the indoor heat exchanger comprises a first sub heat exchanger and a second sub heat exchanger which are connected in parallel, the second sub heat exchanger is connected with the communicating pipe in series, the communicating pipe is arranged between the four-way valve and the second sub heat exchanger, the switch valve is arranged on the communicating pipe, and the switch valve is used for controlling the on-off of the communicating pipe.
8. The air conditioner as claimed in claim 7, wherein the compressor includes an air inlet port and an air outlet port, the four-way valve includes a first port communicating with the indoor heat exchanger, the second port communicating with the outdoor heat exchanger, the third port communicating with the air inlet port, and a fourth port communicating with the air outlet port, the first port and the fourth port communicating with the fourth port in a heating state, the second port and the third port communicating, the second port and the fourth port communicating in a cooling state, the first port and the third port communicating,
and a first heating module is arranged on a pipeline communicated with the air inlet end through the third port or a second heating module is arranged on a pipeline communicated with the exhaust end through the fourth port.
9. A control method for controlling an air conditioner according to any one of claims 1 to 6, comprising:
starting the air conditioner to obtain the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of an indoor heat exchanger;
when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger all meet a first preset condition, controlling a communicating pipe to be cut off, and synchronously acquiring the temperature of a first heating module and the temperature of a second heating module;
when the temperature of the first heating module and the temperature of the second heating module both meet a second preset condition, controlling the first heating module and the second heating module to be started, wherein,
the first preset condition comprises that the exhaust temperature is lower than a first preset exhaust temperature, the indoor environment temperature is lower than a first preset indoor temperature, the outdoor environment temperature is lower than a first preset outdoor temperature, and the pipe temperature of the indoor heat exchanger is lower than the first preset pipe temperature;
the second preset condition comprises that the temperature of the first heating module is lower than a first preset module temperature, and the temperature of the second heating module is lower than a second preset module temperature.
10. The control method according to claim 9, characterized by further comprising:
detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the indoor heat exchanger tube temperature in real time;
when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger meet a third preset condition, controlling the communicating pipe to be communicated;
detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature, the pipe temperature of the indoor heat exchanger, the first heating module temperature and the second heating module temperature in real time;
controlling at least one of the first heating module and the second heating module to be turned off and an indoor fan to be turned on when the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature, the tube temperature of the indoor heat exchanger, the temperature of the first heating module, and the temperature of the second heating module satisfy a fourth preset condition, wherein,
the third preset condition includes at least one of the exhaust temperature being greater than or equal to a second preset exhaust temperature, the indoor ambient temperature being greater than or equal to a second preset indoor temperature, the outdoor ambient temperature being greater than or equal to a second preset outdoor temperature, and the indoor heat exchanger tube temperature being greater than or equal to a second preset tube temperature,
the fourth preset condition includes at least one of the exhaust temperature being greater than or equal to a third preset exhaust temperature, the indoor ambient temperature being greater than or equal to a third preset indoor temperature, the outdoor ambient temperature being greater than or equal to a third preset outdoor temperature, and the tube temperature of the indoor heat exchanger being greater than or equal to a third preset tube temperature, the first heating module temperature being greater than or equal to a third preset mold temperature, and the second heating module temperature being greater than or equal to a fourth preset mold temperature,
the third is predetermine exhaust temperature and is greater than the second is predetermine exhaust temperature, the third is predetermine indoor temperature and is greater than the second is predetermine indoor temperature, the third is predetermine outdoor temperature and is greater than the second is predetermine outdoor temperature, the third is predetermine tub temperature and is greater than the second is predetermine tub temperature.
11. A control method for controlling the air conditioner according to claim 7 or 8, comprising:
starting the air conditioner to obtain the current exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the pipe temperature of the indoor heat exchanger;
and when the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the temperature of the indoor heat exchanger tube all meet a first preset condition, controlling a communicating pipe to be cut off.
12. The control method according to claim 11, characterized by further comprising:
detecting the exhaust temperature, the indoor environment temperature, the outdoor environment temperature and the indoor heat exchanger tube temperature in real time;
controlling the communicating pipe to be conducted when the exhaust temperature, the indoor ambient temperature, the outdoor ambient temperature and the pipe temperature of the indoor heat exchanger satisfy a third preset condition, wherein,
the third preset condition includes at least one of the exhaust temperature being greater than or equal to a second preset exhaust temperature, the indoor ambient temperature being greater than or equal to a second preset indoor temperature, the outdoor ambient temperature being greater than or equal to a second preset outdoor temperature, and the indoor heat exchanger tube temperature being greater than or equal to a second preset tube temperature.
CN202211007404.4A 2022-08-22 2022-08-22 Air conditioner and control method Active CN115371153B (en)

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