Over-the-range microwaves having one or more airflow features

Patent metadata

Field	Value
Publication number	US-11197353-B2
Application number	US-201916529173-A
Country	US
Kind code	B2
Filing date	Aug 1, 2019
Priority date	Aug 1, 2019
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

A microwave appliance, as provided herein, may include an outer casing, an inner liner, a door, and an air handler. The outer casing may define an air inlet above a cooktop appliance. The outer casing may extend in a lateral direction between a first side end and a second side end. The inner casing may define a cooking chamber. The door may include a peripheral frame and a front window bounded by the peripheral frame. The peripheral frame may define an air outlet downstream from the air inlet and below the front window along the vertical direction. The air handler may be mounted within the outer casing in fluid communication between the air inlet and the air outlet to motivate an airflow therethrough. The air outlet may define an airflow curtain path extending outward from the outer casing in front of the door.

First claim

What is claimed is:

1. A microwave appliance mountable over a cooktop appliance comprising a cooktop surface, the microwave appliance defining a vertical direction, a lateral direction, and a transverse direction, the microwave appliance comprising:
an outer casing defining an air inlet above the cooktop appliance, the outer casing extending in the lateral direction between a first side end and a second side end;
an inner liner held within the outer casing, the inner casing defining a cooking chamber;
a door movably mounted to the outer casing at the first side end or the second side end to move between an open position permitting access to the cooking chamber and a closed position restricting access to the cooking chamber, the door comprising a peripheral frame and a front window bounded by the peripheral frame, the peripheral frame defining an air outlet downstream from the air inlet and below the front window along the vertical direction; and
an air handler mounted within the outer casing in fluid communication between the air inlet and the air outlet to motivate an airflow therethrough,
wherein the air outlet defines an airflow curtain path extending outward from and outside of the outer casing relative to the transverse direction, the airflow curtain path further extending in front of the door relative to the transverse direction,
wherein the air outlet is a first air outlet,
wherein the peripheral frame further defines a second air outlet above the first air outlet, and
wherein the second air outlet defines a coolant airflow path along the front window outside of the door.

2. The microwave appliance of claim 1 , further comprising an image monitor supported on the door above the first air outlet and behind the front window.

3. The microwave appliance of claim 1 , wherein the air inlet is defined through the outer casing at a location rearward from the door.

4. The microwave appliance of claim 1 , wherein the second air outlet is defined above the front window.

5. The microwave appliance of claim 1 , wherein the second air outlet is defined between the peripheral frame and the front window.

6. The microwave appliance of claim 1 , wherein the outer casing extends in the vertical direction from a top end to a bottom end, and wherein the air inlet is defined through the outer casing proximal to the top end.

7. The microwave appliance of claim 6 , wherein the outer casing extends in the transverse direction from a front surface to a rear end, and wherein the outer casing defines a first intermediate aperture downstream from the air inlet at the front surface, wherein the door defines a second intermediate aperture upstream from the first air outlet, and wherein the first intermediate aperture is provided in mated alignment with the second intermediate aperture in the closed position to direct the airflow from the outer casing to the door.

8. The microwave appliance of claim 7 , wherein the air handler is positioned within an intake air passage extending between the air inlet and the first intermediate aperture, wherein the outer casing further defines an exhaust passage extending in fluid isolation from the intake air passage from an exhaust inlet proximal to the bottom end and an exhaust outlet proximal to the top end.

9. The microwave appliance of claim 1 , wherein the airflow curtain path extends at a positive angle relative to the transverse direction.

10. A microwave appliance mountable over a cooktop appliance comprising a cooktop surface, the microwave appliance defining a vertical direction, a lateral direction, and a transverse direction, the microwave appliance comprising:
an outer casing defining an air inlet above the cooktop appliance, the outer casing extending in the lateral direction between a first side end and a second side end;
an inner liner held within the outer casing, the inner casing defining a cooking chamber;
a door movably mounted to the outer casing in front of the inner liner to move between an open position permitting access to the cooking chamber and a closed position restricting access to the cooking chamber, the door comprising a peripheral frame and a front window bounded by the peripheral frame, the peripheral frame defining a first air outlet and a second air outlet, the first air outlet being defined downstream from the air inlet and below the front window along the vertical direction, the second air outlet being defined downstream from the air inlet and above the first air outlet along the vertical direction; and
an air handler mounted within the outer casing in fluid communication between the air inlet and the first air outlet to motivate an airflow therethrough,
wherein the first air outlet defines an airflow curtain path extending outward from and outside of the outer casing relative to the transverse direction, the airflow curtain path further extending in front of the front window relative to the transverse direction, and wherein the second air outlet defines a coolant airflow path extending from a position forward from the front window and therealong outside of the door.

11. The microwave appliance of claim 10 , further comprising an image monitor supported on the door above the first and second air outlets and behind the front window.

12. The microwave appliance of claim 10 , wherein the air inlet is defined through the outer casing at a location rearward from the door.

13. The microwave appliance of claim 10 , wherein the second air outlet is defined above the front window and forward therefrom.

14. The microwave appliance of claim 10 , wherein the second air outlet is defined between the peripheral frame and the front window.

15. The microwave appliance of claim 10 , wherein the outer casing extends in the vertical direction from a top end to a bottom end, and wherein the air inlet is defined through the outer casing proximal to the top end.

16. The microwave appliance of claim 15 , wherein the outer casing extends in the transverse direction from a front surface to a rear end, and wherein the outer casing defines a first intermediate aperture downstream from the air inlet at the front surface, wherein the door defines a second intermediate aperture upstream from the first air outlet, and wherein the first intermediate aperture is provided in mated alignment with the second intermediate aperture in the closed position to direct the airflow from the outer casing to the door.

17. The microwave appliance of claim 16 , wherein the air handler is positioned within an intake air passage extending between the air inlet and the first intermediate aperture, wherein the outer casing further defines an exhaust passage extending in fluid isolation from the intake air passage from an exhaust inlet proximal to the bottom end and an exhaust outlet proximal to the top end.

18. The microwave appliance of claim 10 , wherein the airflow curtain path extends at a positive angle relative to the transverse direction.

Assignees

• Haier Us Appliance Solutions Inc

Inventors

• Armstrong James Lee
• Froelicher Stephen Bernard
• Funk Michael A

Classifications

• H05B6/6414

  Aspects relating to the door of the microwave heating apparatus · CPC title

• H05B6/642 Primary

  Cooling of the microwave components and related air circulation systems (H05B6/6473 takes precedence) · CPC title

• H05B6/6423 Primary

  wherein the microwave oven air circulation system is also used as air extracting hood · CPC title