FR2608747A3 - Heat-exchanger, particularly a condenser for refrigerating circuits - Google Patents

Heat-exchanger, particularly a condenser for refrigerating circuits Download PDF

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Publication number
FR2608747A3
FR2608747A3 FR8717715A FR8717715A FR2608747A3 FR 2608747 A3 FR2608747 A3 FR 2608747A3 FR 8717715 A FR8717715 A FR 8717715A FR 8717715 A FR8717715 A FR 8717715A FR 2608747 A3 FR2608747 A3 FR 2608747A3
Authority
FR
France
Prior art keywords
parts
plate
coil
straight
condenser
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.)
Granted
Application number
FR8717715A
Other languages
French (fr)
Other versions
FR2608747B3 (en
Inventor
Umberto De Bernardi
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2608747A3 publication Critical patent/FR2608747A3/en
Application granted granted Critical
Publication of FR2608747B3 publication Critical patent/FR2608747B3/en
Expired 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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings
    • 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

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)
  • General Induction Heating (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

Heat-exchanger, particularly a condenser for a refrigerating circuit, comprising a pipe coil 10 and a profiled heat-dissipating plate 13, the said plate having parts with fins 15 and substantially flat parts 14 separating the parts with fins, while the pipe coil has straight parts 11 fixed to the substantially flat parts of the plate, characterised in that each flat part 14 has two straight longitudinal grooves 16 between which, in lateral cross-section, there is formed a small circular part 17, each straight part 11 of the pipe coil 10 being fixed by spot welding to this small circular part 17.

Description

'Echangeur de chaleur, nota ment un condenseur pour des circuits de
réfrigération."
L'invention concerne un échangeur de chaleur comportant un serpentin et une plaque profilée de dissipation de chaleur, ladite plaque présentant des parties à ailettes et des parties sensiblement plates séparant les parties à ailettes, alors que le serpentin présente des parties droites fixées aux parties sensiblement plates de la plaque. De préférence, l'invention concerne notanent, mais non exclusivement, un condenseur destiné à des circuits de réfrigération de réfrigérateurs ménagers et monté sur la paroi arrière de la carrosserie du réfrigérateur et le long de celle-ci.'' Heat exchanger, in particular a condenser for heating circuits
refrigeration."
The invention relates to a heat exchanger comprising a coil and a profiled heat dissipation plate, said plate having fin portions and substantially flat portions separating the fin portions, while the coil has straight portions attached to the substantially portions plates of the plate. Preferably, the invention relates in particular, but not exclusively, to a condenser intended for refrigeration circuits of household refrigerators and mounted on the rear wall of the body of the refrigerator and along it.

En ce qui concerne notamment, mais non exclusivement, le domaine des réfrigérateurs ménagers, les condenseurs normalement utilisés comportent un serpentin à travers lequel circule le fluide réfrigérant à refroidir et qui est solidaire d'une plaque nétallique profilée à ailettes faisant fonction d'élément de dissipation de chaleur. With regard in particular, but not exclusively, to the field of household refrigerators, the condensers normally used comprise a coil through which the refrigerant to be cooled circulates and which is integral with a profiled metallic plate with fins acting as an element of heat dissipation.

Conformément à un procédé connu, le serpentin est lié rigidement à la plaque par déformation sélective de celle-ci de façon qu'elle entoure et serre les parties droites du serpentin, comme le montre la figure 1 qui représente une coupe transversale partielle drun condenseur du type précité et sur lequel la référence 1 indique une partie droite du serpentin, la référence 2 la plaque de dissipation de chaleur, la référence 3 les ailettes et la référence 4 la partie de plaque déformée entourant et serrant ladite partie droite du serpentin. According to a known method, the coil is rigidly linked to the plate by selective deformation of the latter so that it surrounds and clamps the straight parts of the coil, as shown in FIG. 1 which represents a partial cross section of a condenser of the aforementioned type and on which the reference 1 indicates a straight part of the coil, the reference 2 the heat dissipation plate, the reference 3 the fins and the reference 4 the part of deformed plate surrounding and clamping said straight part of the coil.

Dans une autre construction connue du condenseur, telle que représentée sur la coupe transversale de la figure 2, les parties droites 1A du serpentin sont fixées à la plaque de dissipation de chaleur 2A, entre une déformation semi-cylindrique 4A de celle-ci, munie d'ailettes 3A, et une déformation semicylindrique SA d'une plaque de recouvrement 6A fixée à la plaque 2A par soudage ou par rivetage.  In another known construction of the condenser, as shown in the cross section of Figure 2, the straight parts 1A of the coil are fixed to the heat dissipation plate 2A, between a semi-cylindrical deformation 4A thereof, provided fins 3A, and a semi-cylindrical deformation SA of a cover plate 6A fixed to the plate 2A by welding or by riveting.

Les deux constructions décrites présentent deux inconvénients, à savoir: a) une consommation excessive de matériau pour la plaque à ailettes (due à la nécessité de prévoir la déformation 4, 4A) et pour la plaque de recouvrement éventuelle (6B dans le cas de la figure 2); b) la conductibilité thermique entre le serpentin et la plaque à ailettes n'est pas toujours très bonne à cause du contact imparfait entre le serpentin et son siège dans la plaque à ailettes. The two constructions described have two drawbacks, namely: a) excessive consumption of material for the fin plate (due to the need to provide for deformation 4, 4A) and for the possible covering plate (6B in the case of the Figure 2); b) the thermal conductivity between the coil and the fin plate is not always very good because of the imperfect contact between the coil and its seat in the fin plate.

L'invention vise à fournir un condenseur du type décrit, permettant une économie considérable de matériau pour des conditions de fonctionnement égales. The invention aims to provide a condenser of the type described, allowing considerable savings in material for equal operating conditions.

Conformément à l'invention, l'échangeur de chaleur est caractérisé en ce que chaque partie plate présente deux gorges longitudinales droites entre lesquelles en section transversale latérale, est formée une petite partie circulaire chaque partie droite du serpentin étant fixée par soudure par points à cette petite partie circulaire. According to the invention, the heat exchanger is characterized in that each flat part has two straight longitudinal grooves between which in lateral transverse section, a small circular part is formed each straight part of the coil being fixed by spot welding to this small circular part.

La description suivante, en regard du dessin annexé, permettra de mieux comprendre comment l'invention est réalisée. The following description, with reference to the appended drawing, will allow a better understanding of how the invention is implemented.

Les figures 1 et 2, déjà décrites, sont des coupes transversales partielles de deux condenseurs conventionnels. Figures 1 and 2, already described, are partial cross sections of two conventional condensers.

La figure 3 est une vue partielle en perspective d'un condenseur conforme à l'invention. Figure 3 is a partial perspective view of a condenser according to the invention.

La figure 4 est une coupe transversale suivant la ligne
IV-IV de la figure 3.Figure 4 is a cross section along the line
IV-IV of figure 3.

En référence aux figures 3 et 4, le condenseur conforme à l'invention comporte un serpentin 10 constitué de parties droites Il liées entre elles par des parties courbées 12, et une plaque profilée de dissipation de chaleur 13. La plaque 13 présente des parties sensiblement plates 14 qui sont parallèles les unes aux autres et qui alternent avec des parties 15 présentant des ailettes obtenues de façon connue par coupe et par pliage de la plaque. Chaque partie plate 14 présente deux gorges longitudinales 16 qui sont séparées par une petite partie circulaire 17 formée par une partie de paroi de chaque gorge. Chaque serpentin 10 est fixé par soudure par points à la petite partie circulaire 17. Referring to Figures 3 and 4, the condenser according to the invention comprises a coil 10 consisting of straight parts II linked together by curved parts 12, and a profiled heat dissipation plate 13. The plate 13 has parts substantially plates 14 which are parallel to each other and which alternate with parts 15 having fins obtained in a known manner by cutting and folding the plate. Each flat part 14 has two longitudinal grooves 16 which are separated by a small circular part 17 formed by a wall part of each groove. Each coil 10 is fixed by spot welding to the small circular part 17.

De cette façon, on évite l'utilisation des déformations à grande surface exigées par des procédés conventionnels ou l'utilisation de pièces de recouvrement telles que celles indiquées par la référence 5A sur la figure 2, de sorte qu'on obtient une économie considérable de matériaux pour des conditions de fonctionnement égales. De plus, dans certaines circonstances, on obtient une transmission thermique améliorée entre le serpentin et la plaque, ce qui permet une économie supplémentaire de matériaux pour des conditions de fonctionnement égales.  In this way, the use of the large-surface deformations required by conventional methods or the use of covering parts such as those indicated by the reference 5A in FIG. 2 is avoided, so that a considerable saving is obtained. materials for equal operating conditions. In addition, in certain circumstances, an improved thermal transmission is obtained between the coil and the plate, which allows an additional saving of materials for equal operating conditions.

Claims (2)

REVENDICATIONS:CLAIMS: 1. Echangeur de chaleur, notamment un condenseur pour un circuit de réfrigération, comportant un serpentin (10) et une plaque profilée de dissipation de chaleur (13), ladite plaque présentant des parties à ailettes (15) et des parties sensiblement plates (14) séparant les parties à ailettes, alors que le serpentin présente des parties droites (11) fixées aux parties sensiblement plates de la plaque, caractérisé en ce que chaque partie plate (14) présente deux gorges longitudinales droites (16) entre lesquelles, en section transversale latérale, est formée une petite partie circulaire (17), chaque partie droite (11) du serpentin (10) étant fixée par soudure par points à cette petite partie circulaire (17).1. Heat exchanger, in particular a condenser for a refrigeration circuit, comprising a coil (10) and a profiled plate for heat dissipation (13), said plate having parts with fins (15) and parts which are substantially flat (14 ) separating the winged parts, while the coil has straight parts (11) fixed to the substantially flat parts of the plate, characterized in that each flat part (14) has two straight longitudinal grooves (16) between which, in section lateral transverse, a small circular part (17) is formed, each straight part (11) of the coil (10) being fixed by spot welding to this small circular part (17). 2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que chaque petite partie circulaire (17) est formée par une partie de paroi de chaque gorge (16). 2. Heat exchanger according to claim 1, characterized in that each small circular part (17) is formed by a wall part of each groove (16).
FR8717715A 1986-12-19 1987-12-18 HEAT EXCHANGER, IN PARTICULAR A CONDENSER FOR REFRIGERATION CIRCUITS Expired FR2608747B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2414386U IT209055Z2 (en) 1986-12-19 1986-12-19 HEAT EXCHANGER WITH COIL WELDED ON A SHAPED THERMAL-DISPERSING SHEET, IN PARTICULAR CONDENSER OF REFRIGERANT CIRCUITS.

Publications (2)

Publication Number Publication Date
FR2608747A3 true FR2608747A3 (en) 1988-06-24
FR2608747B3 FR2608747B3 (en) 1989-01-13

Family

ID=11212204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8717715A Expired FR2608747B3 (en) 1986-12-19 1987-12-18 HEAT EXCHANGER, IN PARTICULAR A CONDENSER FOR REFRIGERATION CIRCUITS

Country Status (4)

Country Link
DE (1) DE8716755U1 (en)
ES (1) ES1003884Y (en)
FR (1) FR2608747B3 (en)
IT (1) IT209055Z2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3934479A1 (en) * 1989-10-16 1991-04-18 Lingemann Helmut Gmbh & Co METHOD FOR PRODUCING A PLATE LIQUID FOR A COOLING MACHINE, ESPECIALLY FOR A HOUSEHOLD REFRIGERATOR, AND IN PARTICULAR PLATE LIQUID MANUFACTURED ACCORDING TO THE PROCESS
WO2006067378A1 (en) * 2004-12-22 2006-06-29 Ti Group Automotive Systems Limited A heat exchanger
US8261567B2 (en) 2009-06-23 2012-09-11 Hussmann Corporation Heat exchanger coil with wing tube profile for a refrigerated merchandiser

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522193A1 (en) * 1995-06-19 1997-01-02 Kermi Gmbh Heating device, in particular radiators for central heating systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3934479A1 (en) * 1989-10-16 1991-04-18 Lingemann Helmut Gmbh & Co METHOD FOR PRODUCING A PLATE LIQUID FOR A COOLING MACHINE, ESPECIALLY FOR A HOUSEHOLD REFRIGERATOR, AND IN PARTICULAR PLATE LIQUID MANUFACTURED ACCORDING TO THE PROCESS
WO2006067378A1 (en) * 2004-12-22 2006-06-29 Ti Group Automotive Systems Limited A heat exchanger
US8261567B2 (en) 2009-06-23 2012-09-11 Hussmann Corporation Heat exchanger coil with wing tube profile for a refrigerated merchandiser

Also Published As

Publication number Publication date
DE8716755U1 (en) 1988-04-21
IT209055Z2 (en) 1988-09-02
ES1003884Y (en) 1989-03-16
IT8624143V0 (en) 1986-12-19
ES1003884U (en) 1988-08-01
FR2608747B3 (en) 1989-01-13

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