EP0732554B1 - Evaporateur, particulièrement pour des réfrigérateurs ménagers à compresseur - Google Patents

Evaporateur, particulièrement pour des réfrigérateurs ménagers à compresseur Download PDF

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Publication number
EP0732554B1
EP0732554B1 EP96101434A EP96101434A EP0732554B1 EP 0732554 B1 EP0732554 B1 EP 0732554B1 EP 96101434 A EP96101434 A EP 96101434A EP 96101434 A EP96101434 A EP 96101434A EP 0732554 B1 EP0732554 B1 EP 0732554B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
sections
section
refrigerant
cooling performance
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 - Lifetime
Application number
EP96101434A
Other languages
German (de)
English (en)
Other versions
EP0732554A3 (fr
EP0732554A2 (fr
Inventor
Detlef Cieslik
Alexander Dipl.-Ing. Rupp (Fh)
Friedrich Dipl.-Ing. Arnold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0732554A2 publication Critical patent/EP0732554A2/fr
Publication of EP0732554A3 publication Critical patent/EP0732554A3/fr
Application granted granted Critical
Publication of EP0732554B1 publication Critical patent/EP0732554B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel

Definitions

  • the invention relates to an evaporator, in particular for compressor-operated household appliances, with at least two evaporator sections serving as heat exchange surfaces different cooling capacity, which is the refrigerant delivered by a compressor is fed via injection points and which to a coherent sheet metal board are connected.
  • an evaporator board is shown and described in DE-OS 38 04 863, which for use in a cooling device with three thermally separated cooling compartments Suitable, each through an evaporator section of the board-like evaporator is cooled.
  • Each of the evaporator sections is one for reducing the pressure of one Compressor-assisted refrigerant serving injection tube, which in a Tongue of the evaporator board are arranged.
  • the feed channels connected to the injection pipes for the refrigerant to the refrigerant channel arrangements of the individual evaporator sections are along a board area common to all three evaporator sections to the respective channel arrangement of the evaporator section led to overlap of the refrigerant supply channel sections is coming. Conditional on this The refrigerant supply channels are badly hit despite the injection point provided for each evaporator section an undesirable and not insignificant temperature influence that cooled by the respective evaporator section Freezer instead.
  • the object of the invention is based on this state of the Technology to propose measures on the basis of which a temperature influence of the other evaporator section is avoided.
  • each evaporator section Injection point Due to the decentralized, separately assigned to each evaporator section Injection point is a targeted application of the evaporator section to be supplied with refrigerant, without passing over one of the evaporator sections refrigerant supply channels leading away to the other evaporator section the temperature of this evaporator section unwanted influence.
  • By controlling the individual evaporator sections is therefore an exact one controllable cooling of each by such an evaporator section cooled refrigerator compartment possible.
  • the invention provides that three evaporator sections are provided, one of which has a higher cooling capacity than the other two and each of the others Evaporator sections switched up in series is.
  • the evaporator section is formed by such an evaporator arrangement higher cooling capacity when the Evaporator section of lower cooling capacity always additional charged with liquid refrigerant and thus also cooled, so that the refrigeration demand cycles for the evaporator are higher Cooling capacity can be increased accordingly.
  • each of the evaporator sections lower cooling capacity its injection point on the heat exchange surface in the vicinity of its from the evaporator section higher cooling capacity facing away from the evaporator section having.
  • a particularly inexpensive and practical refrigeration connection of the two evaporator sections results if according to a further advantageous embodiment of the object the invention provides that the evaporator section higher cooling capacity with the other evaporator sections via a refrigerant channel Connection bridge are connected by refrigeration.
  • a refrigerant supply is particularly simple connectable if according to a further preferred embodiment the subject matter of the invention provides that the evaporator sections of lower cooling capacity their injection point essentially in the middle of that of the Evaporator section of higher cooling capacity facing away from the evaporator section exhibit.
  • the invention provides that the two evaporator sections lower cooling capacity to each other one provided between their adjacent section sides Retaining bridge are fixed.
  • the only figure shows a board-like evaporator in stretched representation with three within the board area arranged evaporator sections.
  • a board-like evaporator 10 for use in a non illustrated multi-temperature household refrigeration device is off two aluminum sheet metal plates joined together by pressure welding formed between which the refrigerant channel arrangement of the evaporator 10 is introduced.
  • the evaporator 10 has three different areas large evaporator sections, of which the one with evaporator section equipped with the largest area share 11 is designed as a freezer compartment evaporator. This points a floor area 12, a rear wall area 13 and one Ceiling area 14, which serve as heat exchange surfaces and which for this purpose is filled with refrigerant Refrigerant channel 15 are provided.
  • the flow of the refrigerant channel 15 serving refrigerant doing so in the ceiling area 14 by stamping one Throttle tube trained injection point 16 the refrigerant channel 15 of the evaporator section 11 is supplied.
  • the evaporator section 11 is an evaporator section 17 upstream, which for cooling a Serves zero degree compartment and which via a connecting bridge 18 is mechanically connected to the former.
  • a connecting bridge 18 For mechanical Connection serves only about a third of the length of the Connecting web 18, while the remaining length is saved from the evaporator section 11, so that the evaporator section 11, which due to its [-shaped Installation shape with its vertical on the floor area 12 to the level of the evaporator section 17 is largely arranged is thermally decoupled from this.
  • the evaporator section 11 is not as here Embodiment subjected to a [-shaped shape is, but is designed as a flat circuit board, serves for thermal decoupling between the adjacent side edges the evaporator sections 11 and 17 a recess 19, which extends essentially over the entire width of the mutually adjacent evaporator section sides the evaporator sections 11 u. 17 extends.
  • the Evaporator section 17 Compared to the immediately adjacent evaporator section sides is the Evaporator section 17 on its bottom in the installed position Transverse side approximately in the middle of its width with a Provide connection point.
  • a throttle tube serving as an injection tube insertable, which is based on the connection point a soldered connection and is pressure-tight and which generates an injection point 20.
  • a refrigerant channel 21 running in turns is connected, which with its turns extends into the Close area of the lateral edges of the evaporator section 17 extends and which along the connecting web 18 to towards its mechanical connection point on the evaporator section 11 is designed as a double channel. From there he moves over the rear wall area 13 to the ceiling area 14 out, where he at a in the direction of flow of Refrigerant after the injection point 16 lying connection point in the rear wall area 13 with the refrigerant channel arrangement of the evaporator section 11 is connected.
  • the evaporator section 11 is another refrigeration, evaporator section for cooling in a refrigerator compartment 22 upstream, which via a connecting bridge 23 mechanically connected to the evaporator section 11 is.
  • the connecting web 23 is on the connecting web 18 opposite long side of the evaporator board 10 provided and runs along the bottom region 12 and the evaporator section 17, the connecting web 23 on both to avoid thermal bridges through im Fixed narrow tabs spaced from each other is.
  • the connecting web 23 is with a double channel executed refrigerant channel 25, which in the Connection area of the connecting web 23 to the evaporator section 11 again to a single-pass refrigerant channel is brought together and via the bottom region 12, the rear wall region 13 and the ceiling area 14, which is after the injection point 16 lying connection point in the rear wall area 13 is supplied.
  • This is both on the evaporator section 17 and also connected to the evaporator section 22 and serves to fix and stabilize the evaporator section 22 during the manufacturing process of the evaporator 10, and after fixing the evaporator 10 to a Refrigerator is cut to ensure heat conduction between the To largely prevent evaporator sections 17 and 22 and thus the thermal decoupling between these two Evaporator sections 17 and 22 improve.
  • Each of the evaporator sections 11, 17 and 22 is targeted via electrically controllable solenoid valves, not shown with liquid refrigerant, the solenoid valves depending on a refrigeration request from the refrigeration compartments of the refrigerator are controlled.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (7)

  1. Evaporateur, en particulier pour réfrigérateur ménager à compresseur, comprenant au moins deux parties d'évaporateur (11, 17, 22) dont les puissances frigorifiques sont différentes, qui servent de surfaces d'échange de chaleur, auxquelles le fluide frigorifique refoulé par un compresseur est apporté par des emplacements d'injection (16, 20, 26) et qui sont rassemblées en une plaque de tôle continue, caractérisé en ce que chacune des parties (11, 17, 22) de l'évaporateur est dotée sur sa surface d'échange de chaleur d'un emplacement d'injection (16, 20, 26) du fluide frigorifique, et en ce que les parties (11, 17, 22) de l'évaporateur sont très largement découplées thermiquement l'une de l'autre à l'intérieur de la plaque de tôle.
  2. Evaporateur selon la revendication 1, caractérisé en ce que trois parties (11, 17, 22) d'évaporateur sont prévues, dont l'une présente une plus forte puissance frigorifique que les deux autres et est raccordée dans un circuit série en aval de chacune des autres parties (17, 22) de l'évaporateur.
  3. Evaporateur selon l'une des revendications 1 ou 2, caractérisé en ce que les parties (11, 17, 22) de l'évaporateur sont découplées thermiquement par des évidements (19, 27) ménagés dans la plaque de tôle entre les parties (11, 17, 22) individuelles de l'évaporateur.
  4. Evaporateur selon l'une des revendications 1 à 3, caractérisé en ce que chacune des parties (17, 22) de plus faible puissance frigorifique de l'évaporateur présente son emplacement d'injection sur la surface (20, 26) d'échange de chaleur au voisinage de son côté qui n'est pas tourné vers la partie (11) de plus grande puissance frigorifique de l'évaporateur.
  5. Evaporateur selon l'une des revendications 1 à 4, caractérisé en ce que la partie (11) de plus grande puissance frigorifique de l'évaporateur est reliée à écoulement à chacune des autres parties (17, 22) de l'évaporateur par une traverse de liaison (18, 23) dotée de canaux (15, 25) à fluide frigorifique.
  6. Evaporateur selon l'une des revendications 1 à 5, caractérisé en ce que les parties (17, 22) de plus faible puissance frigorifique de l'évaporateur présentent leur emplacement d'injection (20, 26) essentiellement au milieu, sur le côté de la partie d'évaporateur qui n'est pas tourné vers la partie (11) de plus grande puissance frigorifique de l'évaporateur.
  7. Evaporateur selon la revendication 6, caractérisé en ce que les deux parties (17, 22) de plus faible puissance frigorifique de l'évaporateur sont fixées l'une à l'autre par une traverse de maintien (28) prévue entre leurs côtés voisins.
EP96101434A 1995-03-16 1996-02-01 Evaporateur, particulièrement pour des réfrigérateurs ménagers à compresseur Expired - Lifetime EP0732554B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19509571 1995-03-16
DE19509571A DE19509571A1 (de) 1995-03-16 1995-03-16 Verdampfer, insbesondere für kompressorbetriebene Haushalt-Kältegeräte

Publications (3)

Publication Number Publication Date
EP0732554A2 EP0732554A2 (fr) 1996-09-18
EP0732554A3 EP0732554A3 (fr) 1997-03-12
EP0732554B1 true EP0732554B1 (fr) 2000-11-22

Family

ID=7756863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101434A Expired - Lifetime EP0732554B1 (fr) 1995-03-16 1996-02-01 Evaporateur, particulièrement pour des réfrigérateurs ménagers à compresseur

Country Status (4)

Country Link
EP (1) EP0732554B1 (fr)
DE (2) DE19509571A1 (fr)
ES (1) ES2153506T3 (fr)
TR (1) TR199600151A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1296073B1 (it) * 1997-11-06 1999-06-09 Whirlpool Co Metodo per ottenere un evaporatore monopezzo per circuiti frigorigeni ed evaporatore ottenuto

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB856477A (en) * 1958-06-30 1960-12-14 Gen Motors Corp Improvements in or relating to refrigerators, and to methods of making evaporators therefor
DE1809673A1 (de) * 1968-11-19 1970-06-04 Ver Deutsche Metallwerke Ag Plattenverdampfer mit mehreren Waermeaustauschern
DE3741140C1 (en) * 1987-12-04 1989-06-08 Schmoele Metall R & G Cooling plate
DE3804863A1 (de) * 1988-02-17 1989-08-31 Schmoele Metall R & G Kuehlplatine fuer einen kuehlschrank
DE4141641A1 (de) * 1991-12-17 1993-06-24 Bosch Siemens Hausgeraete Zweitemperaturen-einkreiskuehlgeraet
DE4242776A1 (de) * 1992-12-17 1994-06-23 Bosch Siemens Hausgeraete Kühlgerät, insbesondere Mehrtemperaturen-Kühlgerät
DE29504538U1 (de) * 1995-03-16 1995-05-18 Bosch Siemens Hausgeraete Verdampferanordnung, insbesondere verdichterbetriebene Haushalts-Kältegeräte

Also Published As

Publication number Publication date
EP0732554A3 (fr) 1997-03-12
DE59606153D1 (de) 2000-12-28
EP0732554A2 (fr) 1996-09-18
DE19509571A1 (de) 1996-09-19
TR199600151A2 (tr) 1996-11-21
ES2153506T3 (es) 2001-03-01

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