CN112539474B - Fresh air conditioning system and control method thereof - Google Patents
Fresh air conditioning system and control method thereof Download PDFInfo
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- CN112539474B CN112539474B CN202011329526.6A CN202011329526A CN112539474B CN 112539474 B CN112539474 B CN 112539474B CN 202011329526 A CN202011329526 A CN 202011329526A CN 112539474 B CN112539474 B CN 112539474B
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- fresh air
- refrigerant
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- conditioning system
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
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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
- F24F11/89—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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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
- F25B39/00—Evaporators; Condensers
Abstract
The invention provides a fresh air conditioning system and a control method thereof, wherein the fresh air conditioning system comprises a fresh air device, an evaporator, a stop valve, a condenser, a compressor and a controller; fresh air device includes: the air conditioner comprises a refrigerant pipeline, a fresh air channel and a plurality of air outlet channels which are sequentially arranged outside the fresh air channel at intervals from inside to outside; each air outlet channel is sequentially communicated with the fresh air channel along the axial direction of the fresh air channel, and the refrigerant pipeline is movably arranged in the fresh air channel along the axial direction of the fresh air channel. And a valve body for controlling the communication position of the fresh air channel and the air outlet channel is arranged on the refrigerant pipeline. According to the fresh air conditioning system provided by the invention, the valve body on the refrigerant pipeline is utilized to control the connection between the fresh air channel and each air outlet channel, so that the fresh air conditioning system can freely control the air outlet range. In addition, the fresh air conditioning system can reduce the temperature of the fresh air blown out through the refrigerant pipeline in summer and can increase the temperature of the fresh air blown out through the refrigerant pipeline in winter, so that the temperature difference between the blown air and the indoor temperature is reduced.
Description
Technical Field
The invention relates to the field of air conditioner refrigeration, in particular to a fresh air conditioning system and a control method thereof.
Background
With the improvement of living standard of people, the air conditioner becomes a necessary electric appliance for modern people at home and in offices, and the air conditioner is used for a long time especially in summer and winter.
The existing fresh air conditioner introduces outdoor air and heat into the room together, and can feel cold air and hot air when standing in front of the air conditioner in summer. In winter, cold air from the outside is introduced into the room, and the user has to choose to disable this function, which makes the user experience poor. Meanwhile, when the fresh air conditioner works, fresh air is directly blown to the indoor directly, and the air outlet range is difficult to freely adjust according to the user requirements.
Disclosure of Invention
The embodiment of the invention provides a fresh air conditioning system and a control method thereof, which are used for reducing the temperature difference between blown air and indoor temperature and simultaneously freely adjusting the air outlet range.
The embodiment of the invention provides a fresh air conditioning system, which comprises:
the fresh air device, the evaporator, the stop valve, the condenser, the compressor and the controller;
the new trend device includes: the fresh air channel is internally provided with a refrigerant pipeline, a fresh air channel and a plurality of air outlet channels which are sequentially arranged at intervals from inside to outside; each air outlet channel is sequentially communicated with the fresh air channel along the axial direction of the fresh air channel, and the refrigerant pipeline is movably arranged in the fresh air channel along the axial direction of the fresh air channel; a valve body for controlling the communication position of the fresh air channel and the air outlet channel is arranged on the refrigerant pipeline;
the refrigerant pipeline, the evaporator, the stop valve, the condenser and the compressor are sequentially connected end to end, and the controller is electrically connected with the evaporator, the stop valve, the condenser and the compressor.
According to a fresh air conditioning system provided by an embodiment of the present invention, the fresh air conditioning system further includes: a temperature sensor; the temperature sensor is positioned between the condenser and the compressor; and the refrigerant pipeline is provided with a heating unit for heating fresh air and the refrigerant pipeline.
According to a fresh air conditioning system provided by an embodiment of the invention, the fresh air device comprises: an inlet channel; the inlet channel is installed on the side wall of the fresh air channel and communicated with the fresh air channel.
According to the fresh air conditioning system provided by one embodiment of the invention, a fan used for fresh air supply or air induction is arranged in the inlet channel and/or the fresh air channel.
According to a fresh air conditioning system provided by an embodiment of the invention, the fresh air device comprises: a support member;
the supporting piece is inserted into the air outlet channels at the same time, and the supporting piece is arranged along the wind direction in the air outlet channels.
According to the fresh air conditioning system provided by one embodiment of the invention, the number of the supporting pieces is multiple, the supporting pieces are arranged at intervals along the circumferential direction of the air outlet channel, and each air outlet channel is divided into multiple channels along the circumferential direction.
According to the fresh air conditioning system provided by one embodiment of the invention, the valve body is sleeved at the first end of the refrigerant pipeline; the second end of the refrigerant pipeline penetrates out of the fresh air channel and is connected with a pushing structure;
wherein the pushing structure comprises: a rack and a motor; the rack is connected to the second end of the refrigerant pipeline, and a gear meshed with the rack is installed on a driving shaft of the motor.
The invention also provides a control method of the fresh air conditioning system, which comprises the following steps:
the controller acquires a control signal and controls the fresh air conditioning system according to the control signal;
if the controller acquires a control signal corresponding to the refrigeration mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant sequentially passes through the condenser, the stop valve and the evaporator and absorbs heat in the fresh air channel;
if the controller acquires the control signal corresponding to the heating mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel and sequentially passes through the evaporator, the stop valve and the condenser.
According to the control method provided by one embodiment of the present invention, if the fresh air conditioning system is provided with a heating unit, if the controller acquires a control signal corresponding to the heating mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel, specifically comprising:
the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel, and the heating unit heats the fresh air and the refrigerant.
According to the control method provided by one embodiment of the present invention, if the fresh air conditioning system is provided with a temperature sensor and the refrigerant pipeline is provided with a heating unit, the controller controls the compressor to compress the refrigerant if the controller acquires a control signal corresponding to the heating mode, so that the refrigerant dissipates heat in the fresh air channel specifically includes:
if the temperature detected by the temperature sensor is higher than a first preset temperature, the heating unit is closed, and heat is dissipated in the fresh air channel only through a refrigerant;
if the temperature detected by the temperature sensor is lower than a first preset temperature and higher than a second preset temperature, the heating unit is started, and fresh air is heated through the refrigerant and the heating unit simultaneously;
if the temperature detected by the temperature sensor is lower than the second preset temperature, the heating unit is started and the power of the heating unit is increased, and the fresh air is heated by the refrigerant and the heating unit simultaneously.
According to the fresh air conditioning system provided by the invention, each air outlet channel is communicated with the fresh air channel along the axial direction of the fresh air channel, the movable refrigerant pipeline is arranged in the fresh air channel, and the valve body on the refrigerant pipeline is used for controlling the connection between the fresh air channel and each air outlet channel, so that the fresh air conditioning system can freely control the air outlet range, and the direct blowing of an air conditioner is avoided. In addition, this new trend air conditioning system can reduce the new trend temperature that blows off through each refrigeration structure of controller cooperation and refrigerant pipeline in summer, and can promote the new trend temperature that blows off through each refrigeration structure of controller cooperation and refrigerant pipeline in winter to reduce the difference in temperature of blowing out and indoor temperature, promote user experience.
Drawings
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 that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fresh air device provided by the present invention;
FIG. 2 is a cross-sectional view of a fresh air device provided by the present invention;
FIG. 3 is a schematic diagram of a fresh air conditioning system provided by the present invention;
FIG. 4 is a schematic structural diagram of the front side of the fresh air conditioning system provided by the present invention;
FIG. 5 is a schematic side view of a fresh air conditioning system according to the present invention;
FIG. 6 is a schematic structural diagram of a refrigerant pipe according to the present invention;
FIG. 7 is a flow chart of a control method of the fresh air conditioning system according to the present invention;
in the figure, 1, a refrigerant pipeline; 11. a first liquid separation head; 12. a second liquid separation head; 13. a first refrigerant main pipe; 14. a second refrigerant main pipe; 15. a refrigerant branch pipe; 16. a fresh air device; 17. an evaporator; 18. a stop valve; 19. a condenser; 20. a compressor; 21. a temperature sensor; 2. a fresh air channel; 3. an air outlet channel; 4. a valve body; 5. an inlet channel; 6. a fan; 7. a support member; 8. a heating unit; 9. a rack; 10. an electric motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a fresh air conditioning system according to an embodiment of the present invention is described below, and the fresh air conditioning system includes: a fresh air device 16, an evaporator 17, a stop valve 18, a condenser 19, a compressor 20 and a controller (not shown).
Wherein, new trend device includes: refrigerant pipeline 1, new trend passageway 2 and a plurality of air-out passageways 3 that set up at the outside of new trend passageway 2 interval in proper order from inside to outside. Each air outlet channel 3 is sequentially communicated with the fresh air channel 2 along the axial direction of the fresh air channel 2. Wherein, refrigerant pipeline 1 is movably installed in fresh air channel 2 along fresh air channel's axial. The refrigerant pipeline 1 is provided with a valve body 4 for controlling the communication position of the fresh air channel and the air outlet channel, and the position of the valve body 4 in the fresh air channel 2 is adjusted by controlling the position of the refrigerant pipeline 1 in the fresh air channel 2, so that the communication position of the fresh air channel 2 and the air outlet channel 3 is controlled. The refrigerant pipeline 1, the evaporator 17, the stop valve 18, the condenser 19 and the compressor 20 are sequentially connected end to end, and the controller is electrically connected with the evaporator 17, the stop valve 18, the condenser 19 and the compressor 20.
Specifically, as shown in fig. 1 and fig. 2, the air outlets of the air outlet channels 3 are located on the same plane. Each air outlet channel 3 is composed of a plurality of layers of gradually expanding pipes which are arranged at intervals from inside to outside. Each air outlet channel 3 is positioned between adjacent divergent tubes, is parallel to each other and coaxially arranged, and is obliquely arranged along the fresh air channel 2. The refrigerant pipeline 1 can move, so that air inlets of different air outlet channels 3 can be opened or closed by the valve body 4 in the moving process, and the air outlet range can be controlled by the position of the valve body 4.
This new trend device is at summer during operation, and new trend 2 introduces the new trend from outdoor, and refrigerant pipeline 1's temperature is less than outdoor temperature, and the new trend is direct to be cooled off through refrigerant pipeline 1 among the new trend 2, and the rethread air-out passageway 3 insufflates indoor. Similarly, when the fresh air device works in winter, fresh air is introduced from the outside through the fresh air channel 2, the temperature of the refrigerant pipeline 1 is higher than the outdoor temperature, the fresh air is heated through the heat radiation of the refrigerant pipeline 1, and then the fresh air is blown into the room through the air outlet channel 3.
In the air supply process, if only the outmost air outlet channel 3 is required to supply fresh air outwards, the refrigerant pipeline 1 can be moved, the valve body 4 is moved between the outmost air outlet channel 3 and the outmost inner layer air outlet channel 3, and then air can be supplied only to the outmost air outlet channel 3. If the fresh air volume needs to be increased (or the air outlet range of the fresh air is adjusted), the valve body 4 can be moved towards the innermost air outlet channel 3 along the fresh air channel 2, and therefore the fresh air can be blown out from the air outlet channels 3. Similarly, if the fresh air volume needs to be reduced, the valve body 4 can be moved towards the air inlet (small diameter end) of the outmost air outlet channel 3 along the fresh air channel 2, so that the blown fresh air can be reduced.
When the fresh air conditioning system is started, the controller controls each structure in the fresh air conditioning system according to the corresponding command.
In the refrigeration mode, the compressor 20 compresses the refrigerant to make the refrigerant become high-temperature high-pressure gas, the refrigerant dissipates heat through the condenser 19, the refrigerant becomes low-temperature low-pressure refrigerant after passing through the stop valve 18, the refrigerant is operated to the indoor-end heat exchanger evaporator 17 to absorb heat for the first time, the refrigerant passes through the indoor-end refrigerant pipeline 1 and absorbs heat for the second time in the fresh air channel 2, and therefore the temperature of the fresh air is reduced.
In the heating mode, the compressor 20 compresses the refrigerant to make the refrigerant become high-temperature high-pressure gas, and the refrigerant passes through the indoor refrigerant pipeline 1 and is radiated once in the fresh air channel 2, so that the temperature of the fresh air is raised. And then the refrigerant passes through the evaporator 17 for secondary heat dissipation, passes through the stop valve 18, then flows through the outdoor condenser 19 for heat absorption, and completes the primary circulation.
According to the fresh air conditioning system provided by the invention, each air outlet channel is communicated with the fresh air channel along the axial direction of the fresh air channel, the movable refrigerant pipeline is arranged in the fresh air channel, and the valve body on the refrigerant pipeline is used for controlling the connection between the fresh air channel and each air outlet channel, so that the fresh air conditioning system can freely control the air outlet range, and the direct blowing of an air conditioner is avoided. In addition, this new trend air conditioning system can reduce the new trend temperature that blows off through each refrigeration structure of controller cooperation and refrigerant pipeline in summer, and can promote the new trend temperature that blows off through each refrigeration structure of controller cooperation and refrigerant pipeline in winter to reduce the difference in temperature of blowing out and indoor temperature, promote user experience.
As shown in fig. 1 and 2, the fresh air device includes: an inlet channel 5 for outdoor air intake. The inlet channel 5 is arranged on the side wall of the fresh air channel 2, and the inlet channel 5 is communicated with the fresh air channel 2.
According to actual requirements, a fan 6 for supplying or inducing fresh air can be arranged in the inlet channel 5, the fresh air channel 2 or in the inlet channel 5 and the fresh air channel 2 simultaneously. In this embodiment, the fan 6 is a cross flow fan, and the fan 6 is installed in the inlet passage 5.
As shown in fig. 1 and 2, in order to fix each air outlet channel 3 for separation, the fresh air device includes: a support 7. Each support piece 7 is inserted in a plurality of air-out passageways 3 simultaneously, and support piece 7 sets up along the wind direction in air-out passageway 3 for it is fixed to expand the pipe gradually.
Meanwhile, because the supporting piece 7 is installed in the air outlet channel 3, the number of the supporting piece 7 can be set to be a plurality of, and the specific number can be adjusted as required. A plurality of support pieces 7 are arranged along the circumferential interval of the air outlet channel 3, and each air outlet channel 3 is divided into a plurality of channels along the circumferential direction by the plurality of support pieces 7.
In addition, the valve body 4 can be supported by the supporting members 7, and the valve body 4 is in contact with the end portions of the supporting members 7 and is clamped between the supporting members 7. When the air quantity needs to be controlled, the coolable pipeline 1 can directly move on the supporting piece 7 by matching with the valve body 4.
In this embodiment, the shape of the valve body 4 is adjustable. For example, the valve body 4 may be spherical, and the spherical surface may be used to diffuse the wind around, and the wind is discharged from the outlet of the outlet channel 3, so that the straight blowing characteristic may be changed, and the direct blowing may be avoided. And wind is discharged from the air outlet of the air outlet channel 3 through the spherical surface by a straight line, so that the noise can be reduced to a certain extent.
Because the outdoor temperature is lower in winter, and the temperature of the refrigerant pipeline 1 is not enough to rapidly heat the fresh air, the effect is ensured. And a heating unit 8 for heating the fresh air and the refrigerant pipeline 1 can be arranged on the refrigerant pipeline 1. The heating unit 8 may employ an electromagnetic heating coil. Under winter working conditions, fresh air is introduced from the outside through the fresh air channel 2, is heated by the heat radiation of the refrigerant pipeline 1 and the heating unit 8, and is blown into the room through the air outlet channel 3.
In addition, as shown in fig. 3, the fresh air conditioning system further includes: a temperature sensor 21. A temperature sensor 21 is located between the condenser 19 and the compressor 20. The temperature sensor 21 is used to measure the outdoor temperature. If the temperature detected by the temperature sensor 21 is higher than a first preset temperature, for example, higher than 30 ℃, the heating unit is turned off, and heat is dissipated in the fresh air channel 2 only through the refrigerant. If the temperature detected by the temperature sensor 21 is lower than the first preset temperature and higher than the second preset temperature, for example, higher than 10 ℃ and lower than 30 ℃, the heating unit 8 is turned on, and the fresh air is heated by the refrigerant and the heating unit 8 at the same time. If the temperature detected by the temperature sensor 21 is lower than a second preset temperature, for example, lower than 10 ℃, the power of the heating unit 8 is turned on and increased, and the fresh air is heated by the refrigerant and the heating unit 8 at the same time.
The first end of the refrigerant pipeline 1 is sleeved with a valve body 4. The second end of the refrigerant pipeline 1 penetrates out of the fresh air channel 2 and is connected with a pushing structure. In the use, can be directly through promoting the position of structure control refrigerant pipeline 1 in new trend passageway 2 to can be convenient for adjust the air-out scope.
Wherein, promote the structure and include: a rack 9 and a motor 10. Rack 9 is connected at the second end of refrigerant pipeline 1, installs the gear with rack 9 meshing on the drive shaft of motor 10, utilizes motor 10 control rack 9 to remove, and then can directly control the air-out scope of new trend device.
Adopt the in-process that promotes structure control air supply, if only need outermost air-out passageway 3 to send the new trend outward, usable motor 10 drive rack 9 removes refrigerant pipeline 1, moves valve body 4 between outermost air-out passageway 3 and the one deck air-out passageway 3 of outermost inboard, and then can only be at the air inlet of outermost air-out passageway 3. If the fresh air volume needs to be increased (or the air outlet range of the fresh air is adjusted), the motor 10 can be used for driving the rack 9 to move the refrigerant pipeline 1, and the valve body 4 can move towards the innermost air outlet channel 3 along the fresh air channel 2, so that the fresh air can be blown out from the air outlet channels 3. Similarly, if the fresh air volume needs to be reduced, the refrigerant pipeline 1 can be moved by the motor 10, and the valve body 4 is moved towards the air inlet (small diameter end) of the outmost air outlet channel 3 along the fresh air channel 2, so that the blown fresh air can be reduced.
As shown in fig. 6, the refrigerant pipe 1 includes: the refrigerant branching unit comprises a first liquid dividing head 11, a second liquid dividing head 12, a first refrigerant main pipe 13, a second refrigerant main pipe 14 and a plurality of refrigerant branch pipes 15. First ends of the refrigerant branch pipes 15 are communicated with the first refrigerant main pipe 13 through the first liquid separation head 11, and second ends of the refrigerant branch pipes 15 are communicated with the second refrigerant main pipe 14 through the second liquid separation head 12. The valve body 4 and the heating unit 8 are installed on the refrigerant branch pipe 15, and the rack 9 is located on the second refrigerant main pipe 14. The specific positions of the components in the refrigerant pipeline 1 can be adjusted according to actual conditions.
According to the fresh air conditioning system provided by the invention, each air outlet channel is communicated with the fresh air channel along the axial direction of the fresh air channel, the movable refrigerant pipeline is arranged in the fresh air channel, and the valve body on the refrigerant pipeline is used for controlling the connection between the fresh air channel and each air outlet channel, so that the fresh air conditioning system can freely control the air outlet range, and the direct blowing of an air conditioner is avoided. In addition, this new trend air conditioning system can reduce the new trend temperature that blows off through each refrigeration structure of controller cooperation and refrigerant pipeline in summer, and can promote the new trend temperature that blows off through each refrigeration structure of controller cooperation and refrigerant pipeline in winter to reduce the difference in temperature of blowing out and indoor temperature, promote user experience.
The embodiment of the present invention further provides a control method for a fresh air conditioning system, and the structure of the fresh air conditioning system can refer to the description of the above-mentioned characters related to fig. 1 to 6, which is not described herein again.
As shown in fig. 7, the control method includes the steps of:
step S1: the controller obtains the control signal and controls the fresh air conditioning system according to the control signal.
Step S2: if the controller acquires a control signal corresponding to the refrigeration mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant sequentially passes through the condenser, the stop valve and the evaporator and absorbs heat in the fresh air channel.
Step S3: if the controller acquires the control signal corresponding to the heating mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel and sequentially passes through the evaporator, the stop valve and the condenser.
When the fresh air conditioning system is started, the controller controls each structure in the fresh air conditioning system according to the corresponding command.
In a refrigeration mode, the compressor compresses a refrigerant to enable the refrigerant to become high-temperature high-pressure gas, the refrigerant dissipates heat through the condenser, becomes a low-temperature low-pressure refrigerant after passing through the stop valve, runs to the indoor-end heat exchanger evaporator to absorb heat for the first time, and the refrigerant passes through the indoor-end refrigerant pipeline to absorb heat for the second time in the fresh air channel, so that the temperature of the fresh air is reduced. In the heating mode, the compressor compresses the refrigerant to make the refrigerant become high-temperature high-pressure gas, the refrigerant passes through the indoor refrigerant pipeline and is subjected to primary heat dissipation in the fresh air channel, and therefore the temperature of the fresh air is increased. And then the refrigerant passes through the stop valve and then flows through the outdoor condenser to absorb heat, thereby completing the primary circulation.
If the fresh air conditioning system is provided with a heating unit, in the step S3: the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel, and meanwhile, the fresh air and the refrigerant are heated by the heating unit.
If the fresh air conditioning system is provided with the heating unit and the temperature sensor at the same time, in the step S3: the temperature sensor is used for measuring the outdoor temperature at any moment, so that the controller is correspondingly controlled according to the temperature acquired by the temperature sensor. Specifically, if the temperature detected by the temperature sensor is higher than a first preset temperature, for example, higher than 30 ℃, the heating unit is turned off, and heat is dissipated in the fresh air channel only through the refrigerant. If the temperature detected by the temperature sensor is lower than the first preset temperature and higher than the second preset temperature, for example, higher than 10 ℃ and lower than 30 ℃, the heating unit is started, and the fresh air is heated by the refrigerant and the heating unit at the same time. If the temperature detected by the temperature sensor is lower than a second preset temperature, for example, lower than 10 ℃, the heating unit is started and the power of the heating unit is increased, and fresh air is heated by the refrigerant and the heating unit at the same time.
The control method provided by the invention is used for controlling the fresh air conditioning system, and the controller is used for automatically controlling each structure in the fresh air conditioning system, so that the temperature of the fresh air blown out by the fresh air conditioning system can be reduced through the refrigerant pipeline in summer, and can be increased through the refrigerant pipeline and the heating unit in winter, thereby reducing the temperature difference between the blown air and the indoor temperature and improving the user experience.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A fresh air conditioning system, comprising:
the fresh air device, the evaporator, the stop valve, the condenser, the compressor and the controller;
the new trend device includes: the fresh air channel is internally provided with a refrigerant pipeline, a fresh air channel and a plurality of air outlet channels which are sequentially arranged at intervals from inside to outside; each air outlet channel is sequentially communicated with the fresh air channel along the axial direction of the fresh air channel, and the refrigerant pipeline is movably arranged in the fresh air channel along the axial direction of the fresh air channel; a valve body for controlling the communication position of the fresh air channel and the air outlet channel is arranged on the refrigerant pipeline;
the refrigerant pipeline, the evaporator, the stop valve, the condenser and the compressor are sequentially connected end to end, and the controller is electrically connected with the evaporator, the stop valve, the condenser and the compressor.
2. The fresh air conditioning system as recited in claim 1 further comprising: a temperature sensor; the temperature sensor is positioned between the condenser and the compressor; and the refrigerant pipeline is provided with a heating unit for heating fresh air and the refrigerant pipeline.
3. The fresh air conditioning system as recited in claim 1 wherein said fresh air device comprises: an inlet channel; the inlet channel is installed on the side wall of the fresh air channel and communicated with the fresh air channel.
4. The fresh air conditioning system as claimed in claim 3, wherein a fan for supplying or inducing fresh air is disposed in the inlet channel and/or the fresh air channel.
5. The fresh air conditioning system as recited in claim 1 wherein said fresh air device comprises: a support member;
the supporting piece is inserted into the air outlet channels at the same time, and the supporting piece is arranged along the wind direction in the air outlet channels.
6. The fresh air conditioning system as claimed in claim 5, wherein the number of the supporting members is plural, and the plural supporting members are arranged at intervals along the circumferential direction of the air outlet channel to divide each air outlet channel into plural channels along the circumferential direction.
7. The fresh air conditioning system as claimed in claim 1, wherein the valve body is sleeved on a first end of the refrigerant pipeline; the second end of the refrigerant pipeline penetrates out of the fresh air channel and is connected with a pushing structure;
wherein the pushing structure comprises: a rack and a motor; the rack is connected to the second end of the refrigerant pipeline, and a gear meshed with the rack is installed on a driving shaft of the motor.
8. A control method of the fresh air conditioning system according to any one of claims 1 to 7, characterized by comprising the following steps:
the controller acquires a control signal and controls the fresh air conditioning system according to the control signal;
if the controller acquires a control signal corresponding to the refrigeration mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant sequentially passes through the condenser, the stop valve and the evaporator and absorbs heat in the fresh air channel;
if the controller acquires the control signal corresponding to the heating mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel and sequentially passes through the evaporator, the stop valve and the condenser.
9. The control method according to claim 8, wherein if the fresh air conditioning system is provided with a heating unit, if the controller obtains a control signal corresponding to the heating mode, the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel, specifically comprising:
the controller controls the compressor to compress the refrigerant, so that the refrigerant dissipates heat in the fresh air channel, and the heating unit heats the fresh air and the refrigerant.
10. The control method according to claim 8, wherein if the fresh air conditioning system is provided with a temperature sensor and the refrigerant pipeline is provided with a heating unit, the step of controlling the compressor to compress the refrigerant by the controller to dissipate heat of the refrigerant in the fresh air channel if the controller acquires a control signal corresponding to the heating mode specifically comprises:
if the temperature detected by the temperature sensor is higher than a first preset temperature, the heating unit is closed, and heat is dissipated in the fresh air channel only through a refrigerant;
if the temperature detected by the temperature sensor is lower than a first preset temperature and higher than a second preset temperature, the heating unit is started, and fresh air is heated through the refrigerant and the heating unit simultaneously;
if the temperature detected by the temperature sensor is lower than the second preset temperature, the heating unit is started and the power of the heating unit is increased, and the fresh air is heated by the refrigerant and the heating unit simultaneously.
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| CN112781104B (en) * | 2020-12-24 | 2022-04-22 | 珠海格力电器股份有限公司 | Fresh air assembly, air conditioning system and control method of air conditioning system |
| CN113685912B (en) * | 2021-08-02 | 2023-03-21 | 重庆海尔空调器有限公司 | Control method of fresh air conditioner |
| CN114659170B (en) * | 2022-03-28 | 2024-04-26 | 青岛海尔空调器有限总公司 | Method and device for controlling fresh air conditioner, fresh air conditioner and storage medium |
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