EP1642079A1 - Evaporateur - Google Patents

Evaporateur

Info

Publication number
EP1642079A1
EP1642079A1 EP04747536A EP04747536A EP1642079A1 EP 1642079 A1 EP1642079 A1 EP 1642079A1 EP 04747536 A EP04747536 A EP 04747536A EP 04747536 A EP04747536 A EP 04747536A EP 1642079 A1 EP1642079 A1 EP 1642079A1
Authority
EP
European Patent Office
Prior art keywords
lower tank
grooves
evaporator
top surface
groove
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Withdrawn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
EP04747536A
Other languages
German (de)
English (en)
Other versions
EP1642079A4 (fr
Inventor
Naohisa c/o SHOWA DENKO K.K. HIGASHIYAMA
Sumitaka c/o Showa Denko K.K. WATANABE
Shinobu c/o SHOWA DENKO K.K. YAMAUCHI
Daisuke c/o Showa Denko K.K. MORI
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.)
Mahle Behr Thermal Systems Japan Ltd
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Publication of EP1642079A1 publication Critical patent/EP1642079A1/fr
Publication of EP1642079A4 publication Critical patent/EP1642079A4/fr
Withdrawn legal-status Critical Current

Links

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
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from 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
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • 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
    • 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
    • F25B39/022—Evaporators with plate-like or laminated elements
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0085—Evaporators

Definitions

  • the present invention relates to evaporators, and more particularly to an evaporator comprising a heat exchange core comprising a plurality of tube groups arranged in rows as spaced forwardly or rearwardly of the evaporator and each comprising a plurality of heat exchange tubes arranged in parallel at a spacing laterally of the evaporator, and a lower tank disposed at the lower end of the core and having connected thereto the lower ends of the heat exchange tubes providing the tube groups .
  • a heat exchange core comprising a plurality of tube groups arranged in rows as spaced forwardly or rearwardly of the evaporator and each comprising a plurality of heat exchange tubes arranged in parallel at a spacing laterally of the evaporator, and a lower tank disposed at the lower end of the core and having connected thereto the lower ends of the heat exchange tubes providing the tube groups .
  • evaporators which comprise a pair of upper and lower tanks arranged as spaced apart vertically, and a plurality of tube groups arranged in two rows as spaced apart forwardly or rearwardly of the evaporator between the pair of tanks and each comprising a plurality of heat exchange tubes arranged in parallel at a spacing laterally of the evaporator, the heat exchange tubes of each tube group having upper and lower ends connected respectively to the upper and lower tanks , a louvered corrugated fin being disposed in an air passing clearance between each adjacent pair of heat exchange tubes of each tube group, the lower tank having a horizontal flat top wall (see, for example, the publication of JP-A No. 2001-324290).
  • An object of the present invention is to overcome the above problem and to provide an evaporator which is reduced in the amount of water condensate that will collect on the top wall of the lower tank.
  • each of the grooves includes a first portion existing on the lower tank top surface, and the first portion has a groove width gradually increasing from a bottom of the groove toward an opening thereof.
  • a refrigeration cycle comprising a compressor, a condenser and an evaporator, the evaporator comprising an evaporator described in the above para. 1) or 23) . 3,6) A vehicle having installed therein a refrigeration cycle described in the above para. 35) as an air conditioner.
  • the present invention further includes the followingmodes .
  • FIG. 1 is a perspective view showing the overall construction of an evaporator embodying the invention.
  • FIG. 1 is a perspective view showing the overall construction of an evaporator embodying the invention.
  • the resistance plate 17 has laterally elongated refrigerant passing through holes 18, 18A formed therein in a rear portion thereof other than the left and right end portions of the plate and arranged at spacing laterally thereof.
  • the refrigerant passing hole 18A in the lateral midportion of the plate 17 has a length smaller than the spacing between adjacent heat exchange tubes 4 of the rear tube group 5, and is formed between the adjacent two heat exchange tubes 4 in the lateral middle of the rear tube group 5.
  • the other refrigerant passing holes 18 have a larger length than the hole 18A.
  • the resistance plate 17 is provided at a rear edge portion of its lower surface with a downwardly projecting ridge 17a integral therewith and extending over the entire length thereof.
  • the projections 38a and the cutouts 38b are formed by cutting away specified portions of the intermediate wall 38.
  • the upper and lower members 31, 32 are brazed to each other with the projections 38a of the lower member 32 inserted through the respective holes 35 in crimping engagement with the member 31 and with the depending walls 31a of the upper member 31 engaged with the ridges 36a, 37a of the lower member 32.
  • the portion of the resulting assembly forwardly of the intermediate wall 38 of the lower member 32 serves as a refrigerant inflow header 41, and the portion thereof rearward from the intermediate wall 38 as a refrigerant outflow header 42.
  • the interior of the inflowheader 41 is held in communication with that of the outflow header 42 by the cutouts 38b.
  • each forwardly or rearwardly adjacent pair of heat exchange tubes 4 have their intermediate portions (with respect to the direction of thickness of the tubes 4, i.e., lateral direction) connected together by a fastening plate member 65 as shown in FIGS. 16 and 17, whereby a drain channel 66 is provided between the front and rear adjacent tubes 4 on each of left and right sides of the fastening member.
  • the fastening member 65 is extruded integrally with the front and rear heat exchange tubes 4, whereas a member separate from the front and rear tubes 4 may alternatively be used for and brazed to the two tubes 4 to thereby provide a drain channel between the front and rear tubes 4 on each of opposite sides of the brazed member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Evaporateur (1) comprenant un noyau échangeur de chaleur (10) comportant une pluralité de groupes de tubes (5) disposés en rangée et éloignés vers l'avant ou vers l'arrière par rapport à l'évaporateur, chacun possédant une pluralité de tubes d'échange de chaleur (4) disposés en parallèle au niveau d'un espacement latéral par rapport à l'évaporateur, et un réservoir inférieur (3) situé à une extrémité inférieure du noyau (10) et auquel sont reliées les extrémités inférieures des tubes d'échange de chaleur (4) constituant les groupes de tubes (5). Le réservoir inférieur (3) possède une surface supérieure (3a), des surfaces latérales opposées avant et arrière (3b) et une surface inférieure (3c). Ce réservoir inférieur (3) présente, dans chacune de ses parties latérales opposées avant et arrière, des rainures (29) placées entre les paires latérales contiguës respectives des tubes d'échange de chaleur (4) et s'étendant depuis une partie intermédiaire de la surface supérieure (3a) par rapport au sens dirigé vers l'avant ou vers l'arrière de la surface latérale (3b) afin de provoquer l'écoulement du condensat d'eau à travers ladite surface. Chacune de ces rainures (29) possède une première partie (29a) située sur la surface supérieure (3a) du réservoir inférieur et une face inférieure s'abaissant graduellement depuis la partie intermédiaire de la surface supérieure (3a) vers le bord latéral avant ou arrière de ladite surface. La quantité de condensat d'eau qui se déposera sur la surface supérieure (3a) du réservoir inférieur (3) de l'évaporateur (1) peut être diminuée.
EP20040747536 2003-07-08 2004-07-08 Evaporateur Withdrawn EP1642079A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003272039 2003-07-08
US48689903P 2003-07-15 2003-07-15
PCT/JP2004/010070 WO2005003671A1 (fr) 2003-07-08 2004-07-08 Evaporateur

Publications (2)

Publication Number Publication Date
EP1642079A1 true EP1642079A1 (fr) 2006-04-05
EP1642079A4 EP1642079A4 (fr) 2012-05-23

Family

ID=33566822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040747536 Withdrawn EP1642079A4 (fr) 2003-07-08 2004-07-08 Evaporateur

Country Status (4)

Country Link
EP (1) EP1642079A4 (fr)
KR (1) KR20060029179A (fr)
AU (1) AU2004254508A1 (fr)
WO (1) WO2005003671A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4275182B2 (ja) * 2007-11-02 2009-06-10 シャープ株式会社 熱交換器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002147992A (ja) * 2000-11-09 2002-05-22 Zexel Valeo Climate Control Corp 熱交換器
JP2003075024A (ja) * 2001-06-18 2003-03-12 Showa Denko Kk 蒸発器、その製造方法、蒸発器用ヘッダー部材及び冷凍システム
EP1558788A1 (fr) * 2002-10-30 2005-08-03 Showa Denko K.K. Echangeur thermique, element tubulaire d'echangeur thermique, element a ailettes d'echangeur thermique et procede de fabrication de l'echangeur thermique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11101594A (ja) * 1997-09-26 1999-04-13 Toyo Radiator Co Ltd 空調用熱交換器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002147992A (ja) * 2000-11-09 2002-05-22 Zexel Valeo Climate Control Corp 熱交換器
JP2003075024A (ja) * 2001-06-18 2003-03-12 Showa Denko Kk 蒸発器、その製造方法、蒸発器用ヘッダー部材及び冷凍システム
EP1558788A1 (fr) * 2002-10-30 2005-08-03 Showa Denko K.K. Echangeur thermique, element tubulaire d'echangeur thermique, element a ailettes d'echangeur thermique et procede de fabrication de l'echangeur thermique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005003671A1 *

Also Published As

Publication number Publication date
AU2004254508A1 (en) 2005-01-13
WO2005003671A1 (fr) 2005-01-13
KR20060029179A (ko) 2006-04-04
EP1642079A4 (fr) 2012-05-23

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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A4 Supplementary search report drawn up and despatched

Effective date: 20120420

RIC1 Information provided on ipc code assigned before grant

Ipc: F28F 9/02 20060101ALI20120416BHEP

Ipc: F25B 39/02 20060101ALI20120416BHEP

Ipc: F28F 17/00 20060101AFI20120416BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KEIHIN THERMAL TECHNOLOGY CORPORATION

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Effective date: 20130102

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