JPH0614839A - Cooker - Google Patents

Abstract

PURPOSE:To reduce driving energy, and to facilitate cleaning and inspection by providing a suction port for sucking smoke at the time of cooking in the outer peripheral part of a cooking part, and providing a device for blowing out air to the suction port in the upper part of the cooking part so that the air blowing-out device can be avoided from the upper part of the cooking part. CONSTITUTION:From a suction port 8 provided in the outer peripheral part of a cooking part 3 of a cooker main body 2 attached to a table 1, smoke at the time of cooking is sucked by a suction means 5. From an air exhaust port 21 of an air blowing-out means 7 whose height is variable, provided in the upper part of the cooking part 3, air is blown out as indicated with an arrow and an air curtain is formed, and an ascent and diffusion of smoke are prevented. The sucked smoke passes through a deodorizing path 9 and the smoke is eliminated by a mist catcher 12, and an offensive smell component is oxidized and decomposed by a combustion chamber 11. The air blowing-out means 7 can be avoided from the upper part of the cooking part 3. In such a way, driving energy is curtailed, and an inspection and cleaning are executed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooker for sucking smoke generated from a cooking product during cooking.

[0002]

2. Description of the Related Art Smokeless cookers (roasters) have been popularized by developing the food service industry such as yakiniku as clean and high-grade. In this method, the smoke generated during cooking is sucked into the main body of the cooker by the suction force of the fan, oil drops, oil smoke, etc. are removed and discharged to the outside.

[0003]

In the conventional roaster, a large amount of indoor air is sucked together with the smoke in order to suck the smoke escaping upward. For this reason, the driving energy of the fan becomes large and a large fan is required.

In view of the above, it is an object of the present invention to provide a cooker that efficiently sucks smoke generated during cooking.

[0005]

The problem solving means according to claim 1 of the present invention is, as shown in FIGS. 1 and 2, an intake port 8 formed in an outer peripheral portion of a cooking section 3, and an intake port 8 generated during cooking. Suction means 5 for sucking the smoke that is generated, and air blowing means 7 that blows air from above the cooking section 3 toward the intake port 8.
The air blowing means 7 is provided with a blower source 5 and a blower portion 15 that guides the air from the blower source 5 above the cooking portion. An air outlet 21 whose blowing direction is set so as to blow out air is provided, and the blower unit 15 avoids the air outlet 21 from above the cooking unit 3 and the blowing posture in which the air outlet 21 is located above the cooking unit 3. It can be switched between postures.

According to a second aspect of the present invention, the air blowing means 7 is provided with the air shutoff means 25 for shutting off the air from the air blowing source 5 when the air blowing portion 15 is in the avoiding posture.

The means for solving the problem according to claim 3 is the cooking section 3
The height varying means 22 for varying the height from the air outlet 21 to the air outlet 21 is provided.

[0008]

In the means for solving the problems according to the above-mentioned claim 1, the air blown from the blower source 5 is blown from the air blower portion 15 toward the intake port 8 through the blower portion 15 to form an umbrella-shaped air curtain. . The smoke generated from the cooking unit 3 during cooking cannot be scattered upward by the air curtain and is sucked from the intake port 8. Except during cooking, the blowing unit 15 is set in the avoidance posture to facilitate cleaning of the cooking unit 3 and internal inspection.

In the problem solving means according to the second aspect, when the air blower 15 is in the avoiding posture, the air cut off means 25 cuts off the air sent from the air blower 5 so that the air is not blown to an unnecessary place.

In the means for solving the problem according to the third aspect, the height of the air outlet 21 is changed by the height changing means 22 so that the air curtain from the air outlet 21 does not directly hit the food to be dried. Adjust the curtain height.

[0011]

1 is a block diagram of a cooking device according to an embodiment of the present invention, FIG. 2 is a partially cutaway plan view of the cooking device, FIG. 3 is a perspective view of a heat exchanger, and FIG. 4 is a first blower pipe. And FIG. 5 is a cross-sectional view of the blow-out portion.

As shown in FIGS. 1 and 2, the cooker of this embodiment has a cooker main body 2 installed inside a table 1 and the cooker main body 2.
Disk-shaped rostrut 3 supported on the upper part of the table, an electric heater 4 arranged below the roster 3 for heating a food, and a fan for sucking smoke generated during cooking into the cooker main body 2. 5, a deodorizing device 6 for deodorizing smoke sucked by the fan 5 to obtain clean air, and an air blowing device 7 for blowing air from above the cooking section.

The cooker main body 2 has an intake port 8 formed on the outer peripheral portion of the grate 3, and a ring-shaped intake plate 8a having a plurality of elongated holes is attached to the intake port 8. . In addition, 8b in FIG. 1 is a windshield, which enhances the smoke suction efficiency.

The deodorizing device 6 is a deodorizing passage 9 which is built in the cooker main body 2 and communicates with the intake port 8, a heat exchanger 10 for raising the intake air temperature arranged in the deodorizing passage 9, and a deodorizing device. Road 9
And a combustion chamber 11 for oxidizing and decomposing odorous components contained in the intake air heated in the heat exchanger 10.

In the deodorizing passage 9, a mist catcher 12 is provided between the intake port 8 and the heat exchanger 10 which uses a ceramic filter having a high collecting performance for removing oil droplets and smoke.
Is intervening. The fan 5 is installed at the downstream end of the deodorizing passage 9.

As shown in FIG. 3, the heat exchanger 10 uses two layers of stainless steel plate fins 10a having a high heat transfer coefficient which are orthogonal to each other, and a plurality of these layers are polymerized. The airflow X including the airflow X and the airflow Y after deodorization that has passed through the combustion chamber 11 are configured to intersect at right angles. Then, three heat exchangers 10 are arranged in series in the deodorizing passage 9 and are installed so as to be countercurrent as a whole as shown in FIG. The combustion chamber 11 is provided with an electric heater 13 and a catalyst 14 for heating intake air. The catalyst 1
Reference numeral 4 denotes, for example, alumina as a carrier and platinum or palladium adhered to the surface thereof, which can lower the oxidative decomposition temperature of smoke.

The upper surface of the combustion chamber 11 between the combustion chamber 11 and the grate 3 is heated by the electric heater 13 and used as a radiant heat source for cooking. Therefore, the combustion chamber 1
The upper surface wall of No. 1 is made of a material having good heat dissipation.

The air blowing means 7 uses the fan 5 as a blowing source, and blows clean air from the deodorizing passage 9 blown out by the fan 5 to above the cooking section.
It is equipped with 5.

As shown in FIG. 1, the blower unit 15 has a first blower pipe 16 whose one end communicates with the downstream end of the deodorizing passage 9 and guides air to the lower part of the table 1, and the first blower pipe 16. And a second blower pipe 17 that is rotatably supported at the other end of the first blower pipe 16 and guides the air from the first blower pipe 16 to the upper side of the roster 3.

As shown in FIG. 4, the other end of the first blower pipe 16 is formed in a semi-cylindrical shape, and a circular insertion opening 16a for inserting one end of the second blower pipe 17 is formed on the upper surface thereof. There is.

The second blower tube 17 penetrates the table 1 and is formed into an inverted L shape, and has an air vent at one end thereof for guiding the air from the first blower tube 16 to the second blower tube 17. 1
7a is formed, and the blowing portion 1 for blowing air is provided at the other end.
8 is attached.

As shown in FIG. 5, the blow-out portion 18 is composed of an outer wall 19 whose end is opened like an umbrella and an umbrella-shaped inner wall 20 attached to the inside of the open portion. The outer wall 19 and the inner wall 20 are formed. An annular air outlet 21 is provided between them. In addition, the blowing unit 18 is provided with a height varying unit 22 that varies the height from the rustle 3 to the air outlet 21.

The height varying means 22 is the second blower tube 1
7 has an external thread 23 formed on the outside of the other end and an internal thread 24 formed on the inside of the outer wall 19 and moves up and down by rotating the blow-out portion 18 with respect to the second blower pipe 17. Then, the height from the grate 3 to the air outlet 21 is changed.

As shown in FIG. 2, the second blower pipe 17 is switched between a blowing posture A in which the air outlet 21 is located above the rostrtor 3 and an avoiding posture B in which the air blower 21 is avoided from above the rostrur 3. It is free. This is the first blower pipe 16
At the insertion opening 16a, the one end portion of the second blower pipe 17 can be switched by rotating.

Then, when the second blower tube 17 is in the blowing position,
The air blowout port 21 and the first blower pipe 16 communicate with each other, and the blowing direction of the air blowout port 21 is set so that the air blown out from the air blowing portion 21 forms an umbrella-shaped air curtain toward the intake port 8. ing. Further, when the second blower pipe 17 is in the avoiding posture, the vent 17a faces the pipe wall of the first blower pipe 16 so that one end of the second blower pipe 17 has the first blower pipe 16
It is used as an air blocking means 25 for blocking the air from.

In the above structure, the food to be cooked is placed on the upper surface of the roast 3 and roasted by the electric heater 4. At this time, the smoke rising from the cooking product is sucked together with air from the intake port 8 by the fan 5 and guided to the deodorizing passage 9, and passes through the mist catcher 12 from the upper side to the lower side to remove oil droplets and oil smoke. Then, it reaches the heat exchanger 10 and is heated.

Next, the intake air is introduced into the combustion chamber 11 and heated to the required temperature by the electric heater 13, and the odorous components (aldehydes and the like) are oxidatively decomposed. At this time, the oxidative decomposition temperature is lowered by the catalyst 14.

The intake air, which has been made smokeless and odorless to become clean air, passes through the heat exchanger 10 again. Here, the heat of the combustion exhaust gas burned in the combustion chamber 11 is transferred to the intake air before deodorization to raise the temperature, and the temperature of the combustion apparatus 11 is lowered.

Further, the clean air is guided to the first blower pipe 16 by the fan 5, passes through the second blower pipe 17, and blows out 1
8 is blown out from the air outlet 21. The blown air forms an umbrella-shaped air curtain toward the intake port 8 so as not to escape the smoke that is scattered above the loss port 3 and particularly at the center of the loss port 3 that is far from the intake port 8.

Here, when there are many cooked foods on the roastle 3, for example, when vegetables or the like rise and are placed on the roastle 3, especially the cooked foods placed near the outer periphery of the roastle 3. May hit the air curtain. At this time, since the food is dried, the blowing portion 18 is turned to change the height of the air outlet 21 and the air curtain is adjusted so as not to hit the food.

Except during cooking, the second blower pipe 17 is rotated horizontally to be in the avoidance posture so that cleaning and internal inspection of the roster 3 can be easily performed. Then when cooking again,
Even when the second blower pipe 17 is in the avoiding posture and the fan 5 is driven, the air flow is blocked in the avoiding posture, so that the air blows out from the air outlet 21 and the table 1 is removed. There is no chance that the air will hit the seasoning or the sauce, and will not scatter.

As described above, the air curtain from the air outlet 21 by the air blowing means 7 can prevent the smoke generated from the roster 3 from being scattered upward, and can collect the smoke with a small amount of air suction. The drive energy of the fan 5 can be suppressed, and the fan 5 can be downsized.

Further, since the second blower pipe 17 can be switched to the avoiding posture, the cleaning of the roster 3 and the inspection of the inside of the cooker main body 2 can be easily performed, and the working efficiency is improved. Since the air flow is blocked when the second blower pipe 17 is in the avoiding posture, even if the fan 5 is driven in the avoiding posture, the seasoning or the sag on the table 1 may occur. There is no chance that the air will hit and scatter.

Furthermore, since the height of the air outlet 21 can be changed, the height of the air curtain from the air outlet 21 is adjusted according to the amount and condition of the food on the roster 3 to prepare the food. Can be prevented from hitting the air curtain and drying.

The present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

For example, the blowing portion 18 may be slidably fitted to the other end portion of the second blower pipe 17 as a height adjusting means of the air blowing port 21.

Further, the air blowing source of the air blowing means 7 is used as an intake port 8
Use a fan different from the fan 5 for sucking smoke from the
The air blown out from the air outlet 8a may be blown by another fan.

[0038]

As is apparent from the above description, according to the first aspect of the present invention, the air curtain from the air outlet by the air blowing means prevents the smoke generated from the cooking section from escaping upward, and a small amount. Smoke can be collected efficiently with the air suction of
The driving energy of the suction means can be suppressed. Moreover, since the blower unit can be switched between the blowing posture and the avoiding posture, cleaning of the cooking unit and internal inspection can be easily performed, and work efficiency is improved.

According to the second aspect, since the air flow is blocked when the blower is in the avoiding posture, it is possible to prevent the air from being blown to an unnecessary place.

According to the third aspect, since the height of the air outlet can be changed, the height of the air curtain from the air outlet can be adjusted, and the food on the cooking section hits the air curtain and dries. Can be prevented.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a cooker according to an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view of the cooking device.

FIG. 3 is a perspective view of a heat exchanger.

FIG. 4 is a perspective view showing a fitting portion between the first blower pipe and the second blower pipe.

FIG. 5 is a cross-sectional view of a blowout portion.

[Explanation of symbols]

 3 Cooking Section 5 Fan 7 Air Blowing Means 8 Air Intake Port 15 Blower 21 Air Blow Out 22 Height Changing Means 25 Air Blocking Means

Claims (3)

[Claims] 1. An intake port formed in the outer peripheral portion of the cooking section,
Suction means for sucking smoke generated at the time of cooking from the air inlet, and air blowing means for blowing air from above the cooking section toward the air inlet are provided, and the air blowing means is
A blower source and a blower unit that guides air from the blower source above the cooking unit are provided, and the blower unit is provided with an air blowout port whose blowing direction is set so as to blow air toward the intake port. The cooking device is characterized in that the blower unit is switchable between a blowing posture in which an air outlet is located above the cooking unit and an avoiding posture in which the air blowing port is avoided from above the cooking unit. 2. The cooker according to claim 1, wherein the air blowing means is provided with an air shutoff means for shutting off air from the air blowing source when the air blowing portion is in the avoiding posture. 3. The cooker according to claim 1, further comprising height varying means for varying the height from the cooking section to the air outlet.