JPH0517406U - Heating cooker - Google Patents

Abstract

(57) [Abstract] [Purpose] A part of oil smoke, odor, etc. generated in the heating chamber is thermally decomposed by the food heating heater to reduce the burden on the gas purification catalyst and to activate the gas purification catalyst. The purification catalyst heating heater is also used as the food heating heater. An exhaust hole group 21 communicating with an exhaust duct 22 is provided in a reflection plate 20 that covers the food heater 18 provided in the heating chamber 2 and reflects radiant heat rays to the food, and is adjacent to the exhaust hole group 21. The purification catalyst 23 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to purification of exhaust gas such as oil smoke, odor, etc. generated from food in a heating cooker having a radiant heater.

[0002]

[Prior Art]

 In order to purify oil fumes, odors, and other gases generated during cooking, a gas purification catalyst and a purification catalyst heater to activate the gas purification catalyst are installed in the exhaust passage from the heating chamber. The device is disclosed in Japanese Patent Application Laid-Open No. 2-293535.

In such a configuration, a purification catalyst heating heater must be provided separately from the food heating heater, resulting in high cost. Further, all the gases such as oil smoke and odor generated in the heating chamber must be treated with the purification catalyst, which imposes a heavy load on the gas purification catalyst.

[0004]

[Problems to be solved by the device]

 Part of the gas such as oil fumes and odors generated in the heating chamber is thermally decomposed by the food heating heater to reduce the burden on the gas purification catalyst, and a purification catalyst heating heater for activating the gas purification catalyst. , A food heater is also used to reduce costs.

[0005]

[Means for Solving the Problems]

 A heating chamber that stores food, a tubular radiant heater that heats food, a reflecting plate that covers the heating heater and reflects radiant heat rays to the food, an exhaust hole group provided in this reflecting plate, and this exhaust hole. A duct for exhausting exhaust gas from the group to the outside of the heating chamber is provided, and a purification catalyst for purifying oil smoke, odor, etc. generated in the heating chamber is provided in the duct in the vicinity of the exhaust hole group.

[0006]

[Operation] Since the exhaust plate group is provided in the reflection plate that reflects the radiant heat rays from the heater that heats the food product, and the gas purification catalyst is provided in the exhaust duct in the vicinity of this exhaust hole group, the heater that heats the food product Radiant heat activates the gas purification catalyst, and some of the gas such as oil smoke and odor is thermally decomposed when passing near the heater.

[0007]

【Example】

 FIG. 1 is an external perspective view of a heating cooker according to an embodiment of the present invention, in which 1 is a door that opens and closes a front opening of a heating chamber 2 that stores food, and 3 is an operation unit that sets heating conditions. The section 3 has a display section 4 for displaying an operation state, a decorative character sheet 6 provided on the operation section body 5 shown in FIG. 2, and a light-transmissive push button having a concave lens section for illuminating a wide range. 7 and a lamp 9 provided on the control circuit board 8 for illuminating the push button 7 and a switch 10 for inputting cooking conditions, and is a self-illuminating type that lights up and displays the switch operated in accordance with the selection of the cooking conditions. A push button switch 11 and the like are provided.

3 and 4 show a cross section of the heating chamber 2 of the embodiment of the present invention, and 12 is a rotary table provided at the bottom of the heating chamber 2 to which microwaves are supplied from a high frequency generator (not shown). Is driven by a motor 13 provided outside the heating chamber. 14 is a plate for supporting foods 16 supported by a plurality of protrusions 15 formed on both side walls of the heating chamber, and 17 is a U-shaped hook corresponding to the protrusion 15 provided on the back wall of the heating chamber. As shown in FIG. 4, when the rotary mounting plate 14a mounted and used on the rotary table is also used as a mounting plate for oven cooking, the end of the rotary plate is mounted on the protrusion 15 and the hook 17 is used. It fits into the U-shaped part and stably supports the rotating dish at a predetermined position in the heating chamber.

Reference numeral 18 denotes a tubular radiant heating heater that is disposed above the heating chamber 2 and heats food. An infrared reflective coating 19 that efficiently reflects radiant heat rays in a desired direction is provided on the upper surface of the heating heater 18. Has been formed. Reference numeral 20 is a reflecting plate that covers the heating heater 18 and reflects the heat rays radiated from the heating heater to the food 16, 21 is an exhaust hole provided in the reflecting plate 20 for discharging oil smoke, odor, etc. generated in the heating chamber to the outside of the heating chamber. A group 22 is a duct for guiding the exhaust gas from the exhaust hole group 21 to the outside of the cooking device, and a group 23 is provided in the duct 22 close to the exhaust hole group to purify oil smoke, odor, etc. in the exhaust gas. The catalyst 24 is an exhaust fan that is provided in the duct 22 and forcibly discharges the oil smoke, odor, etc. generated in the heating chamber 2 to the outside of the cooking device. The exhaust fan 24 exhausts the exhaust gas via the conduction belt 25. It is driven by the motor 26.

According to the above-mentioned configuration, the reflection coating 19 provided on the heater 18 compensates for the decrease in the reflection efficiency of the radiant heat due to the provision of the exhaust hole group 21 in the reflection plate 20, and the oil smoke and odor in the exhaust gas are removed. The purification catalyst 23 for purifying the like can be activated by heating with the radiant heat of the heater 18.

Further, since the reflection plate 20 is provided with the exhaust hole group 21, oily smoke, odor, etc. generated from the food due to the progress of heating and cooking gathers in the reflection plate 20 by thermal convection and passes near the heater 18. Since part of the oil smoke and odor is thermally decomposed by the heater 18, the purification load on the purification catalyst 23 is reduced.

[0012]

[Effect of the device]

 The exhaust hole group is formed on the reflector that reflects the radiant heat rays from the heating heater to the food, and a purification catalyst for purifying oil smoke and odors is installed in the vicinity of this exhaust hole group. Therefore, the purification catalyst can be heated, and a dedicated heater for activating the purification catalyst is unnecessary. Furthermore, since the exhaust of oily smoke, odor, etc. accompanying the heating and cooking of food passes near the heating heater, part of the oily smoke, odor, etc. is thermally decomposed by the heat of the heating heater, and the load on the purification catalyst is reduced. Ru

[Brief description of drawings]

FIG. 1 is an external perspective view of a heating cooker according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a structure of a self-illuminating push button switch for selecting cooking conditions of the heating cooker according to the embodiment of the present invention.

FIG. 3 is a sectional view of a heating chamber of the cooking device of the present invention.

4 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 2 heating chamber 18 heating heater 20 reflector 21 exhaust hole group 22 duct 23 purification catalyst

Claims (1)

[Scope of utility model registration request] 1. A heating chamber for housing food, a tubular radiant heater for heating food, a reflector for covering the heater and reflecting radiant heat rays to the food, and a group of exhaust holes provided in the reflector. And a duct for discharging the exhaust gas from the exhaust hole group to the outside of the heating chamber, and a purification catalyst for purifying oil smoke, odor, etc. generated in the heating chamber is provided in the duct in the vicinity of the exhaust hole group. Heating cooker.