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Tray driving apparatus for a microwave oven and a microwave oven having the same

a technology of driving apparatus and microwave oven, which is applied in the field of microwave ovens, can solve the problems of degrading cooking quality and deteriorating cooking quality, and achieve the effect of enhancing the cooking quality of food and more evenly radiating the microwave to the microwav

Inactive Publication Date: 2007-06-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a tray driving apparatus for a microwave oven that improves cooking quality by periodically changing the rotational speed of the tray and evenly radiating a microwave to the food. The apparatus includes a driving source, a driving shaft, a driven shaft, speed changing means, and a driving gear unit and driven gear unit with gears that alternately mesh with each other to change the rotational speed of the tray. This results in a more even cooking of the food and better quality.

Problems solved by technology

According to this, since the microwave ismicrowaves are not evenly radiated to the entire food, the respective portions of food are differently cooked, thus the cooking quality is degraded.
Accordingly, the cooking quality is deteriorated.

Method used

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  • Tray driving apparatus for a microwave oven and a microwave oven having the same
  • Tray driving apparatus for a microwave oven and a microwave oven having the same
  • Tray driving apparatus for a microwave oven and a microwave oven having the same

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Effect test

first embodiment

[0025]Hereinafter, the present invention according to the present invention will be described in detail with reference to the accompanying drawings.

[0026]The microwave oven to which the tray driving apparatus according to the first embodiment of the present invention is applied has the same structure as in a general microwave oven as shown in FIG. 1. That is, the body is divided into a cooking chamber and a driving chamber. Various electric components in the driving chamber are mounted for generating and guiding the microwave into the cooking chamber. A tray for placing food is mounted on the bottom of the cooking chamber, a door is mounted on the front side of the cooking chamber, and a control panel is mounted on the front side of the driving chamber.

[0027]The tray driving apparatus according to the first embodiment of the present invention is mounted below the tray of the cooking chamber. FIGS. 3 to 4B show the tray driving apparatus according to the first embodiment of the prese...

second embodiment

[0041]In the meantime, FIG. 5 is a cross-sectioned view for showing a tray driving apparatus according to the present invention.

[0042]The tray driving apparatus according to the second embodiment of the present invention includes a driving source 132 for providing a driving force, a driving shaft 134 and a driven shaft 136 for transmitting a driving force of thefrom driving source 132 to the tray 102′, and a speed changing gear unit for changing the rotational speed of the tray 102′ disposed between the driving shaft 134 and the driven shaft 136. The speed changing gear unit includes a driving gear unit 141 which has a first driving gear 142 and a second driving gear 144, and a driven gear unit 145 which has a first driven gear 146 and a second driven gear 148.

[0043]In the second embodiment of the present invention as stated above, as in the first embodiment, the rotational force of the driving shaft 134 is alternately transmitted through the first gears 142 and 146 and the second ...

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Abstract

A tray driving apparatus for a microwave oven and a microwave oven having the same including a speed changing unit for enhancing the cooking quality by periodically changing the rotational speed of the tray to more evenly radiate a microwave to food. The speed changing means includes a driving gear unit having a plurality of driving gears and mounted to the driving shaft; and a driven gear unit having a plurality of driven gears corresponding to respective driving gears of the driving gear unit, and mounted to the driven shaft. The gears of any one of the driving gear unit and the driven gear unit are portion gears which are gears having gear teeth on respective portions of outer peripheries thereof, the gear teeth of the portion gears are alternately disposed to each other one on another. Accordingly, upon a rotation of the driving shaft, each portion gear of any one of the driving gear unit and the driven gear unit are alternately meshed with a corresponding gear of the other one of the driving gear unit and the driven gear unit, to thereby change the rotational speed of the tray.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a microwave oven for cooking food placed on a rotating tray by using a microwave, and more particularly, to a tray driving apparatus for a microwave oven and a microwave oven having the same for enhancing the cooking quality by periodically changing the rotational speed of the tray to much more evenly radiate a microwavemicrowaves to the food.[0003]2. Description of the Prior Art[0004]A microwave oven is a device for cooking food by using a microwavemicrowaves generated from a magnetron. The principle is that the microwave cooksmicrowaves cook food from its interior by heating molecules of water included in the food. The microwave oven is more widely used since the microwave oven has clear advantages in a higher thermal efficiency, more rapid heating, and less loss of nutrients.[0005]Such a microwave oven, as shown in FIG. 1, has a cooking chamber 12 and a driving chamber 14 in the body ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H05B6/78H05B6/64A47J43/042F24C7/02H05B6/80
CPCH05B6/6411F24C7/02
Inventor CHOI, WON-WOO
Owner SAMSUNG ELECTRONICS CO LTD