GB2466687B - Heat exchanger, its manufacturing method and air conditioner including the heat exchanger - Google Patents

Heat exchanger, its manufacturing method and air conditioner including the heat exchanger

Info

Publication number
GB2466687B
GB2466687B GB0912860A GB0912860A GB2466687B GB 2466687 B GB2466687 B GB 2466687B GB 0912860 A GB0912860 A GB 0912860A GB 0912860 A GB0912860 A GB 0912860A GB 2466687 B GB2466687 B GB 2466687B
Authority
GB
United Kingdom
Prior art keywords
heat exchanger
manufacturing
air conditioner
conditioner including
exchanger
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.)
Expired - Fee Related
Application number
GB0912860A
Other versions
GB0912860D0 (en
GB2466687A (en
Inventor
Hideki Mori
Takayuki Hanaki
Mitsusada Hayakawa
Masaaki Azuma
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB0912860D0 publication Critical patent/GB0912860D0/en
Publication of GB2466687A publication Critical patent/GB2466687A/en
Application granted granted Critical
Publication of GB2466687B publication Critical patent/GB2466687B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • B21D53/085Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/0008Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012Brazing heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/0246Heat-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 heat-exchange elements having several adjacent conduits forming a whole, e.g. blocks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/053Heat-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 straight
    • F28D1/0535Heat-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 straight the conduits having a non-circular cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/053Heat-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 straight
    • F28D1/0535Heat-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 straight the conduits having a non-circular cross-section
    • F28D1/05366Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/02Tubular elements of cross-section which is non-circular
    • F28F1/022Tubular elements of cross-section which is non-circular with multiple channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular 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
    • F28F1/24Tubular 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
    • F28F1/32Tubular 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081Heat exchange elements made from metals or metal alloys
    • F28F21/084Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/089Coatings, claddings or bonding layers made from metals or metal alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/14Heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00Fins
    • F28F2215/12Fins with U-shaped slots for laterally inserting conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00Coatings; Surface treatments
    • F28F2245/02Coatings; Surface treatments hydrophilic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
GB0912860A 2009-01-05 2009-07-23 Heat exchanger, its manufacturing method and air conditioner including the heat exchanger Expired - Fee Related GB2466687B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009000225A JP5279514B2 (en) 2009-01-05 2009-01-05 HEAT EXCHANGER, ITS MANUFACTURING METHOD, AND AIR CONDITIONER HAVING THE HEAT EXCHANGER

Publications (3)

Publication Number Publication Date
GB0912860D0 GB0912860D0 (en) 2009-08-26
GB2466687A GB2466687A (en) 2010-07-07
GB2466687B true GB2466687B (en) 2010-12-08

Family

ID=41058461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0912860A Expired - Fee Related GB2466687B (en) 2009-01-05 2009-07-23 Heat exchanger, its manufacturing method and air conditioner including the heat exchanger

Country Status (3)

Country Link
JP (1) JP5279514B2 (en)
CN (1) CN101769689B (en)
GB (1) GB2466687B (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102192674B (en) * 2010-03-16 2016-09-07 乐金电子(天津)电器有限公司 Flat pipe heat exchanger and assembly method thereof
JP5727299B2 (en) * 2010-05-31 2015-06-03 株式会社Uacj Manufacturing method of fin-and-tube heat exchanger
CN102338587B (en) * 2010-07-16 2016-03-02 乐金电子(天津)电器有限公司 Heat exchanger structure and assembly technology thereof
CN102338569A (en) * 2010-07-16 2012-02-01 乐金电子(天津)电器有限公司 Heat exchanger structure and assembly method thereof
CN102338570A (en) * 2010-07-16 2012-02-01 乐金电子(天津)电器有限公司 Heat exchanger structure and assembly process thereof
JP5753355B2 (en) * 2010-09-02 2015-07-22 株式会社Uacj Heat transfer tube for fin-and-tube heat exchanger, fin-and-tube heat exchanger using the same, and manufacturing method thereof
KR20120044848A (en) * 2010-10-28 2012-05-08 삼성전자주식회사 Heat exchanger and micro-channel tube for the same
JP2012102951A (en) * 2010-11-11 2012-05-31 Mitsubishi Alum Co Ltd Tube for heat exchanger, and heat exchanger
JP5397489B2 (en) * 2011-01-21 2014-01-22 ダイキン工業株式会社 Heat exchanger and air conditioner
KR101453708B1 (en) * 2011-01-21 2014-10-22 다이킨 고교 가부시키가이샤 Heat exchanger and air conditioner
JP5748625B2 (en) * 2011-09-15 2015-07-15 三菱電機株式会社 Heat exchanger manufacturing method and manufacturing apparatus
EP2803930B1 (en) * 2012-01-11 2018-06-06 Mitsubishi Electric Corporation Plate fin-and-tube heat exchanger, and refrigeration and air-conditioning system with same
WO2013160950A1 (en) * 2012-04-26 2013-10-31 三菱電機株式会社 Heat exchanger and air conditioner
JP5832641B2 (en) * 2012-04-27 2015-12-16 三菱電機株式会社 Heat exchanger, method for manufacturing the same, and refrigeration cycle apparatus
WO2013160959A1 (en) 2012-04-27 2013-10-31 三菱電機株式会社 Heat exchanger, method for producing same, and refrigeration cycle device
CN102784987B (en) * 2012-06-18 2014-11-19 航天材料及工艺研究所 Method for welding built-in Ni-based high-temperature alloy pipe of C/C composite material
CN105783139A (en) * 2012-08-08 2016-07-20 三菱电机株式会社 Manufacture method for heat exchanger and manufacture method for air conditioner
WO2014024221A1 (en) * 2012-08-08 2014-02-13 三菱電機株式会社 Heat exchanger and air conditioner provided with said heat exchanger
KR20140042093A (en) * 2012-09-27 2014-04-07 삼성전자주식회사 Heat exchanger
JP5911597B2 (en) * 2012-11-13 2016-04-27 三菱電機株式会社 Flat shape heat transfer tube, method of manufacturing cross fin tube type heat exchanger equipped with the same, cross fin tube type heat exchanger manufactured by the method
WO2015040746A1 (en) 2013-09-20 2015-03-26 三菱電機株式会社 Heat exchanger, air conditioner device using said heat exchanger, and method for producing said heat exchanger
DE102013222258A1 (en) 2013-10-31 2015-05-21 MAHLE Behr GmbH & Co. KG Process for producing a heat exchanger, in particular a sorption heat exchanger
CN104640250B (en) * 2013-11-08 2017-08-25 美的集团股份有限公司 Ptc heater and the air conditioner with it
KR102227419B1 (en) * 2014-01-15 2021-03-15 삼성전자주식회사 Heat exchanger and air conditioner having the same
CN104482791A (en) * 2014-12-02 2015-04-01 珠海格力电器股份有限公司 Heat exchanger fin and heat exchanger
KR101540071B1 (en) * 2015-01-27 2015-07-29 (주)삼원산업사 Manufacturing method of condenser for air conditioning
CN208419712U (en) * 2015-10-30 2019-01-22 三菱电机株式会社 Heat exchanger and air conditioner
JP2016048162A (en) * 2015-12-14 2016-04-07 三菱電機株式会社 Manufacturing method for heat exchanger and manufacturing method for air conditioner
CN106918261B (en) * 2015-12-25 2022-03-08 浙江盾安热工科技有限公司 Fin and heat exchanger
JP6479252B2 (en) * 2016-02-24 2019-03-06 三菱電機株式会社 Heat exchanger
CN106524787B (en) * 2016-11-09 2018-08-07 广东芬尼克兹节能设备有限公司 A kind of free-floride heating sheet structure
JP6837397B2 (en) * 2017-07-21 2021-03-03 日立ジョンソンコントロールズ空調株式会社 Heat exchanger manufacturing method and multi-row heat exchanger
CN107421160B (en) * 2017-08-28 2020-11-10 华北电力大学(保定) High-efficient controllable cooling device
CN107484397A (en) * 2017-09-25 2017-12-15 陕西黄河集团有限公司 A kind of heat-pipe radiating apparatus and manufacturing process
DE102017217308A1 (en) * 2017-09-28 2019-03-28 Mahle International Gmbh Heat exchanger
FR3088711B1 (en) * 2018-11-16 2021-07-30 Valeo Systemes Thermiques MOTOR VEHICLE HEAT EXCHANGER
JP6776405B2 (en) * 2019-05-16 2020-10-28 三菱アルミニウム株式会社 Heat exchanger and manufacturing method of heat exchanger
CN112344763B (en) * 2019-08-07 2022-04-01 丹佛斯有限公司 Method for manufacturing heat exchanger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003214791A (en) * 2002-01-23 2003-07-30 Mitsubishi Electric Corp Heat exchanger
JP2003262485A (en) * 2002-03-07 2003-09-19 Mitsubishi Electric Corp Fin tube type heat exchanger, its manufacturing method, and refrigeration air conditioner
JP2003287390A (en) * 2002-03-27 2003-10-10 Mitsubishi Electric Corp Heat exchanger and air conditioner using this heat exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602186U (en) * 1983-06-20 1985-01-09 ダイキン工業株式会社 Heat exchanger with fins
JPH1089870A (en) * 1996-09-18 1998-04-10 Nippon Light Metal Co Ltd Manufacture of heat exchanger and heat exchanger
JPH10265882A (en) * 1997-03-25 1998-10-06 Mitsubishi Heavy Ind Ltd Aluminum alloy heat exchanger
JP2003200260A (en) * 2001-12-27 2003-07-15 Showa Denko Kk Method for brazing hollow body and tube body and method for manufacturing heat exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003214791A (en) * 2002-01-23 2003-07-30 Mitsubishi Electric Corp Heat exchanger
JP2003262485A (en) * 2002-03-07 2003-09-19 Mitsubishi Electric Corp Fin tube type heat exchanger, its manufacturing method, and refrigeration air conditioner
JP2003287390A (en) * 2002-03-27 2003-10-10 Mitsubishi Electric Corp Heat exchanger and air conditioner using this heat exchanger

Also Published As

Publication number Publication date
CN101769689B (en) 2012-07-18
JP5279514B2 (en) 2013-09-04
GB0912860D0 (en) 2009-08-26
GB2466687A (en) 2010-07-07
JP2010156525A (en) 2010-07-15
CN101769689A (en) 2010-07-07

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20120430

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20210723