EP1832832A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
EP1832832A1
EP1832832A1 EP07101010A EP07101010A EP1832832A1 EP 1832832 A1 EP1832832 A1 EP 1832832A1 EP 07101010 A EP07101010 A EP 07101010A EP 07101010 A EP07101010 A EP 07101010A EP 1832832 A1 EP1832832 A1 EP 1832832A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
air
louvers
flat portion
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07101010A
Other languages
German (de)
English (en)
Inventor
Yusuke Iino
Aya Yoshizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
Original Assignee
Sanden Corp
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 Sanden Corp filed Critical Sanden Corp
Publication of EP1832832A1 publication Critical patent/EP1832832A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F28F1/126—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 consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins

Definitions

  • the present invention relates to a heat exchanger having a corrugated fin on which a plurality of louvers are arranged in an air-flow direction, and specifically, to a heat exchanger suitable as a heat exchanger used in a refrigeration system of an air conditioning system for a vehicle.
  • a structure is known wherein a plurality of louvers are arranged in an air-flow direction on each corrugated fin, thereby improving the efficiency for heat exchange (for example, Japanese Utility Model Laid-Open 55-167087 ).
  • a structure is also known wherein a windward flat portion, a group of windward louvers each inclined relative to the air-flow direction, an intermediate flat portion, a group of leeward louvers each inclined in a direction opposite to the inclined direction of the windward louvers, and a leeward flat portion are formed on the corrugated fin in this order from the upstream side of the air-flow direction.
  • each louver is usually formed by cutting and raising a part of the corrugated fin.
  • the efficiency for heat exchange greatly changes by the shape of the corrugated fin, and the positions, the inclination angles, etc. of the group of windward louvers and the group of leeward louvers.
  • the efficiency for heat exchange changes by the inclination angles of the windward louvers and the leeward louvers, the lengths in the air-flow direction of the windward flat portion and the leeward flat portion, etc.
  • a heat exchanger which can further optimize a shape of a corrugated fin in the heat exchanger, an inclination angle of louvers provided on the corrugated fin, etc., thereby further improving the efficiency for heat exchange of the heat exchanger.
  • a heat exchanger has a corrugated fin on which a plurality of louvers are arranged in an air-flow direction, and is characterized in that a windward flat portion, a group of windward louvers each inclined relative to the air-flow direction, an intermediate flat portion, a group of leeward louvers each inclined in a direction opposite to the inclined direction of the windward louvers, and a leeward flat portion are formed on the corrugated fin in this order from the upstream side of the air-flow direction, and
  • the length in the air-flow direction of each of the windward flat portion and the leeward flat portion is set in a range of 0.7 mm to 0.9 mm. Further, it is preferred that the length in the air-flow direction of the intermediate flat portion is set in a range of 0.9 mm to 1.3 mm. Further, it is preferred that the inclination angle of each of the windward louvers and the leeward louvers relative to the air-flow direction is set in a range of 23.5 degrees to 25 degrees, and in a most desirable embodiment, it is set at 24 degrees.
  • the length of the chord of the circular arc portion forming the turning part of the corrugated fin is set at a length of 1.2 mm or more.
  • a dead air area retaining passing air or forming a vortex flow is likely to be formed near the turning part of the corrugated fin, if the length of the chord of the circular arc portion forming the turning part of the corrugated fin is less than 1.2 mm, the air-flow resistance may increase and the dead air area may increase.
  • each of the group of windward louvers and the group of leeward louvers is formed by cutting and raising a part of the corrugated fin.
  • the type of the heat exchanger according to the present invention is not particularly limited, for example, the heat exchanger is formed as a stacking type heat exchanger in which tubes and corrugated fins are stacked alternately.
  • the heat exchanger according to the present invention is suitable as a heat exchanger provided in a refrigeration system of an air conditioning system for a vehicle.
  • the heat exchanger according to the present invention is suitable as a heat exchanger for heat radiation.
  • the efficiency for heat exchange of the heat exchanger may be greatly improved.
  • Fig. I depicts a heat exchanger according to an embodiment of the present invention.
  • the heat exchanger is formed as a stacking type heat exchanger 1 in which tubes 4 and corrugated fins 5 are stacked alternately.
  • Heat exchanger 1 has a pair of headers 2 and 3, and a plurality of tubes 4 are disposed between headers 2 and 3.
  • Corrugated fins 5 are disposed between adjacent tubes 4, on the uppermost tube 4 and under the lowermost tube 4, respectively.
  • Side plates 6 are provided on the uppermost corrugated fin 5 and under the lowermost corrugated fin 5, respectively.
  • An inlet pipe 7 is provided on one header 3, and an outlet pipe 8 is provided on the other header 2.
  • the direction shown by arrow D is an air-flow direction.
  • a windward flat portion 11 As depicted in Fig. 2, on corrugated fin 5, a windward flat portion 11, a group of windward louvers 12 each inclined relative to air-flow direction D, an intermediate flat portion 13, a group of leeward louvers 14 each inclined in a direction opposite to the inclined direction of windward louvers 12, and a leeward flat portion 15 are formed in this order from the upstream side of air-flow direction D.
  • a length A in air-flow direction D of each of windward flat portion 11 and leeward flat portion 15 is set in a range of 0.5 mm to 1.1 mm, and in this embodiment, set within a range of 0.7 mm to 0.9 mm.
  • a length B in air-flow direction D of intermediate flat portion 13 is set in a range of 0.5 mm to 1.7 mm, and in this embodiment, set within a range of 0.9 mm to 1.3 mm.
  • An inclination angle ⁇ of each of windward louvers 12 and leeward louvers 14 relative to air-flow direction D is set in a range of 23 degrees to 26 degrees, and in this embodiment, set at 24 degrees.
  • a length of a chord 5b of a circular arc portion forming a turning part 5a of corrugated fin 5 is set at a length of 1.2 mm or more.
  • the structure of the heat exchanger according to the present invention may be applied to a heat exchanger having a corrugated fin arranged with a plurality of louvers in an air-flow direction, and in particular, it is suitable as a heat exchanger provided in a refrigeration system of an air conditioning system for a vehicle.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP07101010A 2006-02-07 2007-01-23 Échangeur de chaleur Withdrawn EP1832832A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006029893A JP2007212009A (ja) 2006-02-07 2006-02-07 熱交換器

Publications (1)

Publication Number Publication Date
EP1832832A1 true EP1832832A1 (fr) 2007-09-12

Family

ID=38291185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07101010A Withdrawn EP1832832A1 (fr) 2006-02-07 2007-01-23 Échangeur de chaleur

Country Status (3)

Country Link
EP (1) EP1832832A1 (fr)
JP (1) JP2007212009A (fr)
CN (1) CN101017068A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295919A3 (fr) * 2009-08-13 2014-03-26 Sanhua Holding Group Co., Ltd. Ailette et échangeur thermique les comprenant
EP2253921A3 (fr) * 2009-05-13 2014-04-09 Behr GmbH & Co. KG Nervure pour un caloporteur
CN105066037A (zh) * 2015-09-18 2015-11-18 江苏健享实业有限公司 一种带散热片导向机构的led路灯
US20180120034A1 (en) * 2016-11-01 2018-05-03 Ingersoll-Rand Company Bar and plate air-oil heat exchanger
US20240167773A1 (en) * 2022-11-18 2024-05-23 Mahle International Gmbh Corrugated fin for heat exchanger

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5803768B2 (ja) * 2012-03-22 2015-11-04 株式会社デンソー 熱交換器用フィンおよび熱交換器
CN107300086A (zh) * 2017-08-23 2017-10-27 张子明 一种内导式均流管及其应用
JP2019219139A (ja) * 2018-06-22 2019-12-26 株式会社ティラド 熱交換器用コルゲートフィン

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107190A (ja) * 1982-12-10 1984-06-21 Nippon Radiator Co Ltd 熱交換器
US5035052A (en) * 1989-03-08 1991-07-30 Nippondenso Co., Ltd. Method of assembling a heat exchanger including a method of determining values of parameters in a heat exchanger, and determining whether the efficiency of the heat exchanger is acceptable
US5271458A (en) * 1991-10-18 1993-12-21 Nippondenso Co., Ltd. Corrugated louver fin type heat exchanging device
JPH06241678A (ja) * 1993-02-19 1994-09-02 Hitachi Ltd ヒートポンプ用パラレルフロー熱交換器
DE20010994U1 (de) * 2000-06-21 2000-08-31 Behr Gmbh & Co, 70469 Stuttgart Netz für einen Wärmeübertrager
US20050045314A1 (en) * 2004-08-26 2005-03-03 Valeo, Inc. Aluminum heat exchanger and method of making thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030990A (ja) * 1983-08-01 1985-02-16 Hitachi Ltd 異物除去装置の運転方法及び装置
JPS6256786A (ja) * 1985-09-06 1987-03-12 Hitachi Ltd 熱交換器
JPH03204595A (ja) * 1989-12-28 1991-09-06 Showa Alum Corp 凝縮器
JP2001349684A (ja) * 2000-06-05 2001-12-21 Hino Motors Ltd ラジエータ
JP2005037002A (ja) * 2003-07-16 2005-02-10 Matsushita Electric Ind Co Ltd 熱交換器
JP2005140454A (ja) * 2003-11-10 2005-06-02 Toyo Radiator Co Ltd 熱交換器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107190A (ja) * 1982-12-10 1984-06-21 Nippon Radiator Co Ltd 熱交換器
US5035052A (en) * 1989-03-08 1991-07-30 Nippondenso Co., Ltd. Method of assembling a heat exchanger including a method of determining values of parameters in a heat exchanger, and determining whether the efficiency of the heat exchanger is acceptable
US5271458A (en) * 1991-10-18 1993-12-21 Nippondenso Co., Ltd. Corrugated louver fin type heat exchanging device
JPH06241678A (ja) * 1993-02-19 1994-09-02 Hitachi Ltd ヒートポンプ用パラレルフロー熱交換器
DE20010994U1 (de) * 2000-06-21 2000-08-31 Behr Gmbh & Co, 70469 Stuttgart Netz für einen Wärmeübertrager
US20050045314A1 (en) * 2004-08-26 2005-03-03 Valeo, Inc. Aluminum heat exchanger and method of making thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2253921A3 (fr) * 2009-05-13 2014-04-09 Behr GmbH & Co. KG Nervure pour un caloporteur
EP2295919A3 (fr) * 2009-08-13 2014-03-26 Sanhua Holding Group Co., Ltd. Ailette et échangeur thermique les comprenant
CN105066037A (zh) * 2015-09-18 2015-11-18 江苏健享实业有限公司 一种带散热片导向机构的led路灯
US20180120034A1 (en) * 2016-11-01 2018-05-03 Ingersoll-Rand Company Bar and plate air-oil heat exchanger
US20240167773A1 (en) * 2022-11-18 2024-05-23 Mahle International Gmbh Corrugated fin for heat exchanger

Also Published As

Publication number Publication date
CN101017068A (zh) 2007-08-15
JP2007212009A (ja) 2007-08-23

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