A MICROWAVE OVEN OR A MULTIFUNCTIONAL OVEN WITH MICROWAVE HEATING FUNCTION

• US 20150327336A1
• Filed: 10/23/2013
• Published: 11/12/2015
• Est. Priority Date: 01/25/2013
• Status: Active Grant

• Current Assignee: Electrolux Home Products Corporation NV (AB Electrolux)
• Original Assignee: Electrolux Home Products Corporation NV (AB Electrolux)
• Inventors: WITTMANN, Michael, SPECHT, Trevor, SCHUTZ, Tobias, HIMMELEIN, Benjamin
• Granted Patent: US 10,448,464 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F24C 15/08 Foundations or supports plates; Legs or pillars; Casings; Wheels tops, e.g. hot plates F24C15/10
• CPC Class Codes: H05B 6/6402 Aspects relating to the microwave cavity
• CPC Class Codes: H05B 6/6405 Self-cleaning cavity
• CPC Class Codes: H05B 6/6414 Aspects relating to the door of the microwave heating apparatus
• CPC Class Codes: H05B 6/6426 Aspects relating to the exterior of the microwave heating apparatus, e.g. metal casing, power cord
• CPC Class Codes: H05B 6/763 Microwave radiation seals for doors

Abstract

A microwave oven or multifunctional oven with microwave heating function. The oven includes a cavity with an open front side and a front frame enclosing at least partially a front portion of the cavity. The cavity and the front frame include metal sheet. The front frame is connected to the cavity by fixing elements. A gap is formed between the cavity and the front frame. The gap encloses at least partially the front portion of the cavity and the front frame encloses the gap. The oven includes a door covering the open front side and the gap in a closed state of the door. The gap is at least partially filled by a gasket at least part of which includes one or more materials having low heat conductivity, so that the front frame is thermally decoupled from the cavity by the part of the gasket or the gap.

Claims

1. A microwave oven or a multifunctional oven with microwave heating function, wherein

the oven comprises an oven cavity (10) with an open front side,

the oven comprises a front frame (20) enclosing at least partially a front portion of the oven cavity (10),

the oven cavity (10) and the front frame (20) are made of metal sheet,

the front frame (20) is connected to the oven cavity (10) by a number of fixing elements (24),

a gap (26) is formed between the oven cavity (10) and the front frame (20),

the gap (26) encloses at least partially the front portion of the oven cavity (10) and the front frame (20) encloses the gap (26) in turn,

the gap (26) is at least partially filled by a gasket (30),

the oven comprises an oven door (32) covering the open front side of the oven cavity (10) and the gap (30) in a closed state of said oven door (32), and

at least a part of the gasket (30) comprises one or more materials having low heat conductivity, so that the front frame (20) is thermally decoupled from the oven cavity (10) by said part of the gasket (30) and/or by the gap (26).

2. The oven according to claim 1,

characterized in that

the fixing elements are screws (24) and/or rivets.

3. The oven according to claim 1,

characterized in that

the front frame (20) comprises a number of lugs (22) aligning at the side wall (12), top wall (14) and/or bottom wall (16) of the oven cavity (10), in particular wherein said lugs (22) align with lugs arranged on at least one of side wall (12), top wall (14) and/or bottom wall (16), preferably wherein said lugs (22) align with lugs arranged on each one of side wall (12), top wall (14) and/or bottom wall (16).

4. The oven according to claim 2,

characterized in that

the screws (24) penetrate the lugs (22).

5. The oven according to claim 1,

characterized in that

at least a part of the gasket (30) comprises at least one elastic material.

6. The oven according to claim 1,

characterized in that

at least a part of the gasket (30) comprises at least one electrically conductive material.

7. The oven according to claim 1,

characterized in that

a front portion (36) and a rear portion (38) of the gasket (30) comprise different materials, wherein the front portion (36) comprises at least one electrically non-conductive material, while the rear portion (38) comprises at least one electrically conductive material.

8. The oven according to claim 1,

characterized in that

the gasket (30) comprises one or more silicone materials.

9. The oven according to claim 7,

characterized in that

the rear portion (38) of the gasket (30) comprises at least one silicone material containing small metallic particles mixed into said silicone materials.

10. The oven according to claim 7,

characterized in that

at least a part of the rear portion (38) of the gasket (30) fills the gap (26).

11. The oven according to claim 1,

characterized in that

the gasket (30) is formed as a single-piece part.

12. The oven according to claim 1,

characterized in that

the oven door (32) comprises a wave choke system (34) extending in an outer portion of said oven door (32), so that the wave choke system (34) is arranged in front of the gap (26), if the oven door (32) is in the closed state.

13. The oven according to claim 1,

characterized in that

the rear portion (38) of the gasket (20) has an L-shaped cross section, wherein said L-shaped rear portion (38) of the gasket (20) encloses at least partially a rim (40) at the front side of the oven cavity (10).

14. The oven according to claim 1,

characterized in that

the oven is a multifunctional oven with a microwave heating function and at least one further heating function.