FR2528158A1 - Simple two-compartment refrigerator - uses double plate roll-bonded evaporator forming refrigerant passages and having only two welded connections to other evaporator - Google Patents

Simple two-compartment refrigerator - uses double plate roll-bonded evaporator forming refrigerant passages and having only two welded connections to other evaporator Download PDF

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Publication number
FR2528158A1
FR2528158A1 FR8309242A FR8309242A FR2528158A1 FR 2528158 A1 FR2528158 A1 FR 2528158A1 FR 8309242 A FR8309242 A FR 8309242A FR 8309242 A FR8309242 A FR 8309242A FR 2528158 A1 FR2528158 A1 FR 2528158A1
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FR
France
Prior art keywords
evaporator
section
capillary
plate
bonded
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
FR8309242A
Other languages
French (fr)
Other versions
FR2528158B3 (en
Inventor
Armando Pelizzari
Adriano Sina
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 FR2528158A1 publication Critical patent/FR2528158A1/en
Application granted granted Critical
Publication of FR2528158B3 publication Critical patent/FR2528158B3/fr
Granted legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • F25B39/022Evaporators with plate-like or laminated elements
    • F25B39/024Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The two storage compartments (2,3) are maintained at different temperatures by evaporator sections (4,5) incorporated in the refrigeration circuit, one section and a capillary section (6) being formed by a 'roll bonded' double metal plate with channel formed between the plates. The other section is connected to the first so that the number of welded tube connections is reduced. The roll-bonded plate (5) has a cut-out incorporating part of the flow passage of the capillary section, while inlet and outlet orifices of the other evaporator section (4) are welded to the ends (AB) of the capillary flow passage. The double plate evaporator (5) has an outlet into the return conduit (10) enclosing the capillary (6), running between a single return orifice and a throttle closing the capillary.

Description

"Réfrigérateur muni d'un évoparateur double plaque simplifié"."Refrigerator fitted with a simplified double plate evaporator".

L'invention concerne un réfrigérateur ménager comportant au moins deux compartiments de conèrvation maintenus à des températures différentes par des sections évaporateurs du circuit de réfrigération associé au réfrigérateur, l'une desdites sections ainsi qu'une section capillaire étant formées par une double plaque métallique munie de canaux (assemblée par la méthode dite "roll bonding" en langue anglaise) et l'autre section étant réunie au canal d'écoulement de la section capillaire.Dans ces réfrigérateurs connus, dans lesquels les deux sections évaporateur du circuit de réfrigération sont le plus souvent montées en série et la section évaporateur associée au compartiment le plus froid est constituée par un serpentin plat adhérant à la paroi dudit compartiment, il est nécessaire d'effectuer plusieurs soudures pour raccorder les deux sections évaporateurs entre elles ainsi qu'au tube capillaire et aux conduites de retour ou d'écoulement des deux sections. The invention relates to a household refrigerator comprising at least two storage compartments maintained at different temperatures by evaporator sections of the refrigeration circuit associated with the refrigerator, one of said sections and a capillary section being formed by a double metal plate provided of channels (assembled by the so-called "roll bonding" method in English) and the other section being joined to the flow channel of the capillary section. In these known refrigerators, in which the two evaporator sections of the refrigeration circuit are the more often connected in series and the evaporator section associated with the coldest compartment is constituted by a flat coil adhering to the wall of said compartment, it is necessary to perform several welds to connect the two evaporator sections to each other as well as to the capillary tube and to the return or flow lines of the two sections.

L'invention vise à fournir une section évaporateur destinée au compartiment ayant la température la plus élevée et constituée par une plaque métallique double munie de canaux (assemblée par la méthode dite "roll bonding" en langue anglaise) et ayant une forme telle que soit sensiblement réduit le nombre de soudures nécessaires aux raccordements précités. The invention aims to provide an evaporator section intended for the compartment having the highest temperature and constituted by a double metal plate provided with channels (assembled by the method called "roll bonding" in English) and having a shape such that is substantially reduces the number of welds required for the aforementioned connections.

Conformément à l'invention, la plaque présente une échancrure comportant une partie dudit canal d'écoulement de la section capillaire, alors que les orifices d'admission et d'écoulement de l'autre section évaporateur sont raccordés aux extrémités coupées dudit canal d'écoulement, que la section de ltévaporateur double plaque est munie d'un canal d'écoulement débouchant dans une conduite de retour entourant le tube capillaire entre un seul orifice de retour et un étranglement servant à enfermer le tube capillaire. According to the invention, the plate has a notch comprising a part of said flow channel of the capillary section, while the inlet and flow orifices of the other evaporator section are connected to the cut ends of said channel. flow, that the section of the double plate evaporator is provided with a flow channel opening into a return pipe surrounding the capillary tube between a single return orifice and a constriction serving to enclose the capillary tube.

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.

La figure 1 représente schématiquement, en perspective et en vue de derrière un réfrigérateur à deux compartiments. Figure 1 shows schematically, in perspective and in view from behind a refrigerator with two compartments.

La figure 2 représente ltévaporateur double plaque muni des raccordements au reste du circuit de réfrigération qui est représenté schématiquement. 2 shows the double plate evaporator provided with connections to the rest of the refrigeration circuit which is shown diagrammatically.

Sur les figures, la référence 1 indique la carrosserie de réfrigérateur comportant deux compartiments de conservation 2 et 3 qui son maintenus à des températures différentes par les deux sections évaporateur 4 et 5 du circuit de réfrigération associé à la carrosserie et comportant en plus des sections évaporateurs 4, 5, une section capillaire 5b munie d'un tube capillaire 6, un condenseur (non représenté) et un compresseur (pas représenté non plus). In the figures, the reference 1 indicates the refrigerator body comprising two storage compartments 2 and 3 which are kept at different temperatures by the two evaporator sections 4 and 5 of the refrigeration circuit associated with the body and also comprising evaporator sections 4, 5, a capillary section 5b provided with a capillary tube 6, a condenser (not shown) and a compressor (not shown either).

La section évaporateur 4 associée au compartiment de conservation 2, qui est supposé etre le compartiment le plus froid, est constituée, par exemple, par un serpentin plat en matériau tubulaire métallique adhérant à au moins quelques-unes des parois définissant ledit compartiment. The evaporator section 4 associated with the storage compartment 2, which is assumed to be the coldest compartment, is constituted, for example, by a flat coil made of metallic tubular material adhering to at least some of the walls defining said compartment.

La section évaporateur 5 associée au compartiment le plus chaud 3 et constituée par une double plaque métallique assemblée par "roll bonding" et munie de canaux qui doivent également respecter l'exigence de réduire au minimum les soudures nécessaires pour réaliser les raccordements entre les différentes parties du circuit de réfrigération. Conformément à l'invention, la plaque 5 présente une échancrure 8 comportant une partie du canal d'écoulement 12 de la section capillaire 5b. Les extrémités coupées A et B du canal d'écoulement 12 sont obtenues par la découpe d'une partie, de préférence une partie angulaire 8, de la plaque 5, partie qui est indiquée par des lignes en traits interrompus sur la figure 2. Les orifices d'admission 14 et d'écoulement 17 de la section évaporateur 4 peuvent alors être raccordés par soudure respectivement aux extrémités coupées A et B du canal 12.Ainsi, l'orifice d'écoulement 17 de ltévapo- rateur 4 est raccordé au canal d'admission 9 de la section évaporateur 5A. Le tube capillaire 6 est entouré d'une conduite de retour 10 et d'un canal 11, ce dernier présentant un étranglement 13 dont la paroi est amenée à adhérer au tube capillaire par déformation plastique de façon à maintenir celui-ci précisément en place et à séparer le canal d'admission 12 de la conduite d'écoulement 10. The evaporator section 5 associated with the hottest compartment 3 and constituted by a double metal plate assembled by "roll bonding" and provided with channels which must also comply with the requirement to minimize the welds necessary to make the connections between the different parts of the refrigeration circuit. According to the invention, the plate 5 has a notch 8 comprising a part of the flow channel 12 of the capillary section 5b. The cut ends A and B of the flow channel 12 are obtained by cutting a part, preferably an angular part 8, of the plate 5, a part which is indicated by dashed lines in Figure 2. The inlet 14 and outlet 17 of the evaporator section 4 can then be connected by welding respectively to the cut ends A and B of the channel 12. Thus, the outlet 17 of the evaporator 4 is connected to the channel inlet 9 of the evaporator section 5A. The capillary tube 6 is surrounded by a return pipe 10 and a channel 11, the latter having a constriction 13 whose wall is caused to adhere to the capillary tube by plastic deformation so as to hold the latter precisely in place and separating the intake channel 12 from the flow pipe 10.

De plus, la section évaporateur SA comporte un serpentin plat 15 et une chambre de tampon 16. Le canal d'écoulement 18 de la section évaporateur 5A débouche dans la conduite de retour 10 entre l'orifice d'écoulement C et ltétranglement 13.  In addition, the evaporator section SA comprises a flat coil 15 and a buffer chamber 16. The flow channel 18 of the evaporator section 5A opens into the return line 10 between the flow orifice C and the constriction 13.

Il est à remarquer qu'avant l'usage, on élimine la partie de plaque 8 (représentée par des hachures sur la figure 2) à partir de laquelle on forme la section 5, mais cette partie n'est pas du déchet, du fait qu'elle appartient à une autre section evaporateur identique. It should be noted that before use, the plate part 8 (represented by hatching in FIG. 2) is eliminated from which section 5 is formed, but this part is not waste, because that it belongs to another identical evaporator section.

Dans la carrosserie du réfrigérateur, la partie de la plaque 5 qui s'étend à peu près au-dessous de la ligne Z-Z, est située à l'intérieur du compartiment le plus chaud 3, tandis que la partie supérieure, qui traverse une ouverture pratiquée dans la paroi définissant le compartiment 3, est située derrière le compartiment le plus froid 2 et reste incorporée au matériau d'isolation thermique de la carrosserie 1. In the refrigerator body, the part of the plate 5 which extends approximately below the line ZZ, is located inside the hottest compartment 3, while the upper part, which passes through an opening formed in the wall defining the compartment 3, is located behind the coldest compartment 2 and remains incorporated in the thermal insulation material of the bodywork 1.

Comme il ressort de la description et du dessin, l'invention permet de réduire considérablement le nombre de soudures qui, au niveau de ltévaporateur, se trouvent réduites à trois points A, B et
C, ou au plus à quatre points si le tube capallaire 6 doit être fixé par soudure dans l'étranglement 13.
As is apparent from the description and the drawing, the invention makes it possible to considerably reduce the number of welds which, at the level of the evaporator, are reduced to three points A, B and
C, or at most four points if the capal tube 6 must be fixed by welding in the constriction 13.

Un autre avantage de l'invention est que la plaque ne doit être soumise que partiellement à un traitement de surface (à une peinture), c'est-à-dire dans la partie qui reste visible dans le compartiment 3, tandis que l'autre partie, c'est-à-dire la partie sté- tendant au-dessus de la ligne Z-Z de la figure 2, peut rester nue à l'intérieur de l'isolation de la carrosserie du réfrigérateur.  Another advantage of the invention is that the plate should only be subjected partially to a surface treatment (to a paint), that is to say in the part which remains visible in compartment 3, while the another part, that is to say the part extending above the line ZZ in FIG. 2, can remain bare inside the insulation of the refrigerator body.

Claims (2)

REVENDICATIONS:CLAIMS: 1. Réfrigérateur ménager- > omportant au moins deux compartiments de conservation maintenus à des températures différentes par des sections évaporateurs d'un circuit de réfrigération associé au réfrigérateur, l'une desdites sections ainsi qu'une section capillaire étant formée par une double plaque métallique munie de canaux (assemblée par la méthode dite "roll bonding" en langue anglaise) et l'autre section étant raccordée au canal d'écoulement de la section capillaire, caractérisé en ce que la plaque (5) présente une échancrure (8) comportant une partie dudit canAl d'écoulement (12) de la section capillaire (5b), alors que les orifices d'admission (14) et d'écoulement (17) de l'autre section évaporateur (4) sont raccordés aux extrémités coupées (A, B) dudit canal d'écoulement, que la section de ltévaporateur double plaque (5A) est munie d'un canal d'écoulement (18) débouchant dans une conduite de retour (10) entourant le tube capillaire (6) entre un seul orifice de retour (C) et un étranglement (13) servant à enfermer le tube capillaire1. Household refrigerator-> with at least two storage compartments maintained at different temperatures by evaporator sections of a refrigeration circuit associated with the refrigerator, one of said sections and a capillary section being formed by a double metal plate provided with channels (assembled by the method known as "roll bonding" in English) and the other section being connected to the flow channel of the capillary section, characterized in that the plate (5) has a notch (8) comprising part of said flow channel (12) of the capillary section (5b), while the inlet (14) and flow (17) ports of the other evaporator section (4) are connected to the cut ends ( A, B) of said flow channel, that the section of the double plate evaporator (5A) is provided with a flow channel (18) opening into a return line (10) surrounding the capillary tube (6) between a single return port (C) and one constriction (13) used to enclose the capillary tube 2. Réfrigérateur selon la revendication 1, caractérisé en ce que ltéchancrure (8) est une partie angulaire de la plaque (5). 2. Refrigerator according to claim 1, characterized in that the notch (8) is an angular part of the plate (5).
FR8309242A 1982-06-03 1983-06-03 Simple two-compartment refrigerator - uses double plate roll-bonded evaporator forming refrigerant passages and having only two welded connections to other evaporator Granted FR2528158A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2205582U IT8222055V0 (en) 1982-06-03 1982-06-03 REFRIGERATOR WITH SIMPLIFIED DOUBLE PLATE EVAPORATOR.

Publications (2)

Publication Number Publication Date
FR2528158A1 true FR2528158A1 (en) 1983-12-09
FR2528158B3 FR2528158B3 (en) 1985-03-08

Family

ID=11190797

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8309242A Granted FR2528158A1 (en) 1982-06-03 1983-06-03 Simple two-compartment refrigerator - uses double plate roll-bonded evaporator forming refrigerant passages and having only two welded connections to other evaporator

Country Status (4)

Country Link
DE (1) DE8315574U1 (en)
ES (1) ES272625Y (en)
FR (1) FR2528158A1 (en)
IT (1) IT8222055V0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006936A1 (en) * 1985-05-28 1986-12-04 Brevetti Gaggia S.P.A. Improvements in ice-cream machines, particularly for domestic use
CN102706043A (en) * 2012-06-25 2012-10-03 合肥美的荣事达电冰箱有限公司 Refrigeration equipment and roll-bond evaporator component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016208494A1 (en) 2016-05-18 2017-11-23 BSH Hausgeräte GmbH Refrigeration appliance and method for its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006936A1 (en) * 1985-05-28 1986-12-04 Brevetti Gaggia S.P.A. Improvements in ice-cream machines, particularly for domestic use
CN102706043A (en) * 2012-06-25 2012-10-03 合肥美的荣事达电冰箱有限公司 Refrigeration equipment and roll-bond evaporator component

Also Published As

Publication number Publication date
IT8222055V0 (en) 1982-06-03
ES272625Y (en) 1984-05-16
ES272625U (en) 1983-11-16
FR2528158B3 (en) 1985-03-08
DE8315574U1 (en) 1983-11-24

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