US20060124274A1 - Heat exchanger for a refrigeration device - Google Patents

Heat exchanger for a refrigeration device Download PDF

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Publication number
US20060124274A1
US20060124274A1 US10/534,204 US53420403A US2006124274A1 US 20060124274 A1 US20060124274 A1 US 20060124274A1 US 53420403 A US53420403 A US 53420403A US 2006124274 A1 US2006124274 A1 US 2006124274A1
Authority
US
United States
Prior art keywords
sleeve
heat exchanger
exchanger according
base plate
brace
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.)
Abandoned
Application number
US10/534,204
Other languages
English (en)
Inventor
Detlef Cieslik
Thorsten Kusnik
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERATE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERATE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CIESLIK, DETLEF, KUSNIK, THORSTEN
Publication of US20060124274A1 publication Critical patent/US20060124274A1/en
Abandoned legal-status Critical Current

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
    • 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
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/10—Sensors measuring the temperature of the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives

Definitions

  • the present invention relates to a heat exchanger with a base plate, a tubular pipe for a coolant attached to the base plate and a sleeve arranged on the base plate for receiving a temperature sensor and a refrigeration device, fitted with such a heat exchanger.
  • a heat exchanger can be utilised in a refrigerating machine as liquefier, though in particular as evaporator.
  • a temperature sensor connected to a thermostat regulating circuit, is generally mounted on the evaporator.
  • This thermostat regulating circuit switches the refrigerating machine on and off, so that the temperature recorded by the temperature sensor remains in a set range.
  • the temperature recorded by the temperature sensor generally has systematic deviations from the actual temperature of the evaporator and follows those changes with a delay. These systematic deviations depend inter alia on the heat conductivity of the transition from the evaporator to the temperature sensor, from removing the temperature sensor from the coolant pipe of the evaporator etc.
  • the sleeve which is provided to receive the temperature sensor, when the evaporator is mounted in a refrigeration device, must have the same position in each evaporator with respect to the coolant pipe extending along the evaporator plate.
  • the reproducible positioning of the sleeve can be easily ensured with respect to the run of the coolant pipe, in that a coolant duct and a duct for receiving a temperature sensor are jointly stamped in one of the two sheets to be attached to one another of such an evaporator.
  • a technique is known e.g. from DE 39 28 471 C2.
  • it is not transferable to tube-plate evaporators, i.e. to evaporators, which are made up of an evaporator plate, on the surface whereof a tubular pipe for the coolant is attached.
  • Another option is to form a duct, by rolling up the base plate into a duct for the temperature sensor. In this way the position of the temperature sensor is fixed with respect to the base plate, yet this is so restricting that the temperature sensor can be positioned only at the edge of the base plate, thus in a region, which is subject to relatively strong interfering thermal influences from the outside and whereof the temperature allows a flux guide on the medium temperature of the base plate in only a limited way.
  • the object of the present invention is to provide a heat exchanger for a refrigeration device in tube plate technique, which allows reproducible positioning of a receiving sleeve for a temperature sensor simply and without the necessity of position measuring or adjustment.
  • a heat exchanger having the features of claim 1 .
  • the position of the sleeve is precisely fixed at a distance from the tubular pipe, which corresponds to the length of the brace by the sleeve of the surface of the evaporator plate is fixed by least one brace engaging on the tubular pipe in this heat exchanger.
  • the delay with which a temperature sensor mounted in the sleeve registers heating or cooling of the coolant pipe, is uniform for all evaporators manufactured in series with the same length of brace.
  • each brace has a clamping section for clamping on the tubular pipe. This enables rapid preliminary fixing of the sleeve on the base plate; definitive fixing, in particular by covering the side of the base plate bearing the tubular pipe and the sleeve by a covering layer or film, can take place at a later point in time.
  • the sleeve and at least one brace are designed monobloc, and preferably from a sheet metal blank made of a flat material such as in particular sheet metal.
  • the brace is made as a part separated from the sleeve and is clamped to the latter.
  • a brace can in particular have a first clamping section for clamping on the tubular pipe and a second clamping section for clamping on the sleeve.
  • the sleeve is preferably assigned at least two braces.
  • braces can extend out from the sleeve in the same direction, in particular to engage on the same straight pipe section, running parallel to the sleeve, but it can also extend out from the sleeve in opposite directions in order to engage on two different sections of the tubular pipe, extending on both sides of the sleeve.
  • the tubular pipe bears a marking at the point of application of at least one brace.
  • a marking can in particular be a notch or indentation, which has been pressed in during fastening of the tubular pipe on the evaporator plate at a preset point in the tubular pipe, and in which the clamping section of the brace can latch, so that it is secured against the tubular pipe slipping in a longitudinal direction.
  • the tubular pipe and the sleeve can be connected simply by an adhesive layer to the evaporator plate.
  • the tubular pipe and the sleeve are preferably enclosed between the evaporator plate on the one hand and a film of deformable material such as bitumen, plastic material or aluminium on the other hand.
  • FIG. 1 is a perspective view of an evaporator according to a first configuration of the invention
  • FIG. 2 is a section along line II-II from FIG. 1 ;
  • FIG. 3 is a perspective view of the sleeve incorporated in the evaporator of FIG. 1 ;
  • FIG. 4 is a view similar to FIG. 1 of a second configuration of an inventive evaporator
  • FIG. 5 is a section along line V-V of FIG. 4 ;
  • FIG. 6 is a perspective view of the sleeve used in the configuration of FIG. 4 ;
  • FIG. 7 is a perspective view of a variation of the sleeve of FIG. 6 .
  • the heat exchanger shown in perspective view in FIG. 1 and provided as evaporator for a refrigeration device is composed of a level base plate 1 of sheet aluminium, on which a coolant pipe 2 likewise comprising an aluminium pipe t is arranged in a meander.
  • the base plate 1 and the coolant pipe 2 are covered by a holding material layer 3 , which comprises e.g. a mixture of bitumen, additives for adjusting a desired heat capacity and/or heat conductivity of the holding material layer 3 and optionally other additives influencing the workability of the layer 3 .
  • the proportion of the bitumen on the layer 3 can be less than that of the additives.
  • the holding material layer 3 could also comprise a plastic material such as polyethylene, and if required with corresponding additives, or a strong aluminium foil.
  • the holding material layer 3 extends as far as into the panaches 4 , which lie on both sides of the contact line between the coolant pipe 2 and the base plate 1 and thus contributes substantially to efficient heat transfer between the base plate 1 and the coolant pipe 2 .
  • the coolant pipe 2 has a flattened elliptical cross-section, which can e.g. be obtained by an originally round coolant pipe being pressed flat after the base plate 1 is laid or during laying on the latter.
  • a layer 5 of hot-melt adhesive Located between the holding material layer 3 and the coolant pipe 2 on the one hand and the base plate 1 on the other hand is a layer 5 of hot-melt adhesive, which is recognisable in the figure merely as a line due to its substantially lesser thickness compared to the base plate 1 and the holding material layer 3 .
  • a duct 6 for receiving a temperature sensor is arranged in a cavity between two parallel sections of the coolant pipe 2 parallel thereto.
  • the duct 6 is formed by a sleeve 7 rolled from a sheet blank, and which is shown in FIG. 2 in section and in FIG. 3 in a perspective view.
  • the sheet blank, from which the sleeve 7 is formed has the form of a double Ts (or of the Greek letter n), whereby the crossbeams of the two Ts are rolled up into the sleeve 7 and the legs form two braces 8 , which keep the sleeve 7 at a preset distance from a section of the coolant pipe 2 parallel to the latter.
  • the braces 8 in each case have a straight intermediate section 10 , which sticks to the hot-melt layer 5 in the ready-mounted heat exchanger, and attached to the latter have a clamping section 9 in the form of a reversed U, whereof the two legs are clamped onto the coolant pipe 2 and in the process are elastically deformed.
  • this form of the sleeve 7 allows it to be placed at a distance preset by the length of the intermediate section 10 from the coolant pipe 2 , without having to measure up.
  • the clamping section 9 provides a provisory hold for the sleeve 7 on the sheet metal blank during assembly, before the holding material layer 3 has been placed and the hot-melt layer 5 has been heated in order to connect the holding material to the base plate 1 .
  • Provisory holding of the sleeve 7 on the coolant pipe 2 can naturally also be achieved using a single brace 8 . If the width of such a single brace were the same as the distance between the two longitudinal edges of the braces 8 averted from one another in FIG. 3 , the same precision of parallel alignment of the sleeve 7 with the coolant pipe 2 could also be achieved as with two braces. Yet the use of two parallel braces 8 is preferred, because the holding material layer 3 can be stuck on the hot-melt layer 5 in the cavity between the two braces 8 .
  • two depressions (not shown), whereof the width in each case corresponds to the width of one brace 8 and whereof the distance from one another corresponds to the distance of the braces 8 from one another, are pressed into the latter preferably on their side averted from the base plate 1 .
  • These two depressions can serve as reference for placing the sleeve 7 .
  • FIGS. 4 to 6 show views similar to FIGS. 1 to 3 .
  • the sleeve 7 is clamped tight on the coolant pipe 2 by way of two braces 8 , though the two braces 8 extend out from the sleeve 7 in each case in opposite directions and engage on two parallel sections of the coolant pipe 2 .
  • the structure of the braces 8 with intermediate piece 10 and clamping section 9 is the same as in the first configuration. Clamping on two parallel sections of the coolant pipe 2 at the same time prevents the sleeve 7 from coming loose again during assembly, if the base plate 1 is tipped before adhesion.
  • FIG. 7 A variant of this second configuration is shown in FIG. 7 .
  • the sleeve 7 and the braces 8 are not bent in one piece from sheet metal, rather the sleeve is formed by a pipe piece 11 , which is held pressed by a spring steel sheet strip the sheet metal blank 1 , in which the two braces 8 engaging on the coolant pipe 2 are designed.
  • the length of the sleeve in all configurations aligns with the length of a temperature sensor to be arranged therein, which is conventionally ca. 160 mm.
  • the composition of the heat exchanger is extensively the same in all three configurations.
  • a film is laid on the array of sheet metal blank 1 , coolant pipe 2 and sleeve 7 , and is provided to form the holding material layer 3 .
  • the film is pressed against the hot-melt layer 5 and heated at the same time so as to activate the hot-melt adhesive and thus to stick the film and the intermediate pieces 10 of the braces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Supports For Pipes And Cables (AREA)
US10/534,204 2002-11-11 2003-11-06 Heat exchanger for a refrigeration device Abandoned US20060124274A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10252345A DE10252345A1 (de) 2002-11-11 2002-11-11 Wärmetauscher für ein Kältegerät
DE10252345.2 2002-11-11
PCT/EP2003/012424 WO2004044507A1 (de) 2002-11-11 2003-11-06 Wärmetauscher für ein kältegerät

Publications (1)

Publication Number Publication Date
US20060124274A1 true US20060124274A1 (en) 2006-06-15

Family

ID=32115424

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/534,204 Abandoned US20060124274A1 (en) 2002-11-11 2003-11-06 Heat exchanger for a refrigeration device

Country Status (9)

Country Link
US (1) US20060124274A1 (es)
EP (1) EP1563236B1 (es)
CN (1) CN1711454A (es)
AT (1) ATE385560T1 (es)
AU (1) AU2003276269A1 (es)
DE (2) DE10252345A1 (es)
ES (1) ES2300656T3 (es)
PL (1) PL375188A1 (es)
WO (1) WO2004044507A1 (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008077749A1 (de) * 2006-12-22 2008-07-03 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
US20100326096A1 (en) * 2008-11-10 2010-12-30 Brent Alden Junge Control sytem for bottom freezer refrigerator with ice maker in upper door
US20110232326A1 (en) * 2008-12-02 2011-09-29 BSH Bosch und Siemens Hausgeräte GmbH Evaporator for a refrigerator
US9739546B2 (en) 2010-10-22 2017-08-22 Alfa Laval Corporate Ab Heat exchanger plate and a plate heat exchanger with insulated sensor internal to heat exchange area
EP3833922B1 (en) * 2018-08-09 2023-05-24 A. Raymond et Cie Heat exchanger and corresponding production method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005000857B4 (de) * 2005-01-05 2006-09-07 Rittal Gmbh & Co. Kg Fühlerisolation eines thermischen Expansionsventils
DE102011101343A1 (de) * 2011-05-12 2012-11-15 Liebherr-Hausgeräte Ochsenhausen GmbH Verdampferplatine
CN105890237A (zh) * 2016-05-27 2016-08-24 合肥太通制冷科技有限公司 一种冷藏蒸发器用蒸发板

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165733A (en) * 1977-03-31 1979-08-28 Olin Corporation Solar energy collector system
US4535600A (en) * 1984-04-16 1985-08-20 General Electric Company Temperature control for a cycle defrost refrigerator incorporating a roll-bonded evaporator
US4553530A (en) * 1983-05-17 1985-11-19 Kyocera Corporation Device for collecting solar heat
US6089146A (en) * 1998-12-21 2000-07-18 Mando Climate Control Corporation Temperature sensing device for food storage container

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB831556A (en) * 1957-05-09 1960-03-30 British Thermostat Co Ltd Improvements in or relating to thermostatic controls for refrigerators
JPS57210295A (en) * 1981-06-22 1982-12-23 Toshiba Corp Manufacture of heat exchanger
DE3928471A1 (de) * 1989-08-29 1991-03-14 Vdm Nickel Tech Verdampferplatine fuer eine kaelteanlage
JPH09250871A (ja) * 1996-03-19 1997-09-22 Matsushita Refrig Co Ltd サーモスタットの感熱管の取り付け構造
JPH11108764A (ja) * 1997-10-03 1999-04-23 Hoshizaki Electric Co Ltd 感温筒ホルダ
JPH11248543A (ja) * 1998-02-27 1999-09-17 Hoshizaki Electric Co Ltd 感温装置
DE19938773A1 (de) * 1999-08-16 2001-02-22 Bsh Bosch Siemens Hausgeraete Verdampfer für ein Haushaltskältegerät
KR100364909B1 (ko) * 1999-12-30 2002-12-16 만도공조 주식회사 김치 저장고의 온도센서 장착구조

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165733A (en) * 1977-03-31 1979-08-28 Olin Corporation Solar energy collector system
US4553530A (en) * 1983-05-17 1985-11-19 Kyocera Corporation Device for collecting solar heat
US4535600A (en) * 1984-04-16 1985-08-20 General Electric Company Temperature control for a cycle defrost refrigerator incorporating a roll-bonded evaporator
US6089146A (en) * 1998-12-21 2000-07-18 Mando Climate Control Corporation Temperature sensing device for food storage container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008077749A1 (de) * 2006-12-22 2008-07-03 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
US20100071403A1 (en) * 2006-12-22 2010-03-25 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigerator
US20100326096A1 (en) * 2008-11-10 2010-12-30 Brent Alden Junge Control sytem for bottom freezer refrigerator with ice maker in upper door
US20110232326A1 (en) * 2008-12-02 2011-09-29 BSH Bosch und Siemens Hausgeräte GmbH Evaporator for a refrigerator
CN102239373A (zh) * 2008-12-02 2011-11-09 Bsh博世和西门子家用电器有限公司 用于冰箱的蒸发器
US9739546B2 (en) 2010-10-22 2017-08-22 Alfa Laval Corporate Ab Heat exchanger plate and a plate heat exchanger with insulated sensor internal to heat exchange area
EP3833922B1 (en) * 2018-08-09 2023-05-24 A. Raymond et Cie Heat exchanger and corresponding production method

Also Published As

Publication number Publication date
WO2004044507A1 (de) 2004-05-27
AU2003276269A1 (en) 2004-06-03
DE50309133D1 (de) 2008-03-20
CN1711454A (zh) 2005-12-21
ATE385560T1 (de) 2008-02-15
EP1563236B1 (de) 2008-02-06
EP1563236A1 (de) 2005-08-17
ES2300656T3 (es) 2008-06-16
PL375188A1 (en) 2005-11-28
DE10252345A1 (de) 2004-05-19

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AS Assignment

Owner name: BSH BOSCH UND SIEMENS HAUSGERATE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CIESLIK, DETLEF;KUSNIK, THORSTEN;REEL/FRAME:017022/0312

Effective date: 20050627

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION