EP0447763A1 - Condensateur à plaques pour machine frigorifique, en particulier pour un réfrigérateur domestique - Google Patents

Condensateur à plaques pour machine frigorifique, en particulier pour un réfrigérateur domestique Download PDF

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Publication number
EP0447763A1
EP0447763A1 EP91101172A EP91101172A EP0447763A1 EP 0447763 A1 EP0447763 A1 EP 0447763A1 EP 91101172 A EP91101172 A EP 91101172A EP 91101172 A EP91101172 A EP 91101172A EP 0447763 A1 EP0447763 A1 EP 0447763A1
Authority
EP
European Patent Office
Prior art keywords
pipeline
metal plate
plate
sheet metal
bead
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Withdrawn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
EP91101172A
Other languages
German (de)
English (en)
Inventor
Horst Lingemann
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.)
Helmut Lingemann GmbH and Co KG
Original Assignee
Helmut Lingemann GmbH and Co KG
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 Helmut Lingemann GmbH and Co KG filed Critical Helmut Lingemann GmbH and Co KG
Publication of EP0447763A1 publication Critical patent/EP0447763A1/fr
Withdrawn legal-status Critical Current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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F28F1/14—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 longitudinally
    • F28F1/22—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 longitudinally the means having portions engaging further tubular 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/045—Condensers made by assembling a tube on a plate-like element or between plate-like elements
    • 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
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the invention relates to a plate condenser according to the preamble of claim 1.
  • a refrigerator is a stationary or movable device for cooling closed rooms and solid, liquid or gaseous bodies accommodated therein to a predetermined temperature which is lower than the temperature of the surroundings. To do this, heat has to be extracted from the body and released into the environment.
  • the latter is used by a plate condenser, with the heat being carried by a refrigerant (Frigen) that circulates in the pipe condenser of the plate condenser.
  • Frigen refrigerant
  • the essential components of a plate liquefier are a plate-like sheet or a sheet metal plate and a cooling pipe running in the form of a cooling coil, which is fastened to one of the two broad side surfaces of the sheet metal plate.
  • the purpose of the sheet metal plate is to improve the heat transfer between the pipeline and the environment. Good heat transfer between the pipeline and the sheet metal plate and between the latter and the environment is therefore desirable.
  • the pipeline is soldered or glued to the sheet metal plate.
  • soldering is advantageous because a solder is usually a is a good heat conductor and there is a fairly large metallic cross-section when soldering, through which a good heat transfer can take place. Soldering is labor and material intensive and makes the product very expensive. Soldering under heat can also cause distortion and tension on the plate condenser, which is undesirable.
  • the invention has for its object to provide a plate condenser with simple means, in which a good heat transfer between the pipeline and the sheet metal plate is ensured and the assembly of the pipeline on the sheet metal plate is simple.
  • the pipeline is held in a form-fitting manner on the sheet metal plate by holding tongues which grip over the pipeline and press against the sheet metal plate or hold it in contact with the sheet metal plate.
  • the pipeline is received in a corrugation pressed into the sheet metal plate, the course and cross-sectional shape or size of which is adapted to the pipeline in such a way that the pipeline in its position inserted in the corrugation with its surface area facing the sheet metal plate on the trough-shaped surface of the corrugation lies flat.
  • the fastening according to the invention can also be produced simply and inexpensively, since the bead is pressed in quickly and easily with an appropriate embossing or pressing tool and the Retaining tabs, in particular as stamped / bent parts, can also be produced simply and quickly and can be fastened to the sheet metal plate in a position spanning the pipeline, for example by screws or the like.
  • the retaining tabs are preferably formed by retaining tongues which are cut or cut in one piece in the sheet metal plate by means of a suitable punching / bending tool, bent up and bent against the pipeline after the pipeline has been inserted into the bead. Since the retaining tongues are formed in one piece from the sheet metal plate, no additional fastening part is required, which gives a further advantage.
  • the plate condenser according to the invention is a releasable fastening between the pipeline and the sheet metal plate.
  • the pipe can be detached from the sheet metal plate by bending up the retaining tongues, and if one of the two parts is damaged, it can be replaced quickly and easily.
  • the plate condenser 1 consists of a plate or plate-shaped Sheet 2 in preferably rectangular or square shape, on one broad side surface, according to FIG. 1 the upper broad side surface 3, a pipe 5 forming a cooling coil 4 of approximately 4 to 6 mm in diameter rests and is fastened thereto. On the other broad side surface of the sheet metal plate 2 facing away from the pipeline 5 there is a black coating which promotes heat emission.
  • the sheet metal plate 2 and the pipeline 5 are made of aluminum or an alloy.
  • the plate condenser 1 is designed for a household refrigerator (domestic appliance) and is in the installed position on the rear of the refrigerator in a vertical position, the wide side surface of the plate condenser 1 carrying the pipeline 5 facing the refrigerator, while the broad side surface bearing the coating is from Refrigerator is turned away.
  • the sheet metal plate 2 in Fig. 1 is shown resting on its rear broad side surface, so that the front broad side surface 3 carrying the pipeline 5 faces upward.
  • the four edges of the rectangular sheet metal plate 2 are designated 6, 7a, 7b and 8.
  • the edge 6 is the horizontal lower edge
  • the edges 7a, 7b are vertical side edges
  • the edge 8 is the horizontal upper edge.
  • the pipe 5 extends with a pipe section 5a straight and close and parallel to the edge 7b up to the vicinity of the edge 8, where it is bent at right angles to the opposite edge 7a and extends in meandering loops 9 to the vicinity of the edge 6 .
  • the loops 9 each consist of two horizontal loop flanks 11, which have a parallel spacing from one another, and an end bend 12 which connects mutually mutually associated loop flanks 11 to one another in the longitudinal direction of the pipeline 5.
  • the pipe section 5a projects beyond a straight end 13, the edge 6.
  • the other end 14 of the pipe 5 is of the Edge 6 closest to loop edge 11 is bent at right angles to edge 6, and it projects beyond edge 6, being arranged parallel and close to end 13.
  • a bead 15 or a bead-shaped groove is pressed into the broad side surface 3, the course of which is adapted to the shape of the extension of the pipeline 5 and the bead bottom surface 16 of which is adapted to the peripheral shape of the pipeline 5.
  • the pipeline 5 has a circular cross section and the bead bottom surface 16 is shaped in its cross section in accordance with the circular shape of the pipeline 5, i.e. the radii of the pipeline 5 and the bead surface 16 are the same.
  • the depth of the bead 15 is equal to or less than half the outer diameter of the pipeline 5. Because of this configuration, the pipeline 5 lies against the bead bottom surface 16 over its entire length, with a large-area contact.
  • the pipeline 5 is held by holding tabs 17 in its position in the bead 15 on the sheet metal plate 2 and on the bead bottom surface 16.
  • Each loop 9 is held by three holding tabs 17, one holding tab each being arranged in the central region of the loop flanks 11 and the end arches 12.
  • the pipe section 5a is held with three retaining tabs 17 which are distributed over its length.
  • the end 14 arranged next to the end 13 of the pipe section 5a is also held near the lower edge by a retaining tab 17.
  • the retaining tabs 17 are formed by integral tongues 19 connected to the sheet metal plate 2, which are cut or cut into the sheet metal plate 2 prior to assembly and bent out approximately at right angles to the side of the sheet metal plate 2 on which the pipeline 5 is to be arranged.
  • the holding tongues 19 are arranged on the inside or outside of the bead 15 with respect to the loops 9. They can also be arranged alternately in the longitudinal direction of the bead 15.
  • the connection points of the Retaining tongues 19 or their bending lines 19a are arranged in such a way that the bent-out retaining tongues 19 touch the pipeline 5 inserted into the bead 15 or are at a short distance therefrom.
  • the pipe 5 is inserted into the bead 15, and then the retaining tongues 19 are bent against the pipe 5 so that they overlap the pipe 5 and thereby hold positively in the bead 15 and in contact with the bead surface 16 .
  • the holding tongues 19 are dimensioned so long that they encompass the pipeline 5, preferably by almost 180 °, whereby they bend against the circumferential surface of the pipeline 5 during bending and are thereby curved in accordance with the curvature of the circumferential surface of the pipeline 5.
  • the holding tongues 19 are preferably cut out of the sheet metal plate 2 with a U-shaped incision or free cut, the U-legs of which extend transversely to the bead 15. This preferably results in a rectangular shape for the holding tongues 19.
  • the incisions or free cuts are preferably arranged such that they cross the bead 15. This is advantageous because the incisions or cutouts 21 are largely covered by the pipeline 5 or the retaining tongues 19 in the assembled position.
  • the design described above can be produced simply and inexpensively because the bead 15 can be pressed in quickly and easily using a suitable tool.
  • the holding tongues 19 can also be produced easily, quickly and preferably in one operation using a suitable stamping / bending tool. After inserting the pipeline 5 into the bead 15, all that is required is to bend the retaining tongues 19, which can be done quickly and easily in a simple manner using an appropriate tool.
  • the incisions or free cuts or the recesses 21 delimited by them intersect the bead 15, so that this is interrupted by the recesses 21.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Laminated Bodies (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Press Drives And Press Lines (AREA)
  • Supports For Pipes And Cables (AREA)
EP91101172A 1990-03-21 1991-01-30 Condensateur à plaques pour machine frigorifique, en particulier pour un réfrigérateur domestique Withdrawn EP0447763A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9003342U DE9003342U1 (de) 1990-03-21 1990-03-21 Plattenverflüssiger für eine Kühlmaschine, insbesondere für einen Haushalts-Kühlschrank
DE9003342U 1990-03-21

Publications (1)

Publication Number Publication Date
EP0447763A1 true EP0447763A1 (fr) 1991-09-25

Family

ID=6852225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101172A Withdrawn EP0447763A1 (fr) 1990-03-21 1991-01-30 Condensateur à plaques pour machine frigorifique, en particulier pour un réfrigérateur domestique

Country Status (7)

Country Link
EP (1) EP0447763A1 (fr)
CA (1) CA2037074A1 (fr)
CS (1) CS74491A2 (fr)
DE (1) DE9003342U1 (fr)
FI (1) FI911258A (fr)
NO (1) NO910673L (fr)
PL (1) PL289486A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698771A1 (fr) * 1994-08-22 1996-02-28 LIEBHERR-HAUSGERÄTE GmbH Congélateur
WO1997029335A1 (fr) * 1996-02-08 1997-08-14 Condenser Italiana S.R.L. Echangeur de chaleur pour appareils de refrigeration, pour machines frigorifiques a usage menager notamment
DE10234238B4 (de) * 2001-07-25 2020-09-17 Vaillant Gmbh Wärmetauscher

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD20050385A (ro) * 2005-12-22 2007-08-31 Технический университет Молдовы Condensator pentru frigiderul de uz casnic
US20170363356A1 (en) * 2016-06-17 2017-12-21 Palomar Technologies, Inc. Apparatus For Rapid Cooling Of Substrates Utilizing A Flat Plate And Cooling Channels
CN107624021B (zh) * 2017-09-06 2019-10-01 阜阳市风雅颂生产力促进中心有限责任公司 一种新能源汽车充电桩的整体散热装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585043A (en) * 1948-07-02 1952-02-12 Houdaille Hershey Corp Heat exchanger
GB769929A (en) * 1954-12-14 1957-03-13 Porter & Co Salford Ltd T Improvements in and relating to heat exchangers
US3211215A (en) * 1961-02-01 1965-10-12 Gen Motors Corp Heat exchangers suitable for space use
FR2094055A1 (fr) * 1970-06-04 1972-02-04 Benteler Werke Ag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801744U (de) * 1959-07-11 1959-12-10 Eisfink Carl Fink O H G Tischkuehlschrank.
DE1426947A1 (de) * 1964-09-18 1969-04-30 Danfoss As Fa Kaeltemittelverdampfer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585043A (en) * 1948-07-02 1952-02-12 Houdaille Hershey Corp Heat exchanger
GB769929A (en) * 1954-12-14 1957-03-13 Porter & Co Salford Ltd T Improvements in and relating to heat exchangers
US3211215A (en) * 1961-02-01 1965-10-12 Gen Motors Corp Heat exchangers suitable for space use
FR2094055A1 (fr) * 1970-06-04 1972-02-04 Benteler Werke Ag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698771A1 (fr) * 1994-08-22 1996-02-28 LIEBHERR-HAUSGERÄTE GmbH Congélateur
WO1997029335A1 (fr) * 1996-02-08 1997-08-14 Condenser Italiana S.R.L. Echangeur de chaleur pour appareils de refrigeration, pour machines frigorifiques a usage menager notamment
DE10234238B4 (de) * 2001-07-25 2020-09-17 Vaillant Gmbh Wärmetauscher

Also Published As

Publication number Publication date
DE9003342U1 (de) 1991-07-25
FI911258A (fi) 1991-09-22
CA2037074A1 (fr) 1991-09-22
CS74491A2 (en) 1991-11-12
FI911258A0 (fi) 1991-03-14
NO910673D0 (no) 1991-02-20
NO910673L (no) 1991-09-23
PL289486A1 (en) 1992-02-24

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