CN109416189A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN109416189A CN109416189A CN201780010892.5A CN201780010892A CN109416189A CN 109416189 A CN109416189 A CN 109416189A CN 201780010892 A CN201780010892 A CN 201780010892A CN 109416189 A CN109416189 A CN 109416189A
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- CN
- China
- Prior art keywords
- heat exchanger
- indoor heat
- indoor
- control unit
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the 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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/48—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The present invention provides a kind of air conditioner, can suitably clean indoor heat exchanger.Air conditioner (100) has: the coolant loop (Q) that refrigerant is successively recycled via compressor (31), condenser, outdoor expansion valve (34) and evaporator in refrigerating cycle；And control unit, at least control compressor (31) and outdoor expansion valve (34).A side in above-mentioned condenser and evaporator is outdoor heat exchanger (32), and another party is at least part of indoor heat exchanger (12).Control unit successively carries out the defrosting of the lower part of the freezing of indoor heat exchanger (12), the defrosting on the top of indoor heat exchanger (12) and indoor heat exchanger (12).
Description
Technical field
The present invention relates to a kind of air conditioners.
Background technique
As the technology for the indoor heat exchanger clean conditions for making air conditioner, such as " tool is described in patent document 1
Prepare the moisture given unit for making water be attached to the fin surface after heat run " air conditioner.In addition, above-mentioned moisture assigns list
Member makes water be attached to the fin surface of indoor heat exchanger by carrying out refrigeration operation after heating operation.
Existing technical literature
Patent document
Patent document 1: No. 4931566 bulletins of Japanese Patent Publication No.
Summary of the invention
Subject to be solved by the invention
However, in the technology described in patent document 1, being attached to the water drippage of the fin surface of indoor heat exchanger
When, it there may come a time when that the lower part of heat exchanger indoors remains dirt.
Therefore, problem of the present invention is that, a kind of air conditioner that can suitably clean indoor heat exchanger is provided.
Means for solving the problems
In order to solve the above problems, it is a feature of the present invention that control unit successively carries out the freezing of indoor heat exchanger, institute
State the defrosting of the defrosting on the top of indoor heat exchanger and the lower part of the indoor heat exchanger.
In addition, it is a feature of the present invention that the 1st indoor heat exchanger on the top as indoor heat exchanger and as institute
The 2nd indoor heat exchanger for stating the lower part of indoor heat exchanger is connected via the 2nd expansion valve, and control unit makes the 2nd expansion valve
The 1st indoor heat exchanger of upstream side functioned as condenser, make the described of the downstream side of the 2nd expansion valve
2nd indoor heat exchanger is functioned as evaporator, freeze the 2nd indoor heat exchanger.
Invention effect
In accordance with the invention it is possible to provide a kind of air conditioner that can suitably clean indoor heat exchanger.
Detailed description of the invention
Fig. 1 is the master of indoor unit, outdoor unit and remote controler that the air conditioner of first embodiment of the invention has
View.
Fig. 2 is the longitudinal section for the indoor unit that the air conditioner of first embodiment of the invention has.
Fig. 3 is the explanatory diagram for indicating the coolant loop of air conditioner of first embodiment of the invention.
Fig. 4 is the functional block diagram of the air conditioner of first embodiment of the invention.
Fig. 5 is the flow chart for the cleaning treatment that the control unit of the air conditioner of first embodiment of the invention executes.
Fig. 6 is indicated in the air conditioner of first embodiment of the invention, and kitchen is present in pressure when being conditioned space
The explanatory diagram of the driving condition of contracting machine and indoor fan.
Fig. 7 is indicated in the air conditioner of first embodiment of the invention, the place for freezing indoor heat exchanger
The flow chart of reason.
Fig. 8 is the explanatory diagram for indicating the coolant loop of air conditioner of second embodiment of the present invention.
Fig. 9 is the flow chart for the cleaning treatment that the control unit of the air conditioner of second embodiment of the present invention executes.
Specific embodiment
" first embodiment "
The structure > of < air conditioner
Fig. 1 be the air conditioner 100 of first embodiment have indoor unit 10, outdoor unit 30 and remote controler 40 master
View.
Air conditioner 100 is to carry out the machine of air conditioning by recycling refrigerant in refrigerating cycle (heat pump cycle)
Device.Air conditioner 100 have the indoor unit 10 for being set to indoor (being conditioned space), the outdoor unit 30 being set to outside room and by with
The remote controler 40 of family operation.
As shown in Figure 1, indoor unit 10 has remote controler transmission and reception unit 11.Remote controler transmission and reception unit 11 passes through infrared ray
Communication etc. transmits and receives scheduled signal between remote controler 40.For example, remote controler transmission and reception unit 11 is received from remote controler 40
The signals such as operating/halt instruction, the change of set temperature, the change of operation mode, the setting of timer.In addition, remote controler is sent out
Send receiving unit 11 that detected value of room temperature etc. is sent to remote controler 40.
In addition, omitted in Fig. 1, but indoor unit 10 is connected with outdoor unit 30 via coolant piping, and via
Communication line connection.
Fig. 2 is the longitudinal section of indoor unit 10.
Indoor unit 10 other than above-mentioned remote controler transmission and reception unit 11 (referring to Fig.1), be also equipped with indoor heat exchanger 12,
Condensate drain pan (drain pan) 13, indoor fan 14, housing base 15, filter 16,16, front panel 17, left and right wind direction plate
18, up-down wind direction board 19.
Indoor heat exchanger 12 is the heat that heat exchange is carried out between the refrigerant and room air to circulate in its heat-transfer pipe 12g
Exchanger.
Condensate drain pan 13 receives the water dripped from indoor heat exchanger 12, is configured in the downside of indoor heat exchanger 12.
In addition, the water for dropping onto condensate drain pan 13 is discharged to outside via drainpipe (not shown).
Indoor fan 14 is, for example, cylindric cross flow fan, is driven by indoor fan motor 14a (referring to Fig. 4)
It is dynamic.
Housing base 15 is the shell that the equipment such as indoor heat exchanger 12, indoor fan 14 are arranged.
Filter 16,16 removes dust from via the air of the suckings such as air suction inlet h1, is arranged on indoor heat exchange
Upside/front side of device 12.
Front panel 17 is configured to the panel of the filter 16 of covering front side, can rotate by axial front side of lower end.
Alternatively, it is also possible to being structure that front panel 17 does not rotate.
Left and right wind direction plate 18 is the plate-shaped member that will be adjusted in the lateral direction to the wind direction of the air of indoor blowout.Left and right
Wind direction board 18 is configured in the downstream side of indoor fan 14, passes through left and right wind direction plate motor 21 (referring to Fig. 4) right to the left
To rotation.
Up-down wind direction board 19 is the plate-shaped member that will be adjusted in the up-down direction to the wind direction of the air of indoor blowout.Up and down
Wind direction board 19 is configured in the downstream side of indoor fan 14, by up-down wind direction board with motor 22 (referring to Fig. 4) to upper and lower
To rotation.
Heat exchange is carried out with the refrigerant to circulate in heat-transfer pipe 12g via the air of air suction inlet h1 sucking, carries out heat
Air after exchange is directed into blowout wind path h2.The air to circulate in blowout wind path h2 passes through left and right wind direction plate 18 and upper
Lower wind direction board 19 is directed to predetermined direction, also, is blown out to interior via air blow-off outlet h3.
Fig. 3 is the explanatory diagram for indicating the coolant loop Q of air conditioner 100.
In addition, Fig. 3 solid arrow indicate heating operation when or refrigerant when reheat dehumidification flowing.
In addition, the flowing of the refrigerant when dotted arrow expression refrigeration operation of Fig. 3.
Indoor unit 10 shown in Fig. 3 in addition to the above described configuration, is also equipped with indoor expansion valve V (the 2nd expansion valve).In addition,
Indoor heat exchanger 12 has the 1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b.Also, the 1st indoor heat exchanger
12a and the 2nd indoor heat exchanger 12b is connected with each other via indoor expansion valve V.
As shown in figure 3, the 1st indoor heat exchanger 12a is located at the upside of the 2nd indoor heat exchanger 12b.That is, the 1st
Indoor heat exchanger 12a is the top of indoor heat exchanger 12.In addition, the 2nd indoor heat exchanger 12b is indoor heat exchanger 12
Lower part.
As shown in figure 3, outdoor unit 30 has compressor 31, outdoor heat exchanger 32, outdoor fan 33, outdoor expansion valve 34
(the 1st expansion valve) and four-way valve 35.
Compressor 31 is to be compressed the gas coolant of low-temp low-pressure by the driving of air compressor motor 31a, as
The gas coolant of high temperature and pressure and the equipment being discharged.
Outdoor heat exchanger 32 is the refrigerant to circulate in its heat-transfer pipe (not shown) and is sent into from outdoor fan 33 outer
The heat exchanger of heat exchange is carried out between portion's air.
Outdoor fan 33 is to be sent into outside air to outdoor heat exchanger 32 by the driving of outdoor fan motor 33a
Fan, be arranged near outdoor heat exchanger 32.
Outdoor expansion valve 34 has the function of being depressurized to refrigerant, is arranged on connection outdoor heat exchanger 32 and the 2nd
On the coolant piping J of indoor heat exchanger 12b.
Four-way valve 35 is the valve for switching the flow path of refrigerant according to the operation mode of air conditioner 100.For example, in refrigeration operation
When (referring to dotted arrow), successively via compressor 31, outdoor heat exchanger 32 (condenser), outdoor swollen in coolant loop Q
Heat exchange in swollen valve 34, the 2nd indoor heat exchanger 12b (evaporator), the indoor expansion valve V of substantially full-gear and Room the 1st
Device 12a (evaporator), refrigerant is recycled in refrigeration cycle.
In addition, in heating operation (referring to solid arrow), successively via in compressor 31, Room the 1st in coolant loop Q
Heat exchanger 12a (condenser), the indoor expansion valve V of substantially full-gear, the 2nd indoor heat exchanger 12b (condenser), outdoor
Expansion valve 34 and outdoor heat exchanger 32 (evaporator), refrigerant in refrigeration cycle to be recycled.
In addition, in so-called reheat dehumidification (referring to solid arrow), in coolant loop Q successively via compressor 31,
1st indoor heat exchanger 12a (condenser), indoor expansion valve V, the 2nd indoor heat exchanger 12b (evaporator), substantially standard-sized sheet shape
The outdoor expansion valve 34 and outdoor heat exchanger 32 (evaporator) of state, refrigerant is recycled in refrigeration cycle.In addition, again
When heat dehumidifying, indoor expansion valve V is suitably throttled.
Fig. 4 is the functional block diagram of air conditioner 100.
Indoor unit 10 shown in Fig. 4 in addition to the above described configuration, is also equipped with shoot part 23, environment detecting portion operable 24, indoor control
Circuit 25 processed.
23 pairs of interiors of shoot part are shot, and have ccd sensor (Charge Coupled Device: charge-coupled device
Part), cmos sensor (Complementary Metal Oxide Semiconductor: complementary metal oxide semiconductor)
Equal capturing elements.According to the shooting result of the shoot part 23, indoor people is present in by the detection of indoor control circuit 25.Separately
Outside, it includes shoot part 23 and indoor control circuit 25 that detection, which is present in " the people's test section " of the people of indoor (being conditioned space),.
Environment detecting portion operable 24 has the function of detecting the equipment state of indoor design condition, indoor unit 10.As shown in figure 4, environment
Test section 24 has indoor temperature transmitter 24a, humidity sensor 24b, indoor heat exchanger temperature sensor 24c.
Indoor temperature transmitter 24a is the sensor for detecting room temperature, is arranged on the predetermined position (example of indoor unit 10
Such as, the air sucking side of filter 16,16 shown in Fig. 2).
Humidity sensor 24b is the sensor for detecting the humidity of room air, is arranged on the predetermined position of indoor unit 10.
Indoor heat exchanger temperature sensor 24c is the sensor for detecting the temperature of indoor heat exchanger 12 (referring to Fig. 2),
It is arranged on indoor heat exchanger 12.
The detected value of indoor temperature transmitter 24a, humidity sensor 24b and indoor heat exchanger temperature sensor 24c
It is output to indoor control circuit 25.
Though not illustrated, indoor control circuit 25 includes CPU (Central Processing Unit: central processing
Unit), ROM (Read Only Memory: read-only memory), RAM (Random Access Memory: random access memory
Device), the electronic circuits of various interfaces etc..Also, it reads program stored in ROM and is unfolded in RAM, executed by CPU each
Kind processing.
As shown in figure 4, indoor control circuit 25 has storage unit 25a and room control unit 25b.
In storage unit 25a other than scheduled program, the also inspection of the shooting result, environment detecting portion operable 24 of storage shoot part 23
Survey result, via received data of remote controler transmission and reception unit 11 etc..
Room control unit 25b executes scheduled control according to the data being stored in storage unit 25a.In addition, for interior
The processing that control unit 25b is executed, is then described.
Outdoor unit 30 in addition to the above described configuration, is also equipped with outdoor temperature sensor 36 and outdoor control circuit 37.
Outdoor temperature sensor 36 is the sensor for detecting outdoor temperature (external air temperature), is arranged on outdoor unit 30
Predetermined position.Although outdoor unit 30 is also equipped with detection compressor 31 in addition, being omitted in Fig. 4 (referring to Fig. 3)
Each sensor of inlet temperature, discharge temperature, discharge pressure etc..By the detection of each sensor comprising outdoor temperature sensor 36
Value is exported to outdoor control circuit 37.
Although not illustrated, outdoor control circuit 37 includes the electronic circuit of CPU, ROM, RAM, various interfaces etc.,
And it is connect via communication line with indoor control circuit 25.As shown in figure 4, outdoor control circuit 37 has storage unit 37a and outdoor
Control unit 37b.
In storage unit 37a other than preset program, the also detection of each sensor of the storage comprising outdoor temperature sensor 36
Value etc..
Outdoor control unit 37b is according to the data being stored in storage unit 37a, to air compressor motor 31a, outdoor fan electricity
Motivation 33a, outdoor expansion valve 34 etc. are controlled.Hereinafter, indoor control circuit 25 and outdoor control circuit 37 are referred to as " control
Portion K " processed.
Then, illustrate a series of processing for cleaning indoor heat exchanger 12 (referring to Fig. 2).
As described above, the upside, front side (air sucking side) of heat exchanger 12 are provided with for collecting dust, dirt indoors
Angstrom filter 16,16 (referring to Fig. 2).However, other than tiny dust, dust, with culinary art etc. oil possibly through
It is attached to after filter 16 on indoor heat exchanger 12.It is therefore preferable that periodic cleaning indoor heat exchanger 12.Therefore, in this reality
It applies in mode, is freezed the moisture that the air in indoor unit 10 is included by indoor heat exchanger 12, later, melt Indoor Thermal
Ice, the frost of exchanger 12, Lai Qingxi indoor heat exchanger 12.Such a series of processing is known as indoor heat exchanger 12
" cleaning treatment ".
Fig. 5 is the flow chart (suitably referring to Fig. 3, Fig. 4) for the cleaning treatment that the control unit K of air conditioner 100 is executed.
Further, it is assumed that having carried out scheduled operation of air conditioner (refrigeration operation, heating operation until when " beginning " of Fig. 5
Deng).Furthermore, it is assumed that the beginning condition of the cleaning treatment of indoor heat exchanger 12 is in " beginning " Shi Chengli.It should " cleaning treatment be opened
Beginning condition " the e.g. value obtained by the execution time of accumulative operation of air conditioner from the end of the cleaning treatment of last time has reached predetermined
It is worth such condition.
In step s101, control unit K makes operation of air conditioner stop predetermined time (for example, several minutes).Above-mentioned pre- timing
Between be time for keeping refrigerating cycle stable, be preset.The heating fortune carried out until for example, interrupting when " beginning "
Turn, and when freezing indoor heat exchanger 12 (S103), control unit K controls four-way valve 35 so that refrigerant to heating
Opposite direction flowing when operating.
In addition, also can be omitted the place of step S101 in the case that interruption refrigeration operation freezes indoor heat exchanger 12
Reason.This is because in the freezing of the direction that refrigerant flows (before starting) in refrigeration operation and heat exchanger 12 indoors
(S103) direction of refrigerant flowing is identical.
Then, in step s 102, control unit K determines that kitchen whether there is in being conditioned space.That is, control unit K according to
By the change in location of above-mentioned " people's test section " (shoot part 23 and room control unit 25b, referring to Fig. 4) people detected, to sentence
Determining kitchen whether there is in being conditioned space.
When being illustrated for step S102, firstly, shooting result of the control unit K according to shoot part 23, detection are present in
It is conditioned the people in space.Also, the height on the head of the people detected by above-mentioned " people's test section " within a predetermined range,
And in the case that this person is in left and right directions when from indoor unit 10 or longitudinal direction (in preset distance) is round-trip, control unit K sentences
It is set to this person just culinary cuisine (that is, kitchen, which is located at, is conditioned space).This is because what people was cooked in kitchen
In the case of, this person with the state stood in the lateral direction or longitudinal direction it is round-trip situation it is more.
Kitchen is present in step s 102 be conditioned space in the case where ("Yes" of S102) control unit K processing before
Enter step S103.In this case, the oil generated with the culinary art carried out in kitchen be attached to indoor heat exchanger 12 can
Energy property is higher.
In step s 103, control unit K freezes indoor heat exchanger 12.That is, control unit K make it is shown in Fig. 3
1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b freeze.When being illustrated for step S103, with refrigeration operation
When similarly, control unit K functions the 1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b as evaporator.?
In this case, indoor expansion valve V is that substantially full-gear, the aperture of outdoor expansion valve 34 is appropriately adjusted.Indoor unit 10 as a result,
The moisture that interior air is included frosting and freezes on the 1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b.Separately
Outside, the details of the processing of step S103 is then described.
Then, in step S104, control unit K carry out above-mentioned reheat dehumidification come to the top of indoor heat exchanger 12 into
Row thaws.That is, control unit K functions the 1st indoor heat exchanger 12a as condenser, make the 2nd indoor heat exchanger 12b
It is functioned as evaporator.In this case, outdoor expansion valve 34 is substantially full-gear, the aperture quilt of indoor expansion valve V
Appropriate adjustment.The 1st indoor heat exchanger 12a (top of indoor heat exchanger 12) is defrosted as a result,.In addition, the 2nd Indoor Thermal is handed over
Parallel operation 12b (lower part of indoor heat exchanger 12) is further freezed.
When the frost being attached on the 1st indoor heat exchanger 12a melts, under the water flow comprising dirts such as dust, dust, oil,
1st indoor heat exchanger 12a is rinsed.Also, the water flowed down from the 1st indoor heat exchanger 12a passes through Room the 2nd of frozen state
Inside heat exchanger 12b freezes again.That is, forming packet in the outside of the frost of the 2nd indoor heat exchanger 12b freezed
Ice sheet containing dirts such as dust, dust, oil.When the 2nd indoor heat exchanger 12b is defrosted after as a result, (S105), in Room the 1st
The ice sheet comprising dirt of heat exchanger 12a melts, and flows down with not polluting the 2nd indoor heat exchanger 12b.
Fig. 6 is to indicate that kitchen is present in saying for the driving condition of the compressor 31 and indoor fan 14 when being conditioned space
Bright figure (suitably referring to Fig. 3).
In addition, the horizontal axis of Fig. 6 is the moment.In addition, the longitudinal axis of Fig. 6 indicates the ON/OFF and indoor fan 14 of compressor 31
ON/OFF.
In the example shown in Fig. 6, scheduled operation of air conditioner is carried out until moment t1, drives compressor 31 and room
Internal fan 14 (that is, being open state).Later, stop (Fig. 5 in moment t1~t2, compressor 31 and indoor fan 14
S101).Then, in moment t2~t3, indoor heat exchanger 12 is frozen (S103), also, carries out again in moment t3~t4
Heat dehumidifying (S104).
Even if in addition, being halted state in moment t2~t3 indoor fan 14,12 vapor of heat exchanger is also tied indoors
Ice, thus the water vapour pressure in indoor unit 10 is lower, and is continued by diffusion phenomena of vapor etc. (free convection) to interior
The surface of heat exchanger 12 supplies vapor, and frost thickens.
In addition, when indoor heat exchanger 12 freezes (S103 of Fig. 5), same direction stream when refrigerant is to refrigeration operation
It is dynamic, in addition, same direction flowing when (S104) refrigerant is to heating operation when reheat dehumidification.That is, indoor heat exchange
When device 12 freezes and when reheat dehumidification, refrigerant flows contrary.However, in the present embodiment, indoor heat exchanger 12
Freeze (to be not provided with scheduled dwell time) and immediately begin to reheat dehumidification after terminating (referring to Fig. 6 at the time of t3).In other words, it controls
Portion K processed the 1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b freeze end after, immediately begin in Room the 1st
The defrosting of heat exchanger 12a.
In the state of thereby, it is possible to not melt in the frost for being attached to the 2nd indoor heat exchanger 12b, progress reheat dehumidification (when
Carve t3~t4).On the contrary, being attached to the friendship of the 1st Indoor Thermal when starting reheat dehumidification after the frost of the 2nd indoor heat exchanger 12b melts
The dirts such as dust, dust, the oil of parallel operation 12a flow down after mixing with water, and the surface of the 2nd indoor heat exchanger 12b is contaminated.Cause
This is freezing to operate between (moment t2~t3) and reheat dehumidification (moment t3~t4), may not be arranged each in the present embodiment
During the stopping of equipment.
Fig. 5 is again returned to, continues to illustrate.
In step s105, control unit K thaws the lower part of indoor heat exchanger 12.That is, control unit K is by the 2nd
Indoor heat exchanger 12b thaws.When illustrating for step S105, control unit K makes comprising compressor 31 shown in Fig. 3, room
The halted state predetermined hold-time of the equipment of external fan 33 and indoor fan 14.2nd indoor heat exchanger 12b as a result,
Ice, frost are melted naturally with room temperature.When being described in more detail, by the processing of step S104 before this in the 2nd indoor heat exchanger 12b
The ice sheet (ice sheet comprising dirts such as the dust, dust, the oil that are attached to the 1st indoor heat exchanger 12a) of upper formation is melted with room temperature
Change, drop onto condensate drain pan 13 (referring to Fig. 2).
In the inside of the ice sheet, as described above, being attached to the 2nd indoor heat exchanger in the presence of the processing by step S103
The frost of 12b.That is, the water comprising dirts such as the dust, dust, the oil that are attached to the 1st indoor heat exchanger 12a, is not straight
It connects and is flowed down along the surface of the fin (not shown) of the 2nd indoor heat exchanger 12b, but along the outer of the frost for being attached to the fin
Under effluent.Therefore, the 2nd indoor heat exchanger 12b be hardly attached to the dust of the 1st indoor heat exchanger 12a, dust,
The pollution such as oil.
Later, in the 2nd indoor heat exchanger 12b, the frost on the inside of above-mentioned ice sheet melts, and drops onto condensate drain pan 13
(referring to Fig. 2).The 2nd indoor heat exchanger 12b is also cleaned as a result,.Then, the water of condensate drain pan 13 is dropped onto via drainpipe
(not shown) is discharged to the outside.
In this way, kitchen be located at be conditioned space in the case where ("Yes" of S102), control unit K successively carries out interior heat exchange
The solution of the lower part of the defrosting (S104) and indoor heat exchanger 12 on the top for freezing (S103), indoor heat exchanger 12 of device 12
Freeze (S105).
Then, in step s 106, control unit K keeps indoor heat exchanger 12 dry.For example, control unit K is successively made
Heat run and air-supply operating, the processing as step S106.By above-mentioned heating operation, the refrigerant of high temperature flows through Indoor Thermal
Exchanger 12, therefore the water evaporation on 12 surface of indoor heat exchanger.Also, pass through the air-supply operating after heating operation, indoor unit
10 it is internally dry, therefore antibacterial, mould proof effect can be played.After the processing for carrying out step S107, control unit K terminates one
The cleaning treatment (end) of consecutive.
In the example shown in Fig. 6, moment t2~t4 successively freezed and reheat dehumidification after (the step of Fig. 5
S103, S104), (S105) is thawed in lower part of the moment t4~t5 to indoor heat exchanger 12.Later, in moment t5~t7
Heating operation and air-supply operating are successively carried out, makes indoor heat exchanger 12 dry (S106) as a result,.
In addition, in the case where being determined as that kitchen is not present in being conditioned space in the step S102 of Fig. 5 (S102's
"No") processing of control unit K advances to step S107.In this case, oil be attached to a possibility that indoor heat exchanger 12 compared with
It is low.Therefore, after control unit K in step s 107 freezes indoor heat exchanger 12, without above-mentioned reheat dehumidification, and it is preceding
Proceed to the processing of step S108.
In step S108, control unit K thaws indoor heat exchanger 12.That is, control unit K is by the 1st Indoor Thermal
Exchanger 12a and the 2nd indoor heat exchanger 12b both sides are thawed.When illustrating for step S108, control unit K makes comprising Fig. 3
Shown in compressor 31, outdoor fan 33 and indoor fan 14 equipment halted state predetermined hold-time.It is indoor as a result,
Heat exchanger 12 frost melted naturally with room temperature, therefore be attached to the dust of indoor heat exchanger 12, dust is rinsed.
In addition, kitchen is not present in ("No" of S102), the pollution of indoor heat exchanger 12 in the case where being conditioned space
It is not too much serious.Therefore, the time point completed in the processing of step S108, the lower part almost without heat exchanger 12 indoors are residual
The case where staying dirt.
After the processing for carrying out step S108, control unit K keeps indoor heat exchanger 12 dry in step S106, terminates one and connects
The cleaning treatment (end) of string.
Fig. 7 is to indicate that the flow chart of the processing (S103 of Fig. 5) for freezing indoor heat exchanger 12 (suitably refers to figure
3, Fig. 4).
In step S103a, control unit K controls four-way valve 35.That is, control unit K controls four-way valve 35,
So that outdoor heat exchanger 32 is functioned as condenser, function indoor heat exchanger 12 as evaporator.In addition,
In the case where just having carried out refrigeration operation before progress " cleaning treatment " (a series of processing shown in fig. 5), in present embodiment
In, control device maintains the state of four-way valve 35 in step S103a.
In step S103b, control unit K sets freeze-off time.Being somebody's turn to do " freeze-off time " is for making indoor heat exchanger 12
Predetermined control (S103c~S103e) duration freezed.For example, the detected value of humidity sensor 24b (referring to Fig. 4) is got over
Freeze-off time is set to shorter by height, control unit K.It is suitable required for the cleaning of indoor heat exchanger 12 thereby, it is possible to make
Moisture frosting on heat exchanger 12 indoors.In addition, the freeze-off time of indoor heat exchanger 12 is also possible to fixed value.
Then, in step S103c, control unit K sets the revolving speed of compressor 31.For example, (the ginseng of outdoor temperature sensor 36
According to Fig. 4) detected value it is higher, control unit K keeps the revolving speed of air compressor motor 31a bigger.This is because heat exchanger indoors
In order to take away heat from room air in 12, correspondingly need sufficiently to carry out the heat release in outdoor heat exchanger 32.Pass through this
Sample sets the revolving speed of compressor 31, can suitably carry out the heat exchange in outdoor heat exchanger 32, and then can also be suitably
Carry out freezing for indoor heat exchanger 12.
Then, in step S103d, control unit K adjusts the aperture of outdoor expansion valve 34.In addition, in step S103d,
It is preferred that small when the aperture of outdoor expansion valve 34 is set to than common refrigeration operation.As a result, compared to common refrigeration operation
When low-temp low-pressure refrigerant be flowed into indoor heat exchanger 12 via outdoor expansion valve 34.Therefore, indoor heat exchanger 12 is easy
Freeze, furthermore it is possible to which that cuts down indoor heat exchanger 12 freezes required power consumption.
In step S103e, whether within a predetermined range control unit K determines the temperature of indoor heat exchanger 12.Above-mentioned
" preset range " refers to the range that can freeze the moisture that the air in indoor unit 10 is included by indoor heat exchanger 12, pre-
First set.Pass through the temperature of indoor heat exchanger temperature sensor 24c (referring to Fig. 4) detection indoor heat exchanger 12.
The temperature of indoor heat exchanger 12 is ("No" of S103e) in the case that preset range is outer in step S103e,
Control unit K processing returns to step S103d.For example, in the case that the temperature of indoor heat exchanger 12 is higher than preset range, control
Portion K processed makes the aperture of outdoor expansion valve 34 further become smaller (S103d).In this way, control unit K freezes indoor heat exchanger 12
When, the aperture of outdoor expansion valve 34 is adjusted, so that the temperature convergence of indoor heat exchanger 12 is in preset range.
In addition, indoor fan 14 can be set as halted state (reference by control unit K when freezing indoor heat exchanger 12
T2~t3 at the time of Fig. 6), in addition it is also possible to drive indoor fan 14 with desired speed.This is because room under any circumstance
Inside heat exchanger 12 freezes develop.
In addition, up-down wind direction board 19 (referring to Fig. 2) can be opening state, close indoors in the freezing of heat exchanger 12
The free position of closed state, but closed state is less to user's bring sense of discomfort.
In the step S103e of Fig. 7 the temperature of indoor heat exchanger 12 within a predetermined range in the case where (S103e's
"Yes"), the processing of control unit K is advanced to step S103f.
In step S103f, control unit K determines whether have passed through the freeze-off time set in step S103b.From " opening
Begin " when from without scheduled freeze-off time in the case where ("No" of S103f), control unit K processing returns to arrive step
S103c.On the other hand, since " " have passed through scheduled freeze-off time in the case where ("Yes" of S103f), control unit K
Terminate a series of processing (end) for freezing indoor heat exchanger 12.
In addition, the processing (freezing for indoor heat exchanger 12) for step S107 shown in fig. 5, with above-mentioned step
S103 (a series of processing shown in Fig. 7) is identical, therefore omits detailed description.
< effect >
According to first embodiment, kitchen is present in be conditioned space in the case where ("Yes" of the S102 of Fig. 5), control unit
After K freezes indoor heat exchanger 12 (S103), firstly, the top of indoor heat exchanger 12 is thawed (S104).Include as a result,
It is attached under the water flows of dirts such as the dust, dust, oil on the top of indoor heat exchanger 12, in the indoor heat exchange of frozen state
It freezes and forms ice sheet in the lower part of device 12.Later, when the lower part of indoor heat exchanger 12 is defrosted (S105), above-mentioned ice sheet melts
After change, the frost (being present in the frost on the inside of ice sheet) for being attached to the lower part of indoor heat exchanger 12 melts.In this way, rinsing by stages
Top, the lower part of indoor heat exchanger 12, thus the lower part of heat exchanger 12 is difficult to residual soil indoors.In particular, with cooking
The oil of generation of preparing food is difficult to remain in the lower part of indoor heat exchanger 12, therefore can suitably clean indoor heat exchanger 12.
In addition, kitchen does not exist in ("No" of the S102 of Fig. 5) in the case where being conditioned space, Indoor Thermal friendship is successively carried out
The all of parallel operation 12 freezes and thaws (S107, S108).Therefore, without reheat dehumidification (S104), and can be correspondingly
A series of cleaning treatment is carried out in a short time.
" second embodiment "
Second embodiment and first embodiment the difference lies in that without setting in machine 10A indoors (referring to Fig. 8)
Indoor expansion valve.In addition, in second embodiment and first embodiment the difference lies in that by by 31 (reference of compressor
The small top come the indoor heat exchanger 12A that thaws (referring to Fig. 8) when being arranged than common operation of air conditioner of revolving speed Fig. 8).Separately
Outside, other (Fig. 1, Fig. 2, structure shown in Fig. 4, flow charts shown in Fig. 7 etc.) are identical with first embodiment.Therefore, to
The different part of first embodiment is illustrated, and omits the explanation to repeating part.
Fig. 8 is the explanatory diagram for indicating the coolant loop QA of air conditioner 100A of second embodiment.
Coolant loop QA shown in Fig. 8 is successively via compressor 31, " condenser ", (the 1st expansion of outdoor expansion valve 34
Valve) and " evaporator ", the circuit that refrigerant recycles in refrigerating cycle.In addition, in above-mentioned " condenser " and " evaporator "
A side be outdoor heat exchanger 32, another party be indoor heat exchanger 12A at least part.
In addition, (referring to the dotted arrow of Fig. 8) in the case where functioning indoor heat exchanger 12A as evaporator,
The top of indoor heat exchanger 12A is located at the downstream side of the lower part of indoor heat exchanger 12A.
Fig. 9 is the flow chart (suitably referring to Fig. 8) for the cleaning treatment that the control unit K of air conditioner 100 is executed.In addition, for
Identical processing, assigns identical number of steps with first embodiment (referring to Fig. 5).
In step s 103, after freezing indoor heat exchanger 12A, the processing of control unit K advances to step S104a.
In step S104a, control unit K is by the revolving speed of compressor 31 (that is, air compressor motor shown in Fig. 4
The revolving speed of 31a) it is small when being set to than common operation of air conditioner, come the top for the indoor heat exchanger 12A that thaws.Step is described in detail
When the processing of S104a, control unit K controls four-way valve 35 so that same direction is flowed when refrigerant is to refrigeration operation, to drive
Compressor 31.In this way, successively being handed over via compressor 31, outdoor heat indoors in the defrosting on the top heat exchanger 12A (S104a)
The lower part of parallel operation 32, outdoor expansion valve 34, the top of indoor heat exchanger 12A and indoor heat exchanger 12A, refrigerant is in refrigerant
It is recycled in the QA of circuit.
As described above, it is small when the common operation of air conditioner of the rotating ratio of compressor 31, therefore stream in heat exchanger 12A indoors
It is small when (for example, when refrigeration operation) flow-rate ratio of logical refrigerant common operation of air conditioner.Heat exchanger 12A indoors as a result,
Refrigerant evaporation is most in the way of flow path, therefore its upstream side is further freezed, and downstream side is defrosted.In other words, indoor heat exchanger
The lower part of 12A is further freezed, and the top of indoor heat exchanger 12A is defrosted.
When being attached to the frost thawing on the top of indoor heat exchanger 12A, under the water flow comprising dirts such as dust, dust, oil,
The top of indoor heat exchanger 12A is rinsed.Also, from the water under the overhead stream of indoor heat exchanger 12A in frozen state
Freeze again the lower part of indoor heat exchanger 12A.That is, the lower part of heat exchanger 12A indoors, in attached frost
Outside forms the ice sheet comprising dirts such as dust, dust, oil.When the lower part of indoor heat exchanger 12A is defrosted after as a result,
(S105), the ice sheet comprising dirt on the top of indoor heat exchanger 12A melts, and does not pollute the lower part of indoor heat exchanger 12A
Ground flows down.
In addition, the processing of step S105~S108 is identical as first embodiment (referring to Fig. 5), and the description is omitted.
< effect >
According to second embodiment, the top and lower part of indoor heat exchanger 12A are periodically rinsed, thus dirt is difficult
To remain in the lower part of indoor heat exchanger 12A.In addition, indoors in the defrosting on the top of heat exchanger 12A (Fig. 9's
S104a), small value when the tachometer value of compressor 31 being set as than common operation of air conditioner.Therefore, with first embodiment phase
Than the power consumption of air conditioner 100A can be cut down.
In addition, the top of (S103 of Fig. 9) and indoor heat exchanger 12A in the freezing of heat exchanger 12A indoors
In defrosting in the either case of (S104a), the flowing of the refrigerant in coolant loop QA with refrigeration operation when it is identical.Therefore, it opens
The temperature of refrigerant will not sharply become after the defrosting on the top of beginning indoor heat exchanger 12A, such as indoors in heat exchanger 12A
Change or refrigerant flowing direction will not change dramatically, therefore be able to suppress with these phenomenons sound generation.
" variation "
More than, air conditioner 100 of the invention, 100A are illustrated by each embodiment, but the present invention and unlimited
Due to above-mentioned record, can make various changes.
For example, in the first embodiment, illustrating the 1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b
Freeze end after, immediately begin to the processing (referring to Fig. 6 at the time of t3) of the defrosting of the 1st indoor heat exchanger 12a, but not
It is defined in this.For example, control unit K can also freeze to tie in the 1st indoor heat exchanger 12a and the 2nd indoor heat exchanger 12b
Shu Shiqi after elapse of a predetermined time, starts the defrosting of the 1st indoor heat exchanger 12a.
In addition, above-mentioned " predetermined time " is set as degree that the 2nd indoor heat exchanger 12b will not thaw in advance
Time.During " predetermined time ", each equipment comprising compressor 31 stops.Thus, it is possible in the 2nd indoor heat exchanger
In the state that 12b freezes, thaw to the 1st indoor heat exchanger 12a.In addition, by the way that above-mentioned " predetermined time ", energy is arranged
It is enough to inhibit (to freeze Shi Weiyu refrigeration operation similarly to flow to, the 1st indoor heat exchanger as the flowing of refrigerant becomes opposite direction
12a defrosting Shi Weiyu heating operation similarly flows to) and the sound of generation.
In addition, in various embodiments, illustrating that control unit K continues the halted state of each equipment comprising compressor 31
The processing (S105 of Fig. 5) that predetermined time thaws to the lower part of indoor heat exchanger 12, but not limited to this.Example
Such as, in the same manner as when heating operation, control unit K can also be such that indoor heat exchanger 12 functions as condenser, to room
The lower part of inside heat exchanger 12 thaws.Come in addition, control unit K can also execute air-supply operating to indoor heat exchanger 12
Lower part thaws.
In addition, in various embodiments, illustrating that control unit K successively carries out heating operation and the air-supply operating (t5 of Fig. 6
~t7) come the processing that keeps indoor heat exchanger 12 dry, but not limited to this.That is, control unit K can also only carry out pre- timing
Between heating operation and keep indoor heat exchanger 12 dry.In addition, control unit K can also only carry out the air-supply operating of predetermined time
And keep indoor heat exchanger 12 dry.
In addition, in various embodiments, illustrating control unit K according to the shooting result of shoot part 23 (referring to Fig. 4) to sentence
Determining kitchen whether there is in the processing (S102 of Fig. 5) for being conditioned space, and but not limited to this.For example, it is also possible to pass through heat
The indoor temperature transmitters such as pile, Thermoelectric Infrared Sensor 24a (people's test section: obtains indoor thermal image referring to Fig. 4).
In this case, control unit K is according to the variation of the position of above-mentioned thermal image detection people, and determines that kitchen whether there is in being adjusted
Save space.
In addition, in various embodiments, illustrate to be determined as kitchen be present in be conditioned space in the case where (Fig. 5's
The "Yes" of S102), the control unit K processing that periodically top to indoor heat exchanger 12 and lower part thaw (S104,
S105), but not limited to this.For example, it is also possible to which no matter kitchen whether there is in being conditioned space, all periodically to interior
The top and lower part of heat exchanger 12 thaw.Thereby, it is possible to suitably rinse be attached to indoor heat exchanger 12 dust,
The dirts such as dust, oil.
In addition, in various embodiments, when illustrating to freeze indoor heat exchanger 12, control unit K sets compressor 31
Revolving speed, the processing (S103c, S103d of Fig. 7) of the aperture of appropriate adjustment outdoor expansion valve 34, but not limited to this.Example
Such as, when freezing indoor heat exchanger 12, control unit K can also make outdoor expansion valve 34 maintain predetermined aperture, and adjust pressure
The revolving speed of contracting machine 31 so that the temperature of indoor heat exchanger 12 close to scheduled target temperature.
In addition, illustrate successively to carry out in the first embodiment indoor heat exchanger 12 it is all freeze, the 1st Indoor Thermal
The defrosting of exchanger 12a (top of indoor heat exchanger 12) and the 2nd indoor heat exchanger 12b be (indoor heat exchanger 12
Lower part) defrosting processing (referring to Fig. 5), but not limited to this.For example, it is also possible to carry out reheat dehumidification to make in Room the 2nd
Heat exchanger 12b freezes.When being described in more detail, in refrigerant successively via compressor 31, " condenser ", the 2nd in refrigerating cycle
In the expansion valve V and coolant loop Q (referring to Fig. 3) of " evaporator " circulation, control unit K can also be proceed as follows reheating and remove
It is wet.That is, control unit K functions the 1st indoor heat exchanger 12a of the upstream side of the 2nd expansion valve V as condenser, make the 2nd
The 2nd indoor heat exchanger 12b in the downstream side of expansion valve V is functioned as evaporator, freezes the 2nd indoor heat exchanger 12b
Knot.
In addition, can both make 12 bulk freezing of indoor heat exchanger (identical as the S103 of Fig. 5) before this, in addition, even if not
Freeze the cleaning effect that can also play indoor heat exchanger 12.Due to the condensed water heat exchange indoors with refrigeration operation etc.
It is flowed down on device 12b, so the lower part (the 2nd indoor heat exchanger 12b) of the indoor heat exchanger 12 is easy to be contaminated.Institute as above
It states, after freezing the 2nd indoor heat exchanger 12b, the water generated with defrosting and the dirt for being attached to the 2nd heat exchanger 12b
It flows down together, therefore can effectively clean indoor heat exchanger 12.
In addition it is also possible to combine first embodiment and second embodiment.For example, in the interior of first embodiment
In the structure of machine 10 (referring to Fig. 3), it is real second to carry out that indoor expansion valve V (referring to Fig. 3) can also be set as to substantially standard-sized sheet
Apply a series of cleaning treatment illustrated in mode (referring to Fig. 9).In addition, control unit K can also with it is above-mentioned a series of clear
It washes processing differently, reheat dehumidification is suitably executed to the operation of remote controler 40 (referring to Fig.1) according to user.
In addition, illustrating the structure that an indoor unit 10 and outdoor unit 30 is respectively set in various embodiments, but simultaneously
It is not limited to this.I.e., it is possible to which the multiple indoor units being connected in parallel are arranged, more outdoor units being connected in parallel also can be set.
In addition, embodiment is of the invention for ease of description and has carried out detailed record, it is not necessarily required to have explanation
All structures.Furthermore, it is possible to carry out addition, deletion, the displacement of other structures to a part of the structure of embodiment.
In addition, above-mentioned mechanism, representation are thought illustrating upper necessary component, it is not necessarily required to represent product
On all mechanisms, structure.
Symbol description
100,100A air conditioners；
10,10A indoor units；
12,12A indoor heat exchangers (evaporator/condenser)；
The 1st indoor heat exchanger of 12a (top of indoor heat exchanger)；
The 2nd indoor heat exchanger of 12b (lower part of indoor heat exchanger)；
14 indoor fans；
18 left and right wind direction plates；
19 up-down wind direction boards；
23 shoot parts (people's test section)；
30 outdoor units；
31 compressors；
31a air compressor motor (motor of compressor)；
32 outdoor heat exchangers (condenser/evaporator)；
33 outdoor fans；
34 outdoor expansion valves (the 1st expansion valve)；
35 four-way valves；
40 remote controlers；
K control unit；
Q, QA coolant loop；
V indoor expansion valve (the 2nd expansion valve).
Claims (according to the 19th article of modification of treaty)
A kind of (1. after modification) air conditioner, which is characterized in that
The air conditioner has:
The coolant loop that refrigerant is successively recycled via compressor, condenser, the 1st expansion valve and evaporator in refrigerating cycle；
And
Control unit at least controls the compressor and the 1st expansion valve,
A side in the condenser and the evaporator is outdoor heat exchanger, another party be indoor heat exchanger at least
A part,
The control unit executes following processing: successively carrying out the freezing of the indoor heat exchanger, the indoor heat exchanger
The defrosting of the lower part of the defrosting on top and the indoor heat exchanger,
The control unit makes refrigerant successively via the compressor, described in the defrosting on the top of the indoor heat exchanger
Outdoor heat exchanger, the 1st expansion valve, the lower part of the indoor heat exchanger and the top of the indoor heat exchanger,
It is recycled in the coolant loop.
(2. after modification) air conditioner according to claim 1, which is characterized in that
In the case where functioning the indoor heat exchanger as evaporator, the top of the indoor heat exchanger is located at
The downstream side of the lower part of the indoor heat exchanger.
(3. after modification) air conditioner according to claim 1, which is characterized in that
In the defrosting on the top of the indoor heat exchanger, refrigerant evaporates to the greatest extent on the way in the flow path of the indoor heat exchanger.
(4. after modification) air conditioner according to claim 1, which is characterized in that
In the defrosting of the lower part of the indoor heat exchanger, the control unit makes the stopping shape of the equipment comprising the compressor
State predetermined hold-time.
(5. deletion)
(6. deletion)
(7. deletion)
Illustrate or states (according to the 19th article of modification of treaty)
(1)
Claim 1 when by scheduled item to application is defined, as new claim 1.Modification basis
For paragraphs [0072], [0074], Fig. 8, Fig. 9.
(2)
The record of claim 2 when modification application, as new claim 2.Modification basis is paragraphs
[0072], Fig. 8.
(3)
The record of claim 3 when modification application, as new claim 3.Modification basis is paragraphs
[0075], Fig. 8.
(4)
The record of claim 4 when modification application, as new claim 4.Modification basis is paragraphs
[0081], Fig. 5, Fig. 6.
(5)
Delete the claim 5~7 when application.
(6)
Think that the invention of modified Claims 1 to 4 is respectively provided with novelty, creativeness and industrially available
Property.
Claims (7)
1. a kind of air conditioner, which is characterized in that
The air conditioner has:
The coolant loop that refrigerant is successively recycled via compressor, condenser, the 1st expansion valve and evaporator in refrigerating cycle；
And
Control unit at least controls the compressor and the 1st expansion valve,
A side in the condenser and the evaporator is outdoor heat exchanger, another party be indoor heat exchanger at least
A part,
The control unit executes following processing: successively carrying out the freezing of the indoor heat exchanger, the indoor heat exchanger
The defrosting of the lower part of the defrosting on top and the indoor heat exchanger.
2. air conditioner according to claim 1, which is characterized in that
The air conditioner has detection and is located at the people's test section for being conditioned the people in space,
The people detected by people's test section height of head within a predetermined range, and when from indoor unit the people to
When left and right directions or round-trip longitudinal direction, the control unit executes the processing.
3. air conditioner according to claim 1 or 2, which is characterized in that
1st indoor heat exchanger on the top as the indoor heat exchanger and lower part as the indoor heat exchanger
2nd indoor heat exchanger is connected via the 2nd expansion valve,
As the processing, the control unit successively carries out the 1st indoor heat exchanger and the 2nd indoor heat exchanger
Freeze, the defrosting of the 1st indoor heat exchanger and the defrosting of the 2nd indoor heat exchanger.
4. air conditioner according to claim 3, which is characterized in that
The control unit the 1st indoor heat exchanger and the 2nd indoor heat exchanger freeze just to terminate after,
Start the defrosting of the 1st indoor heat exchanger.
5. air conditioner according to claim 3, which is characterized in that
The control unit from the 1st indoor heat exchanger and the 2nd indoor heat exchanger are at the end of freezing through
It has crossed after the predetermined time, has started the defrosting of the 1st indoor heat exchanger.
6. air conditioner according to claim 1, which is characterized in that
The control unit sets the revolving speed of the motor of the compressor in the defrosting on the top of the indoor heat exchanger
It is small when obtaining than common operation of air conditioner, make refrigerant successively via the compressor, the outdoor heat exchanger, the 1st expansion
The lower part of valve, the top of the indoor heat exchanger and the indoor heat exchanger, recycles in the coolant loop.
7. a kind of air conditioner, which is characterized in that
The air conditioner has:
The refrigerant that refrigerant is successively recycled via compressor, condenser, the 2nd expansion valve and evaporator in refrigerating cycle returns
Road；And
Control unit at least controls the compressor and the 2nd expansion valve,
The 2nd of 1st indoor heat exchanger on the top as indoor heat exchanger and the lower part as the indoor heat exchanger
Indoor heat exchanger is connected via the 2nd expansion valve,
The control unit plays the 1st indoor heat exchanger of the upstream side of the 2nd expansion valve as the condenser
Function functions the 2nd indoor heat exchanger in the downstream side of the 2nd expansion valve as the evaporator, to make
2nd indoor heat exchanger freezes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017104103A JP6349013B1 (en) | 2017-05-26 | 2017-05-26 | Air conditioner |
| JP2017-104103 | 2017-05-26 | ||
| PCT/JP2017/045205 WO2018216252A1 (en) | 2017-05-26 | 2017-12-15 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109416189A true CN109416189A (en) | 2019-03-01 |
| CN109416189B CN109416189B (en) | 2019-12-03 |
Family
ID=62706236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780010892.5A Active CN109416189B (en) | 2017-05-26 | 2017-12-15 | Air conditioner |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3633273B1 (en) |
| JP (1) | JP6349013B1 (en) |
| CN (1) | CN109416189B (en) |
| MY (1) | MY183428A (en) |
| TW (1) | TWI638968B (en) |
| WO (1) | WO2018216252A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109416189B (en) | 2019-12-03 |
| EP3633273A1 (en) | 2020-04-08 |
| TW201901091A (en) | 2019-01-01 |
| TWI638968B (en) | 2018-10-21 |
| JP2018200129A (en) | 2018-12-20 |
| JP6349013B1 (en) | 2018-06-27 |
| EP3633273A4 (en) | 2021-03-03 |
| MY183428A (en) | 2021-02-18 |
| EP3633273B1 (en) | 2022-04-27 |
| WO2018216252A1 (en) | 2018-11-29 |
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