EP1882136A1 - Dispositif de refroidissement pour refroidir l'air ambiant - Google Patents

Dispositif de refroidissement pour refroidir l'air ambiant

Info

Publication number
EP1882136A1
EP1882136A1 EP06743318A EP06743318A EP1882136A1 EP 1882136 A1 EP1882136 A1 EP 1882136A1 EP 06743318 A EP06743318 A EP 06743318A EP 06743318 A EP06743318 A EP 06743318A EP 1882136 A1 EP1882136 A1 EP 1882136A1
Authority
EP
European Patent Office
Prior art keywords
cold air
air supply
wall
refrigerating appliance
appliance according
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
EP06743318A
Other languages
German (de)
English (en)
Other versions
EP1882136B1 (fr
Inventor
Alexander GÖRZ
Hans Ihle
Ralf Spiller
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 EP1882136A1 publication Critical patent/EP1882136A1/fr
Application granted granted Critical
Publication of EP1882136B1 publication Critical patent/EP1882136B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0655—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the top
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F25D2317/0672—Outlet ducts
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type

Definitions

  • the present invention relates to a refrigerator with circulating air cooling, i.e., a
  • Refrigerating appliance in the housing, an evaporator area and a cooling area for receiving refrigerated goods are separated from each other and the cooling area is cooled by supplied from the evaporator section cold air.
  • the supply of cold air to the cooling area can via a so-called
  • the air shower is an opening in a partition wall between the evaporator area and the cooling area, through which the entire cold air stream is supplied to the cooling area. Since the cooling area is usually divided by refrigerated goods in several subjects, there is the problem that the cold air flow pours completely into one of the compartments, which is much more cooled as a result of other, further away from the air shower and shielded by the refrigerated goods Subjects.
  • refrigerators with distribution channels have been developed, i. with channels fed with cold air from the evaporator area, which run along a wall of the cooling area and are provided with openings through which cold air can flow directly into each compartment of the cooling area.
  • variable cold air inflow rates for the individual compartments can be realized to a large extent, so that a desired temperature distribution in the compartments can be achieved independently of the degree of loading.
  • the flow rate of the cold air in such a distribution channel must not be too large, otherwise a powerful fan is needed to drive it, and such a fan whose waste heat must be removed from the device, the energy efficiency is impaired.
  • the object of the present invention is to provide a refrigeration device with convection cooling, which allows to realize a uniform or to a desired extent uneven temperature distribution in a cooling area and thereby avoids the above-stated problems of refrigerators with distribution channels.
  • the object is achieved by a refrigerator with a housing in which a
  • Evaporator area and at least one cooling area are separated from each other, and a fan for driving a cold air flow from the evaporator area in the cooling region via a to a heat-insulating partition wall between evaporator and cooling zone adjacent central inlet opening, in which the central inlet opening on the flow path of the cold air upstream of a distribution device , which branches off a partial air flow into at least one distribution line running along at least one wall of the cooling region, which has openings which are distributed over the height of the wall and open into the cooling region.
  • Cooling area supplied divided cold air flow Part of the cold air flow is supplied via the central inlet opening, via the openings in the distribution line. Due to the aforementioned division of the cold air flow, a uniform temperature distribution is generated within the cold zone. Depending on the design of the distribution device, cold air flows can be the same or unequal volume flow, advantageously the overwhelming part of the cold air flow should escape via the central inlet opening.
  • the distribution device may be formed by a hood which covers a cold air supply opening formed in the partition and at least one of the openings of the distribution line.
  • the distributor device can be formed by an adjustable deflecting flap.
  • the hood forms a flow resistance for through
  • Cold air supply opening passed through the air and forces it at least partially through the covered by her opening into the distribution line.
  • the cold air is distributed at different locations of the first cooling area via the openings of the distribution line which are not covered by the hood.
  • the central inlet opening is formed directly on the hood.
  • a preferred field of application of the invention are refrigerators with two
  • Cooling areas If, in such a refrigeration device, the second cooling area is cooled via a cold air supply line extending from the evaporator area on the first cooling area to the second cooling area in a wall of the housing, the space for a distribution line for distributing the cold air in the first cooling area is particularly scarce in or on the housing wall ,
  • a deflection means is preferably used e.g. in the form of a valve or diverter flap or the like between a position in which it blocks the cold air supply to the distribution device and the cold air supply line releases, and a position in which it releases the cold air supply to the distribution device and the cold air supply line blocks, switchable to the Temperatures of the two cooling areas to regulate independently.
  • the latter is preferably arranged substantially parallel to the flow direction of the cold air through the cold air supply opening, while the flow direction of the cold air through the air passage opening differs from that through the passage opening. Since the cold air supply opening is adjacent to the wall in which the distribution line runs, only a small deflection of the air flow is required to introduce it into the distribution line, and the flow resistance is low.
  • a channel is expediently recessed, in which the cold air supply line and the distribution line are adjacent to each other. If the channel is recessed from the insulating material layer of the rear wall, a solid inner skin of the housing, which separates the Isoliermaterial für from the cooling area, follow the course of the recess, so that for delimiting the channel against the cooling area, a recess bridging cover profile is required.
  • the channel is recessed only in the insulating material layer, and the inner skin bridges the channel.
  • Rear wall and two contacting the inner skin contacting side walls which separates the channel of the insulating material layer and thus prevents that when the insulating material layer is generated by expanding a polymer material into a foam between the inner and outer skin of the wall, this foam also penetrates into the channel or fill it.
  • the extruded profile can withstand the pressure of the expanding foam better, at least one extending to the inner skin web is formed on its rear wall.
  • a layer of insulating material disposed between the inner skin and the cold air supply line ensures thermal separation between the air flowing in the cold air supply line and the first cooling area so that it is not undesirably cooled when cold air flows through this line to the second cooling area ,
  • the layer is preferably part of an angle profile, particularly preferably a U-profile, which also extends between the cold air supply line and the distribution line, to ensure a thermal separation between them.
  • the valve for selectively supplying cold air to the cold air supply line and the cold air supply opening preferably comprises a flap, which is hinged to a partition wall between the two.
  • Figure 1 is a perspective view obliquely from below of the body of a refrigerator according to the invention.
  • FIG. 2 shows a section through a vertically and in the depth direction extending center plane of the body along the line II of Fig. 1.
  • Figure 3 is a section through the upper portion of the body in a plane offset from the median plane to the side along the line III of Fig. 1.
  • Fig. 4 is a perspective view of the hood disposed at the cold air supply opening.
  • Fig. 5 is a horizontal partial section through the rear wall of the body of the refrigerator.
  • Fig. 1 shows a perspective view of a body 1 of a refrigerator according to the invention.
  • the device has a door, which is omitted in the figure.
  • the interior of the body 1 is subdivided into an evaporator area 2 at the top under the ceiling of the carcass, a first cooling area 3 and, by means of this, by an insulating intermediate wall 4 separated, a second cooling area 5.
  • a drawer is housed.
  • the first cooling area 3 is normally subdivided by a plurality of refrigerated goods carriers into compartments lying one above the other, which however are omitted in the figure in order to be able to show the rear wall 6 of the body 1 as large as possible.
  • an air inlet opening 8 is formed, can enter through the air from the first cooling region 3 in the evaporator section 2. Lines through which air can flow from the second cooling area 5 to the evaporator area 2 can-not visible in the figure-extend in side walls of the body 1; Another possibility is an air line inside the door, which begins at the level of the second cooling area 5 and ends opposite the air inlet opening 8.
  • a distributor hood 9 Adjacent to the rear wall 6, a distributor hood 9 is fixed to the intermediate wall 7, on which a plurality of air holes 10 is formed, through which cold air originating from the evaporator region 2 is distributed in the upper part of the first cooling region 3 in various directions. Below the distributor hood 9 are located on the rear wall 6 a plurality of pairs of openings 1 1, from which also cold air can flow out. The height of these pairs of openings is chosen so that, when refrigerated goods carriers are mounted in the first cooling area 3, each pair of openings 11 feeds a compartment.
  • Fig. 2 shows the refrigerator of Fig. 1 in a section along a vertically and in the depth direction of the body 1 extending center plane, which is shown in Fig. 1 by a dashed line II.
  • cooling coils of an evaporator 12 can be seen in the section, which are flowed through by air entering through the air inlet opening 8.
  • the intermediate wall 7 is down to the rear wall 6 of the body down to a channel 13, in which collects from the evaporator 12 dripping condensate. Via a pipe, not shown, the condensate reaches a in the base region 14 (see Fig. 1) of the body 1 housed evaporator.
  • a fan is housed, which comprises a motor 15, a paddle wheel 16 driven by this and a housing 17.
  • a housing 17 At the front of the housing 17, in the axial direction of the impeller, an intake opening is formed.
  • the upper half of the housing 17 extends in the circumferential direction closely around the impeller 16, down the housing 17 is open, so that by a rotation of the impeller 16 radially outwardly accelerated air flows down into a chamber 18.
  • a pivotable flap 19 is housed in this chamber 18 . In the position shown in the figure, the flap 19 blocks a
  • Fig. 3 shows a section through the upper part of the body 1 along the plane designated III in Fig. 1.
  • the arcuately extending around the impeller 16 housing 17 can be seen.
  • the rear wall 6 facing side of the distributor hood 9 has an opening 24 which is in alignment with an opening of the rear wall 6, which leads to a vertically extending in the rear wall 6 distribution line 25.
  • One of the several other openings 1 1 leading from the distribution line 25 into the first cooling area 3 can likewise be seen.
  • Fig. 4 shows a perspective view of the distributor hood 9. It is composed of a rigid outer skin 26, on which a plurality of pins 27 are integrally formed for locking to the intermediate wall 7, a first layer of expanded foam 28, the inside the outer skin 26 abuts and may be integrally formed therewith, and a second foam body 29.
  • the layer 28 and the foam body 29 form at the top of the hood 9 a aligned with the cold air supply opening 20 fürse 30, and at the viewer facing the back of the hood 9, bounded by the layer 28 and the body 29, two openings 24 are seen, each leading to one of two manifolds 25 extending in the back wall 6 adjacent to the cold air supply line 21.
  • Fig. 5 shows a section through the rear wall 6 of the body 1 at the level indicated in Fig. 3 with VV line.
  • the rear wall is constructed of a rigid inner skin 31, which, deep drawn from a plastic plate, the interior of the body 1 in one piece, an outer skin 32 and a layer 33 of foamed insulating material. From the layer 33, a vertical channel 34 is recessed, which is delimited from the insulating layer 33 by a plastic extruded profile 35.
  • the extruded profile 35 has a rear wall 36, extending from the edges of the rear wall 36 to the inner skin 31 side walls 37 and at the edges of the inner skin 31 foam-tight glued elongated Flanges 38.
  • ribs 39 each extend to the already mentioned, as a flat, U-shaped profile shaped insulating layer 22 and are based on this against the pressure acting on the back of the wall 36 during the expansion of the insulating foam layer 33 from ,
  • the ribs 39 divide here together with the insulating layer 22, the channel 34 in a total of five parallel lines, of which the two outer each form a manifold 25 and represent the three inner the cold air supply line 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

Selon l'invention, le boîtier (1) d'un dispositif de refroidissement comprend une zone de vaporisation (2) et au moins une zone de refroidissement (3) qui sont séparées l'une de l'autre. Un ventilateur entraîne un courant d'air froid de la zone d'évaporation vers l'intérieur de la zone de refroidissement (3) en passant par une ouverture d'entrée centrale (10) voisine d'une paroi de séparation (7) thermiquement isolante, située entre la zone d'évaporation (2) et la zone de refroidissement (3). En amont de l'ouverture d'entrée centrale (10), sur la trajectoire de circulation de l'air froid, se trouve un dispositif de répartition qui dévie une flux d'air partiel dans au moins une conduite de répartition (25) qui s'étend le long d'au moins une paroi de la zone de refroidissement (3) et présente des ouverture (11) qui sont réparties sur la hauteur de la paroi et débouchent dans la zone de refroidissement (3).
EP06743318.5A 2005-05-10 2006-04-18 Dispositif de refroidissement pour refroidir l'air ambiant Active EP1882136B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021557A DE102005021557A1 (de) 2005-05-10 2005-05-10 Kältegerät mit Umluftkühlung
PCT/EP2006/061637 WO2006120110A1 (fr) 2005-05-10 2006-04-18 Dispositif de refroidissement pour refroidir l'air ambiant

Publications (2)

Publication Number Publication Date
EP1882136A1 true EP1882136A1 (fr) 2008-01-30
EP1882136B1 EP1882136B1 (fr) 2018-06-13

Family

ID=36782552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06743318.5A Active EP1882136B1 (fr) 2005-05-10 2006-04-18 Dispositif de refroidissement pour refroidir l'air ambiant

Country Status (6)

Country Link
US (1) US7870756B2 (fr)
EP (1) EP1882136B1 (fr)
CN (2) CN100561084C (fr)
DE (1) DE102005021557A1 (fr)
RU (1) RU2392550C2 (fr)
WO (1) WO2006120110A1 (fr)

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US9010145B2 (en) * 2009-06-01 2015-04-21 Samsung Electronics Co., Ltd. Refrigerator
DE102010042240A1 (de) 2010-10-08 2012-04-12 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät
CN102997546A (zh) * 2011-09-19 2013-03-27 博西华电器（江苏）有限公司 家用冰箱
DE102012206806A1 (de) * 2012-04-25 2013-10-31 BSH Bosch und Siemens Hausgeräte GmbH Einkreis-Kältegerät und Betriebsverfahren dafür
US20140202444A1 (en) * 2013-01-23 2014-07-24 Standex International Corporation Vortex shedding heat transfer method and apparatus
JP6168980B2 (ja) * 2013-12-18 2017-07-26 三菱電機株式会社 冷蔵庫
CN106813440B (zh) * 2015-11-27 2019-10-29 日立环球生活方案株式会社 冰箱
KR102375122B1 (ko) * 2017-08-03 2022-03-17 엘지전자 주식회사 냉장고
CN107642939B (zh) * 2017-11-01 2020-07-10 南京创维家用电器有限公司 一种冰箱冷冻风道组件及冰箱
CN110150912B (zh) * 2019-06-17 2022-03-04 河南千年冷链设备有限公司 一种直冷服务式冷藏陈列柜

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Also Published As

Publication number Publication date
CN101171474B (zh) 2011-06-29
WO2006120110A1 (fr) 2006-11-16
EP1882136B1 (fr) 2018-06-13
CN101175956A (zh) 2008-05-07
RU2392550C2 (ru) 2010-06-20
DE102005021557A1 (de) 2006-11-16
US20090038336A1 (en) 2009-02-12
US7870756B2 (en) 2011-01-18
RU2007137540A (ru) 2009-06-20
CN101171474A (zh) 2008-04-30
CN100561084C (zh) 2009-11-18

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