Classifications

• • 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
  • A47F3/0434—Glass or transparent panels
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
  • E06B3/301—Coverings, e.g. protecting against weather, for decorative purposes consisting of prefabricated profiled members or glass
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
  • E06B3/6617—Units comprising two or more parallel glass or like panes permanently secured together one of the panes being larger than another
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C15/00—Details
  • F24C15/02—Doors specially adapted for stoves or ranges
  • F24C15/021—Doors specially adapted for stoves or ranges sealings for doors or transparent panel
• • 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
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/04—Wing frames not characterised by the manner of movement
  • E06B3/263—Frames with special provision for insulation
  • E06B2003/26349—Details of insulating strips
  • E06B2003/26379—Specific characteristics concerning the disposition between the metal section members
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/54—Fixing of glass panes or like plates
  • E06B3/5427—Fixing of glass panes or like plates the panes mounted flush with the surrounding frame or with the surrounding panes
• • 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
  • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
  • F25D2400/18—Aesthetic features

Definitions

• the present invention relates to a door, in particular for a household appliance, which is equipped with heat-insulating glazing.
• a refrigerator with an insulated glass door is e.g. known from US-A-5 622 414.
• the door of this refrigeration device is essentially made up of two glass plates which are held at a fixed distance from one another by spacers, of which the outer part protrudes a little way beyond the inner part in order to create a surface for a hinge to swing the door up.
• the spacer is also extended beyond the edge of the inner plate in order to form a contact surface to which a plate of the hinge can be screwed. Since the hinge plate and the spacer generally have to be made of metal for reasons of mechanical stability, the door has a poor thermal insulation effect in this edge region. There is therefore a risk of condensation forming on the outside of this poorly insulated area of the door, which, if not removed, can lead to damage.
• condensation water could be avoided by electrical heating with the help of heating wires attached to the surface of the outer glass plate, but such a heating increases both the manufacturing costs of the device and, due to increased heat input, precisely at a weak point in the thermal insulation, the power consumption of the device during operation and thus its operating costs.
• a heat insulating door for a domestic appliance with the features of the preamble of claim 1 is known.
• This door comprises a sheet metal frame which is flush on the outside with a front glass plate and into which an opening is cut in which a smaller, inner plate is fastened.
• this door is primarily described as a door for an oven, it should also be suitable for refrigeration devices. If you would actually use such a door in a refrigerator, there would also be the problem here that the heat conduction of the the cooling zone of the refrigerator adjacent frame would lead to condensation on the exposed outer surfaces of the frame. The poor thermal insulation effect of the frame would also lead to high energy consumption by the refrigerator.
• the object of the present invention is to create a door for a household appliance with large-area insulating glazing, which has a good thermal insulation effect and is also particularly suitable for use in refrigeration appliances.
• the object is achieved by a door with the features of claim 1.
• the frame By dividing the frame into an outer frame part which carries the outer pane, an inner frame part which, when the door is mounted in a household appliance, together with an inner pane the interior closes, and an intermediate thermal insulation element, the insulation capacity of the frame is significantly improved and condensation is prevented.
• the frame does not extend beyond the edge of the outer pane, so that it is not visible to an observer looking at the door from the front, and the impression is given that the door is essentially through the outer disc is formed.
• the frame is preferably connected to the outer pane by gluing.
• the outer pane is provided with an opaque decoration, at least in its edge region.
• the decor is preferably attached to the surface of the outer pane facing the inner pane.
• a gap between the inner pane and the frame is preferably filled by a compressible sealing strip.
• This sealing strip is expediently attached between the inner pane and the inner frame part.
• the thermal insulation element is preferably a plastic profile element which positively engages in grooves of at least the outer frame part. In order to ensure a secure cohesion between the frame part and the insulation element, the grooves are at least locally undercut.
• a particularly high insulation effect can be achieved with a thermal insulation element designed as a hollow profile.
• a flexible sealing profile which is provided in order to lie airtight on the body of the household appliance when a closed door is mounted on a household appliance and thus to seal the interior thereof, is preferably held in a groove in the frame which is at least limited by the inner frame part and the thermal insulation element ,
• a good insulation effect with a small thickness of the door can be achieved if the inner frame part, the thermal insulation element and the outer frame part do not or not only in the thickness direction of the door, but above all transversely to it, in a plane parallel to the inner pane, from the inside adjoin to the outside.
• Fig. 1 is a perspective view of a wine storage cabinet as an example of a
• Fig. 2 shows a section through an edge region of the door according to a first
• Fig. 3 shows a section through an edge region of the door and adjacent parts of the body of a refrigerator according to a second embodiment of the
• Fig. 1 shows a perspective view of a bottle storage cabinet as an example of a refrigerator with a door according to the invention.
• the body 1 of the bottle storage cabinet can be free-standing or, as shown here, can be designed as a built-in model. While in most built-in refrigeration units, the front of the door is covered by a furniture plate in the installed state, the door 2 of the device shown here is provided in order to remain freely visible in the installed state.
• the outside of the door is formed by a glass plate 3 which is glued to a metal frame 4 on its rear side.
• a metal frame 4 On the frame 4, two hinge brackets 5 are attached to the body 1, of which only the upper one can be seen in the figure.
• An inner glass plate 6 (see FIG. 2 or 3), the edges of which are surrounded by the frame 4, forms an insulating glazing together with the outer glass plate 3.
• the interior of the body 1 is visible through this; a plurality of bottle carriers 7 are arranged therein, each of which is formed by front and rear horizontal carriers 8 and cylindrical segment-shaped shells 9 suspended between the carriers.
• a handle 10 attached to the outer glass plate 3 is screwed through two holes in the glass plate 3 in the frame 4.
• the outer glass plate 3 is here connected to an outer frame part 12 via an adhesive layer 11.
• the outer frame part 12 is composed of four extruded sections, for example made of aluminum, which each extend along an edge region of the outer plate 3.
• the edges of the outer glass plate 3 are each surrounded by a projecting rib 13 of the outer frame part 12, which is flush with the outside of the glass plate 3 and protects the edge from damage.
• a cover profile 14 made of aluminum is attached from the outside to the edge of the glass plate 3 and the outer frame part 12.
• the two legs of the approximately U-shaped cover profile 14 have two flat, inwardly directed ribs 15, 16, one 15 of which presses elastically against the outside of the glass plate 3 and the other 16 into a flat groove on the inside of the outer frame part 12 is engaged.
• the two webs 18 establish a rigid connection to an inner frame part 19, which is provided in the same way with grooves 17, in which the webs 18 engage.
• the inner glass plate 6 is connected at its edges to the inner frame part 19 via an adhesive layer 21.
• the inner glass plate 6 is thus rigidly connected to the outer glass plate 3 via the frame parts 12, 19 and the webs 18, and the air layer enclosed in the gap 22 between them forms an effective insulation on a large part of the surface of the door 2.
• the webs 18 are essentially responsible for the thermal insulation effect, which here, on the one hand due to their small cross-sectional area and on the other hand because they consist of a poorly heat-conducting plastic, represent a considerable heat transfer resistance.
• a further contribution to the insulation effect comes from the fact that the inner frame part 19 and the outer frame part 12 are hollow profile elements in which heat transfer is essentially only possible along the walls.
• a direct contact of cold air from the interior of the storage cabinet with the webs 18 is prevented by a flexible seal 23 which engages and is anchored in a gap 24 defined by the webs 18 between the frame parts 12, 19 and which is known per se Filled on one side facing away from the anchoring on an opposite side with fero-magnetic material, so that it clings tightly to the front of the body 1 by magnetic force when the door is closed.
• the inner frame part 19 shields the seal 23 against the interior of the refrigerator, so that only a small amount of cold air can penetrate from there into a narrow space 25 between the seal 23 and the inner frame part 19.
• FIG. 3 shows a second embodiment of the edge region of a door according to the invention and an adjoining region of the body 1 of the refrigeration device.
• the structure of the door from an outer glass plate 3, an outer frame part 12 composed of aluminum hollow profile elements, which carries the outer glass plate 3 and a hinge, an inner glass plate 6 surrounded by the outer frame part 12 and an inner frame part 19 is the same as in the embodiment of FIG. 2, 3, however, the inner frame part 19 has no supporting function for the inner glass plate 6, but only serves for thermal insulation.
• the inner glass plate 6 is connected to the outer glass plate 3 via a spacer element 26, which is e.g. can be an aluminum profile, as is known from window construction for buildings and which connects the two glass plates 3, 6 hermetically by gluing or cementing.
• the two glass plates 3, 6 and the spacer element 26 can be preassembled using techniques known from insulating glass window construction, and the space between the glass plates 3, 6 can be filled with a known gas with better insulating properties than air.
• an opaque decor 27 e.g. applied by screen printing, which extends from the edge of the pane 3 inwards beyond the spacer element 26 in order to hide this and the frame 4 on the fully assembled door.
• the two frame parts 12, 19, which form the frame 4 are rigidly connected as in the embodiment of FIG. 2 by a plastic profile element, here in the form of a hollow profile 28, which in the grooves 17 of the frame parts 12, 19 positively and non-positively engaging ribs.
• the inner frame part 19 is here separated from the inner glass plate 6 by a gap which is filled by a circumferential foam strand 29.
• the foam strand 29 has, on its side facing the glass plate 6, a plurality of easily deformable ribs 30 which closely seal against the glass plate 6.
• the strand 29 is anchored on the inner frame part 19 by a projection 31 which engages in a form-fitting manner in an undercut groove of the frame part 19.
• a magnetic seal 23 which ensures an airtight connection of the door 2 to the front of the body 1, is anchored in a groove 32, which on the one hand through the inner frame part 19 and on the other hand through a protruding from the hollow profile 28 towards the body 1, at the end thickened rib 33 is formed.
• the magnetic seal 23 has a flexible tongue 34 which, when the door 2 is closed, clings to the rear of the entire length of the outer frame part 12 and thus closes a cavity 35 between the rib 33 and the outer frame part 12 in an airtight manner and thereby additionally to the thermal insulation effect the door contributes in the area of the seal 23.
• the inner frame part 19 has no load-bearing function in this embodiment and is not exposed to strong mechanical loads, it can be made quite thin-walled, which also improves its insulating effect, or it can be made of comparatively better insulating plastic material instead of metal. Another possible modification is to form the inner frame part 19 in one piece with the hollow profile 28 made of plastic.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Refrigerator Housings (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=33482361

Family Applications (1)

Country Status (6)

Cited By (7)

Families Citing this family (29)

Citations (6)

Family Cites Families (21)

• 2003
  • 2003-06-02 DE DE20321760U patent/DE20321760U1/de not_active Expired - Lifetime
  • 2003-06-02 DE DE10324854A patent/DE10324854A1/de not_active Withdrawn
• 2004
  • 2004-06-02 RU RU2005136886/12A patent/RU2347988C2/ru not_active IP Right Cessation
  • 2004-06-02 CN CNB2004800153571A patent/CN100487347C/zh not_active Expired - Fee Related
  • 2004-06-02 WO PCT/EP2004/005943 patent/WO2004106823A1/de active Application Filing
  • 2004-06-02 EP EP04739523.1A patent/EP1639303B1/de not_active Expired - Lifetime
  • 2004-06-02 US US10/558,183 patent/US20060273700A1/en not_active Abandoned

Patent Citations (6)

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