Cooking appliance

Patent metadata

Field	Value
Publication number	US-10499464-B2
Application number	US-201715598481-A
Country	US
Kind code	B2
Filing date	May 18, 2017
Priority date	Feb 28, 2017
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

The present invention provides a cooking appliance, comprising a base and an oven door articulated with the base, wherein a first magnetron, a second magnetron, a first high voltage transformer and a second high voltage transformer are installed on the base; the cooking appliance further comprises an air-cooled radiator, which is installed on the base and provided with an air outlet; and cold air blown out of the air outlet flows through the first magnetron, the second magnetron, the first high voltage transformer and the second high voltage transformer. In this solution, the structure of a heat dissipation air duct system in the cooking appliance is changed, and only one air-cooled radiator is used for dissipating the heat of the two magnetrons and the two high voltage transformers, so that the quantity of heat dissipation fans in the product is reduced and the cost of the product can be reduced.

First claim

The invention claimed is:

1. A cooking appliance comprising:
a base;
an oven door configured to articulate relative to the base between a first position that is closer to the base and a second position that is further from the base,
wherein an upper surface of the base, a lower surface of the oven door or both are configured to, in the first position, define an accommodating cavity for accommodating food;

an upper heating tube installed in the oven door and a lower heating tube installed in the base, wherein the upper heating tube and the lower heating tube are configured to generate heat for heating the accommodating cavity;
a first magnetron, a second magnetron, a first high voltage transformer and a second high voltage transformer installed in the base and configured to deliver microwave to the accommodating cavity; and
an air-cooled radiator installed in the base,
wherein the air-cooled radiator defines a first air outlet and a second air outlet,
wherein the first magnetron is arranged close to the first high voltage transformer such that one part of air blown out of the first air outlet flows through the first magnetron, and another part of the air blown out of the first air outlet flows through the first high voltage transformer, and
wherein the second magnetron is arranged close to the second high voltage transformer such that one part of air blown out of the second air outlet flows through the second magnetron and another part of the air blown out of the second air outlet flows through the second high voltage transformer.

2. The cooking appliance of claim 1 ,
wherein the air-cooled radiator comprises a first fan blade, a second fan blade and a motor,
wherein a motor shaft of the motor is connected with the first fan blade and the second fan blade,
wherein the motor is configured to drive, through the motor shaft, the first fan blade and the second fan blade to rotate,
wherein the first fan blade is configured to blow air, through the first air outlet, to the first magnetron and the first high voltage transformer, and
wherein the second fan blade is configured to blow air, through the second air outlet, to the second magnetron and the second high voltage transformer.

3. The cooking appliance of claim 2 ,
wherein the air-cooled radiator further comprises a casing, and
wherein the first fan blade, the second fan blade and the motor are installed in the casing, and the casing defines an air inlet, the first air outlet and the second air outlet.

4. The cooking appliance of claim 2 ,
wherein the base comprises a front control panel, a bottom plate, a rear plate, a top plate, a left outer cover and a right outer cover,
wherein the front control panel, the bottom plate, the rear plate, the top plate, the left outer cover and the right outer cover define an enclosure, and
wherein the first magnetron, the second magnetron, the first high voltage transformer, the second high voltage transformer and the air-cooled radiator are installed in the enclosure.

5. The cooking appliance of claim 4 , further comprising a fixed support installed on the bottom plate,
wherein the first high voltage transformer and the second high voltage transformer are installed on the fixed support.

6. The cooking appliance of claim 4 ,
wherein the left outer cover defines a first air inlet,
wherein the right outer cover defines a second air inlet, and
wherein the rear plate defines an exhaust hole.

7. The cooking appliance of claim 4 ,
wherein the first magnetron and the second magnetron are arranged side by side on a left side and a right side of the enclosure.

8. The cooking appliance of claim 6 ,
wherein the air-cooled radiator is installed on one side of the first magnetron and the second magnetron away from the rear plate, and
wherein the cooking appliance further comprises:
a first exhaust tube arranged between the first magnetron and the exhaust hole; and
a second exhaust tube arranged between the second magnetron and the exhaust hole.

9. The cooking appliance of claim 4 ,
wherein the top plate defines a cavity having an opening upward, and
wherein the cooking appliance further comprises:
a first waveguide tube configured to connect the first magnetron with the cavity; and
a second waveguide tube configured to connect the second magnetron with the cavity.

10. The cooking appliance of claim 5 ,
wherein the top plate defines a cavity having an opening upward, and
wherein the cooking appliance further comprises:
a first waveguide tube configured to connect the first magnetron with the cavity;
a second waveguide tube configured to connect the second magnetron with the cavity.

11. The cooking appliance of claim 6 ,
wherein the top plate defines a cavity having an opening upward, and
wherein the cooking appliance further comprises:
a first waveguide tube configured to connect the first magnetron with the cavity; and
a second waveguide tube configured to connect the second magnetron with the cavity.

12. The cooking appliance of claim 7 ,
wherein the top plate defines a cavity having an opening upward, and
wherein the cooking appliance further comprises:
a first waveguide tube configured to connect the first magnetron with the cavity; and
a second waveguide tube configured to connect the second magnetron with the cavity.

13. The cooking appliance of claim 8 ,
wherein the top plate defines a cavity having an opening upward, and
wherein the cooking appliance further comprises:
a first waveguide tube configured to connect the first magnetron with the cavity; and
a second waveguide tube configured to connect the second magnetron with the cavity.

Assignees

• Guangdong Midea Kitchen Appliances Mfg Co Ltd
• Midea Group Co Ltd

Inventors

• Cho Jae Man
• Lee Dong Heon

Classifications

• H05B6/642 Primary

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

• H05B6/6402

  Aspects relating to the microwave cavity · CPC title

• A47J27/002

  Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels · CPC title

• H05B6/6482

  combined with radiant heating, e.g. infrared heating · CPC title

• H05B6/80 Primary

  Apparatus for specific applications (stoves or ranges F24C7/02) · CPC title