EP2146165A2 - Kühl- und/oder Gefriergerät - Google Patents

Kühl- und/oder Gefriergerät Download PDF

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Publication number
EP2146165A2
EP2146165A2 EP20090009167 EP09009167A EP2146165A2 EP 2146165 A2 EP2146165 A2 EP 2146165A2 EP 20090009167 EP20090009167 EP 20090009167 EP 09009167 A EP09009167 A EP 09009167A EP 2146165 A2 EP2146165 A2 EP 2146165A2
Authority
EP
European Patent Office
Prior art keywords
door
hot air
frame
cooling
disc
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.)
Withdrawn
Application number
EP20090009167
Other languages
German (de)
English (en)
French (fr)
Inventor
Richard Ing. Stocker
Richard Ing. Simoner
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.)
Liebherr Hausgeraete Lienz GmbH
Original Assignee
Liebherr Hausgeraete Lienz 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 Liebherr Hausgeraete Lienz GmbH filed Critical Liebherr Hausgeraete Lienz GmbH
Publication of EP2146165A2 publication Critical patent/EP2146165A2/de
Withdrawn legal-status Critical Current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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0426—Details
    • 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
    • F25D23/02—Doors; Covers

Definitions

  • the present invention relates to a refrigerator and / or freezer with at least one door having a transparent and / or translucent pane, preferably a glass pane.
  • Such refrigerators and / or freezers are known in numerous different embodiments. Especially at high humidity, it may come to the condensation of the doors or door panes, this condensation is physically most pronounced at the point where the coldest area of the device is. This is usually the lower portion of the door or the disc of the door. In general, the said condensation occurs in particular in the lower third of the door or door glass.
  • the present invention is therefore the object of developing a refrigerator and / or freezer of the type mentioned in such a way that the condensation is effectively prevented or reduced with relatively simple means.
  • the device has a hot air source or is in communication with a source of hot air and that the device further comprises air guide means which are directly or indirectly with the hot air source in communication and which are arranged such that the hot air through the air guide means on the Disc and / or at least in the area of the disc is passed.
  • the door of the device or the disc which may be embodied for example as glass or as a plastic disc, not or not only by means of electric heating, but by means of a warm air flow is heated.
  • the heating of the disc and thus the prevention of condensation takes place exclusively or at least by means of a warm air flow.
  • the hot air source is formed by a component of the refrigerant circuit, preferably by the condenser and / or by the compressor of the device.
  • These components generate waste heat, which can be used to generate the hot air.
  • the heated by the waste heat of these components air can then be performed by means of suitable air guide means, for example by means of a fan and an air duct located in the device and / or in the door or in the region of the disc. Since in this case the warm air is due to the waste heat from Condenser and / or produced by the compressor or other heat-generating components of the device, there is no additional negative impact on the energy balance of the device.
  • the air guide means are arranged such that they are at least partially formed by the frame of the door.
  • the frame can thus be designed, for example, as a hollow profile, is guided by the hot air.
  • the door has at least one hot air inlet through which hot air can be introduced into at least one cavity located in the door.
  • the door may further comprise at least one hot air outlet. This is preferably in communication with said hot air inlet of the door.
  • the purpose of the hot air outlet is to direct the warm air to the glass or into the area of the glass, thereby heating the glass or the layer of air in the area of the glass to prevent or reduce condensation on the glass.
  • the hot air inlet of the door can be arranged such that the hot air is guided from the outside to the disc or from the outside into the region of the disc. It is conceivable, however, in principle, for example, in the case of double glazing to introduce the warm air between the two panes of double glazing.
  • the warm air inlet of the door and / or the hot air outlet of the door are arranged in the frame of the door.
  • the warm air outlet of the door is arranged in the lower region of the door, since there is to be expected in the first place with the condensation of the disc.
  • the warm air inlet can be arranged in the upper area of the door. Basically, however, are deviating arrangements, For example, a lateral introduction of hot air in the door or in the door frame or one or more laterally disposed hot air outlets conceivable.
  • the hot air inlet of the door and the hot air outlet of the door may communicate with each other via one or more hollow chambers of the frame of the door.
  • the door has an upper part, a lower part and two side parts connecting them and that at least one of the hollow chambers is provided in one or in each of the side parts ,
  • the hot air introduced into the top of the door is passed through the hollow chambers of the frame running on both sides to the hot air outlet, which is preferably arranged at the bottom, and passes from there into the area of the pane in a suitable manner.
  • the appliance body may include at least one air outlet disposed relative to the air inlet of the door with the door closed, such that the hot air flows from the air outlet of the appliance body to the air inlet of the door.
  • the air outlet of the device body with the hot air source which, as stated above, for example, by the compressor, by the condenser, etc., is suitably z. B. via an air duct, etc. in connection, so that the warm air formed there can preferably be guided by means of a blower to the hot air outlet of the device body and from there to the hot air inlet of the door.
  • a seal is arranged, which seals the transition between the air outlet of the device body and the air inlet of the door at least when the door is closed.
  • the door may have a condensation drain. It is conceivable, for example, in the lower frame part of the door to integrate a condensate drain in the form of a recess to drain the penetrating into the frame profile condensate.
  • door is not limited to a pivotable about a vertical closure element, but also includes a closure element which is pivotable about a horizontal axis, d. H. a flap etc.
  • the term “door” is thus to be interpreted generally and includes pivotable about a vertical pivot axis doors in the true sense as well as flaps, sliding lid, etc. of refrigerators and / or freezers.
  • FIG. 1 shows the door 10 of the refrigerator and / or freezer according to the invention in different views.
  • FIG. 1b is a view of the door 10 seen from the front.
  • the door 10 consists of a door frame 12 in which a glass pane 20 is located.
  • the disk 20 does not necessarily have to be a glass pane.
  • Other transparent or translucent panes, such as plastic panes, etc. come into consideration.
  • the frame 12 may be constructed, for manufacturing and cost reasons, for example, as an extrusion profile.
  • a material for example, aluminum or plastic come into consideration. The use of other materials is conceivable.
  • the individual frame parts ie the upper part 121, the lower part 122 and the side parts 123, 124 mitred and connected by means of suitable corner connectors and optionally with screws to a peripheral frame 12.
  • the upper frame part 121 is designed so that it has a recess 14, in which the warm air can flow.
  • This opening 14 is preferably covered by grille to avoid injury from edges and pollution.
  • the frame parts 121, 122, 123 and 124 are designed as hollow profiles, as exemplified in FIG. 3 for the side part 123 is shown. With the reference numeral 123 'in FIG. 3 the cavity of the frame part 123 is indicated. A corresponding structure, the other frame parts 121, 122 and 124. As further from FIG. 3 shows, sealed in the frame part 123 which is designed as insulating glass package or double glass sheet 20 is added. It consists of an outer glazing 21 and an inner glazing 22nd
  • the frame 12 is circumferentially provided on its side facing the body with a seal 13, as is also made FIG. 3 evident.
  • the frame parts 121, 122, 123 and 124 which are designed as hollow profiles, thus serve simultaneously as air channels and direct the air flow in the example shown here on both sides of the frame 12 down.
  • the lower part 122 of the frame 12 may be constructed, for example, as a multi-part or one-piece injection molded part.
  • d, e shows the door in a side view, in plan view and in a sectional view along the line AA in FIG. 1b show, the air outlet 16 of the door is upstream of such that it projects from the disc 20 and the outer pane 21 of the door.
  • the air thus flows upwardly from the air outlet 16 to or above the disk 20, as shown in FIG FIG. 4 is indicated, in which the incoming and outgoing hot air flow is designated by the reference numeral 100.
  • FIG. 1a shows the door 10 in a view from below
  • the lower frame member 122 has a condensate discharge 19 in the form of one or more recesses. This applies to the case that a residual condensation of the door, especially the glass pane 20 can not be excluded.
  • the further construction of the door 10 includes an insulating glass package 20, a seal 13 and not shown hinges for mounting the door 10 to a refrigerator. Furthermore, the door has one FIGS. 1b and 1c apparent grip as a separate component or as integrated into the frame 12 component on. Finally, a lock not shown in detail can be integrated into the door 10.
  • the waste heat from the condenser and / or from the compressor is blown into the air inlet 14 at the top of the door in the exemplary embodiment shown here.
  • a non-illustrated sealing element can be used for better function, which fully or partially encloses the air inlet 14 in the closed state of the door.
  • This seal can be arranged on the device body or integrated in the device.
  • the air inlet 14 is connected to a hot air outlet, not shown, of the appliance body in such a way or is arranged relative to it so that the hot air can enter the air inlet 14 from the outlet of the appliance body.
  • the air flow is preferably injected centrally into the door 10 in order to obtain a symmetrical heating of the frame 12 on both sides.
  • a door-mounted air inlet or outlet it is not absolutely necessary to have a door-mounted air inlet or outlet, as it depends on the design boundary conditions or on the septic-critical region.
  • non-central openings with respect to the inlet and outlet can also be advantageous. It would thus also be conceivable, for example, to arrange the air inlet 14 and / or the air outlet 16 alternatively or additionally in the further parts 121, 122, 123, 124 of the frame 12.
  • the air is passed through a hollow chamber system in the frame 12 in the direction of the air outlet 16, which is designed so that the air is blown through its shape as flat as possible and as possible over the entire width of the disc on the glass.
  • the air outlet 16 is arranged in the embodiment shown here below because physically the largest condensation is expected there. If it comes to a residual dewing with water droplets on the glass, this can through the air outlets in the lower frame member 122 flow and is passed there to a condensation water outlet 19, from which it can flow.
  • FIG. 2 shows the door according to the present invention in perspective views and in a plan view.
  • the air inlet 14 is again the air inlet 14, the arrangement of the front of the door 10 located in front of the user 10 upstream or forward offset air outlet 16 and the condensate drain 19 can be seen.
  • the air inlet 14 is arranged centrally in the upper, horizontal frame part 121.
  • the air outlet 16 is located at the lower, also horizontal frame portion 122 and extends over a substantial portion of the disc width.
  • the air outlet 16 may be arranged so that I spread the air as evenly as possible over a substantial part or preferably over the entire width of the disc 20.
  • FIG. 2a shows the door in a perspective view obliquely from above, FIG. 2b from diagonally below and Figure 2c in a top view. How this particular out Figure 2c shows, the hot air outlet 16 against the disc 20 upstream of such that the air flow is guided outside of the disc 20 along.
  • FIG. 4 shows by way of example and indicated by the reference numeral 100, the inflow of hot air through the air inlet 14 into the frame 12 and the outflow of hot air 100 from the air outlet 16 via the front region of the disc 20th

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP20090009167 2008-07-17 2009-07-14 Kühl- und/oder Gefriergerät Withdrawn EP2146165A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008009617 2008-07-17
DE202008012058U DE202008012058U1 (de) 2008-07-17 2008-09-11 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
EP2146165A2 true EP2146165A2 (de) 2010-01-20

Family

ID=41361007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090009167 Withdrawn EP2146165A2 (de) 2008-07-17 2009-07-14 Kühl- und/oder Gefriergerät

Country Status (4)

Country Link
EP (1) EP2146165A2 (zh)
CN (1) CN101644517B (zh)
AU (1) AU2009202865A1 (zh)
DE (1) DE202008012058U1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3699529A1 (en) * 2019-02-25 2020-08-26 LG Electronics Inc. Entrance refrigerator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852436A (zh) * 2012-08-24 2013-01-02 江苏格林电器有限公司 立式冷藏展示柜的门体结构
US9980581B2 (en) 2012-09-24 2018-05-29 Carrier Corporation Refrigerated sales cabinet
BR112018003976B1 (pt) * 2015-09-03 2022-08-30 Agc Glass Europe Porta de armário refrigerado
EP3393306B1 (en) * 2015-12-22 2020-09-16 Carrier Corporation Refrigerated sales furniture
US11512889B2 (en) 2019-02-25 2022-11-29 Lg Electronics Inc. Entrance refrigerator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307373A (en) * 1965-10-22 1967-03-07 John S Booth Transparent refrigerator door control
US4325227A (en) * 1979-03-30 1982-04-20 Tyler Refrigeration Corporation Energy efficient glass door merchandizer
IT1187612B (it) * 1985-12-11 1987-12-23 Costan Spa Mobile refrigerato a vetrata ventialta
US4977754A (en) * 1990-05-01 1990-12-18 Specialty Equipment Companies, Inc. Next-to-be-purchased cold beverage merchandiser
JP2001133125A (ja) * 1999-10-29 2001-05-18 Sanyo Electric Co Ltd 低温ショーケース
JP2008025888A (ja) * 2006-07-19 2008-02-07 Sanyo Electric Co Ltd 低温ショーケース
JP4971710B2 (ja) * 2006-07-21 2012-07-11 三洋電機株式会社 ショーケース

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3699529A1 (en) * 2019-02-25 2020-08-26 LG Electronics Inc. Entrance refrigerator
US11808512B2 (en) 2019-02-25 2023-11-07 Lg Electronics Inc. Entrance refrigerator

Also Published As

Publication number Publication date
AU2009202865A1 (en) 2010-02-04
DE202008012058U1 (de) 2009-11-26
CN101644517A (zh) 2010-02-10
CN101644517B (zh) 2016-01-13

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