JPH04126A - heating cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a heating cooker.

Conventional technology A conventional heating cooker will be explained below.

FIG. 5 is a cross-sectional view of a conventional heating cooker, and FIG. 6 is a perspective view of a main part of the same heating cooker.

In conventional heating cookers, the wall of the heating chamber 1 is connected to the upper heater 2.
The food 4 in the heating chamber 1 is heated by heating with the lower heater 3 to raise the internal temperature in the heating chamber 1.

At this time, the exhaust gas 5 containing oily smoke, steam, etc. generated from the food 4 is forcibly discharged from inside the heating chamber 1 through the exhaust pipe 7 to the outside of the main body 8 by the sirocco fan 6. Purification is performed when the oil passes through the oil smoke purification catalyst 9 installed inside. Furthermore, the oil smoke purification catalyst 9 is heated by the exhaust gas 5 to ensure the oil smoke purification temperature. Also,
During cooking, the cooling fan IO rotates and sucks cooling air 12 from the main body intake port 11 into the electrical room 16, and the cooling air 12 cools the electrical components 13 and the sirocco fan motor 14 that drives the sirocco fan 6. Uede body exhaust port 1
5 to the outside of the main body 8. Also, the exhaust pipe 7 is the sixth
As shown in the figure, it is formed by spot welding an U-shaped exhaust pipe upper part 17 and a flat plate-shaped exhaust pipe lower part 18 at their overlapping parts.

Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, the exhaust pipe 7 is cooled by the cooling fan 10 that starts rotating during cooking, and the temperature of the exhaust gas 5 in the exhaust pipe 7 decreases. When the steam condenses, the upper part 17 of the exhaust pipe and the lower part 1 of the exhaust pipe
Water droplets that seeped out from the joint surfaces fell into the electrical room, causing a ground fault in live parts such as the electrical parts 13 and the sirocco fan motor 14, posing the risk of electric shock to the user. .

The present invention solves the above-mentioned conventional problems, and aims to provide a heating cooker that prevents water droplets from falling into the electrical room from the joint surface of the exhaust pipe and improves safety.

Means for Solving the Problems To achieve this object, the heating cooker of the present invention has a structure in which the entire exhaust pipe that guides the air inside the heating chamber to the outside of the main body is covered with a heat insulating material.

Effect: With this configuration, even if the cooling fan starts rotating during cooking, the exhaust pipe is covered with a heat insulating material, so the temperature of the exhaust gas flowing through the exhaust pipe can be maintained at a high temperature.

EXAMPLE Hereinafter, a heating cooker according to an example of the present invention will be described with reference to the drawings.

Fig. 1 is a sectional view of a heating cooker according to a first embodiment of the present invention, Fig. 2 is a perspective view of main parts of the same cooker, and Fig. 3 is a sectional view of a heating cooker according to a second embodiment of the present invention. Perspective view of main parts, 4th
The figure is a perspective view of essential parts of a heating cooker according to a third embodiment of the present invention. In these figures, the same parts as in the conventional example shown in FIGS. 5 and 6 are given the same reference numerals.

As shown in FIG. 1, the cooking device according to the first embodiment of the present invention heats the wall surface of a heating chamber 1 with an upper heater 2 and a lower heater 3 to raise the internal temperature of the food.
Cook. The exhaust pipe 7 is composed of an upper part 17 of the exhaust pipe and a lower part 18 of the exhaust pipe, and the exhaust gas 5 generated inside the heating chamber 1 is forced to pass through the inside of the exhaust pipe 7 by the sirocco fan 6 and to the outside of the main body 8. Exhausted. The oil smoke purification catalyst 9 is installed in the exhaust stack 7 and purifies the exhaust gas 5 containing high temperature oil smoke and steam. Further, the oil smoke purification catalyst 9 is heated by the high-temperature exhaust gas 5 to ensure the temperature necessary to operate the oil smoke purification function. On the other hand, the cooling fan 10 rotates during cooking and takes in cooling air 12 from the main body intake port 11, and after cooling the electrical components 13, sirocco fan motor 14, etc., the cooling fan 10 is discharged from the main body exhaust port 15. Ru. An electric chamber 16 is provided in the upper part of the heating chamber 1 to house electric components 13, a sirocco fan motor 14, and the like. Further, the entire circumference of the exhaust pipe 7 is covered with a heat insulating material 19. The details of the exhaust stack 7 are shown in FIG. 2, and it has a structure in which the U-shaped upper part 17 of the exhaust pipe and the flat lower part 18 of the exhaust pipe are spot-welded at their overlapping parts, and the whole is covered with a heat insulating material 19. The oil smoke purification catalyst 9 is inserted inside the exhaust pipe 7.

As described above, according to this embodiment, the exhaust pipe 7 is connected to the heat insulating material 19.
Even if the cooling fan 10 starts rotating during cooking, the temperature of the exhaust gas 5 will not drop, preventing dew condensation, and the operating temperature of the oil smoke purification catalyst 9 in the exhaust pipe 7 will also be stabilized. In addition, the heat in the exhaust gas 5 does not have a thermal effect on the electrical components 13, the sirocco fan motor 14, etc.

Next, a second embodiment of the present invention will be described with reference to a perspective view of main parts shown in FIG.

In the embodiment shown in FIG. 3, the exhaust pipe 7 is composed of a U-shaped exhaust pipe upper part 17 and a flat exhaust pipe lower part 18, and the exhaust pipe lower part 18 is extended to the side of the exhaust pipe 7. The groove portion 20 is formed by bending the end portion upward.

In this way, the joint surface between the upper part 17 of the exhaust pipe and the lower part 18 of the exhaust pipe is formed in the groove 20, so water droplets seeping from the joint surface collect in the groove 20, and the electrical parts 13, the sirocco fan motor 14, etc. There is no chance of a ground fault on live parts.

Next, a third embodiment of the present invention will be described with reference to a perspective view of main parts shown in FIG.

In the embodiment shown in FIG. 4, the exhaust pipe 7 is made into a cylinder by bending one plate, one end is extended from the overlapping part to the side of the exhaust pipe 7, and the end is bent upward. Groove 2
0 is formed.

In this way, as in the second embodiment, water droplets seeping out from the joint surface will accumulate in the groove 20, and electrical parts 13, sirocco fan motor 14, and other live parts will not be grounded. Furthermore, since the exhaust pipe 7 is made from a single plate, the spont welds are halved compared to conventional ones.
The spot welding process becomes easier to manage and reliability is improved.

Effects of the Invention As described above, in the present invention, by covering the entire exhaust stack with a heat insulating material, even if the cooling fan starts rotating during cooking, the temperature of the exhaust gas flowing inside the exhaust stack does not drop, and dew condensation can be prevented. . Therefore, water droplets do not seep out from the joint surface of the exhaust pipe and fall onto live parts in the electrical room, which prevents ground faults in live parts, which in turn protects users from the risk of electric shock, making for excellent cooking. It is possible to realize a vessel.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a heating cooker according to a first embodiment of the present invention, Fig. 2 is a perspective view of main parts of the same cooker, and Fig. 3 is a sectional view of a heating cooker according to a second embodiment of the present invention. Perspective view of main parts, 4th
The figure is a perspective view of a main part of a cooking device according to a third embodiment of the present invention, FIG. 5 is a sectional view of a conventional cooking device, and FIG. 6 is a perspective view of a main part of the cooking device. ■・・・Heating chamber, 2・・・Upper heater (
heating device), 3...lower heater (heating device)
, 4... Food, 5... Exhaust (heating chamber air), 6... Scirocco fan (forced exhaust means), 7... Exhaust stack, 8... Main body, 9.
...Oil smoke purification catalyst, 13...Electrical parts,
19... Insulation material. Name of agent: Patent attorney Shigetaka Awano (1 person) I --- Toguchi P L Figure

Claims (3)

[Claims] (1) a heating chamber for storing food; an electric chamber provided at the top of the heating chamber for storing electrical components; a heating device for heating the food; an exhaust port for discharging air from the heating chamber; an exhaust pipe for guiding air in the heating chamber to the outside of the main body; a forced exhaust means for forcibly discharging the air in the heating chamber to the outside of the main body; A heating cooker having an oil smoke purifying catalyst for purifying air, and covering the entire exhaust pipe with a heat insulating material. (2) a heating chamber for storing food; an electric chamber provided at the top of the heating chamber for storing electrical components; a heating device for heating the food; an exhaust port for discharging air from the heating chamber; an exhaust pipe for guiding air in the heating chamber to the outside of the main body; a forced exhaust means for forcibly discharging the air in the heating chamber to the outside of the main body; It has an oil smoke purification catalyst that purifies the air, and the exhaust pipe part in the electrical room consists of a cylinder made by joining two bent plates, and the plate that makes up the lower part of the exhaust pipe extends laterally, and its tip A heating cooker whose portion is bent upward to form a groove. (3) a heating chamber for storing food; an electric chamber provided at the top of the heating chamber for storing electrical components; a heating device for heating the food; an exhaust port for discharging air from the heating chamber; an exhaust pipe for guiding air in the heating chamber to the outside of the main body; a forced exhaust means for forcibly discharging the air in the heating chamber to the outside of the main body; It has an oil smoke purification catalyst that purifies the air, and the exhaust pipe part in the electrical room is made of a cylinder formed from a single plate, and the plate forming the lower part of the exhaust pipe is extended laterally, and its tip is A heating cooker that is bent upward to form a groove.