Home cooking appliance having a cooling fan air guide

Patent metadata

Field	Value
Publication number	US-11428417-B2
Application number	US-201916454108-A
Country	US
Kind code	B2
Filing date	Jun 27, 2019
Priority date	Jun 27, 2019
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

A home cooking appliance includes a housing, a cooktop on the housing, the cooktop having at least one gas burner, a cooking compartment in the housing and accessible through a door in a front of the housing, a cooling air system having a cooling fan that conveys cooling air through the housing, and an air guide between the cooktop and the cooking compartment, the air guide including an inlet located away from a space below the at least one gas burner of the cooktop and an outlet in fluid communication with the cooling fan, the air guide configured to restrict air from being drawn into the cooling fan from the space below the at least one gas burner of the cooktop.

First claim

What is claimed is:

1. A home cooking appliance comprising:
a housing;
a cooktop on the housing, the cooktop having a cooktop floor supporting at least one gas burner and a cooktop chassis below the cooktop floor, the cooktop floor and the cooktop chassis defining a space therebetween and below the at least one gas burner, the cooktop chassis having one or more openings;
a cooking compartment in the housing and accessible through a door in a front of the housing;
a cooling air system having a cooling fan that conveys cooling air through the housing; and
an air guide between the cooktop chassis and the cooking compartment, the air guide including a top wall defining an inlet located away from the space below the at least one gas burner of the cooktop and an outlet in fluid communication with the cooling fan and defining a flow path between the inlet and the outlet, the top wall of the air guide being disposed below the cooktop chassis and configured to restrict air from being drawn from the space above the cooktop chassis and below the at least one gas burner of the cooktop through the one or more openings in the cooktop chassis and into the cooling fan by isolating the flow path from the one or more openings in the cooktop chassis.

2. The home cooking appliance of claim 1 , wherein the inlet is disposed closer to the front of the housing than a primary air intake of the at least one gas burner in the space below the at least one gas burner of the cooktop.

3. The home cooking appliance of claim 1 , wherein the cooktop includes a plurality of gas burners, and
wherein the inlet is disposed closer to the front of the housing than a primary air intake of each of the plurality of gas burners in the space below the plurality of gas burners of the cooktop.

4. The home cooking appliance of claim 1 , further comprising:
a top insulation retainer above the cooking compartment,
wherein the top wall of the air guide is disposed between the cooktop chassis and the top insulation retainer.

5. The home cooking appliance of claim 4 , wherein the top wall of the air guide cooperates with the top insulation retainer to form the flow path between the inlet and the outlet.

6. The home cooking appliance of claim 4 , wherein the air guide comprises at least three walls cooperating with the top insulation retainer to form the flow path between the inlet and the outlet.

7. The home cooking appliance of claim 6 , wherein the three walls include the top wall and two sidewalls extending from the top wall, and
wherein the two sidewalls contact the top insulation retainer to form a substantially sealed flow path between the inlet and the outlet.

8. The home cooking appliance of claim 7 , wherein the two sidewalls include one or more flanges in contact with the top insulation retainer.

9. The home cooking appliance of claim 8 , wherein the one or more flanges are coupled to the top insulation retainer.

10. The home cooking appliance of claim 7 , wherein the top wall of the air guide is spaced from an underside of the cooktop chassis by a predetermined clearance.

11. The home cooking appliance of claim 1 , wherein the top wall of the air guide is spaced from an underside of the cooktop chassis by a predetermined clearance.

12. The home cooking appliance of claim 1 , wherein the air guide includes a flange extending from the top wall and coupled to the cooling fan.

13. The home cooking appliance of claim 12 , wherein the cooling fan includes a lip configured to receive and secure the flange of the air guide to the cooling fan.

14. The home cooking appliance of claim 1 , wherein the air guide includes a guide portion extending from the top wall at a top of the outlet and configured to guide air exiting the outlet to an intake of the cooling fan.

15. The home cooking appliance of claim 14 , wherein the guide portion extending from the top wall at the top of the outlet includes a flange coupled to the cooling fan.

16. The home cooking appliance of claim 14 , wherein the guide portion extending from the top wall at the top of the outlet includes one or more angled plate portions.

17. The home cooking appliance of claim 14 , wherein the cooktop chassis further comprises:
a chassis floor and at least one chassis sidewall, the cooktop floor, the chassis floor, and the at least one chassis sidewall defining the space below the at least one gas burner of the cooktop, the chassis floor and the at least one chassis sidewall disposed between the cooktop floor and the cooking compartment,
wherein the top wall of the air guide is disposed between the chassis floor and the cooking compartment and the guide portion extending from the top wall at the top of the outlet is disposed between the at least one chassis sidewall and the cooling fan.

18. The home cooking appliance of claim 17 , wherein the guide portion extending from the top wall at the top of the outlet of the air guide is separated from the at least one chassis sidewall by a predetermined clearance.

19. A home cooking appliance comprising:
a housing;
a cooktop on the housing, the cooktop including:
a cooktop surface supporting at least one bottom-breathing gas burner, and
a cooktop chassis below the cooktop surface and the at least one bottom-breathing gas burner, the cooktop surface and the cooktop chassis defining a space therebetween and below the at least one bottom-breathing gas burner, the cooktop chassis having one or more penetrations,
wherein the at least one bottom-breathing gas burner has a primary air intake in the space between the cooktop surface and the cooktop chassis;

a cooking compartment in the housing and accessible through a door in a front of the housing;
a cooling air system having a cooling fan that conveys cooling air through the housing; and
an air guide below the cooktop chassis and above the cooking compartment, the air guide including a top wall defining an inlet located away from the space below the at least one bottom-breathing gas burner of the cooktop and an outlet in fluid communication with the cooling fan and defining a flow path between the inlet and the outlet, the top wall of the air guide configured to restrict air from being drawn from the space between the cooktop surface and the cooktop chassis having the primary air intake of the at least one bottom-breathing gas burner through the one or more penetrations in the cooktop chassis and into the cooling fan by isolating the flow path from the one or more penetrations in the cooktop chassis.

20. The home cooking appliance of claim 19 , wherein the top wall of the air guide is spaced from an underside of the cooktop chassis by a predetermined clearance.

Assignees

• Bsh Home Appliances Corp
• Bsh Hausgeraete Gmbh
• Bsh Home Appliance Corp

Inventors

• Diehl Ronald Allen
• Fronckowiak Josiah
• Mciver Ian
• Phillips Shaun

Classifications

• F24C3/082

  on stoves · CPC title

• F24C15/101

  provisions for circulation of air · CPC title

• F24C15/006 Primary

  Arrangements for circulation of cooling air · CPC title