CN105910175B - The control method of air conditioner indoor unit, air-conditioner set and air-conditioner set - Google Patents
The control method of air conditioner indoor unit, air-conditioner set and air-conditioner set Download PDFInfo
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- CN105910175B CN105910175B CN201610280172.8A CN201610280172A CN105910175B CN 105910175 B CN105910175 B CN 105910175B CN 201610280172 A CN201610280172 A CN 201610280172A CN 105910175 B CN105910175 B CN 105910175B
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- Prior art keywords
- heat exchanger
- air
- return air
- indoor heat
- air inlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F13/28—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
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
-
- 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
Abstract
The invention discloses the control methods of a kind of air conditioner indoor unit, air-conditioner set and air-conditioner set.Air conditioner indoor unit includes: shell, and the first return air inlet, the second return air inlet and air outlet are provided on shell, and the first return air inlet and the second return air inlet can be opened and closed to be arranged；Indoor fan is set in shell, for making to enter from the first return air inlet and the second return air inlet the intracorporal return air of shell from air outlet blowout；First indoor heat exchanger is set in shell and is located on the first return air inlet to the air duct between air outlet；Second indoor heat exchanger, it is set in shell and is located on the second return air inlet to the air duct between air outlet, wherein, the second indoor heat exchanger is coupled with the first indoor heat exchanger, can be as condenser using the second indoor heat exchanger when the first indoor heat exchanger is as evaporator.The present invention realizes heating during air-conditioner set defrosts process and/or anti-cold wind, improves the comfort in room, improves user experience.
Description
Technical field
The present invention relates to air-conditioning technique field, in particular to a kind of air conditioner indoor unit, air-conditioner set and air-conditioner set
Control method.
Background technique
In the prior art, heat pump air conditioner unit is to switch four in air-conditioner set heating condition operational process in defrosting
Port valve is to be switched to cooling condition for air-conditioner set.Outdoor heat exchanger is as condenser when defrosting, and indoor heat exchanger is as steaming
Device is sent out, the high temperature and pressure refrigerant of compressor discharge is entered in outdoor heat exchanger by four-way valve, removed to outdoor heat exchanger
Frost.Due to indoor heat exchanger defrosting when as evaporator, temperature is lower, thus defrost during indoor fan shut down,
To prevent to blows cold wind indoors.In addition, being still to restore by several minutes of anti-cold wind process after defrosting process terminates
To indoor heating.
In the implementation of the present invention, designer has found, the above prior art has following shortcoming:
Since indoor fan stalls during air-conditioner set defrosts, stop causing room temperature to decline indoor heating,
Influence the comfort in room.It cannot heat to interior during anti-cold wind, room temperature will be caused to further decrease, into one
Step influences the comfort in room, influences the experience of user.
Air-conditioner set refrigeration when, the indoor higher return air of temperature out of, return air inlet enters air conditioner indoor unit shell,
And exchange heat and cool down with the refrigerant in the indoor heat exchanger as evaporator, it is then blown out by air outlet, is blown out by air outlet
Cold wind temperature it is lower, be easy to cause discomfort to user, long-term blow-through result even in user flu, headache.
In addition, although air-conditioner set can be dehumidified under cooling condition by working in the prior art, because of its steaming
Temperature is sent out compared with Special dehumidifier height, air-conditioner set dehumidifying effect is weaker, removes identical water and needs to consume more energy, dehumidifies
Power consumption is big；Leaving air temp can be caused very low again if reducing evaporating temperature by force, air outlet is blown a cold wind in dehumidification process, gives user
Uncomfortable feeling is caused, therefore, it is difficult to dehumidify under cooling condition when environment temperature is lower.
Summary of the invention
The purpose of the present invention is to provide the control methods of a kind of air conditioner indoor unit, air-conditioner set and air-conditioner set, it is intended to
So that air-conditioner set is realized heating during defrosting and/or anti-cold wind, improve the comfort in room, improves user experience.
First aspect present invention provides a kind of air conditioner indoor unit, comprising: shell is provided with the first return air on the shell
Mouth, the second return air inlet and air outlet, first return air inlet and second return air inlet can be opened and closed to be arranged；Indoor fan,
Be set in the shell, for make to enter from first return air inlet and second return air inlet intracorporal return air of the shell from
The air outlet blowout；First indoor heat exchanger is set in the shell and is located at first return air inlet to the outlet air
On air duct between mouthful；Second indoor heat exchanger is set in the shell and is located at second return air inlet to the outlet air
On air duct between mouthful, wherein second indoor heat exchanger is coupled with first indoor heat exchanger, in first Room
Second indoor heat exchanger described in when interior heat exchanger is as evaporator can be used as condenser.
Preferably, first indoor heat exchanger is located at first return air inlet；And/or heat exchange in the second Room
Device is located at second return air inlet.
Preferably, the air conditioner indoor unit further includes the first filter structure, and first filter structure is for filtering from institute
The first return air inlet is stated into the intracorporal return air of the shell；And/or the air conditioner indoor unit further includes the second filter structure, it is described
Second filter structure enters the intracorporal return air of the shell for filtering from second return air inlet.
Preferably, first return air inlet is located at the front upper part of the shell；And/or second return air inlet is located at institute
State the upper back of shell；And/or the air outlet is located at the lower front side of the shell；And/or the indoor fan is located at
The intracorporal middle part of shell.
Preferably, the return air amount of first return air inlet is adjustably arranged；And/or the return air of second return air inlet
Amount is adjustably arranged.
Preferably, the air conditioner indoor unit further includes the first wind deflector at first return air inlet, and described first
Wind deflector adjustable angle saves land setting to adjust the return air amount of first return air inlet；And/or the air conditioner indoor unit further includes
The second wind deflector at second return air inlet, the second wind deflector adjustable angle, which saves land, to be arranged to adjust described second
The return air amount of return air inlet.
Preferably, first return air inlet includes more than two first sub- return air inlets independent and to be opened/closed；And/or institute
Stating the second return air inlet includes more than two second sub- return air inlets independent and to be opened/closed.
Preferably, the air conditioner indoor unit further includes regenerative structure, and the regenerative structure is located at the described first indoor heat exchange
On device and second indoor heat exchanger to the air duct between the air outlet.
Preferably, the regenerative structure is located at the intracorporal rear side of the shell.
Preferably, the regenerative structure includes phase change heat storage material layer.
Preferably, the air conditioner indoor unit further includes auxiliary throttling set, first indoor heat exchanger, auxiliary section
It flows device and second indoor heat exchanger is connected in series.
Second aspect of the present invention provides a kind of air-conditioner set, including air conditioner indoor unit, compressor, four-way valve, outdoor heat exchange
Device and main throttling set, wherein the air conditioner indoor unit is air conditioner indoor unit described in any one of first aspect present invention, institute
State compressor, the four-way valve, the outdoor heat exchanger, the main throttling set, first indoor heat exchanger and described
Two indoor heat exchangers are connected as coolant loop, and the operating position for switching the four-way valve can make the air-conditioner set in cooling condition
Switch between heating condition, wherein under the cooling condition, first indoor heat exchanger is as evaporator, the room
External heat exchanger is as condenser, and under the heating condition, first indoor heat exchanger is as condenser, the outdoor heat exchange
Device is as evaporator.
Preferably, the air-conditioner set further includes auxiliary throttling set, and the compressor, the four-way valve first connect
Heat exchange in mouth, the second interface of the four-way valve, first indoor heat exchanger, the auxiliary throttling set, the second Room
Device, the main throttling set, the outdoor heat exchanger, the 4th interface of the third interface of the four-way valve and the four-way valve are suitable
It is secondary to be connected as the coolant loop.
Preferably, the compressor, the first interface of the four-way valve, the second interface of the four-way valve, described first
Indoor heat exchanger, the main throttling set, the outdoor heat exchanger, the third interface of the four-way valve and the four-way valve
Four interfaces are sequentially connected with as the major loop of the coolant loop, and second indoor heat exchanger is in parallel with the outdoor heat exchanger,
And second indoor heat exchanger and the major loop have access state and off-state.
Third aspect present invention provides a kind of control method of air-conditioner set above-mentioned, and the control method includes: in institute
During stating air-conditioner set defrosting process and/or anti-cold wind, makes the air-conditioner set work under the cooling condition, make described
Second indoor heat exchanger closes first return air inlet as condenser, opens second return air inlet, the indoor fan fortune
Turn.
Preferably, the control method includes: to make the air-conditioner set work described in air-conditioner set dehumidifying
Under cooling condition, makes second indoor heat exchanger as condenser, opens first return air inlet and second return air inlet,
The indoor fan operating.
Preferably, the air-conditioner set further includes auxiliary throttling set, and the compressor, the four-way valve first connect
Heat exchange in mouth, the second interface of the four-way valve, first indoor heat exchanger, the auxiliary throttling set, the second Room
Device, the main throttling set, the outdoor heat exchanger, the 4th interface of the third interface of the four-way valve and the four-way valve are suitable
Secondary to be connected as coolant loop, the control method includes: the institute during air-conditioner set defrosts process and/or anti-cold wind
State main throttling set fully open and the auxiliary throttling set throttle so that second indoor heat exchanger as condenser.
Preferably, when the air-conditioner set heats, make air-conditioner set work under the heating condition, described the
One return air inlet and second return air inlet are opened, and the main throttling set throttles and the auxiliary throttling set fully opens,
So that second indoor heat exchanger is as condenser, the indoor fan operating.
Preferably, when the air-conditioner set freezes, make air-conditioner set work under the cooling condition, described the
One return air inlet and second return air inlet are opened, and the main throttling set throttles and the auxiliary throttling set fully opens,
So that second indoor heat exchanger is as evaporator, the indoor fan operating.
Preferably, when the air-conditioner set dehumidifies, make air-conditioner set work under the cooling condition, described the
One return air inlet and second return air inlet are opened, and the main throttling set fully opens and the auxiliary throttling set throttles,
So that second indoor heat exchanger is as condenser, the indoor fan operating.
Preferably, by changing dehumidifying energy of the air-conditioner set in dehumidifying described in the aperture regulation of the auxiliary throttling set
Power.
Preferably, the compressor, the first interface of the four-way valve, the second interface of the four-way valve, described first
Indoor heat exchanger, the main throttling set, the outdoor heat exchanger, the third interface of the four-way valve and the four-way valve
Four interfaces are sequentially connected with as the major loop of the coolant loop, and second indoor heat exchanger is in parallel with the outdoor heat exchanger,
And second indoor heat exchanger and the major loop have access state and off-state, the control method includes, in institute
During stating air-conditioner set defrosting process and/or anti-cold wind, second indoor heat exchanger and the major loop is made to be in access
State.
Preferably, when the air-conditioner set heats or when the air-conditioner set freezes, make second indoor heat exchanger
It is in an off state with the major loop, first return air inlet is opened, and second return air inlet opens or closes, the interior
Blower operating.
Preferably, when the air-conditioner set dehumidifies, make the air-conditioner set work under the cooling condition, make described
Second indoor heat exchanger and the major loop are in access state so that second indoor heat exchanger is as condenser, and described the
One return air inlet is opened, and second return air inlet is opened, the indoor fan operating.
Based on the control method of air conditioner indoor unit provided by the invention, air-conditioner set and air-conditioner set, due to the first interior
Heat exchanger is located on the first return air inlet to the air duct between air outlet, so that entering the first indoor heat exchanger from the first return air inlet
Return air and the first indoor heat exchanger heat exchange after again from air outlet blow out；Second indoor heat exchanger is located at the second return air inlet to out
On air duct between air port, so that being entered after the intracorporal return air of shell is exchanged with exchanger heat in second Room again from the second return air inlet
It is blown out from air outlet；And when the first indoor heat exchanger absorbs heat as evaporator, the second indoor heat exchanger can be used as condenser
Heat release, so that during defrosting and/or during anti-cold wind, making outdoor heat exchanger using the air-conditioner set of the air conditioner indoor unit
While heat absorption as condenser heat rejection, the first indoor heat exchanger as evaporator, make the second indoor heat exchanger as condenser
Heat release, therefore, in this case, as long as closing the first return air inlet and opening the second return air inlet, it can make from the second return air
Mouth enters the intracorporal return air of shell and blows out after the heat absorption of the second indoor heat exchanger from air outlet, so as to maintain to indoor heating,
Therefore, the present invention improves the comfort in room, changes to realize heating during air-conditioner set defrosts process and/or anti-cold wind
Kind user experience.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic cross-sectional view of the air conditioner indoor unit of the air-conditioner set of first embodiment of the invention.
Fig. 2 is the overlooking structure diagram of the air conditioner indoor unit of the air-conditioner set of first embodiment of the invention.
Fig. 3 is the coolant loop schematic illustration of the air-conditioner set of first embodiment of the invention.
Fig. 4 is flow diagram of the air-conditioner set of first embodiment of the invention under cooling condition.
Fig. 5 is flow diagram of the air-conditioner set of first embodiment of the invention under heating condition.
Fig. 6 is the coolant loop schematic illustration of the air-conditioner set of second embodiment of the invention.
Fig. 7 is the schematic cross-sectional view of the air conditioner indoor unit of the air-conditioner set of third embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
The direction after air conditioner indoor unit normal mounting is subject in the description as described in direction in the present invention.
As shown in Figures 1 to 7, air conditioner indoor unit 1 provided by the invention mainly includes shell 11, indoor fan 13, first
Indoor heat exchanger 12 and the second indoor heat exchanger 17.It is provided with the first return air inlet 111, the second return air inlet 112 on shell 11 and goes out
Air port 113.First return air inlet 111 and the second return air inlet 112 can be opened and closed to be arranged.Indoor fan 13 is set in shell 11,
The return air entered in shell 11 from the first return air inlet 111 and the second return air inlet 112 is sent out into shell 11 from air outlet 113.First
Indoor heat exchanger 12 is set in shell 11 and is located on the first return air inlet 111 to the air duct between air outlet 113.In second Room
Heat exchanger 17 is set in shell 11 and is located on the second return air inlet 112 to the air duct between air outlet 113.Wherein, second Room
Interior heat exchanger is coupled with the first indoor heat exchanger, using when the first indoor heat exchanger 12 is as evaporator, the second indoor heat exchanger
17 can be used as condenser.
The present invention also provides a kind of air-conditioner sets, including compressor 2, four-way valve 3, outdoor heat exchanger 4, main throttling set 5
And air conditioner indoor unit.Air conditioner indoor unit is air conditioner indoor unit 1 above-mentioned.Compressor 2, four-way valve 3, outdoor heat exchanger 4, main throttling
Device 5, the first indoor heat exchanger 12 and the second indoor heat exchanger 17 are connected as coolant loop.Switch the operating position of four-way valve 3
Air-conditioner set can be made to switch between cooling condition and heating condition.Wherein, under cooling condition, the first indoor heat exchanger 12 is made
For evaporator, outdoor heat exchanger 4 is used as condenser；Under heating condition, the first indoor heat exchanger 12 is used as condenser, and outdoor is changed
Hot device 4 is used as evaporator.
The present invention also provides a kind of control methods of air-conditioner set above-mentioned.The control method includes: to remove in air-conditioner set
During white process and/or anti-cold wind, make air-conditioner set work under cooling condition, the second indoor heat exchanger 17 is as condensation
Device closes the first return air inlet 111, opens the second return air inlet 112, and indoor fan 13 operates.
Since the first indoor heat exchanger 12 is located on the first return air inlet 111 to the air duct between air outlet 113, so that from
One return air inlet 111 enters after 12 heat exchange of return air and the first indoor heat exchanger of the first indoor heat exchanger 12 again from air outlet
Outside 113 blowout shells 11；Second indoor heat exchanger 17 is located on the second return air inlet 112 to the air duct between air outlet 113, so that
It the return air entered in shell 11 from the second return air inlet 112 and is blown again from air outlet 113 after 17 heat exchange of the second indoor heat exchanger
Out.And when the first indoor heat exchanger 12 absorbs heat as evaporator, the second indoor heat exchanger 17 can be used as condenser heat rejection, make
The air-conditioner set using the air conditioner indoor unit 1 is obtained during defrosting and/or during anti-cold wind, makes outdoor heat exchanger as cold
While condenser heat release, the first indoor heat exchanger 12 absorb heat as evaporator, the second indoor heat exchanger 17 can be used as condenser
Therefore heat release in this case, as long as closing the first return air inlet 111, opens the second return air inlet 112, it can make from second
Return air inlet 112 enters the return air in shell 11 and blows out after the heat absorption of the second indoor heat exchanger 17 from air outlet 113, so as to tie up
It holds to indoor heating, therefore, the present invention can realize heating during air-conditioner set defrosts process and/or anti-cold wind, improve
The comfort in room improves user experience.
The embodiment of the present invention is described in detail below with reference to Fig. 1 to Fig. 7.
First embodiment
Fig. 1 to Fig. 5 shows the structure and principle of first embodiment of the invention.
As depicted in figs. 1 and 2, in first embodiment, air conditioner indoor unit 1 mainly includes shell 11, the first indoor heat exchanger
12, indoor fan 13 and the second indoor heat exchanger 17.
The first return air inlet 111, the second return air inlet 112 and air outlet 113,111 He of the first return air inlet are provided on shell 11
Second return air inlet 112 can be opened and closed to be arranged.In the present embodiment, the first return air inlet 111 is located at the front upper part of shell 11.Second time
Air port 112 is located at the upper back of shell 11.Air outlet 113 is located at the lower front side of shell 11.
Indoor fan 13 is set in shell 11, enters shell from the first return air inlet 111 and the second return air inlet 112 for making
Return air in 11 sends out shell 11 from air outlet 113.In the present embodiment, indoor fan 13 is located at the middle part in shell 11.It is indoor
Blower 13 is specifically cross flow fan.
First indoor heat exchanger 12 is set in shell 11 and is located at the first return air inlet 111 to the wind between air outlet 113
On road.In the present embodiment, the first indoor heat exchanger 12 is located at the first return air inlet 111.
Second indoor heat exchanger 17 is set in shell 11 and is located at the second return air inlet 112 to the wind between air outlet 113
On road, when the first indoor heat exchanger 12 absorbs heat as evaporator, the second indoor heat exchanger 17 can be used as condenser heat rejection.This
In embodiment, the second indoor heat exchanger 17 is located at the second return air inlet 112.
As shown in Figure 1, air conditioner indoor unit 1 further includes the first filter structure 151, the first filter structure 151 for filter from
First return air inlet 111 enters the return air in shell 11.First filter structure 151 is for example including the first strainer.Pass through the first return air
Mouth 111 enters the return air in shell 11 and exchanges heat after the filtering of the first filter structure 151 with the first indoor heat exchanger 12.
As shown in Figure 1, air conditioner indoor unit 1 further includes the second filter structure 152, the second filter structure 152 for filter from
Second return air inlet 112 enters the return air in shell 11.Second filter structure 152 is for example including the second strainer.Pass through the second return air
Mouth 112 enters the return air in shell 11 and exchanges heat after the filtering of the second filter structure 152 with the second indoor heat exchanger 17.
First filter structure 151 and the second filter structure 152 can be an overall structure, be also possible to two mutually solely
Vertical separate structure.
Preferably, the return air amount of the first return air inlet 111 is adjustably arranged；And/or second the air quantity of return air inlet 112 can
Adjustably it is arranged.
As shown in Figure 1, air conditioner indoor unit 1 further includes the first wind deflector at the first return air inlet 111 in the present embodiment
161.First wind deflector, 161 adjustable angle saves land setting to adjust the return air amount of the first return air inlet 111.Air conditioner indoor unit 1 also wraps
Include the second wind deflector 162 being located at the second return air inlet 112.Second wind deflector, 162 adjustable angle, which saves land, to be arranged to adjust second
The return air amount of return air inlet 112.
The angle of first wind deflector 161 and the second wind deflector 162 can be respectively adjusted by manual or driving mechanism,
The angle of the first wind deflector 161 and the second wind deflector 162 is adjusted for example, can use motor.
In the present embodiment preferably, air conditioner indoor unit 1 further includes auxiliary throttling set 18, the first indoor heat exchanger 12, auxiliary
Help throttling set 18 and the second indoor heat exchanger 17 that (referring to Fig. 3 to Fig. 5, being not shown in Fig. 1 and Fig. 2) is connected in series.Certainly, auxiliary
It helps the setting position of throttling set 18 to be not limited to be located in air conditioner indoor unit, in other embodiments, assists throttling set 18
It can also be set together with air-conditioner outdoor unit without influencing to realize the first indoor heat exchanger 12, auxiliary throttling set 18 and second
Series connection relationship between indoor heat exchanger 17.
The air-conditioner set of the present embodiment includes that compressor 2, four-way valve 3, outdoor heat exchanger 4, main throttling set 5 and first are real
Apply the air conditioner indoor unit 1 of example.
As shown in Figures 3 to 5, compressor 2, four-way valve 3, outdoor heat exchanger 4, main throttling set 5, the first indoor heat exchanger
12, throttling set 18 and the second indoor heat exchanger 17 is assisted to be connected as coolant loop, the operating position of switching four-way valve 3 makes air-conditioning
Unit switches between cooling condition and heating condition.Under cooling condition, the first indoor heat exchanger 12 is used as evaporator, outdoor
Heat exchanger 4 is used as condenser, and under heating condition, the first indoor heat exchanger 12 is used as condenser, and outdoor heat exchanger 4 is as evaporation
Device.
In the present embodiment, no matter air-conditioner set is under heating condition under cooling condition, auxiliary throttling dress
18 are set to be used cooperatively with the main throttling set 5 of air-conditioner set, can be to the second indoor heat exchanger 17 as condenser working also
It is to be selected as evaporator operation.
It is connected in series as shown in Figures 3 to 5, in first embodiment specifically, the first interface of compressor 2, four-way valve 3
31, the second interface 32 of four-way valve 3, the first indoor heat exchanger 12, auxiliary throttling set 18, the second indoor heat exchanger 17, main section
The 4th interface 34 for flowing device 5, outdoor heat exchanger 4, the third interface 33 of four-way valve 3 and four-way valve 3, which is sequentially connected with, is formed as cold
Matchmaker circuit.
As shown in figure 4, four-way valve 3 switches to its first interface 31 and connects with third when air-conditioner set is in cooling condition
33 connection of mouth, second interface 32 are connected to the 4th interface 34.Refrigerant followed by compressor 2, four-way valve 3 first interface 31,
The third interface 33 of four-way valve 3, outdoor heat exchanger 4, main throttling set 5, the second indoor heat exchanger 17, auxiliary throttling set 18,
First indoor heat exchanger 12, the second interface 32 of four-way valve 3, four-way valve 3 the 4th interface 34 after flow back to compressor 2, and constantly
Circulation.At this point, outdoor heat exchanger 4 is used as condenser；First indoor heat exchanger 12 is used as evaporator.Second indoor heat exchanger 17 exists
As evaporator when the throttling of main throttling set 5, auxiliary throttling set 18 fully open, and fully opens in main throttling set 5, is auxiliary
Help throttling set 18 when throttling as condenser.
As shown in figure 5, four-way valve 3 switches to its first interface 31 and connects with second when air-conditioner set is in heating condition
32 connection of mouth, third interface 33 are connected to the 4th interface 34.Refrigerant followed by compressor 2, four-way valve 3 first interface 31,
The second interface 32 of four-way valve 3, the first indoor heat exchanger 12, auxiliary throttling set 18, the second indoor heat exchanger 17, main throttling dress
Compressor 2 is flowed back to after setting the 4th interface 34 of 5, outdoor heat exchanger 4, the third interface 33 of four-way valve 3, four-way valve 3, and is constantly followed
Ring.At this point, outdoor heat exchanger 4 is used as evaporator；First indoor heat exchanger 12 is used as condenser.Second indoor heat exchanger 17 is in master
The throttling of throttling set 5, auxiliary throttling set 18 as condenser, and are fully opened in main throttling set 5, are assisted when fully opening
Throttling set 18 is then used as evaporator when throttling.
As it can be seen that in the present embodiment, by the control to main throttling set 5 and auxiliary throttling set 18, in air-conditioner set
It to the second indoor heat exchanger 17 is selected as evaporator or as condenser under cooling condition and heating condition
It selects.
The control method of the air-conditioner set of first embodiment is described as follows below:
The control method is mainly included in during air-conditioner set defrosting process and/or anti-cold wind, and air-conditioner set is made to work
Under cooling condition, i.e., outdoor heat exchanger 4 is used as condenser, and the first indoor heat exchanger 12 is used as evaporator；And control main throttling
Device 5 fully opens and assists throttling set 18 to throttle so that the second indoor heat exchanger 17 is used as condenser；Close the first return air
Mouth 111；Open the second return air inlet 112；Indoor fan 13 operates.By the second return air inlet 112 enter shell 11 in return air with
The heat exchange heating of second indoor heat exchanger 17 forms hot wind, then blows out under the action of blower 13 from air outlet 113 indoors, to room
Interior heating, so as to realize the lasting heat supply during defrosting process and/or anti-cold wind.
In air-conditioner set heating, make air-conditioner set work under heating condition, i.e., outdoor heat exchanger 4 is used as evaporator,
First indoor heat exchanger 12 is used as condenser；First return air inlet 111 and the second return air inlet 112 are opened；Main throttling set 5 throttles
And auxiliary throttling set 18 fully opens, so that the second indoor heat exchanger 17 is used as condenser；Indoor fan 13 operates.Pass through
The return air that one return air inlet 111 enters in shell 11 forms hot wind through 12 heat temperature raising of the first indoor heat exchanger, passes through the second return air
The return air that mouth 112 enters in shell 11 form hot wind through 17 heat temperature raising of the second indoor heat exchanger, and two strands of hot winds are in shell 11
After mixing, is blown out under the action of blower 13 from air outlet 113 realize heating indoors.
In air-conditioner set refrigeration, make air-conditioner set work under cooling condition, i.e., outdoor heat exchanger 4 is used as condenser,
First indoor heat exchanger 12 is used as evaporator；First return air inlet 111 and the second return air inlet 112 are opened；Main throttling set 5 throttles
And auxiliary throttling set 18 fully opens, so that the second indoor heat exchanger 17 is used as evaporator；Indoor fan 13 operates.Pass through
The return air that first return air inlet 111 enters in shell 11 cools to form cold wind through the first indoor heat exchanger 12, passes through second time
The return air that air port 112 enters in shell 11 cools to form cold wind through the second indoor heat exchanger 17, and two strands of cold wind are in shell 11
After interior mixing, is blown out under the action of blower 13 from air outlet 113 realize refrigeration indoors.
In air-conditioner set dehumidifying, make air-conditioner set work under cooling condition, i.e., outdoor heat exchanger 4 is used as condenser,
First indoor heat exchanger 12 is used as evaporator；First return air inlet and the second return air inlet are opened；Main throttling set 5 fully open and
Throttling set 18 is assisted to throttle, so that the second indoor heat exchanger 17 is used as condenser；Indoor fan 13 operates.At this point, passing through the
The return air that one return air inlet 111 enters in shell 11 cools to form cold wind and dehumidify through the first indoor heat exchanger 12, meanwhile, lead to
It crosses the return air that the second return air inlet 112 enters in shell 11 and forms hot wind through 17 heat temperature raising of the second indoor heat exchanger, after dehumidifying
After cold wind mixes in shell 11 with hot wind, blown out under the action of blower 13 from air outlet 113 indoors.By reasonably adjusting
Into the return air amount of the first return air inlet 111 and the second return air inlet 112, the adjusting to leaving air temp may be implemented；And pass through change
Assist throttling set 18 aperture then adjustable air-conditioner set dehumidifying when dehumidifying effect.Since the present embodiment may be implemented
Dehumidifying carries out simultaneously with heating, even if carrying out dehumidification operation when environment temperature is lower, also can both guarantee certain dehumidifying
Amount, and leaving air temp will not be made too low.
Second embodiment
Fig. 6 shows the principle of the air-conditioner set of second embodiment of the invention.
As shown in fig. 6, second embodiment and first embodiment the difference is that, the air conditioner indoor unit of second embodiment
With auxiliary throttling set is not provided in air-conditioner set, but keep the second indoor heat exchanger 17 in parallel with outdoor heat exchanger 4, and
The major loop of two indoor heat exchangers 17 and coolant loop has access state and off-state.
If Fig. 6 shows, the air-conditioner set of the present embodiment includes compressor 2, four-way valve 3, outdoor heat exchanger 4, main throttling set 5
With the air conditioner indoor unit of second embodiment.The indoor heat exchange of compressor 2, four-way valve 3, outdoor heat exchanger 4, main throttling set 5, first
Device 12 and the second indoor heat exchanger 17 are connected as coolant loop.The operating position of switching four-way valve 3 makes air-conditioner set in refrigeration work
Switch between condition and heating condition.Under cooling condition, the first indoor heat exchanger 12 is used as evaporator, 4 conduct of outdoor heat exchanger
Condenser；Under heating condition, the first indoor heat exchanger 12 is used as condenser, and outdoor heat exchanger 4 is used as evaporator.
As shown in fig. 6, in second embodiment specifically, compressor 2, the first interface 31 of four-way valve 3, four-way valve 3
Two interfaces 32, the first indoor heat exchanger 12, main throttling set 5, outdoor heat exchanger 4, four-way valve 3 third interface 33 and four-way valve
3 the 4th interface 34 is sequentially connected with the major loop for coolant loop.The first end and second end of second indoor heat exchanger 17 is distinguished
Provided with the first control valve 61 and the second control valve 62.The first end of second indoor heat exchanger 17 passes through the first control valve 61 and room
The first end of external heat exchanger 4 connects, and the second end of the second indoor heat exchanger 17 passes through the second control valve 62 and outdoor heat exchanger 4
Second end connection, to realize being connected in parallel for the second indoor heat exchanger 17 and outdoor heat exchanger 4.In the first control valve 61 and
When two control valves 62 are opened, the second indoor heat exchanger 17 is in access state above-mentioned with major loop.In the first control valve 61
When being turned off with the second control valve 62, the second indoor heat exchanger 17 is in off-state above-mentioned with major loop.
As shown in fig. 6, four-way valve 3 switches to its first interface 31 and connects with third when air-conditioner set is in cooling condition
33 connection of mouth, second interface 32 are connected to the 4th interface 34.Refrigerant followed by compressor 2, four-way valve 3 first interface 31,
The third interface 33 of four-way valve 3, outdoor heat exchanger 4, main throttling set 5, the first indoor heat exchanger 12, four-way valve 3 second connect
Mouthfuls 32, compressor 2 is flowed back to after the 4th interface 34 of four-way valve 3, and constantly recycled.At this point, outdoor heat exchanger 4 is used as condenser；
First indoor heat exchanger 12 is used as evaporator.Second indoor heat exchanger 17 is opened in the first control valve 61 and the second control valve 62
Shi Zuowei condenser is in parallel with outdoor heat exchanger 4, the part refrigerant from four-way valve 3 pass through the second indoor heat exchanger 17 after with from
The refrigerant mixing that outdoor heat exchanger 4 flows out is laggard to become owner of throttling set 5.It is turned off in the first control valve 61 and the second control valve 62
When, the second indoor heat exchanger 17 is disconnected with major loop, is not come into operation.
As shown in figure 5, four-way valve 3 switches to its first interface 31 and connects with second when air-conditioner set is in heating condition
32 connection of mouth, third interface 33 are connected to the 4th interface 34.Refrigerant followed by compressor 2, four-way valve 3 first interface 31,
The second interface 32 of four-way valve 3, the first indoor heat exchanger 12, main throttling set 5, outdoor heat exchanger 4, four-way valve 3 third connect
Mouthfuls 33, compressor 2 is flowed back to after the 4th interface 34 of four-way valve 3, and constantly recycled.At this point, outdoor heat exchanger 4 is used as evaporator；
First indoor heat exchanger 12 is used as condenser.Second indoor heat exchanger 17 is turned off in the first control valve 61 and the second control valve 62
When, the second indoor heat exchanger 17 is disconnected with major loop, is not come into operation.If the first control valve 61 and the second control valve 62 at this time
It opens, the second indoor heat exchanger 17 is then used as evaporator.
The control method of the air-conditioner set of second embodiment is mainly included in air-conditioner set defrosting process and/or anti-cold wind mistake
Cheng Zhong makes air-conditioner set work under cooling condition, closes the first return air inlet 111, and the second indoor heat exchanger 17 is used as condenser
And the second return air inlet 112 is opened, indoor fan 13 operates.Wherein, during air-conditioner set defrosts process and/or anti-cold wind,
The second indoor heat exchanger 17 is set to be in access state with major loop.Specifically, the first control valve 61 and the second control valve 62 are beaten
It opens so that the second indoor heat exchanger 17 is in access state with major loop.
In second embodiment, in air-conditioner set heating, makes air-conditioner set work under heating condition, make to change in second Room
Hot device 17 is in an off state with outdoor heat exchanger 4.At this point, outdoor heat exchanger 4 is used as evaporator, the first indoor heat exchanger 12 is made
For condenser, the second indoor heat exchanger 17 is cut off from major loop.First return air inlet 111 is opened.Second return air inlet 112 can be beaten
Opening can also close.Indoor fan 13 operates.
If heating when the first return air inlet 111 and the second return air inlet 112 open, the indoor lower return air of temperature from
First return air inlet 111 enter shell 11 in, and in the first indoor heat exchanger 12 as condenser refrigerant heat exchange heating shape
At hot wind, hot wind with mix from the return air that the second return air inlet 112 enters in shell 11 after blown out by air outlet 113, at this point, leading to
The wind-warm syndrome of the blowout of air outlet 113 is crossed for the case where only opening the first return air inlet 111 closer to room temperature, it is possible to reduce because
The sense of discomfort of the more thermally-induced user of wind-warm syndrome improves user experience.
In second embodiment, in air-conditioner set refrigeration, makes air-conditioner set work under cooling condition, make to change in second Room
Hot device 17 is in an off state with outdoor heat exchanger 4.At this point, outdoor heat exchanger 4 is used as condenser, the first indoor heat exchanger 12 is made
For evaporator, the second indoor heat exchanger 17 is cut off from major loop.First return air inlet 111 is opened.Second return air inlet 112 can be beaten
Opening can also close.Indoor fan 13 operates.
If refrigeration when the first return air inlet 111 and the second return air inlet 112 open, the indoor higher return air of temperature from
First return air inlet 111 enter shell 11 in, and in the first indoor heat exchanger 12 as evaporator refrigerant heat exchange cooling shape
At cold wind, cold wind with mix from the return air that the second return air inlet 112 enters in shell 11 after blown out by air outlet 113, at this point, leading to
The air wind-warm syndrome of the blowout of air outlet 113 is crossed for the case where only opening the first return air inlet 111 closer to room temperature, can be subtracted
It is few because wind-warm syndrome it is lower caused by user sense of discomfort, improve user experience.Also can improve long-term blow-through leads to user's flu, headache
The case where.
The air-conditioner set of second embodiment can be used for dehumidifying.In air-conditioner set dehumidifying, air-conditioner set work is made to exist
Under cooling condition, the second indoor heat exchanger 17 is made to be in access state so that the second indoor heat exchanger 17 is as condensation with major loop
Device, the first return air inlet 111 are opened, and the second return air inlet 112 is opened, and indoor fan 13 operates.At this point, passing through the first return air inlet 111
It cools to form cold wind and dehumidify through the first indoor heat exchanger 12 into the return air in shell 11, meanwhile, pass through the second return air
The return air that mouth 112 enters in shell 11 form hot wind, cold wind and hot wind after dehumidifying through 17 heat temperature raising of the second indoor heat exchanger
After being mixed in shell 11, blown out under the action of blower 13 from air outlet 113 indoors.By reasonably adjusting into first time
The return air amount in air port 111 and the second return air inlet 112, or the flow by adjusting the first control valve 61 and the second control valve 62 can
To realize the adjusting to leaving air temp.It is carried out simultaneously since dehumidifying may be implemented in the present embodiment with heating, even if in environment temperature
Dehumidification operation is carried out when lower, also can not only guarantee certain moisture removal, but also leaving air temp will not be made too low.
Other unaccounted parts in second embodiment can refer to the related content of first embodiment.
3rd embodiment
Fig. 7 shows the structure of the air conditioner indoor unit 1 of the air-conditioner set of third embodiment of the invention.
As shown in fig. 7,3rd embodiment and first embodiment the difference is that, air conditioner indoor unit 1 further includes regenerative structure
14, regenerative structure 14 is located on the first indoor heat exchanger 12 and the second indoor heat exchanger 17 to the air duct between air outlet 113.
The setting is so that enter the return air in shell 11 from the first return air inlet 111 followed by 12 He of the first indoor heat exchanger
Regenerative structure 14 is blown out from air outlet 113 again；Enter the return air in shell 11 from the second return air inlet 112 followed by second Room
Heat exchanger 17 and regenerative structure 14 are blown out from air outlet 113 again, and therefore, regenerative structure 14 can be in the heating condition of air-conditioner set
The certain heat of lower storage, during air-conditioner set defrosts process and/or anti-cold wind, regenerative structure 14 can be to from second time
The return air that air port 112 enters in shell 11 is heated, and continues heat supply to indoor to realize.In addition, regenerative structure 14 is also
Play the role of stablizing the wind-warm syndrome of the hot wind or cold wind that blow out from air outlet 113, extends the time of wind-warm syndrome variation, wind-warm syndrome is prevented to be mutated
Give user's bring sense of discomfort.
As shown in Figure 1, regenerative structure 14 is located at the rear side in shell 11 in the present embodiment.Such setting can make accumulation of heat
Structure 14 is opposite to the resistance of return air to be reduced.
In the present embodiment preferably, regenerative structure 14 includes phase change heat storage material layer.Regenerative structure can be improved in the setting
14 heat storage capacity.
Other unaccounted contents can refer to the related content of the first embodiment or the second embodiment in 3rd embodiment.
Above embodiments should not be construed as limiting the invention.
For example, in some unshowned embodiments, the first return air inlet 111, the second return air inlet 112, air outlet 113,
The position of the structures such as one indoor heat exchanger 12, the second indoor heat exchanger 17 or component can become relative to previous embodiment
Change, is able to satisfy the first indoor heat exchanger 12 and is located on the first return air inlet 111 to the air duct between air outlet 113, is changed in second Room
Hot device 17 is located at the requirement on the second return air inlet 112 to the air duct between air outlet 113.
For another example the form of the first return air inlet 111 is not limited to a single return air inlet, but can be by multiple independent
First sub- return air inlet to be opened/closed forms the first return air inlet 111, at this point, the air quantity of each first sub- return air inlet can be it is adjustable
, be also possible to it is uncontrollable, in the case where the air quantity of each first sub- return air inlet is unadjustable, can pass through control open
The return air amount of the first return air inlet 111 is adjusted with the quantity of the first sub- return air inlet of closing；Similarly, the shape of the second return air inlet 112
Formula is not limited to a single return air inlet, but can form the second return air by multiple independent second sub- return air inlets to be opened/closed
Mouthfuls 112, at this point, the air quantity of each second sub- return air inlet can be adjustable, it is also possible to uncontrollable, is returned in each second son
In the case that the air quantity in air port is unadjustable, second can be adjusted by the quantity for the second sub- return air inlet that control opens and closes
The return air amount of return air inlet 112.
In another example the material of recuperation layer is not limited to phase change heat storage material in regenerative structure 14, and can be other has accumulation of heat
The heat-storing material of function.
In addition, the regulative mode and driving method of the first wind deflector 161 and the second wind deflector 162 can also make change etc.
Deng.
From the above description, it can be seen that the control of the air conditioner indoor unit of above embodiments of the present invention, air-conditioner set and air-conditioner set
Method processed one of has at least the following advantages: still can be to interior during the defrosting of air-conditioner set and/or during anti-cold wind
Continue heat supply, it is thereby achieved that indoor lasting heating in entire heating operations；It can be controlled under the premise of meeting refrigerating capacity
Constant-temperature dehumidifying function may be implemented in the leaving air temp of process of refrigerastion processed；Structure is simple, not will increase excessive cost input, and
It is technically easy to accomplish.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (24)
1. a kind of air conditioner indoor unit (1) characterized by comprising
Shell (11) is provided with the first return air inlet (111), the second return air inlet (112) and air outlet on the shell (11)
(113), first return air inlet (111) and second return air inlet (112) can be opened and closed to be arranged；
Indoor fan (13) is set in the shell (11), for making from first return air inlet (111) and second time described
The return air that air port (112) enters in the shell (11) is blown out from the air outlet (113)；
First indoor heat exchanger (12) is set in the shell (11) and is located at first return air inlet (111) to go out described in
On air duct between air port (113)；
Second indoor heat exchanger (17) is set in the shell (11) and is located at second return air inlet (112) to go out described in
On air duct between air port (113), wherein second indoor heat exchanger (17) and the first indoor heat exchanger (12) coupling
Close, using first indoor heat exchanger (12) be used as evaporator when described in the second indoor heat exchanger (17) can as condense
Device.
2. air conditioner indoor unit (1) according to claim 1, which is characterized in that
First indoor heat exchanger (12) is located at first return air inlet (111)；And/or
Second indoor heat exchanger (17) is located at second return air inlet (112).
3. air conditioner indoor unit (1) according to claim 1, which is characterized in that
The air conditioner indoor unit (1) further includes the first filter structure (151), first filter structure (151) for filter from
First return air inlet (111) enters the return air in the shell (11)；And/or
The air conditioner indoor unit (1) further includes the second filter structure (152), second filter structure (152) for filter from
Second return air inlet (112) enters the return air in the shell (11).
4. air conditioner indoor unit (1) according to claim 1, which is characterized in that
First return air inlet (111) is located at the front upper part of the shell (11)；And/or
Second return air inlet (112) is located at the upper back of the shell (11)；And/or
The air outlet (113) is located at the lower front side of the shell (11)；And/or
The indoor fan (13) is located at the middle part in the shell (11).
5. air conditioner indoor unit (1) according to claim 1, which is characterized in that
The return air amount of first return air inlet (111) is adjustably arranged；And/or
The return air amount of second return air inlet (112) is adjustably arranged.
6. air conditioner indoor unit (1) according to claim 5, which is characterized in that
The air conditioner indoor unit (1) further includes the first wind deflector (161) at first return air inlet (111), and described the
One wind deflector (161) adjustable angle saves land setting to adjust the return air amount of first return air inlet (111)；And/or
The air conditioner indoor unit (1) further includes the second wind deflector (162) at second return air inlet (112), and described the
Two wind deflectors (162) adjustable angle saves land setting to adjust the return air amount of second return air inlet (112).
7. air conditioner indoor unit (1) according to claim 5, which is characterized in that
First return air inlet includes more than two first sub- return air inlets independent and to be opened/closed；And/or
Second return air inlet includes more than two second sub- return air inlets independent and to be opened/closed.
8. air conditioner indoor unit (1) according to any one of claim 1 to 7, which is characterized in that the air conditioner indoor unit
It (1) further include regenerative structure (14), the regenerative structure (14) is located at first indoor heat exchanger (12) and the second Room
On air duct between interior heat exchanger (17) to the air outlet (113).
9. air conditioner indoor unit (1) according to claim 8, which is characterized in that the regenerative structure (14) is located at the shell
Rear side in body (11).
10. air conditioner indoor unit (1) according to claim 8, which is characterized in that the regenerative structure (14) includes that phase transformation stores
Hot material layer.
11. air conditioner indoor unit (1) according to any one of claim 1 to 7, which is characterized in that the air conditioner indoor unit
It further include auxiliary throttling set (18), first indoor heat exchanger (12), the auxiliary throttling set (18) and described second
Indoor heat exchanger (17) is connected in series.
12. a kind of air-conditioner set, including air conditioner indoor unit, compressor (2), four-way valve (3), outdoor heat exchanger (4) and main throttling
Device (5), which is characterized in that the air conditioner indoor unit is the air conditioner indoor unit according to any one of claims 1 to 10
(1), the compressor (2), the four-way valve (3), the outdoor heat exchanger (4), the main throttling set (5), described first
Indoor heat exchanger (12) and second indoor heat exchanger (17) are connected as coolant loop, switch the work of the four-way valve (3)
Position can be such that the air-conditioner set switches between cooling condition and heating condition, wherein under the cooling condition, described
One indoor heat exchanger (12) is used as evaporator, and the outdoor heat exchanger (4) is used as condenser, described under the heating condition
First indoor heat exchanger (12) is used as condenser, and the outdoor heat exchanger (4) is used as evaporator.
13. air-conditioner set according to claim 12, which is characterized in that the air-conditioner set further includes auxiliary throttling set
(18), the compressor (2), the first interface (31) of the four-way valve (3), the second interface (32) of the four-way valve (3), institute
State the first indoor heat exchanger (12), the auxiliary throttling set (18), second indoor heat exchanger (17), the main throttling dress
Set (5), the outdoor heat exchanger (4), the third interface (33) of the four-way valve (3) and the four-way valve (3) the 4th interface
(34) it is sequentially connected with as the coolant loop.
14. air-conditioner set according to claim 12, which is characterized in that the compressor (2), the four-way valve (3)
First interface (31), the second interface (32) of the four-way valve (3), first indoor heat exchanger (12), the main throttling dress
Set (5), the outdoor heat exchanger (4), the third interface (33) of the four-way valve (3) and the four-way valve (3) the 4th interface
(34) it is sequentially connected with as the major loop of the coolant loop, second indoor heat exchanger (17) and the outdoor heat exchanger (4)
Parallel connection, and second indoor heat exchanger (17) and the major loop have access state and off-state.
15. a kind of control method of air-conditioner set described in claim 12, which is characterized in that the control method include:
During the air-conditioner set defrosting process and/or anti-cold wind, makes the air-conditioner set work under the cooling condition, make institute
The second indoor heat exchanger (17) are stated as condenser, first return air inlet (111) is closed, opens second return air inlet
(112), indoor fan (13) operating.
16. the control method of air-conditioner set according to claim 15, which is characterized in that the control method include:
When the air-conditioner set dehumidifies, makes the air-conditioner set work under the cooling condition, make second indoor heat exchanger
(17) it is used as condenser, opens first return air inlet (111) and second return air inlet (112), the indoor fan (13)
Operating.
17. the control method of air-conditioner set according to claim 15, which is characterized in that the air-conditioner set further includes auxiliary
Help throttling set (18), the compressor (2), the first interface (31) of the four-way valve (3), the four-way valve (3) second
Interface (32), first indoor heat exchanger (12), the auxiliary throttling set (18), second indoor heat exchanger (17),
The main throttling set (5), the outdoor heat exchanger (4), the four-way valve (3) third interface (33) and the four-way valve
(3) the 4th interface (34) is sequentially connected with as coolant loop, and the control method includes: to defrost process in the air-conditioner set
And/or during anti-cold wind, the main throttling set (5) is fully opened and the auxiliary throttling set (18) throttling is so that described
Second indoor heat exchanger (17) is used as condenser.
18. the control method of air-conditioner set according to claim 17, which is characterized in that heated in the air-conditioner set
When, make the air-conditioner set work under the heating condition, first return air inlet (111) and second return air inlet
(112) it opens, the main throttling set (5) throttles and the auxiliary throttling set (18) fully opens, so that described second
Indoor heat exchanger (17) is used as condenser, indoor fan (13) operating.
19. the control method of air-conditioner set according to claim 17, which is characterized in that freeze in the air-conditioner set
When, make the air-conditioner set work under the cooling condition, first return air inlet (111) and second return air inlet
(112) it opens, the main throttling set (5) throttles and the auxiliary throttling set (18) fully opens, so that described second
Indoor heat exchanger (17) is used as evaporator, indoor fan (13) operating.
20. the control method of air-conditioner set according to claim 17, which is characterized in that dehumidify in the air-conditioner set
When, make the air-conditioner set work under the cooling condition, first return air inlet (111) and second return air inlet
(112) it opens, the main throttling set (5) fully opens and the auxiliary throttling set (18) throttles, so that described second
Indoor heat exchanger (17) is used as condenser, indoor fan (13) operating.
21. the control method of air-conditioner set according to claim 20, which is characterized in that throttled by changing the auxiliary
Dehumidifying effect of the air-conditioner set described in the aperture regulation of device (18) in dehumidifying.
22. the control method of air-conditioner set according to claim 15, which is characterized in that the compressor (2), described four
It is the first interface (31) of port valve (3), the second interface (32) of the four-way valve (3), first indoor heat exchanger (12), described
Main throttling set (5), the outdoor heat exchanger (4), the third interface (33) of the four-way valve (3) and the four-way valve (3)
4th interface (34) is sequentially connected with as the major loop of the coolant loop, and second indoor heat exchanger (17) is changed with the outdoor
Hot device (4) is in parallel, and second indoor heat exchanger (17) and the major loop have access state and off-state, the control
Method processed includes, during the air-conditioner set defrosts process and/or anti-cold wind, make second indoor heat exchanger (17) with
The major loop is in access state.
23. the control method of air-conditioner set according to claim 22, which is characterized in that in air-conditioner set heating
Or when air-conditioner set refrigeration, it is in an off state second indoor heat exchanger (17) with the major loop, described the
One return air inlet (111) is opened, and second return air inlet (112) opens or closes, indoor fan (13) operating.
24. the control method of air-conditioner set according to claim 23, which is characterized in that dehumidify in the air-conditioner set
When, make the air-conditioner set work under the cooling condition, makes at second indoor heat exchanger (17) and the major loop
In access state so that second indoor heat exchanger (17) is used as condenser, first return air inlet (111) is opened, and described the
Two return air inlets (112) are opened, indoor fan (13) operating.
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| CN109458699B (en) * | 2018-11-08 | 2020-08-11 | 珠海格力电器股份有限公司 | Multi-online defrosting method and device, storage medium, computer equipment and air conditioner |
| CN110398048B (en) * | 2019-07-23 | 2022-11-22 | 广东美的暖通设备有限公司 | Air conditioning system, air conditioning control method, air conditioning control device, and storage medium |
| CN110887186B (en) * | 2019-11-01 | 2020-11-06 | 珠海格力电器股份有限公司 | Method and device for controlling air outlet of unit, computer equipment and storage medium |
| CN111964242A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Drying assembly, air supply structure of air conditioner, control method and air conditioner |
| CN114076347B (en) * | 2020-08-17 | 2023-09-01 | 广东美的制冷设备有限公司 | Air conditioner, control method thereof and computer storage medium |
| CN114076383B (en) * | 2020-08-17 | 2023-05-30 | 广东美的制冷设备有限公司 | Air conditioner control method, air conditioner and computer storage medium |
| CN114396657A (en) * | 2022-01-10 | 2022-04-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Distributed air supply device, refrigeration system and control method of refrigeration system |
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