High-frequency heating device with range hood

Patent metadata

Field	Value
Publication number	US-9674901-B2
Application number	US-201214361570-A
Country	US
Kind code	B2
Filing date	Nov 30, 2012
Priority date	Dec 1, 2011
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A high-frequency heating device with a range hood is equipped with a heating chamber, a magnetron for supplying high-frequency power, a chamber illumination device disposed adjacent, from outside, to a wall of the heating chamber, and an LED illumination device which is disposed in a bottom portion of the main body and illuminates a heat-cooking device. The LED illumination device uses light-emitting diode elements, and illumination light emitted from the LED illumination device is concentrated by a reflection plate whose surface is plated.

First claim

The invention claimed is:

1. A high-frequency heating device with range hood which is installed over a heat-cooking device for cooking an object to be heated, comprising:
a heating chamber which is provided in a main body of the high-frequency heating device with range hood and which stores the object to be heated;
a high-frequency waves generation unit which supplies high-frequency power to an inside of the heating chamber;
a chamber illumination device disposed adjacent, from outside, to a wall of the heating chamber;
a lower illumination device which is disposed in a bottom portion of the main body of the high-frequency heating device with range hood and which illuminates the heat-cooking device; and
a control unit which controls the high-frequency waves generation unit, the chamber illumination device, and the lower illumination device,
wherein the lower illumination device is an LED illumination device using a light-emitting diode element mounted on a printed circuit board, and is supplied with power of a voltage lower than commercial power from a switching power supply which is controlled by the control unit, and
wherein the lower illumination device comprises a plated reflection plate for light concentration of increased illumination efficiency mounted on the printed circuit board, the plated reflection plate including positioning pins configured to be received in positioning holes formed in the printed circuit board so as to provide insulation spacing at uniform distances between the light-emitting diode element and the plated reflection plate.

2. The high-frequency heating device with range hood according to claim 1 ,
wherein the light-emitting diode element is mounted on an aluminum heat conduction plate having high heat conductivity to increase a heat dissipation effect, and
wherein the aluminum heat conduction plate is mechanically fixed to the plated reflection plate and an attachment plate which releases heat from the aluminum heat conduction plate to a bottom wall of the heating chamber.

3. A high-frequency heating device with range hood which is installed over a heat-cooking device for cooking an object to be heated, comprising:
a heating chamber which is provided in a main body of the high-frequency heating device with range hood and which stores the object to be heated;
a high-frequency waves generation unit which supplies high-frequency power to an inside of the heating chamber;
a chamber illumination device disposed adjacent, from outside, to a side wall of the heating chamber;
a lower illumination device which is disposed in a bottom portion of the main body of the high-frequency heating device with range hood and which illuminates the heat-cooking device; and
a control unit which controls the high-frequency waves generation unit, the chamber illumination device, and the lower illumination device,
wherein the lower illumination device is an LED illumination device using a light-emitting diode, and is supplied with power from a switching power supply which is controlled by the control unit.

4. The high-frequency heating device with range hood according to claim 3 ,
wherein the chamber illumination device is an LED illumination device using a light-emitting diode, and is supplied with power from the switching power supply which is controlled by the control unit.

5. A high-frequency heating device with range hood which is installed over a heat-cooking device for cooking an object to be heated, comprising:
a heating chamber which is provided in a main body of the high-frequency heating device with range hood and which stores the object to be heated;
a high-frequency waves generation unit which supplies high-frequency power to an inside of the heating chamber;
a chamber illumination device disposed adjacent, from outside, to a wall of the heating chamber;
a lower illumination device which is disposed in a bottom portion of the main body of the high-frequency heating device with range hood and which illuminates an object to be cooked in the heat-cooking device or a kitchen; and
a control unit which controls the high-frequency waves generation unit, the chamber illumination device, and the lower illumination device,
wherein the lower illumination device is an LED illumination device using a light-emitting diode element mounted on a printed circuit board, and is supplied with power from a switching power supply which is controlled by the control unit, and
wherein the lower illumination device comprises a plated reflection plate for light concentration of increased illumination efficiency mounted on the printed circuit board, the plated reflection plate including positioning pins configured to be received in positioning holes formed in the printed circuit board so as to provide insulation spacing at uniform distances between the light-emitting diode element and the plated reflection plate.

6. The high-frequency heating device with range hood according to claim 5 ,
wherein the reflection plate is formed by a resin mold comprising a plated surface to enhance the illumination efficiency and is configured to concentrate light emitted from the light-emitting diode element mounted on the printed circuit board to increase illuminance.

Assignees

• Panasonic Corp
• Panasonic Ip Man Co Ltd

Inventors

• Yamauchi Masato

Classifications

• H05B6/6402 Primary

  Aspects relating to the microwave cavity · CPC title

• F24C15/2064

  illumination for cooking hood · CPC title

• F24C15/2042 Primary

  Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft (F24C15/2007 takes precedence) · CPC title

• H05B6/6423

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

• F24C15/20

  Removing cooking fumes (parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapours from such vessels A47J36/38) · CPC title