EP2567168A1 - Appareil frigorifique et évaporateur associé - Google Patents

Appareil frigorifique et évaporateur associé

Info

Publication number
EP2567168A1
EP2567168A1 EP11715491A EP11715491A EP2567168A1 EP 2567168 A1 EP2567168 A1 EP 2567168A1 EP 11715491 A EP11715491 A EP 11715491A EP 11715491 A EP11715491 A EP 11715491A EP 2567168 A1 EP2567168 A1 EP 2567168A1
Authority
EP
European Patent Office
Prior art keywords
tube
plate
evaporator according
evaporator
distributor plate
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
EP11715491A
Other languages
German (de)
English (en)
Other versions
EP2567168B1 (fr
Inventor
Stefan Holzer
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 EP2567168A1 publication Critical patent/EP2567168A1/fr
Application granted granted Critical
Publication of EP2567168B1 publication Critical patent/EP2567168B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/047—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components

Definitions

  • the present invention relates to a refrigeration device, in particular a domestic refrigerator, and a usable in such a refrigerator evaporator.
  • a refrigeration device in particular a domestic refrigerator
  • a usable in such a refrigerator evaporator conventionally comprises a pipe in which refrigerant circulates, a support plate to which the pipe is fixed and via the one
  • Heat exchange takes place between the tube and an interior of the refrigerator cooled by the evaporator, and a heat spreader layer disposed between the tube and the carrier plate, which provides efficient heat transfer between the carrier plate and the tube.
  • an evaporator of this type is known in which the carrier plate is a freezer compartment trough formed in an inner container of the refrigeration device, around which the tube is wound.
  • the carrier plate is a freezer compartment trough formed in an inner container of the refrigeration device, around which the tube is wound.
  • metal plates can be placed between the tube and the freezer tray and to tube and
  • Freezer tray be attached with double-sided adhesive tape. Because the
  • Object of the present invention is to provide an evaporator for a refrigerator, which at low cost the conventional evaporator in its thermal
  • the object is achieved by carrying in an evaporator for a refrigerator with a refrigerant pipe, at least one support plate to which the pipe is fixed, and arranged between the pipe and the carrier plate heat spreader plate, the heat spreader plate carries the tube clamping projections.
  • This clamping allows on the one hand a quick mounting of the tube to the heat spreader plate and on the other hand a direct contact between the tube and the heat spreader plate.
  • Heat spreader plate can therefore be omitted.
  • the tube-clamping projections are preferably formed integrally with the distributor plate to allow efficient heat exchange with the tube also over the
  • the heat spreader plate preferably has a concave form-fitting to the pipe concavity.
  • the projections have mutually opposite concave flanks, so that the tube can be clamped between the opposite flanks of two projections.
  • the projections may conveniently be formed as ribs extending along the tube.
  • the distributor plate When the evaporator is to be used for cooling a freezer compartment in a domestic refrigerator, the distributor plate should have a heat transfer coefficient of at least 0.4 Wm "2 K " 1 .
  • the distributor plate is formed from a plastic acted upon by a thermally conductive additive. While spread
  • Plastics such as PS or PE in pure form typically have values of
  • Plastic at least 1.5 Wm “1 K " 1 , better still at least 2 Wm “1 K " 1 .
  • Such thermal conductivity is easily accessible using graphite as a heat-conducting additive.
  • the graphite additive should preferably be at least 100 mg per cm 2 of the area of the distribution plate, preferably at least 200 mg per cm 2 of plate area.
  • Distributor plate but at the same time it affects - in particular when the projections are integrally formed with the distributor plate - the clamping force with which the tube is pressed against the distributor plate. It may therefore also be useful to use a metal powder as an additive that does not significantly affect the strength of the distributor plate. Although the metal powder can be abrasive on when forming the distributor plate used
  • Injection tools act, but can be counteracted by the simultaneous use of graphite by its lubricating effect.
  • the support plate may at the same time be a wall of an inner container, in particular of the freezer compartment, in a refrigerator according to the invention.
  • the use of the distributor plate is particularly advantageous when the carrier plate is the rear wall of the inner container, since a portion of the tube extending over the rear wall can not be fixed by wrapping around the inner container.
  • the invention is also applicable to an evaporator, the support plate is arranged freely in an interior of the refrigerator.
  • FIG. 1 shows a schematic cross section through a household refrigerator according to the
  • FIG. 2 shows a section through a wall of the freezer compartment of the refrigerator of Figure 1 according to a first embodiment.
  • FIG 3 shows a section through a wall of the freezer compartment of the refrigerator of Figure 1 according to a second embodiment.
  • FIG. 4 shows a section through a wall of the freezer compartment of the refrigerator of Figure 1 according to a third embodiment.
  • Fig. 5 is a schematic perspective view of a freezer compartment inner container with an evaporator according to a fourth embodiment of the invention.
  • Fig. 1 shows a section through a combination household refrigeration appliance with a body 1, a normal refrigeration compartment 2, a freezer compartment 3 and doors 4, 5 for closing the two compartments 2, 3.
  • the compartments 2, 3 are in a conventional manner by Plastic deep-drawn inner container delimited by a surrounding insulating material layer 6.
  • the inner containers are each box-shaped with a door 4 or 5 open toward the front, a rear wall 7, ceiling floor and side walls 8, 9 and 10 respectively.
  • the insulating material layer 6 facing outer sides of the walls 8, 9, 10 of the inner container of the freezer compartment 3 are made with a graphite foil or
  • the foil may be glued individually piece by piece to each wall 8, 9, 10, or it may be wound in one piece around all four walls 8, 9, 10.
  • Heat distribution plate 12 is fixed in two compartments 2, 3 on one of the insulation material layer 6 facing outside of the rear wall 7 by means of large-surface-mounted double-sided adhesive tape or other suitable adhesive.
  • the refrigerant tube 1 1 is connected in series with a tube 20 which is in close contact with the film helically over the walls 8, 9, 10 of the Inner container extends.
  • Fig. 2 shows a section through the rear wall 7, the heat spreader plate 12 and attached to her tube 1 1 of the normal refrigeration compartment 2 or the freezer compartment 3 in section along a vertical plane.
  • the tube 1 1 extends on the distributor plate 12 in a plurality of meanders with horizontally oriented rectilinear segments 13 and the segments 13 in series semicircular arches 14.
  • the segments 13 are attached to the distributor plate 12 by means of hooks 15 which are integral with the distributor plate 12th are injection molded.
  • the hooks 15 are circular arc-shaped with a radius of curvature which is slightly smaller than the radius of the tube 1 1 in the relaxed state, so that when the tube 1 1 is mounted as shown, the hooks 15 are under tension, close to the
  • FIG. 2 In the upper part of Fig. 2, two hooks 15 are shown, on which no segment 13 of the tube 1 1 is mounted. It can be seen here a channel 16 which is formed in the surface of the distributor plate 12 following the intended course of the tube 1 1.
  • the radius of curvature of the cross-sectionally circular channel 16 corresponds to that of the tube segments 13, so that when the tube 1 1 is mounted, a tube segment 13 held by the hooks 15 contacts the distributor plate 12 over the entire surface of the channel 16.
  • This and the lack of a poorly heat-conductive adhesive layer between the tube 1 1 and the distributor plate 12 ensures efficient heat exchange between the tube 1 1 and the distributor plate 12th Particularly easy to shape is the distributor plate 12, when the hook 15 respectively
  • Openings 17 of the plate are opposite, as shown in Fig. 3.
  • the distributor plate 12 including the hooks 15 is a simple mold with two mutually movable parts, one of which the inner container wall 7 facing side of the distributor plate 12 and, with the aid of through the openings 17 cross-projections, the inner sides of the hook 15th and the other forms the insulating material layer 6 facing side of the distributor plate 12 and the outer sides of the hooks 15.
  • FIG. 4 shows, in a view analogous to FIGS. 2 and 3, a preferred development of the invention.
  • the hooks 15 are here replaced by protruding from the distributor plate 12, in pairs opposite ribs 18.
  • the ribs 18 extend in the horizontal direction in each case over the entire length of a straight segment 13 of the tube 1 first Concave flanks 19 on the mutually facing sides of the ribs 18 nestle closely to the tube 1 1 and allow an efficient
  • the distributor plate 12 In order to uniformly cool the rear wall 7 over its entire area covered by the distributor plate 12, the distributor plate 12 must conduct heat better than in the case of the heat exchanger
  • Refrigeration equipment hitherto widespread pure plastics do so.
  • a good heat-conductive additive in particular polystyrene with added graphite.
  • the graphite additive for this purpose is preferably at least 100 mg per cm 2 area of the distributor plate 12, better still at least 200 mg graphite / cm 2 . It is also conceivable, the required thermal conductivity by an addition of
  • Metal powder for example, aluminum powder to realize the plastic of the distributor plate 12.
  • metal powder instead of graphite one can be used.
  • Fig. 5 shows in a perspective view obliquely from below a freezer compartment inner container according to a further development of the present invention.
  • Ceiling, bottom and side walls 8, 9, 10 of the inner container are coated with a graphite-containing foil, which like the distribution plate 12 described above as a
  • the graphite-containing film may consist of substantially pure graphite.
  • Plastic film is embedded, or a one-layer made of a plastic material with a high added Graphitanteil and accordingly soft film.
  • the freezer can be cooled from five sides at the same time, only on its open front can still penetrate heat.
  • a second plate 21 made of graphite-containing plastic is attached here. It may be glued to the graphite-containing foil, or the foil is recessed in the area occupied by the plate 21.
  • a segment 22 of the tube 20 wound around the walls 8, 9, 10 extends over the distributor plate 21 in the longitudinal direction.
  • pairs of ribs 18 are formed, which clamp between them to the tube segment 22 parallel tube segments 23, 24.
  • These tube segments 23, 24 are connected to each other and to one end of the helically wound around the walls of the tube 20 via arches 25, 26.
  • Pipe 28 provides a connection to the extending over the rear wall 7 pipe 1 1 ago.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne un évaporateur pour un appareil frigorifique, comprenant un tube (11) guidant un fluide frigorigène, au moins une plaque de support (7) sur laquelle est fixé le tube (11), et une plaque de dissipation de chaleur (12) disposée entre le tube (11) et la plaque de support (7), comportant des parties saillantes (18) qui bloquent le tube (11).
EP11715491.4A 2010-05-04 2011-04-14 Appareil frigorifique et évaporateur associé Not-in-force EP2567168B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010028526A DE102010028526A1 (de) 2010-05-04 2010-05-04 Kältegerät und Verdampfer dafür
PCT/EP2011/055939 WO2011138145A1 (fr) 2010-05-04 2011-04-14 Appareil frigorifique et évaporateur associé

Publications (2)

Publication Number Publication Date
EP2567168A1 true EP2567168A1 (fr) 2013-03-13
EP2567168B1 EP2567168B1 (fr) 2014-03-05

Family

ID=44510880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11715491.4A Not-in-force EP2567168B1 (fr) 2010-05-04 2011-04-14 Appareil frigorifique et évaporateur associé

Country Status (5)

Country Link
EP (1) EP2567168B1 (fr)
CN (1) CN102985778B (fr)
DE (1) DE102010028526A1 (fr)
RU (1) RU2529302C2 (fr)
WO (1) WO2011138145A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100192A1 (de) * 2011-05-02 2012-11-08 Liebherr-Hausgeräte Ochsenhausen GmbH Wärmeübertrager und Kühl- und/oder Gefriergerät mit einem Wärmeübertrager
DE102011101343A1 (de) * 2011-05-12 2012-11-15 Liebherr-Hausgeräte Ochsenhausen GmbH Verdampferplatine
EP2881689A1 (fr) 2013-12-03 2015-06-10 Electrolux Appliances Aktiebolag Appareil de réfrigération doté d'un revêtement interne conducteur
DE102014210679A1 (de) * 2014-06-05 2015-12-17 BSH Hausgeräte GmbH Kältegerät mit einem Verdampfer
CN104990313A (zh) * 2015-07-10 2015-10-21 合肥美菱股份有限公司 一种外露式冰箱蒸发器
KR102474750B1 (ko) * 2016-03-22 2022-12-06 엘지전자 주식회사 증발기 및 이를 구비하는 냉장고
CN106440539A (zh) * 2016-10-25 2017-02-22 苏州泰隆制冷有限公司 一种新型管板式冰箱蒸发器
DE102017204738A1 (de) 2017-03-21 2018-09-27 BSH Hausgeräte GmbH Wärmetauscher und damit ausgestattetes Kältegerät
DE102017211285A1 (de) * 2017-07-03 2019-01-03 BSH Hausgeräte GmbH Kältegerät
CN114127499A (zh) * 2019-06-28 2022-03-01 泰而勒商业食品服务有限公司 各个室由传热化合物邻接的储存和分配食物的系统和方法
CN111023864A (zh) * 2019-11-29 2020-04-17 全椒赛德利机械有限公司 一种冷却管加固型发动机散热器
EP4030118A1 (fr) * 2021-01-19 2022-07-20 Secop GmbH Unité de refroidissement

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WO2003091636A1 (fr) * 2002-04-26 2003-11-06 BSH Bosch und Siemens Hausgeräte GmbH Echangeur de chaleur pour appareil de refrigeration, et procede de realisation d'un echangeur de chaleur
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KR100529892B1 (ko) * 2003-03-17 2005-11-22 엘지전자 주식회사 냉장고
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Also Published As

Publication number Publication date
CN102985778B (zh) 2016-02-17
RU2012147338A (ru) 2014-06-10
EP2567168B1 (fr) 2014-03-05
RU2529302C2 (ru) 2014-09-27
CN102985778A (zh) 2013-03-20
DE102010028526A1 (de) 2011-11-10
WO2011138145A1 (fr) 2011-11-10

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