WO2017175702A1 - 室内熱交換器 - Google Patents
室内熱交換器 Download PDFInfo
- Publication number
- WO2017175702A1 WO2017175702A1 PCT/JP2017/013908 JP2017013908W WO2017175702A1 WO 2017175702 A1 WO2017175702 A1 WO 2017175702A1 JP 2017013908 W JP2017013908 W JP 2017013908W WO 2017175702 A1 WO2017175702 A1 WO 2017175702A1
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- WIPO (PCT)
- Prior art keywords
- flat tube
- indoor
- heat exchanger
- heat transfer
- heat exchange
- Prior art date
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Classifications
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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
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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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
-
- 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
-
- 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
- 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
- F25B39/00—Evaporators; Condensers
-
- 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
- F28D1/0471—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 having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
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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
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
-
- 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
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
Definitions
- the present invention relates to an indoor heat exchanger, and more particularly to an indoor heat exchanger used for heat exchange between indoor air and a refrigerant.
- Patent Document 2 International Publication No. 13/160957 pamphlet
- Patent Document 2 describes a heat exchanger using a flat tube instead of a cylindrical heat transfer tube. Yes.
- the ventilation resistance is suppressed by using the flat tube.
- An object of the present invention is to provide an indoor heat exchanger in which an increase in ventilation resistance is suppressed and drainage of condensed water is easy.
- the indoor heat exchanger includes a plurality of first flat tubes arranged in a plurality of stages and a plurality of first heat transfer fins intersecting the first flat tubes, and flows in the width direction of the first flat tubes.
- a first heat exchange unit that exchanges heat between the indoor air and the refrigerant that flows in the first flat tube, and a plurality of second heat exchangers that intersect the second flat tube and the second flat tube arranged in a plurality of stages.
- a first heat transfer fin having a fin and a second heat exchanging part that exchanges heat between the indoor air flowing in the width direction of the second flat tube and the refrigerant flowing in the second flat tube
- the second heat transfer fin include a windward main portion where a notch into which the first flat tube and the second flat tube are inserted is formed, and a leeward communication portion located on the opposite side of the opening end of the notch.
- the first heat exchange part and the second heat exchange part have the first flat tube and the second flat tube in each stage installed in the width direction, and the windward side is the inner peripheral side. Leeward side is bent so that the outer peripheral side.
- the cutouts of the first heat transfer fin and the second heat transfer fin are arranged inside, and the first flat tube and the second flat tube are bent inward. Therefore, deformation of the main part of the first heat transfer fin and the main part of the second heat transfer fin is suppressed. Since the communicating portion of the first heat transfer fin and the second heat transfer fin is disposed on the leeward side, the condensed water carried by the indoor air flowing in the width direction of the first flat tube and the second flat tube is directed upward and downward. It can be made to flow through the communication part.
- the indoor heat exchanger according to the second aspect of the present invention is the indoor heat exchanger according to the first aspect, wherein the first heat exchange part and the second heat exchange part are bent so as to surround the indoor fan on the inner peripheral side, The indoor air blown out from the indoor fan disposed on the inner peripheral side is moved between the fins of the plurality of first heat transfer fins along the width direction of the first flat tube and the second flat tube. It arrange
- the indoor air blown out from the indoor fan surrounded by the inner peripheral sides of the first heat exchanging part and the second heat exchanging part is converted into the first flatness having a small ventilation resistance. It can be made to blow in the width direction of a pipe and the 2nd flat tube, and condensed water can be conveyed over the whole indoor heat exchanger from the inner circumference side to the outer circumference side of the 1st heat exchange part and the 2nd heat exchange part.
- the indoor heat exchanger according to the third aspect of the present invention is the indoor heat exchanger according to the first aspect or the second aspect, wherein the plurality of first flat tubes are 0 mm from the windward edge of the plurality of first heat transfer fins. As described above, they are arranged on the windward side.
- the first flat tube is located at the windward side of 0 mm or more from the windward edge of the plurality of first heat transfer fins, for example, the first heat exchange.
- the first flat tube protruding to the leeward side by 0 mm or more from the windward edge of the first heat transfer fin when the part and the second heat exchange part are bent hits the member etc. first, for example, the plurality of first heat transfer fins Upwind edge buckling is prevented.
- An indoor heat exchanger is the indoor heat exchanger according to the third aspect, wherein the plurality of first flat tubes and the plurality of second flat tubes are of the windward portion located on the windward side.
- the wall thickness of the tube wall is thicker than the wall thickness of the side wall portion located in the step direction of the first flat tube and the second flat tube.
- the wall thickness of the windward portion located on the windward side is thick, when bending the first flat tube and the second flat tube with a jig, Even if the jig is damaged, it is possible to suppress a decrease in the pressure strength.
- An indoor heat exchanger is the indoor heat exchanger according to any one of the first to fourth aspects, wherein the first heat exchange unit is a plurality of first heat transfer units of the first heat exchange unit.
- a gap is formed between the leeward edge of the fin and the main part on the windward side of the second heat transfer fin of the second heat exchanging part so as not to contact the second heat exchanging part.
- the indoor heat exchanger which concerns on the 5th viewpoint of this invention, it is comprised so that a 1st heat exchange part and a 2nd heat exchange part may not contact, and the 1st heat exchange part and 2nd with a temperature difference are comprised. It is possible to suppress heat conduction from one of the heat exchange units to the other.
- the indoor heat exchanger according to a sixth aspect of the present invention is the indoor heat exchanger according to the fifth aspect, wherein the second flat tube is located at an upstream of 0 mm or more from the windward edge of the plurality of second heat transfer fins. Are arranged.
- the second flat tube is located on the windward side by 0 mm or more from the windward edge of the plurality of second heat transfer fins, It becomes easy to maintain the clearance gap between 2nd heat exchange parts.
- the indoor heat exchanger according to a seventh aspect of the present invention is the indoor heat exchanger according to the sixth aspect, wherein the second flat tube is located 2 mm or less above the windward edge of the plurality of second heat transfer fins. It is what is arranged.
- the second flat tube is positioned on the windward side by 2 mm or less from the windward edge of the plurality of second heat transfer fins. Condensed water is attracted by the surface tension in a gap of 2 mm or less formed between the second heat exchange part and the second heat exchange part, so that it easily flows down.
- An indoor heat exchanger is the indoor heat exchanger according to any one of the fifth to seventh aspects, wherein the first heat exchanging section has gaps between the leeward edges of the plurality of first heat transfer fins. It extends in the vertical direction along a straight line.
- the leeward edges of the plurality of first heat transfer fins extend linearly along the gap in the vertical direction, so that the condensed water can be easily guided along the leeward edge.
- An indoor heat exchanger is the indoor heat exchanger according to any one of the fifth to eighth aspects, wherein the first heat exchange part and the second heat exchange part are the first flat tube and the first heat exchange part. 2 It is bent into an L shape, a C shape or a square shape when viewed from the step direction of the flat tube.
- the first heat exchange section and the second heat exchange section are bent into an L shape, a C shape, or a square shape.
- One pair or two pairs of the part and the second heat exchange part can surround the space on the windward side.
- an increase in ventilation resistance is suppressed, and drainage at the time of dew condensation is improved by the communication part on the leeward side.
- the indoor heat exchanger According to the second aspect of the present invention, it is possible to improve the drainage of the condensed water by efficiently utilizing the air flow blown around by the indoor fan.
- the indoor heat exchanger according to the third aspect of the present invention, it is possible to suppress an increase in ventilation resistance due to deformation of the windward edges of the plurality of first heat transfer fins.
- the drainage performance of condensed water is improved.
- the indoor heat exchanger according to the eighth aspect of the present invention it is possible to suppress the occurrence of problems due to condensed water, such as scattering of condensed water.
- the configuration of the apparatus to which the indoor heat exchanger is applied can be simplified.
- the perspective view which shows the external appearance of the indoor unit which concerns on embodiment.
- Sectional drawing of the indoor unit of FIG. The typical top view of an indoor heat exchanger.
- Sectional drawing which shows the indoor heat exchanger of the place of the II line
- the partial expanded sectional view which shows an example of the relationship between a 1st flat tube, a 2nd flat tube, and a notch.
- the schematic diagram which shows an example of the manufacturing process of an indoor heat exchanger.
- the schematic diagram which shows an example of the other manufacturing process of an indoor heat exchanger.
- Sectional drawing which shows typically the relationship between the component of an indoor heat exchanger, and a jig
- FIG. 1 shows an appearance of an indoor unit to which an indoor heat exchanger according to an embodiment of the present invention is applied
- FIG. 2 shows the indoor unit of FIG.
- the indoor unit 100 is a ceiling-mounted indoor unit that is used for cooling and heating a room in a building such as a building by performing a vapor compression refrigeration cycle operation.
- the indoor unit 100 is embedded in a ceiling CE of a room such as a building.
- the indoor unit 100 includes an indoor fan 120 and an indoor heat exchanger 10.
- the indoor fan 120 is driven, the indoor unit 100 sucks indoor air from the suction port 101 in the lower center of the indoor unit 100 and blows out air from the four outlets 102 of the indoor unit 100.
- the four outlets 102 of the indoor unit 100 extend in parallel to the four sides of the decorative plate 103 having a substantially square bottom surface.
- a bell mouth 104 is attached immediately above the suction port 101.
- the indoor air sucked from the suction port 101 is guided to the indoor fan 120 by the bell mouth 104.
- room air is blown out substantially parallel to the ceiling CE.
- the indoor air that passes through the indoor heat exchanger 10 that surrounds the indoor fan 120 in the horizontal direction and is blown out from the indoor fan 120 is blown out from the four outlets 102 on the outer periphery of the indoor heat exchanger 10.
- condensation may occur when the temperature of the indoor heat exchanger 10 is lower than the indoor temperature during cooling operation.
- a drain pan 130 is provided below the indoor heat exchanger 10 in order to receive condensed water generated by condensation in the indoor heat exchanger 10.
- the condensed water generated in the indoor heat exchanger 10 is attracted by gravity, flows downward through the indoor heat exchanger 10, and falls from the indoor heat exchanger 10 to the drain pan 130.
- FIG. 3 The state which looked at the indoor heat exchanger 10 from the top is shown by FIG. As illustrated in FIG. 3, the indoor heat exchanger 10 surrounds the indoor fan 120.
- the arrows Ar1, Ar2, Ar3, Ar4 in FIG. 3 indicate the direction of air flow. Further, four outlets 102 are formed in the direction of these arrows Ar1 to Ar4.
- the indoor heat exchanger 10 has a shape along each side of a square having a center of a diagonal line at the center of the indoor fan 120 as viewed from above. However, the location corresponding to the location where the drain pump 140 is formed is recessed on the inner peripheral side.
- the indoor heat exchanger 10 is, for example, a part of a refrigerant circuit (not shown) that performs a refrigeration cycle and performs heat exchange between refrigerant flowing through the refrigerant circuit and room air.
- a liquid pipe 51 and a gas pipe 52 extending from the indoor heat exchanger 10 are connected to the refrigerant circuit.
- a liquid refrigerant mainly flows through the liquid pipe 51 extending from the indoor heat exchanger 10, and a gas refrigerant mainly flows through the gas pipe 52.
- FIG. 4 shows an enlarged cross-sectional structure of a part of the indoor unit 100 cut at a location corresponding to the location of line II in FIG.
- the indoor heat exchanger 10 includes a first heat exchange unit 11 on the inner peripheral side and a second heat exchange unit 12 on the outer peripheral side.
- the first heat exchange unit 11 is disposed on the leeward side
- the second heat exchange unit 12 is disposed on the leeward side.
- the first heat exchange unit 11 includes a plurality of first flat tubes 21 arranged in a plurality of stages and a plurality of first heat transfer fins 31 intersecting with the plurality of first flat tubes 21.
- the first flat tube 21 and the first heat transfer fin 31 are substantially orthogonal to each other. Although the number of the first heat transfer fins 31 shown in FIG. 4 is only one, the other first heat transfer fins 31 adjacent to the first heat transfer fins 31 shown in FIG. The first heat transfer fins 31 are arranged in parallel. However, the first heat transfer fins 31 adjacent to each other at the bent portion 10R of the indoor heat exchanger 10 are not parallel to each other, and the outer periphery is larger than the interval on the inner peripheral side of the first heat transfer fins 31 adjacent to each other. The side spacing is widened. In one first flat tube 21, a plurality of flow paths 21a are formed in a line from the windward side to the leeward side, and the refrigerant flows through each flow path 21a.
- the second heat exchanging unit 12 includes a plurality of second flat tubes 22 arranged in a plurality of stages and a plurality of second heat transfer fins 32 intersecting with the plurality of second flat tubes 22.
- the second flat tube 22 and the second heat transfer fin 32 are substantially orthogonal to each other.
- the number of the second heat transfer fins 32 shown in FIG. 4 is only one, the other second heat transfer fins 32 adjacent to the second heat transfer fins 32 shown in FIG.
- the second heat transfer fins 32 are arranged in parallel.
- the second heat transfer fins 32 adjacent to each other at the bent portion 10 ⁇ / b> R of the indoor heat exchanger 10 are not parallel to each other, and the outer periphery is larger than the interval on the inner peripheral side of the adjacent second heat transfer fins 32.
- the side spacing is widened.
- a plurality of flow paths 22a are formed in a line from the windward side to the leeward side, and the refrigerant flows through each flow path 22a.
- FIG. 5 schematically shows an example of the flow direction of the refrigerant flowing through the indoor heat exchanger 10.
- the indoor heat exchanger 10 includes a flow divider 53 connected to the liquid pipe 51, a liquid header 54 connected to the flow divider 53, a gas header 55 connected to the gas pipe 52, and a turn-up header 56. .
- the indoor heat exchanger 10 shown in FIGS. 3 and 5 is configured by using two sets of first heat exchange units 11 and second heat exchange units 12.
- the one arranged near the drain pump 140 is called the first heat exchange unit 11 and the second heat exchange unit 12 or the first pair P1 of the first pair P1, and the remaining one is the first heat of the second pair P2. It is called the exchange unit 11 and the second heat exchange unit 12 or the second pair P2.
- FIG. 5 shows the flow of the refrigerant when the indoor heat exchanger 10 functions as an evaporator by arrows Ar5 to Ar8.
- the liquid refrigerant that has flowed from the liquid pipe 51 into the first flat tube 21 via the flow divider 53 and the liquid header 54 flows in the direction of the arrow Ar5.
- the refrigerant flowing through the first flat pipe 21 of the first pair P1 enters the second flat pipe 22 from the first flat pipe 21 at the turn-back header 56, flows in the direction of the arrow Ar6, and passes through the gas header 55 to the gas pipe. It flows to 52.
- the liquid refrigerant that has flowed from the liquid pipe 51 into the first flat tube 21 via the flow divider 53 and the liquid header 54 flows in the direction of the arrow Ar7.
- the refrigerant flowing through the first flat tube 21 of the second pair P2 enters the second flat tube 22 from the first flat tube 21 at the turn-up header 56, flows in the direction of the arrow Ar8, and passes through the gas header 55 to the gas pipe. It flows to 52.
- the indoor heat exchanger 10 shown in FIG. 5 the liquid refrigerant evaporates while flowing through the first flat tube 21 and the second flat tube 22 and changes to a gas refrigerant.
- the first heat exchange unit 11 and the second heat exchange unit 12 are combined. Note that the first pair P1 has two bent portions 10R, and the second pair P2 has only one bent portion 10R, but both shapes are classified as L-shaped.
- the first pair P1 and the second pair P2 are bent in an L shape so that the first heat exchange unit 11 and the second heat exchange unit 12 surround the indoor fan 120 on the inner peripheral side. To be able to do that.
- the indoor air blown from the indoor fan 120 arranged on the inner peripheral side is passed through the first flat tube 21 and the second flat tube 22 along the width direction. It arrange
- FIG. 6 shows the first heat transfer fin 31 of the first heat exchange section 11 shown in FIG. 4 and a part of the first flat tube 21 fitted therein. It is shown further enlarged. Note that the structure of the first heat exchange unit 11 shown enlarged in FIG. 6 is also common to the second heat exchange unit 12, and therefore, the first heat exchange unit 11 will be described here and the second heat exchange unit 11 will be described. The description of the same configuration as the first heat exchange unit 11 in the exchange unit 12 is omitted.
- the first heat transfer fin 31 includes a windward main part 33 in which a notch 35 into which the first flat tube 21 is inserted is formed, and a leeward communication part 34 located on the opposite side of the opening end 35 a of the notch 35.
- the first flat tube 21 is inserted in the direction of the arrow Ar9 in FIG.
- the second heat transfer fin 32 is connected to the leeward side main portion 33 in which the notch 35 into which the second flat tube 22 is inserted and the leeward side communication located on the opposite side of the opening end 35a of the notch 35.
- Part 34 is provided.
- the communication portion 34 is formed with water guiding ribs 36 that help drain the condensed water.
- the water guide ribs 36 are portions extending from the pressed grooves.
- the convex structure When the water guide ribs 36 are viewed from the one main surface f1 of the first heat transfer fins 31 (or the second heat transfer fins 32), the convex structure has the water guide ribs 36. When viewed from the other main surface on the opposite side of the one main surface f1, the concave structure extends vertically along the water guiding rib 36.
- a plurality of cut-and-raised portions 37 protruding in a bridge shape are formed on the one main surface f1 side of the first heat transfer fin 31 (or the second heat transfer fin 32). As can be seen from FIG. 6, the cut-and-raised portion 37 is not formed around the notch 35.
- the pressing jig 220 is pressed against the component 300 from the side opposite to the roll portion 211 of the roll jig 210. Further, the pressing jig 220 presses the portion closer to the other end 302 of the component 300 than the roll portion 211.
- the first flat tube 21 and the second flat tube 22 of the component 300 are bent by applying a force from the pressing jig 220 to the component 300 of the indoor heat exchanger 10.
- the radius of curvature of the second flat tube 22 is larger than the radius of curvature of the first flat tube 21. Accordingly, when the bending process is completed, the end of the first flat tube 21 and the end of the second flat tube 22 at the other end 302 of the component 300 are shown in FIG.
- the end of the second flat tube 22 is designed to protrude beyond the end of the first flat tube 21 before the component 300 is bent.
- FIG. 9 shows an enlarged view of the part 300 where the roll jig 210 and the pressing jig 220 are pressed.
- the first flat tube 21 mainly contacts the roll jig 210.
- a plate is inserted between the first heat exchange unit 11 and the second heat exchange unit 12 during the bending process when completed.
- the second flat tube 22 transmits the force from the second flat tube 22 to the first heat transfer fins 31 through the plate.
- the area where the pressing jig 220 contacts the second heat transfer fin 32 also has a wide area.
- the pressure received by the second heat transfer fin 32 from the pressing jig 220 and the pressure received by the first heat transfer fin 31 from the plate are smaller than the pressure received by the first flat tube 21 from the roll jig 210.
- buckling of the leeward edge 31b of the first heat transfer fin 31 and the leeward edge 32b (see FIG. 11) of the second heat transfer fin 32 during bending is prevented.
- the plurality of first flat tubes 21 are 0 mm from the windward edges 31 a of the plurality of first heat transfer fins 31. As described above, they are arranged on the windward side. That is, the distance D1 between the windward end of the first flat tube 21 and the windward edge 31a of the first heat transfer fin 31 shown in FIG. 6 is 0 mm or more, and there is a manufacturing error, for example. Considering this, the distance D1 is preferably set to 0.5 mm or more. As already described, in order to reduce the force applied to the first heat transfer fins 31 during bending, it is preferable that the first flat tube 21 protrudes.
- the wall thickness of the tube wall of the 1st flat tube 21 and the 2nd flat tube 22 is set in consideration of the force which these apply. Specifically, as shown in FIG. 10, the first flat tube 21 and the second flat tube 22 have the wall thickness t3 of the tube walls 21d and 22d in the windward portion located on the windward side. It is thicker than the wall thickness t ⁇ b> 2 of the tube walls 21 c and 22 c at the side portions located in the step direction of the flat tube 21 and the second flat tube 22.
- the wall thickness t3 of the tube walls 21d and 22d in the windward portion located on the windward side than the wall thickness t1 of the inner walls 21b and 22b that divide the flow paths of the first flat tube 21 and the second flat tube 22 with multiple holes. Is thicker.
- FIG. 11 shows a part of the first heat exchange unit 11 and the second heat exchange unit 12 in an enlarged manner.
- the first heat exchanging portion 11 has a gap CL formed between the leeward edge 31b of the first heat transfer fin 31 and the main portion 33 on the upwind side of the second heat transfer fin 32 of the second heat exchange portion 12. 2. It is comprised so that it may not contact with the heat exchange part 12.
- the distance D3 between the leeward edge 31b of the first heat transfer fin 31 and the windward edge 32a of the second heat transfer fin 32 is preferably ensured by 2 mm or less.
- the plurality of second flat tubes 22 are arranged on the windward side by 0 mm or more from the windward edge 32 a of the plurality of second heat transfer fins 32. That is, the distance D2 between the windward end of the second flat tube 22 and the windward edge 32a of the second heat transfer fin 32 shown in FIG. 6 is 0 mm or more, and the condensed water has surface tension. Is preferably set to 2 mm or less in order to make it easy to flow down. This 2 mm takes into account the size of the water droplets. If this is 2 mm or more, the water droplets are hardly attracted by surface tension (capillary phenomenon).
- the second flat tubes 22 are projected (the second flat tubes 22 are windward of the second heat transfer fins 32). It is preferable that the edge 32a protrudes more than 0 mm and is located on the windward side.
- the indoor heat exchanger 10 combines the first pair P1 and the second pair bent in an L shape when viewed from the step direction of the first flat tube 21 and the second flat tube 22,
- the case where it is configured to surround the entire circumference of the windward space where the fan 120 is arranged has been described as an example.
- the shape of the indoor heat exchanger 10 for enclosing the windward space where the indoor fan 120 is disposed is, for example, as shown in FIG. 12 or FIG. 12 when viewed from the step direction of the first flat tube 21 and the second flat tube 22. It may be a square shape as shown in FIG.
- FIG. 12 shows the flow of the refrigerant when the square indoor heat exchanger 10 functions as an evaporator by arrows Ar11 and Ar12.
- the refrigerant flowing through the first flat tube 21 enters the second flat tube 22 from the first flat tube 21 at the folding header 56, flows in the direction of the arrow Ar 12, and flows to the gas pipe 52 via the gas header 55.
- FIG. 13 shows the flow of the refrigerant when the square indoor heat exchanger 10 functions as an evaporator.
- the refrigerant flows in the first flat tube 21 of the first heat exchange unit 11 with arrows Ar12 and Ar14 and second heat exchange.
- the second flat tube 22 of the portion 12 is indicated by arrows Ar13 and Ar15.
- the liquid refrigerant flowing from the liquid pipe 51 into the first flat tube 21 via the flow divider 53 and the liquid header 54 is indicated by the arrows Ar12. It flows in the direction of Ar13.
- the refrigerant flowing through the first flat tube 21 flows in the directions of arrows Ar14 and Ar15, and flows to the gas pipe 52 via the gas header 55.
- FIG. 14 shows the internal structure of the indoor unit 100 as viewed from below
- FIG. 15 shows a cross-sectional structure taken along line II-II in FIG.
- the indoor unit 100 includes an indoor fan 120 and an indoor heat exchanger 10.
- the C-shaped indoor heat exchanger 10 is a portion indicated by hatching.
- the indoor fan 120 When the indoor fan 120 is driven, the indoor unit 100 sucks room air from the suction port 101 in the lower center of the indoor unit 100 and blows air from the outlet 102 of the indoor unit 100.
- a bell mouth 104 is attached immediately above the suction port 101.
- the indoor air sucked from the suction port 101 is guided to the indoor fan 120 by the bell mouth 104.
- the indoor fan 120 substantially blows out indoor air in the horizontal direction.
- the indoor air which passed the indoor heat exchanger 10 which encloses the indoor fan 120 in a C shape in a horizontal direction, and was blown off from the indoor fan 120 is blown off from the blower outlet 102.
- condensation may occur when the temperature of the indoor heat exchanger 10 is lower than the indoor temperature during cooling operation.
- a drain pan 130 is provided below the indoor heat exchanger 10 in order to receive condensed water generated in the indoor heat exchanger 10.
- the condensed water generated in the indoor heat exchanger 10 is attracted by gravity, flows downward through the indoor heat exchanger 10, and falls from the indoor heat exchanger 10 to the drain pan 130.
- the refrigerant flowing through the first flat tube 21 and the second flat tube 22 of the above embodiment may be other than a vapor compressor type refrigerant, for example, water.
- the heat exchange unit has two rows of the first heat exchange unit 11 and the second heat exchange unit 12, but the present invention can also be applied to an indoor heat exchanger having three or more rows.
- the indoor heat exchanger according to the present invention can be applied not only to the ceiling-embedded indoor unit 100 but also to, for example, a ceiling-suspended indoor unit.
- the notches 35 of the first heat transfer fins 31 and the second heat transfer fins 32 are arranged on the inner side, and the first flat tube 21 and the second flat tube 22 are bent inward. Deformation of the main portion 33 of the first heat transfer fin 31 and the main portion 33 of the second heat transfer fin 32 is suppressed. The deformation of the main portion 33 of the first heat transfer fin 31 and the main portion 33 of the second heat transfer fin 32 is suppressed, and the ventilation resistance is not increased by the deformation, and the increase of the ventilation resistance is suppressed.
- the communication part 34 of the 1st heat transfer fin 31 and the 2nd heat transfer fin 32 is arrange
- the condensed water can be made to flow in the up and down direction through the communicating portion 34, particularly the water guiding rib 36.
- the drainage property at the time of dew condensation improves by the communicating part 34 of the 1st flat tube 21 and the 2nd flat tube 22 in the leeward side.
- the indoor heat exchanger 10 has the first pair P ⁇ b> 1 and the second pair P ⁇ b> 2 bent into an L shape so that the indoor fan 120 can be enclosed on the inner peripheral side.
- the indoor heat exchanger 10 shown by FIG.12 and FIG.13 is bent by the square shape so that the indoor fan 120 can be enclosed on the inner peripheral side.
- the indoor heat exchanger 10 shown in FIG. 14 is bent in a C shape so that the indoor fan 120 can be enclosed on the inner peripheral side.
- drainage of the condensed water is improved by efficiently utilizing the air flow blown out by the indoor fan 120.
- the first flat tubes 21 are positioned at the windward side of 0 mm or more from the windward edges 31 a of the plurality of first heat transfer fins 31, for example, the first heat exchange unit 11 and When the second heat exchanging portion 12 is bent, the first flat tube 21 protruding to the leeward side by 0 mm or more from the windward edge 31a of the first heat transfer fin 31 hits a member such as the roll jig 210 first, The buckling of the windward edge 31a of the first heat transfer fin 31 is prevented. As a result, an increase in ventilation resistance due to deformation of the windward edges 31a of the plurality of first heat transfer fins 31 can be suppressed.
- a gap CL is formed between the leeward edge 31b of the first heat transfer fin 31 and the windward main portion 33 of the second heat transfer fin 32 shown in FIG.
- the second flat tubes 22 are positioned at the windward side of 0 mm or more from the windward edges 32 a of the plurality of second heat transfer fins 32, so that the first heat exchange unit 11 and the second heat exchange unit 11 It becomes easy to maintain the clearance CL between the heat exchange parts 12.
- the clearance CL maintained by this arrangement of the second flat tubes 22 makes it easy to prevent the performance of heat exchange between the first heat exchange unit 11 and the second heat exchange unit 12 from being deteriorated.
- the second flat tube 22 is located 2 mm or less above the windward edge of the plurality of second heat transfer fins, so that the first heat exchange unit 11 and the second heat A gap CL of 2 mm or less can be reliably formed between the exchange parts 12. That is, the distance D3 between the leeward edge 31b of the first heat transfer fin 31 and the windward edge 32a of the second heat transfer fin 32 is 2 mm or less. Condensed water is attracted by the surface tension in a gap of 2 mm or less formed between the first heat exchange unit 11 and the second heat exchange unit 12 and easily flows down. As a result, the drainage performance of the condensed water in the indoor heat exchanger 10 is improved.
- the leeward edges 31b of the plurality of first heat transfer fins 31 extend linearly along the gap CL in the vertical direction, so that the condensed water can be easily guided along the leeward edge 31b. As a result, it is possible to suppress the occurrence of problems due to condensed water, such as scattering of condensed water.
- the first heat exchanging part 11 and the second heat exchanging part 12 are two sets of L-shaped first pair P1 and second pair P2, and the square type 1 shown in FIGS.
- the windward space in the first heat exchange section 11 and the second heat exchange section 12 in the set or in the one set of the first heat exchange section and the second heat exchange section in the C shape shown in FIG. Can be enclosed.
- the configuration of the indoor unit 100 to which the indoor heat exchanger 10 is applied can be simplified.
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Abstract
Description
図1には、本発明の一実施形態に係る室内熱交換器が適用される室内機の外観が示され、図2には、図1の室内機の内部構造が示されている。室内機100は、蒸気圧縮式の冷凍サイクル運転を行うことによって例えばビル等の建物の室内の冷暖房に使用される天井設置型の室内ユニットである。室内機100は、図2に示されているように、例えばビル等の建物の室内の天井CEに埋め込まれる。室内機100は、室内ファン120と室内熱交換器10とを備えている。室内機100は、室内ファン120が駆動することにより、室内機100の下部中央にある吸込口101から室内空気を吸込み、室内機100の4つの吹出口102から空気を吹出す。室内機100の4つの吹出口102は、実質的に正方形の形状をした下面を持つ化粧板103の4辺にそれぞれ平行に延びている。
図3には、室内熱交換器10を上から見た状態が示されている。室内熱交換器10は、図3に示されているように、室内ファン120の周囲を取り囲んでいる。図3の矢印Ar1、Ar2,Ar3,Ar4は、空気の流れの方向を示している。また、これら矢印Ar1~Ar4の向く方向に4つの吹出口102が形成されている。室内熱交換器10は、上から見て、室内ファン120の中心に対角線の中心を持つ正方形の各辺に沿った形状をしている。ただし、ドレンポンプ140が形成されている場所に対応する箇所が内周側に凹んでいる。
図3のI-I線の箇所に対応する場所で切断した室内機100の一部の断面構造が拡大して図4に示されている。図4に示されているように、室内熱交換器10は、内周側の第1熱交換部11と外周側の第2熱交換部12を備えている。言い換えると、第1熱交換部11は、風上側に配置され、第2熱交換部12は、風下側に配置されている。第1熱交換部11は、複数段並んだ第1扁平管21と、複数の第1扁平管21と交差する複数の第1伝熱フィン31とを有している。第1扁平管21と第1伝熱フィン31とは実質的に直交する。図4に示されている第1伝熱フィン31は、1枚だけであるが、図4に示されている第1伝熱フィン31と隣接する他の第1伝熱フィン31は、図4の第1伝熱フィン31と平行に配置される。ただし、室内熱交換器10の曲がっている箇所10Rで、互いに隣接する第1伝熱フィン31は、互いに平行にならず、互いに隣接する第1伝熱フィン31の内周側の間隔よりも外周側の間隔が広がっている。1つの第1扁平管21の中には、複数の流路21aが風上から風下にかけて一列に並べて形成されており、各流路21aの中を冷媒が流れる。
図6には、図4に示した第1熱交換部11の第1伝熱フィン31及びそれに嵌め込まれる第1扁平管21の一部がさらに拡大して示されている。なお、図6に拡大して示された第1熱交換部11の構造は、第2熱交換部12にも共通するので、ここでは、第1熱交換部11について説明して、第2熱交換部12のうちの第1熱交換部11と同様の構成については説明を省略する。
(3-1)曲げ加工の概要
図7、図8及び図9を用いて、図3に示されている室内熱交換器10の曲がっている箇所10Rの形成方法について説明する。曲がっている箇所10Rを形成するには、例えば図7及び図8に示されている2つの治具を用いる。すなわち、ロール治具210と押付治具220を用いて、室内熱交換器10の曲がっている箇所10Rが形成される。図7に示されているように、ロール治具210を、曲がっている箇所10Rを形成すべき場所に当てて室内熱交換器10の部品300の一端301の側に固定する。そして、ロール治具210のロール部分211とは反対側から部品300に押付治具220を押し付ける。また、押付治具220は、ロール部分211よりも部品300の他端302に近い場所に押し付ける。
図6に示されているように、複数の第1扁平管21は、複数の第1伝熱フィン31の風上縁31aよりも0mm以上風上側に位置して配置されている。つまり、図6に示されている、第1扁平管21の風上側の端部と第1伝熱フィン31の風上縁31aとの距離D1が0mm以上ということであり、例えば製造誤差があることを考慮すれば距離D1が0.5mm以上に設定されることが好ましい。既に説明したように、曲げ加工の際に、第1伝熱フィン31に加わる力を小さくするためには、第1扁平管21が突出していることが好ましい。
(4-1)変形例1A
上記実施形態では、室内熱交換器10が、第1扁平管21及び第2扁平管22の段方向から見て、L字型に曲げられた第1ペアP1と第2ペアを組み合わせて、室内ファン120が配置されている風上の空間の全周を囲うように構成される場合を例に挙げて説明した。しかし、室内ファン120が配置されている風上の空間を囲うための室内熱交換器10の形状は、例えば、第1扁平管21及び第2扁平管22の段方向から見て、図12又は図13に示されているような四角型であってもよい。
(4-2)変形例1B
上記実施形態では、室内熱交換器10が、室内ファン120の全周を囲う場合について説明したが、室内ファンの周囲の一部が囲まれていないような構成であってもよい。第1扁平管21及び第2扁平管22の段方向から見て、例えば、図14及び図15に示されているようなC字型であってもよい。
上記実施形態の第1扁平管21や第2扁平管22に流れる冷媒は、蒸気圧縮機式の冷媒以外でもよく、例えば水などでもよい。
本実施形態の室内熱交換器10では熱交換部が第1熱交換部11と第2熱交換部12の2列だが、3列以上の室内熱交換器についても適用できる。
本発明に係る室内熱交換器が適用できるのは天井埋め込み型の室内機100に限られるものではなく、例えば天井吊下げ型室内機についても適用できる。
上記実施形態では、第1扁平管21と第2扁平管22とが同じ高さに並べて配置されているが、本発明に係る室内熱交換器の第1扁平管及び第2扁平管の配置は千鳥配置であってもよい。
(5-1)
以上説明したように、第1伝熱フィン31及び第2伝熱フィン32の切り欠き35が内側に配置され、第1扁平管21及び第2扁平管22が内側に曲がっていることから、第1伝熱フィン31の主部33及び第2伝熱フィン32の主部33の変形が抑制される。第1伝熱フィン31の主部33及び第2伝熱フィン32の主部33の変形が抑制されて、変形により通風抵抗が増加することがなくなり、通風抵抗の増加が抑制される。
上記実施形態では、室内熱交換器10は、図5に示されているように、内周側に室内ファン120を囲い込み可能に第1ペアP1及び第2ペアP2がL字型に曲げられている。また、変形例1Aでは、図12及び図13に示されている室内熱交換器10は、内周側に室内ファン120を囲い込み可能に四角型に曲げられている。さらに、変形例1Bでは、図14に示されている室内熱交換器10は、内周側に室内ファン120を囲い込み可能にC字型に曲げられている。このような構成により、内周側に配置される室内ファン120から吹出された室内空気が、第1扁平管21及び第2扁平管22の幅方向に沿って複数の第1伝熱フィン31のフィン間から複数の第2伝熱フィン32のフィン間を通り抜けて第2伝熱フィン32の連通部34のある外周側に導出される。その結果、室内熱交換器10では、室内ファン120が周囲に吹出す気流を効率良く活用して凝縮水についての水はけ性が向上されている。
図6を用いて説明したように、第1扁平管21は、複数の第1伝熱フィン31の風上縁31aよりも0mm以上風上側に位置することにより、例えば第1熱交換部11及び第2熱交換部12を曲げるときなどに第1伝熱フィン31の風上縁31aよりも0mm以上風下側に突出する第1扁平管21が先にロール治具210などの部材に当たり、例えば複数の第1伝熱フィン31の風上縁31aの座屈が防止される。その結果、複数の第1伝熱フィン31の風上縁31aの変形による通風抵抗の増加を抑制できる。
図10に示したように風上側に位置する風上部分の管壁21d,22dの肉厚tt3が側面部分の管壁21c,22cの肉厚t2よりも厚いと、第1扁平管21及び第2扁平管22がロール治具210で曲げられるときに第1扁平管21及び第2扁平管22にロール治具210による傷がついても、耐圧強度の低下を抑制することができる。その結果、室内熱交換器10の内周側に曲がっている部分で第1扁平管21及び第2扁平管22の耐圧強度が低下するのを抑制することができる。
図11に示されている第1伝熱フィン31の風下縁31bと第2伝熱フィン32の風上側の主部33との間に隙間CLが形成され、第1熱交換部11と第2熱交換部12が接触しないように構成されることで、温度差のある第1熱交換部11と第2熱交換部12のうちの一方から他方に熱が伝導するのを抑制することができる。その結果、第1熱交換部11と第2熱交換部12の間の熱伝導によって第1熱交換部11と第2熱交換部12の熱交換の性能が低下するのを抑制することができる。
図11に示されているように、第2扁平管22が複数の第2伝熱フィン32の風上縁32aよりも0mm以上風上側に位置することにより、第1熱交換部11と第2熱交換部12の間の隙間CLを維持し易くなる。第2扁平管22のこの配置により維持される隙間CLによって、第1熱交換部11と第2熱交換部12の間の熱伝導による熱交換の性能が低下するのを防ぎ易くなる。
図11に示されているように、第2扁平管22が複数の第2伝熱フィンの風上縁よりも2mm以下だけ風上側に位置することにより、第1熱交換部11と第2熱交換部12の間に2mm以下の隙間CLを確実に形成できる。つまり、第1伝熱フィン31の風下縁31bと第2伝熱フィン32の風上縁32aとの距離D3が2mm以下になる。第1熱交換部11と第2熱交換部12の間にできた2mm以下の隙間に凝縮水が表面張力により引き寄せられて流れ落ち易くなる。その結果、室内熱交換器10における凝縮水の排水性能が向上する。
図11に示されているように、複数の第1伝熱フィン31の風下縁31bが隙間CLに沿って直線状に鉛直方向に延びるので、凝縮水を風下縁31bに沿って導き易くなる。その結果、凝縮水が飛散したりするなどの凝縮水による不具合が生じるのを抑制することができる。
第1熱交換部11及び第2熱交換部12が図5に示されたようにL字型の2組の第1ペアP1と第2ペアP2で、図12及び図13の四角型の1組の第1熱交換部11及び第2熱交換部12で、又は図14に示されているC字型の1組の第1熱交換部及び第2熱交換部で風上の空間の周囲を囲うことができる。その結果、室内熱交換器10が適用される室内機100の構成の簡素化を図ることができる。
11 第1熱交換部
12 第2熱交換部
21 第1扁平管
21b,21c,21d 管壁
22 第2扁平管
22b,22c,22d 管壁
31 第1伝熱フィン
31a 風上縁
31b 風下縁
32 第2伝熱フィン
32a 風上縁
32b 風下縁
33 主部
34 連通部
35 切り欠き
Claims (9)
- 複数段並んだ第1扁平管(21)及び前記第1扁平管と交差する複数の第1伝熱フィン(31)を有し、前記第1扁平管の幅方向に流れる室内空気と前記第1扁平管の中を流れる冷媒との間で熱交換を行わせる第1熱交換部(11)と、
複数段並んだ第2扁平管(22)及び前記第2扁平管と交差する複数の第2伝熱フィン(32)を有し、前記第2扁平管の幅方向に流れる室内空気と前記第2扁平管の中を流れる冷媒との間で熱交換を行わせる第2熱交換部(12)と、
を備え、
前記第1伝熱フィン及び前記第2伝熱フィンは、それぞれ前記第1扁平管及び前記第2扁平管を差し込む切り欠き(35)が形成される風上側の主部(33)及び、前記切り欠きの開口端と反対側に位置する風下側の連通部(34)を有し、
前記第1熱交換部と前記第2熱交換部は、各段の前記第1扁平管と前記第2扁平管とが幅方向に設置され、風上側が内周側、風下側が外周側になるように曲がっている、室内熱交換器。 - 前記第1熱交換部及び前記第2熱交換部は、前記内周側に室内ファン(120)を囲い込み可能に曲げられ、前記内周側に配置される前記室内ファンから吹出された室内空気を前記第1扁平管及び前記第2扁平管の幅方向に沿って複数の前記第1伝熱フィンのフィン間から複数の前記第2伝熱フィンのフィン間を通り抜けて前記第2伝熱フィンの前記連通部のある前記外周側に導出可能に配置されている、
請求項1に記載の室内熱交換器。 - 複数の前記第1扁平管は、複数の前記第1伝熱フィンの風上縁(31a)よりも0mm以上風上側に位置して配置されている、
請求項1又は請求項2に記載の室内熱交換器。 - 複数段の前記第1扁平管及び複数段の前記第2扁平管は、風上側に位置する風上部分の管壁(21d,22d)の肉厚が、前記第1扁平管及び前記第2扁平管の段方向に位置する側面部分の管壁(21c,22c)の肉厚よりも厚い、
請求項3に記載の室内熱交換器。 - 前記第1熱交換部は、前記第1熱交換部の複数の前記第1伝熱フィンの風下縁(31b)と前記第2熱交換部の前記第2伝熱フィンの風上側の前記主部との間に隙間が形成されて前記第2熱交換部と接触しないように構成されている、
請求項1から4のいずれか一項に記載の室内熱交換器。 - 前記第2扁平管は、複数の前記第2伝熱フィンの風上縁(32a)よりも0mm以上風上側に位置して配置されている、
請求項5に記載の室内熱交換器。 - 前記第2扁平管は、複数の前記第2伝熱フィンの前記風上縁よりも2mm以下だけ風上側に位置して配置されている、
請求項6に記載の室内熱交換器。 - 前記第1熱交換部は、複数の前記第1伝熱フィンの前記風下縁が前記隙間に沿って直線状に鉛直方向に延びている、
請求項5から7のいずれか一項に記載の室内熱交換器。 - 前記第1熱交換部及び前記第2熱交換部は、前記第1扁平管及び前記第2扁平管の段方向から見て、L字型、C字型又は四角型に曲げられている、
請求項1から8のいずれか一項に記載の室内熱交換器。
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ES17779080T ES2793474T3 (es) | 2016-04-07 | 2017-04-03 | Intercambiador de calor interior |
US16/091,440 US20190170372A1 (en) | 2016-04-07 | 2017-04-03 | Indoor heat exchanger |
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Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102491602B1 (ko) * | 2015-10-23 | 2023-01-25 | 삼성전자주식회사 | 공기조화기 |
JP6897372B2 (ja) * | 2017-07-03 | 2021-06-30 | ダイキン工業株式会社 | 熱交換器 |
JP7092987B2 (ja) * | 2018-01-22 | 2022-06-29 | ダイキン工業株式会社 | 室内熱交換器および空気調和装置 |
JP7561483B2 (ja) * | 2018-06-12 | 2024-10-04 | ダイキン工業株式会社 | 室内熱交換器及び空気調和装置 |
JP7514591B2 (ja) * | 2018-11-12 | 2024-07-11 | キャリア コーポレイション | 冷凍システム用のコンパクト熱交換器アセンブリ |
KR20200078936A (ko) * | 2018-12-24 | 2020-07-02 | 삼성전자주식회사 | 열 교환기 |
CN113091297B (zh) * | 2021-04-13 | 2023-06-23 | 青岛海尔空调器有限总公司 | 一种空调管路结构及空调器 |
WO2024177325A1 (ko) * | 2023-02-21 | 2024-08-29 | 삼성전자 주식회사 | 열교환기를 채용한 공기조화기 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06123587A (ja) * | 1992-10-12 | 1994-05-06 | Toshiba Corp | 熱交換器 |
JP2002139282A (ja) * | 2000-10-31 | 2002-05-17 | Mitsubishi Electric Corp | 熱交換器、冷凍空調装置、熱交換器の製造方法 |
JP2003262485A (ja) * | 2002-03-07 | 2003-09-19 | Mitsubishi Electric Corp | フィンチューブ型熱交換器、その製造方法及び冷凍空調装置 |
JP2006023034A (ja) * | 2004-07-08 | 2006-01-26 | Denso Corp | 熱交換器用チューブの製造方法、熱交換器用チューブおよび熱交換器 |
JP2009229025A (ja) * | 2008-03-25 | 2009-10-08 | Showa Denko Kk | オイルクーラ |
WO2013160957A1 (ja) * | 2012-04-26 | 2013-10-31 | 三菱電機株式会社 | 熱交換器、室内機及び冷凍サイクル装置 |
WO2014076757A1 (ja) * | 2012-11-13 | 2014-05-22 | 三菱電機株式会社 | 扁平形状伝熱管、それを備えたクロスフィンチューブ型熱交換器の製造方法、その方法で製造されたクロスフィンチューブ型熱交換器 |
WO2014196569A1 (ja) * | 2013-06-04 | 2014-12-11 | 三菱電機株式会社 | 空気調和装置の室外機 |
WO2015025365A1 (ja) * | 2013-08-20 | 2015-02-26 | 三菱電機株式会社 | 熱交換器、空調機及び冷凍サイクル装置 |
WO2015037234A1 (ja) * | 2013-09-11 | 2015-03-19 | ダイキン工業株式会社 | 熱交換器の製造方法及び熱交換器 |
JP2016038192A (ja) * | 2014-08-11 | 2016-03-22 | 東芝キヤリア株式会社 | パラレルフロー型熱交換器および空気調和機 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0165067B1 (ko) * | 1996-04-09 | 1999-01-15 | 구자홍 | 2열 플랫튜브형 열교환기 |
US6964296B2 (en) * | 2001-02-07 | 2005-11-15 | Modine Manufacturing Company | Heat exchanger |
JP4300508B2 (ja) * | 2002-12-25 | 2009-07-22 | 株式会社ティラド | 熱交換器用プレートフィンおよび熱交換器コア |
WO2004104506A1 (ja) * | 2003-05-23 | 2004-12-02 | Mitsubishi Denki Kabushiki Kaisha | プレートフィンチューブ型の熱交換器 |
CN2881512Y (zh) * | 2005-12-02 | 2007-03-21 | 宋锐 | 新型翅片式换热器 |
WO2008041656A1 (fr) * | 2006-09-29 | 2008-04-10 | Daikin Industries, Ltd. | Unité intérieure de conditionneur d'air |
CN201535636U (zh) * | 2009-07-08 | 2010-07-28 | 珠海格力电器股份有限公司 | 翅片管式热交换器 |
CN103299149B (zh) * | 2011-01-21 | 2015-04-29 | 大金工业株式会社 | 热交换器及空调机 |
US20130299152A1 (en) * | 2011-01-21 | 2013-11-14 | Daikin Industries, Ltd. | Heat exchanger and air conditioner |
JP5689033B2 (ja) * | 2011-06-28 | 2015-03-25 | 三菱電機株式会社 | フィンチューブ型熱交換器及びこれを用いた冷凍サイクル装置 |
JP2013132675A (ja) * | 2011-12-27 | 2013-07-08 | Daikin Industries Ltd | 熱交換器の製造方法 |
CN105190202B (zh) * | 2013-05-08 | 2017-11-17 | 三菱电机株式会社 | 热交换器和制冷循环装置 |
WO2016013100A1 (ja) * | 2014-07-25 | 2016-01-28 | 三菱電機株式会社 | 熱交換器およびこの熱交換器を備えた空調冷凍装置 |
-
2016
- 2016-04-07 JP JP2016077262A patent/JP6380449B2/ja active Active
-
2017
- 2017-04-03 AU AU2017247746A patent/AU2017247746B2/en active Active
- 2017-04-03 WO PCT/JP2017/013908 patent/WO2017175702A1/ja active Application Filing
- 2017-04-03 CN CN201780020896.1A patent/CN108885015A/zh active Pending
- 2017-04-03 US US16/091,440 patent/US20190170372A1/en not_active Abandoned
- 2017-04-03 EP EP17779080.5A patent/EP3441683B1/en active Active
- 2017-04-03 ES ES17779080T patent/ES2793474T3/es active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06123587A (ja) * | 1992-10-12 | 1994-05-06 | Toshiba Corp | 熱交換器 |
JP2002139282A (ja) * | 2000-10-31 | 2002-05-17 | Mitsubishi Electric Corp | 熱交換器、冷凍空調装置、熱交換器の製造方法 |
JP2003262485A (ja) * | 2002-03-07 | 2003-09-19 | Mitsubishi Electric Corp | フィンチューブ型熱交換器、その製造方法及び冷凍空調装置 |
JP2006023034A (ja) * | 2004-07-08 | 2006-01-26 | Denso Corp | 熱交換器用チューブの製造方法、熱交換器用チューブおよび熱交換器 |
JP2009229025A (ja) * | 2008-03-25 | 2009-10-08 | Showa Denko Kk | オイルクーラ |
WO2013160957A1 (ja) * | 2012-04-26 | 2013-10-31 | 三菱電機株式会社 | 熱交換器、室内機及び冷凍サイクル装置 |
WO2014076757A1 (ja) * | 2012-11-13 | 2014-05-22 | 三菱電機株式会社 | 扁平形状伝熱管、それを備えたクロスフィンチューブ型熱交換器の製造方法、その方法で製造されたクロスフィンチューブ型熱交換器 |
WO2014196569A1 (ja) * | 2013-06-04 | 2014-12-11 | 三菱電機株式会社 | 空気調和装置の室外機 |
WO2015025365A1 (ja) * | 2013-08-20 | 2015-02-26 | 三菱電機株式会社 | 熱交換器、空調機及び冷凍サイクル装置 |
WO2015037234A1 (ja) * | 2013-09-11 | 2015-03-19 | ダイキン工業株式会社 | 熱交換器の製造方法及び熱交換器 |
JP2016038192A (ja) * | 2014-08-11 | 2016-03-22 | 東芝キヤリア株式会社 | パラレルフロー型熱交換器および空気調和機 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3951303A4 (en) * | 2019-03-26 | 2022-12-14 | Fujitsu General Limited | AIR CONDITIONER |
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ES2793474T3 (es) | 2020-11-16 |
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