JPH0325043Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a microwave oven that also has a heater heating function.

(b) Prior art In the conventional microwave oven as seen in Japanese Utility Model Application Publication No. 58-39401, a microwave-transparent cover covering a stirrer for stirring microwaves is attached to the heating chamber wall using multiple screws. is fixed.

(c) Problems to be solved by the invention In the case of the above structure, the cover must be installed and fixed by tightening a plurality of screws one by one, which has disadvantages such as poor assembly workability.

(d) Means for solving the problem The microwave oven of the present invention has a microwave-transparent cover that covers the microwave stirring stirrer in the heating chamber where microwave heating and heater heating are performed, and the microwave-transparent cover that holds the flange thereof. A plurality of holders for stacking and fixing the cover, and a only notch formed from the flange of the cover to the side wall of the cover, through which one of the plurality of holders can be fully inserted when the cover is attached or removed. and the plurality of holders are such that when one of the holders corresponds to the notch and the cover is moved in the direction of the corresponding holder, the flange is released from being held.
It is characterized by its distributed arrangement.

(e) Effects In such a means, the cover can be mounted so that the flange is held by a plurality of holders, and the assembly work efficiency is greatly improved without using a plurality of screws as in the conventional case. Furthermore, the notch provided for attaching and detaching the cover extends from the flange of the cover to the side wall, and is large enough to allow one of the holders to pass through, so that the notch provided when the stirrer rotates within the cover. Air flows inside and outside the cover through the notch, and as a result, even if the heat is transferred to the cover during heating by the heater, the inside of the cover does not reach a high temperature. It becomes unnecessary to have a heat-resistant structure. Furthermore, the rotation of the stirrer inside the cover can be easily confirmed through the cutout.

(F) Embodiment The drawing shows a microwave oven according to an embodiment of the present invention. 1 is a heating chamber in which food 2 is stored; 3 is a magnetron that generates microwaves for heating the food in the heating chamber; 4 is placed in the heating chamber 1; and is driven by a motor 5 to generate microwaves. A stirrer 6 is made of a microwave-transmissive material such as ceramics or heat-resistant glass; a cover covering the stirrer; 7 a heater located around the cover 6 in the heating chamber 1; Exhaust part 1
This hot air circulation fan is arranged in a heating chamber 1 partitioned by a partition plate 11 having a diameter of 0.0 and is driven by a motor 12. When the circulation fan is driven and the heater 7 is driven, hot air circulates within the heating chamber 1 as indicated by the arrow in FIG. 1, and the food 2 is heated with hot air.

Now, to explain in detail the mounting structure of the cover 6, the cover 6 has a cylindrical shape with a bottom and has a flange 13 at the periphery of the upper opening. On the other hand, on the upper wall 1a of the heating chamber 1, there are three holding fittings 14a, 14b, 14c for fixing the cover 6 to the upper wall 1a by holding the flange 13.
is fixed. These holding fittings 14a, 14
As shown in FIG. 2, b and 14c are distributed so that the line connecting each metal fitting and the center axis 0 of the stirrer 4 maintains an interval of 120 degrees from each other. Further, the cover 6 has the holding fittings 14a, 14b, 14c.
Only one notch 15 is formed through which one of the two can be fully inserted. This notch extends from the flange 13 of the cover to the side wall, as shown in detail in FIG.

Therefore, when installing the cover 6, first the notch 15 is attached to the holding fittings 14a, 14b,
14c (for example, the metal fitting 14a), and attach the flange 13 of the cover 6 to the upper wall 1.
Apply to a. Then, the cover 6 is moved in the direction away from the corresponding holding fitting 14a (arrow A in FIG. 4) to the state shown in FIG. Then,
The flange 13 is the remaining holding fittings 14b, 14
It is engaged and held by c. Thereafter, the cover 6 is slightly rotated clockwise (FIG. 2), whereby the notch 15 is attached to the corresponding one of the holding fittings 1.
4a, therefore, the flange 13 is also engaged and held by one of the holding fittings 14a, and the installation of the cover 6 is completed.

Next, when removing the cover 6, perform the operation opposite to the above-mentioned installation, and first remove the cover 6.
in the opposite direction to the above-mentioned rotation, and the above-mentioned notch 1
5 corresponds to the one holding fitting 14a.
As a result, the flange 13 is connected to the metal fitting 14a.
The hold will be released. Thereafter, the cover 6 is moved toward the holding fitting 14a. Then, the flange 13 is attached to the remaining holding fitting 14.
The engagement and retention at b and 14c are also released, and the cover 6 is removed.

Here, the cover 6 can be attached and detached without using any screws, resulting in good workability.

Further, the cutout portion 15 is provided with the holding fittings 14a, 14.
b, 14c is large enough to allow one of them to be inserted sufficiently, so that the wind generated when the stirrer 4 rotates within the cover 6 passes through the notch 15 to the cover 6.
Circulate both inside and outside the country. As a result, when the stirrer 4 is rotated when the heater is heated, even if the heat is transferred into the cover 6 during heating, the inside of the cover 6 will not reach a high temperature due to the air flow, and the stirrer inside the cover 6 will not reach a high temperature. 4 and the like is not required to have an expensive heat-resistant structure.

Further, the rotation of the stirrer 4 inside the cover 6 can be easily confirmed through the cutout 15.

(g) Effects of the invention According to the invention, the flange of the cover that covers the stirrer is held by multiple holders to attach the cover, eliminating the need to use multiple screws as in the past, and reducing assembly work. performance is greatly improved.

Furthermore, in order to attach and detach the cover, the cover has a structure in which the only notch through which one of the plurality of holders can be inserted is formed, and this notch is made to exist from the flange of the cover to the side wall of the cover and has a sufficient size. Therefore, the wind generated when the stirrer rotates inside the cover flows inside and outside the cover through the notch, and therefore,
Even if heater heat is transmitted into the cover during heating by the heater, the inside of the cover can be prevented from becoming high temperature, and it is not necessary to provide an expensive heat-resistant structure for the stirrer or the like in the cover.

Furthermore, since the notch is large enough to extend from the flange of the cover to the side wall of the cover,
The rotational state of the stirrer inside the cover can be easily confirmed through this notch.

Furthermore, in order to eliminate the need for the stirrer inside the cover to have an expensive heat-resistant structure and to ensure that the rotating state of the stirrer inside the cover can be easily checked, it is necessary to This can be achieved by simply making use of the only notch provided and extending this notch from the flange of the cover to the side wall of the cover, without complicating the structure in any way.

[Brief explanation of the drawing]

The drawing shows a microwave oven according to an embodiment of the present invention.
The figure is a sectional view, Figure 2 is a bottom view taken along the - line in Figure 1,
FIG. 3 is a perspective view of the main part, and FIG. 4 is a sectional view of the main part when the cover is attached and removed. 1... Heating chamber, 3... Magnetron, 4... Stirrer, 6... Cover, 7... Heater, 13...
Flange, 14a, 14b, 14c... Holding metal fitting, 15... Notch.

Claims (1)

[Scope of utility model registration request] A heating chamber for storing food, a microwave supply means for heating the food in the heating chamber with microwaves, a heater for heating the food in the heating chamber, a stirrer for stirring the microwave in the heating chamber, and a flange. a microwave transparent cover that covers the stirrer; a plurality of holders that attach and fix the cover by holding the flanges;
The plurality of holders are formed from the flange of the cover to the side wall of the cover, and have a unique notch through which one of the plurality of holders can be fully inserted when the cover is attached or removed; A microwave oven characterized in that the microwave oven is arranged in a distributed manner so that when the cover is moved in the direction of the corresponding holder in a state corresponding to the notch, the flange is released from being held.