CN105352042B - Air conditioner indoor unit and air conditioner - Google Patents

Air conditioner indoor unit and air conditioner Download PDF

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Publication number
CN105352042B
CN105352042B CN201510866646.2A CN201510866646A CN105352042B CN 105352042 B CN105352042 B CN 105352042B CN 201510866646 A CN201510866646 A CN 201510866646A CN 105352042 B CN105352042 B CN 105352042B
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China
Prior art keywords
heat exchanger
air
refrigerant
valve
air conditioner
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CN105352042A (en
Inventor
姚层
陈钦文
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Shenzhen Skyworth Air Conditioning Technology Co Ltd
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Shenzhen Skyworth Air Conditioning Technology Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units

Abstract

The present invention discloses a kind of air conditioner indoor unit and air conditioner, wherein, air conditioner indoor unit includes indoor fan, First Heat Exchanger and the second heat exchanger in the air duct of the air conditioner indoor unit, the first end of First Heat Exchanger is connected to by first segment flow tube with outdoor heat exchanger, and the second end of First Heat Exchanger is connected to the four-way valve of air-conditioner outdoor unit;The first end of second heat exchanger and the pipeline connection of air-conditioner outdoor unit are to receive high temperature refrigerant;First Heat Exchanger sweat cooling for the reception low temperature refrigerant in constant temperature dehumidification, so that the air cooling-down by the First Heat Exchanger dehumidifies;Second heat exchanger is warming up to room temperature by second heat exchanger to flow through the low temperature dry air of the First Heat Exchanger for receiving high temperature refrigerant and condensing heating.Technical solution of the present invention can reach the purpose of constant temperature dehumidification by the setting of the second heat exchanger and the change of corresponding pipeline, there is no increase energy consumption, energy conservation and environmental protection in constant temperature dehumidification.

Description

Air conditioner indoor unit and air conditioner
Technical field
The present invention relates to air conditioner dehumidifying technology field, in particular to a kind of air conditioner indoor unit and air conditioner.
Background technique
With technology and expanding economy, user steps up the functional requirement of air-conditioning, traditional refrigeration, heating, The functions such as refrigerated dehumidification can no longer meet demand.Constant temperature dehumidification also gradually enters into house ornamentation application from industrial application, and exists at present The constant temperature dehumidification implementation applied on air-conditioning is mainly to be added after humid air dehumidifies via evaporator refrigeration by electric heating heating Heat, to flow through the air constant temperature dehumidification of air conditioner indoor unit.However, can so have the following problems: by electric heating to air Heat temperature raising is carried out, the energy consumption of consumption is larger, to increase the use cost of user.
Summary of the invention
The main object of the present invention is to provide a kind of air conditioner indoor unit, it is intended to when reducing air conditioner indoor unit progress constant temperature dehumidification Energy consumption.
To achieve the above object, air conditioner indoor unit proposed by the present invention, including being located in the air duct of the air conditioner indoor unit Indoor fan, First Heat Exchanger and the second heat exchanger, the first end of the First Heat Exchanger passes through first segment flow tube and institute The outdoor heat exchanger connection of air-conditioner outdoor unit is stated, the second end of the First Heat Exchanger is connected to the four-way valve of air-conditioner outdoor unit; The first end of second heat exchanger and the pipeline connection of air-conditioner outdoor unit are to receive high temperature refrigerant;The First Heat Exchanger is used In in constant temperature dehumidification receive followed by the low temperature refrigerant after the outdoor heat exchanger and the first segment flow tube system of evaporating It is cold, so that the air cooling-down by the First Heat Exchanger dehumidifies;Second heat exchanger comes from for receiving in constant temperature dehumidification The high temperature refrigerant of the air-conditioner outdoor unit and condensing heating, to flow through the low temperature dry air of the First Heat Exchanger by should Second heat exchanger is warming up to room temperature.
Preferably, the first end of second heat exchanger passes sequentially through the first shut-off valve and the first two-port valve and with described four Port valve connection, to receive by the high temperature refrigerant of the refrigerant output end output of the compressor of the air-conditioner outdoor unit.
Preferably, the first end of the First Heat Exchanger is connected by the second end of the second throttle pipe and second heat exchanger It is logical, the check valve or the two or two of control piper opening and closing is equipped between second throttle pipe and the first end of the First Heat Exchanger Port valve.
Preferably, the first end of second heat exchanger and third two-port valve and third throttle pipe being arranged in parallel with The refrigerant output end of the outdoor heat exchanger is connected to.
Preferably, the second end of second heat exchanger passes sequentially through the 4th two-port valve and the second throttle pipe and with described The first end of one heat exchanger is connected to, and the second end of second heat exchanger passes through the 5th two-port valve and the air-conditioner outdoor unit Low temperature refrigerant, is delivered to the refrigerant recovering end of the compressor of the air-conditioner outdoor unit by four-way valve connection.
Preferably, the first end of second heat exchanger and the 6th two-port valve and third throttle pipe being arranged in parallel with 7th shut-off valve connection, with the high temperature refrigerant that the refrigerant output end received by the outdoor heat exchanger exports, the first throttle Pipe is connect with the 7th shut-off valve.
Preferably, the second end of second heat exchanger passes sequentially through the 7th two-port valve and the second throttle pipe and with described The first end of one heat exchanger is connected to, and the second end of second heat exchanger passes through the 8th two-port valve and the air-conditioner outdoor unit Low temperature refrigerant, is delivered to the refrigerant recovering end of the compressor of the air-conditioner outdoor unit by four-way valve connection.
Preferably, the First Heat Exchanger closes on the air intake vent of the air conditioner indoor unit, and second heat exchanger closes on institute State the air outlet of air conditioner indoor unit.
The present invention also proposes a kind of air conditioner, including air conditioner indoor unit, which includes being located at the air conditioning chamber Indoor fan, First Heat Exchanger and the second heat exchanger in the air duct of interior machine, the first end of the First Heat Exchanger pass through the One throttle pipe is connected to the outdoor heat exchanger of the air-conditioner outdoor unit, the second end of the First Heat Exchanger and air-conditioner outdoor unit Four-way valve connection;The first end of second heat exchanger and the pipeline connection of air-conditioner outdoor unit are to receive high temperature refrigerant;It is described First Heat Exchanger is used to receive in constant temperature dehumidification followed by the low temperature after the outdoor heat exchanger and the first segment flow tube Refrigerant and sweat cooling, so that the air cooling-down by the First Heat Exchanger dehumidifies;Second heat exchanger in constant temperature for removing The high temperature refrigerant from the air-conditioner outdoor unit and condensing heating are received when wet, to flow through the low temperature drying of First Heat Exchanger 10 Air is warming up to room temperature by second heat exchanger.
Technical solution of the present invention in the air duct of air conditioner indoor unit by using being arranged the second heat exchanger and its corresponding progress Pipeline change, realizes the purpose of constant temperature dehumidification.Specifically, air conditioner indoor unit, in constant temperature dehumidification, high temperature refrigerant is successively via room Low temperature refrigerant is formed after external heat exchanger and first segment flow tube and enters First Heat Exchanger sweat cooling, passes through the first heat exchange The air at room temperature of device dehumidifies because of refrigeration.Air themperature is lower than room temperature at this time.Meanwhile it being received by the second heat exchanger by air conditioning chamber The high temperature refrigerant of outer machine and condensing heating, make the dry air lower than room temperature be warming up to room temperature after flowing through the second heat exchanger, and reach To the purpose of constant temperature dehumidification.The setting of the second heat exchanger and the change of corresponding pipeline are relied solely on, that is, can reach constant temperature dehumidification Purpose, in constant temperature dehumidification there is no increase energy consumption, energy conservation and environmental protection.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the pipeline connecting figure of the first embodiment of the air condition of that present invention;
Fig. 2 is the pipeline connecting figure of the second embodiment of the air condition of that present invention;
Fig. 3 is the pipeline connecting figure of the 3rd embodiment of the air condition of that present invention.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present 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 embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result, Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model Within enclosing.
The present invention proposes a kind of air conditioner indoor unit.
Referring to figs. 1 to the pipeline connecting figure for the first embodiment that 3, Fig. 1 is the air condition of that present invention;Fig. 2 is air-conditioning of the present invention The pipeline connecting figure of the second embodiment of device;Fig. 3 is the pipeline connecting figure of the 3rd embodiment of the air condition of that present invention.
As shown in Figures 1 to 3, air conditioner indoor unit 100 proposed by the present invention, including being located in the air duct of air conditioner indoor unit 100 Indoor fan 101, First Heat Exchanger 10 and the second heat exchanger 20, the first end 11 of First Heat Exchanger passes through first throttle Pipe 31 is connected to the outdoor heat exchanger 220 of air-conditioner outdoor unit 200, second end 12 and the air-conditioner outdoor unit 200 of First Heat Exchanger Four-way valve 210 is connected to;The first end 21 of second heat exchanger and the pipeline connection of air-conditioner outdoor unit 200 are to receive high temperature refrigerant; First Heat Exchanger 10 is used to receive in constant temperature dehumidification followed by the low temperature cold after outdoor heat exchanger 220 and first segment flow tube 31 Matchmaker and sweat cooling, so that the air cooling-down by the First Heat Exchanger 10 dehumidifies;Second heat exchanger 20 is used in constant temperature dehumidification When receive the high temperature refrigerant from air-conditioner outdoor unit 200 and condensing heating, it is empty with the low temperature drying for flowing through First Heat Exchanger 10 Gas is warming up to room temperature by second heat exchanger 20.
Technical solution of the present invention in the air duct of air conditioner indoor unit 100 by being arranged the second heat exchanger 20 and its corresponding progress Pipeline change, realizes the purpose of constant temperature dehumidification.Specifically, air conditioner indoor unit 100 is in constant temperature dehumidification, high temperature refrigerant successively via Low temperature refrigerant is formed after outdoor heat exchanger 220 and first segment flow tube 31 and enters 10 sweat cooling of First Heat Exchanger, so that stream Air at room temperature through First Heat Exchanger 10 dehumidifies because of refrigeration.Air themperature is lower than room temperature at this time.Meanwhile passing through the second heat exchanger 20 receive the high temperature refrigerant of air-conditioner outdoor units 200 and condensing heating, and the dry air lower than room temperature is made to flow through the second heat exchanger 20 After be warming up to room temperature, and achieve the purpose that constant temperature dehumidification.The present invention rely solely on the second heat exchanger 20 setting and corresponding pipe The change on road can reach the purpose of constant temperature dehumidification, there is no increase energy consumption, energy conservation and environmental protection in constant temperature dehumidification.
In the first embodiment of the present invention, referring to Fig. 1, the first end 21 of the second heat exchanger 20 passes sequentially through first section Only valve 41 and the first two-port valve 51 and be connected to four-way valve 210, with receive by the air-conditioner outdoor unit 200 compressor refrigerant The high temperature refrigerant that output end 231 exports.In this way, the second heat exchanger 20 can be received directly by the compressor of air-conditioner outdoor unit 200 The high temperature refrigerant of refrigerant output end 231.
Preferably, the first end 11 of First Heat Exchanger is connected by the second end 22 of the second throttle pipe 32 and the second heat exchanger It is logical, the check valve 60 or the two or two of control piper opening and closing is equipped between the second throttle pipe 32 and the first end 11 of First Heat Exchanger 10 Port valve (does not indicate).The second two-port valve or check valve 60, which is arranged, can avoid in low temperature refrigerant reverse flow to the second throttle pipe 32.
Specifically, referring to Fig. 1, the output end of the compressor 230 of air-conditioner outdoor unit 200 exports high in constant temperature dehumidification Warm high-pressure gaseous refrigerant (about 80~90 DEG C) is to four-way valve 210, and via shunting after four-way valve 210, one high pressure gaseous is cold It after matchmaker is via the condensation cooling of outdoor heat exchanger 220, is formed cryogenic high pressure gaseous coolant (about 35~40 DEG C), is passing through first throttle After 31 reducing pressure by regulating flow of pipe, formed low-temp low-pressure liquid refrigerants (about 10~15 DEG C), which flows through second section It is only evaporated after valve 42 into the First Heat Exchanger 10 of air conditioner indoor unit 100, damp and hot air at room temperature (temperature T1, about 24 DEG C) warp Refrigerated dehumidification after First Heat Exchanger 10 is crossed, dry Cryogenic air (temperature T2, about 20 DEG C) is formed;Another strand of high temperature height simultaneously Pressure gaseous coolant (about 80~90 DEG C) is passed through via being flowed into the second heat exchanger 20 after the first two-port valve 51 and the first shut-off valve 41 Cross the refrigerant condensation cooling of the second heat exchanger 20, the outside heating of the second heat exchanger 20, (temperature is so that dry Cryogenic air T2, about 20 DEG C) after heating (temperature T3, about 24 DEG C) it is same or similar with T1, then via the outlet air of air conditioner indoor unit 100 Mouth blowout, completes the function of constant temperature dehumidification.Finally, second end 12 of the refrigerant via First Heat Exchanger 10, third shut-off valve 43, four The refrigerant recovering end 232 of compressor is returned to after port valve 210.
It will be appreciated that above-mentioned temperature values are a kind of embodiments for understanding refrigerant flow temperature for convenience, Its temperature range can also be other numerical value, as long as reaching the function of constant temperature dehumidification using structure of the invention, in this hair In bright protection scope.
It in a second embodiment, referring to figure 2., is the air conditioner 300 for adapting to different model, pipeline of the invention can be with Do arranged below: the first end 21 of the second heat exchanger 20 and the third two-port valve 53 and third throttle pipe 33 being arranged in parallel with The refrigerant output end of outdoor heat exchanger 220 is connected to.Because third throttle pipe 33 and third two-port valve 53 are arranged in parallel, removed in constant temperature Openable third two-port valve 53 when wet, the refrigerant for flowing through third throttle pipe 33 at this time is seldom, (about by the gaseous coolant of cryogenic high pressure 35~40 DEG C) it is input in the second heat exchanger 20 and is condensed;In refrigeration or heating, third two-port valve 53 can be closed, the Two heat exchangers 20 can be served the same role with First Heat Exchanger 10, improve the ability of the refrigeration of air conditioner indoor unit 100 or heating.
Preferably, the switching of the second heat exchanger 20 uses function for convenience, and the second end 22 of the second heat exchanger passes sequentially through 4th two-port valve 54 and the second throttle pipe 32 and be connected to the first end of First Heat Exchanger 11, and the second end 22 of the second heat exchanger It is connected to by the 5th two-port valve 55 with the four-way valve 210 of air-conditioner outdoor unit 200, low temperature refrigerant is delivered to outside the air conditioning chamber The refrigerant recovering end 232 of the compressor of machine 200.
Specifically, referring to Fig. 2, third two-port valve 53 and the 4th two-port valve 54 close when air conditioner 300 freezes or heats It closes, the 5th two-port valve 55 is opened.When refrigeration, refrigerant enters outdoor heat exchanger 220 by four-way valve 210 from compressor 230, passes through It is further separated into first segment flow tube 31 in parallel, third throttle pipe 33, and corresponding by the 4th shut-off valve 44 and the 5th shut-off valve 45 First Heat Exchanger 10 and the second heat exchanger 20 are entered, converges after being evaporated refrigeration and returns to compressor via the 6th shut-off valve 46 230;When heating, refrigerant enters in parallel first by the commutation of four-way valve 210, via the 6th shut-off valve 46 from compressor 230 Heat exchanger 10 and the second heat exchanger 20 realize condensing heating indoors, then pass through first segment flow tube 31 in parallel, third throttle pipe 33, compressor 230 is returned to finally by outdoor heat exchanger 220.
When system opens constant temperature dehumidification, third two-port valve 53 and the 4th two-port valve 54 are opened, and the 5th two-port valve 55 is closed. Refrigerant enters outdoor heat exchanger 220 by four-way valve 210 from compressor 230, and part refrigerant passes through first segment flow tube 31 after shunting Decompression enters First Heat Exchanger 10, and part refrigerant enters the second heat exchanger 20 by third two-port valve 53 and third throttle pipe 33, Since third two-port valve 53 and third throttle pipe 33 are in parallel, reducing pressure by regulating flow will not be played herein, room air is changed via first Hot 10 sweat cooling of device dehumidifying and the condensation heating of the second heat exchanger 20, realize constant-temperature dehumidifying function.
In the third embodiment, referring to Fig. 3, the second heat exchanger 20 and pipeline can be arranged as follows: the second heat exchanger 20 First end 21 be connected to and the 6th two-port valve 56 and third throttle pipe 33 being arranged in parallel with the 7th shut-off valve 47, with receive The high temperature refrigerant exported by the refrigerant output end of the outdoor heat exchanger 220, first segment flow tube 31 are connected to the 7th shut-off valve 47.
Preferably, the second end 22 of the second heat exchanger 20 passes sequentially through the 7th two-port valve 57 and the second throttle pipe 32 and with The first end 11 of one heat exchanger 10 is connected to, and the second end 22 of the second heat exchanger 20 passes through the 8th two-port valve 58 and air-conditioner outdoor unit 200 four-way valve 210 is connected to, and low temperature refrigerant is delivered to the refrigerant recovering end of the compressor of the air-conditioner outdoor unit 200 232。
Specifically, referring to Fig. 3, the 6th two-port valve 56 and the 7th two-port valve 57 close when air conditioner 300 freezes or heats It closes, the 8th two-port valve 58 is opened.When refrigeration, refrigerant enters outdoor heat exchanger 220 by four-way valve 210 from compressor 230, then Via first segment flow tube 31, the third throttle pipe 33 for being further separated into parallel connection after the 7th shut-off valve 47, and correspondence enters first and changes Hot device 10 and the second heat exchanger 20 converge after being evaporated refrigeration and return to compressor 230 via the 8th shut-off valve 48;When heating, Refrigerant enters in parallel First Heat Exchanger 10 and the from compressor 230 by the commutation of four-way valve 210, via the 8th shut-off valve 48 Two heat exchangers 20 realize condensing heating, then the first segment flow tube 31 by parallel connection, third throttle pipe 33 indoors, finally by Outdoor heat exchanger 220 returns to compressor 230.
When system opens constant temperature dehumidification, the 6th two-port valve 56 and the 7th two-port valve 57 are opened, and the 8th two-port valve 58 is closed. Refrigerant enters outdoor heat exchanger 220, via shunting after the 7th shut-off valve 47, part refrigerant by four-way valve 210 from compressor 230 Enter First Heat Exchanger 10 by the decompression of first segment flow tube 31, part refrigerant by the 6th two-port valve 56 and third throttle pipe 33 into Enter the second heat exchanger 20, since the 6th two-port valve 56 and third throttle pipe 33 are in parallel, reducing pressure by regulating flow will not be played herein, it is indoor Air realizes constant-temperature dehumidifying function via the dehumidifying of 10 sweat cooling of First Heat Exchanger and the condensation heating of the second heat exchanger 20.
In the present invention, First Heat Exchanger 10 closes on the air intake vent of air conditioner indoor unit 100, and the second heat exchanger 20 closes on air-conditioning The air outlet of indoor unit 100.In this way, the abundant constant temperature dehumidification of air in the air duct of air conditioner indoor unit 100 can be made.
The present invention also proposes a kind of air conditioner 300, which includes air conditioner indoor unit 100, the air conditioner indoor unit 100 specific structure is referring to above-described embodiment, since this air conditioner 300 uses whole technical sides of above-mentioned all embodiments Case, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, this is no longer going to repeat them.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly It is included in other related technical areas in scope of patent protection of the invention.

Claims (4)

1. a kind of air conditioner indoor unit, which is characterized in that including be located at the air conditioner indoor unit air duct in indoor fan, first The first end of heat exchanger and the second heat exchanger, the First Heat Exchanger passes through first segment flow tube and the air-conditioner outdoor unit Outdoor heat exchanger connection, the second end of the First Heat Exchanger are connected to the four-way valve of air-conditioner outdoor unit;Second heat exchanger First end and air-conditioner outdoor unit pipeline connection to receive high temperature refrigerant;
The First Heat Exchanger is used to receive in constant temperature dehumidification followed by the outdoor heat exchanger and the first segment flow tube Low temperature refrigerant and sweat cooling afterwards, so that the air cooling-down by the First Heat Exchanger dehumidifies;
Second heat exchanger condensing heating for high temperature refrigerant of the reception from the air-conditioner outdoor unit in constant temperature dehumidification, Room temperature is warming up to by second heat exchanger to flow through the low temperature dry air of the First Heat Exchanger;
The first end of second heat exchanger is changed and the third two-port valve and third throttle pipe being arranged in parallel with the outdoor The refrigerant output end of hot device is connected to;
The second end of second heat exchanger pass sequentially through the 4th two-port valve and the second throttle pipe and with the First Heat Exchanger First end connection, and the second end of second heat exchanger is connected by the four-way valve of the 5th two-port valve and the air-conditioner outdoor unit It is logical, low temperature refrigerant is delivered to the refrigerant recovering end of the compressor of the air-conditioner outdoor unit;
Alternatively, the first end of second heat exchanger and the 6th two-port valve and third throttle pipe being arranged in parallel with the 7th section Only valve is connected to, with the high temperature refrigerant that the refrigerant output end received by the outdoor heat exchanger exports, the first segment flow tube and institute State the connection of the 7th shut-off valve;
The second end of second heat exchanger pass sequentially through the 7th two-port valve and the second throttle pipe and with the First Heat Exchanger First end connection, and the second end of second heat exchanger is connected by the four-way valve of the 8th two-port valve and the air-conditioner outdoor unit It is logical, low temperature refrigerant is delivered to the refrigerant recovering end of the compressor of the air-conditioner outdoor unit.
2. air conditioner indoor unit as described in claim 1, which is characterized in that the first end of second heat exchanger passes sequentially through One shut-off valve and the first two-port valve and be connected to the four-way valve, with receive it is defeated by the refrigerant of the compressor of the air-conditioner outdoor unit The high temperature refrigerant of outlet output.
3. air conditioner indoor unit as claimed in claim 1 or 2, which is characterized in that the First Heat Exchanger closes on the air conditioning chamber The air intake vent of interior machine, second heat exchanger close on the air outlet of the air conditioner indoor unit.
4. a kind of air conditioner, which is characterized in that including air conditioner indoor unit as claimed any one in claims 1 to 3.
CN201510866646.2A 2015-11-27 2015-11-27 Air conditioner indoor unit and air conditioner Active CN105352042B (en)

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