WO2018020552A1 - Échangeur de chaleur et climatiseur - Google Patents

Échangeur de chaleur et climatiseur Download PDF

Info

Publication number
WO2018020552A1
WO2018020552A1 PCT/JP2016/071738 JP2016071738W WO2018020552A1 WO 2018020552 A1 WO2018020552 A1 WO 2018020552A1 JP 2016071738 W JP2016071738 W JP 2016071738W WO 2018020552 A1 WO2018020552 A1 WO 2018020552A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
heat transfer
transfer tube
fin
heat
Prior art date
Application number
PCT/JP2016/071738
Other languages
English (en)
Japanese (ja)
Inventor
石橋　晃
中村　伸
真哉 東井上
伊東　大輔
前田　剛志
良太 赤岩
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2018530214A priority Critical patent/JP6621928B2/ja
Priority to PCT/JP2016/071738 priority patent/WO2018020552A1/fr
Publication of WO2018020552A1 publication Critical patent/WO2018020552A1/fr

Links

Images

Classifications

    • 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
    • F25B39/02—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
    • 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
    • F28F1/30—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 being attachable to the element
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal

Definitions

  • the present invention relates to a heat exchanger and an air conditioner.
  • Patent Document 1 a heat exchanger using a flat tube as a heat transfer tube is known (see, for example, JP-A-9-280754: Patent Document 1).
  • a plurality of flat tubes are arranged in parallel as heat transfer tubes, and corrugated fins are arranged between adjacent flat tubes.
  • a reinforcing rib is formed on the windward side of the corrugated fin.
  • a louver is formed on the leeward side of the corrugated fin.
  • the corrugated fin has a portion extending to the windward side from the heat transfer tube.
  • Such a heat exchanger is applied to an air conditioner, for example.
  • Patent Document 1 by adopting the above-described configuration, meandering during molding of the corrugated fin can be prevented, and a sufficient frost formation region can be ensured when the corrugated fin is caused to function.
  • the conventional heat exchanger as described above is excellent in terms of heat transfer performance because the corrugated fin has a sufficiently large surface area.
  • the above-described conventional heat exchanger has room for improvement with respect to the drainage property of removing water droplets from the surface of the corrugated fin during the defrosting operation.
  • the present invention was made to solve the above-described problems, and an object of the present invention is to provide a heat exchanger excellent in heat transfer performance and drainage and an air conditioner to which the heat exchanger is applied. It is to be.
  • the heat exchanger according to the present invention includes at least one heat transfer tube and at least one fin.
  • the heat transfer tube is provided so as to extend along the first direction, and the refrigerant circulates therein.
  • the fin is located on the windward side from the center of the heat transfer tube in the second direction intersecting the first direction, and is connected to the heat transfer tube.
  • the heat transfer characteristics of the heat exchanger can be improved. Furthermore, when the water droplets adhering to the surface of the fin move to the leeward side due to the air flow, the water droplet flows on the surface of the heat transfer tube located on the leeward side of the fin and easily passes through the surface of the heat transfer tube. Discharged. That is, the drainage of the heat exchanger can be improved.
  • FIG. 4 is a schematic partial sectional view taken along line IV-IV in FIG. 3. It is a partial cross section schematic diagram of the modification of the heat exchanger which concerns on this embodiment. It is a schematic diagram for demonstrating the manufacturing method of the heat exchanger which concerns on this embodiment. It is a schematic diagram which shows the refrigerant circuit of the air conditioning apparatus using the heat exchanger which concerns on this embodiment. It is a partial external appearance schematic diagram of the heat exchanger of a comparative example.
  • FIG. ⁇ Configuration of heat exchanger> 1 and 2 show the appearance of the heat exchanger according to the present embodiment.
  • FIG. 3 is a partial side schematic view of the heat exchanger shown in FIGS. 1 and 2 as viewed from the side.
  • 4 is a schematic cross-sectional view taken along line IV-IV in FIG.
  • the heat exchanger according to the present embodiment shown in FIGS. 1 to 4 includes at least one heat transfer tube 1 that is a flat tube, at least one fin 3 formed on the surface of the heat transfer tube 1, and a gravity direction. And the header 2 connected to the upper end and the lower end of the heat transfer tubes 1 arranged respectively.
  • the heat transfer tube 1 is provided so as to extend along a first direction which is a direction along the direction of gravity.
  • a refrigerant circulates inside the heat transfer tube 1.
  • a plurality of heat transfer tubes 1 are arranged so as to be arranged substantially parallel to each other.
  • the upper ends of the plurality of heat transfer tubes 1 are respectively connected to the upper header 2.
  • the lower ends of the plurality of heat transfer tubes 1 are also connected to the lower header 2.
  • the lower header 2 is supplied with refrigerant from, for example, the end thereof.
  • the refrigerant flowing from the inside of the header 2 into the heat transfer tube 1 rises inside the heat transfer tube 1 and flows into the upper header 2.
  • the refrigerant that has reached the upper header 2 is discharged from the header 2 to the outside of the header 2 as indicated by an arrow, for example.
  • the fins 3 that are cut and raised are formed on the side surfaces of the heat transfer tubes 1 where the adjacent heat transfer tubes 1 face each other.
  • the side surface portion is a flat surface portion having the largest area among the side surfaces of the heat transfer tube 1.
  • the plurality of fins 3 are arranged at intervals from each other along the extending direction of the heat transfer tube 1.
  • the fin 3 connected to the heat transfer tube 1 is a central axis that is the center of the heat transfer tube 1 in a second direction (a direction perpendicular to the first direction and going from the windward to the leeward direction) that intersects the first direction of the heat transfer tube 1. 4 (see FIG. 2) is located on the windward side.
  • the fins 3 are not formed on the leeward side from the central axis 4.
  • two units in which a plurality of heat transfer tubes 1 are arranged so as to connect between the pair of headers 2 as described above are arranged from the upwind direction to the downwind direction.
  • the heat transfer tube 1 is arranged so that the surface of the side surface portion on which the fins 3 are formed in the heat transfer tube 1 is along the direction from the windward to the leeward.
  • the fin 3 that is a plate-like body has a surface inclined from the horizontal direction to the gravity direction downward from the windward side to the leeward side.
  • the inclination angle ⁇ of the fin 3 with respect to the horizontal direction may be, for example, greater than 0 ° and not greater than 30 °.
  • the lower limit of the inclination angle ⁇ may be 5 ° or 10 °.
  • the upper limit of the inclination angle ⁇ may be 20 ° or 15 °.
  • At least one fin 3 includes a first fin 3 and a second fin 3 arranged so as to sandwich the heat transfer tube 1 when viewed from the windward side.
  • the planar shape of at least one fin 3 viewed from the extending direction (first direction) of the heat transfer tube 1 is a quadrangular shape.
  • the width of the fin 3, which is the protruding height of the fin 3 from the surface of the heat transfer tube 1, may be, for example, half or less of the distance between the adjacent heat transfer tubes 1. In this case, the positions of the fins 3 in the first direction in the adjacent heat transfer tubes 1 may be the same.
  • variety of the fin 3 is larger than the half of the distance between the adjacent heat exchanger tubes 1, for example, and may be less than the said distance.
  • the fins 3 are arranged so that the positions of the fins 3 in the first direction in the adjacent heat transfer tubes 1 are different.
  • the length of the connecting portion between the fin 3 and the heat transfer tube 1 may be, for example, 30% to 40% of the length of the heat transfer tube 1 in the direction from the windward to the leeward.
  • the thickness of the fin 3 may be 0.1 mm or more and 0.5 mm or less, or 0.2 mm or more and 0.4 mm or less.
  • the heat transfer tube 1 includes a heat transfer tube main body 8, a bonding material 7, and an outer shell member 5.
  • the outer shell member 5 surrounds the outer periphery of the heat transfer tube main body 8.
  • At least one fin 3 is formed on the surface of the outer shell member 5.
  • the material constituting the outer shell member 5 may be aluminum or an alloy containing aluminum and zinc.
  • the material constituting the fin 3 may be the same as the material constituting the outer shell member 5.
  • the material constituting the fin 3 may be a material different from the material constituting the outer shell member 5.
  • the bonding material 7 is located between the heat transfer tube main body 8 and the outer shell member 5.
  • the bonding material 7 connects the heat transfer tube main body 8 and the outer shell member 5.
  • the bonding material 7 is, for example, a brazing material containing silicon.
  • the width (length of the short axis) of the heat transfer tube 1 viewed from the upwind direction may be, for example, 0.5 mm or more and 2 mm or less, for example, 1 mm.
  • the pitch (distance between centers) between the adjacent heat transfer tubes 1 may be 2.5 mm or more and 3.5 mm or less, for example, 3 mm.
  • the fin 3 is inclined downward in the gravity direction toward the leeward side with respect to the horizontal direction. For this reason, the water droplet 6 moves to the leeward side by the action of the inclination and further by the force from the air flow.
  • the water droplet 6 is the surface of the heat transfer tube 1 located on the leeward side of the fin 3. Flows up. Thereafter, the water droplet 6 flows along the surface of the heat transfer tube 1 downward in the direction of gravity and is easily discharged from the heat exchanger. That is, the surface of the heat transfer tube 1 includes a portion located leeward of the fin 3. This part functions as a drainage channel for water droplets. For this reason, compared with the structure where the width
  • FIG. 8 is a partial external schematic view showing the configuration of a heat exchanger as a comparative example.
  • the heat exchanger of the comparative example shown in FIG. 8 includes a heat transfer tube 110 that is a flat tube including a plurality of refrigerant channels 113 and corrugated fins 114 as fins disposed between the plurality of heat transfer tubes 110. .
  • a draining groove 112 is formed on the surface of the heat transfer tube 110. In the direction along the surface portion to which the corrugated fins 114 of the heat transfer tubes 110 are connected, the width of the corrugated fins 114 is wider than the width of the heat transfer tubes 110.
  • a plurality of louvers 114 a and ribs 114 b are formed on the surface of the corrugated fins 114.
  • the width of the corrugated fin 114 is wider than the width of the heat transfer tube 110, although it is excellent in terms of heat transfer performance, the drainage property of water droplets aggregated on the corrugated fin 114 is There is a stand.
  • the surface of the heat transfer tube 1 located on the leeward side of the fin 3 functions as a flow path for the water droplets 6 as described above. Therefore, in the heat exchanger according to the present embodiment, excellent drainage can be realized.
  • the fin 3 since the fin 3 includes the first fin 3 and the second fin 3 arranged on both sides of the heat transfer tube 1, the fin 3 is formed only on one side of the heat transfer tube 1. Further, the heat transfer characteristics of the heat exchanger can be improved. Moreover, the corrosion resistance of a heat exchanger can be improved by using the alloy which contains aluminum and zinc as a material which comprises the outer shell member 5. FIG.
  • FIG. 5 is a partial cross-sectional schematic diagram showing a modification of the heat exchanger according to the present embodiment.
  • the heat exchanger shown in FIG. 5 basically has the same configuration as that of the heat exchanger shown in FIGS. 1 to 4, but the planar shape of the fin 3 is the heat exchanger shown in FIGS. Is different. That is, in the heat exchanger shown in FIG. 5, the planar shape of at least one fin 3 is triangular when viewed from the first direction, which is the direction in which the heat transfer tube 1 extends.
  • FIG. 6 is a schematic diagram for explaining the manufacturing method of the heat exchanger according to the present embodiment, and shows a state before the heat exchanger is assembled. The manufacturing method of the heat exchanger which concerns on this embodiment is demonstrated using FIG.
  • the members (the heat transfer tube main body 8 which is a flat tube, the outer shell member 5 on which the fins 3 are formed, and the bonding material 7) constituting the heat transfer tube 1 of the heat exchanger are prepared.
  • the bonding material 7 a brazing material containing silicon can be used.
  • the bonding material 7 is disposed on the inner peripheral surface of the outer shell member 5 (the back surface opposite to the surface on which the fins 3 are formed).
  • the heat transfer tube main body 8 is sandwiched between the two outer shell members 5 in which the bonding material 7 is disposed on the inner peripheral surface from both side surfaces of the heat transfer tube main body 8. In this state, the heat transfer tube main body 8 and the outer shell member 5 are joined (for example, brazed) by the joining material 7 by heat treatment in a heating furnace.
  • the heat transfer tube 1 having a plurality of fins 3 arranged on the side surface is prepared. Furthermore, other members constituting the heat exchanger (such as the header 2 shown in FIG. 1) are prepared, and these other members and the heat transfer tube 1 are joined. In this way, the heat exchanger shown in FIG. 1 can be manufactured.
  • a heat exchanger can be manufactured in a relatively short time and at a low cost. Further, since the heat transfer tube 1 is formed by attaching the outer shell member 5 provided with the fins 3 to the outer peripheral surface of the heat transfer tube main body 8 in advance, a plurality of fins 3 are formed directly on the heat transfer tube main body 8. Further, the manufacturing process can be facilitated.
  • FIG. 7 is a schematic diagram showing a refrigerant circuit of the air-conditioning apparatus according to the present embodiment.
  • the refrigerant circuit shown in the figure includes a compressor 33, a condensation heat exchanger 34, an expansion device 35, an evaporating heat exchanger 36, and two blowers 37.
  • the two blowers 37 are each driven by a blower motor 38.
  • the two blowers 37 blow gas (for example, air) to either the condensation heat exchanger 34 or the evaporative heat exchanger 36, respectively.
  • the refrigerant circulates in the order of the compressor 33, the condensing heat exchanger 34, the expansion device 35, and the evaporating heat exchanger 36.
  • the heat exchanger described in the first embodiment is applied to at least one of the condensation heat exchanger 34 and the evaporating heat exchanger 36 shown in FIG.
  • the blower 37 blows expectations to each heat exchanger along the second direction (the direction indicated by the arrow in FIG. 2).
  • the heat exchanger according to the first embodiment described above for the condensation heat exchanger 34 or the evaporative heat exchanger 36, or both the condensing heat exchanger 34 and the evaporative heat exchanger 36, air conditioning with high energy efficiency is achieved.
  • the device can be realized.
  • the heat exchanger according to Embodiment 1 may be applied to an indoor unit or an outdoor unit of an air conditioner, or both an indoor unit and an outdoor unit.
  • energy efficiency is comprised by following Formula here, for example.
  • Heating energy efficiency capacity of indoor heat exchanger (condensation heat exchanger) / total input
  • Cooling energy efficiency capacity of indoor heat exchanger (evaporation heat exchanger) / total input
  • any type of oil can be used.
  • any refrigerator oil may be used regardless of whether the refrigerant dissolves in the oil or not.
  • the present invention can be applied to an air conditioner, a refrigeration cycle apparatus, a heat pump apparatus, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur de chaleur présentant d'excellentes performances de transfert de chaleur et d'excellentes performances de drainage d'eau et un climatiseur sur lequel cet échangeur de chaleur est appliqué. L'échangeur de chaleur est doté d'au moins un tube de transfert de chaleur (1) et d'au moins une ailette (3). Le tube de transfert de chaleur (1) est disposé de manière à s'étendre le long d'une première direction, et un réfrigérant s'écoule à travers l'intérieur du tube de transfert de chaleur (1). L'ailette (3) est positionnée en amont du centre du tube de transfert de chaleur (1) le long d'une seconde direction qui croise la première direction, et l'ailette (3) est raccordée au tube de transfert de chaleur (1).
PCT/JP2016/071738 2016-07-25 2016-07-25 Échangeur de chaleur et climatiseur WO2018020552A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018530214A JP6621928B2 (ja) 2016-07-25 2016-07-25 熱交換器および空気調和装置
PCT/JP2016/071738 WO2018020552A1 (fr) 2016-07-25 2016-07-25 Échangeur de chaleur et climatiseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/071738 WO2018020552A1 (fr) 2016-07-25 2016-07-25 Échangeur de chaleur et climatiseur

Publications (1)

Publication Number Publication Date
WO2018020552A1 true WO2018020552A1 (fr) 2018-02-01

Family

ID=61016431

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/071738 WO2018020552A1 (fr) 2016-07-25 2016-07-25 Échangeur de chaleur et climatiseur

Country Status (2)

Country Link
JP (1) JP6621928B2 (fr)
WO (1) WO2018020552A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3842698A4 (fr) * 2018-08-23 2021-11-03 Mitsubishi Electric Corporation Ensemble échangeur de chaleur et dispositif à cycle frigorifique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62227056A (ja) * 1986-03-28 1987-10-06 Nippon Radiator Co Ltd アルミニウム製熱交換器用複合材
JP2000234883A (ja) * 1999-02-17 2000-08-29 Showa Alum Corp 熱交換器
JP2010507772A (ja) * 2006-10-24 2010-03-11 ゲーエーアー エネルギーテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング 熱交換器の製造方法
JP2010249343A (ja) * 2009-04-13 2010-11-04 Mitsubishi Electric Corp フィンチューブ型熱交換器及びこれを用いた空気調和機
JP2013019596A (ja) * 2011-07-11 2013-01-31 Mitsubishi Electric Corp 熱交換器、室内機、および室外機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163778U (ja) * 1983-04-15 1984-11-02 カルソニックカンセイ株式会社 熱交換器
JP2009074733A (ja) * 2007-09-20 2009-04-09 Sharp Corp 熱交換器
JP5042927B2 (ja) * 2008-06-11 2012-10-03 シャープ株式会社 熱交換器
JP2012017875A (ja) * 2010-07-06 2012-01-26 T Rad Co Ltd コルゲートフィン型蒸発器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62227056A (ja) * 1986-03-28 1987-10-06 Nippon Radiator Co Ltd アルミニウム製熱交換器用複合材
JP2000234883A (ja) * 1999-02-17 2000-08-29 Showa Alum Corp 熱交換器
JP2010507772A (ja) * 2006-10-24 2010-03-11 ゲーエーアー エネルギーテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング 熱交換器の製造方法
JP2010249343A (ja) * 2009-04-13 2010-11-04 Mitsubishi Electric Corp フィンチューブ型熱交換器及びこれを用いた空気調和機
JP2013019596A (ja) * 2011-07-11 2013-01-31 Mitsubishi Electric Corp 熱交換器、室内機、および室外機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3842698A4 (fr) * 2018-08-23 2021-11-03 Mitsubishi Electric Corporation Ensemble échangeur de chaleur et dispositif à cycle frigorifique

Also Published As

Publication number Publication date
JPWO2018020552A1 (ja) 2018-09-27
JP6621928B2 (ja) 2019-12-18

Similar Documents

Publication Publication Date Title
JP4679542B2 (ja) フィンチューブ熱交換器、およびそれを用いた熱交換器ユニット並びに空気調和機
US10386081B2 (en) Air-conditioning device
JP6790077B2 (ja) 熱交換器
WO2016013100A1 (fr) Échangeur de chaleur et appareil de climatisation et de réfrigération muni d'un échangeur de chaleur
JP6847229B2 (ja) 熱交換器、及び冷凍サイクル装置
JP6877549B2 (ja) 空気調和装置、熱交換器、及び冷凍サイクル装置
US20110120177A1 (en) Heat exchanger for shedding water
JPWO2018078800A1 (ja) 熱交換器及び冷凍サイクル装置
JP6157593B2 (ja) 熱交換器およびこれを用いた冷凍サイクル空調装置
US11175053B2 (en) Heat exchanger, refrigeration cycle device, and air-conditioning apparatus
JP6980117B2 (ja) 熱交換器、熱交換器ユニット、及び冷凍サイクル装置
WO2020012549A1 (fr) Échangeur de chaleur, dispositif d'échange de chaleur, unité d'échangeur de chaleur et système de réfrigération
JP6719657B2 (ja) 熱交換器および冷凍サイクル装置
JP2011112315A (ja) フィンチューブ型熱交換器及びこれを用いた空気調和機
JP6621928B2 (ja) 熱交換器および空気調和装置
JP6471345B2 (ja) 熱交換器
JP5569409B2 (ja) 熱交換器および空気調和機
WO2012098913A1 (fr) Échangeur de chaleur et climatiseur
JP5664272B2 (ja) 熱交換器及び空気調和機
JP6548824B2 (ja) 熱交換器および冷凍サイクル装置
JP2015169358A (ja) 熱交換器
WO2021095452A1 (fr) Échangeur de chaleur et climatiseur
WO2020012548A1 (fr) Échangeur de chaleur, unité d'échangeur de chaleur et dispositif à cycle de réfrigération

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2018530214

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16910456

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16910456

Country of ref document: EP

Kind code of ref document: A1