CN104246387B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN104246387B CN104246387B CN201380020149.XA CN201380020149A CN104246387B CN 104246387 B CN104246387 B CN 104246387B CN 201380020149 A CN201380020149 A CN 201380020149A CN 104246387 B CN104246387 B CN 104246387B
- Authority
- CN
- China
- Prior art keywords
- secondary unit
- heat exchanger
- air conditioner
- indoor
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- 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
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
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)
- Air Conditioning Control Device (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Except the sensor that tracer liquid cold-producing medium evaporates, also need to be configured for the sensor of condensation temperature when detecting cooling and warming running or evaporating temperature.According to air conditioner of the present invention, indoor heat converter has: secondary unit (20); With main heat exchanger (21), it is configured in the downwind side of secondary unit (20).During running under the dehumidifying operation mode carrying out specifying, the liquid refrigerant being provided to secondary unit (20) all evaporates in the midway of secondary unit (20).Therefore, only a part for the upstream side of secondary unit (20) is evaporation territory, and the scope in the downstream in the evaporation territory of secondary unit (20) was thermal domain.Further, the mistake thermal domain of secondary unit (20) downwind side and be configured with near the pars intermedia of indoor heat converter Indoor Thermal hand over temperature sensor (32).
Description
Technical field
The present invention relates to and carry out the air conditioner operated that dehumidifies.
Background technology
In air conditioner in the past, there is a kind of air conditioner, at the rear side configuration secondary unit of its main heat exchanger, dehumidify locally by means of only secondary unit makes cold-producing medium evaporate, even if thus the cooling capacity hour that the difference of (when the rotating speed of compressor is low), such as room temperature and design temperature is enough little, required when low load also can dehumidify.According to this air conditioner, evaporation territory is defined in secondary unit, temperature sensor is configured in the downstream in this evaporation territory, be controlled to and become the fixing degree of superheat.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 9-14727 publication
Summary of the invention
The problem that invention will solve
According to this air conditioner, when arranging for detecting the temperature sensor evaporated near the outlet of secondary unit, become the hydraulic fluid side near indoor heat converter.Thus, when the high capacity when freezing operates, because cold-producing medium is with the pressure loss, therefore, the evaporating temperature of higher temperature as heat exchanger can be measured by flase drop.In addition, when heating running, due to supercooling, therefore can measure the temperature lower than the condensation temperature of reality by flase drop, liquid is got back to compressor and damages the reliability of compressor.
In order to avoid such situation, there is the problem that cost cost is such in condensation temperature when needing in addition for detecting refrigeration and heating running or the sensor of evaporating temperature.
Therefore, the object of the invention is to, a kind of air conditioner is provided, can the sensor that evaporates of dual-purpose tracer liquid cold-producing medium and detect the sensor heated with condensation temperature during cooling operation or evaporating temperature.
For solving the means of problem
The feature of the air conditioner of a first aspect of the present invention is, described air conditioner possesses refrigerant loop compressor, outdoor heat converter, expansion valve and indoor heat converter coupled together, described indoor heat converter has: secondary unit, when dehumidifying running, described secondary unit is configured in most weather side and is provided liquid refrigerant; And main heat exchanger, it is configured in the downwind side of described secondary unit, when dehumidifying running, described secondary unit has the mistake thermal domain in the evaporation territory of cold-producing medium evaporation for liquid and the downstream in described evaporation territory, be configured with temperature detecting unit in the downstream of described secondary unit, described temperature detecting unit is for detecting the situation that liquid refrigerant evaporates is complete in described secondary unit.
According to this air conditioner, when when dehumidify running time in the exit of secondary unit fully with overheated, cross the air that thermal domain flows through be cooled hardly at this, thus the heat-transfer pipe of downwind side is not cooled, therefore, by detecting the temperature of the refrigerant loop of the downwind side of secondary unit, thus can detect in the exit of secondary unit with overheated.In addition, can not to occur in when heating running with supercooling or error detection temperature, running become unstable situation due to crushing during cooling operation.
Air conditioner according to a second aspect of the invention, is characterized in that, in the air conditioner of first aspect, described temperature detecting unit is configured near the central authorities of the refrigerant path of described indoor heat converter.
According to this air conditioner, condensation temperature when utilizing temperature detecting unit and refrigeration can be detected and heat running or evaporating temperature, wherein, described temperature detecting unit detects the situation that liquid refrigerant evaporates is complete in secondary unit when dehumidifying running.
Air conditioner according to a third aspect of the invention we, is characterized in that, first or second aspect air conditioner in, the liquid inlet of described secondary unit is in below, and described temperature detecting unit is configured near the upper end of described secondary unit.
According to this air conditioner, the scope in the evaporation territory of secondary unit can be expanded.
Air conditioner according to a forth aspect of the invention, is characterized in that, in the air conditioner of the either side in the first to the third aspect, described main heat exchanger has: preceding heat exchanger, and it is configured in the front face side in indoor set; And back-surface heat exchanger, it is configured in the rear side in indoor set, and described secondary unit is configured in the front of described preceding heat exchanger.
According to this air conditioner, due to the area of secondary unit can be expanded, therefore, it is possible to expand the scope in the evaporation territory of secondary unit.
Invention effect
As described in the above description, according to the present invention, following effect can be obtained.
According to the invention of first aspect, when when dehumidify running time in the exit of secondary unit fully with overheated, cross the air that thermal domain flows through be cooled hardly at this, thus the heat-transfer pipe of downwind side is not cooled, therefore, by detecting the temperature of the refrigerant loop of the downwind side of secondary unit, thus can detect in the exit of secondary unit with overheated.In addition, can not to occur in when heating running with supercooling or error detection temperature, running become unstable situation due to crushing during cooling operation.
According to the invention of second aspect, condensation temperature when utilizing temperature detecting unit and refrigeration can be detected and heat running or evaporating temperature, wherein, described temperature detecting unit detects the situation that liquid refrigerant evaporates is complete in secondary unit when dehumidifying running.
According to the invention of the third aspect, the scope in the evaporation territory of secondary unit can be expanded.
According to the invention of fourth aspect, due to the area of secondary unit can be expanded, therefore, it is possible to expand the scope in the evaporation territory of secondary unit.
Accompanying drawing explanation
Fig. 1 is the loop diagram of the refrigerant loop of the air conditioner that embodiments of the present invention are shown.
Fig. 2 is the general profile chart of the indoor set of the air conditioner that embodiments of the present invention are shown.
Fig. 3 is the figure of the structure that indoor heat converter is described.
Fig. 4 is the figure of the control part of the air conditioner that embodiments of the present invention are described.
Fig. 5 shows an example of changes in flow rate when to change aperture in expansion valve.
Detailed description of the invention
Below, the embodiment of air conditioner 1 of the present invention is described.
The overall structure > of < air conditioner 1
As shown in Figure 1, the air conditioner 1 of present embodiment possesses: indoor set 2 disposed in the interior; With off-premises station 3 disposed in the outdoor.Further, air conditioner 1 possesses refrigerant loop compressor 10, cross valve 11, outdoor heat converter 12, expansion valve 13 and indoor heat converter 14 coupled together.In refrigerant loop, through cross valve 11, outdoor heat converter 12 is connected with the outlet of compressor 10, expansion valve 13 is connected with this outdoor heat converter 12.Further, one end of indoor heat converter 14 is connected with expansion valve 13, through cross valve 11, the suction inlet of compressor 10 is connected with the other end of this indoor heat converter 14.Indoor heat converter 14 has secondary unit 20 and main heat exchanger 21.
Air conditioner 1 can carry out cooling operation pattern, the dehumidifying operation mode of regulation and the running of heating mode of operation, and can utilize remote controller carry out to select arbitrary running running start operation carry out running handover operation or operate shut-down operation.In addition, utilize remote controller and the design temperature of indoor temperature can be set or changed the air quantity of indoor set 2 by the rotating speed changing indoor fan.
Under the dehumidifying operation mode of cooling operation pattern and regulation, as shown in illustrated solid arrow, form following kind of refrigeration cycle or dehumidifying circulation: the cold-producing medium of discharging from compressor 10 sequentially flows to outdoor heat converter 12, expansion valve 13, secondary unit 20 and main heat exchanger 21 from cross valve 11, and the cold-producing medium through main heat exchanger 21 gets back to compressor 10 by cross valve 11.That is, outdoor heat converter 12 plays a role as condenser, and indoor heat converter 14 (secondary unit 20 and main heat exchanger 21) plays a role as evaporimeter.
On the other hand, under heating mode of operation, by switching cross valve 11, thus formed as shown in diagram dotted arrow and following heat circulation: the cold-producing medium of discharging from compressor 10 sequentially flows to main heat exchanger 21, secondary unit 20, expansion valve 13 and outdoor heat converter 12 from cross valve 11, and the cold-producing medium through outdoor heat converter 12 gets back to compressor 10 by cross valve 11.That is, indoor heat converter 14 (secondary unit 20 and main heat exchanger 21) plays a role as condenser, and outdoor heat converter 12 plays a role as evaporimeter.
Indoor set 2 has the suction inlet 2a of room air at upper surface, has the blow-off outlet 2b of idle call air in front lower.In indoor set 2, be formed with air flow circuit from suction inlet 2a towards blow-off outlet 2b, be configured with the indoor fan 16 of indoor heat converter 14 and cross-flow type at this air flow circuit.Therefore, when indoor fan 16 rotates, room air is inhaled in indoor unit 1 from suction inlet 2a.In the front side of indoor set 2, the suction air from suction inlet 2a flows to indoor fan 16 side by secondary unit 20 and main heat exchanger 21.On the other hand, in the rear side of indoor set 2, the suction air from suction inlet 2a flows to indoor fan 16 side by main heat exchanger 21.
As mentioned above, indoor heat converter 14 has: secondary unit 20; With main heat exchanger 21, when operating under the dehumidifying operation mode in cooling operation pattern and regulation, described main heat exchanger 21 is configured in the downstream of secondary unit 20.Main heat exchanger 21 has: preceding heat exchanger 21a, and it is configured in the front face side of indoor set 2; With back-surface heat exchanger 21b, it is configured in the rear side of indoor set 2, and this heat exchanger 21a, 21b are to be configured to around the mode of indoor fan 16 shape of falling V.Further, secondary unit 20 is configured in the front of preceding heat exchanger 21a.Secondary unit 20 and main heat exchanger 21 (preceding heat exchanger 21a, back-surface heat exchanger 21b) possess heat-exchange tube and multi-disc fin respectively.
As shown in Figure 3, under the dehumidifying operation mode of cooling operation pattern and regulation, from be configured in secondary unit 20 below end near liquid inlet 17a liquid refrigerant is provided, this liquid refrigerant provided flows in the mode of the upper end close to secondary unit 20.Further, flow out from the outlet 17b near the upper end being configured in secondary unit 20 and flow to branch 18a.Be provided to the inferior portion of preceding heat exchanger 21a, upper section and back-surface heat exchanger 21b from three of main heat exchanger 21 entrance 17c respectively at the cold-producing medium of branch 18a branch, then, flow out from outlet 17d and converge at merging part 18b.In addition, under heating mode of operation, cold-producing medium flows along direction contrary to the above.
Further, according to air conditioner 1, during running under the dehumidifying operation mode carrying out specifying, the liquid refrigerant provided from the liquid inlet 17a of secondary unit 20 all evaporates the way of secondary unit 20.Therefore, the scope of the part near the liquid inlet 17a of only secondary unit 20 is the evaporation territory of liquid refrigerant evaporates.Therefore, when operating under the dehumidifying operation mode specified, in indoor heat converter 14, only a part for the upstream side of secondary unit 20 is evaporation territory, and scope and the main heat exchanger 21 in the downstream in the evaporation territory of secondary unit 20 were thermal domain.
Further, the cold-producing medium that the mistake thermal domain near the upper end of secondary unit 20 flows through flows through the inferior portion of the preceding heat exchanger 21a configured at the downwind side of the inferior portion of secondary unit 20.Therefore, from the suction air of suction inlet 2a, the air cooled in the evaporation territory of secondary unit 20 is blown from blow-off outlet 2b after preceding heat exchanger 21a is heated.On the other hand, from in the suction air of suction inlet 2a, be blown from blow-off outlet 2b with the temperature roughly the same with indoor temperature with the air that heat exchanger 21b flows through overleaf with the air that preceding heat exchanger 21a flows through in the mistake thermal domain of secondary unit 20.
According to air conditioner 1, as shown in Figure 1, be provided with evaporating temperature sensor 30 at off-premises station 3, described evaporating temperature sensor 30 detects evaporating temperature in the downstream of expansion valve 13 in refrigerant loop.Further, be provided with at indoor set 2: indoor temperature transmitter 31, it detects indoor temperature (temperature from the suction air of the suction inlet 2a of indoor set 2); With Indoor Thermal exchange temperature sensor 32, its situation complete to liquid refrigerant evaporates in secondary unit 20 detects.
As shown in Figure 3, Indoor Thermal exchange temperature sensor 32 is configured in the downwind side near the upper end of secondary unit 20.Further, the mistake thermal domain near the upper end of secondary unit 20, the suction air from suction inlet 2a is cooled hardly.Therefore, when the temperature detected by Indoor Thermal exchange temperature sensor 32 is roughly the same with the indoor temperature detected by indoor temperature transmitter 31, following situation can be detected: evaporate in the midway of secondary unit 20, the scope near the upper end of secondary unit 20 was thermal domain.In addition, Indoor Thermal exchange temperature sensor 32 is configured in the heat-transfer pipe of the pars intermedia of indoor heat converter 14.Therefore, near the pars intermedia of indoor heat converter 14, the condensation temperature under refrigeration can being detected and heating running or evaporating temperature.
As shown in Figure 4, the motor 16a of compressor 10, cross valve 11, expansion valve 13, drive chamber's internal fan 16, evaporating temperature sensor 30, indoor temperature transmitter 31 are connected with the control part of air conditioner 1 with Indoor Thermal exchange temperature sensor 32.Therefore, control part is according to the running controlling air conditioner 1 from the instruction (running starts to operate or the design temperature etc. of indoor temperature) of remote controller or the evaporating temperature detected by evaporating temperature sensor 30, the indoor temperature (sucking the temperature of air) detected by indoor temperature transmitter 31, the heat exchange medium temperature that detected by Indoor Thermal exchange temperature sensor 32.
And, according to air conditioner 1, under the dehumidifying operation mode of regulation, secondary unit 20 has the mistake thermal domain in the evaporation territory of liquid refrigerant evaporates and the downstream in evaporation territory, but control compressor 10 and expansion valve 13, the scope in this evaporation territory is changed according to load.Here, change according to load and refer to according to the heat being provided to evaporation territory and change, and determine heat according to such as indoor temperature (sucking the temperature of air) and indoor air quantity.In addition, load is corresponding with required dehumidifying effect (required refrigerating capacity), can detect load according to such as indoor temperature and differing from of design temperature.
Difference according to indoor temperature and design temperature controls compressor 10.Be controlled to like this: because when the difference of indoor temperature and design temperature is large, load is large, therefore the frequency of compressor 10 increases, and because when the difference of indoor temperature and design temperature is little, load is little, therefore the frequency of compressor 10 reduces.
Expansion valve 13 is controlled according to the evaporating temperature detected by evaporating temperature sensor 30.As mentioned above, under the controlled state of the frequency of compressor 10, the mode of the temperature in the prescribed limit (10 DEG C ~ 14 DEG C) becoming near target evaporating temperature (12 DEG C) to make evaporating temperature controls expansion valve 13.Preferably, the prescribed limit of this evaporating temperature does not depend on the frequency of compressor 10 and is controlled so as to fix.But, even if change a little due to frequency, as long as be in fact fixing, then no problem.
Like this, under the dehumidifying operation mode of regulation, by controlling compressor 10 and expansion valve 13 according to load, thus change the scope in evaporation territory of secondary unit 20, evaporating temperature can be made to become temperature in prescribed limit.
According to air conditioner 1, secondary unit 20 and preceding heat exchanger 21a have the heat-transfer pipe of 12 sections respectively.And, when under the dehumidifying operation mode specified, the hop count becoming evaporation territory of secondary unit 20 is the hop count of preceding heat exchanger 21a over half, due to the scope in the evaporation territory of secondary unit can be expanded fully, therefore, it is possible to tackle the variation of load fully.Particularly effective when load is large.
Fig. 5 shows changes in flow rate when to change aperture in expansion valve 13.The aperture of expansion valve 13 changes continuously according to the number of drive pulses of input.Further, along with aperture reduces, in the flow minimizing of the cold-producing medium that expansion valve 13 flows through.According to expansion valve 13, be buttoned-up status when aperture is t0, when aperture is between t0 to t1, along with aperture increases, flow increases according to the first gradient, and when aperture is between t1 to t2, along with aperture increases, flow increases according to the second gradient.Here, the first gradient is greater than the second gradient.
About the control in order to make the range in the evaporation territory of secondary unit 20 carry out, an example is described.Such as, under the dehumidifying operation mode of regulation, when the scope in the evaporation territory at secondary unit 20 is regulation area, load becomes large, the frequency of compressor 10 increases, and the aperture of expansion valve 13 becomes large.Therefore, the scope in the evaporation territory of secondary unit 20 becomes and is greater than regulation area, even if the air quantity be drawn in indoor set 2 is fixing, the actual air quantity by evaporation territory also increases.
On the other hand, under the dehumidifying operation mode of regulation, when the scope in the evaporation territory at secondary unit 20 is regulation area, load diminishes, the frequency of compressor 10 reduces, and the aperture of expansion valve 13 diminishes.Therefore, the scope in the evaporation territory of secondary unit 20 becomes and is less than regulation area, even if the air quantity be drawn in indoor set 2 is fixing, the actual air quantity by evaporation territory also reduces.
The feature > of the air conditioner of < present embodiment
Air conditioner 1 according to the present embodiment, when when dehumidify running time in the exit of secondary unit 20 fully with overheated, cross the air that thermal domain flows through be cooled hardly at this, thus the heat-transfer pipe of downwind side is not cooled, therefore, by detecting the temperature of the refrigerant loop of the downwind side of secondary unit 20, thus can detect in the exit of secondary unit 20 with overheated.In addition, can not to occur in when heating running with supercooling or error detection temperature, running become unstable situation due to crushing during cooling operation.
In addition, air conditioner 1 according to the present embodiment, because Indoor Thermal hands over temperature sensor 32 to be configured in the heat-exchange tube of the pars intermedia of indoor heat converter 14, therefore, it is possible to the condensation temperature near the pars intermedia of indoor heat converter 14 when freezing and heat running or evaporating temperature detected.
And, air conditioner 1 according to the present embodiment, the liquid inlet 17a of secondary unit 20 is in below, and Indoor Thermal hands over temperature sensor 32 to be configured near the upper end of secondary unit 20, therefore, it is possible to expand the scope in the evaporation territory of secondary unit 20.
In addition, air conditioner 1 according to the present embodiment, main heat exchanger 21 has: preceding heat exchanger 21a, and it is configured in the front face side in indoor set 2; With back-surface heat exchanger 21b, it is configured in the rear side in indoor set 2, secondary unit 20 is configured in the front of preceding heat exchanger 21a, thus can expand the area of secondary unit 20, therefore, it is possible to expand the scope of the evaporation territory change of secondary unit 20.
Below with reference to the accompanying drawings embodiments of the present invention are illustrated, but should think that concrete structure is not limited to these embodiments.According to claims, scope of the present invention is not shown according to the explanation of above-mentioned embodiment, scope of the present invention also comprises the change in all implications with claims equalization and scope.
In the above-described embodiment, secondary unit and main heat exchanger also can be integrally constituted.Therefore, in this case, indoor heat converter is integrally constituted, and the most weather side of indoor heat converter is provided with the part corresponding with secondary unit, its downwind side is provided with the part corresponding with main heat exchanger.
In addition, in the above-described embodiment, the air conditioner of the running carried out under the dehumidifying operation mode and heating mode of operation of cooling operation pattern, regulation is illustrated, but also can is the air conditioner of the running carried out under adopting the method beyond the dehumidifying operation mode specified to carry out the dehumidifying operation mode of dehumidifying running.
Utilizability in industry
If use the present invention, then can the sensor that evaporates of dual-purpose tracer liquid cold-producing medium and detect the sensor heated with condensation temperature during cooling operation or evaporating temperature.
Label declaration
1 air conditioner;
2 indoor sets;
3 off-premises stations;
10 compressors;
12 outdoor heat converters;
13 expansion valves;
14 indoor heat converters;
16 indoor fans;
20 secondary units;
21 main heat exchangers.
Claims (5)
1. an air conditioner, is characterized in that,
Described air conditioner possesses refrigerant loop compressor, outdoor heat converter, expansion valve and indoor heat converter coupled together,
Described indoor heat converter has: secondary unit, and when dehumidifying running, described secondary unit is configured in most weather side and is provided liquid refrigerant; And main heat exchanger, it is configured in the downstream of described secondary unit,
When dehumidifying running, described secondary unit has the mistake thermal domain in the evaporation territory of cold-producing medium evaporation for liquid and the downstream in described evaporation territory,
Be configured with temperature detecting unit at the downwind side of described secondary unit, described temperature detecting unit is for detecting the situation that liquid refrigerant evaporates is complete in described secondary unit.
2. air conditioner according to claim 1, is characterized in that,
Described temperature detecting unit is configured near the central authorities of the refrigerant path of described indoor heat converter.
3. air conditioner according to claim 1 and 2, is characterized in that,
The liquid inlet of described secondary unit is in below,
Described temperature detecting unit is configured near the upper end of described secondary unit.
4. air conditioner according to claim 1 and 2, is characterized in that,
Described main heat exchanger has: preceding heat exchanger, and it is configured in the front face side in indoor set; And back-surface heat exchanger, it is configured in the rear side in indoor set,
Described secondary unit is configured in the front of described preceding heat exchanger.
5. air conditioner according to claim 3, is characterized in that,
Described main heat exchanger has: preceding heat exchanger, and it is configured in the front face side in indoor set; And back-surface heat exchanger, it is configured in the rear side in indoor set,
Described secondary unit is configured in the front of described preceding heat exchanger.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP2012-093126 | 2012-04-16 | ||
| JP2012-093126 | 2012-04-16 | ||
| JP2012093126A JP5310904B1 (en) | 2012-04-16 | 2012-04-16 | Air conditioner |
| PCT/JP2013/060348 WO2013157401A1 (en) | 2012-04-16 | 2013-04-04 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104246387A CN104246387A (en) | 2014-12-24 |
| CN104246387B true CN104246387B (en) | 2015-11-25 |
Family
ID=49383365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380020149.XA Active CN104246387B (en) | 2012-04-16 | 2013-04-04 | Air conditioner |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2857768B1 (en) |
| JP (1) | JP5310904B1 (en) |
| CN (1) | CN104246387B (en) |
| ES (1) | ES2822249T3 (en) |
| WO (1) | WO2013157401A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3013909B1 (en) | 2013-06-26 | 2017-07-26 | 3M Innovative Properties Company | Stain resistant microsphere articles |
| CN113348328B (en) * | 2019-02-05 | 2023-03-14 | 三菱电机株式会社 | Air conditioner |
| JP6881641B2 (en) * | 2019-03-25 | 2021-06-02 | ダイキン工業株式会社 | Air conditioner and air conditioner system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634184A (en) * | 1992-07-21 | 1994-02-08 | Fujitsu General Ltd | Air-conditioning machine |
| JPH0914727A (en) * | 1995-06-28 | 1997-01-17 | Toshiba Corp | Air conditioner |
| CN1145468A (en) * | 1995-06-28 | 1997-03-19 | 株式会社东芝 | Air conditioner |
| CN1288132A (en) * | 1999-09-09 | 2001-03-21 | 东芝开利株式会社 | Indoor unit for air conditioner |
| CN1293340A (en) * | 1999-10-14 | 2001-05-02 | 夏普公司 | Air conditioner and humidifier dehumidifier installed in it |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3526367B2 (en) * | 1995-06-28 | 2004-05-10 | 東芝キヤリア株式会社 | Air conditioner |
| JP3379864B2 (en) * | 1995-09-29 | 2003-02-24 | 東芝キヤリア株式会社 | Air conditioner |
| JP2003232553A (en) * | 2002-02-07 | 2003-08-22 | Daikin Ind Ltd | Air conditioner |
| JP2010281548A (en) * | 2009-06-08 | 2010-12-16 | Sharp Corp | Air conditioner |
-
2012
- 2012-04-16 JP JP2012093126A patent/JP5310904B1/en active Active
-
2013
- 2013-04-04 WO PCT/JP2013/060348 patent/WO2013157401A1/en unknown
- 2013-04-04 ES ES13777485T patent/ES2822249T3/en active Active
- 2013-04-04 CN CN201380020149.XA patent/CN104246387B/en active Active
- 2013-04-04 EP EP13777485.7A patent/EP2857768B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634184A (en) * | 1992-07-21 | 1994-02-08 | Fujitsu General Ltd | Air-conditioning machine |
| JPH0914727A (en) * | 1995-06-28 | 1997-01-17 | Toshiba Corp | Air conditioner |
| CN1145468A (en) * | 1995-06-28 | 1997-03-19 | 株式会社东芝 | Air conditioner |
| CN1288132A (en) * | 1999-09-09 | 2001-03-21 | 东芝开利株式会社 | Indoor unit for air conditioner |
| CN1293340A (en) * | 1999-10-14 | 2001-05-02 | 夏普公司 | Air conditioner and humidifier dehumidifier installed in it |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013221672A (en) | 2013-10-28 |
| EP2857768A1 (en) | 2015-04-08 |
| JP5310904B1 (en) | 2013-10-09 |
| EP2857768B1 (en) | 2020-08-26 |
| EP2857768A4 (en) | 2016-04-06 |
| WO2013157401A1 (en) | 2013-10-24 |
| ES2822249T3 (en) | 2021-04-29 |
| CN104246387A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104246386B (en) | Air conditioner | |
| CN203704143U (en) | Air conditioner | |
| CN104220818B (en) | Air conditioner | |
| US8567203B2 (en) | Air conditioner and defrosting operation method of the same | |
| JP5709993B2 (en) | Refrigeration air conditioner | |
| CN105637300B (en) | Air conditioner | |
| EP2581692B1 (en) | Air conditioner | |
| US9752803B2 (en) | Heat pump system with a flow directing system | |
| CN104220816A (en) | Air conditioner | |
| US20100251742A1 (en) | Hvac&r system valving | |
| CN104913415A (en) | Energy storage-type air conditioning system | |
| CN103765111A (en) | Air conditioner and refrigeration cycle device | |
| CN110068086A (en) | Heat pump air conditioning system and its defrosting control method | |
| JP5404761B2 (en) | Refrigeration equipment | |
| WO2012112802A2 (en) | Heat pump system with a flow directing system | |
| JP2012202624A (en) | Refrigeration cycle apparatus | |
| JP4966742B2 (en) | Air conditioner | |
| CN104246387B (en) | Air conditioner | |
| CN104246388B (en) | Air conditioner | |
| JP2014126310A (en) | Air conditioner | |
| US11221151B2 (en) | Hot gas reheat systems and methods | |
| JP5803898B2 (en) | Air conditioner | |
| KR101230149B1 (en) | Air conditioning apparatus | |
| US20240159411A1 (en) | Heat recovery ventilation system with defrosting bypass | |
| US20190056160A1 (en) | Air-conditioning apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |