CN110260432B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
- Publication number
- CN110260432B CN110260432B CN201910430421.0A CN201910430421A CN110260432B CN 110260432 B CN110260432 B CN 110260432B CN 201910430421 A CN201910430421 A CN 201910430421A CN 110260432 B CN110260432 B CN 110260432B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air
- valve
- fresh air
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- 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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
-
- 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
- F24F13/28—Arrangement or mounting of filters
-
- 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
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
- Air Humidification (AREA)
Abstract
The application discloses an air conditioner and a control method thereof, and relates to the technical field of air conditioners. Wherein, the air conditioner includes: the device comprises a first heat exchanger, a humidifying membrane component, a second heat exchanger, a compressor, a four-way valve, a third heat exchanger and a first throttling component; the compressor, the four-way valve, the third heat exchanger, the first throttling component, the first heat exchanger and the second heat exchanger are sequentially connected and form a heat exchange loop; the humidifying membrane component is arranged between the first heat exchanger and the second heat exchanger. By simultaneously arranging the two heat exchangers on the indoor machine side, heating or refrigerating can be simultaneously realized, so that the heating temperature or refrigerating temperature of the air conditioner is conveniently increased, and the comfort in the heating or refrigerating process is improved. In addition, the humidifying membrane component is arranged between the first heat exchanger and the second heat exchanger, so that the preheating, humidifying and heating processes are realized, the humidifying quantity is effectively improved, the control of the air outlet temperature is facilitated, and the use comfort of the air conditioner is improved.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
Air conditioners often exist during use: the air conditioner has poor comfort in the use process due to the problems of insufficient temperature during refrigeration, insufficient low temperature during refrigeration, influence on refrigeration or heating of the air conditioner during humidification and the like.
In order to improve the comfort of using an air conditioner in daily life, the existing air conditioner is provided with an air conditioning mode for conditioning while heating. However, in the prior art, the influence on the air outlet temperature is large during heating and humidifying, so that the air outlet temperature is low and the comfort is poor.
Disclosure of Invention
The application aims to provide an air conditioner and a control method thereof, which are used for solving the problem of poor comfort caused by the humidification condition of the air conditioner in the prior art.
In a first aspect, an embodiment of the present application provides an air conditioner, including: the device comprises a first heat exchanger, a humidifying membrane component, a second heat exchanger, a compressor, a four-way valve, a third heat exchanger and a first throttling component;
the compressor, the four-way valve, the third heat exchanger, the first throttling component, the first heat exchanger and the second heat exchanger are sequentially connected and form a heat exchange loop;
the humidifying membrane component is arranged between the first heat exchanger and the second heat exchanger.
Further, in a preferred embodiment of the present application, the first heat exchanger and the second heat exchanger are connected through a second throttling component to form a first branch, the first heat exchanger and the second heat exchanger are connected through a first electromagnetic bypass valve to form a second branch, and the first branch is connected in parallel with the second branch;
the heat exchange loop comprises the first branch and the second branch.
Further, in a preferred embodiment of the present application, a second electromagnetic bypass valve is disposed in parallel at the first throttle member.
Further, in a preferred embodiment of the present application, the method further comprises: the device comprises a return air channel and a fresh air channel, wherein a return air fan is arranged in the return air channel, and a fresh air fan is arranged in the fresh air channel;
the first heat exchanger, the humidifying membrane component and the second heat exchanger are all located in the fresh air channel.
Further, in a preferred embodiment of the present application, the method further comprises: the heat exchange core body is provided with a heat exchange cavity,
the fresh air channel and the return air channel are respectively communicated with the heat exchange core body, and the return air of the return air channel and the fresh air of the fresh air channel respectively flow through the heat exchange core body in a positive crossing mode;
the heat exchange core body is positioned at the inlet of the fresh air channel and the outlet of the return air channel;
and the inlet of the return air channel is provided with a first filter screen, and the inlet of the fresh air channel is sequentially provided with a sand prevention screen and a second filter screen.
Further, in a preferred embodiment of the present application, an air valve is disposed on the return air channel or the fresh air channel; and the air return channel is communicated with the fresh air channel and is blocked by opening the air valve.
Further, in a preferred embodiment of the present application, a first interface valve and a second interface valve are sequentially disposed between the first heat exchanger and the first throttling part;
and a third interface valve and a fourth interface valve are sequentially arranged between the second heat exchanger and the four-way valve.
Further, in a preferred embodiment of the present application, the four-way valve includes a D-end, a C-end, an S-end, and an E-end;
the end D is communicated with an exhaust port of the compressor, the end C is communicated with the third heat exchanger, the end S is communicated with an air suction port of the compressor, and the end E is communicated with the second heat exchanger.
In a second aspect, an embodiment of the present application provides a control method for an air conditioner, including the steps of:
controlling the first heat exchanger and the second heat exchanger to heat;
or alternatively, the process may be performed,
controlling the first heat exchanger and the second heat exchanger to refrigerate;
or alternatively, the process may be performed,
controlling heating in the first heat exchanger and controlling the second heat exchanger to refrigerate; or controlling the first heat exchanger to refrigerate and the second heat exchanger to heat.
Further, in a preferred embodiment of the present application, controlling the heating of the first heat exchanger and the second heat exchanger specifically includes:
controlling the end D and the end E of the four-way valve to be communicated, and enabling the refrigerant to flow through the four-way valve from the exhaust port of the compressor to the second heat exchanger for heating;
the refrigerant flows to the first heat exchanger through the first electromagnetic bypass valve to heat.
Further, in a preferred embodiment of the present application, controlling the first heat exchanger and the second heat exchanger to perform refrigeration specifically includes:
controlling the D end and the C end of the four-way valve to be communicated, and enabling the refrigerant to flow through the four-way valve from the exhaust port of the compressor to the third heat exchanger for condensation and heating;
the refrigerant flows through the first throttling component to the first heat exchanger and the second heat exchanger in sequence, and the first heat exchanger and the second heat exchanger are controlled to refrigerate.
Further, in a preferred embodiment of the present application, the first heat exchanger is controlled to heat, and the second heat exchanger is controlled to cool; or controlling the first heat exchanger to refrigerate and the second heat exchanger to heat, comprising the following steps:
the D end and the C end of the four-way valve are controlled to be communicated, and the second electromagnetic bypass valve is controlled to be opened;
refrigerant flows through the four-way valve from the exhaust port of the compressor to the third heat exchanger for condensing and heating;
the refrigerant enters the first refrigerator for heating, and flows through the second throttling part and enters the second heat exchanger for refrigerating.
Further, in a preferred embodiment of the present application, the method further comprises the steps of: controlling the humidification of the humidification membrane component.
Further, in a preferred embodiment of the present application, the method further comprises the steps of: the air inlet mode is controlled, and the method specifically comprises the following steps:
opening a return air fan and a fresh air fan, closing an air valve, discharging return air to the outside through a return air channel, exchanging heat in the fresh air channel, and entering a room; or alternatively, the process may be performed,
opening the fresh air fan and the air valve, closing the return air fan, enabling return air to enter the fresh air channel through the return air channel at the air valve switch, enabling return air and fresh air to be mixed in the fresh air channel and then enter a room after heat exchange.
Further, in a preferred embodiment of the present application, the air return fan and the fresh air fan are turned on, the air valve is turned off, the return air passes through the return air channel and is discharged to the outside, and the fresh air exchanges heat in the fresh air channel and enters the room, and the present application further comprises:
the return air and the fresh air exchange heat at the heat exchange core body.
The embodiment of the application provides an air conditioner and a control method thereof.A compressor, a four-way valve, a third heat exchanger and a first throttling component are arranged at the outdoor unit side, and a first heat exchanger, a humidifying membrane component and a second heat exchanger are arranged at the indoor unit side; the indoor unit and each part of the outdoor unit are connected to form a circulation loop to realize refrigeration and heating, and simultaneously, the mode of simultaneously arranging two heat exchangers on the indoor unit side can realize heating or refrigeration at the same time, thereby being convenient for improving the heating temperature or the refrigerating temperature of the air conditioner and improving the comfort in the heating or refrigerating process. In addition, will the humidification membrane part set up in between first heat exchanger with the second heat exchanger, first heat exchanger can be as the pre-heater of first step heating, the humidification membrane part carries out the humidification, the second heat exchanger heats once more, this kind of preheating, humidification, the process of heating do benefit to the control air-out temperature when effectively improving the humidification volume to promote the use travelling comfort of air conditioner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present application;
FIG. 2 is a diagram showing a refrigeration/cooling/dehumidification cycle of an air conditioner according to an embodiment of the present application;
FIG. 3 is a heat/warm-up humidification cycle diagram of an air conditioner according to an embodiment of the present application;
FIG. 4 is a constant temperature dehumidification cycle diagram of an air conditioner according to an embodiment of the present application;
FIG. 5 is a constant temperature humidification cycle diagram provided by an embodiment of the present application;
FIG. 6 is a diagram illustrating a full fresh air mode according to an embodiment of the present application;
fig. 7 is a schematic diagram of a wind mixing mode according to an embodiment of the application.
Reference numerals:
1. a first filter screen; 2. a second heat exchanger; 3. a humidification membrane member; 4. a first heat exchanger; 5. an air valve; 6. a housing; 7. a heat exchange core; 8. a second filter screen; 9. a sand prevention net; 10. a return air blower; 11. an electric controller; 12. fresh air blower; 13. a first interface valve; 14. a first electromagnetic bypass valve; 15. a second throttle member; 16. a third interface valve; 17. a high-efficiency filter screen; 18. a fourth interface valve; 19. a second interface valve; 20. a first throttle member; 21. a second electromagnetic bypass valve; 22. a third heat exchanger; 23. an outdoor fan; 24. a four-way valve; 25. a compressor.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 1 to 7, an air conditioner according to an embodiment of the present application includes: a first heat exchanger 4, a humidifying membrane unit 3, a second heat exchanger 2, a compressor 25, a four-way valve 24, a third heat exchanger 22 and a first throttling unit 20; the compressor 25, the four-way valve 24, the third heat exchanger 22, the first throttling part 20, the first heat exchanger 4 and the second heat exchanger 2 are sequentially connected and form a heat exchange loop; the humidifying membrane component 3 is arranged between the first heat exchanger 4 and the second heat exchanger 2. The outdoor unit side of the air conditioner provided by the embodiment of the application comprises a compressor 25, a four-way valve 24, a third heat exchanger 22 and a first throttling part 20, and the indoor unit side comprises a first heat exchanger 4, a humidifying membrane part 3 and a second heat exchanger 2; the indoor unit and each part of the outdoor unit are connected to form a circulation loop to realize refrigeration and heating, and simultaneously, the mode of simultaneously arranging two heat exchangers on the indoor unit side can realize heating or refrigeration at the same time, thereby being convenient for improving the heating temperature or the refrigerating temperature of the air conditioner and improving the comfort in the heating or refrigerating process. In addition, with humidification membrane part 3 set up in between first heat exchanger 4 with second heat exchanger 2, first heat exchanger 4 can be as the pre-heater of first step heating, humidification membrane part 3 carries out the humidification, second heat exchanger 2 heats once more, and this kind of preheating, humidification, the process of heating do benefit to the control air-out temperature when effectively improving the humidification volume to promote the use travelling comfort of air conditioner.
In the air conditioner according to an embodiment of the present application, as shown in fig. 1, the first heat exchanger 4 and the second heat exchanger 2 are connected through a second throttling component 15 to form a first branch, the first heat exchanger 4 and the second heat exchanger 2 are connected through a first electromagnetic bypass valve 14 to form a second branch, and the first branch is connected in parallel with the second branch; the heat exchange loop comprises the first branch and the second branch. In the circulation process, the working states of the first heat exchanger 4 and the second heat exchanger 2 can be adjusted by selecting to pass through the first branch or the second branch.
In this embodiment, the first throttle member 20 is provided with a second electromagnetic bypass valve 21 in parallel. By controlling the states of the first electromagnetic bypass valve 14 and the second electromagnetic bypass valve 21, the first heat exchanger 4 and the second heat exchanger 2 can be respectively used as an evaporator and a condenser to realize the evaporating or condensing function, namely when one heat exchanger absorbs heat, the other heat exchanger releases heat, and the energy is kept basically constant; the second function is that the first heat exchanger 4 and the second heat exchanger 2 can simultaneously realize the evaporation or condensation function, namely, the two heat exchangers absorb heat or release heat simultaneously; thereby realizing various treatment processes for the air. Such treatments include refrigeration, cooling and dehumidification, constant temperature dehumidification, heating and humidification, constant temperature humidification, etc.
As shown in fig. 6 to 7, in the air conditioner provided in an embodiment of the present application, further includes: the indoor unit comprises a return air channel and a fresh air channel, wherein the return air channel is internally provided with a return air fan 10, and the fresh air channel is internally provided with a fresh air fan 12; the first heat exchanger 4, the humidifying membrane component 3 and the second heat exchanger 2 are all positioned in the fresh air channel.
Wherein, in an embodiment, further comprises: the heat exchange core 7 is connected with the electric controller 11, the fresh air channel and the return air channel are respectively communicated with the heat exchange core 7, and the return air of the return air channel and the fresh air of the fresh air channel respectively flow through the heat exchange core 7 in a positive crossing mode; the heat exchange core 7 is positioned at the inlet of the fresh air channel and the outlet of the return air channel; and the inlet of the return air channel is provided with a first filter screen 1, the inlet of the fresh air channel is sequentially provided with a sand prevention screen 9, a second filter screen 8 and a high-efficiency filter screen 17. Wherein, the first filter screen 1 and the second filter screen 8 are coarse filter screens. The air conditioner of the present embodiment is provided with a heat exchange core 7 for recovering heat or cold of return air. The arrangement position of the heat exchange core 7 is in an air channel section after fresh air and return air are subjected to rough filtration, so that dust accumulation and dust accumulation in the heat exchange core 7 are less, and the service life is longer.
In order to further cool or heat indoor air, in the air conditioner provided by an embodiment of the present application, an air valve 5 is disposed on the return air channel or the fresh air channel; by opening the air valve 5, the return air channel is communicated with the fresh air channel and is blocked. As shown in fig. 6, in the closed state of the air valve 5, the return air channel and the fresh air channel are two independent air channels; as shown in fig. 7, when the air valve 5 is opened, the air return channel is communicated with the fresh air channel, and the air return channel does not continue to circulate, so that the air return can be blocked, and the air return is bypassed to the fresh air side for mixing.
As shown in fig. 1, in a preferred embodiment of the present application, a first port valve 13 (located on the indoor side) and a second port valve 19 (located on the outdoor side) are sequentially disposed between the first heat exchanger 4 and the first throttling part 20; a third port valve 16 (located on the indoor side) and a fourth port valve 18 (located on the outdoor side) are sequentially disposed between the second heat exchanger 2 and the four-way valve 24.
As shown in fig. 1-5, in the embodiment of the present application, the four-way valve 24 includes a D end, a C end, an S end, and an E end; the end D is communicated with an exhaust port of the compressor 25, the end C is communicated with the third heat exchanger 22, the end S is communicated with an air suction port of the compressor 25, and the end E is communicated with the second heat exchanger 2.
In summary, as shown in fig. 1, an air conditioner provided in an embodiment of the present application includes an indoor unit portion and an outdoor unit portion, where the indoor unit portion includes: the fresh air channel and the return air channel are positioned in the inner cavity of the shell 6, and the return air channel is provided with a first filter screen 1, a heat exchange core 7 and a return air fan 10; the fresh air channel is provided with a sand prevention net 9, a second filter screen 8, a heat exchange core 7, a fresh air fan 12, a first heat exchanger 4, a humidifying membrane component 3, a second heat exchanger 2 and a high-efficiency filter screen 17. The outdoor unit part includes: a fourth port valve 18, a second port valve 19, a first throttling part 20, a second electromagnetic bypass valve 21, a third heat exchanger 22, an outdoor fan 23, a four-way valve 24 and a compressor 25. An outdoor fan 23 is provided at the third heat exchanger 22.
The indoor unit part adopts two heat exchangers in a one-to-one mode, and has the advantages of small system and low cost; the humidifying membrane unit 3 is arranged between the two heat exchangers, so that the temperature of the air outlet can be better controlled and the humidifying capacity can be improved. The cold source is manufactured through the refrigerant compression cycle, so that the fresh air is subjected to various treatments such as refrigeration, cooling and dehumidification, constant-temperature dehumidification, heating and humidification, constant-temperature humidification and the like. The arrangement of the heat exchange core 7 can improve the energy efficiency of the unit, and meanwhile, the arrangement position of the heat exchange core 7 in the embodiment of the application is beneficial to reducing dust accumulation in the heat exchange core 7 and prolonging the service life. Through the setting of blast gate 5, can bypass the return air to the new trend side and mix, reduce energy and arrange outward, can make the room air carry out rapid cooling or intensification. The comfort of the air conditioner in the use process is further realized by the cooperation of multiple aspects.
Another embodiment of the present application provides a control method of an air conditioner, including the steps of:
controlling the first heat exchanger 4 and the second heat exchanger 2 to heat;
or alternatively, the process may be performed,
controlling the first heat exchanger 4 and the second heat exchanger 2 to refrigerate;
or alternatively, the process may be performed,
controlling heating in the first heat exchanger 4 and controlling the second heat exchanger 2 to refrigerate; or the first heat exchanger 4 is controlled to refrigerate, and the second heat exchanger 2 is controlled to heat.
Specifically, in order to realize different functions, the processing modes of the air conditioner are as follows:
the above table is combined (where DC in the table generally means that the D-side and C-side of the four-way valve 24 are in communication, and the remainder are the same):
the control method of the air conditioner comprises the following steps:
heating mode:
the method for controlling the first heat exchanger 4 and the second heat exchanger 2 to heat specifically comprises the following steps: as shown in the figure 3 of the drawings,
the DE end of the four-way valve 24 is controlled to be communicated (namely, the D end is communicated with the E end), and the refrigerant flows through the four-way valve 24 from the exhaust port A of the compressor 25 to the second heat exchanger 2 for heating; the refrigerant flows to the first heat exchanger 4 through the first electromagnetic bypass valve 14 to heat. The refrigerant passes from the discharge port a of the compressor 25 through the DE passage of the four-way valve 24 to the indoor unit. On the indoor side, the refrigerant is condensed by the second heat exchanger 2 to release heat from the air, then bypasses the first electromagnetic bypass valve 14 to release heat from the first heat exchanger 4, and returns to the outdoor unit. The refrigerant returned to the outdoor unit is throttled and depressurized by the first throttling part 20, then evaporated and absorbed in the third heat exchanger 22, and then returned to the suction port B of the compressor 25 through the CS passage of the four-way valve 24, thus completing the cycle.
Heating and humidifying modes: the humidification membrane part 3 works and other cycles are identical to the heating mode.
Cooling mode:
the method for controlling the first heat exchanger 4 and the second heat exchanger 2 to refrigerate specifically comprises the following steps, as shown in fig. 2:
the DC end of the four-way valve 24 is controlled to be communicated (the D end is communicated with the C end), and the refrigerant flows through the four-way valve 24 from the exhaust port of the compressor 25 to the third heat exchanger 22 for condensation and heating; the refrigerant flows through the first throttling part 20 to the first heat exchanger 4 and the second heat exchanger 2 in sequence, and controls the first heat exchanger 4 and the second heat exchanger 2 to refrigerate. The refrigerant is discharged from the discharge port a of the compressor 25, flows through the DC passage of the four-way valve 24 to the third heat exchanger 22 to condense and release heat, and then flows into the indoor unit after being throttled and depressurized by the first throttling part 20. On the indoor side, the refrigerant absorbs heat through the first heat exchanger 4 to cool the air, bypasses through the first electromagnetic bypass valve 14 to cool the second heat exchanger 2, returns to the outdoor unit, and returns to the air suction port B of the compressor 25 through the four-way valve 24ES channel, thus completing the cycle.
Cooling and dehumidifying modes: as in the cooling mode.
Constant temperature dehumidification mode:
the method for controlling the heating in the first heat exchanger 4 and the cooling in the second heat exchanger 2 is as shown in fig. 4, and specifically comprises the following steps: the refrigerant comes out from the exhaust port A of the compressor 25, goes through the DC channel of the four-way valve 24 to the third heat exchanger 22 for preliminary condensation, and because the second electromagnetic bypass valve 21 is opened, the first heat exchanger 4 also serves as a condenser for heat release, and then enters the second heat exchanger 2 after being throttled and depressurized by the second throttling part 15, and the second heat exchanger 2 serves as an evaporator for heat absorption. Then returns to the outdoor unit and returns to the suction port B of the compressor 25 through the four-way valve 24ES, thus completing the cycle. After the air is heated by the first heat exchanger 4, the temperature of the air is reduced and dehumidified by the second heat exchanger 2, and the temperature of the air outlet is kept constant while dehumidification is performed.
Constant temperature humidification mode:
the first heat exchanger 4 is controlled to refrigerate, and the second heat exchanger 2 is controlled to heat, as shown in fig. 5, specifically comprising the following steps: the refrigerant passes from the discharge port a of the compressor 25 through the DE passage of the four-way valve 24 to the indoor unit. On the indoor side, the refrigerant is condensed by the second heat exchanger 2 to release heat for the air, throttled by the second throttling part 15, then evaporated and cooled by the first heat exchanger 4, and then returned to the outdoor unit. The refrigerant returned to the outdoor unit is bypassed by the second electromagnetic bypass valve 21 to the third heat exchanger 22 to continue evaporation and heat absorption, and then returned to the suction port B of the compressor 25 through the CS passage of the four-way valve 24, thus completing the cycle. After the air is cooled by the first heat exchanger 4, the air is humidified by the humidifying mould part, and then is heated by the second heat exchanger 2, so that the temperature of the air outlet is kept constant while the air is humidified.
The air channel part of the fresh air conditioner indoor unit can be controlled by a fan and an air valve 5 to control an air inlet mode, and the two modes of the fresh air mode and the air mixing mode are switched, wherein the specific control is as follows:
fresh air mode: the fresh air fan 12 is opened, the return air fan 10 is opened, and the air valve 5 for mixing air is closed;
mixing mode: the fresh air fan 12 is turned on, the return air fan 10 is turned off, and the air valve 5 for mixing air is turned on.
As shown in fig. 6, the fresh air mode specifically includes the following steps:
the return air blower 10 and the fresh air blower 12 are opened, the air valve 5 is closed, the return air passes through the return air channel and is discharged outdoors, and the fresh air exchanges heat in the fresh air channel and enters indoors. Because of the negative suction pressure of the outdoor fan 23, fresh air passes through the sand prevention net 9 and the second filter screen 8 and then enters the heat exchange core 7, and is subjected to total heat exchange with return air, so that the heat of indoor return air is recovered to improve the energy efficiency; then the air is conveyed into a room after passing through the first heat exchanger 4, the humidifying membrane component 3, the second heat exchanger 2 and the high-efficiency filter screen 17 under the positive pressure effect; due to the negative suction pressure of the return air fan 10, indoor return air passes through the first filter screen 1 and then enters the heat exchange core 7 to perform total heat exchange with fresh air, and then is discharged outdoors by positive pressure of the fan.
The fresh air mode is used for sending processed fresh air into a room and discharging indoor return air outdoors, has the functions of ventilation and purification, and can be used simultaneously with refrigeration, cooling and dehumidification, heating and humidification, constant-temperature dehumidification and constant-temperature humidification.
As shown in fig. 7, the air mixing mode specifically includes the following steps:
opening the fresh air fan 12 and the air valve 5, closing the return air fan 10, enabling return air to enter the fresh air channel through the return air channel at the switch of the air valve 5, mixing the return air with the fresh air in the fresh air channel, exchanging heat, and then entering a room. The air valve 5 is opened, the return air fan 10 is closed, the fresh air fan 12 is used for exhausting negative pressure, indoor return air passes through the first filter screen 1 and the air valve 5 and then enters the fan cavity, and meanwhile, outdoor fresh air passes through the sand prevention net 9, the second filter screen 8 and the heat exchange core 7 and then also enters the fan cavity; in the fan cavity, the fresh air and the return air are mixed; after being mixed, the mixture passes through the first heat exchanger 4, the humidifying membrane component 3, the second heat exchanger 2 and the high-efficiency filter screen 17 and then is sent into a room.
The air mixing mode mixes the indoor return air with the fresh air for treatment, and the air mixing mode has the functions of energy conservation and purification, and can be used simultaneously with refrigeration, cooling and dehumidification, heating and humidification, constant-temperature dehumidification and constant-temperature humidification.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus in question must have a specific orientation, be constructed and operated in a specific orientation, and are not to be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, integrally formed, or the like. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (8)
1. An air conditioner, comprising: the device comprises a first heat exchanger (4), a humidifying membrane component (3), a second heat exchanger (2), a compressor (25), a four-way valve (24), a third heat exchanger (22) and a first throttling component (20);
the compressor (25), the four-way valve (24), the third heat exchanger (22), the first throttling component (20), the first heat exchanger (4) and the second heat exchanger (2) are sequentially connected and form a heat exchange loop;
the humidifying membrane component (3) is arranged between the first heat exchanger (4) and the second heat exchanger (2);
the first heat exchanger (4) is connected with the second heat exchanger (2) through a second throttling component (15) to form a first branch, the first heat exchanger (4) is connected with the second heat exchanger (2) through a first electromagnetic bypass valve (14) to form a second branch, and the first branch is connected with the second branch in parallel;
the heat exchange loop comprises the first branch and the second branch;
a second electromagnetic bypass valve (21) is arranged at the first throttling part (20) in parallel;
the four-way valve (24) comprises a D end, a C end, an S end and an E end; the end D is communicated with an exhaust port of the compressor (25), the end C is communicated with the third heat exchanger (22), the end S is communicated with an air suction port of the compressor (25), and the end E is communicated with the second heat exchanger (2);
the states of the first electromagnetic bypass valve (14) and the second electromagnetic bypass valve (21) are controlled so that the first heat exchanger (4) can be used as an evaporator, the second heat exchanger (2) can be used as a condenser, and a constant-temperature humidification mode is realized by matching with the humidification membrane component (3); or, by controlling the states of the first electromagnetic bypass valve (14) and the second electromagnetic bypass valve (21) so that the first heat exchanger (4) is used as a condenser and the second heat exchanger (2) is used as an evaporator, a constant temperature dehumidification mode is realized; or the first heat exchanger (4) and the second heat exchanger (2) are used together as a condenser or an evaporator.
2. The air conditioner according to claim 1, further comprising: the air return channel is internally provided with an air return fan (10), and the fresh air channel is internally provided with a fresh air fan (12);
the first heat exchanger (4), the humidifying membrane component (3) and the second heat exchanger (2) are all located in the fresh air channel.
3. An air conditioner according to claim 2, further comprising: a heat exchange core (7),
the fresh air channel and the return air channel are respectively communicated with the heat exchange core body (7), and the return air of the return air channel and the fresh air of the fresh air channel respectively flow through the heat exchange core body (7) in a positive crossing mode;
the heat exchange core body (7) is positioned at the inlet of the fresh air channel and the outlet of the return air channel;
and the inlet of the return air channel is provided with a first filter screen (1), and the inlet of the fresh air channel is sequentially provided with a sand prevention screen (9) and a second filter screen (8).
4. An air conditioner according to claim 2, wherein an air valve (5) is arranged on the return air channel or the fresh air channel; and the air return channel is communicated with the fresh air channel and is blocked by opening the air valve (5).
5. The air conditioner according to claim 1, wherein a first interface valve (13) and a second interface valve (19) are sequentially provided between the first heat exchanger (4) and the first throttling part (20);
a third interface valve (16) and a fourth interface valve (18) are sequentially arranged between the second heat exchanger (2) and the four-way valve (24).
6. A control method of an air conditioner applied to the air conditioner according to any one of claims 1 to 5, characterized by comprising the steps of:
the end D and the end E of the four-way valve (24) are controlled to be communicated, and the refrigerant flows through the four-way valve (24) from the exhaust port of the compressor (25) to the second heat exchanger (2) for heating;
the refrigerant flows to the first heat exchanger (4) for heating through the first electromagnetic bypass valve (14) so as to control the first heat exchanger (4) and the second heat exchanger (2) for heating;
or alternatively, the process may be performed,
the D end and the C end of the four-way valve (24) are controlled to be communicated, and refrigerant flows through the four-way valve (24) to the third heat exchanger (22) from the exhaust port of the compressor (25) to be condensed and heated;
the refrigerant flows through the first throttling component (20) to the first heat exchanger (4) and the second heat exchanger (2) in sequence so as to control the refrigeration of the first heat exchanger (4) and the second heat exchanger (2);
or alternatively, the process may be performed,
the D end and the C end of the four-way valve (24) are controlled to be communicated, and the second electromagnetic bypass valve (21) is controlled to be opened;
refrigerant flows through the four-way valve (24) from the exhaust port of the compressor (25) to the third heat exchanger (22) for condensing and heating;
the refrigerant enters the first heat exchanger (4) for heating, flows through the second throttling component (15) and enters the second heat exchanger (2) for refrigerating, so as to control the heating in the first heat exchanger (4) and control the second heat exchanger (2) for refrigerating; or controlling the first heat exchanger (4) to refrigerate and the second heat exchanger (2) to heat; and
controlling the humidification of the humidification membrane component (3).
7. The control method of an air conditioner according to claim 6, further comprising the steps of: the air inlet mode is controlled, and the method specifically comprises the following steps:
opening a return air fan (10) and a fresh air fan (12), closing an air valve (5), discharging return air to the outside through a return air channel, exchanging heat in the fresh air channel, and entering a room; or alternatively, the process may be performed,
opening the fresh air fan (12) and the air valve (5), closing the return air fan (10), enabling return air to enter the fresh air channel through the return air channel at the switch position of the air valve (5), and enabling the return air and the fresh air to be mixed in the fresh air channel and enter a room after heat exchange.
8. The control method of an air conditioner according to claim 7, wherein the return air blower (10) and the fresh air blower (12) are turned on, the air valve (5) is turned off, the return air passes through the return air passage and is discharged to the outside, and the fresh air exchanges heat in the fresh air passage and enters the room, further comprising:
the return air and the fresh air exchange heat at the heat exchange core body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430421.0A CN110260432B (en) | 2019-05-22 | 2019-05-22 | Air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430421.0A CN110260432B (en) | 2019-05-22 | 2019-05-22 | Air conditioner and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110260432A CN110260432A (en) | 2019-09-20 |
| CN110260432B true CN110260432B (en) | 2023-08-15 |
Family
ID=67915162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910430421.0A Active CN110260432B (en) | 2019-05-22 | 2019-05-22 | Air conditioner and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110260432B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736142B (en) * | 2019-10-12 | 2021-05-28 | 海信（山东）空调有限公司 | Air conditioner and rapid dehumidification control method without cooling |
| CN110986213A (en) * | 2019-11-11 | 2020-04-10 | 珠海格力电器股份有限公司 | Fresh air system with heat exchange core and air conditioner |
| CN111043676B (en) * | 2019-12-20 | 2024-01-23 | 珠海格力电器股份有限公司 | Fresh air dehumidifying air conditioner and fresh air dehumidifying method |
| CN111397003B (en) * | 2020-02-20 | 2021-03-26 | 珠海格力电器股份有限公司 | Air conditioning system and corresponding humidification control method thereof |
| CN112128852B (en) * | 2020-09-14 | 2024-04-12 | 珠海格力电器股份有限公司 | Double-condensation-temperature heat pump system and control method |
| CN112378004B (en) * | 2020-11-19 | 2022-07-12 | 青岛海信日立空调系统有限公司 | Air conditioning apparatus |
| CN113137668A (en) * | 2021-03-08 | 2021-07-20 | 青岛海尔空调电子有限公司 | Air conditioner and control method and control device thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07310964A (en) * | 1994-05-13 | 1995-11-28 | Toyo Eng Works Ltd | Air conditioner |
| JPH10205819A (en) * | 1997-01-21 | 1998-08-04 | Ebara Corp | Air conditioner and air conditioning system |
| JP2000074416A (en) * | 1998-09-01 | 2000-03-14 | Orion Mach Co Ltd | Air processor |
| JP2003294274A (en) * | 2002-04-05 | 2003-10-15 | Kajima Corp | Constant temperature and humidity air-conditioning system |
| JP2006317078A (en) * | 2005-05-12 | 2006-11-24 | Toyo Eng Works Ltd | Heat pump type air conditioner |
| CN101294755A (en) * | 2008-06-27 | 2008-10-29 | 四川长虹电器股份有限公司 | Air-conditioning unit with constant temperature and humidity |
| CN101995062A (en) * | 2010-11-09 | 2011-03-30 | 帝思迈环境设备（上海）有限公司 | Total heat recovery humidifying fresh-air heat pump |
| CN102620361A (en) * | 2012-02-23 | 2012-08-01 | 宁波奥克斯空调有限公司 | Heat pump air conditioner with dehumidifying function and control method thereof |
| CN202792266U (en) * | 2012-09-17 | 2013-03-13 | 范建亮 | Air conditioner |
| CN103075768A (en) * | 2013-02-01 | 2013-05-01 | 海信（山东）空调有限公司 | Constant temperature and humidity air conditioning unit and control method |
| CN203349404U (en) * | 2013-06-08 | 2013-12-18 | 范建亮 | Frequency conversion central constant-temperature humidification constant-oxygen constant-cleanliness air conditioner |
| CN203964187U (en) * | 2014-07-21 | 2014-11-26 | 深圳市沃森空调技术有限公司 | The multi-connected air conditioner device of cooling and warming simultaneously |
| CN105890070A (en) * | 2016-06-01 | 2016-08-24 | 江苏慧居建筑科技有限公司 | Multi-condenser and double-return-air bypass dehumidification fresh air unit and air conditioning method |
| CN107842963A (en) * | 2017-09-20 | 2018-03-27 | 珠海格力电器股份有限公司 | New blower fan and its control method |
| CN210425366U (en) * | 2019-05-22 | 2020-04-28 | 珠海格力电器股份有限公司 | Air conditioner |
-
2019
- 2019-05-22 CN CN201910430421.0A patent/CN110260432B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07310964A (en) * | 1994-05-13 | 1995-11-28 | Toyo Eng Works Ltd | Air conditioner |
| JPH10205819A (en) * | 1997-01-21 | 1998-08-04 | Ebara Corp | Air conditioner and air conditioning system |
| JP2000074416A (en) * | 1998-09-01 | 2000-03-14 | Orion Mach Co Ltd | Air processor |
| JP2003294274A (en) * | 2002-04-05 | 2003-10-15 | Kajima Corp | Constant temperature and humidity air-conditioning system |
| JP2006317078A (en) * | 2005-05-12 | 2006-11-24 | Toyo Eng Works Ltd | Heat pump type air conditioner |
| CN101294755A (en) * | 2008-06-27 | 2008-10-29 | 四川长虹电器股份有限公司 | Air-conditioning unit with constant temperature and humidity |
| CN101995062A (en) * | 2010-11-09 | 2011-03-30 | 帝思迈环境设备（上海）有限公司 | Total heat recovery humidifying fresh-air heat pump |
| CN102620361A (en) * | 2012-02-23 | 2012-08-01 | 宁波奥克斯空调有限公司 | Heat pump air conditioner with dehumidifying function and control method thereof |
| CN202792266U (en) * | 2012-09-17 | 2013-03-13 | 范建亮 | Air conditioner |
| CN103075768A (en) * | 2013-02-01 | 2013-05-01 | 海信（山东）空调有限公司 | Constant temperature and humidity air conditioning unit and control method |
| CN203349404U (en) * | 2013-06-08 | 2013-12-18 | 范建亮 | Frequency conversion central constant-temperature humidification constant-oxygen constant-cleanliness air conditioner |
| CN203964187U (en) * | 2014-07-21 | 2014-11-26 | 深圳市沃森空调技术有限公司 | The multi-connected air conditioner device of cooling and warming simultaneously |
| CN105890070A (en) * | 2016-06-01 | 2016-08-24 | 江苏慧居建筑科技有限公司 | Multi-condenser and double-return-air bypass dehumidification fresh air unit and air conditioning method |
| CN107842963A (en) * | 2017-09-20 | 2018-03-27 | 珠海格力电器股份有限公司 | New blower fan and its control method |
| CN210425366U (en) * | 2019-05-22 | 2020-04-28 | 珠海格力电器股份有限公司 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110260432A (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110260432B (en) | Air conditioner and control method thereof | |
| KR101702884B1 (en) | Heat Pump-Type Heating and Cooling System | |
| KR100821568B1 (en) | Air conditioner | |
| CN110375404B (en) | Fresh air conditioner with double evaporation temperatures and control method thereof | |
| CN107270447A (en) | A kind of capillary radiation special air conditioner heat pump fresh air group and its control method | |
| CN101294755A (en) | Air-conditioning unit with constant temperature and humidity | |
| CN110230864A (en) | Air conditioner, its fresh air heat pump cycle pipeline and recuperation of heat control system and method | |
| CN109000312A (en) | Monoblock type heat pump heat reclamation type fresh air dehumidifier with interior circulation pattern | |
| CN213395606U (en) | Air conditioner | |
| CN112229002A (en) | Air conditioning system and control method thereof | |
| CN209588313U (en) | A kind of multi-state Fresh air handing device | |
| CN112229003B (en) | Air conditioning system and control method thereof | |
| CN210425366U (en) | Air conditioner | |
| CN112413751A (en) | Dehumidifier air duct system and air valve control method thereof | |
| CN110608541B (en) | Heat pump system | |
| CN214468973U (en) | All-air integrated air conditioner | |
| CN109631171A (en) | A kind of more heat exchanger window air conditioners having fresh air function | |
| CN210425368U (en) | Fresh air conditioner with double evaporation temperatures | |
| JP3614775B2 (en) | Heat pump air conditioner | |
| CN114198808A (en) | Reheating type passive environmental control integrated machine set | |
| KR102257544B1 (en) | Energy enhanced air-conditioning system and control method thereof | |
| CN106949547B (en) | Dehumidification apparatus and control method thereof | |
| CN217209606U (en) | Temperature and humidity double-control heat pump fresh air dehumidifier with deep total heat recovery | |
| CN213687065U (en) | Fresh air conditioning system | |
| CN218269311U (en) | Fresh air dehumidification all-in-one machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |