JPS6210521A - Heating and cooking device - Google Patents

Abstract

PURPOSE:To prevent a poor insulation of a heater caused by water vapor and further prohibit an outer casing from being increasing in its temperature by a method wherein a water-proof plate having a specific shape is installed between the heater mounted outside a ceiling part of the heating chamber and the upper part of the outer casing. CONSTITUTION:A water-proof plate 13 is mounted between the upper part of an outer casing 2 and an upper heater 3 at the upper part of a heating chamber 1 with its front side being held high and its rear side being held low, water drain ports 14 are made at the bottom surface of an outer casing 2 and radiation holes 15 are made in the upper surface of the casing. Wind generated by a cooling fan 10 is guided into the heating chamber 1 and then discharged out of the device through the discharging hole 6 together with water vapor or gas generated in the path, adhered to the upper part of the outer casing 2, dropped onto the water-proof plate 13 as water droplet, flowed down onto the rear part of the heating chamber, and then discharged through the water drain ports 14. Water dropped onto the upper surface of the outer casing 2 and entered the device is also discharged through the same path. Both water vapor generated inside the device and water entered from outside the device are not directly dropped on to the upper heater 3, so that an accident of electrical shock such as electrical leakage may not occur.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cooking device equipped with a heater.

Conventional technology In recent years, heating cooking devices using various heaters, such as electric ovens and microwave ovens with an oven function, have been using surface heaters that have advantages such as the ability to increase the effective volume of the heating chamber and ease of cleaning. More and more devices are being installed on the ceiling or bottom of a room.

A conventional heating cooking device with a surface heater of this type will be explained. FIG. 3 is a side sectional view of a conventional open microwave oven with a surface heater, and FIG. 4 is a partially cutaway plan sectional view of the same device. 1 is a heating chamber in which food is placed and cooked; 2
3 is an outer box that forms the outer shell of the device; 3 is an upper heater that is installed on the upper surface of the ceiling of heating chamber 1 to heat the food placed in heating chamber 1 from above; 4 is installed at the bottom of heating chamber 1. 6 is an insulating material installed to cover the upper part of the upper heater 3 to keep the heat in the heating chamber 1 better, 6 is an exhaust hole, 7 is a plate for attaching the door, 8 is a lower heater that heats the food from the bottom; 1 is a decorative board installed at the top of the door, 9 is a magnetron that generates high frequency waves, 1o is a cooling fan that cools the magnetron 9, 11 is an air guide that guides the cooling air from the cooling fan 10 into the heating chamber 1, and 12 is a heater This is a control device that controls the components 3 and 4 and the high frequency generator 9.

Problems to be Solved by the Invention However, such conventional cooking devices have the following problems.

When cooking with a microwave oven, air generated by the magnetron 9 and the cooling fan 1o of the control device 12 is guided into the heating chamber 1 by an air guide 11 in order to exhaust water vapor and gas from the food generated in the heating chamber 1. The wind pressure causes the air to be exhausted through an exhaust hole 6 provided at the rear of the outer box 2. However, water vapor leaks from gaps in the exhaust passage from the heating chamber 1 to the exhaust hole 6, and the leaked water vapor adheres to the inside of the upper surface of the outer box 2 as water droplets, and eventually ends up in the insulation material 6.
It will fall on top of. The falling water droplets soak into the heat insulating material 6 and reach the upper heater 3, causing insulation failure of the heater 3. The heater 3 having poor insulation poses a serious problem as it poses a risk of electric shock to the user of the device.

Furthermore, in the case of open grill cooking, the heat from the heater 3 causes the top surface of the outer box 2 to reach a high temperature, which is also dangerous and uncomfortable for the user of the apparatus. , outer box 2
Providing heat radiation holes on the top surface can prevent the top surface of the outer box 2 from becoming hot, but if the user accidentally spills water on the top surface of the outer box 2, the water will leak out from the heat radiation holes. Conventionally, it has been impossible to provide heat dissipation holes in the upper surface of the outer box 2, as this may cause insulation failure of the penetrating heater 3.

Furthermore, in oven grill cooking, there was a problem in that the plate 7 attached to the door constituting the front surface of the heating chamber 1 was deformed by the heat of the heater 3. When the door is attached, when the plate 7 is deformed, the decorative plate 8 installed thereon is also deformed, leaving a gap between the plate 7 and the front part of the upper surface of the outer box 2, making the appearance very unsightly.

The present invention solves these conventional problems, and has a simple structure that prevents poor insulation of the heater due to water vapor and high temperatures of the outer box 2, and has the advantage of not damaging the external appearance due to heat. It provides heated cooking.

Means for Solving the Problems The heating cooking device of the present invention includes a heating chamber in which the food to be cooked is placed;
An outer box forming an outer shell of the device, a heat radiation hole installed on the top surface of the outer box, a heater installed on the outside of the ceiling of the heating chamber, and a drainage hole provided on the bottom of the outer box. , comprising a water-resistant plate installed between the upper part of the outer box and the heater,
The water-resistant plate covers the entire surface of the heater and is sloped so that the front part is high and the rear part is low, and the door mounting is fixed to the plate and the heating rear part.

Function: In the heating cooking device of the present invention, a water-resistant plate is installed between the heater installed on the outside of the ceiling of the heating chamber and the upper part of the outer box so as to cover the entire surface of the heater. Even if it adheres to the top and falls as water droplets, it will be blocked by the water-resistant plate and will not fall onto the heater. Furthermore, since the water-resistant plate is installed at an angle so that the front part is high and the rear part is low, water droplets that fall on the water-resistant plate will flow down to the rear of the heating chamber and drain to the outside of the device through the drainage hole provided at the bottom of the outer box. be discharged.

As a result, water and meat juices do not remain on the water-resistant plate forever, and no bad odor is generated. Also, by providing a water-resistant plate, it becomes possible to make heat radiation holes in the upper part of the outer box.

Even if a user spills water on the top of the outer box and enters the inside of the device through the heat radiation hole, the water-resistant plate prevents water from falling into the heater. The upper part does not get hot and is safe. Additionally, the water-resistant plate itself has an insulating effect that blocks the heat from the heater, and plays a role in lowering the temperature at the top of the outer box. Furthermore, the water-resistant plate is fixed with screws to the plate and the rear of the heating chamber to which the door is attached, but this water-resistant plate is not a reinforcement, and even when the door plate becomes hot during open grill cooking, it will deform. There is no gap or difference in level between the outer box and the decorative panel at the top of the door, which was seen in the past.

EXAMPLE Hereinafter, a heating cooking apparatus according to an example of the present invention will be explained with reference to the drawings. FIG. 1 is a side sectional view of an open microwave oven with a surface heater according to the present invention, and FIG. 2 is a partially cutaway top sectional view of the same device. A water-resistant plate 13 is installed between the upper part of the outer box 2 and the upper heater 3 installed at the upper part of the heating chamber 1, with the front part (door side) being high and the rear part being low. A drainage hole 14 is provided on the bottom surface of the outer box 2, and a heat radiation hole 15 is provided on the top surface. The wind generated by the cooling fan 1o that cools the magnetron 9 and the control device 12 is guided into the heating chamber 1 through the air guide 12, and is discharged from the exhaust hole 6 along with the steam and gas generated during cooking. Leakage occurs, adheres to the upper part of the outer box 2, and falls as water droplets.

The water droplets fall onto the water-resistant plate 13 and flow down toward the lower rear part of the heating chamber. The running water is drained out of the device through a drainage hole 14 provided at the bottom of the outer box 2.

If a user accidentally spills water on the top surface of the outer box 2, the water that enters the device through the heat radiation hole 16 will also be discharged out of the device through the same route. In this way, neither the water vapor generated inside nor the water intruding from the outside falls directly onto the upper heater 3, making the device highly safe and free from electric shock accidents such as leakage. In addition, since water vapor and meat juices are immediately discharged from the device, the device can be said to be preferable from a hygienic point of view since it does not create a bad odor.

In addition, a heat radiation hole 15 is provided at the top of the outer box 2, and a water-resistant plate 13 is provided.
It is open for the insulation effect to block the heat of the heater 3.
Even during grill cooking, the upper part of the outer box 2 does not get hot and is safe for the user. Furthermore, the heat insulation effect of the water-resistant plate 13 improves the heat retention of the heating chamber 1, which is advantageous for open cooking.

In addition, the water-resistant plate 13 is installed with screws on the door mounting plate 7 and the rear of the heating chamber 1, but since the water-resistant plate 13 is reinforced, the door mounting plate 7 will not warp or deform even during open grill cooking. The device has an excellent appearance because there are no gaps or steps between the outer box 2 and the decorative board 8, which were seen in the past.

Effects of the Invention As described above, the heating cooking device of the present invention has a water-resistant plate installed between the top surface of the outer box and the heater installed at the top of the heating chamber, with the front section being high and the rear section being sloped. As a result, the following unique effects can be obtained.

(1) If water vapor generated inside the device adheres to the top surface of the outer box and falls as water droplets, or if the user accidentally spills water on the top of the device and the water enters the inside of the device through the heat radiation holes, the water-resistant plate may Since water is not directly splashed on the heater, it is possible to create a highly safe device that does not cause electric shock accidents.

(2) Since the water-resistant plate is installed so that the rear part is lower, water that falls on the water-resistant plate quickly flows down to the rear of the heating chamber and is drained out of the device from the drainage hole provided at the bottom of the outer box. Ru. Since water vapor, meat juice, etc. do not remain in the device forever, it is possible to provide a sanitary device that does not generate bad odors.

(3) Because of the water-resistant plate, it is possible to install heat radiation holes on the top of the outer box, and since the water-resistant plate still has an insulating effect that blocks the heat of the heater, the top of the outer box remains open even when cooking on an open grill. It is possible to provide a safe device that does not get hot and is easy for the user to use.

(4) The water-resistant plate acts as a reinforcing material, and when the door is attached during open grill cooking, even if the plate is exposed to heat, it will not warp or deform.The door is attached to the decorative plate installed on the plate and the outer box. There will be no unsightly appearance such as gaps or steps between the

As described above, the cooking device of the present invention has extremely advantageous effects in practice.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a cooking device according to an embodiment of the present invention, FIG. 2 is a partially cutaway plan sectional view of the same device, and FIG.
The figure is a side sectional view of a conventional heating cooking device, and FIG. 4 is a partially cutaway plan sectional view of the same device. 1... Heating chamber, 2... Outer box, 3...
...Top heater, 13...Waterproof plate, 14...
... Drain hole, 15 ... Heat radiation hole.

Claims (2)

[Claims] (1) A heating chamber in which the food to be cooked is placed, an outer box forming the outer shell of the device, a heat radiation hole installed on the top surface of the outer box, a drainage hole installed on the bottom surface of the outer box, and the The heater is installed on the outside of the upper surface of the heating chamber, and the water-resistant plate is installed between the upper part of the outer box and the heater, and the water-resistant plate covers the entire upper part of the heater, and has a high front part and a high rear part. A heating cooking device configured to have a slope so as to be lower. (2) The heating cooking device according to claim 1, wherein the water-resistant plate is fixed to the door mounting plate to which the door is attached and to the rear part of the heating chamber.