EP2263466A2 - An oven door with a door frame and a door panel and a method for producing an oven door - Google Patents

An oven door with a door frame and a door panel and a method for producing an oven door Download PDF

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Publication number
EP2263466A2
EP2263466A2 EP10177456A EP10177456A EP2263466A2 EP 2263466 A2 EP2263466 A2 EP 2263466A2 EP 10177456 A EP10177456 A EP 10177456A EP 10177456 A EP10177456 A EP 10177456A EP 2263466 A2 EP2263466 A2 EP 2263466A2
Authority
EP
European Patent Office
Prior art keywords
door
door panel
door frame
oven
panel
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
EP10177456A
Other languages
German (de)
French (fr)
Other versions
EP2263466A3 (en
EP2263466B1 (en
Inventor
Göran Dalvander
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP10177456.0A priority Critical patent/EP2263466B1/en
Publication of EP2263466A2 publication Critical patent/EP2263466A2/en
Publication of EP2263466A3 publication Critical patent/EP2263466A3/en
Application granted granted Critical
Publication of EP2263466B1 publication Critical patent/EP2263466B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F24C15/04—Doors specially adapted for stoves or ranges with transparent panels
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/76—Prevention of microwave leakage, e.g. door sealings
    • H05B6/766—Microwave radiation screens for windows

Definitions

  • a typical oven door comprises one or more transparent door panels, which are made of glass or transparent plastics.
  • the door panel is integrated in a door frame.
  • the door frame consists of several frame parts and each frame part is provided for one circumferential side of the door panel.
  • the door panel grips the outer portion of the door panel on each circumferential side of said door panel.
  • the door frame is a closed frame around the door panel.
  • the hole or the holes, respectively, in the door panel are optional.
  • the door frame is formed of a polymer material, preferably a single polymer material.
  • the oven door is provided for a cooking oven, preferably for domestic use.
  • the door frame is produced around the door panel by a single step.
  • the door panel is fixed within the door frame by the same single step.
  • the door frame and the door panel form a compact unit.
  • FIG 3 illustrates a section view A-A of the oven door according to the preferred embodiment of the present invention.
  • the section view A-A relates to the corner of the door frame 10.
  • FIG. 3 shows how the inner portion 18 of the door frame 10 grips the door panel 12.
  • the outer portion 20 is formed as the profile part. Additionally, the outer portion 20 may comprise one or more hollow-profile parts.
  • the outer portion 20 of the door frame 10 includes two profile parts 24 on two opposite sides of said door frame 10.
  • the profile parts 24 are an integrated part of the vertical portions of the door frame 10.
  • the profile parts 24 are provided for supporting one or more further door panels.
  • the door panel 12 may comprise one or more additional layers. If the oven door is provided for a microwave oven, then the door panel 12 may comprise a layer formed as a shied grid in order to screen the electromagnetic waves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Special Wing (AREA)

Abstract

The invention relates to an oven door including at least one door frame (10) and at least one door panel (12). The door panel (12) is integrated within the door frame (10). The door frame (10) grips directly an outer portion of at least one door panel (12) on three circumferential sides of said door panel (12). The door frame (10) is formed as a one-piece injection moulded part made of a temperature-resistant material. The door panel (12) is made of a temperature-resistant material and at least partially of a transparent material. Further, the invention relates to a method for producing said oven door.

Description

  • The present invention relates to an oven door. Further, the present invention relates to a method for producing an oven door.
  • An oven requires a window in the oven door, so that the user is able to look inside the oven without opening the oven door. The oven door further should be made of temperature-resistant materials.
  • Known oven doors consist usually of several parts. A typical oven door comprises one or more transparent door panels, which are made of glass or transparent plastics. The door panel is integrated in a door frame. Usually the door frame consists of several frame parts and each frame part is provided for one circumferential side of the door panel.
  • The production of such an oven door is very complex and generates high costs. The frame parts have to be put together to the door frame. This requires several working steps. Additionally the door panel must be inserted into the door frame before or after putting together the door frame.
  • DE 10 2004 002 470 A1 discloses an oven door with a door frame. The door frame includes an injection moulded part enclosing all four circumferential sides of a door panel. In order to attach a further door panel, additional fixing elements are required. The oven door cannot be completely disassembled without destroying the door frame.
  • DE 102 02 144 A1 discloses an oven door with a door frame enclosing all four circumferential sides of a door panel. The door frame includes also an injection moulded part. Further door panels must be glued onto the outer side of the door frames.
  • It is an object of the present invention to provide an oven door and a method for producing the oven door, which allow a simple and cheap production.
  • This object is achieved by the oven door according to claim 1.
  • According to the present invention the oven door includes at least one door frame and at least one door panel, wherein
    • the door panel is integrated within the door frame,
    • the door frame grips directly an outer portion of at least one door panel on three circumferential sides of said door panel,
    • the door frame is formed as a one-piece injection moulded part made of a temperature-resistant material, and
    • the door panel is made of a temperature-resistant material and at least partially of a transparent material.
  • The core idea of the present invention is on the one hand, that the door frame is formed as the one-piece injection moulded part, and on the other hand, that the door frame grips directly the outer portion of the door panel on three circumferential sides. This allows a reduced production process by using the injection moulding. The door frame is produced around the door panel by a single step. The door panel is fixed within the door frame by the same single step. Thus, the door frame and the door panel form a compact unit. By the injection moulding it is not necessary to make any glue operation in order to fix together the door frame and the door panel.
  • In a preferred embodiment of the present invention the door panel comprises at least one hole in the outer portion of the door panel, wherein the hole is penetrated or filled by material of the injection moulded part. The hole or the holes, respectively, allow an additional fastening between the door frame and the door panel.
  • In particular, the hole is arranged in a corner of the door panel. This allows a big area for a window integrated within the oven door. Preferably the door panel is formed as a substantially rectangular sheet.
  • In the preferred embodiment of the present invention the door frame has a U-shaped form and grips the outer portion of the door panel on three circumferential sides of said door panel with said U-shaped form. This structure allows a simple production process, in particular for the step of injection moulding. Further, the door panel can be separated in an easy way the from the door frame by moving the door panel through the open side of the U-shaped door frame at a later time.
  • At each end portion of the U-shaped door frame at least one of the holes may be arranged in the door panel. The holes in this position increase the stability of the oven door.
  • In an alternative embodiment of the present invention the door panel grips the outer portion of the door panel on each circumferential side of said door panel. In this case the door frame is a closed frame around the door panel. In this embodiment the hole or the holes, respectively, in the door panel are optional.
  • In the preferred embodiment of the present invention the door panel is made of glass.
  • Alternatively, the door panel may be made of transparent plastics. In this case the oven door has a very low weight.
  • For example, the door frame is formed of a polymer material, preferably a single polymer material.
  • Further, the door frame may comprise at least one portion, which is formed as a profile part. The profile part allows a low weight and requires less material.
  • Preferably, the outer portion of the door frame is formed as one or more profile parts. This allows an arbitrary contour of the oven door.
  • In particular, the oven door is provided for a cooking oven, preferably for domestic use.
  • Further the door panel may comprise at least one shied grid in order to screen electromagnetic waves. Thus, the oven door also may be provided for a microwave oven.
  • In order to guarantee the screening the electromagnetic waves it may be provided, that the door panel covers the cross-section of the inner space of the microwave oven.
  • The object of the present invention is further achieved by the method according to the invention.
  • The inventive method for producing an oven door with at least one door frame and at least one door panel includes the following steps:
    • providing the door panel made of a temperature-resistant material and at least partially of a transparent material, and
    • injection moulding of the door frame along three circumferential sides of the door panel, so that the door frame gripes directly least a part of the outer portion of the door panel.
  • This method allows a reduced production process by using the injection moulding. The door frame is produced around the door panel by a single step. The door panel is fixed within the door frame by the same single step. Thus, the door frame and the door panel form a compact unit.
  • In particular, the method is provided for producing the oven door described above.
  • The novel and inventive features believed to be the characteristic of the present invention are set forth in the appended claims.
  • The invention will be described in further detail with reference to the drawing, in which
    • FIG 1
    illustrates a schematic front view of a door panel for an oven door according to a preferred embodiment of the present in- vention,
    FIG 2
    illustrates a schematic front view the an oven door according to the preferred embodiment of the present invention,
    FIG 3
    illustrates a section view A-A of the oven door according to the preferred embodiment of the present invention,
    FIG 4
    illustrates a section view B-B of the oven door according to the preferred embodiment of the present invention,
    FIG 5
    illustrates a perspective view of the oven door according to a further embodiment of the present invention, and
    FIG 6
    illustrates a perspective view of the oven door in FIG. 5 from the opposite side according to the further embodiment of the present invention.
  • FIG 1 illustrates a door panel 12 for the oven door according to a preferred embodiment of the present invention. The door panel 12 has a substantially rectangular form. In this example the door panel 12 is made of glass. Alternatively, the door panel 12 can be made of other temperature-resistant and transparent materials. For example, the door panel is made of transparent plastics.
  • The door panel 12 comprises two holes 14. The holes 14 are arranged in two neighbouring corners of the door panel 12. In this embodiment the holes 14 have a diameter of about 10 mm.
  • FIG 2 illustrates a front view of an oven door according to the preferred embodiment of the present invention. The oven door comprises the door panel 12 according to FIG. 1 and a door frame 10. The door frame 10 is formed as a one-piece injection moulded part. The material of the door frame 10 is temperature-resistant. For example, the door frame 10 is formed of a polymer material. Preferably, the door frame 10 is formed of a single polymer material.
  • The door frame comprises an inner portion 18 and an outer portion 20. The inner portion 18 grips the door panel 12. The outer portion 20 is formed as a profile part. The door frame 10 with the profile part allows a low weight and requires less material than a massive door frame.
  • The door frame 10 is U-shaped and borders three sides of the door panel 12. The holes 14 of the door panel 12 are partially filled with the material of the door frame 10. Within each of the holes 14 is a clearance hole 22 in the inner part 18 of the door frame 10.
  • FIG 3 illustrates a section view A-A of the oven door according to the preferred embodiment of the present invention. The section view A-A relates to the corner of the door frame 10. FIG. 3 shows how the inner portion 18 of the door frame 10 grips the door panel 12. The outer portion 20 is formed as the profile part. Additionally, the outer portion 20 may comprise one or more hollow-profile parts.
  • FIG 3 shows further, how the holes 14 of the door panel 12 are partially filled with the material of the door frame 10. The clearance hole 22 is arranged coaxially to the hole 14 of the door panel 12.
  • FIG 4 illustrates a section view B-B of the oven door according to the preferred embodiment of the present invention. The section view B-B represents the cross-section of the bigger part of the door frame 10. The inner portion 18 of the door frame 10 grips three circumferential sides of the door panel 12. The outer portion 20 is formed as the profile part.
  • The structure of the oven door according to the present invention allows a reduced production process by using the injection moulding. The door frame 10 is produced around the door panel 12 by a single step. The door panel 12 is fixed within the door frame by the same single step. The door frame 10 and the door panel 12 form a compact unit. It is not necessary to make any glue operation in order to fix together the door frame and the door panel.
  • The oven door according to the present invention may include further door panels 12. The further door panels 12 may be fixed either in the same way as described above or in another suitable way.
  • FIG 5 illustrates a perspective view of the oven door 10 according to a further embodiment of the present invention. The oven door 10 according to the further embodiment includes also the door frame 10 and the door panel 12. The door frame 10 encloses three circumferential sides of the door panel 12. In each of the lower corners of the door panel 12 is one hole 14, which is at least partially filled with the material of the door frame 10.
  • The outer portion 20 of the door frame 10 includes two profile parts 24 on two opposite sides of said door frame 10. In this example the profile parts 24 are an integrated part of the vertical portions of the door frame 10. The profile parts 24 are provided for supporting one or more further door panels.
  • FIG 6 illustrates a perspective view of the oven door 10 of FIG 5 from the opposite side according to the further embodiment of the present invention. FIG. 6 shows partially the profile parts 24 from the inner side.
  • For special applications the door panel 12 may comprise one or more additional layers. If the oven door is provided for a microwave oven, then the door panel 12 may comprise a layer formed as a shied grid in order to screen the electromagnetic waves.
  • Although illustrative embodiments of the present invention have been described herein with reference to the accompanying drawing, it is to be understood that the present invention is not limited to those precise embodiments, and that various other changes and modifications may be affected therein by one skilled in the art without departing from the scope or spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as defined by the appended claims.
    • List of reference numerals
    • 10
    door frame
    12
    door panel
    14
    hole
    18
    inner portion
    20
    outer portion
    22
    clearance hole
    24
    profile part

Claims (12)

  1. An oven door including at least one door frame (10) and at least one door panel (12), wherein
    - the door panel (12) is integrated within the door frame (10),
    - the door frame (10) grips directly an outer portion of at least one door panel (12) on three circumferential sides of said door panel (12),
    - the door frame (10) is formed as a one-piece injection moulded part made of a temperature-resistant material, and
    - the door panel (12) is made of a temperature-resistant material and at least partially of a transparent material.
  2. The oven door according to claim 1,
    characterized in, that
    the door panel (12) comprises at least one hole (14) in the outer portion of the door panel (12), wherein the hole (14) is penetrated or filled by material (16) of the injection moulded part, wherein preferably the hole (14) is arranged in a corner of the door panel (12), which in particular allows a big area for a window integrated within the oven door, wherein in particular the hole or the holes, respectively, allow an additional fastening between the door frame and the door panel,
  3. The oven door according to claim 1 or 2,
    characterized in, that
    the door panel (12) is formed as a substantially rectangular sheet.
  4. The oven door according to claim 3,
    characterized in, that
    the door frame (10) has an U-shaped form and grips the outer portion of the door panel (12) on three circumferential sides of said door panel (12) with said U-shaped form, wherein in particular the door panel can be separated in an easy way the from the door frame by moving the door panel through the open side of the U-shaped door frame at a later time and wherein preferably at each end portion of the U-shaped door frame (10) at least one of the holes (14) is arranged in the door panel (12).
  5. The oven door according to any one of the claims 1 to 3,
    characterized in, that the door panel (12) grips the outer portion of the door panel (12) on each circumferential side of said door panel (12), wherein in particular the door frame is a closed frame around the door panel.
  6. The oven door according to any one of the preceding claims,
    characterized in, that
    the door panel (12) is made of glass or transparent plastics and/or that the door frame (10) is formed of a polymer material, in particular a thermoplastic material and/or a single polymer material and/or
    characterized in, that
    the door frame (10) comprises at least one portion, which is formed as a profile part (18), wherein preferably the outer portion of the door frame (10) is formed as one or more profile parts (18), allowing in particular an arbitrary contour of the oven door..
  7. The oven door according to any one of the preceding claims,
    characterized in, that the oven door is provided for a cooking oven, preferably for domestic use.
  8. The oven door according to any one of the preceding claims,
    characterized in, that
    the door panel (12) comprises at least one shield grid in order to screen electromagnetic waves and/or that the oven door is provided for a microwave oven, wherein preferably the door panel (12) covers the cross-section of the inner space of the microwave oven.
  9. The oven door according to any one of the preceding claims, characterized by at least one of the following features:
    - the door frame is formed as the one-piece injection moulded part, and on the other hand, the door frame grips directly the outer portion of the door panel on three circumferential sides
    - the door frame is produced around the door panel by a single step
    - the door panel is fixed within the door frame by the same single step
    - the door frame and the door panel form a compact unit
    - the door panel (12) comprises two holes (14) which are arranged in two neighbouring corners of the door panel (12)
    - the holes (14) have a diameter of about 10 mm.
    - the door frame comprises an inner portion (18) which grips the door panel (12) and an outer portion (20) which is formed as a profile part.
    - the holes (14) of the door panel (12) are partially filled with the material of the door frame (10),
    - in each of the lower corners of the door panel (12) is one hole (14), which is at least partially filled with the material of the door frame (10)
    - within each of the holes (14) is a clearance hole (22) in the inner part (18) of the door frame (10), wherein preferably the clearance hole (22) is arranged coaxially to the hole (14) of the door panel (12)
    - the outer portion (20) comprises one or more hollow-profile parts.
    - the oven door includes further door panels 12, wherein the further door panels (12) are fixed in the same way or in another suitable way.
    - the outer portion (20) of the door frame (10) includes two profile parts (24) on two opposite sides of said door frame (10)
    - the profile parts (24) are an integrated part of the vertical portions of the door frame (10) and the profile parts (24) are provided for supporting one or more further door panels.
  10. A method for producing an oven door with at least one door frame (10) and at least one door panel (12), wherein said method includes the following steps:
    - providing the door panel (12) made of a temperature-resistant material and at least partially of a transparent material, and
    - injection moulding of the door frame (10) along three circumferential sides of the door panel (10), so that the door frame (10) grips directly at least partially or at least a part of the outer portion of the door panel (12).
  11. The method according to claim 10,
    characterized by at least one of the following features:
    - there is no glue operation in order to fix together the door frame and the door panel
    - the door frame is produced around the door panel by a single step,
    - the door panel is fixed within the door frame by the same single step.
  12. The method according to claim 10 or claim 11,
    characterized in, that
    the method is provided for producing an oven door according to any one of the claims 1 to 9.
EP10177456.0A 2007-07-02 2007-07-02 An oven door with a door frame and a door panel Not-in-force EP2263466B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10177456.0A EP2263466B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07012904A EP2011399B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel
EP10177456.0A EP2263466B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP07012904A Division EP2011399B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel
EP07012904.4 Division 2007-07-02

Publications (3)

Publication Number Publication Date
EP2263466A2 true EP2263466A2 (en) 2010-12-22
EP2263466A3 EP2263466A3 (en) 2015-08-26
EP2263466B1 EP2263466B1 (en) 2017-01-11

Family

ID=38740548

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10177456.0A Not-in-force EP2263466B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel
EP07012904A Not-in-force EP2011399B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07012904A Not-in-force EP2011399B1 (en) 2007-07-02 2007-07-02 An oven door with a door frame and a door panel

Country Status (4)

Country Link
EP (2) EP2263466B1 (en)
AT (1) ATE500732T1 (en)
DE (1) DE602007013024D1 (en)
WO (1) WO2009003591A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010029083A1 (en) * 2008-09-09 2010-03-18 Arcelik Anonim Sirketi An oven
DE102010063479A1 (en) * 2010-12-20 2012-06-21 BSH Bosch und Siemens Hausgeräte GmbH Method for producing a oven door
US12428902B2 (en) 2020-11-16 2025-09-30 Gemtron Corporation Encapsulated oven window pack

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202144A1 (en) 2002-01-21 2003-07-31 Bsh Bosch Siemens Hausgeraete Oven unit comprising multi-layer door structure, with middle pane held in place by circumferential U-profile whose sides are provided with connector sections
DE102004002470A1 (en) 2004-01-16 2005-08-11 BSH Bosch und Siemens Hausgeräte GmbH Door pane, e.g. of glass, for door on equipment with a hot chamber, is molded into a frame of fiber-reinforced, heat resistant thermoplastic

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Publication number Priority date Publication date Assignee Title
US5527500A (en) * 1994-06-02 1996-06-18 The Tensar Corporation Method of forming a framed panel utilizing tensioning by heat shrinking
US5789724A (en) * 1996-07-30 1998-08-04 Amana Company L.P. Oven door choke with contamination barrier
DE19734959C2 (en) * 1997-08-13 2001-06-13 Aeg Hausgeraete Gmbh Furnace muffle door with heat insulation body for the intermediate pane holder
US6210618B1 (en) 1997-12-01 2001-04-03 Gemtron Corporation Method of manufacturing a peripherally encapsulating unit
EP1106932B1 (en) * 1999-11-30 2004-04-28 AEG Hausgeräte GmbH Oven door with supporting elements made of plastic material
DE10243552A1 (en) * 2002-09-19 2004-04-01 BSH Bosch und Siemens Hausgeräte GmbH Frame structure for an oven door comprises on its rear side projections which form a groove running parallel to the frame plane and serving for holding an inner door pane
US20040253471A1 (en) * 2003-05-30 2004-12-16 Thiel James P. Appliance with coated transparency

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202144A1 (en) 2002-01-21 2003-07-31 Bsh Bosch Siemens Hausgeraete Oven unit comprising multi-layer door structure, with middle pane held in place by circumferential U-profile whose sides are provided with connector sections
DE102004002470A1 (en) 2004-01-16 2005-08-11 BSH Bosch und Siemens Hausgeräte GmbH Door pane, e.g. of glass, for door on equipment with a hot chamber, is molded into a frame of fiber-reinforced, heat resistant thermoplastic

Also Published As

Publication number Publication date
EP2263466A3 (en) 2015-08-26
EP2263466B1 (en) 2017-01-11
DE602007013024D1 (en) 2011-04-21
ATE500732T1 (en) 2011-03-15
WO2009003591A1 (en) 2009-01-08
EP2011399A1 (en) 2009-01-07
EP2011399B1 (en) 2011-03-09

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