WO2005124237A1 - 空気調和装置の室内ユニット - Google Patents
空気調和装置の室内ユニット Download PDFInfo
- Publication number
- WO2005124237A1 WO2005124237A1 PCT/JP2005/010661 JP2005010661W WO2005124237A1 WO 2005124237 A1 WO2005124237 A1 WO 2005124237A1 JP 2005010661 W JP2005010661 W JP 2005010661W WO 2005124237 A1 WO2005124237 A1 WO 2005124237A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- heat
- heat transfer
- indoor
- unit
- 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.)
- Ceased
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- 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
- F24F3/1405—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 in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
-
- 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
- F24F3/153—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 with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
Definitions
- the present invention relates to an indoor unit of an air conditioner, particularly to an indoor unit of an air conditioner connected to a heat source unit via a liquid refrigerant communication pipe and a gas refrigerant communication pipe to form a refrigerant circuit.
- a heat source unit having a compressor and a heat source side heat exchanger, and an indoor unit having an indoor expansion mechanism and an indoor heat exchanger have been connected via a liquid refrigerant communication pipe and a gas refrigerant communication pipe.
- the high-pressure gas refrigerant compressed and discharged by the compressor is condensed in the heat source side heat exchange ⁇ to obtain a high-pressure liquid refrigerant.
- the high-pressure liquid refrigerant is sent to the indoor unit via the liquid refrigerant communication pipe.
- the high-pressure liquid refrigerant sent to the indoor unit is depressurized by the indoor expansion mechanism to reduce the high-pressure liquid refrigerant into a low-pressure gas-liquid two-phase refrigerant.
- the low-pressure gas refrigerant is sent to the heat source unit via the gas refrigerant communication pipe, and then sucked into the compressor again to perform a refrigeration cycle operation.
- the indoor heat exchange of the indoor unit functions as an evaporator of the refrigerant for cooling the indoor air by heat exchange between the refrigerant decompressed by the indoor expansion mechanism and the indoor air.
- the water contained in the indoor air condenses due to the cooling of the indoor air to generate drain water.
- This drain water flows down and is received by a drain pan arranged below the indoor heat exchanger, and then is discharged from the indoor unit through a drain pipe.
- the drain water generated in the indoor unit is generated by cooling the indoor air during indoor heat exchange, and its temperature is lower than that of the surroundings.
- the high-pressure liquid refrigerant flowing into the indoor unit and the drain water discharged from the indoor unit through the drain pipe are connected to the outside of the indoor unit.
- the heat exchange using the heat exchange double pipe installed in the room raises the temperature of the drain water and cools the liquid refrigerant flowing into the indoor unit, thereby eliminating the heat insulation of the drain pipe.
- a harmonic device for example, see Patent Document 1.
- Patent Document 1 JP-A-2003-222441
- An object of the present invention is to provide an indoor unit of an air conditioner that can omit heat insulation of a drain pipe without increasing the number of construction steps when installing the air conditioner.
- the indoor unit of the air conditioner according to the first invention is an indoor unit of an air conditioner that is connected to a heat source unit via a liquid refrigerant communication pipe and a gas refrigerant communication pipe to form a refrigerant circuit.
- a second heat exchange unit, a second heat exchange unit, and an indoor expansion mechanism are connected to the gas refrigerant communication pipe.
- the second heat exchange section is arranged below the first heat exchange section and is connected to the liquid refrigerant communication pipe.
- the indoor expansion mechanism is connected between the first heat exchange unit and the second heat exchange unit.
- the indoor unit allows the refrigerant sent from the heat source unit through the liquid refrigerant communication pipe to pass through the second heat exchange section, the indoor expansion mechanism, and the first heat exchange section in this order, thereby causing the first heat exchange section to pass through the indoor expansion mechanism.
- Function as a refrigerant evaporator that cools the air by heat exchange between the depressurized refrigerant and the air in the second heat exchange section. It is possible to function as a heater that heats the drain water by heat exchange between the flowing drain water and the refrigerant sent from the heat source unit.
- a first heat exchange unit that functions as a refrigerant evaporator
- the built-in second heat exchange section that heats the generated drain water since the built-in second heat exchange section that heats the generated drain water is built-in, it does not increase the man-hours required to install the air conditioning equipment.
- the cooled heat of the drain water can be efficiently used for cooling the liquid refrigerant.
- the passing sound generated when the liquid refrigerant is decompressed in the indoor expansion mechanism becomes a problem.
- the passing sound generated when the liquid refrigerant is depressurized in the indoor expansion mechanism can be reduced by cooling the liquid refrigerant in the second heat exchange unit.
- the second heat exchange section is installed below the first heat exchange section, and can perform heating before drain water generated in the first heat exchange section flows down and is received by the drain pan. Therefore, there is no place where dew condensation occurs due to drain water, and the heat insulation thickness of the drain pan can be reduced, for example, because the heat insulation of the drain pipe can be omitted. Further, for example, it is easier to secure a heat transfer area between the liquid refrigerant and the drain water than when the drain water received by the drain pan is heated.
- the indoor unit of the air conditioner according to the second invention is the indoor unit of the air conditioner according to the first invention, wherein the first heat exchange unit has one end connected to the gas refrigerant communication pipe and the other end.
- the second heat exchange section has a first end connected to the liquid refrigerant communication pipe and the other end connected to the indoor expansion mechanism, and extends substantially vertically around the second heat transfer pipe. And a plurality of second heat transfer fin portions provided as described above.
- the type of heat exchanger of the first heat exchange section and the second heat exchange section includes a heat transfer tube section and a heat transfer fin section provided around the heat transfer tube section. , And adopts a fin and tube type heat exchanger. Since the first and second heat transfer fins are provided so as to extend substantially vertically, the drain water generated in the first heat transfer tube and the first heat transfer fin of the first heat exchange unit is Then, it flows down along the first heat transfer fins, reaches the second heat exchange unit, and is heated while flowing down along the second heat transfer fins of the second heat exchange unit.
- the drain water generated in the heat exchange section can flow down to the first heat exchange section force to the second heat exchange section without fail, and also in the second heat exchange section, the drain water flows along the second heat transfer fin section. Therefore, heat can be reliably transferred between the liquid refrigerant and the drain water.
- the first heat transfer fin portion and the second heat transfer fin portion are integrally formed. Have been.
- the refrigerant flowing through the first heat transfer tube portion and the refrigerant flowing through the second heat transfer tube portion can perform heat exchange by heat transfer between the first heat transfer fin portion and the second heat transfer fin portion.
- the first heat transfer fin section and the second heat transfer fin section are formed in a body, so that the drain water generated in the first heat exchange section is transferred to the first heat exchange section. From the first heat transfer fin portion and the second heat transfer fin portion, and further cools the liquid refrigerant flowing in the second heat transfer tube portion by heat transfer between the first heat transfer fin portion and the second heat transfer fin portion. be able to.
- the cooling by collecting the cold of the drain water and the cooling by the heat transfer between the heat transfer fins can further reduce the passing sound generated when the liquid refrigerant is depressurized in the indoor expansion mechanism.
- FIG. 1 is a schematic refrigerant circuit diagram of an air conditioner employing an indoor unit according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing a schematic structure of the interior of an indoor unit according to the present invention (illustration of a longitudinally intermediate portion of the heat transfer tube is omitted).
- FIG. 3 is a view taken in the direction of the arrow X in FIG. 2, and is a diagram illustrating flows of refrigerant and drain water in the indoor heat exchanger during a cooling operation.
- FIG. 1 is a schematic refrigerant circuit diagram of an air conditioner 1 that employs an indoor unit 5 according to an embodiment of the present invention.
- the air conditioner 1 is a device used for indoor cooling and heating of a building or the like by performing a vapor compression refrigeration cycle operation.
- the air conditioner 1 mainly includes a heat source unit 2, an indoor unit 5, a liquid refrigerant communication pipe 6 for connecting the heat source unit 2 and the indoor unit 5, and a gas refrigerant communication pipe 7. That is, the vapor compression type refrigerant circuit 10 of the air conditioner 1 of the present embodiment is configured by connecting the heat source unit 2, the indoor unit 5, the liquid refrigerant communication pipe 6, and the gas refrigerant communication pipe 7. It is configured.
- the heat source unit 2 is installed on the roof of a building or the like, and is connected to the indoor unit 5 via a liquid refrigerant communication pipe 6 and a gas refrigerant communication pipe 7, and a refrigerant circuit 10 is formed between the indoor units 5. are doing.
- the heat source unit 2 mainly includes a heat source side refrigerant circuit 10b that forms a part of the refrigerant circuit 10.
- This heat source side refrigerant circuit 10b mainly includes a compressor 21, a four-way switching valve 22, a heat source side heat exchanger 23, and a liquid side shutoff valve 2. 4 and a gas side shutoff valve 25.
- the compressor 21 is a positive displacement compressor.
- the power of the compressor 21 is only one. Not limited to this, two or more compressors are connected in parallel according to the number of connected indoor units and the like. Is also good.
- the four-way switching valve 22 is a valve for switching the direction of the flow of the refrigerant.
- the four-way switching valve 22 connects the discharge side of the compressor 21 and the gas side of the heat source side heat exchange 23 and connects the compressor. 2 Connect the suction side of 1 to the gas refrigerant communication pipe 7 side (see the solid line of the four-way switching valve 22 in FIG. 1), and connect the discharge side of the compressor 21 and the gas refrigerant communication pipe 7 side during the heating operation.
- the heat source side heat exchanger 23 is a cross-fin type fin 'and-tube type heat exchanger ⁇ constituted by a plurality of heat transfer tubes and a plurality of plate fins, and uses water or outdoor air as a heat source.
- the heat exchanger functions as a condenser of the refrigerant during the cooling operation and functions as an evaporator of the refrigerant during the heating operation.
- the heat source side heat exchanger 23 has a gas side connected to the four-way switching valve 22 and a liquid side connected to the liquid refrigerant communication pipe 6.
- the liquid-side stop valve 24 and the gas-side stop valve 25 are valves provided at the connection ports with external devices and pipes (specifically, the liquid refrigerant communication pipe 6 and the gas refrigerant communication pipe 7).
- the liquid side closing valve 24 is connected to the heat source side heat exchange 23.
- the gas side shut-off valve 25 is connected to the four-way switching valve 22.
- the indoor unit 5 is installed by being embedded in or suspended from an indoor ceiling of a building or the like, or mounted on an indoor wall surface.
- the indoor unit 5 is connected to the heat source unit 2 via a liquid refrigerant communication pipe 6 and a gas refrigerant communication pipe 7, and forms a part of the refrigerant circuit 10.
- FIG. 2 is a perspective view showing a schematic structure inside the indoor unit 5 (illustration of an intermediate portion in a longitudinal direction of the heat transfer tube is omitted).
- the indoor unit 5 mainly includes a use-side refrigerant circuit 10a that forms a part of the refrigerant circuit 10.
- the indoor refrigerant circuit 10a mainly includes, in the present embodiment, the indoor expansion valve 51 (an indoor expansion mechanism) including an electric expansion valve for adjusting the flow rate of the refrigerant flowing in the indoor refrigerant circuit 10a.
- indoor heat exchange capable of exchanging heat between the refrigerant and indoor air drawn into the unit by an indoor fan (not shown).
- the indoor heat exchanger 52 is a cross-fin type fin 'and' tube type heat exchanger composed of a plurality of heat transfer tubes and a plurality of plate fins. More specifically, the indoor heat exchanger 52 mainly includes a plurality of plate fins 61 having a plurality of through holes 71a and extending in a substantially vertical direction and spaced at intervals in the plate thickness direction. It has a plurality of heat transfer tubes 71 that penetrate through holes 6 la of fins 61. The through holes 61a of the plate fins 61 are arranged so that the heat transfer tubes 71 penetrate from the upper part to the lower part of the plate fins 61.
- the heat transfer tubes 71 are sequentially connected at both ends in the length direction via U-shaped tubes 72, and the first heat transfer tube 71 also has a tube transfer force of the plurality of heat transfer tubes 71 arranged above the indoor heat exchanger. From the heat pipe section 73 and the tube group of the plurality of heat transfer pipes 71 arranged below the first heat transfer pipe section 73 (in FIG. 2, two heat transfer pipes 71 arranged below the indoor heat exchanger). And a second heat transfer tube section 74.
- the first heat transfer pipe 73 has one end connected to the gas refrigerant communication pipe 7 and the other end connected to the indoor expansion valve 51.
- the second heat transfer tube 74 has one end connected to the liquid refrigerant communication pipe 6 and the other end connected to the indoor expansion valve 51.
- a portion of the plurality of plate fins 61 corresponding to the first heat transfer tube 73 above the indoor heat exchanger 52 is referred to as a first heat transfer fin 63, and a second heat transfer fin below the indoor heat exchanger 52 is provided.
- the portion corresponding to the tube portion 74 is referred to as a second heat transfer fin portion 64.
- the indoor heat exchange includes a first heat transfer pipe portion 73 having an upper end connected to the gas refrigerant communication pipe 7 at one end, and a second end connected to the indoor expansion valve 51, (1)
- a first heat exchange section 53 having a plurality of first heat transfer fin sections 63 provided around the heat transfer tube section 73 so as to extend substantially vertically, and a lower portion thereof has one end having a liquid end.
- a second heat transfer pipe section 74 connected to the refrigerant communication pipe 6 and the other end connected to the indoor expansion valve 51;
- a second heat exchanging portion 54 having a plurality of second heat transfer fin portions 64 provided on the outer peripheral portion thereof so as to extend substantially vertically.
- the drain water generated by cooling the indoor air in the indoor heat exchanger 52 (specifically, the first heat exchange unit 53) during the cooling operation is provided below the indoor heat exchanger 52.
- a drain pan 55 is provided to receive the waste.
- the drain pan 55 is provided with a drain pipe 56 (see FIG. 1) for discharging drain water received by the drain pan 55.
- the lower end of the indoor heat exchange (specifically, the lower end of the second heat transfer fin portion 64 of the second heat exchange portion 54) is arranged at an interval so as not to contact the bottom of the drain pan 55. Then, the drain water after flowing down the indoor heat exchanger 52 and received by the drain pan 55 is prevented from contacting.
- the refrigerant sent from the heat source unit 2 through the liquid refrigerant communication pipe 6 is supplied to the second heat exchange unit 54, the indoor expansion valve 51, and the first heat exchange unit 53.
- the first heat exchange unit 53 functions as a refrigerant evaporator that cools air by heat exchange between the refrigerant depressurized by the indoor expansion valve 51 and indoor air
- the second heat exchange unit 54 The first heat exchange unit 53 functions as a heater that heats the drain water by heat exchange between the drain water generated by cooling the indoor air and flowing down to the second heat exchange unit 54 and the refrigerant sent from the heat source unit 2. It is possible.
- the indoor refrigerant circuit 10a, the heat source side refrigerant circuit 10b, and the refrigerant communication pipes 6, 7 are connected to form the refrigerant circuit 10 of the air conditioner 1. Then, the air conditioner 1 of the present embodiment can perform the operation by switching between the cooling operation and the heating operation by the four-way switching valve 22.
- FIG. 3 is a view taken in the direction of the arrow X in FIG. 2, and is a diagram illustrating the flow of the refrigerant and the drain water in the indoor heat exchanger during the cooling operation.
- the four-way switching valve 22 is in the state shown by the solid line in FIG. Is connected to the gas side of the heat source side heat exchanger 23, and the suction side of the compressor 21 is connected to the gas side of the indoor heat exchange.
- the liquid-side shutoff valve 24 and the gas-side shutoff valve 25 are opened, and the indoor expansion valve 51 controls the flow rate of the refrigerant flowing into the indoor heat exchanger 52 according to the load in the air-conditioned space where the indoor unit 5 is installed. The opening is adjusted so that
- the compressor 21 When the compressor 21 is started in the state of the refrigerant circuit 10, the low-pressure gas refrigerant is sucked into the compressor 21 and compressed to become a high-pressure gas refrigerant. After that, the high-pressure gas refrigerant is sent to the heat source side heat exchanger 23 via the four-way switching valve 22, and exchanges heat with water or outdoor air as a heat source to be condensed and saturated or slightly supercooled. High-pressure liquid refrigerant.
- the high-pressure liquid refrigerant is sent to the indoor unit 5 via the liquid-side shut-off valve 24 and the liquid refrigerant communication pipe 6.
- the high-pressure liquid refrigerant sent to the indoor unit 5 passes through the second heat exchange section 54 (specifically, the second heat transfer pipe section 74) of the indoor heat exchanger 52, and then is decompressed by the indoor expansion valve 51. It becomes a gas-liquid two-phase refrigerant.
- the refrigerant in the gas-liquid two-phase state flows into the first heat exchange section 53 (specifically, the first heat transfer pipe section 73), exchanges heat with indoor air, and is evaporated to a saturated or slightly overheated state.
- Low-pressure gas refrigerant At this time, the drain water generated by cooling the indoor air in the first heat exchange section 53 mainly flows down along the first heat transfer fin section 63 of the first heat exchange section 53 and flows to the second heat exchange section 54.
- the first heat transfer fin portion 63 and the second heat transfer fin portion 64 are members formed integrally (ie, plate fins 61), and thus the first heat transfer tube portion
- the cold heat of the refrigerant flowing in the inside 73 is transferred to the liquid refrigerant flowing in the second heat transfer tube part 74 by heat conduction between the first heat transfer fin part 63 and the second heat transfer fin part 64,
- the liquid coolant flowing in the second heat transfer tube section 74 is further cooled.
- the low-pressure gas refrigerant evaporated in the first heat exchange unit 53 is sent to the heat source unit 2 via the gas refrigerant communication pipe 7, and is sent through the gas-side shut-off valve 25 and the four-way switching valve 22. Then, it is sucked into the compressor 21 again.
- the four-way switching valve 22 is in the state shown by the broken line in FIG. 1, that is, the discharge side of the compressor 21 is connected to the gas side of the indoor heat exchanger 52, and the suction side of the compressor 21 is the heat source side.
- the heat exchange 23 is connected to the gas side.
- the liquid-side shutoff valve 24 and the gas-side shutoff valve 25 are opened, and the indoor expansion valve 51 controls the flow rate of the refrigerant flowing into the indoor heat exchanger 52 according to the load in the air-conditioned space where the indoor unit 5 is installed. The opening is adjusted so that
- the compressor 21 When the compressor 21 is started in the state of the refrigerant circuit 10, the low-pressure gas refrigerant is sucked into the compressor 21 and is compressed to become a high-pressure gas refrigerant.
- the four-way switching valve 22, the gas-side shut-off valve 25 and It is sent to the indoor unit 5 via the gas refrigerant communication pipe 5.
- the high-pressure gas refrigerant sent to the indoor unit 5 flows into the first heat exchange section 53 (specifically, the first heat transfer pipe section 73) of the indoor heat exchanger 52 and exchanges heat with indoor air. After being condensed to become a high-pressure liquid refrigerant, the pressure is reduced by the indoor expansion valve 51 to become a low-pressure refrigerant in a gas-liquid two-phase state. After passing through the second heat exchange section 54 (specifically, the second heat transfer pipe section 74), the low-pressure gas-liquid two-phase refrigerant flows into the heat source unit 2 via the liquid refrigerant communication pipe 6 Sent.
- the low-pressure gas-liquid two-phase refrigerant sent to the heat source unit 2 flows into the heat source side heat exchanger 23 via the liquid side closing valve 24.
- the low-pressure gas-liquid two-phase refrigerant flowing into the heat source side heat exchanger 23 exchanges heat with water or outdoor air as a heat source and is condensed into a low-pressure gas refrigerant. Via the compressor 21 again.
- the indoor unit 5 of the air conditioner 1 of the present embodiment has the following features.
- ( ⁇ ) The indoor unit 5 of the air conditioner 1 of the present embodiment has a built-in second heat exchange unit 54 that heats the drain water generated in the first heat exchange unit 53 that functions as a refrigerant evaporator.
- COP coefficient of performance
- the second heat exchanging unit 54 is installed below the first heat exchanging unit 53, and heats the drain water generated in the first heat exchanging unit 53 until it flows down and is received by the drain pan 55. Since it can be performed, there is no place where dew condensation occurs due to drain water, and the heat insulation thickness of the drain pan 55 can be reduced, for example, by simply eliminating the heat insulation of the drain pipe 56. In addition, it is easier to secure a heat transfer area between the liquid refrigerant and the drain water than when the drain water received by the drain pan 55 is heated.
- the heat transfer tube units 73 and 74 and the heat transfer tube units 73 and 74 A so-called fin-and-tube type heat exchanger consisting of heat transfer fins 63 and 64 provided around is adopted. Since the first and second heat transfer fin portions 63 and 64 are provided so as to extend substantially vertically, the first heat transfer tube portion 73 and the first heat transfer fin portion 63 of the first heat exchange portion 53 are provided. The drain water generated in step (1) flows down along the first heat transfer fin section 63, reaches the second heat exchange section 54, and does not flow down along the second heat transfer fin section 64 of the second heat exchange section 54.
- the drain water generated in the first heat exchange section 53 can flow down reliably from the first heat exchange section 53 to the second heat exchange section 54. Also, in the second heat exchange section 54, since the drain water can flow down along the second heat transfer fin section 74, heat transfer between the liquid refrigerant and the drain water can be reliably performed. .
- the first heat transfer fin portion 63 and the second heat transfer Since the heat fin portion 64 and the heat fin portion 64 are formed integrally, the drain water generated in the first heat exchange portion 53 can flow down from the first heat exchange portion 53 to the second heat exchange portion 54 more reliably.
- the liquid refrigerant flowing in the second heat transfer tube portion 74 can be further cooled by the heat transfer between the first heat transfer fin portion 63 and the second heat transfer fin portion 73.
- the cooling force is also reduced by the recovery of the cooling water of the drain water, and the cooling sound generated by the heat conduction between the heat transfer fins 63 and 64 further reduces the passing sound generated when the liquid refrigerant is depressurized in the indoor expansion valve 51. It can be reduced.
- the indoor unit may be configured by connecting the heat exchange unit with an indoor expansion valve.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-176552 | 2004-06-15 | ||
| JP2004176552A JP2006002949A (ja) | 2004-06-15 | 2004-06-15 | 空気調和装置の室内ユニット |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005124237A1 true WO2005124237A1 (ja) | 2005-12-29 |
Family
ID=35509776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/010661 Ceased WO2005124237A1 (ja) | 2004-06-15 | 2005-06-10 | 空気調和装置の室内ユニット |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006002949A (ja) |
| WO (1) | WO2005124237A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885361A (zh) * | 2015-12-10 | 2017-06-23 | Lg电子株式会社 | 室外换热器以及包含该室外换热器的空调装置 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187395A (ja) * | 2006-01-13 | 2007-07-26 | Toshiba Kyaria Kk | 空気調和機の室内機 |
| JP5028927B2 (ja) * | 2006-09-22 | 2012-09-19 | ダイキン工業株式会社 | 空気調和装置 |
| KR101927485B1 (ko) | 2012-05-23 | 2018-12-11 | 엘지디스플레이 주식회사 | 표시장치 어레이 기판 및 그 제조방법 |
| JP6253513B2 (ja) * | 2014-05-26 | 2017-12-27 | 三菱電機株式会社 | 空気調和機の室内ユニット |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5768413U (ja) * | 1980-10-14 | 1982-04-24 |
-
2004
- 2004-06-15 JP JP2004176552A patent/JP2006002949A/ja active Pending
-
2005
- 2005-06-10 WO PCT/JP2005/010661 patent/WO2005124237A1/ja not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5768413U (ja) * | 1980-10-14 | 1982-04-24 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885361A (zh) * | 2015-12-10 | 2017-06-23 | Lg电子株式会社 | 室外换热器以及包含该室外换热器的空调装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006002949A (ja) | 2006-01-05 |
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