JP2002015711A - Infrared light bulb and device using the same - Google Patents

Abstract

(57) [Summary] [Problem] An infrared light bulb having a high emissivity of heat rays, and heating, drying, heating, warming, cooking, medical treatment, roasting, and the like using the same.
Provided is an apparatus used for aging, fermentation, thawing, baking, sterilization, and the like. SOLUTION: In an infrared lamp using a sintered body composed of a composition that becomes carbon after firing, an inorganic filler, and carbon or graphite as a heating element, sintering is performed so that the surface contains more carbon components than the inside. The formed heating element is used. This infrared light bulb has a block made of a carbon-based material bonded to both ends of the heating element with a carbon-based adhesive, an inner lead wire having one end wound around and fitted to the block, and another end portion of the inner lead wire. And an electrode assembly having a molybdenum foil bonded to the metal foil and an external lead wire bonded to the molybdenum foil. The electrode assembly is inserted into a heat-resistant transparent glass tube, filled with an inert gas, and the heat-resistant transparent glass tube is melted and sealed at the molybdenum foil portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an infrared light bulb using a heating element formed of a sintered body of a substance containing carbon, and a heating device, a drying device, a heating device, and a heat retaining device using the same. , Cooking equipment, medical equipment, roasting equipment, aging equipment, fermentation equipment, thawing equipment, sterilization equipment, and baking equipment.

[0002]

2. Description of the Related Art As an infrared light bulb conventionally used as a heat source, there is an infrared light bulb in which a tungsten spiral filament is held at the center of a glass tube by a plurality of tungsten supports. Further, there are a heater in which a nichrome wire is inserted into a quartz tube, a sheathed heater in which a metal resistance wire is inserted into a stainless steel tube, and an insulating material powder is densely packed around the metal resistance wire. However, the infrared emissivity of tungsten filament, nichrome wire, and stainless steel used for these conventional heat sources is 3
It is as low as 0 to 50%.

Further, an infrared light bulb using a tungsten filament has a problem that a rush current is large and flicker and noise are generated. In addition, the use of multiple tungsten supports to hold the tungsten spiral filament in the center of the glass tube also complicates its assembly. In particular, it has been difficult to enclose a plurality of tungsten spiral filaments in order to achieve high output.

[0004] On the other hand, a heater using a nichrome wire has a problem in that the rising temperature at the time of turning on the power is slow and the rapid heat property is low. In addition, the sheathed heater has a problem that the quick heat property is particularly poor and the price is high.

In order to solve these problems, Japanese Patent Application Laid-Open No. H11-54092 discloses an infrared light bulb that uses a rod-shaped substance containing carbon as a heating element instead of a conventional tungsten spiral filament or nichrome wire. Proposed. This heating element for an infrared light bulb is formed of a sintered body of carbon or graphite and an inorganic filler, and has a high infrared emissivity of about 80%, so that the infrared emissivity of the infrared light bulb is also high. Further, the temperature of the heating element is set to 1000
Since the temperature is around ° C., it is possible to provide a light bulb which emits infrared rays matching the absorption wavelength of the organic substance and is excellent in heating the organic substance.

[0006]

However, the infrared light bulb disclosed in Japanese Patent Application Laid-Open No. H11-54092, which uses a sintered body of a carbon-containing substance as a heating element, has a large amount of inorganic material to increase its resistance. Contains filler. Therefore, when the cross section of the heating element is observed, the inorganic filler is exposed on the surface of the heating element. When an infrared light bulb is formed using the sintered body in such a state as a heating element, the emitted light becomes synthetic emitted light containing the emitted light of an inorganic filler in addition to the emitted light of carbon having an emissivity close to that of a black body. .

Since the inorganic filler is not a black body, its emissivity is lower than that of carbon. Therefore, the combined emissivity of the inorganic filler containing the emitted light decreases. That is, the more the inorganic filler is exposed on the surface, the lower the emissivity of the heating element is, and the more disadvantageous the heating effect by radiation, particularly, the heating of organic substances and moisture. When such an infrared light bulb is incorporated into a heating, drying, heating, heat retention, cooking, medical treatment, roasting, aging, fermentation, thawing, sterilization or baking apparatus, the temperature rise rate of the radiated object becomes small, There is a problem that the device has low thermal efficiency.

An object of the present invention is to provide an infrared light bulb having a heating element made of a substance containing carbon having a high emissivity of radiated light, and to provide various devices having high thermal efficiency using the infrared light bulb. .

[0009]

The infrared light bulb of the present invention comprises:
In a sintered body containing a composition that becomes carbon after firing, an inorganic filler, and carbon or graphite, a heating element made of a sintered body having a structure in which the surface of the sintered body has a larger amount of carbon components than the inside thereof, 1 At both ends of the heating element, a block of a substance containing carbon bonded with a carbon-based adhesive, a coil-shaped part having one end wound around and fitted to each of the blocks, and a spring part connected thereto. Internal lead wire, a molybdenum foil bonded to each other end of each of the internal lead wires, an external lead wire bonded to each of the molybdenum foils, and an electrode structure including each of the above components is inserted. It has a heat-resistant transparent glass tube that is housed therein, sealed with an inert gas therein, and melt-sealed the portion near the molybdenum foil.

[0010] According to the infrared light bulb having this configuration, in the cross-sectional structure of the sintered body used for the heating element, the surface layer is configured so as to contain more carbon component than inside,
As the component of the synthetic radiation described above, more radiation is emitted from carbon. As a result, the infrared emissivity is further improved as compared with the conventional heating element in which the inorganic filler is exposed in the surface layer. In other words, the infrared light bulb of the present invention has high thermal efficiency because the infrared radiation intensity in the portion having a peak wavelength of 2 to 3 μm is high. Further, since the absorption wavelength of water or an organic substance is 2 to 3 μm, the absorption of the organic substance or the water-containing substance becomes larger, and the organic substance or the water-containing substance can be heated with less energy. In particular, the infrared light bulb of the present invention shows a great effect on various foods, human skin, organic substances such as paints, water drying, and the like.

[0011] In the heating device of the present invention, one or more infrared light bulbs having the above-described structure are mounted on the upper, lower, and side surfaces of the housing, or on a plurality of locations thereof. This heating device is equipped with an infrared bulb with a high infrared emissivity at a wavelength near the absorption wavelength of organic substances and water, so a stove that heats with radiant heat,
When used in devices for warming the human body, such as saunas, kotatsu, foot warmers, and heating and drying devices for bathrooms and dressing rooms, the speed of warming the skin is high. Of course, the effect is remarkably large as compared with a conventional Nichrome wire heater or a Colts heater in which a tungsten wire coil is sealed.

In the drying apparatus of the present invention, one or more infrared light bulbs having the above-mentioned structure are mounted on the upper, lower, side, or a plurality of locations of the housing. Since this drying apparatus is equipped with an infrared light bulb having a high infrared emissivity having a wavelength near the absorption wavelength of an organic substance or water, it is optimal for heating water. As a result, drying of photographic paper after washing with water, drying of clothing, drying of tableware, drying of futon, drying of paint containing organic solvent,
It has a great effect in an apparatus for drying printed matter, drying a washed printed circuit board, and the like.

In the heating device of the present invention, one or more infrared light bulbs having the above-described structure are mounted on the upper, lower, and side surfaces of the housing, or on a plurality of these places. Since this heating device is equipped with an infrared bulb having a high infrared emissivity having a wavelength near the absorption wavelength of an organic substance or water, it is suitable for a heating apparatus for a substance containing a large amount of an organic substance or moisture. For example, heating of drinking water, heating of an ornamental aquarium, defrosting equipment of a refrigerator, heating of a water heater or a garbage disposal equipment, and copying machines such as LBP, PPC and PPF which are printed on paper by melting organic substances. When used for a heating device for fixing toner, a heating device for food, or the like, heating can be performed faster than heating with another heat source, which saves energy. In addition, according to the results of experiments using the infrared light bulb of the present invention for food, for example, a grilled chicken device, it has been proved that the surface is not burnt so much, the inside is heated, and umami can be heated without escape.

In the heat retaining device of the present invention, one or more infrared light bulbs having the above-described structure are mounted on the upper, lower, side, or a plurality of positions of the housing. This warming device is equipped with an infrared light bulb having a high infrared emissivity having a wavelength near the absorption wavelength of organic matter and water, and thus has a good warming effect and is suitable for keeping food warm. For example, it is most suitable for heat retention of a deli cart (a transport vehicle used in hospitals and the like that carries arranged meals in a warm state), meat buns, sausages, grilled chicken and takoyaki. As a result of applying the present invention to a yakitori heat retaining device, it has been found that an energy saving effect of about 5% is obtained as compared with a conventional infrared light bulb using a heating element formed by sintering a substance containing carbon.

Further, an energy saving effect of about 30% was recognized as compared with the conventional nichrome wire heater, Colts lamp and halogen lamp. Further, it was excellent in quick heat property, and a full power state could be achieved in about 5 seconds. However, conventional sheathed heaters, nichrome wire heaters, and Colts heaters require 1 to 5 minutes to reach a full power state, which is very effective in terms of energy saving. This effect was observed not only in the heat retention device but also in all other devices such as a drying device and a heating device. This is because each device has a common feature that the substance to be treated is a substance containing water or an organic substance.

In the cooking apparatus of the present invention, one or more infrared light bulbs having the above-described configuration are mounted on the upper, lower, side, or multiple sides of the housing. This cooking apparatus is suitable for heating and cooking food because it is equipped with an infrared light bulb having a high infrared emissivity of far infrared rays near the absorption wavelength of organic substances and water. For example, a microwave oven with a heater for food heating,
If used in various home or business food heating and cooking devices such as roasters and toasters that bake fish, microwave ovens that heat food, grilled chicken devices, or hamburger cooking devices that are used for business, A large energy saving effect can be realized as compared with an apparatus using another heat source. Further, as described above, since far-infrared rays penetrated into the inside of the food, the food could be cooked without burning, and the taste was similar to that cooked over a charcoal fire.

In the medical device of the present invention, one or more infrared light bulbs having the above-described structure are mounted on the upper, lower, side, or a plurality of locations of the housing. Since this medical device is equipped with an infrared light bulb having a high infrared emissivity at a wavelength near the absorption wavelength of human skin, which is an organic substance, it has a high heating effect and is suitable for a medical heating device. . As a specific example, when applied to an infrared treatment device, the warmth was large, and it was confirmed that there was a great effect by comparison with thermography.

In the roasting apparatus of the present invention, one or more infrared light bulbs having the above-described structure are mounted on the upper, lower, side, or multiple sides of the housing. This roasting apparatus is suitable for roasting and heating food because it is equipped with an infrared light bulb having a high infrared emissivity having a wavelength near the absorption wavelength of organic substances and water. As a specific example, it was very effective for roasting sesame, iriko, coffee, barley tea, peanuts, bean confectionery, almonds and the like. In addition to the above-mentioned foods, the infrared light bulb of the present invention is effective for roasted foods.

The ripening device of the present invention is equipped with one or more infrared light bulbs having the above-mentioned structure, on the upper side, the lower side, the side surface side of the housing, or a plurality of these places. By changing the color temperature of the heating element of the infrared light bulb of the present invention from 2000 ° C. of the conventional example to about 1000 ° C., it was found that this aging device had a large effect of aging the food. As a specific example, by setting the color temperature of the heating element to about 1100 ° C., an effect of ripening foods such as fruit wine, pickles, ham, smoked, sausage, cheese, and the like was recognized.

In the fermentation apparatus of the present invention, one or more infrared light bulbs having the above-mentioned structure are mounted on the upper, lower, side, or a plurality of locations of the housing. It has been found that this fermentation apparatus has a large effect on the heating of the fermentation processing of food by changing the color temperature of the heating element of the infrared light bulb in the same manner as the aging apparatus described above. As a specific example, the effect was recognized when applied to a fermentation apparatus for yogurt, vinegar, soy sauce, lactic acid beverage, oolong tea, or fermented liquor.

In the thawing apparatus of the present invention, one or more infrared light bulbs having the above-mentioned structure are mounted on the upper, lower, and side surfaces of the housing, or on a plurality of these places. Since this thawing apparatus uses an infrared light bulb having a high infrared emissivity having a wavelength near the absorption wavelength of an organic substance or water, the frozen food has good heat absorption and can be thawed in a short time. As a result of applying this thawing apparatus to the thawing of frozen foods such as fish and meat, the thawing time of the frozen foods is longer than that of conventional thawing equipment using an infrared light bulb having a heating element formed of a sintered body of a substance containing carbon. About 5%. The fast thawing time means that there is little loss of taste, and it is a very effective device in recent years, which has become more and more severe in taste.

In the sterilization apparatus of the present invention, one or more infrared light bulbs having the above-mentioned structure are mounted on the upper, lower, side, or a plurality of locations of the housing. This sterilizer has a sterilizing effect on the infrared light itself emitted from the infrared light bulb, and is effective for sterilizing buckwheat, bonito, fruits and vacuum-packed foods.
Further, although indirect, it can be applied to a device that heats water with infrared rays radiated from an infrared light bulb to generate steam and sterilizes hands and the like with the steam, and the effect was recognized.

In the firing apparatus of the present invention, one or more infrared light bulbs having the above structure are mounted on the upper, lower, and side surfaces of the housing or on a plurality of locations thereof. This firing device has a high infrared emissivity at wavelengths near the absorption wavelength of organic substances and water,
Suitable for food baking equipment. As a specific application example,
As a result of mounting the infrared light bulb of the present invention on a baking device such as kamaboko, bamboo ring, bread, cake, confectionery, roasted sweet potato, sweet chestnut, seaweed, fish meat, etc. as an industrial device, the surface of each food is baked with little browning There was found. This is presumably because the surface of the heating element contains a large amount of carbon components, thereby improving the emissivity of infrared rays, and because the moisture contained in the food is excited to generate heat, so that the internal moisture is also heated.

An apparatus using an infrared light bulb according to another aspect of the present invention is characterized in that a transparent or translucent material having heat resistance is installed so as to cover the infrared light bulb in the above-described various apparatuses. I do. According to this device,
During the heat processing of foods, various organic substances, or materials containing organic substances or water, it is possible to prevent scattering substances generated from the materials from adhering to the infrared light bulb. In addition, since the material covering the infrared light bulb is transparent or translucent, infrared rays radiated from the infrared light bulb are sufficiently applied to the object to be heated.
When the scattered substance adheres to the surface of the infrared light bulb, the radiation intensity is reduced and the efficiency can be prevented from being reduced.

In the apparatus having the above structure, the transparent or translucent material for covering the infrared light bulb is preferably quartz glass, crystallized glass or heat-resistant glass. The material is not limited to the above materials as long as it is a material through which the light emitted from the infrared light bulb is transmitted.
These materials having a large infrared transmittance at a wavelength of 6 μm are optimal.

In the above two devices, it is preferable that the cover made of a transparent or translucent material can be detached. In the apparatus having this configuration, the cover contaminated with the scattered matter released from the object to be heated by the heating process can be easily removed and washed. In particular, it is very effective for frequently used devices such as those for business use.

Further, in the above three devices,
It is preferable that a reflection plate is mounted behind the infrared light bulb, and a transparent or translucent flat plate or a deformed plate cover is mounted on the opposite surface of the reflection plate and the infrared light bulb. According to the apparatus having this configuration, the radiation plate of the infrared light bulb can be more radiated to the object to be heated by the reflection plate, and the radiation light is irradiated to the object to be heated through the transparent or translucent flat plate or the deformed plate. Can be prevented from being contaminated by scattered substances.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the infrared light bulb and the device using the same according to the present invention will be described below with reference to the accompanying drawings.

Embodiment 1 Hereinafter, an infrared light bulb according to Embodiment 1 of the present invention will be described with reference to FIGS.
FIG. 1 is a vertical cross-sectional view of an infrared light bulb using a sintered body formed of the substance containing carbon of Example 1 as a heating element, and FIG.
FIG. In the infrared light bulb of Example 1, the surface of a sintered body composed of a composition that becomes carbon after firing, an inorganic filler, and carbon or graphite had a structure in which the carbon component was larger than that of the inside, and a heating element was used as the heating element. Things.

In FIG. 1 and FIG. 2, both ends of the flat heating element 1 having the above-mentioned structure have cutouts 10a, 10b formed in blocks 3a, 3b made of graphite material, respectively.
And joined with a carbon-based adhesive. Coiled portions 5a, 5b formed at one end of the internal lead wires 4a, 4b are attached to the outer periphery of the blocks 3a, 3b by tight fitting. The spring portions 6a, 6b are connected to the coiled portions 5a, 5b of the internal lead wires 4a, 4b.
Are formed respectively. Molybdenum foils 7a and 7b are welded to the other ends of the internal lead wires 4a and 4b, respectively. External lead wires 8a and 8b are respectively joined to the other ends of the molybdenum foils 7a and 7b to form an electrode structure. This electrode assembly is inserted into the transparent quartz tube 2, and the transparent quartz tube 2 is melted and sealed by the sealing portions 9a and 9b. Argon gas is sealed inside the transparent quartz tube 2.

A method of joining the flat heating element 1 and the blocks 3a and 3b with a carbon-based adhesive is, for example, a method in which a paste-like material obtained by blending a fine particle size graphite or carbon powder with a phenol resin is used for each of the blocks 3a and 3b. Are applied to the cut portions 10a and 10b, and both ends of the flat heating element 1 are inserted and dried. Thereafter, it is fired in an inert gas at a temperature of 1000 ° C. or more to carbonize and bond the resin component. The molybdenum foils 7a and 7b are not limited to molybdenum materials, but may be of any material other than molybdenum as long as the material can melt and seal the quartz tube.

Here, the configuration of the heating element, which is a feature of the present invention, will be described in detail with reference to FIG. FIG.
It is an expanded sectional view of the internal structure of the heating element formed by sintering the substance containing carbon of the present invention. In FIG. 3, a heating element 11 formed by sintering a substance containing carbon has an inorganic filler 1
3 and fine carbon or graphite material 12 are solidified and sintered by carbon 14 carbonized after firing. As shown in FIG. 3, the cross-sectional structure is such that the carbon or graphite material 12 is distributed more near the surface 15 of the heating element 11 and the carbon or graphite material 12 is distributed more inside the inorganic filler 13.
Is included in the structure.

The heating element having such a structure can be produced, for example, as follows. Inorganic filler 13 (40% by weight) such as boron nitride (Shin-Etsu Chemical Co., Ltd., average particle size 5 μm) and natural graphite fine powder (Nippon Graphite Co., Ltd., average particle size 5 μm)
m) and a resin (such as chlorinated vinyl chloride resin (T-741 manufactured by Nippon Carbide Co., Ltd.) such as chlorinated vinyl chloride resin (T-741 manufactured by Nippon Carbide Co., Ltd.) having shapeability and a high carbon residue yield after firing. 40% by weight) and a plasticizer (15% by weight) such as a diallyl phthalate monomer, and dispersed using a Henschel mixer to form a paste-like mixture.

Thereafter, the mixture was heated to a surface temperature of 120 ° C.
The mixture is sufficiently kneaded using a two-roll kneader maintained at a temperature, and then pelletized with a pelletizer to prepare a molding composition. These pellets were extruded at a speed of 3 m / sec at 130 ° C. using a die having a diameter of 1.5 mm with a screw-type extruder at a temperature of 130 ° C. while drying, and dried for 10 hours with a dryer at 200 ° C. to form a precursor (carbon precursor). ) Create a wire rod. This precursor wire is placed in an inert gas at 1000
By sintering at a temperature of not less than ° C., a heating element of this configuration is obtained.
It is appropriate that the temperature is raised slowly at a rate of 5 to 50 ° C./h during firing.

Examples of resins and plasticizers having a shape-forming property and a high carbon residue yield after firing include polyvinyl chloride, polyacrylonitrile, and polyvinyl alcohol in addition to the above-mentioned chlorinated vinyl chloride and diallyl phthalate monomer. ,
A thermoplastic resin such as a copolymer of polyvinyl chloride and polyvinyl acetate, a polyamide, or the like, or a thermosetting resin such as a phenol resin, a furan resin, an epoxy resin, an unsaturated polyester resin, or a polyimide can be used. Not only these alone but also a mixture of two or more kinds may be used. As the inorganic filler, in addition to the above boron nitride, silicon carbide, metal carbide such as boron carbide, metal nitride such as silicon nitride,
Metal oxides such as aluminum oxide and silicon oxide, and silicides such as tungsten silicide and molybdenum silicide can be used.

At this time, by controlling the amounts of the plasticizer and the resin and the extrusion conditions, a layer containing a large amount of the fine powder 12 of carbon or graphite material can be formed on the surface portion 15 as shown in FIG. . In particular, the particle size of the fine powder 12 of carbon or graphite material and the amount of plasticizer added are important factors. In this sintered body, the carbon 14 carbonized by firing of the surface layer and the fine powder 12 such as graphite and carbon act as good electric conductors, and the inorganic filler 13 acts as a conduction inhibitor. Resistance. In addition, since it is formed of a sintered body, various shapes of heating elements such as the above-mentioned wire rod and other plate members can be produced. The infrared light bulb of Example 1 was prepared using the sintered body thus prepared as a heating element, and a conventional infrared light bulb using a sintered body not containing much carbon in the surface layer as a heating element was prepared for comparison. Then, the respective radiation intensity characteristics were compared.

The heating element has a thickness of 0.3 mm, a width of 6.2 mm,
The infrared light bulb of the first embodiment (power consumption: 60 mm) formed using a heating element having a length of 310 mm and a cold resistance of 16.5 ohms.
0W), the surface temperature of the heating element when AC100V is applied is
It became about 1100 ° C. When the wavelength distribution of the emitted light in the far-infrared region at that time was measured, it showed a peak value at about 2.1 μm.

On the other hand, for comparison, a conventional infrared light bulb with a power consumption of 600 W using a heating element having a small carbon content in the surface layer was prepared, and a wavelength of 1.38 μm to 1 in the far infrared region.
The emission intensity between 4.08 μm was compared. As a result, the infrared light bulb using the heating element of the present invention having a large amount of carbon in the surface layer had a larger radiation intensity of about 5 to 10%. This is because the infrared emissivity of carbon is 0.85, whereas the infrared emissivity of the inorganic filler is 0.8 or less. It is a thing.

This effect can be confirmed by comparing the infrared light bulbs having the same wattage with each other by increasing the temperature of the object to be heated by the infrared light bulb of Example 1 by about 5% to 10%. In other words, to raise the temperature of the object to be heated to the same temperature, it is sufficient to use an infrared light bulb with a low wattage of about 5 to 10% in power consumption, and an energy saving effect of about 5 to 10%. I can say.

The effect of improving the heating efficiency due to the difference in the intensity of infrared radiation is that, in the case of heating with an infrared light bulb, the main heat conduction is due to radiant heat, and the absorption wavelength of the object to be heated is 1 to 5 μm. Appear more remarkably when the temperature is raised. Substances having an absorption wavelength in such a region are:
Most organic substances, such as water and various organic substances, specifically, various foods containing water, human skin, synthetic fibers such as acrylic and nylon, paints, adhesives, etc., fall into this category. Therefore, it can be said that the apparatus using the infrared light bulb of the first embodiment for the object to be heated has extremely high heating efficiency.

An apparatus using the infrared light bulb of the present invention will be described below. The infrared light bulb of the present invention having a large heating effect of the organic substance shown in Embodiment 1 is applied to various devices described below, and is used as an energy-saving device, various food processing devices having the same cooking effect as charcoal, and commercial devices. And the like, and suitable results are obtained.

1) Heating device: stove, sauna, kotatsu, foot heater, bathroom drying / heating machine, stove for dressing room, etc. 2) Drying device: clothes dryer, dish dryer, futon dryer, various paints, coatings Drying and baking equipment, printed matter drying equipment, printed circuit board drying equipment after washing, photographic photographic paper drying equipment after washing, etc. 3) Heating equipment: drinking water heater, ornamental water tank heater, refrigerator defrost heater, Water heater, garbage disposal machine,
Heating equipment for various foods, LBP, PPC, PPF, FAX
4) Heating device: Delicate, meat bean, sausage, etc.
5) Cooking equipment: microwave oven, roaster, toaster, microwave oven, yakitori equipment, hamburger cooking equipment, various home-use cooking equipment, etc. 6) Medical equipment: infrared therapy equipment, etc. 7) Roasting Roasting equipment: Roasting equipment for sesame, iriko, coffee, barley tea, peanuts, bean confectionery, almonds, etc. 8) Ripening equipment: Ripening equipment for fruit wine, pickles, ham, smoked, sausage, cheese, etc. 9) Fermentation equipment: Yogurt, Vinegar, soy sauce, lactic acid drinks,
Fermentation equipment for oolong tea, fermented liquor, etc. 10) Defrosting equipment: Defrosting equipment for frozen foods 11) Baking equipment: Baking equipment for kamaboko, bamboo rings, bread, cake, roasted sweet potato, sweet chestnut, seaweed, fish meat, etc. 12) Sterilizing equipment: Soba, Katsuobushi For sterilizing foods, fruits, vacuum-packed foods, etc.

Embodiment 2 A food heating apparatus according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view of a food heating apparatus according to a second embodiment using the infrared light bulb of the present invention.

In FIG. 4, the food heating apparatus according to the second embodiment has an outer casing 23 made of an iron plate or an aluminum plate.
Further, two infrared light bulbs 20a and 20b of the present invention are attached to an upper portion inside the inner housing 24. Further, behind the infrared light bulbs 20a and 20b, a reflection plate 21 for condensing or scattering the emitted light downward is attached. Below the infrared light bulbs 20a and 20b, shielding plates 22a and 22b for shielding scattered substances generated from food during heating of the food are attached. The reflection plate 21 is formed of a stainless steel plate or an aluminum plate.
The shielding plates 22a and 22b are formed of a quartz plate, a crystallized glass plate, or a heat-resistant glass plate that transmits far infrared rays well. Experiments have also revealed that the same effect can be obtained by using a net-like metal plate as the material of the shielding plate.

With the food heating device thus prepared,
For example, I cooked yakitori. For comparison, it was compared with a conventional yakitori machine with a sheathed heater. as a result,
Comparing the grilled chicken, the time to bake the chicken core was shorter in the device equipped with the infrared light bulb of the present invention, and comparing the surface of the meat, the conventional grilled chicken machine had extremely strong browning. . Further comparisons of leeks showed a more pronounced difference. That is, the one baked with the infrared light bulb of the present invention was burnt softly to the core with little browning, but the one baked with the Shih Tzu heater burnt the surface of the green onion and partially carbonized. There was a part that was.

In addition, the taste of the grilled chicken was compared, and as a result of the opinion of a plurality of tasters, it was apparent that the food cooked by the apparatus of the present invention was more delicious. This difference is due to the fact that the wavelength of the emitted light of the infrared light bulb of the present invention matches the absorption wavelength of water in foods such as chicken and leeks, and that the emissivity of the heating element material is almost the same as that of charcoal. It can be inferred that it exhibited.

From these results, if the infrared light bulb of the present invention is used for heating and keeping various foods, it is possible to realize an energy-saving and delicious food cooking apparatus. This embodiment shows an example of food preparation, but cooking and heating of other ingredients,
It can easily be inferred that it is optimal for heat retention and firing.

As shown in FIG. 4, the shielding plates 22a,
22b is fitted into a step provided in the internal housing 24 and can be easily removed. Therefore, even if contamination by scattered matter occurs, it can be easily removed and washed.

In the second embodiment, a structure in which two infrared light bulbs are mounted has been described. However, one or three or more infrared light bulbs may be used, and may be selected according to the volume of the processing chamber. In the second embodiment, the configuration in which the infrared light bulb is mounted on the upper part has been described. Further, when a catalyst material, for example, a mixture of alumina or molecular sieve mixed powder and a platinum-based catalyst is applied to the inner surface of the inner housing 24, odors generated from food are removed, and environmentally favorable products can be realized.

In the second embodiment, the yakitori is described. However, the present configuration apparatus is used for heating and cooking food such as a heater for a microwave oven, a roaster, a toaster, and an oven toaster, and for heating a garbage disposal apparatus. It can be applied to applications. Further, a device having a similar structure can be applied to an apparatus for keeping food warm such as a deli cart, meat bun, takoyaki, sausage and the like. In addition, by changing the mounting position of the infrared light bulb, it can be immediately applied to clothes drying equipment, tableware drying equipment, etc.
Goods can be provided. In addition, if the combination of the infrared light bulb and the reflecting plate having the above configuration is used, a stove, a sauna, a kotatsu, a bathroom for drying and heating, a coating film after drying, a heating device such as an infrared therapy device, a drying device, a heating device Applicable as a device or a medical device.

Third Embodiment A business device according to a third embodiment of the present invention will be described with reference to FIG. FIG. 5 is a cross-sectional view of a continuously processable device applicable to a commercial heating, drying, cooking, roasting, thawing, baking, or sterilizing device.

In FIG. 5, four infrared light bulbs 30a, 30b, 30 according to the present invention are used in the commercial equipment according to the third embodiment.
c, 30d are attached to the upper part of the housing 35, and the reflection plates 31a, 31c
It is mounted at a slight interval behind 30d. On the lower side of the infrared light bulbs 30a to 30d, that is, on the object side,
A transparent or translucent glass plate 32 that transmits far infrared rays respectively
a, 32b, 32c, and 32d are attached in a detachable structure. The workpiece moves on a chain 34 having a mechanism for continuously moving, and the chain 34 is supported by a rotating roller 33. Chain 34
It is formed of a net or a metal rod or the like arranged at appropriate intervals.

Although not shown, it is more effective to provide a mechanism for rotating the object to be processed while rotating the object to be heated, such as a bamboo wheel or a sausage. The commercial equipment according to the third embodiment has an infrared light bulb attached only to the upper side.
At least one or more infrared light bulbs of the present invention having a reflection plate behind may be disposed on the lower side of the infrared light bulb. In this way, the rotation mechanism for the object to be processed can be omitted by using the double-sided processing.

Further, in the third embodiment, the configuration in which the object to be processed moves horizontally has been described. However, the configuration in which the workpiece moves in a vertical or inclined state can be realized without any problem. According to the apparatus for business use of the third embodiment, a drying apparatus for painted objects, clothes, tableware, printed matter, printed circuit boards, and the like can be provided. Further, if the object to be processed is changed to paper, it can be applied as a fixing and printing device for toner such as LBP, PPC, PPF, and FAX. In addition, food to be processed, for example, hamburger, fish, kamaboko, bamboo ring, laver, iriko, coffee, cooking, heating and drying of various foods,
An apparatus for roasting and baking can be provided.

If the infrared light bulb of the present invention is applied to the above-described apparatus, particularly for the treatment of water and organic substance-containing substances, the processing time can be shortened, and in cooking of food, the taste similar to charcoal-grilled can be continuously produced. Can be manufactured.

[0056]

As described in detail in the above embodiments, the infrared lamp of the present invention uses a sintered body made of a substance containing carbon as a heating element, and the surface layer of the sintered body contains a large amount of carbon component. It has a configuration including: Therefore, conventional sheathed heater, nichrome wire heater, Colt lamp heater,
The heating element has an infrared emissivity closer to that of a black body than a halogen lamp heater or a conventional infrared light bulb having a carbon-based material sintered body. As a result, an infrared light bulb having a high infrared radiation intensity in the far infrared region can be realized. Further, since the volume of the heating element is small and the resistance-temperature characteristic is almost flat, the temperature reaches the equilibrium temperature in a very short time after the power is turned on.

Further, the apparatus using the infrared light bulb of the present invention can shorten the processing time of various foods, that is, can realize an apparatus having a large energy saving effect, and can provide an apparatus having a taste close to that of a conventional charcoal grill. In addition, if the present invention is applied to various materials having an absorption wavelength close to the peak wavelength (approximately 2.1 μm) of the emitted light of the infrared bulb of the present invention or those having a surface state other than foods, the processing time can be shortened as described above. A type of device can be realized.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an infrared light bulb according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of FIG.

FIG. 3 is an enlarged cross-sectional view of a heating element used in the infrared light bulb according to the first embodiment of the present invention.

FIG. 4 is a sectional view of a food heating device according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a business device according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Heating element 2 Quartz glass tube 3a, 3b Block 4a, 4b Internal lead wire 5a, 5b Coiled portion 6a, 6b Spring portion 7a, 7b Molybdenum foil 8a, 8b External lead wire 9a, 9b Sealing portion 10a, 10b Cut portion DESCRIPTION OF SYMBOLS 11 Heating element 12 Carbon or graphite 13 Inorganic filler 14 Generated carbide after baking 20a, 20b, 30a, 30b, 30c, 30d Infrared light bulb 21, 31a, 31c Reflector 22a, 22b, 32a, 32b, 32c, 32d Cover 23 External Housing 24 Internal housing 33 Roller 34 Chain 35 Housing

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H05B 3/10 H05B 3/10 B 3/44 3/44 F term (Reference) 3K092 PP01 PP03 PP06 QA02 QB14 QB15 QB24 QB74 QC02 QC16 QC20 QC37 QC42 RA03 RB14 RC02 RD10 SS33 VV16 3L087 AA01 AA02 AA03 AA11 CA01 CA09 DA07 DA27 3L113 AA01 AB06 AC08 AC10 CB05 CB06 DA02 DA10

Claims (17)

[Claims] 1. A rod-shaped or plate-shaped heating element formed of a sintered body containing a composition that becomes carbon after firing, an inorganic filler, and carbon or graphite, and one or more heating elements at both ends. A block of a substance containing carbon, each of which is bonded with a carbon-based adhesive; an inner lead wire having a coil-shaped part wound around one end of each block and a spring part connected thereto; Molybdenum foil bonded to the other end of each of the above, an external lead wire welded to each molybdenum foil, and an electrode assembly including the above components are inserted and accommodated, and an inert gas is filled in the molybdenum foil. An infrared light bulb including a heat-resistant transparent glass tube in which a portion near a foil is melt-sealed, wherein the heating element is configured such that a surface thereof has a carbon component greater than that of the inside. Infrared light bulb and butterflies. 2. A heating device, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 3. An apparatus for drying, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 4. A heating device, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 5. An apparatus for keeping warm, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side face side, or a plurality of locations of the housing. 6. An apparatus for cooking, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 7. A medical device, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 8. An apparatus for roasting, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 9. A ripening device, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of sides of the housing. 10. An apparatus for fermentation, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of locations of the housing. 11. An apparatus for thawing, characterized in that one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side surface side, or a plurality of places of the housing. 12. An apparatus for sterilization, wherein one or more infrared light bulbs according to claim 1 are mounted on an upper side, a lower side, a side side, or a plurality of positions of a housing. 13. An apparatus for firing, wherein at least one of the infrared light bulbs according to claim 1 is mounted on an upper side, a lower side, a side surface side, or a plurality of positions of the housing. 14. The apparatus according to claim 2, wherein a cover made of a transparent or translucent material having heat resistance is provided so as to cover the infrared light bulb. 15. The apparatus according to claim 14, wherein the transparent or translucent material is quartz glass, crystallized glass, or heat-resistant glass. 16. The apparatus according to claim 14, wherein the transparent or translucent material is configured to be detachable. 17. With respect to the direction to be heated, a reflection plate is mounted behind the infrared light bulb, and a cover made of a transparent or translucent flat plate or a deformed plate is mounted on an output surface of a heat ray output from the infrared light bulb. Apparatus according to claims 2 to 16, characterized in that: