Microwave oven having side wave dispersing unit

#1. Field of the Invention

#The present invention relates to microwave ovens, and more particularly, to a microwave oven which evenly cooks food seated on a cooking tray in a cooking cavity of the microwave oven, even where the cooking tray is not rotated.

#2. Description of the Related Art

#These and other objects and advantages of the present invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

#FIG. 1 is a sectional view showing the construction of a conventional microwave oven having one wave dispersing unit at a top wall of a cooking cavity of the microwave oven;

#FIG. 2 is a sectional view showing the construction of a microwave oven having a wave dispersing unit at a top wall and a sidewall of a cooking cavity in accordance with an embodiment of the present invention;

#Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

#FIG. 2 shows a microwave oven having a wave dispersing unit at each of a top wall and a sidewall of its cooking cavity in accordance with an embodiment of the present invention. As shown in the drawing, the microwave oven comprises a cabinet 1 which forms the outer appearance of the oven, and a cooking cavity 2 and a machine room 3 which are defined in the cabinet 1 and partitioned from each other. A wave guide 9 extends from an upper portion of the machine room 3 to the top wall of the cooking cavity 2. A cooking tray 4 is set on a bottom of the cooking cavity 2 and seats food thereon. The cooking tray 4 is rotated by a tray motor 5 at a predetermined speed. A tray guide 6, having a plurality of rollers 7 along its edge, is set under the cooking tray 4 to rotatably support the cooking tray 4 on the bottom of the cooking cavity 2.

#A magnetron 8 generates microwaves, and is installed at an inlet of the wave guide 9 which is positioned at the upper portion of the machine room 3, while an opening 9a is formed at an outlet of the wave guide 9 which is positioned at the top wall of the cooking cavity 2. The wave guide 9 discharges the microwaves into the cooking cavity 2 through the opening 9a. An upper wave dispersing unit 20 is provided at a position adjacent to the opening 9a of the wave guide 9.