JPH0395320A - High frequency cooking device - Google Patents

Abstract

PURPOSE:To make a uniform heating of a discharging and purifying device and to make a high efficient purification of oil mist and odor generated from a food by a method wherein a discharging and purifying device having a plurality of passing openings to cause the discharged gas to be passed and purified, and a discharging and purifying device heating system arranged within a groove installed in a wall between the openings from a surface not opposing to the heating chamber of the discharging and purifying device are provided. CONSTITUTION:A discharging and purifying device 14 is installed in a discharging guide 13 for use in guiding the smoke or odor generated in a heating chamber 3 into the outside of a main body 11. A discharging and purifying device 14 has some rectangular column-like openings 20 acting as passages for the oil mist generated from a food 2, and a groove 21 parallel with the openings 20 is provided in the wall between the openings 20. A plate-like heater line 15 for the discharging and purifying device is buried in the groove 21. One surface 14a provided with the groove 21 is arranged at a side not opposing against the heating chamber 3, and its rear surface 14b is opposed against the heating chamber 3 and the purifying device 14 is arranged. Since the heater 15 is arranged at an entire surface of the purifying device 14, the oil mist or odor passing through the purifying device 14 can be uniformly increased and then a purifying efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cooking device for cooking food in a heating chamber using a heating device.

[Conventional technology]

BACKGROUND ART In conventional heating cookers, an exhaust gas purification device is used to purify oily smoke, odor, etc. generated when cooking food in a heating chamber, and discharge the purified smoke and odor into the heating chamber. For example, as shown in Japanese Utility Model Application Publication No. 57-108005, exhaust gas is effectively purified by heating the exhaust gas purification device. FIG. 3 is a sectional view showing an example of a heating cooker having such a conventional exhaust purification device. The cooking device 1 in this figure shows a state in which food 2 is cooked in a heating chamber 3, and a door 4 is provided in the front of the heating chamber 3 so as to be openable and closable. A heating device 5 is provided inside the heating chamber 3, and the food 2 is placed on a food 7ti placing stand 6. An exhaust guide 8 is provided at the top outside the heating chamber 3 to guide oil smoke, odor, etc. generated by the heating chamber 3 to the outside of the cooking device main body 1. There is oil smoke 2 inside the exhaust guide 8.
In order to purify odors and the like, a purification device 9 having a catalyst and an exhaust gas purification device heater 10 that heats the purification device 9 to produce a catalytic action are provided.

(Problems to be Solved by the Invention) However, in this arrangement, the exhaust gas purification device 9 was not heated uniformly because the exhaust gas purification device heater 10 was disposed on the outer periphery of the exhaust gas purification device 9. Therefore, there was a problem in that sufficient purification performance could not be obtained, and oil smoke, odor, etc. generated from the food were discharged outside the main body.

The present invention has been made in view of the problems of conventional heating cookers, and is a heating cooking method with high purification performance that uniformly heats the exhaust gas purification device and purifies oily smoke, odors, etc. generated from food. The technical challenge is to provide equipment.

[Means to solve the problem]

The present invention is a heating cooker that heats and cooks food in a heating chamber, and includes a heating chamber that stores and heats food in a main body, a heating device that increases the ambient temperature in the heating chamber, and a heating device that controls exhaust gas during cooking. An exhaust guide for guiding the exhaust from the heating chamber to the outside of the main body, an exhaust purification device provided in the exhaust guide and having a plurality of penetrating openings to allow the exhaust to pass through and purify it, and an exhaust purification device that does not face the heating chamber of the exhaust purification device. An exhaust purification device heating device is installed in a groove in the wall between the openings from the surface and heats the exhaust purification device almost uniformly, and the exhaust gas purified by the exhaust purification device is forced out of the main body from the exhaust guide. The device is characterized by comprising an exhaust means for exhausting the air.

[Effect]

According to the present invention having such characteristics, the oily smoke and odor discharged from the heating chamber are given to the exhaust purification device within the exhaust guide. Since the exhaust purification device is uniformly heated by a heater provided in the wall between the openings, the exhaust gas passing through the openings is also uniformly heated. In this way, oil smoke, odors, etc. are reliably purified and exhausted to the outside of the cooking device using the exhaust means. [Embodiment] FIG. 1 is a cross-sectional view showing the structure of a heating cooker according to an embodiment of the present invention, and the same parts as in the conventional example described above are indicated using the same reference numerals. In this embodiment, a heating chamber 3 for storing and heating eating crystals 2 is provided in the cooking device main body 11, and a door 4 that can be opened and closed is provided in the front of the heating chamber 3.

A heating device 5, a food placing table 6 on which the food 2 is placed, and a drainboard net 12 are provided in the heating chamber 3. An exhaust guide l3 is provided at the upper rear side of the heating chamber 3 to guide smoke and odor generated within the heating chamber 3 to the outside of the main body 11. Exhaust guide l3
The inside has an exhaust gas purification device 14, and the air purified by the exhaust gas purification device 14 is sent to the exhaust port at the top of the exhaust gas purification device 14.
A motor 17 and an exhaust fan 18 are provided as an exhaust means 16 for forcibly discharging the air to the outside. Also, a slight gap 19 is provided at the top of the door 4 to serve as an intake port for air into the heating chamber 3.

Now, the inside of the exhaust gas purification device 14 has a catalyst, which has a large number of openings as described later, and is heated by the exhaust gas purification device heater 15.

The exhaust gas purification device heater 15 raises the temperature of the exhaust gas purification device 14 and removes the oil smoke generated from the food 2 by its catalytic action.
It decomposes odors, etc. into water and carbon dioxide gas.

FIG. 2 is an exploded perspective view showing the appearance of the exhaust gas purification device 14 and the exhaust gas purification device heater 15 used in this example. Second
In the figure, the exhaust gas purification device 14 is a rectangular parallelepiped member, and is made up of a large number of square column-shaped openings 20 that pass through and serve as passageways for oil smoke, odor, etc. generated from the food 2.
A plurality of grooves 21 parallel to the opening 20 are provided in the wall between the holes 20 and 20 as shown in the figure. Further, a plate-shaped heater wire is embedded in the ilI 21 as a heater 15 for the exhaust purification device. In this way, at least one side of the opening 20 is connected to the heater 1 for the exhaust gas purification device.
Close to 5. Specifically, one surface 14a of the exhaust gas purification device l4 on which s21 is provided is provided on the side that does not face the heating chamber 3, and the exhaust gas purification device 14 is arranged with its back surface 14b facing the heating chamber 3.

In this way, the exhaust gas purification device heater 15 is connected to the exhaust gas purification device l.
4, the temperature of the oil smoke and odor passing through the exhaust gas purification device 14 can be raised evenly and uniformly, and the purification efficiency can be improved. Furthermore, since the groove 21 provided in the stray air purifying device 14 has a small width, there is no fear that the opening 20 will become smaller due to the groove 21.

〔Effect of the invention〕

As described above, according to the present invention, since the exhaust gas purification device heater is disposed between the walls of the opening of the exhaust gas purification device, the exhaust gas purification device can be heated in a short time, and the entire surface can be heated to a uniform temperature. Therefore, the purification performance of the exhaust gas purification device can be improved. Furthermore, since the surface on which the heater for the exhaust gas purification device is disposed does not face the heating chamber, the heater for the exhaust gas purification device will not be exposed to the smoke, odor, etc. generated from the food. Therefore, the heater for the exhaust gas purification device has no fear of corrosion or the like, and can be made into a highly durable heating device. In addition, the heater for the wandering air purification device is installed with a groove between the openings of the exhaust gas purification device, making it possible to make the opening larger, thereby reducing the amount of oily smoke generated by food. Air in the heating chamber can be reliably discharged to the outside of the main body without odor remaining in the heating chamber without being discharged. Furthermore, since the exhaust port of the heating chamber and the heater for the exhaust gas purification device are not facing each other, the heater for the exhaust gas purification device is insulated through the exhaust port of the heating chamber, and the user may accidentally connect the exhaust port to the heater. There is no risk of electric shock even if a metal rod is inserted, and it is extremely safe.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a heating cooker according to an embodiment of the present invention, Fig. 2 is an exploded external perspective view of an exhaust purification device and a heater for the exhaust purification device in an embodiment of the present invention, and Fig. 3 is a conventional one. FIG. 2 is a cross-sectional view of the heating cooker. 2...Food 3...Heating chamber 5
−・−・・−・Heating device l3−・・・1 exhaust guide
I4-- Exhaust purification device L5-- Heater for wandering air purification device l6-- Exhaust means 17--
・1 Exhaust motor 18...1 Exhaust fan
20...One opening 21.------ Groove.

Claims (2)

[Claims] (1) A heating chamber for storing and heating food in the main body, a heating device for increasing the ambient temperature in the heating chamber, and an exhaust guide for guiding exhaust gas during cooking from the heating chamber to the outside of the main body. an exhaust gas purification device provided in the exhaust guide and having a plurality of penetrating openings to allow exhaust gas to pass through and be purified; an exhaust gas purification device heating device disposed in a groove that heats the exhaust gas purification device substantially uniformly; and an exhaust means for forcibly exhausting the exhaust gas purified by the exhaust gas purification device from the exhaust guide to the outside of the main body. A heating cooker characterized by: (2) The heating according to claim 1, wherein the through hole of the exhaust gas purification device is made up of a plurality of square column-shaped openings, and at least one side of each opening is formed in close proximity to the exhaust gas purification device superheating device. Cooking device.