JPS604560B2 - Microwave oven with built-in hot plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microwave oven with a built-in hot plate.

Generally, microwave ovens are equipped with a magnetron that efficiently radiates microwaves, and these microwave ovens heat food and drink using the microwaves radiated into the oven, and have become increasingly popular in recent years.

Conventionally, when food and drink in the oven are heated using the microwave oven, the food and drink are heated well, but the food and drink containers, such as ceramic containers, are not heated, and therefore the heat of the heated food and drink is not heated. It has the disadvantage that it conducts electricity into the container, causing the food and drink to cool down quickly.

In order to eliminate such drawbacks, it may be possible to incorporate a heater into the microwave oven to heat the container, but
This increases power consumption and also increases the cost of the microwave oven itself.

Therefore, an object of the present invention is to provide a microwave oven that can heat the container and prevent food and drinks from getting cold easily, consumes less power, and is low in cost.

In order to achieve such an object, the present invention uses a heat pipe to conduct the heat of the magnetron to a plate on which a container for storing food and drinks is arranged, and will be explained in detail below using examples. .

FIGS. 1 and 2 are an external view and a partially cutaway external view showing an embodiment of the magnetron according to the present invention.

In the figure, 1 is a microwave oven main body, and has an oven 2 inside. Reference numeral 3 denotes a magnetron placed at the bottom of the main body 1, which includes at least an anode cylinder 3a having a vane, a cathode, etc. inside, a magnet 3b, and a yoke 3c, and emits microwaves when operated. It works to radiate into the oven.

4 is a well-known heat pipe consisting of a sealed container lined with a wick and filled with a working fluid that easily evaporates; one end is wound around the anode cylinder 3a of the magnetron 3;
The end of the tube is connected to the bottom of a hot plate 5 disposed near the bottom of the oven 2 .

6 is a container for storing food and drink 6a, and is placed on 5 of the hot plate 5.

A power supply section 7 drives the magnetron 3, and is composed of a transformer, a rectifying element, etc., and supplies voltage and current to the anode cylinder 3a and the cathode of the magnetron 3.

8 is a switch, and 9 is an adjustment dial.

In such a configuration, when the magnetron 3 is driven, microwaves are radiated into the oven 2 and the food 6 is heated.
A can be heated.

At this time, since the anode cylinder 3a and the power supply part 7 of the magnetron 3 generate heat, this heat is conducted to the hot plate 5 via the heat pipe 4, and therefore the container 6 placed on the hot plate 5 is heated. heated. Therefore, even if the container 6 and the food/beverage 6a are taken out of the microwave oven after heating, the food/beverage 6a will be difficult to cool down since the container 6 is still somewhat heated. In addition, with such a configuration, the heat of the anode cylinder 3a is conducted to the hot plate 5, so there is no need for a radiator fin or a blower to cool the anode cylinder 3a, or the anode temperature of the magnetron becomes too high. In order to prevent this, it is sufficient to attach a small blower, making the microwave oven compact, lightweight, and inexpensive.

In the present invention, the cooling efficiency of the magnetron may be improved by applying cooling air from a blower to the heat pipe 4.

Further, in the present invention, the heat of the power supply section 7 is transferred to the heat pipe 4.
It may also be conducted to the hot plate 5.

As explained above, according to the microwave oven with a built-in hot plate according to the present invention, the hot plate can be heated, and the container storing the food can be heated by this, so the food and drink can be kept warm after being heated. It has a certain effect.

[Brief explanation of drawings]

FIGS. 1 and 2 are simplified configuration diagrams showing an embodiment of a microwave oven with a built-in hot plate according to the present invention. 1... Microwave oven body, 2... Oven, 3... Magnetron, 4... Heat pipe, 6
... Container, 7 ... Power supply section, 8 ... Switch, 9 ... Adjustment dial. Book 1 illustration 2 illustrations

Claims (1)

[Claims] 1. A hot plate for arranging a container for storing food and drink is provided at the bottom of the oven, and the heat generated by the magnetron is conducted to the hot plate via a heat pipe, so that when heating the food and drink with high frequency, A microwave oven with a built-in hot plate, characterized in that the container is heated by heat conduction, and an excessive rise in temperature of the magnetron itself is also prevented.