CN102374592B - Heat exchanger and air conditioner on which this heat exchanger is mounted - Google Patents
Heat exchanger and air conditioner on which this heat exchanger is mounted Download PDFInfo
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- CN102374592B CN102374592B CN201110241862.XA CN201110241862A CN102374592B CN 102374592 B CN102374592 B CN 102374592B CN 201110241862 A CN201110241862 A CN 201110241862A CN 102374592 B CN102374592 B CN 102374592B
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- Prior art keywords
- pipe arrangement
- heat exchanger
- copper
- aluminium
- aluminum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0068—Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
- F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchanger in which a breakage of a connection pipeline during installation or the like can be prevented is obtained. A heat exchanger (10) is provided with a heat transfer pipe which is formed of aluminum or aluminum alloy and a connection pipeline (20) through which a refrigerant flowing in from the heat transfer pipe or a refrigerant flowing into the heat transfer pipe passes and is disposed in an air conditioner, and the connection pipeline (20) has a gas pipeline (30) and a liquid pipeline (40). Also, each of the gas pipeline (30) and the liquid pipeline (40) is constituted by connecting an aluminum pipeline (31) or (41) formed of aluminum or aluminum alloy and a copper pipeline (32) or (42) formed of copper or copper alloy by a connection portion (37) or (47), respectively, and each of descending portions (33) and (43) is formed. Each of the connection portions (37) and (47) is arranged in straight portions (35) and (45) of the descending portions (33) and (43), respectively, and in the straight portions (35) and (45), the aluminum pipelines (31) and (41) are longer than the copper pipelines (32) and (42).
Description
Technical field
The present invention relates to a kind of heat exchanger and carried the air conditioner of this heat exchanger, especially relate to and a kind ofly by aluminum or aluminum alloy, form the heat exchanger of heat-transfer pipe and carried the air conditioner of this heat exchanger.
Background technology
The current known heat exchanger (hereinafter referred to as aluminum-made heat exchanger) that is formed heat-transfer pipe by aluminum or aluminum alloy that has.Such heat exchanger by the heat-transfer pipe being formed by aluminum or aluminum alloy (or, the refrigerant piping being formed by aluminum or aluminum alloy being connected with this heat-transfer pipe.Hereinafter referred to as aluminium pipe arrangement) the upper refrigerant piping (hereinafter referred to as copper pipe arrangement) being formed by copper or copper alloy that connects, be assembled into freeze cycle loop.Like this, in the situation that using copper pipe arrangement to pack aluminum-made heat exchanger into freeze cycle loop, when being attached to the water of copper pipe arrangement and being attached to heat-transfer pipe or aluminium pipe arrangement, there is the problem of heat-transfer pipe and aluminium pipe arrangement generation galvano-cautery (corroding between different metal).
Therefore, in the past, proposed to seek to prevent from occurring the heat exchanger of galvano-cautery (corroding between different metal) on the heat-transfer pipe being formed by aluminum or aluminum alloy or aluminium pipe arrangement.As such aluminum-made heat exchanger, for example proposed as lower device, , " by air conditioner main body with by the fixed part 11 that freeze cycle unit is fixed on air conditioner main body, form, this freeze cycle unit comprises compressor, the heat exchanger 6 of aluminum or aluminum alloy system and the copper being connected with this heat exchanger 6 or the refrigerant piping 7 of copper alloy system, the part entirety of top of the heat exchanger 6 that is positioned at refrigerant piping 7 is fallen to prevent pipe arrangement portion 9 as the water droplet tilting towards refrigerant piping 7 from heat exchanger 6 downwards, water droplet flows downwards along pipe arrangement, prevent the galvano-cautery of the heat exchanger 6 that copper ion causes." (for example,, with reference to patent documentation 1).
[patent documentation 1] Japanese kokai publication hei 6-300303 communique (summary, Fig. 1)
For example, the air conditioner that has carried aluminum-made heat exchanger in the past (indoor set) being installed or during telephone-moving, the connecting pipings (above-mentioned aluminium pipe arrangement and copper pipe arrangement) of this aluminum-made heat exchanger is connected to freeze cycle loop by aluminum-made heat exchanger, therefore, to any direction distortion.Now, the load applying to connecting pipings while not considering installation or telephone-moving due to aluminum-made heat exchanger in the past, so the problem that while there is installation or telephone-moving, connecting pipings damages.
Summary of the invention
The present invention makes for solving problem as above, and its object is to obtain a kind of air conditioner that can prevent the aluminum-made heat exchanger of connecting pipings breakage and carried this heat exchanger when installation or telephone-moving.
Heat exchanger of the present invention has the heat-transfer pipe being formed by aluminum or aluminum alloy and the connecting pipings passing through for the cold-producing medium flowing into from heat-transfer pipe or to the cold-producing medium of heat-transfer pipe inflow, it is the heat exchanger that is arranged at air conditioner, wherein, connecting pipings has the liquid pipe arrangement that gas pipe arrangement that gas refrigerant passes through and liquid refrigerant or gas-liquid two-phase cold-producing medium pass through.In addition, gas pipe arrangement and liquid pipe arrangement have respectively aluminium pipe arrangement and copper pipe arrangement, and aluminium pipe arrangement is formed by aluminum or aluminum alloy, and an end of aluminium pipe arrangement is connected with heat-transfer pipe, copper pipe arrangement is formed by copper or copper alloy, and an end of copper pipe arrangement is connected with another end of aluminium pipe arrangement.On gas pipe arrangement and liquid pipe arrangement, be formed with respectively copper pipe arrangement be configured in compared with aluminium pipe arrangement gravity direction below the portion that hangs down.And the connecting portion of aluminium pipe arrangement and copper pipe arrangement is configured in the straight line portion of the portion of hanging down, at the straight line portion of the portion of hanging down, aluminium pipe arrangement is longer than copper pipe arrangement.
In addition, air conditioner of the present invention is equipped with above-mentioned heat exchanger.
The effect of invention
In the present invention, the connecting portion of the aluminium pipe arrangement of connecting pipings (refrigerant piping being formed by aluminum or aluminum alloy) and copper pipe arrangement (refrigerant piping being formed by copper or copper alloy) is configured in the straight line portion of the portion of hanging down.And at the straight line portion of the portion of hanging down, aluminium pipe arrangement is longer than copper pipe arrangement.Therefore,, even in connecting pipings distortion, load is applied in the situation on connecting pipings, also can prevent connecting pipings breakage.
Accompanying drawing explanation
Fig. 1 is the key diagram that represents the state that arranges of the air conditioner of embodiments of the present invention.
Fig. 2 is the stereogram that represents the heat exchanger of embodiments of the present invention.
Fig. 3 is the front view (main position enlarged drawing) that represents the heat exchanger of embodiments of the present invention.
Fig. 4 is the side view that represents the heat exchanger of embodiments of the present invention.
Fig. 5 is the top view that represents the indoor set of embodiments of the present invention.
Fig. 6 is the cutaway view that represents the aluminium pipe arrangement of embodiments of the present invention and the connection status of copper pipe arrangement.
The explanation of Reference numeral
1 framework, 2 suction inlets, 2a filter, 3 blow-off outlets, 4 Wind direction regulating mechanisms, 5 pressure fans, 8 heating and dehumidification decompressors again, 10 indoor heat converters, 10a heat exchanger, 10b heat exchanger, 11 fins, 12 heat-transfer pipes (circular tube shaped), 15 fins, 16 heat-transfer pipes (flat tube), 20 connecting pipings, 29 horn mouth nut connecting portions, 30 gas pipe arrangements, 31 aluminium pipe arrangements, 32 bronze medal pipe arrangements, 33 portions that hang down, 34 upper curve portions, 35 line parts, 36 lower curve portions, 37 connecting portions, 39 horn mouth nut connecting portions, 40 liquid pipe arrangements, 41 aluminium pipe arrangements, 42 bronze medal pipe arrangements, 43 portions that hang down, 44 upper curve portions, 45 line parts, 46 lower curve portions, 47 connecting portions, 49 horn mouth nut connecting portions, 50 extend pipe arrangement, 51 horn mouth nut connecting portions, 60 springs, 100 indoor sets, 101 off-premises stations, 110 conditioned spaces, 111 walls, 112 hole portions.
The specific embodiment
In the following embodiments, the situation that heat exchanger of the present invention is mounted in to the indoor set of air conditioner is described.In addition, in the present invention, the example of the indoor set that has used on-wall type is described.
Embodiment
Fig. 1 is the key diagram that represents the state that arranges of the air conditioner of embodiments of the present invention.
As shown in Figure 1, the air conditioner of present embodiment has indoor set 100 and off-premises station 101.Indoor set 100 is arranged on the wall 111 of conditioned space 110.Off-premises station 101 is arranged on outdoor.
Indoor set 100 has framework 1, pressure fan 5 and indoor heat converter 10 etc.Framework 1 is for example the roughly box shape of cuboid, and top is formed with suction inlet 2, and bottom is formed with blow-off outlet 3.In addition, at suction inlet 2, be provided with the filter 2a for collect dust etc. from being inhaled into room air in framework 1.At blow-off outlet 3, be provided with the Wind direction regulating mechanism 4 of the direction for adjusting the Air Conditioning blowing out from blow-off outlet 3.
Pressure fan 5 is for example crossflow fan, is arranged in framework 1.In addition, to cover the front surface portion, upper surface portion of this pressure fan 5 and the mode of rear surface portion top configures indoor heat converter 10.
The indoor heat converter 10 of present embodiment is fin tube heat exchanger.In addition, in the present embodiment, by used circular tube shaped heat-transfer pipe 12 multiple heat exchanger 10a and used multiple heat exchanger 10b of heat-transfer pipe 16 of flat tubulose, form indoor heat converter 10.Multiple heat-transfer pipe 12(circular tube shapeds that heat exchanger 10a has the multiple fins 11 that formed by aluminum or aluminum alloy and formed by aluminum or aluminum alloy).It is folded that fin 11 separates predetermined distance ground storey, heat-transfer pipe 12(circular tube shaped) connect these fin 11 ground settings.The flat tubulose of multiple heat-transfer pipe 16(that heat exchanger 10b has the multiple fins 15 that formed by aluminum or aluminum alloy and formed by aluminum or aluminum alloy).It is folded that fin 15 separates predetermined distance ground storey, the flat tubulose of heat-transfer pipe 16() connect these fin 15 ground settings.
When pressure fan 5 is driven, the room air of conditioned space 110 is inhaled in framework 1 via suction inlet 2.This room air is heated or cooled when by indoor heat converter 10, becomes Air Conditioning.This Air Conditioning is blown from blow-off outlet 3.That is, the indoor heat converter 10 of present embodiment becomes following structure: used the heat exchanger 10a of the heat-transfer pipe 12 of circular tube shaped to be configured in the upstream side of wind path, used the heat exchanger 10b of the heat-transfer pipe 16 of flat tubulose to be configured in the downstream of wind path.In addition, indoor heat converter 10 becomes and can (for example be divided into two-part structure by hot method, between heat exchanger 10a and heat exchanger 10b), by hot method, be divided between two-part heat exchanger, be connected with again such as expansion valve of heating and dehumidification decompressor 8().Thus, for example, when cooling operation, a part for indoor heat converter 10 can be brought into play to function as condenser, a remaining part for indoor heat converter 10 is brought into play to function as evaporimeter.By like this hot method of indoor heat converter 10 use being divided into two parts, while dehumidifying when at cooling operation, can prevent the Air Conditioning blowing out from blow-off outlet 3 excessive temperature reduce.
This indoor heat converter 10 has connecting pipings 20.That is,, on the heat-transfer pipe (at least one party of heat-transfer pipe 12 and heat-transfer pipe 16) of indoor heat converter 10, be connected with an end of connecting pipings 20.This connecting pipings 20 is the pipe arrangements that formed by copper or copper alloy, via the hole portion 112 on wall 111 of being formed on by outdoor pull-out.On another end of connecting pipings 20, be provided with horn mouth nut connecting portion (flare-nut connection) 29.By the horn mouth nut connecting portion 51 to the prolongation pipe arrangement 50 being connected with off-premises station 101 and horn mouth nut connecting portion 29, connect, connect indoor set 100 and off-premises station 101.; by connecting horn mouth nut connecting portion 51 and horn mouth nut connecting portion 29; indoor heat converter 10 connects with the inscape (compressor and outdoor heat converter etc., all not shown) in the freeze cycle loop that is arranged at off-premises station 101, forms freeze cycle loop.
In addition, as described later, connecting pipings 20 consists of two pipe arrangements (gas pipe arrangement 30 and liquid pipe arrangement 40).Therefore, horn mouth nut connecting portion 29 also consists of two horn mouth nut connecting portions (the horn mouth nut connecting portion 39 of gas pipe arrangement 30 and the horn mouth nut connecting portion 49 of liquid pipe arrangement 40).Therefore, extend pipe arrangement 50 and also two pipe arrangements, consist of, the horn mouth nut connecting portion 51 that extends pipe arrangement 50 also consists of two horn mouth nut connecting portions.
Then, connecting pipings 20 is elaborated.
Fig. 2 is the stereogram that represents the heat exchanger of embodiments of the present invention.In addition, Fig. 3 is the front view (main position enlarged drawing) that represents this heat exchanger, and Fig. 4 is the side view that represents this heat exchanger.In addition, Fig. 2 (a) and Fig. 2 (b) are the figure separating for gas pipe arrangement 30 and liquid pipe arrangement 40 are described, all identical except Reference numeral.Below, use these Fig. 2～Fig. 4, describe the connecting pipings 20 of present embodiment in detail.
Connecting pipings 20 has gas pipe arrangement 30 and liquid pipe arrangement 40.
In the present embodiment, by the aluminium pipe arrangement 31 being formed by aluminum or aluminum alloy and the copper pipe arrangement 32 being formed by copper or copper alloy, form gas pipe arrangement 30.Equally, by the aluminium pipe arrangement 41 being formed by aluminum or aluminum alloy and the copper pipe arrangement 42 being formed by copper or copper alloy, form liquid pipe arrangement 40.It is the reasons are as follows.
Conventionally, at a side's who is connected pipe arrangement (for example connect the horn mouth nut connecting portion that extends pipe arrangement 50 and gas pipe arrangement 30 and liquid pipe arrangement 40, extend pipe arrangement 50) on internal thread part is set, for example, on the opposing party's who is connected pipe arrangement (, gas pipe arrangement 30 and liquid pipe arrangement 40) external thread part is set.Internal thread part forms internal thread at inner surface, and forms the through hole being communicated with the space that is formed with this internal thread.For example, and the end of a side's who is connected pipe arrangement (, extending pipe arrangement 50) is processed (flare working) by hole enlargement and is inserted this through hole by horn mouth.In addition, the opposing party's who is connected the upper external thread part arranging of pipe arrangement (for example, gas pipe arrangement 30 and liquid pipe arrangement 40) is arranged on pipe arrangement end by soldering.By screwing togather external thread part and internal thread part, the end by expanding of a side's who is connected pipe arrangement (for example, extending pipe arrangement 50) is clamped between internal thread part and external thread part, thereby connect, extends pipe arrangement 50 and gas pipe arrangement 30 and liquid pipe arrangement 40.Conventionally, external thread part and internal thread part consider processability and with braze ability of copper pipe arrangement etc., by brass, formed.
Now, for example, only forming gas pipe arrangement 30 by aluminium pipe arrangement 31, the horn mouth nut connecting portion 39 of gas pipe arrangement 30 is become in the situation of brazen external thread part, the braze ability of aluminium pipe arrangement 31 and horn mouth nut connecting portion 39 becomes difficulty.In addition, because aluminium pipe arrangement 31 and horn mouth nut connecting portion 39 are dissimilar metals, so can there is galvano-cautery (corroding between dissimilar metal) as described later at both connecting portions.And, for example, only by aluminium pipe arrangement 31, forming gas pipe arrangement 30, the horn mouth nut connecting portion 39 of gas pipe arrangement 30 is become in the situation of brazen internal thread part, because aluminium pipe arrangement 31 and horn mouth nut connecting portion 39 are dissimilar metals, so can there is galvano-cautery (corroding between dissimilar metal) as described later at both contact sites.
In addition, for example, only forming gas pipe arrangement 30 by aluminium pipe arrangement 31, the horn mouth nut connecting portion 39 of gas pipe arrangement 30 is become in the situation of the external thread part being formed by aluminum or aluminum alloy, the undercapacity of the ridge of horn mouth nut connecting portion 39.In addition, now, because the horn mouth nut connecting portion 51 of the prolongation pipe arrangement 50 as copper pipe arrangement becomes brazen internal thread part, so, between the horn mouth nut connecting portion 39 of gas pipe arrangement 30 and the horn mouth nut connecting portion 51 of prolongation pipe arrangement 50, can there is galvano-cautery (corroding between dissimilar metal) as described later.
In addition, for example, only by aluminium pipe arrangement 31, forming gas pipe arrangement 30, the horn mouth nut connecting portion 39 of gas pipe arrangement 30 becomes in the situation of the internal thread part being formed by aluminum or aluminum alloy, the undercapacity of the ridge of horn mouth nut connecting portion 39.In addition, when the leading section of aluminium pipe arrangement 31 is carried out to expanding, the leading section of aluminium pipe arrangement 31 may rupture.In addition, the horn mouth nut connecting portion 51 that extends pipe arrangement 50 due to copper pipe arrangement becomes brazen external thread part, so, between the horn mouth nut connecting portion 39 of gas pipe arrangement 30 and the horn mouth nut connecting portion 51 of prolongation pipe arrangement 50, can there is galvano-cautery (corroding between dissimilar metal) as described later.
In addition, for example, only by aluminium pipe arrangement 31, forming gas pipe arrangement 30, by aluminum or aluminum alloy, form the horn mouth nut connecting portion 39 of gas pipe arrangement 30 and extend in the situation of horn mouth nut connecting portion 51 of pipe arrangement 50 undercapacity of the ridge of horn mouth nut connecting portion 39 and horn mouth nut connecting portion 51.In addition, at the horn mouth nut connecting portion 39 that makes gas pipe arrangement 30, become internal thread part, when the leading section of aluminium pipe arrangement 31 is carried out to expanding, at the leading section of aluminium pipe arrangement 31, may rupture.In addition, for preventing, at the connecting portion that extends pipe arrangement 50 and horn mouth nut connecting portion 51, galvano-cautery (corroding between dissimilar metal) as described later occurs, need to form and extend pipe arrangement 50 by aluminum or aluminum alloy.Therefore, at the horn mouth nut connecting portion 51 that extends pipe arrangement 50, become internal thread part, when the leading section that extends pipe arrangement 50 is carried out to expanding, at the leading section that extends pipe arrangement 50, may rupture.
Therefore, in the present embodiment, by aluminium pipe arrangement 31 and copper pipe arrangement 32, form gas pipe arrangement 30.That is, at the leading section of copper pipe arrangement 32, be provided as the brazen horn mouth nut connecting portion 39 of external thread part or internal thread part, the fracture of contingent pipe arrangement leading section in the time of can preventing the undercapacity of ridge and expanding.Equally, by forming liquid pipe arrangement 40 by aluminium pipe arrangement 41 and copper pipe arrangement 42, at the leading section of copper pipe arrangement 42, be provided as the brazen horn mouth nut connecting portion 49 of external thread part or internal thread part, thus the fracture of contingent pipe arrangement leading section in the time of can preventing the undercapacity of ridge and expanding.
Here, in the present embodiment, the connecting portion 37 of aluminium pipe arrangement 31 and copper pipe arrangement 32 is connected by eutectic bonding.In addition, the end of a side contrary with connecting portion 37 of aluminium pipe arrangement 31 is for example connected with heat-transfer pipe 12 or heat-transfer pipe 16 by soldering.Equally, the connecting portion 47 of aluminium pipe arrangement 41 and copper pipe arrangement 42 is connected by eutectic bonding.In addition, the end of a side contrary with connecting portion 47 of aluminium pipe arrangement 41 is for example connected with heat-transfer pipe 12 or heat-transfer pipe 16 by soldering.
In more detail, the connecting portion 37,47 of aluminium pipe arrangement 31,41 and copper pipe arrangement 32,42 as shown in Figure 6.That is, the leading section of copper pipe arrangement 32,42 is inserted to the leading section of aluminium pipe arrangement 31,41.And, make both eutectic bondings (metal is contacted with each other and form the joint of eutectic alloy with certain temperature).In addition,, while being attached with water on connecting portion 37,47, by principle described later, connecting portion 37,47(are the part of aluminum or aluminum alloy in more detail) generation galvano-cautery (corroding between dissimilar metal).Therefore, for connecting portion 37,47 is carried out to waterproof, utilize heat-shrinkable tube to cover connecting portion 37,47, or connecting portion 37,47 is implemented to application.
In addition, in the present embodiment, for preventing that aluminium pipe arrangement 31,41 from galvano-cautery (corroding between dissimilar metal) occurring, and forms gas pipe arrangement 30 and liquid pipe arrangement 40 with following shape.
When comprising copper ion (Cu
2+) water while splashing on aluminum or aluminum alloy, aluminum or aluminum alloy, because of the difference of ionization tendency, becomes
2Al＋3Cu
2＋→2Al
3＋＋3Cu
That is, aluminium ion, aluminum or aluminum alloy generation galvano-cautery (corroding between dissimilar metal).
On the other hand, even if comprise aluminium ion (Al
3+) water droplet be attached on aluminum or aluminum alloy, owing to being each other identical atom, so galvano-cautery (corroding between dissimilar metal) can not occur aluminum or aluminum alloy.In addition, even if comprise aluminium ion (Al
3+) water droplet be attached on copper or copper alloy because copper is less than the ionization tendency of aluminium, so galvano-cautery (corroding between dissimilar metal) can not occur for copper or copper alloy.
Therefore, in the present embodiment, the portion 33 that hangs down is formed at gas pipe arrangement 30, and this portion 33 that hangs down is configured in gas pipe arrangement 30 in substantially vertical direction.The portion 33 that hangs down consists of upper curve portion 34, line part 35 and lower curve portion 36.In addition, the top of the portion 33 that hangs down becomes aluminium pipe arrangement 31, and the bottom of the portion 33 that hangs down becomes copper pipe arrangement 32.And the connecting portion 37 of aluminium pipe arrangement 31 and copper pipe arrangement 32 is configured in the line part 35 of the portion of hanging down 33.
Equally, the portion 43 that hangs down is formed at liquid pipe arrangement 40, and this portion 43 that hangs down is configured in liquid pipe arrangement 40 in substantially vertical direction.The portion 43 that hangs down consists of upper curve portion 44, line part 45 and lower curve portion 46.In addition, the top of the portion 43 that hangs down becomes aluminium pipe arrangement 41, and the bottom of the portion 43 that hangs down becomes copper pipe arrangement 42.And the connecting portion 47 of aluminium pipe arrangement 41 and copper pipe arrangement 42 is configured in the line part 45 of the portion of hanging down 43.
Like this, be formed with the portion of hanging down 33,43 on gas pipe arrangement 30 and liquid pipe arrangement 40, on the line part 35,45 of the portion 33,43 that hangs down, dispose connecting portion 37,47, thus, copper pipe arrangement 32,42 is configured in the below of gravity direction compared with aluminium pipe arrangement 31,41.Therefore, the water that can prevent from being attached on copper pipe arrangement 32,42 is attached to aluminium pipe arrangement 31,41, can prevent that aluminium pipe arrangement 31,41 from galvano-cautery (corroding between dissimilar metal) occurring.
In addition, in the present embodiment, the portion 33,43 that hangs down is configured in substantially vertical direction, but can certainly configure obliquely the portion of hanging down 33,43.That is, hang down the copper pipe arrangement 32,42 of portion 33,43 as long as be configured in the below of gravity direction compared with aluminium pipe arrangement 31,41.
In addition, in the present embodiment, when the installation of indoor set 100 or telephone-moving, when bending gas pipe arrangement 30, in order to prevent 30 fragmentations of gas pipe arrangement, from the lower curve portion 36 of the portion of hanging down 33 to line part 35, be coated with the spring 60 of for example spring steel.Therefore,, compared with the upper end of spring 60, the connecting portion 37 of aluminium pipe arrangement 31 and copper pipe arrangement 32 is configured in to top.Thus, because spring 60 does not contact with aluminium pipe arrangement 31, so the water that can prevent from being attached on spring 60 is attached to aluminium pipe arrangement 31, can prevent that aluminium pipe arrangement 31 from galvano-cautery (corroding between dissimilar metal) occurring.In addition, even if the water being attached on copper pipe arrangement 32 rises gradually via spring 60, also can prevent that this water is attached to aluminium pipe arrangement 31, can prevent that aluminium pipe arrangement 31 from galvano-cautery (corroding between dissimilar metal) occurring.
In addition, in the present embodiment, only at gas pipe arrangement 30, spring 60 is set.Gas pipe arrangement 30 pipe diameter compared with liquid pipe arrangement 40 is large, so, easy fragmentation compared with liquid pipe arrangement 40.And, in the present embodiment, connect
aluminium pipe arrangement 31 Hes
copper pipe arrangement 32, form gas pipe arrangement 30.In addition, connect
aluminium pipe arrangement 41 Hes
copper pipe arrangement 42, form liquid pipe arrangement 40.
Here, in the present embodiment, spring 60 is not arranged to liquid pipe arrangement 40, but the connecting portion 47(aluminium pipe arrangement 41 of liquid pipe arrangement 40 and the connecting portion of copper pipe arrangement 42) also can be configured in top compared with the upper end of spring 60.This is because the situation that liquid pipe arrangement 40 and gas pipe arrangement 30 closely arrange is more.By be configured in top compared with the upper end of the connecting portion of liquid pipe arrangement 40 47 and spring 60, thereby, because spring 60 does not contact with aluminium pipe arrangement 41, so the water that can prevent from being attached on spring 60 is attached to aluminium pipe arrangement 41, can prevent that aluminium pipe arrangement 41 from galvano-cautery (corroding between dissimilar metal) occurring.In addition, even if the water being attached on the copper pipe arrangement 32 of gas pipe arrangement 30 rises gradually by spring 60, also can prevent that this water is attached to the aluminium pipe arrangement 41 of liquid pipe arrangement 40, can prevent that aluminium pipe arrangement 41 from galvano-cautery (corroding between dissimilar metal) occurring.
In addition, in the present embodiment, when the installation of indoor set 100 or telephone-moving, for preventing gas pipe arrangement 30 and 40 breakages of liquid pipe arrangement, with following shape, form gas pipe arrangement 30 and liquid pipe arrangement 40.
As shown in Figure 1, when indoor set 100 is set, connecting pipings 20(gas pipe arrangement 30 and liquid pipe arrangement 40) via the hole portion 112 of wall 111, to outdoor, be drawn out.Now, the position of the hole portion 112 of wall 111 and the setting position of indoor set 100 are different because environment is set.Therefore, gas pipe arrangement 30 and liquid pipe arrangement 40 must as shown in Fig. 5 (top view), make the portion of hanging down 33,43 along axle in the scope of about 180 ° to direction distortion arbitrarily.
In the situation that gas pipe arrangement 30 and liquid pipe arrangement 40 make the portion of hanging down 33,43 along axle distortion, in the portion of hanging down 33,43, by the moment of torsion applying to them distortion that twists.By this torsional deflection, in the portion of hanging down 33,43, the refrigerant pressure loss that the leakage of the cold-producing medium that may occur to be caused by breakage and pipe arrangement fragmentation cause.
Therefore, in the present embodiment, as shown in Figure 2 (a) shows, at the line part 35 of the portion that hangs down 33 of gas pipe arrangement 30, make the length L 1 of aluminium pipe arrangement 31 longer than the length L of copper pipe arrangement 32 2.In addition, as shown in Fig. 2 (b), at the line part 45 of the portion that hangs down 43 of liquid pipe arrangement 40, make the length L 3 of aluminium pipe arrangement 41 longer than the length L of copper pipe arrangement 42 4.Thus, when the installation of indoor set 100 or telephone-moving, can prevent gas pipe arrangement 30 and 40 breakages of liquid pipe arrangement.
In more detail, aluminium pipe arrangement 31,41 is low with respect to the endurance of moment of torsion compared with copper pipe arrangement 32,42.Therefore, moment of torsion is applied to line part at 35,45 o'clock, and compared with copper pipe arrangement 32,42, aluminium pipe arrangement 31,41 is easily out of shape.Therefore,, by making to hold the ratio copper pipe arrangement more than 32,42 of yielding aluminium pipe arrangement 31,41, can reduce the windup-degree of the unit length of aluminium pipe arrangement 31,41.Thus, aluminium pipe arrangement 31,41 parts of line part 35,45 can flexibly be tackled with respect to the moment of torsion of giving.That is, in aluminium pipe arrangement 31,41 parts of line part 35,45, their breakage (fracture and fragmentation etc.) can be prevented, the leakage of cold-producing medium and the generation of refrigerant pressure loss can be prevented.
On the other hand, copper pipe arrangement 32,42 is high with respect to the endurance of moment of torsion compared with aluminium pipe arrangement 31,41, so the deflection of copper pipe arrangement 32,42 parts of line part 35,45 is few.Therefore,, in copper pipe arrangement 32,42 parts of line part 35,45, their breakage (fracture and fragmentation etc.) is few.
In addition, for example, at line part 35,45, in the case of length L 1, the L3 of aluminium pipe arrangement 31,41 is shorter than length L 2, the L4 of copper pipe arrangement 32,42, than copper pipe arrangement 32,42, holding yielding aluminium pipe arrangement 31,41, it is large that the windup-degree of unit length becomes.Therefore,, in aluminium pipe arrangement 31,41 parts of the portion of hanging down 33,43, may there is the leakage of the cold-producing medium that breakage causes and the refrigerant pressure loss that pipe arrangement fragmentation causes.
In addition, for the windup-degree of the unit length that makes aluminium pipe arrangement 31,41 diminishes, also consider to improve the relative intensity of aluminium pipe arrangement 31,41 with respect to copper pipe arrangement 32,42, but the method is preferred hardly.For example, in the case of thickening the wall thickness of aluminium pipe arrangement 31,41, the increase of the pressure loss in aluminium pipe arrangement 31,41 makes freeze cycle Efficiency Decreasing, or the cost of indoor heat converter 10 rises.On the contrary, in the case of making the wall thickness attenuation of copper pipe arrangement 32,42, withstand voltage and corrosion allowance deficiency.
Above, in the indoor heat converter 10 of present embodiment, at the line part 35 of the portion that hangs down 33 of gas pipe arrangement 30, make the length L 1 of aluminium pipe arrangement 31 longer than the length L of copper pipe arrangement 32 2.In addition, at the line part 45 of the portion that hangs down 43 of liquid pipe arrangement 40, make the length L 3 of aluminium pipe arrangement 41 longer than the length L of copper pipe arrangement 42 4.Therefore,, in the portion of hanging down 33,43, can reduce the windup-degree of the unit length of holding yielding aluminium pipe arrangement 31,41.Therefore, indoor set 100 installed or during telephone-moving, can be prevented connecting pipings 20(gas pipe arrangement 30 and liquid pipe arrangement 40) breakage.
Here, as the material of aluminium pipe arrangement 31,41, by select the material that ductility is good from aluminum or aluminum alloy, thereby can increase until the torsion angle of breakage can further prevent connecting pipings 20(gas pipe arrangement 30 and liquid pipe arrangement 40) breakage.Equally, as the material of copper pipe arrangement 32,42, by select the material that ductility is good from copper or copper alloy, can increase until the torsion angle of breakage can further prevent connecting pipings 20(gas pipe arrangement 30 and liquid pipe arrangement 40) breakage.And, in the present embodiment, as the material of aluminium pipe arrangement 31,41, select the good A3003-0 of ductility.In addition, as the material of copper pipe arrangement 32,42, use the good C1220-0 of ductility.According to JISH4000, A3003-0 has more than 23% rate elongation in the tabular test film of thickness 0.8mm～1.3mm.In addition, according to JISH3100, C1220-0 has more than 35% rate elongation in the tabular test film of thickness 0.3mm～30mm.
In addition, in the present embodiment, the example that heat exchanger of the present invention is mounted in to indoor set 100 is illustrated, but heat exchanger of the present invention can certainly be mounted in to outdoor heat converter.That is, in the present embodiment, the example that heat exchanger of the present invention is used as indoor heat converter 10 is illustrated, but heat exchanger of the present invention can certainly be used as outdoor heat converter.
In addition, in the present embodiment, for indoor heat converter 10, use heat-transfer pipe 16 both sides of heat-transfer pipe 12 and the flat tubulose of circular tube shaped, but also can only use the heat-transfer pipe of any one party.In addition, in the present embodiment, as an example of fin tube heat exchanger (indoor heat converter 10) example, the present invention has been described, but can certainly in various heat exchangers, have implemented the present invention.That is,, for the heat exchanger with the heat-transfer pipe being formed by aluminum or aluminum alloy, by connecting the gas pipe arrangement 30 and the liquid pipe arrangement 40 that illustrate in present embodiment, can implement the present invention.
Claims (4)
1. a heat exchanger, has the heat-transfer pipe being formed by aluminum or aluminum alloy and makes the cold-producing medium flowing into from described heat-transfer pipe or the connecting pipings passing through to the cold-producing medium of described heat-transfer pipe inflow, and described heat exchanger is equipped on air conditioner, it is characterized in that,
Described connecting pipings has the liquid pipe arrangement that gas pipe arrangement that gas refrigerant passes through and liquid refrigerant or gas-liquid two-phase cold-producing medium pass through,
Described gas pipe arrangement and described liquid pipe arrangement have respectively aluminium pipe arrangement and copper pipe arrangement, described aluminium pipe arrangement is formed by aluminum or aluminum alloy, and an end of described aluminium pipe arrangement is connected with described heat-transfer pipe, described copper pipe arrangement is formed by copper or copper alloy, and an end of described copper pipe arrangement is connected with another end of described aluminium pipe arrangement
On described gas pipe arrangement and described liquid pipe arrangement, be formed with respectively described copper pipe arrangement be configured in compared with described aluminium pipe arrangement gravity direction below the portion that hangs down,
Hang down described in the connecting portion of described aluminium pipe arrangement and described copper pipe arrangement the is disposed at straight line portion of portion,
At the straight line portion of the described portion that hangs down, described aluminium pipe arrangement is longer than described copper pipe arrangement.
2. heat exchanger as claimed in claim 1, is characterized in that,
Described gas pipe arrangement covers the spring of the distortion that suppresses described gas pipe arrangement in the bottom of the described portion that hangs down,
Under the state being set up at the air conditioner that is equipped with this heat exchanger,
Described connecting portion is configured in top than the upper end of described spring.
3. heat exchanger as claimed in claim 2, is characterized in that,
Under the state being set up at the air conditioner that is equipped with this heat exchanger,
The described connecting portion of described liquid line is configured in top than the upper end of the described spring that covers described flue.
4. an air conditioner, is characterized in that, has carried the heat exchanger described in any one in claim 1～3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010185948A JP5388969B2 (en) | 2010-08-23 | 2010-08-23 | Heat exchanger and air conditioner equipped with this heat exchanger |
| JP2010-185948 | 2010-08-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374592A CN102374592A (en) | 2012-03-14 |
| CN102374592B true CN102374592B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110241862.XA Active CN102374592B (en) | 2010-08-23 | 2011-08-23 | Heat exchanger and air conditioner on which this heat exchanger is mounted |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2423609B1 (en) |
| JP (1) | JP5388969B2 (en) |
| CN (1) | CN102374592B (en) |
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| JP6079619B2 (en) * | 2013-12-27 | 2017-02-15 | ダイキン工業株式会社 | Air conditioning indoor unit |
| JP5861723B2 (en) * | 2014-01-30 | 2016-02-16 | ダイキン工業株式会社 | Air conditioner indoor unit |
| JP6107724B2 (en) * | 2014-03-26 | 2017-04-05 | 株式会社富士通ゼネラル | Piping connection structure |
| CN105539803A (en) * | 2015-12-14 | 2016-05-04 | 浙江海洋学院 | Frostless air conditioner refrigeration device for ship by virtue of afterheat reproduction |
| CN107028432B (en) * | 2016-02-03 | 2021-06-15 | 开利公司 | Refrigeration showcase system |
| JP2017172885A (en) * | 2016-03-24 | 2017-09-28 | 株式会社富士通ゼネラル | Auxiliary connection pipe and air conditioner |
| JP2019007642A (en) * | 2017-06-21 | 2019-01-17 | 日立ジョンソンコントロールズ空調株式会社 | Refrigeration device |
| US11506425B2 (en) | 2017-12-18 | 2022-11-22 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| US11441802B2 (en) | 2017-12-18 | 2022-09-13 | Daikin Industries, Ltd. | Air conditioning apparatus |
| US11549695B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Heat exchange unit |
| WO2019123897A1 (en) * | 2017-12-18 | 2019-06-27 | ダイキン工業株式会社 | Refrigeration cycle device |
| BR112020010634A2 (en) | 2017-12-18 | 2020-11-10 | Daikin Industries, Ltd. | composition comprising refrigerant, use of the same, refrigeration machine having the same, and method for operating said refrigeration machine |
| US11493244B2 (en) | 2017-12-18 | 2022-11-08 | Daikin Industries, Ltd. | Air-conditioning unit |
| US11365335B2 (en) | 2017-12-18 | 2022-06-21 | Daikin Industries, Ltd. | Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine |
| US11906207B2 (en) | 2017-12-18 | 2024-02-20 | Daikin Industries, Ltd. | Refrigeration apparatus |
| US11435118B2 (en) | 2017-12-18 | 2022-09-06 | Daikin Industries, Ltd. | Heat source unit and refrigeration cycle apparatus |
| US11549041B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator |
| US11441819B2 (en) | 2017-12-18 | 2022-09-13 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| EP3730593A4 (en) | 2017-12-18 | 2021-10-27 | Daikin Industries, Ltd. | Refrigeration machine oil for refrigerant or refrigerant composition, method for using refrigeration machine oil, and use of refrigeration machine oil |
| US11820933B2 (en) | 2017-12-18 | 2023-11-21 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| CN110274304A (en) * | 2018-03-15 | 2019-09-24 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner with same |
| CN110260410A (en) * | 2019-07-15 | 2019-09-20 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner |
| JP6865809B2 (en) * | 2019-12-24 | 2021-04-28 | 三菱電機株式会社 | Air conditioner |
| JP7133076B1 (en) * | 2021-09-30 | 2022-09-07 | ダイキン工業株式会社 | Heat exchange units and air conditioners |
| JP7545059B2 (en) * | 2021-09-30 | 2024-09-04 | ダイキン工業株式会社 | Air conditioning indoor unit |
| JP7526903B1 (en) | 2024-03-14 | 2024-08-01 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioners |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2423609A2 (en) | 2012-02-29 |
| EP2423609B1 (en) | 2020-04-15 |
| JP2012042169A (en) | 2012-03-01 |
| JP5388969B2 (en) | 2014-01-15 |
| EP2423609A3 (en) | 2016-11-09 |
| CN102374592A (en) | 2012-03-14 |
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