EP1624263A2 - Geformte Kühlschranktür - Google Patents
Geformte Kühlschranktür Download PDFInfo
- Publication number
- EP1624263A2 EP1624263A2 EP05106829A EP05106829A EP1624263A2 EP 1624263 A2 EP1624263 A2 EP 1624263A2 EP 05106829 A EP05106829 A EP 05106829A EP 05106829 A EP05106829 A EP 05106829A EP 1624263 A2 EP1624263 A2 EP 1624263A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- surface area
- front surface
- surface areas
- door
- plane
- 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- Withdrawn
Links
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000012774 insulation material Substances 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
Definitions
- Refrigeration appliances such as refrigerators and freezers typically have doors which can be opened to allow a user to access a refrigerated compartment in the interior of the appliance.
- the doors are usually insulated.
- refrigeration appliance doors are formed of a sheet metal material that is bent or drawn into a shape in which the door is provided with a thickness to accommodate the insulation material, among other things.
- the door has a front surface area, and top, left, right and bottom side surface areas formed from sheet metal material.
- the seam or discontinuity is caused by having terminal edges of the surface areas abut one another after being bent into shape, as shown in U.S. Patent No. 4,484,703, which require the extra step of welding (Fig. 14) of the two terminal edges if the seam or discontinuity is to be rendered visually pleasing, or to avoid a leakage point for foam insulation.
- the seam or discontinuity is caused by having folds in the sheet metal material interposed between the two side surface areas, such as shown in U.S. Patent No. 5,121,593. With the use of such folds, the seam or discontinuity between the adjacent side surface areas is visible, and generally must be covered with some type of trim material in order to provide a visually pleasing appearance to the appliance.
- a refrigerated appliance is provided with a door which comprises an outer metal panel having a generally rectangular front surface area lying generally in a first plane, top, left, right and bottom side surface areas formed as extensions from the front surface area, and connected thereto via radiused bends to orient the side surface areas in planes approximately 90 degrees from the plane of the front surface area, without seams or other discontinuities between any of the front or side surface areas.
- flanges extend from each of the top, left, right and bottom sides, the flanges being oriented generally in a plane approximately parallel to the plane of the front surface area, adjacent flanges having overlapping areas which are secured together with fastening elements.
- adjacent ones of each of the side surface areas are joined at bends having radii in the range of 6-20 mm.
- a plastic door liner is engaged with the flanges, and a foamed-in-place insulation material is adhered between the liner and an inner surface of the outer metal panel.
- the front surface has an outwardly convex shape, and in other embodiments, the front surface has a planar shape.
- the side surface areas are joined to the front surface area at bends having a radius in the range of 6-20 mm.
- Figure 1 is a front perspective view of a refrigerator with a door embodying the principles of the present invention.
- Figure 2 is a partial rear elevational view of the door front panel of Fig. 1 with the flanges removed for clarity.
- Figure 3 is a partial rear elevational view of the door front panel of Fig. 1.
- Figure 4 is side sectional view of the complete door of Fig. 1.
- Figure 5 is a partial rear elevational view of bottom corner of the front door panel of Fig. 1.
- the present invention is directed to a door for a refrigeration appliance, such as a refrigerator, freezer, ice maker, or a combination appliance having both a refrigerated (fresh food) compartment and a freezer (frozen food) compartment.
- a refrigeration appliance such as a refrigerator, freezer, ice maker, or a combination appliance having both a refrigerated (fresh food) compartment and a freezer (frozen food) compartment.
- refrigerator or refrigeration appliance will be used to encompass all such devices.
- a refrigerator is shown generally at 20 in Fig. 1.
- there are two side-by-side doors 22, 24 which are hinged to a cabinet of the refrigerator for providing access to a refrigeration and a freezer compartment respectively, as illustrated in U.S. Patent No. 4,528,825.
- Also shown in the freezer door 24 is a recess 26 for providing chilled water and ice.
- Other types of refrigeration appliances are contemplated, such as refrigerator/freezer combination appliances having a top mounted or a bottom mounted freezer compartment (U.S. Patent Nos. 4,732,014 and 5,357,769), a single door refrigerator appliance (U.S. Patent No. 4,649,854) or a single door freezer appliance.
- Other numbers and arrangements of doors are also contemplated (See U.S. Patent No. 5,377,498).
- each door 22, 24 has a front, generally rectangular, surface area 28 formed from an outer metal panel 29, which front surface area lies generally in a first plane, here shown to be a substantially vertical plane.
- a first plane here shown to be a substantially vertical plane.
- the front surface area 28 of the door 20 may lie in a generally horizontal plane.
- the door 20 may be oriented in a plane at an angle between vertical and horizontal.
- the front surface area 28 of the door 20 may be generally planar in shape, or may have a generally outwardly convex shape, as shown in Fig. 1. That is, a portion of the surface area 28 may be at a different elevation relative to the plane of the surface area than other portions, even though the entire surface area lies generally in the plane.
- the front surface area 28 may be slightly rounded or bulging, or the front surface area may have a stepped or bevelled surface configuration.
- the front surface area 28 of the door 20 is formed from the sheet metal panel 29, typically a form of steel such as carbon steel or stainless steel.
- the surface of the sheet metal panel 29 may be smooth or may have a texture applied to it. It may be brushed or painted, or have some other appearance enhancing treatment applied to it.
- the thickness of the sheet metal panel 29 is less than .040 inches (0.1 mm) and most preferred, is less than .030 inches (0.076 mm) in order to reduce weight and cost. Sufficient strength is provided to the door as described below.
- the sheet metal material 29 is preferably acted upon by a drawing die to form a top 32, right 34, left 36 and bottom 38 side surface area of the door 20 as shown in a rear inside view of the door panel in Fig. 2, a partial side sectional view in Fig. 4 and a partial rear perspective view in Fig. 5.
- the side surface areas 32 - 38 are each oriented in a plane that is approximately perpendicular to the plane of the front surface area 28, and are joined to the front surface area at a radius area 39 (Fig. 4) without seams or discontinuities.
- the radius area 39 preferably has a radius in the range of 6 to 20 mm.
- the top 32, right 34, left 36 and bottom 38 side surface areas of the door 20 are formed without any seams or discontinuities between each other.
- the adjacent sides are joined to each other at a radius area 40 (Fig. 2), which has a radius preferably in the range of 6 to 20 mm. In a more preferred embodiment, the radius 40 is in the range of 8 to 12 mm.
- the radius 40 begins to increase above 20 mm, the strength and rigidity of the corner begins to decrease to unacceptable levels, requiring additional support and strengthening members, thereby increasing the weight and cost of the door.
- relatively tight corner radii such as 20 mm or less, the strength and rigidity of the door may be maintained, without the need for additional support structures.
- each of the side surface areas 32 - 38 is also provided with a flange 42, 44, 46, 48 (not shown in Fig. 2 for purposes of clarity).
- the flanges 42 - 48 are bent into a position such that they lie generally in a plane that is perpendicular to their associated side surface area, and generally parallel to the plane of the front surface area 28.
- the flanges are joined to their associated side surface areas at a radius area 49 (Fig. 4), which has a radius preferably in the range of 6 to 20 mm.
- the flanges 42 - 48 also extend in a direction relative to the side surface areas so that they overlie an inner surface 51 of the outer metal panel 29.
- the flanges 42 - 48 each have a length such that as they are folded over, end portions 50, 52 of adjacent flanges overlie each other, and fill the corner areas to the greatest extent possible in order to prevent leakage of liquid foam insulation used during manufacture of the door, as described below, or to avoid or reduce the need for blocking material for the foam.
- This overlap 50, 52 of the flanges 42 - 48 permits the use of a fastening element 54 to secure the adjacent metal flanges together to assist in strengthening the door 20.
- the fastening elements 54 may be interlocking stamped configurations, such as toggle locks, which do not require the use of additional fasteners.
- the fastening elements 54 may also comprise a welding or soldering attachment of the two flange end portions 50, 52. Further, the fastening elements 54 may comprise separate mechanical fasteners, including rivets or threaded fasteners.
- the completed door 20 includes a plastic door liner 56 engaged with the flanges 42 - 48.
- This door liner 56 forms the interior surface of the completed door 20 and may be provided with formed shelves or attachment devices for receiving shelves, as is well known, such as disclosed in U.S. Patent Nos. 5,322,366 and 5,486,045.
- a sealing gasket is attached in the area of the flanges 42-48 for providing a relatively air tight seal between the door and the cabinet, as is well known, such as disclosed in U.S. Patent No 5,369,901.
- a foamed-in-place insulation material 58 is injected into the space between the metal panel 29 and the door liner 56 which expands to fill the space and adheres to the liner 56 and the inner surface 51 of the outer metal panel before it hardens, such as disclosed in U.S. Patent No. 5,704,107.
- the combination of the relatively tight radiused corners of the door panel 29, the flanges 42 - 48 which are secured to one another, the door liner 56 and the foamed-in-place insulation material 58 work together to provide sufficient structural strength and rigidity to the completed door such that no additional lateral or vertical support members are required to prevent the door from sagging, racking or flexing beyond acceptable limits in a normal sized domestic refrigeration appliance, despite the relatively thin material used for the outer metal panel 29.
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)
- Refrigerator Housings (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/912,684 US20060028105A1 (en) | 2004-08-05 | 2004-08-05 | Formed door for refrigerators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1624263A2 true EP1624263A2 (de) | 2006-02-08 |
Family
ID=35427987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05106829A Withdrawn EP1624263A2 (de) | 2004-08-05 | 2005-07-25 | Geformte Kühlschranktür |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20060028105A1 (de) |
| EP (1) | EP1624263A2 (de) |
| CN (1) | CN1731054A (de) |
| AU (1) | AU2005203328A1 (de) |
| BR (1) | BRPI0503271A (de) |
| MX (1) | MXPA05008226A (de) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10018406B2 (en) | 2015-12-28 | 2018-07-10 | Whirlpool Corporation | Multi-layer gas barrier materials for vacuum insulated structure |
| US10030905B2 (en) | 2015-12-29 | 2018-07-24 | Whirlpool Corporation | Method of fabricating a vacuum insulated appliance structure |
| US10041724B2 (en) | 2015-12-08 | 2018-08-07 | Whirlpool Corporation | Methods for dispensing and compacting insulation materials into a vacuum sealed structure |
| US10052819B2 (en) | 2014-02-24 | 2018-08-21 | Whirlpool Corporation | Vacuum packaged 3D vacuum insulated door structure and method therefor using a tooling fixture |
| WO2018160167A1 (en) * | 2017-02-28 | 2018-09-07 | Whirlpool Corporation | Method for rapid encapsulation of a corner gap defined within a corner of a door panel for an appliance |
| US10105931B2 (en) | 2014-02-24 | 2018-10-23 | Whirlpool Corporation | Multi-section core vacuum insulation panels with hybrid barrier film envelope |
| US10161669B2 (en) | 2015-03-05 | 2018-12-25 | Whirlpool Corporation | Attachment arrangement for vacuum insulated door |
| US10222116B2 (en) | 2015-12-08 | 2019-03-05 | Whirlpool Corporation | Method and apparatus for forming a vacuum insulated structure for an appliance having a pressing mechanism incorporated within an insulation delivery system |
| US10345031B2 (en) | 2015-07-01 | 2019-07-09 | Whirlpool Corporation | Split hybrid insulation structure for an appliance |
| US10350817B2 (en) | 2012-04-11 | 2019-07-16 | Whirlpool Corporation | Method to create vacuum insulated cabinets for refrigerators |
| US10365030B2 (en) | 2015-03-02 | 2019-07-30 | Whirlpool Corporation | 3D vacuum panel and a folding approach to create the 3D vacuum panel from a 2D vacuum panel of non-uniform thickness |
| US10422569B2 (en) | 2015-12-21 | 2019-09-24 | Whirlpool Corporation | Vacuum insulated door construction |
| US10422573B2 (en) | 2015-12-08 | 2019-09-24 | Whirlpool Corporation | Insulation structure for an appliance having a uniformly mixed multi-component insulation material, and a method for even distribution of material combinations therein |
| US10429125B2 (en) | 2015-12-08 | 2019-10-01 | Whirlpool Corporation | Insulation structure for an appliance having a uniformly mixed multi-component insulation material, and a method for even distribution of material combinations therein |
| US10610985B2 (en) | 2015-12-28 | 2020-04-07 | Whirlpool Corporation | Multilayer barrier materials with PVD or plasma coating for vacuum insulated structure |
| US10663217B2 (en) | 2012-04-02 | 2020-05-26 | Whirlpool Corporation | Vacuum insulated structure tubular cabinet construction |
| US10712080B2 (en) | 2016-04-15 | 2020-07-14 | Whirlpool Corporation | Vacuum insulated refrigerator cabinet |
| US10731915B2 (en) | 2015-03-11 | 2020-08-04 | Whirlpool Corporation | Self-contained pantry box system for insertion into an appliance |
| US10807298B2 (en) | 2015-12-29 | 2020-10-20 | Whirlpool Corporation | Molded gas barrier parts for vacuum insulated structure |
| US10808987B2 (en) | 2015-12-09 | 2020-10-20 | Whirlpool Corporation | Vacuum insulation structures with multiple insulators |
| US10907891B2 (en) | 2019-02-18 | 2021-02-02 | Whirlpool Corporation | Trim breaker for a structural cabinet that incorporates a structural glass contact surface |
| US10907888B2 (en) | 2018-06-25 | 2021-02-02 | Whirlpool Corporation | Hybrid pigmented hot stitched color liner system |
| US11009284B2 (en) | 2016-04-15 | 2021-05-18 | Whirlpool Corporation | Vacuum insulated refrigerator structure with three dimensional characteristics |
| US11052579B2 (en) | 2015-12-08 | 2021-07-06 | Whirlpool Corporation | Method for preparing a densified insulation material for use in appliance insulated structure |
| US11175090B2 (en) | 2016-12-05 | 2021-11-16 | Whirlpool Corporation | Pigmented monolayer liner for appliances and methods of making the same |
| US11247369B2 (en) | 2015-12-30 | 2022-02-15 | Whirlpool Corporation | Method of fabricating 3D vacuum insulated refrigerator structure having core material |
| US11320193B2 (en) | 2016-07-26 | 2022-05-03 | Whirlpool Corporation | Vacuum insulated structure trim breaker |
| US11391506B2 (en) | 2016-08-18 | 2022-07-19 | Whirlpool Corporation | Machine compartment for a vacuum insulated structure |
| US11994336B2 (en) | 2015-12-09 | 2024-05-28 | Whirlpool Corporation | Vacuum insulated structure with thermal bridge breaker with heat loop |
| US12070924B2 (en) | 2020-07-27 | 2024-08-27 | Whirlpool Corporation | Appliance liner having natural fibers |
| US12508751B2 (en) | 2015-12-08 | 2025-12-30 | Whirlpool Corporation | Insulation compaction device and method for forming an insulated structure for an appliance |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007011178A1 (en) * | 2005-07-20 | 2007-01-25 | Lg Electronics Inc. | Refrigerator door and method of manufacture thereof |
| KR101443913B1 (ko) * | 2007-12-12 | 2014-09-29 | 엘지전자 주식회사 | 냉장고의 디스펜서프레임 |
| KR102001145B1 (ko) * | 2012-06-12 | 2019-10-21 | 엘지전자 주식회사 | 냉장고용 도어, 도어의 제조방법, 금속 용기 및 그의 제조방법, 금속 판재의 가공방법, 금속 판재의 가공 장치 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2183280A (en) * | 1938-08-18 | 1939-12-12 | Crosley Corp | Refrigerator door |
| US2703442A (en) * | 1948-09-22 | 1955-03-08 | Nash Kelvinator Corp | Refrigerator door |
| US2807837A (en) * | 1955-07-14 | 1957-10-01 | Gen Motors Corp | Refrigerator cabinet door |
| US2839347A (en) * | 1956-02-21 | 1958-06-17 | Amana Refrigeration Inc | Breaker frame construction |
| GB1602440A (en) * | 1977-08-16 | 1981-11-11 | Kelvinator Ltd | Formed metal panels |
| JPS5885083A (ja) * | 1981-11-13 | 1983-05-21 | 株式会社東芝 | 冷蔵庫扉の製造方法 |
| US4528825A (en) * | 1984-08-20 | 1985-07-16 | Whirlpool Corporation | Fold-down multiple position shelf for refrigerator |
| US4649854A (en) * | 1985-12-31 | 1987-03-17 | Whirlpool Corporation | Over-temperature indicator device for freezers |
| US4732014A (en) * | 1986-12-31 | 1988-03-22 | Whirlpool Corporation | Temperature controlled compartment for a refrigerator |
| SE468227B (sv) * | 1990-03-14 | 1992-11-23 | Electrolux Ab | Doerr vikt av plaat |
| US5231847A (en) * | 1992-08-14 | 1993-08-03 | Whirlpool Corporation | Multi-temperature evaporator refrigerator system with variable speed compressor |
| US5322366A (en) * | 1993-02-04 | 1994-06-21 | Whirlpool Corporation | Interior door shelf support system for refrigerator |
| US5369901A (en) * | 1993-02-04 | 1994-12-06 | Whirlpool Corporation | Refrigerator door structure to reduce thermal bow |
| US5357769A (en) * | 1993-05-10 | 1994-10-25 | Whirlpool Corporation | Bottom mount refrigerator air return system |
| US5486045A (en) * | 1993-11-01 | 1996-01-23 | Whirlpool Corporation | Shelf ladder reinforcement member for a refrigeration appliance |
| US5568712A (en) * | 1995-03-21 | 1996-10-29 | General Electric Company | Refrigerator door construction |
| US5588731A (en) * | 1995-07-17 | 1996-12-31 | Whirlpool Corporation | Refrigerator door construction |
| IT1303634B1 (it) * | 1998-12-01 | 2001-02-21 | Whirlpool Co | Metodo per realizzare una porta di elettrodomestico, in particolareper refrigeratore, in materiale plastico con bordi ripiegati e porta |
-
2004
- 2004-08-05 US US10/912,684 patent/US20060028105A1/en not_active Abandoned
-
2005
- 2005-07-25 EP EP05106829A patent/EP1624263A2/de not_active Withdrawn
- 2005-07-28 AU AU2005203328A patent/AU2005203328A1/en not_active Abandoned
- 2005-08-01 MX MXPA05008226A patent/MXPA05008226A/es not_active Application Discontinuation
- 2005-08-04 BR BRPI0503271-7A patent/BRPI0503271A/pt not_active Application Discontinuation
- 2005-08-05 CN CNA2005100917007A patent/CN1731054A/zh active Pending
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| US10350817B2 (en) | 2012-04-11 | 2019-07-16 | Whirlpool Corporation | Method to create vacuum insulated cabinets for refrigerators |
| US10052819B2 (en) | 2014-02-24 | 2018-08-21 | Whirlpool Corporation | Vacuum packaged 3D vacuum insulated door structure and method therefor using a tooling fixture |
| US10105931B2 (en) | 2014-02-24 | 2018-10-23 | Whirlpool Corporation | Multi-section core vacuum insulation panels with hybrid barrier film envelope |
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| US10610985B2 (en) | 2015-12-28 | 2020-04-07 | Whirlpool Corporation | Multilayer barrier materials with PVD or plasma coating for vacuum insulated structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| MXPA05008226A (es) | 2006-02-09 |
| BRPI0503271A (pt) | 2006-03-21 |
| CN1731054A (zh) | 2006-02-08 |
| AU2005203328A1 (en) | 2006-02-23 |
| US20060028105A1 (en) | 2006-02-09 |
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