WO2022112830A1 - Household oven comprising arrangement of lower heating element - Google Patents
Household oven comprising arrangement of lower heating element Download PDFInfo
- Publication number
- WO2022112830A1 WO2022112830A1 PCT/IB2020/061202 IB2020061202W WO2022112830A1 WO 2022112830 A1 WO2022112830 A1 WO 2022112830A1 IB 2020061202 W IB2020061202 W IB 2020061202W WO 2022112830 A1 WO2022112830 A1 WO 2022112830A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating element
- lower heating
- shield
- wall
- household oven
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 51
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000004534 enameling Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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
- F24C15/36—Protective guards, e.g. for preventing access to heated parts
-
- 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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
- F24C7/067—Arrangement or mounting of electric heating elements on ranges
Definitions
- the present invention refers to a household appliance, in particular to a household oven a surface thereof being protected by enamel, comprising a body with a door opening, an upper heating element arranged in the area of a top wall and inside said body, and a lower heating element arranged in the area of the bottom wall and outside said body.
- Known household ovens comprise a lower heating element which is screwed to the oven body on at least one side, either to a separate intended carrier or to a carrier that is an integral part of the oven.
- the clamping and position of said lower heating element are important factors as they affect the final result of the heat treatment of the food in the oven.
- the distance of the lower heating element to the bottom wall of the oven body is also important, as the contact of the lower heating element with the bottom wall of the oven body can cause the bottom wall to overheat and consequently crack the enamel at the point of contact.
- the lower heating element must not be placed directly on the insulation, as overheating of the lower heating element can lead to its failure.
- the object of the present invention is to create a household oven with a new arrangement of the lower heating element.
- Fig. 1 shows a household oven according to the invention in a three-dimensional view from below
- Fig. 2 a lower heating element and shield unit
- Fig. 3 detail A of Fig. 1.
- the household oven according to the invention comprises a body consisting of a top wall 1, a bottom wall 2, side walls 3, 4, a back wall 5, and a front wall 6 defining an oven space 7 that can be closed by the doors (not shown) intended to be in said front wall 6.
- a top wall 1 In the area of said top wall 1, an upper heating element (not shown) is arranged inside said oven space 7, while a lower heating element 8 is arranged in the area of said bottom wall 2 and outside said oven space 7.
- the latter is protected from direct contact with the thermal insulation (not shown) of the household oven by a flat shield 9 of the lower heating element 8 (shown in Fig. 1 by a dashed line).
- a carrier 10 preferably welded to said bottom wall 2, is attached in the area of the back wall 5 and on the side facing said shield 9 of the lower heating element 8.
- Said carrier 10, which extends approximately parallel to said bottom wall 2, is also intended for temporarily fastening said household oven body during its transport in the enamelling process.
- Said lower heating element 8 is equipped with at least two wire mounts 11’, 11”, which extend on the plane of said shield 9 and in the direction from said back wall 5 towards said front wall 6 and are detachably connected to said shield 9 by means of a series of through holes 12 formed in said shield 9.
- Said mounts 11’, 11” are further connected, for example welded, to said lower heating element 8 by means of a set of fasteners 13.
- a flange 14 is provided, which keeps the free ends of the lower heating element 8 at a constant distance from each other.
- Said flange 14 is designed for a form-locking and/or force-locking joint with said carrier 10, for example by means of a tongue-and-groove joint. Furthermore, said flange 14 is optionally protected against the release of said form-locking and/or force-locking joint.
- the above protection is selected as a protection without removable connecting elements, for example by means of a snap joint, a subsequent deformation of a part of the carrier 10, and/or the flange 14 or the like.
- Said lower heating element 8, which is permanently connected to said wire mounts 11’, 11”, said flange 14, which is permanently connected to the lower heating element 8, and said shield 9 of the lower heating element 8, which is detachably connected to said wire mounts 11’, 11”, represent a uniform unit 15 that can be attached to said bottom wall 2 of the household oven.
- Said lower heating element 8 is detachably connected to said carrier 10 by means of said flange 14 extending approximately perpendicularly to said carrier 10.
- Said detachable joint is provided as a form-locking and/or force-locking joint.
- Said flange 14 is intended as the first support point for holding the lower heating element 8 or said unit 15 in position, whereby said flange 14 is designed with a through hole or through holes for the passage of the lower heating element 8.
- the second support point for holding the lower heating element 8 or said unit 15 in position are the free ends of said wire mounts 11’, 11” that face the front wall 6 of the household oven. Said free ends of the wire mounts 11’, 11” on the one hand lean against the approximately horizontal bend 6’ of the front wall 6 that extends towards the back wall 5 and are on the other hand received in the corresponding notch 16 formed in the bend 2’ of the bottom wall 2 extending parallel to said bend 6’ of the front wall and at a distance from the latter.
- said wire mounts 11’, 11” are in their longitudinal direction in each case designed with at least one wavelike section 17 facing said bottom wall 2 and/or said shield 9. According to the invention at hand, it is envisaged that said wavelike section 17 leans either against said bottom wall 2 and/or against said shield 9, thus ensuring a constant distance of the shield 9 to the lower heating element 8 or of the heating element 8 to the bottom wall 2 of the oven.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The present invention relates to a household appliance, in particular to a household oven the surface thereof is protected by enamel, comprising a body with a door opening, an upper heating element arranged in the area of the top wall and inside said body, and a lower heating element arranged in the area of the bottom wall and outside said body. The shield (9) of the lower heating element (8) is equipped with at least two wire mounts (11', 11'') extending on the plane of the shield (9) and in the direction from said back wall (5) towards the front wall (6), which are detachably connected to said lower heating element (8) by means of a series of fasteners (13), whereby a holding plate (14) is provided on the side facing said back wall (5) and at a distance from said shield (9), which holds the free ends of the lower heating element (8) at a constant distance from each other, while at the same time being held by means of said carrier (10) in the assembled state of the household oven.
Description
HOUSEHOLD OVEN COMPRISING ARRANGEMENT OF LOWER HEATING ELEMENT
[0001] The present invention refers to a household appliance, in particular to a household oven a surface thereof being protected by enamel, comprising a body with a door opening, an upper heating element arranged in the area of a top wall and inside said body, and a lower heating element arranged in the area of the bottom wall and outside said body.
[0002] Known household ovens comprise a lower heating element which is screwed to the oven body on at least one side, either to a separate intended carrier or to a carrier that is an integral part of the oven.
[0003] Furthermore, there are also solutions comprising an intended sheet metal that is an integral part of the oven, for example welded to the body, or an intended separate element, both provided for positioning and fixing the lower heating element. Similar solutions relate to the shield of the lower heating element, which is either laid on the insulation of the household oven as a separate part, welded to said body of the household oven, or fastened to said oven.
[0004] The clamping and position of said lower heating element are important factors as they affect the final result of the heat treatment of the food in the oven. In addition, the distance of the lower heating element to the bottom wall of the oven body is also important, as the contact of the lower heating element with the bottom wall of the oven body can cause the bottom wall to overheat and consequently crack the enamel at the point of contact. On the other hand, the lower heating element must not be placed directly on the insulation, as overheating of the lower heating element can lead to its failure.
[0005] The object of the present invention is to create a household oven with a new arrangement of the lower heating element.
[0006] The object of the present invention is achieved by the features set forth in the characteristics part of claim 1. Details of the invention are disclosed in the
corresponding subclaims.
[0007] Below, the invention is presented in more detail on the basis of a non-limiting embodiment and with reference to the accompanying drawings, where
Fig. 1 shows a household oven according to the invention in a three-dimensional view from below,
Fig. 2 a lower heating element and shield unit,
Fig. 3 detail A of Fig. 1.
[0008] The household oven according to the invention comprises a body consisting of a top wall 1, a bottom wall 2, side walls 3, 4, a back wall 5, and a front wall 6 defining an oven space 7 that can be closed by the doors (not shown) intended to be in said front wall 6. In the area of said top wall 1, an upper heating element (not shown) is arranged inside said oven space 7, while a lower heating element 8 is arranged in the area of said bottom wall 2 and outside said oven space 7. The latter is protected from direct contact with the thermal insulation (not shown) of the household oven by a flat shield 9 of the lower heating element 8 (shown in Fig. 1 by a dashed line).
[0009] Furthermore, on said bottom wall 2 of the household oven according to the invention, a carrier 10, preferably welded to said bottom wall 2, is attached in the area of the back wall 5 and on the side facing said shield 9 of the lower heating element 8. Said carrier 10, which extends approximately parallel to said bottom wall 2, is also intended for temporarily fastening said household oven body during its transport in the enamelling process.
[0010] Said lower heating element 8 is equipped with at least two wire mounts 11’, 11”, which extend on the plane of said shield 9 and in the direction from said back wall 5 towards said front wall 6 and are detachably connected to said shield 9 by means of a series of through holes 12 formed in said shield 9. Said mounts 11’, 11” are further connected, for example welded, to said lower heating element 8 by means of a set of fasteners 13. On the side of the lower heating element 8 facing said back wall 5 and at the longitudinal spacing from said shield 9, a flange 14 is provided, which keeps the
free ends of the lower heating element 8 at a constant distance from each other. Said flange 14 is designed for a form-locking and/or force-locking joint with said carrier 10, for example by means of a tongue-and-groove joint. Furthermore, said flange 14 is optionally protected against the release of said form-locking and/or force-locking joint. The above protection is selected as a protection without removable connecting elements, for example by means of a snap joint, a subsequent deformation of a part of the carrier 10, and/or the flange 14 or the like.
[0011] Said lower heating element 8, which is permanently connected to said wire mounts 11’, 11”, said flange 14, which is permanently connected to the lower heating element 8, and said shield 9 of the lower heating element 8, which is detachably connected to said wire mounts 11’, 11”, represent a uniform unit 15 that can be attached to said bottom wall 2 of the household oven.
[0012] Said lower heating element 8 is detachably connected to said carrier 10 by means of said flange 14 extending approximately perpendicularly to said carrier 10. Said detachable joint is provided as a form-locking and/or force-locking joint. Said flange 14 is intended as the first support point for holding the lower heating element 8 or said unit 15 in position, whereby said flange 14 is designed with a through hole or through holes for the passage of the lower heating element 8.
[0013] The second support point for holding the lower heating element 8 or said unit 15 in position are the free ends of said wire mounts 11’, 11” that face the front wall 6 of the household oven. Said free ends of the wire mounts 11’, 11” on the one hand lean against the approximately horizontal bend 6’ of the front wall 6 that extends towards the back wall 5 and are on the other hand received in the corresponding notch 16 formed in the bend 2’ of the bottom wall 2 extending parallel to said bend 6’ of the front wall and at a distance from the latter.
[0014] In addition, said wire mounts 11’, 11” are in their longitudinal direction in each case designed with at least one wavelike section 17 facing said bottom wall 2 and/or said shield 9. According to the invention at hand, it is envisaged that said wavelike section 17 leans either against said bottom wall 2 and/or against said shield 9, thus ensuring a constant distance of the shield 9 to the lower heating element 8 or of
the heating element 8 to the bottom wall 2 of the oven.
Claims
1. A household oven a surface thereof being protected by enamel comprising a body with a door opening, an upper heating element arranged in the area of the top wall and inside said body, and a lower heating element arranged in the area of the bottom wall and outside said body, with the lower heating element being protected against direct contact with the thermal insulation of the household oven by a flat shield and a carrier being attached (preferably welded) to said bottom wall in the area of the back wall and on the side facing the shield of the lower heating element, whereby said carrier extends approximately parallel to said bottom wall and is intended for the temporary attachment of said household oven body during its transport in the enameling process, characterised in that said lower heating element (8) is equipped with at least two wire mounts (11’, 11”), which extend on the plane of a shield (9) of the lower heating element (8) and in the direction from a back wall (5) to a front wall (6) and are inseparably connected to said lower heating element (8) by means of a series of fasteners (13), whereby on the side facing said back wall (5) and spaced from said shield (9), a flange (14) is provided which holds the free ends of the lower heating element (8) at a constant distance from each other and extends approximately perpendicularly to said carrier (10), while the free ends of said wire mounts (11’, 11”) facing said front wall (6) on the one hand lean against the approximately horizontal bend (6’) of the front wall (6) that extends towards the back wall (5) and are on the other hand received in the corresponding notch (16) formed in the bend (2’) of the bottom wall (2), whereby said bend (2’) extends parallel to said bend (6’) of the front wall and at a distance from the latter.
2. A household oven according to claim 1, characterised in that the lower heating element (8), which is permanently connected to the wire mounts (11’, 11”), said flange (14), which is permanently connected to the lower heating element (8), and said shield (9) of the lower heating element (8), which is detachably connected to said wire mounts (11’, 11”), represent a uniform unit (15) that can be attached to said bottom wall (2) of the household oven.
3. A household oven according to claim 1, characterised in that said flange (14) is
detachably connected to said carrier (10).
4. A household oven according to claim 3, characterised in that said detachable joint is provided as a form-locking and/or force-locking joint.
5. A household oven according to claim 1, characterised in that the lower heating element 8 or said unit 15 is held in position by means of free ends of said wire mounts (11’, 11”) facing the front wall 6 of the household oven that on the one hand lean against the approximately horizontal bend (6’) of the front wall (6) that extends towards the back wall (5) and are on the other hand received in the corresponding notch (16) formed in the bend (2’) of the bottom wall (2), with the bend (2’) extending parallel to said bend (6’) of the front wall and at a distance from the latter.
6. A household oven according to claim 1, characterised in that said wire mounts (11’, 11”) are in their longitudinal direction in each case designed with at least one wavelike section (17) facing said bottom wall (2) and/or said shield (9).
7. A household oven according to claim 4, characterised in that said wavelike section (17) leans either against said bottom wall (2) and/or against said shield (9), thus ensuring a constant distance of the shield (9) to the lower heating element (8) or of the heating element (8) to the bottom wall (2) of the oven.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20835870.5A EP4251926B1 (en) | 2020-11-27 | 2020-11-27 | Household oven comprising arrangement of lower heating element |
| CN202080107579.5A CN116897262A (en) | 2020-11-27 | 2020-11-27 | Household oven comprising an arrangement of lower heating elements |
| PCT/IB2020/061202 WO2022112830A1 (en) | 2020-11-27 | 2020-11-27 | Household oven comprising arrangement of lower heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2020/061202 WO2022112830A1 (en) | 2020-11-27 | 2020-11-27 | Household oven comprising arrangement of lower heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022112830A1 true WO2022112830A1 (en) | 2022-06-02 |
Family
ID=74125566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2020/061202 WO2022112830A1 (en) | 2020-11-27 | 2020-11-27 | Household oven comprising arrangement of lower heating element |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4251926B1 (en) |
| CN (1) | CN116897262A (en) |
| WO (1) | WO2022112830A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008478A (en) * | 1996-12-05 | 1999-12-28 | Whirlpool Corporation | Heating element support system for oven |
| CN100470135C (en) * | 2004-11-18 | 2009-03-18 | 乐金电子(天津)电器有限公司 | Combined set of heater for microwave oven |
| EP2746671A1 (en) * | 2012-12-20 | 2014-06-25 | Indesit Company S.p.A. | Cooking oven comprising a heating element fastened with fastening means |
| WO2020078698A1 (en) * | 2018-10-15 | 2020-04-23 | Arcelik Anonim Sirketi | An oven comprising a heater support element |
-
2020
- 2020-11-27 CN CN202080107579.5A patent/CN116897262A/en active Pending
- 2020-11-27 WO PCT/IB2020/061202 patent/WO2022112830A1/en active Application Filing
- 2020-11-27 EP EP20835870.5A patent/EP4251926B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008478A (en) * | 1996-12-05 | 1999-12-28 | Whirlpool Corporation | Heating element support system for oven |
| CN100470135C (en) * | 2004-11-18 | 2009-03-18 | 乐金电子(天津)电器有限公司 | Combined set of heater for microwave oven |
| EP2746671A1 (en) * | 2012-12-20 | 2014-06-25 | Indesit Company S.p.A. | Cooking oven comprising a heating element fastened with fastening means |
| WO2020078698A1 (en) * | 2018-10-15 | 2020-04-23 | Arcelik Anonim Sirketi | An oven comprising a heater support element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116897262A (en) | 2023-10-17 |
| EP4251926B1 (en) | 2024-07-17 |
| EP4251926A1 (en) | 2023-10-04 |
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