JPH11325482A - Halogen heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sustain the heating top face of a heater constantly in clean and hygienic state by forming a thin film coating layer having catalytic function on the surface of a heat-resistant glass for mounting a heating container and decomposing contaminant adhering to the surface of the heat-resistant glass automatically through catalytic action at the time of heating cooking. SOLUTION: When a halogen lamp 5 constituting the heater section 6 of a halogen heater 1 is heated through conduction, temperature of an upper heat- resistant glass constituting a heating top section rises and a heating container 8 mounted thereon is heated. A thin film coating layer 9 of photocatalyst, e.g. titanium dioxide, having catalytic function is formed on the surface of the heat-resistant glass. Light from the halogen lamp 5, or the like, causes to exhibit catalytic function of the coating layer 9 and contaminant boiling over the heating container 8 and adhering to the heat-resistant glass is decomposed automatically. Consequently, the heating top part is sustained constantly in clean and hygienic state without requiring any artificial cleaning.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-port type halogen stove mainly used for a tabletop which uses a lamp heater having a built-in heater such as a halogen lamp as a heat source, and more particularly to prevention of stain on a heating top portion. is there.

[0002]

2. Description of the Related Art As a conventional heating cooker using a lamp heater emitting infrared rays as a heat source, a heating top portion for mounting a heating container is made of heat-resistant glass so that the heating top portion becomes flat. A so-called smooth stop type halogen stove is generally used.

[0003]

However, in order to prevent the surface of the heat-resistant glass constituting the heating top surface of the above-mentioned conventional halogen stove from being stained, it has heat resistance, transmits heat well, and adheres to the glass. There was nothing excellent and effective.

[0004] For this reason, a large amount of foods, oils, seasonings, and the like spilled out of the pot during heating and cooking adhere to the surface of the heat-resistant glass, so that the surface of the heat-resistant glass sticks firmly due to heat and cannot be wiped off. Dirt gradually accumulates, heat transmission on the heat-resistant glass surface deteriorates, heating efficiency of the stove decreases, cooking time decreases,
Furthermore, there has been a serious problem in practical use, such as an abnormal increase in the temperature inside the stove, which impairs the heat resistance of the components.

[0005]

In order to solve the above-mentioned problems, the present invention is to form a thin coating layer made of a photocatalytic material having a catalytic function on the surface of a heat-resistant glass as a heating top portion.

According to the above invention, the dirt attached to the heat-resistant glass surface is strongly decomposed and purified by the oxidizing power of the photocatalytic material.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention can be carried out in the form described in each claim. As described in claim 1, a heat-resistant glass on which a heating vessel is mounted and an infrared ray directly below the heat-resistant glass are provided. And a stove section using a lamp heater that emits light as a heating element, wherein a thin-film coating layer having a catalytic function is formed on the surface of the heat-resistant glass.

Further, the thin-film coating layer having a catalytic function is made of a photocatalytic material.

The heat-resistant glass surface, which is the heating top surface of the halogen stove, is not decomposed and purified from oil stains and the like caused by spilling during cooking, so that it does not remain. A clean, clean heating surface can be maintained.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of a halogen stove according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the halogen stove.

In FIG. 1 and FIG. 2, a halogen stove 1 of the present invention includes a heating top portion composed of a heat resistant glass 2 using crystallized glass, and two halogen lamps 5 immediately below the heat resistant glass 2. The stove section 6 is provided as a heat source. The stove section 6 is opened at the top and is in contact with the heat-resistant glass 2 by a spring 7.

The heat-resistant glass 2 has a heating zone 3 and a non-heating zone 4, and the heating zone 3 is located immediately above the stove 6 in which the halogen lamp 5 is provided. The higher part,
This is the portion where the heating container 8 is placed.

A thin coating layer 9 of a photocatalytic material having a catalytic function is formed on the surface of the heat-resistant glass 2.

Here, the thin film coating layer 9 of the photocatalytic material was applied to the surface of the heat-resistant glass 2 by spin coating using a titania sol solution, dried, and fired at 600 ° C. to form a titanium dioxide film. Things. At this time, the thickness of the catalyst coating layer 9 was twice
Micron.

Next, the operation and operation will be described. When the halogen lamp 5 of the halogen stove 1 is energized, high heat is generated through the quartz tube, the temperature of the plate heat glass gradually increases, and the placed heating container 8 is heated and cooked. As a result, a large amount of various food materials adhere to the surface of the heat-resistant glass 2 and become extremely contaminated. These stains gradually become firmly adhered to by heat and may not be removed by rubbing with a little force.

The wiping work is extremely troublesome, and if left unattended, it becomes unsanitary and is one of the most hated things in this type of cooker. On the surface of the heat resistant glass 2, a thin film coating layer 9 of a titanium dioxide photocatalyst is formed. Therefore, the dirt is decomposed by the catalytic action of titanium dioxide when the light of the halogen lamp 5 or the indoor fluorescent lamp is irradiated.

This is because the catalyst surface of titanium dioxide is energetically high when it is irradiated with light, and when it is in an excited state, an extremely strong oxidative decomposition force is generated, and the dirt is completely converted into carbon dioxide and water. This is because they will be decomposed.

As a result, it takes much time and labor for manual wiping becomes unnecessary, and the surface of the heat-resistant glass 2 of the halogen stove 1 is always clean and can be kept clean.

Although a halogen lamp or a fluorescent lamp is used as a light source, if the heat-resistant glass 2 is exposed to sunlight in the daytime and is irradiated with ultraviolet rays, the remaining dirt is decomposed and purified even if it cannot be completely purified within the cooking time. It is economical because you can do it.

In the embodiment, the titania sol is applied by a spin coating method. However, the application is not particularly limited to this method, and a spraying or immersion method can of course be employed.

[0022]

As is apparent from the above description, the halogen stove of the present invention has the following effects.

[0023] A thin coating layer of a photocatalytic material that exerts a strong oxidative decomposition power when light strikes the surface of the heat-resistant glass, which is the heating surface of the halogen stove, breaks down the dirt that has adhered during cooking. The heating top surface is always clean,
And a sanitary halogen stove can be provided.

[Brief description of the drawings]

FIG. 1 is an external view of a halogen stove according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the halogen stove.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Halogen stove 2 Heat resistant glass (heating top part) 5 Halogen lamp (lamp heater) 6 Stove part 8 Heating container 9 Thin film coating layer

Claims (2)

[Claims] 1. A heat-resistant top comprising a heat-resistant glass portion on which a heating vessel is mounted, and a stove portion having a heating element immediately below the heat-resistant glass and having a lamp heater for radiating infrared rays. Halogen stove with a thin coating layer having a catalytic function. 2. The halogen stove according to claim 1, wherein the thin film coating layer having a catalytic function is made of a photocatalytic material.