JPH033856Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is a far-infrared radiator for cooking, which can be used for a wide range of cooking purposes, especially for commercial food processing and home cooking. Regarding.

"Prior Art" Conventionally, as shown in FIG. 4, a cooking method using far-infrared radiation involves placing a plate-shaped far-infrared radiator 12 at the bottom of a cooking tank 1 of a cooking device. The cooking oil 3 stored in the tank 1 was heated by conduction heat through the cooking tank 1 and the far-infrared radiator 12 of the gas burner 4 on the lower side of the cooking tank 1. As a result, the cooking oil 3 that has stored heat convects and is transferred to the food 5 soaked in the cooking oil 3, and the far-infrared radiator 12 is heated by the heat conducted from the gas burner 4 through the cooking tank 1. The food 5 to be cooked is heated by the emitted far infrared rays.

However, in such a conventional cooking method, as the cooking progresses, fine particles are separated from the food 5 and are deposited on the bottom of the cooking tank 1 and the far-infrared radiator 12.
and forms a gap with low thermal conductivity.
Thermal conductivity from the bottom of the cooking tank 1 to the far-infrared radiator 12 decreases, the amount of far-infrared radiation decreases, and the amount of far-infrared rays deposited on the far-infrared radiator 12 placed on the bottom of the cooking tank 1 decreases. There is a problem in that it obstructs the emission of far infrared rays.

In addition, when a metal product is interposed between the far-infrared radiator 12 and the food to be cooked, for example, a wire mesh for separating cooking scraps that accumulate at the bottom of the cooking tank 1 from the food to be cooked, or a When a conveyor belt 6 or the like for conveying food in a fryer or the like is interposed between the far-infrared radiator 12 and the food 5, a portion of the far-infrared rays radiated from the far-infrared radiator 12 is transmitted to the metal product. A problem arises in that the radiation effect of the far-infrared radiator 12 is significantly reduced.

In addition, when trying to utilize the effect of far infrared rays in cooking utensils such as home rice cookers, it is necessary to form a far infrared rays emitting film inside the rice cooker, etc. To get rid of burnt spots,
If the burned areas were rubbed, the far-infrared ray emitting film would peel off.

[Means for solving the problem] This invention was made in consideration of the above-mentioned problems, and is designed to prevent the amount of far-infrared rays from decreasing as cooking progresses. Moreover, the radiant effect of the far-infrared radiator will not be reduced by metal products that are structurally interposed between the bottom of the cooking tank and the food, such as the conveyor belt of the mesh conveyor, and will not damage the pots or pots. The object of the present invention is to provide a far-infrared radiator that can be used for cooking without any problems.

In order to achieve the above object, this invention is characterized in that the surface of a floating body having a specific gravity equal to or lower than that of the cooking liquid stored in the cooking tank is coated with a far-infrared ray emitting film.

The floating body may be made of a heat-resistant material such as stainless steel or heat-resistant synthetic resin. Its shape can be freely selected, such as a spherical shell or a disc.

The far-infrared emitting film may be made of a known material (for example, the emitting film formed on the surface of the far-infrared radiator sold under the trademark Influx), and in particular, it can be applied as a paint to the surface of the floating body. It is better to do it like this.

"Effect" The cooking liquid may be water (hot water) or oil.

Even if cooking residue accumulates at the bottom of the cooking tank as cooking progresses, the cooking liquid in the cooking tank is heated through the peripheral wall of the cooking tank. Therefore, the floating object floats in or on the surface of the cooking liquid without being surrounded by cooking waste, receives heat from a heating device such as a gas burner through the cooking liquid, and emits far infrared rays from the far infrared ray emitting film on its surface. , the amount of far-infrared radiation does not decrease as cooking progresses. In addition, floating bodies float in the cooking liquid or on the liquid surface, so
There is no metal product intervening between this and the food, such as a conveyor belt of a mesh conveyor, which is structurally interposed between the bottom of the cooking tank and the food, and these metal parts can be used as far-infrared radiators. The radiation effect is not hindered.

"Embodiment" An embodiment of this invention will be described below with reference to FIGS. 1 and 2.

Figure 1A shows a far-infrared radiation film 2a on the surface of a hollow spherical floating body 2b such as stainless steel or heat-resistant synthetic resin.
The far-infrared radiator 2 has a specific gravity smaller than that of the cooking liquid stored in the cooking tank, so that it floats on the cooking liquid 3, which will be explained later. Become. Also, figure B
The floating body 2 is formed by forming a part with a higher specific gravity than other parts, for example, a solid part 2c, in a part of the hollow sphere, and giving the part with a higher specific gravity the function of a "weight".
b, and a part of the surface of the solid portion side of the floating body 2b is coated with a far-infrared emitting film 2a. When the far-infrared radiator 2 is configured in this way, when the far-infrared radiator is floated in the cooking liquid 3, as will be explained later, the far-infrared ray-emitting film side always faces the inside of the cooking tank. It can efficiently emit far-infrared radiation, and C in the same figure shows a hollow disk-shaped floating body 2
A far-infrared radiation film 2a is formed on the surface of b. According to this configuration, the far-infrared radiation surface can be widened. The above floating body has a diameter of 5
A suitable size is from about mm to about 2 to 3 cm.

FIG. 2 is a longitudinal cross-sectional view of a fryer in which a spherical far-infrared radiator 2 according to this invention is suspended. is stored. Also,
This fryer is provided with a gas burner 4 disposed below the cooking tank 1 and a mesh belt conveyor 6 (only the conveyor belt is shown) for transporting food 5 into and out of the cooking tank 1.

The above-mentioned edible oil 3 contains a required number of the above-mentioned far-infrared radiators 2 having a specific gravity equal to or lower than this. The size, shape, and number of the far-infrared radiators 2 can be arbitrarily selected, but it is sufficient that all the far-infrared radiators 2 are arranged in a plane so that they can almost cover the surface of the cooking liquid 3.

In such a fryer, the food 5 in the cooking tank 1 is heated by the gas burner 4 via the cooking tank 1 and the cooking oil 3, and is heated by the far infrared rays radiated from the far infrared radiator 2. heated. That is, the heat from the gas burner 4 is conducted to the cooking oil 3 from the bottom and circumferential surface of the cooking tank 1 and is stored in the cooking oil 3. Due to the heat storage in the cooking oil 3 and the convection of the cooking oil 3, the heat from the gas burner 4 is transferred to the food 5 using the cooking oil 3 as a medium. Since the far-infrared radiator 2 has a specific gravity equal to or lower than that of the cooking oil 3, it does not sink to the bottom of the cooking tank 1 but floats in the cooking oil 3 or on its liquid surface. Therefore, even if cooking waste accumulates at the bottom of the cooking tank 1 and heat transfer from this bottom to the cooking oil 3 decreases,
The far-infrared radiator 2 emits far-infrared rays due to the heat transferred to the cooking oil 3 through the peripheral wall of the cooking tank 1. Since the far-infrared radiator 2 floats in the upper layer of the cooking oil 3, where the oil temperature is particularly high, there is no risk that cooking debris that accumulates at the bottom of the cooking tank 1 will accumulate on the far-infrared radiator 2. The far-infrared radiation effect does not deteriorate.

Furthermore, since the far-infrared radiator 2 is placed on the side opposite to the conveyor belt of the mesh belt conveyor 6 with respect to the food 5, the far-infrared radiator 2
The far infrared rays radiated from the container are directly radiated to the food 5 without being obstructed by the conveyor belt. Furthermore, a part of the far infrared rays that are not directly radiated to the food 5 and reach the conveyor belt of the mesh belt conveyor 6 are reflected by the conveyor belt and reach the lower side of the food 5, resulting in heating by the far infrared rays. This is done on both the upper and lower sides of the food 5. As a result of the above, the cooking time for the food 5 can be significantly shortened.

Moreover, since the far-infrared radiator 2 does not cover the liquid surface of the cooking oil 3 in a single plate shape, the food 5 is not covered with the cooking oil 3.
Easy to put in and take out.

In yet another embodiment of this invention, shown in FIG.
The specific gravity of the far-infrared radiator 2 is made almost the same as the specific gravity of the edible oil 3 at the cooking temperature, and the far-infrared radiator 2 is caused to flow in the lower tank part of the cooking tank 1 by riding on the convection of the edible oil 3. The far-infrared radiator 2, which has a lighter specific gravity than the aforementioned edible oil, is floated on the edible oil.

In this case, it is advantageous for the conveyor belt of the mesh belt conveyor 6 to be made of synthetic resin.

By configuring the far-infrared radiator 2 to flow with the convection of the cooking oil 3 in this way, there is no risk of cooking debris covering and accumulating on the surface of the far-infrared radiator 2. There is no fear that the infrared radiation effect will be inhibited. Furthermore, in the example shown in FIG. The effect of far-infrared rays, which makes cooking quick and delicious, can be further enhanced. In the embodiment shown in FIG. 3, the disk-shaped floating body 2b shown in FIG. 1c was used.

Although the above description has been made using a commercial fryer as an example, the far-infrared radiator 2 according to this invention can of course also be used for cooking at home. For example, when cooking rice in an electric rice cooker, it is preferable to float the far-infrared radiator 2 shown in FIG. 1A on top of water in the rice cooker. Furthermore, when cooking or frying food, it is preferable to suspend one or more of the far-infrared radiators 2 shown in FIG. 1 in water or oil in a pot.

``Effects of the invention'' As described above, this invention is based on a method that emits far-infrared rays on the top surface of the cooking liquid stored in the cooking tank or in the cooking liquid, which has a specific gravity equal to or lower than this, and whose surface is coated with a far-infrared ray-emitting film. When the body is suspended, far-infrared emitters float in or on the surface of the cooking liquid,
Since heat is transferred to the cooking liquid through the bottom and circumferential surface of the cooking tank, there is no problem of reduction in thermal efficiency due to accumulation of cooking residue on the far-infrared radiator.
In addition, the far infrared rays from the far infrared radiator are radiated directly to the food to be cooked, and the conveyor belt of the mesh belt conveyor interposed between the bottom of the cooking tank and the food to be cooked, the food to be cooked and the cooking scum that has settled at the bottom of the cooking tank. It is possible to eliminate the reduction in thermal efficiency due to reflection of far infrared rays by metal products such as wire mesh used to separate the two. Therefore, the overall thermal efficiency can be significantly improved, energy can be saved, and cooking time can be significantly shortened.

In addition, the "heating cooker" referred to in this specification includes:
Examples include various fryers, steamers, etc. used for manufacturing chikuwa, kamaboko, fried tofu, etc.

[Brief explanation of drawings]

Figure 1 is a perspective view showing an embodiment of this invention;
The figure is a sectional view showing an example of application of this invention, FIG. 3 is a sectional view showing another example of application of this invention, and FIG. 4 is a longitudinal sectional view of a conventional example. 1...Cooking tank, 2...Floating pieces, 2a...Far-infrared radiation film, 3...Cooking liquid.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The surface of the floating body is coated with a far-infrared emitting film so that the specific gravity of the floating body is equal to or less than the specific gravity of the cooking liquid stored in the cooking tank. A far-infrared radiator for cooking that is characterized by: (2) Utility model registration claim No. 1 in which a part of the floating body is provided with a weight portion having a higher specific gravity than other parts
A far-infrared radiator for cooking described in .