EP0009458B1 - Heat exchanger device - Google Patents

Heat exchanger device Download PDF

Info

Publication number
EP0009458B1
EP0009458B1 EP19790420046 EP79420046A EP0009458B1 EP 0009458 B1 EP0009458 B1 EP 0009458B1 EP 19790420046 EP19790420046 EP 19790420046 EP 79420046 A EP79420046 A EP 79420046A EP 0009458 B1 EP0009458 B1 EP 0009458B1
Authority
EP
European Patent Office
Prior art keywords
plate
plates
slits
slots
solid parts
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
Application number
EP19790420046
Other languages
German (de)
French (fr)
Other versions
EP0009458A1 (en
Inventor
Matthieu Kaemmerlen
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.)
Application des Gaz SA
Original Assignee
Application des Gaz SA
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 Application des Gaz SA filed Critical Application des Gaz SA
Publication of EP0009458A1 publication Critical patent/EP0009458A1/en
Application granted granted Critical
Publication of EP0009458B1 publication Critical patent/EP0009458B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • F28D1/00—Heat-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
    • F28D1/02—Heat-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
    • F28D1/0233—Heat-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 air flow channels
    • 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
    • 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
    • F28F1/20—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 being attachable to the element
    • 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
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil

Definitions

  • the invention relates to a temperature exchanger device comprising a means for circulating a fluid and at least one heat exchange wall in thermal contact with said means. It is more particularly, although not exclusively, relating to a refrigerator implementing such a heat exchanger.
  • the heat exchange wall of this device is not continuous, due to the interstices formed on each side of a solid part in a corresponding slot; this is unfavorable if good thermal efficiency is sought, particularly a "freezer" for a refrigerator compared to the rest of the refrigerator.
  • the implementation of such an exchanger requires the production and use of two completely separate tools for cutting and forming the fins of the two plates respectively. This obviously increases the cost price of the exchanger made from the two plates in question.
  • the invention therefore proposes to obtain a temperature exchanger device, particularly suitable for the production of a "freezer” for a refrigerator, reconciling good thermal efficiency and great simplicity of implementation.
  • the cutting and forming of the fins can be obtained for each plate with the same tool which reduces the investment in manufacturing means.
  • the cutting and forming considered can be obtained in a single press stroke which reduces the manufacturing time while the assembly of the two plates, being carried out by simple juxtaposition, contributes to the reduction of the setting time. artwork.
  • each plate being directly applied against the means for circulating the fluid, there is an excellent transmission of calories between said means and the device.
  • FIG. 1 There is shown in fig. 1 the main elements of a heat exchange wall according to the invention which have been assigned the general reference 1 and which is intended to be associated with a pipe 2 in which circulates a fluid brought to a determined temperature so that the assembly could constitute a temperature exchanger.
  • the device comprises a tunnel 3 formed of two vertical plates 4 joined by a web 5 located at their upper edges.
  • Each plate 4 is cut so as to have vertical openings or slots 4a which each allow a fin 4b to be raised perpendicular to the general plane of the plate, the width of each fin being the same as that of the corresponding slot.
  • each slot 4a has an inferior edge oblique laughter.
  • the lower part of each plate 4 is folded down to form an edge 4c intended to come to cooperate with the underside of each of the branches of the pipe 2 which affects the shape of a loop.
  • the tunnel 3 is advantageously made from a single blank of a thin sheet of light alloy.
  • each plate 4 cooperates with another plate 6 of thin sheet of light alloy cut in the same way as the corresponding plate, in other words each of the plates 6 is provided with vertical openings or slots 6a allowing the constitution of fins 6b from one of the vertical edges of the slot and oriented perpendicular to the general plane of the plate considered.
  • the distance separating two neighboring slots 6a is equal to the width of the slots.
  • the fins 6b of the plate 6 can be engaged in the slots 4a of the plate 4 so that they come to be arranged parallel to the fins 4b. Care is taken to move the plate 6 longitudinally relative to the corresponding plate 4 (fig. 3) so that the strips 6c which separate the slots 6a come to be placed in front of the slots 4a in order to close them. Symmetrically, the strips 4d which separate the slots 4a block the slots 6a. A continuous composite partition is thus obtained from which a series of fins 4b, 6b extend laterally.
  • each plate 6 is provided with a fallen edge 6d which comes to bear against the top of the corresponding branch of the pipe 2. Due to the oblique shape of the lower edge of the fins 4b, the part of the slot which served for its constitution has a notch not covered by the plate 6.
  • the two branches of the loop 2a are connected by a floor 8 produced by the hub of two symmetrical elements 8 ', 8 "made from a thin sheet of aluminum.
  • Each element 8', 8" has a fallen edge 8 ' a, 8 “a and a rounded gutter 8'b, 8” b.
  • the latter surrounds the corresponding branch of the loop 2a while the fallen edges 8'a, 8 "a which are oriented vertically, are in abutment against one another.
  • the space between the tunnel 3 and the box 9 is filled with an insulating material 10 such as expanded polystyrene, while a plate 11 of the same material located between the two loops of the pipe 2 isolates a chamber 12, constituted by the floor 8 and the box 9.
  • the chamber 12 is thus cooler than the enclosure cooled by the first loop of the pipe 2 and the tunnel 3 since the loop 2a thereof is located most upstream. It is in this room that frozen food is generally placed.
  • a housing 13 closes the lower part of the tunnel 3 and the front of the assembly shown in fig. 4.
  • the front of this box has a door 13a giving access either to a refrigerated compartment constituted by a heat exchange wall such as that shown in fig. 2, or to chamber 12 by means of an opening 13b.
  • the lower part 13c of the housing 13 constitutes a gutter intended to collect the defrosting water.
  • the two loops of the pipe 2 are not flat since they are part of the same pipe whose entry into the refrigerator and the outlet towards the general circuit are close to each other. Thanks to the flexibility of the lower edges 4c and 6d of the plates 4 and 6 corresponding to each loop branch, the whole of the wall 1 can maintain a horizontal orientation.
  • the plate forming the lower part of the chamber 12 is made in two parts, said plate does not have to exactly affect the shape of the loop 2a of the pipe 2, these are its two parts 8 ' , 8 "which are offset from each other.

Description

L'invention concerne un dispositif échangeur de température comprenant un moyen de circulation d'un fluide et au moins une paroi d'échange thermique en contact thermique avec ledit moyen. Elle est plus particulièrement, bien que non exclusivement, relative à un réfrigérateur mettant en oeuvre un tel échangeur de chaleur.The invention relates to a temperature exchanger device comprising a means for circulating a fluid and at least one heat exchange wall in thermal contact with said means. It is more particularly, although not exclusively, relating to a refrigerator implementing such a heat exchanger.

Un dispositif tel que mentionné ci-dessus a été décrit dans le fascicule du brevet français 794515. Il comporte:A device as mentioned above has been described in the specification of French patent 794515. It comprises:

  • - un moyen de circulation d'un fluide, constitué par deux parties creuses, appartenant à des plaques différentes, accolées l'une sur l'autre;- A means of circulating a fluid, consisting of two hollow parts, belonging to different plates, joined one on the other;
  • - au moins une paroi d'échange thermique constituée par l'association des deux plaques précitées et par conséquent en contact thermique direct avec le moyen de circulation précédemment défini; chaque plaque est pourvue de fentes de même largeur, séparées les unes des autres par des parties pleines de même largeur, les parties pleines étant moins larges que les fentes; pour chaque plaque, des ailettes obtenues par relèvement, à partir du plan général de ladite plaque, des découpes correspondant aux fentes, sont régulièrement espacées les unes des autres; les deux plaques sont assemblées l'une contre l'autre, les ailettes de l'une des plaques étant disposées du côté opposé aux ailettes de l'autre; les parties pleines de l'une des plaques sont placées dans les fentes de l'autre plaque.- At least one heat exchange wall formed by the association of the two aforementioned plates and therefore in direct thermal contact with the previously defined circulation means; each plate is provided with slots of the same width, separated from each other by solid parts of the same width, the solid parts being narrower than the slots; for each plate, fins obtained by raising, from the general plane of said plate, cutouts corresponding to the slots, are regularly spaced from one another; the two plates are assembled one against the other, the fins of one of the plates being arranged on the side opposite to the fins of the other; the solid parts of one of the plates are placed in the slots of the other plate.

S'agissant (mais non exclusivement) d'un "freezer" pour réfrigérateur, cette solution n'apparaît pas entièrement satisfaisante.As it is (but not exclusively) a "freezer" for a refrigerator, this solution does not appear entirely satisfactory.

La paroi d'échange thermique de ce dispositif n'est pas continue, en raison des interstices ménagés de chaque côté d'une partie pleine dans une fente correspondante; ceci est défavorable si l'on recherche une bonne efficacité thermique particulièrement d'un "freezer" pour réfrigérateur par rapport au reste du réfrigérateur. En outre la mise en oeuvre d'un tel échangeur nécessite la réalisation et l'utilisation de deux outillages totalement distincts pour la découpe et le formage des ailettes des deux plaques respectivement. Ceci renchérit bien évidemment le prix de revient de l'échangeur fabriqué à partir des deux plaques en question.The heat exchange wall of this device is not continuous, due to the interstices formed on each side of a solid part in a corresponding slot; this is unfavorable if good thermal efficiency is sought, particularly a "freezer" for a refrigerator compared to the rest of the refrigerator. In addition, the implementation of such an exchanger requires the production and use of two completely separate tools for cutting and forming the fins of the two plates respectively. This obviously increases the cost price of the exchanger made from the two plates in question.

L'invention propose donc d'obtenir un dispositif échangeur de température, particulièrement adapté à la réalisation d'un "freezer" pour réfrigérateur, conciliant une bonne efficacité thermique et une grande simplicité de mise en oeuvre.The invention therefore proposes to obtain a temperature exchanger device, particularly suitable for the production of a "freezer" for a refrigerator, reconciling good thermal efficiency and great simplicity of implementation.

Conformément à l'invention ce problème est résolu par les caractéristiques suivantes:

  • - le moyen de circulation du fluide consiste en une canalisation distincte des deux plaques qui comportent chacune un bord d'appui contre un côté de cette canalisation;
  • - la largeur des parties pleines séparant deux fentes consécutives et la largeur des fentes sont égales, d'une part pour chaque plaque, et d'autre part entre les deux plaques;
  • - les ailettes de l'une des plaques sont engagées dans les fentes de l'autre plaque, du même côté que les ailettes de ladite autre plaque;
  • - les deux plaques sont disposées l'une contre l'autre, de telle manière que les parties pleines de l'une obturent complètement les fentes de l'autre.
According to the invention, this problem is solved by the following characteristics:
  • - The fluid circulation means consists of a separate pipe from the two plates which each have a bearing edge against a side of this pipe;
  • - The width of the solid parts separating two consecutive slots and the width of the slots are equal, on the one hand for each plate, and on the other hand between the two plates;
  • - The fins of one of the plates are engaged in the slots of the other plate, on the same side as the fins of said other plate;
  • - The two plates are arranged one against the other, so that the solid parts of one completely block the slots of the other.

La découpe et le formage des ailettes peuvent être obtenus pour chaque plaque avec le même outillage ce qui allège l'investissement en moyens de fabrication. De plus, la découpe et la formage considérés peuvent être obtenus en un seul coup de presse ce qui réduit le temps de fabrication tandis que l'assemblage des deux plaques, s'effectuant par simple juxtaposition, contribue à la diminution du temps de mise en oeuvre. En outre chaque plaque étant directement appliquée contre le moyen de circulation du fluide, il y a une excellente transmission des calories entre ledit moyen et le dispositif.The cutting and forming of the fins can be obtained for each plate with the same tool which reduces the investment in manufacturing means. In addition, the cutting and forming considered can be obtained in a single press stroke which reduces the manufacturing time while the assembly of the two plates, being carried out by simple juxtaposition, contributes to the reduction of the setting time. artwork. In addition, each plate being directly applied against the means for circulating the fluid, there is an excellent transmission of calories between said means and the device.

Enfin la surface d'échange est importante et sans solution de continuité de sorte que le rendement du dispositif est excellent.Finally, the exchange surface is large and without a solution of continuity so that the performance of the device is excellent.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention:

  • Fig. 1 est une vue éclatée d'une double paroi d'échange thermique réalisée conformément à l'invention.
  • Fig. 2 en est une vue en perspective à l'état monté.
  • Fig. 3 en est une coupe longitudinale partielle.
  • Fig. 4 illustre l'utilisation de la paroi d'échange thermique de fig. 1.
  • Fig. 5 représente en section transversale un évaporateur de réfrigérateur comportant une double cloison suivant l'invention et dans lequel est incorporé un freezer.
The appended drawing, given by way of example, will allow a better understanding of the invention:
  • Fig. 1 is an exploded view of a double heat exchange wall produced in accordance with the invention.
  • Fig. 2 is a perspective view in the assembled state.
  • Fig. 3 is a partial longitudinal section.
  • Fig. 4 illustrates the use of the heat exchange wall of FIG. 1.
  • Fig. 5 shows in cross section a refrigerator evaporator comprising a double partition according to the invention and in which a freezer is incorporated.

On a représenté en fig. 1 les éléments principaux d'une paroi d'échange thermique suivant l'invention qu'on a affectée de la référence générale 1 et qui est destinée à être associée à une canalisation 2 dans laquelle circule un fluide porté à une température déterminée de manière que l'ensemble puisse constituer un échangeur de température.There is shown in fig. 1 the main elements of a heat exchange wall according to the invention which have been assigned the general reference 1 and which is intended to be associated with a pipe 2 in which circulates a fluid brought to a determined temperature so that the assembly could constitute a temperature exchanger.

Le dispositif comprend un tunnel 3 formé de deux plaques verticales 4 réunies par un voile 5 situé au niveau de leurs bords supérieurs. Chaque plaque 4 est découpée de manière à présenter des ouvertures verticales ou fentes 4a qui permettent chacune de relever une ailette 4b perpendiculairement au plan général de la plaque, la largeur de chaque ailette étant la même que celle de la fente correspondante. On note que chaque fente 4a présente un bord inférieur oblique. La partie basse de chaque plaque 4 est rabattue pour former un bord 4c destiné à venir coopérer avec le dessous de chacune des branches de la canalisation 2 qui affecte la forme d'une boucle. Le tunnel 3 est avantageusement réalisé à partir d'un flan unique d'une tôle mince d'alliage léger. On peut par exemple choisir une tôle d'aluminium de 0,5 à 0,10 mm d'épaisseur.The device comprises a tunnel 3 formed of two vertical plates 4 joined by a web 5 located at their upper edges. Each plate 4 is cut so as to have vertical openings or slots 4a which each allow a fin 4b to be raised perpendicular to the general plane of the plate, the width of each fin being the same as that of the corresponding slot. Note that each slot 4a has an inferior edge oblique laughter. The lower part of each plate 4 is folded down to form an edge 4c intended to come to cooperate with the underside of each of the branches of the pipe 2 which affects the shape of a loop. The tunnel 3 is advantageously made from a single blank of a thin sheet of light alloy. One can for example choose an aluminum sheet of 0.5 to 0.10 mm thick.

Chaque plaque 4 coopère avec une autre plaque 6 de tôle mince d'alliage léger découpé de la même manière que la plaque correspondante, autrement dit chacune des plaques 6 est pourvue d'ouvertures ou fentes verticales 6a permettant la constitution d'ailettes 6b issues de l'une des arêtes verticales de la fente et orientées perpendiculairement au plan général de la plaque considérée. Comme pour la plaque 4 la distance séparant deux fentes 6a voisines est égale à la largeur des fentes.Each plate 4 cooperates with another plate 6 of thin sheet of light alloy cut in the same way as the corresponding plate, in other words each of the plates 6 is provided with vertical openings or slots 6a allowing the constitution of fins 6b from one of the vertical edges of the slot and oriented perpendicular to the general plane of the plate considered. As for the plate 4, the distance separating two neighboring slots 6a is equal to the width of the slots.

Ainsi comme monté en fig. 2 les ailettes 6b de la plaque 6 peuvent être engagées dans les fentes 4a de la plaque 4 de manière qu'elles viennent se disposer parallèlement aux ailettes 4b. On prend soin de déplacer la plaque 6 longitudinalement par rapport à la plaque 4 correspondante (fig. 3) de manière que les bandes 6c qui séparent les fentes 6a viennent se placer devant les fentes 4a en vue de les obturer. De façon symétrique les bandes 4d qui séparent les fentes 4a viennent boucher les fentes 6a. On obtient ainsi une cloison composite continue à partir de laquelle une série d'ailettes 4b, 6b s'étendent latéralement.Thus, as shown in fig. 2 the fins 6b of the plate 6 can be engaged in the slots 4a of the plate 4 so that they come to be arranged parallel to the fins 4b. Care is taken to move the plate 6 longitudinally relative to the corresponding plate 4 (fig. 3) so that the strips 6c which separate the slots 6a come to be placed in front of the slots 4a in order to close them. Symmetrically, the strips 4d which separate the slots 4a block the slots 6a. A continuous composite partition is thus obtained from which a series of fins 4b, 6b extend laterally.

On observe que la partie inférieure de chaque plaque 6 est pourvue d'un bord tombé 6d qui vient prendre appui contre le dessus de la branche correspondante de la canalisation 2. Du fait de la forme oblique de l'arête inférieure des ailettes 4b, la partie de la fente qui a servi à sa constitution présente une encoche non recou- verte par la plaque 6.It is observed that the lower part of each plate 6 is provided with a fallen edge 6d which comes to bear against the top of the corresponding branch of the pipe 2. Due to the oblique shape of the lower edge of the fins 4b, the part of the slot which served for its constitution has a notch not covered by the plate 6.

Lors du découpage des plaques on peut prévoir la réalisation de languettes, non représentées, susceptibles de les maintenir appliquées l'une contre l'autre. Bien entendu tout autre mode d'assemblage peut être utilisé et en particulier la soudure par points ou le rivetage.When cutting the plates, provision may be made for the production of tongues, not shown, capable of keeping them applied one against the other. Of course any other assembly method can be used and in particular spot welding or riveting.

On peut employer les encoches inférieures des fentes 4a pour accrocher les deux extrémités recourbées 7a d'épingles 7 réalisées en fil d'acier et comportant une boucle centrale 7b destinée à leur assurer une plus grande élasticité. Les épingles en question maintiennent ainsi en contact intime la paroi d'échange thermique ainsi réalisée avec la branche correspondante de la canalisation 2. Bien entendu, on s'arrange pour que la distance séparant le rebord 4c du bord tombé 6d soit très légèrement inférieure au diamètre de la canalisation 2 afin qu'il exerce une pression sur celle-ci.One can use the lower notches of the slots 4a to hang the two curved ends 7a of pins 7 made of steel wire and comprising a central loop 7b intended to provide them with greater elasticity. The pins in question thus maintain intimate contact with the heat exchange wall thus produced with the corresponding branch of the pipe 2. Of course, arrangements are made for the distance separating the rim 4c from the fallen edge 6d to be very slightly less than the diameter of the pipe 2 so that it exerts pressure thereon.

Si l'on désire réaliser un évaporateur d'appareil de réfrigération on peut utiliser l'ensemble des éléments représentés en fig. 1 à 3 pour constituer la partie destinée à absorber des calories dans l'enceinte à refroidir, c'est-à-dire un compartiment réfrigéré (fig. 4).If it is desired to make an evaporator for a refrigeration appliance, all the elements shown in fig. 1 to 3 to constitute the part intended to absorb calories in the enclosure to be cooled, that is to say a refrigerated compartment (fig. 4).

On peut aussi prévoir avantageusement de faire passer une seconde boucle 2a de la canalisation 2 à l'intérieur du tunnel 3, cette seconde boucle étant située en amont de l'autre par rapport à la circulation du fluide.One can also advantageously provide for passing a second loop 2a of the pipe 2 inside the tunnel 3, this second loop being located upstream of the other relative to the circulation of the fluid.

Les deux branches de la boucle 2a sont reliées par un plancher 8 réalisé au moyeu de deux éléments symétriques 8', 8" fabriqués à partir d'une tôle mince d'aluminium. Chaque élément 8', 8" comporte un bord tombé 8'a, 8"a et une gouttière arrondie 8'b, 8"b. Cette dernière entoure la branche correspondante de la boucle 2a tandis que les bords tombés 8'a, 8"a qui sont orientés verticalement, se trouvent en appui l'un contre l'autre.The two branches of the loop 2a are connected by a floor 8 produced by the hub of two symmetrical elements 8 ', 8 "made from a thin sheet of aluminum. Each element 8', 8" has a fallen edge 8 ' a, 8 "a and a rounded gutter 8'b, 8" b. The latter surrounds the corresponding branch of the loop 2a while the fallen edges 8'a, 8 "a which are oriented vertically, are in abutment against one another.

Une case 9 présentant la forme d'un U renversé et réalisée en une tôle mince d'alliage léger, est placée dans le tunnel 3, les bords libres de ses cloisons latérales 9a, 9b étant conformés de manière à entourer les gouttières correspondantes 8'b, 8"b du plancher 8.A box 9 having the shape of an inverted U and made of a thin sheet of light alloy, is placed in the tunnel 3, the free edges of its lateral partitions 9a, 9b being shaped so as to surround the corresponding gutters 8 ' b, 8 "b from floor 8.

L'espace situé entre le tunnel 3 et la case 9 est rempli d'une matière isolante 10 telle que du polystyrène expansé, tandis qu'une plaque 11 de même matière située entre les deux boucles de la canalisation 2 isole une chambre 12, constituée par la plancher 8 et la case 9. La chambre 12 est ainsi plus froide que l'enceinte refroidie par la première boucle de la canalisation 2 et le tunnel 3 puisque la boucle 2a de celle-ci se trouve le plus en amont. C'est dans cette chambre que l'on place généralement les aliments surgelés. Pour terminer l'ensemble, un boîtier 13 ferme la partie inférieure du tunnel 3 et l'avant de l'ensemble représenté en fig. 4. La façade de ce boîtier comporte une porte 13a donnant accès soit à un compartiment réfrigéré constitué par une paroi d'échange thermique telle que celle représentée en fig. 2, soit à la chambre 12 au moyen d'une ouverture 13b. La partie inférieure 13c du boîtier 13 constitue une gouttière destinée à recueillir l'eau de dégivrage.The space between the tunnel 3 and the box 9 is filled with an insulating material 10 such as expanded polystyrene, while a plate 11 of the same material located between the two loops of the pipe 2 isolates a chamber 12, constituted by the floor 8 and the box 9. The chamber 12 is thus cooler than the enclosure cooled by the first loop of the pipe 2 and the tunnel 3 since the loop 2a thereof is located most upstream. It is in this room that frozen food is generally placed. To complete the assembly, a housing 13 closes the lower part of the tunnel 3 and the front of the assembly shown in fig. 4. The front of this box has a door 13a giving access either to a refrigerated compartment constituted by a heat exchange wall such as that shown in fig. 2, or to chamber 12 by means of an opening 13b. The lower part 13c of the housing 13 constitutes a gutter intended to collect the defrosting water.

On conçoit que les deux boucles de la canalisation 2 ne sont pas planes puisqu'elles font partie d'une même canalisation dont l'entrée dans le réfrigérateur et la sortie en direction du circuit général se trouvent proches l'une de l'autre. Grâce à la souplesse des bords inférieurs 4c et 6d des plaques 4 et 6 correspondant à chaque branche de boucle, l'ensemble de la paroi 1 peut conserver une orientation horizontale.It is understood that the two loops of the pipe 2 are not flat since they are part of the same pipe whose entry into the refrigerator and the outlet towards the general circuit are close to each other. Thanks to the flexibility of the lower edges 4c and 6d of the plates 4 and 6 corresponding to each loop branch, the whole of the wall 1 can maintain a horizontal orientation.

De même manière, du fait que la plateau formant la partie inférieure de la chambre 12 est exécuté en deux pièces, ledit plateau n'a pas à affecter exactement la forme de la boucle 2a de la canalisation 2, ce sont ses deux parties 8', 8" qui se décalent l'une par rapport à l'autre.Similarly, since the plate forming the lower part of the chamber 12 is made in two parts, said plate does not have to exactly affect the shape of the loop 2a of the pipe 2, these are its two parts 8 ' , 8 "which are offset from each other.

Claims (2)

1. Temperature exchanger device, comprising means for the circulation of a fluid and at least one thermal exchange wall (1) in thermal contact with the means, said wall comprising a first plate (6) provided with slits (6a) spaced regularly one from another and small blades (6b) intercalated regularly between the slits and raised from the general plane of the plate, and a second plate (4) arranged in the same manner as the first, both plates being assembled in relation to each other in such a way that the solid parts (4d, 6c) of the one are placed in front of the slits (4a, 6a) of the other, characterized in that:
- the means of circulation of the fluid consists of a piping system (2) non-integral with the two plates (4, 6) where each plate has an edge (4c, 6d) resting against one side of the piping system;
- the width of the solid parts (4d, 6c) separating two consecutive slits (4a, 6a) and the width of the slits are equal, on the one hand for each plate and on the other hand between the two plates (4, 6);
- the small blades (6b) of one of the plates (6) are engaged in the slits (4a) of the other plate (4) in the same direction as are the small blades (4b) of the other plate (4);
- the two plates (4, 6) are arranged one against the other, in such a way that the solid parts (4d, 6c) of the one completely shut off the slits (4a, 6a) of the other.
2. Device according to Claim 1, intended for a refrigerator, characterized in that it comprises two identical thermal exchange walls, arranged in the following manner:
- two parallel plates (4), each identical to said first plate, connected with one another by a sheet (5);
- two other plates (6), each identical to said second plate, to shut off respectively the slits (6a) of the two parallel plates (6).
EP19790420046 1978-09-27 1979-09-26 Heat exchanger device Expired EP0009458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7828316 1978-09-27
FR7828316A FR2437595A1 (en) 1978-09-27 1978-09-27 TEMPERATURE EXCHANGER AND REFRIGERATOR COMPRISING SUCH A DEVICE

Publications (2)

Publication Number Publication Date
EP0009458A1 EP0009458A1 (en) 1980-04-02
EP0009458B1 true EP0009458B1 (en) 1983-11-23

Family

ID=9213305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790420046 Expired EP0009458B1 (en) 1978-09-27 1979-09-26 Heat exchanger device

Country Status (3)

Country Link
EP (1) EP0009458B1 (en)
DE (1) DE2966424D1 (en)
FR (1) FR2437595A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8320277D0 (en) * 1983-07-27 1983-09-01 Simpson V J Gas fired boilers
GB8805587D0 (en) * 1988-03-09 1988-04-07 Batters R S Heat radiating element
DE19751768A1 (en) * 1997-11-21 1999-05-27 Bosch Siemens Hausgeraete Evaporator
DE102007029179A1 (en) * 2007-06-25 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH The refrigerator
DE102007052585B3 (en) * 2007-11-03 2009-06-04 Pierburg Gmbh Method for producing a heat exchanger
ITAN20100141A1 (en) * 2010-08-13 2012-02-14 Daniele Cesaretti HEATING THERMAL CHANNEL IN PERFORATED SHEET.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794030A (en) * 1927-02-21 1931-02-24 Metropolitan Eng Co Refrigerating machine
US1829387A (en) * 1927-11-30 1931-10-27 Frigidaire Corp Refrigerating apparatus
FR794515A (en) * 1934-09-26 1936-02-19 Kuehl U Kraftmaschinen G M B H heat exchanger
US2207125A (en) * 1937-02-11 1940-07-09 Uniflow Mfg Company Refrigerant system and apparatus
FR880080A (en) * 1942-03-10 1943-03-12 Improvements in the construction of refrigerating elements for refrigerated cabinets
GB710550A (en) * 1951-08-25 1954-06-16 Bolinders Fabriks Ab Improvements in cooling structures for absorption refrigeration apparatus
GB834173A (en) * 1957-12-20 1960-05-04 Aluminium U Metallwarenfabrik Improvements in or relating to heat exchangers

Also Published As

Publication number Publication date
EP0009458A1 (en) 1980-04-02
FR2437595A1 (en) 1980-04-25
DE2966424D1 (en) 1983-12-29
FR2437595B1 (en) 1982-10-08

Similar Documents

Publication Publication Date Title
EP1192402B1 (en) Multichannel tube heat exchanger, in particular for motor vehicle
EP0611235B1 (en) Heat exchanger for electronic components and electrical apparatus
FR2803166A1 (en) Aircraft/tank modular electronic cooling unit having printed circuit board with protection cover having surface near component having thermal conductivity above cover.
WO2005040707A2 (en) Heat exchanger using a storage fluid
FR2665521A1 (en) IMPROVED INDEPENDENT SURFACE OF HEAT TRANSFER.
FR2563620A1 (en) PLATE TYPE HEAT EXCHANGER
EP0009458B1 (en) Heat exchanger device
FR2824895A1 (en) Undulating louver fin for plate heat exchanger comprises set of undulating legs connected alternately by undulating top and undulating base and provided with inclined flaps cut in legs
EP0017082A1 (en) Thermoelectric device for heat transfer between a first gaseous fluid and a second fluid
EP1058807B1 (en) Heat exchanger with flexible tubes
EP0881754B1 (en) Electric motor brush holder with cooling fins
FR2515804A1 (en) HEAT EXCHANGER, COMPRISING A BEAM OF TUBES ORIENTED PARALLEMENT, WHICH CAN BE SOLICATED BY AIR
FR2688299A1 (en) Refrigeration cabinet, with deicing at constant temperature, for individually sold food products
FR2748800A1 (en) Heat exchanger for electronic component and electric apparatus cooling
FR2515802A1 (en) HEAT EXCHANGER COMPRISING A BEAM OF PARALLEL TUBES THAT CAN BE SOLICATED BY AIR, IN PARTICULAR FOR THE AIR CONDITIONING OF THE CABIN OF A MOTOR VEHICLE
FR2567048A1 (en) DEVICE FOR COOLING HOT-PLANE LAMINATES
FR2980260A1 (en) MULTI-CLOTH EVAPORATOR FOR AIR CONDITIONING CIRCUIT FOR MOTOR VEHICLE
FR2619205A1 (en) JET IMPACT HEAT EXCHANGER
EP0734066B1 (en) Electronic power module
FR2811416A1 (en) TWO-CHANNEL FLUID TYPE HEAT EXCHANGER
EP0017083A1 (en) Thermoelectric device for heat transfer between two fluids
FR2751403A1 (en) Counterflow heat exchanger flat tube
EP0028559B1 (en) Partition device with movable panels for cooling apparatus, and refrigerator comprising such a device
EP1265045B1 (en) High refrigeration power evaporator for vehicle air conditioning system
FR2704310A1 (en) Plate and bar exchanger with crossed circuits

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE GB LU SE

17P Request for examination filed
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: APPLICATION DES GAZ

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE GB LU SE

REF Corresponds to:

Ref document number: 2966424

Country of ref document: DE

Date of ref document: 19831229

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19840930

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890710

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890711

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19900930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910730

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19911128

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920926

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920926

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930602

EUG Se: european patent has lapsed

Ref document number: 79420046.9

Effective date: 19910527