JPH03110324A - Cooker - Google Patents

Abstract

PURPOSE:To enable easy cleaning of a bottom face without damaging a lower heater and to prevent the occurrence of unevenness in temperature in a cooking chamber by a method wherein the lower heater is disposed in a level lower than that of the bottom wall of the cooking chamber at a portion located aside from the shaft part of a rotary disc, and an upper heater is provided at a portion on the opposite to the lower heater with a shaft part therebetween. CONSTITUTION:Since a lower heater 20 is mounted at a level lower than that of a bottom wall 15 of a cooking chamber 13, cleaning of the bottom face of the cooking chamber 13 is facilitated, and besides there is no fear of the heater 20 being damaged. since a radiant heat from the lower heater 20 permeates a heat permeable glass sheet 21 and is exerted on the interior of the cooking chamber 13, there is no trouble on heating applied on a food to be cooked in the cooking chamber 13. The lower heater 20 is disposed in a one-sided portion positioned aside from a shaft part 17 of a turn table 18. Since an upper heater 23 is mounted at a portion on the opposite side to the lower heater 20 with shaft part 17 therebetween, a portion where there is a fear of heating by the lower heater 20 being insufficient is supplemented by heating operation by the upper heater 20, and the unevenness in temperature can be prevented from occurring.

Description

Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention includes an upper heater and a lower heater that apply heat to the interior of a cooking chamber from above and below, respectively, and The present invention relates to a cooking appliance that includes a shaft portion for removably attaching a rotary plate to the bottom of a cooking chamber.

(Prior Art) This type of cooking device includes a microwave oven with an oven function. An example of this is shown in FIGS. 4 and 5.

In this microwave oven, an upper heater 2 is provided in the upper part of the cooking chamber 1, and a lower heater 3 is provided in the lower part.
Heat from heaters 2 and 3 is applied to the inside of the cooking chamber 1 from above and below. Further, a shaft portion 5 is provided on the bottom wall of the cooking chamber 1 in a protruding form for attaching a rotary plate, so-called turntable 4, made of a glass plate or a mesh plate in a removable manner. It consists of a rotating shaft of a turntable motor 6 provided at the lower part of the turntable.

(Problems to be Solved by the Invention) By the way, the bottom surface of the cooking chamber 1 tends to be relatively dirty and is cleaned frequently. However, in the above-mentioned system, since the lower heater 3 is located at the bottom of the cooking chamber 1, this becomes an obstacle and is difficult to clean, and there is a risk of damaging the lower heater 3. As a countermeasure to this problem, there is a device in which the lower heater is made removable, but with this device, it is troublesome to attach and detach the lower heater, and there is also a risk of damaging the heater when attaching and detaching it.

Therefore, the inventor proposed a configuration in which the lower heater is disposed below the bottom wall of the cooking chamber, and the upper part of the bottom wall of the lower heater is formed of a heat-permeable plate member. I'm thinking of doing it. In this way, while the heat of the lower heater can be applied to the inside of the cooking chamber, the lower heater is not exposed to the bottom surface to be cleaned, thereby facilitating cleaning.

However, in this case, since there is a shaft on the bottom wall of the cooking chamber for removably attaching the turntable, when installing the lower heater below the bottom wall, it is necessary to attach the lower heater to the shaft and the turntable. It is necessary to dispose it in a position away from the cooking motor, that is, in the front or rear side of the cooking chamber, or in a position offset to the right or left side.

If the lower heater is installed in a lopsided position in this way,
There is a concern that temperature unevenness may occur within the cooking chamber.

The present invention has been made in view of the above circumstances, and its purpose is to provide a cooking method that allows cleaning of the bottom of the cooking chamber easily and without damaging the heater, and also that prevents temperature unevenness within the cooking chamber. It is to provide the equipment.

[Structure of the Invention] (Means for Solving the Problems) The present invention includes an upper heater and a lower heater that apply heat to the interior of the cooking chamber from above and below, respectively, and a heater that applies heat to the bottom of the cooking chamber. In the device equipped with a shaft portion for removably attaching a rotary plate, the lower heater is disposed in a region below the bottom wall of the cooking chamber and avoids the shaft portion, and At least an upper part of the lower heater of the bottom wall is formed of a heat-permeable plate member, and the upper heater is provided at a portion opposite to the lower heater across the shaft part. has.

(Function) Since the lower heater is located below the bottom wall of the cooking chamber, when cleaning the bottom of the cooking chamber, the cleaning can be done easily without being obstructed by the heater. There is no risk of injury.

Further, since the radiant heat of the lower heater passes through the heat-transmissive plate member and acts on the inside of the cooking chamber, there is no problem in heating the food to be cooked inside the cooking chamber.

In this case, when viewed from above, the lower heater will be placed in an off-center part of the cooking chamber away from the shaft, but the upper heater is different from the lower heater. Because it is located on the opposite side across the
For areas where there is a concern about insufficient heating by the lower heater, the heating effect by the upper heater compensates for it, eliminating temperature unevenness.

(Example) Hereinafter, a first example of the present invention will be described with reference to FIGS. 1 to 3.

Reference numeral 11 denotes an outer box of a microwave oven with an oven function, and a casing 12 with an open front is disposed inside the casing, and the inside of the casing 12 is used as a heating chamber 13. and outer box 1
A door 14 is provided on the front side of 1. This door 14 is
It is of a back-and-forth rotation type with the lower part as a rotational fulcrum, and a handle 14a is provided at the upper part. Bottom wall 15 of the heating chamber 13
A turntable motor 16 is disposed below the central portion, and its rotating shaft is a shaft portion 17 that passes through the bottom wall 15. A turntable 18, which is a rotating plate, is removably attached to this shaft portion 17. This turntable 18 is made of a glass plate or a mesh plate.

The lower plate portion 12a of the casing 12, which constitutes the main portion of the bottom wall 15, has a recessed portion 19 with an inverted trapezoidal cross section formed in its front portion, and a lower heater 20 is disposed in this recessed portion 19. It is set up. A glass plate 21 having heat permeability and heat resistance, which is a heat permeable plate member, is disposed at the upper opening periphery of the recessed portion 19. Therefore, the lower heater 20 is provided below the bottom wall 15 and away from the shaft 17, and the upper part of the lower heater 20 in the bottom wall 15 is made of a heat-permeable plate. It is composed of a glass plate 21 which is a member and has heat permeability and heat resistance.

On the other hand, 22 is a swollen portion for arranging the upper heater 23, and this is a portion of the upper plate portion 12b of the housing 12 that is on the opposite side with the shaft portion 17 in between from the one recessed portion described above. (rear). An upper heater 23 is disposed in this bulge 22 . Therefore, the upper heater 23 is provided on the opposite side of the lower heater 20 with the shaft portion 17 interposed therebetween. Note that 24 is a magnetron, and 25 is a waveguide.

Now, in the above configuration, when performing oven cooking, the lower heater 20 and the upper heater 23 are energized. In this case, the turntable 18 on which the food to be cooked is placed is connected to the motor 1.
Rotationally driven by 6.

Thus, the heat from both heaters 20 and 23 acts on the inside of the cooking chamber 13 to heat and cook the food. In particular, the radiant heat from the lower heater 20 passes through the heat-transparent glass plate 21 and irradiates and heats the food to be cooked in the cooking chamber 13.

According to this embodiment, since the lower heater 20 is provided below the bottom wall 15 of the cooking chamber 13, cleaning of the bottom surface of the cooking chamber 13 is not obstructed by the lower heater 20. Therefore, cleaning can be easily performed, and there is no risk of damaging the heater 20.

In addition, the radiant heat of the lower heater 20 is transmitted through a heat-transparent glass plate 21.
passes through the cooking chamber 13 and acts on the inside of the cooking chamber 13.
3. There is no problem in heating the food inside.

Furthermore, the lower heater 20 is installed at a part of the cooking chamber 13 that is off-center, avoiding the shaft part 17 when viewed from above. is provided on the opposite side across the shaft portion 17, so the upper heater 20 is used for areas where there is a concern that the lower heater 20 may be insufficiently heated (in this case, the rear part).
This can be compensated for by the heating effect of

In particular, according to this embodiment in which the lower heater 20 is provided at the front and the upper heater 23 is provided at the rear, the upper heater 23 is moved away from the handle 14a located at the top of the door 14. 14a does not get hot and is easy to use.

In each of the embodiments described above, a part of the bottom wall 15 of the cooking chamber 13 is made of a heat-resistant plate member.
The entire bottom wall of the cooking chamber 13 may be made of a heat-resistant plate member.

In addition, the lower heater 20. The upper heater 23 is located at the front,
Instead of a rear relationship, it may be a rear, front, left, right, or even right, left relationship.

In addition, the invention of the vehicle is not limited to the above-mentioned embodiments; for example, the upper and lower heaters and the rotary plate mounting can be widely applied to any heating cooker having a shaft portion of the same type, and various modifications may be made without departing from the scope of the invention. It can be implemented by

[Effects of the Invention] As is clear from the above description, the present invention includes an upper heater and a lower heater that apply heat to the interior of the cooking chamber from above and below, respectively, and a heater that applies heat to the bottom of the cooking chamber. In the device provided with a shaft portion for removably attaching a rotary plate, the lower heater is disposed in a region below the bottom wall of the cooking chamber and avoids the shaft portion, and At least an upper part of the lower heater of the bottom wall is formed of a heat-permeable plate member, and the upper heater is provided at a portion opposite to the lower heater across the shaft part. This makes it possible to easily clean the bottom of the cooking chamber without damaging the lower heater.Furthermore, even though the lower heater is installed in a lopsided location, it is possible to clean the bottom of the cooking chamber easily and without damaging the lower heater. This has the effect of preventing temperature unevenness.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, FIG. 1 is an overall vertical sectional side view, and FIG. 2 is an arrow shown in FIG.
A sectional view taken along a line, and FIG. 3 a partial perspective view. 4 and 5 are a diagram corresponding to FIG. 1 and a diagram corresponding to FIG. 3, respectively, showing a conventional example. In the figure, 11 is an outer box, 12 is a housing, 12a is a lower plate part, 13
1 is a cooking chamber, 15 is a bottom wall, 17 is a shaft, 18 is a turntable (rotating plate), 20 is a lower heater, 21 is a glass plate (
(plate member), 23 is an upper heater.

Claims (1)

[Claims] 1. An upper heater and a lower heater that apply heat to the interior of the cooking chamber from above and below, respectively, and a shaft portion for removably attaching a rotary plate to the bottom of the cooking chamber. , the lower heater is disposed below the bottom wall of the cooking chamber and avoids the shaft portion, and at least an upper portion of the lower heater of the bottom wall is made heat permeable. 1. A cooking appliance characterized in that the upper heater is formed from a plate member, and the upper heater is provided at a position opposite to the lower heater across the shaft portion.