JP2020130188A - Heat cooking device - Google Patents

Abstract

To properly lead heat, oil smoke and the like generated from a heat cooker to be a heat source such as a flyer installed below a microwave oven to a ventilating fan installed above the microwave oven.SOLUTION: A microwave oven (1) for heating an object to be heated (30) put in a heating chamber (12) with a high-frequency wave is provided with an exhaust duct (15) for discharging exhaust air upward from a lower side of a device body.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cooking apparatus for cooking an object to be heated by high frequency.

Generally, when cooking fried foods, the food is fried using a fryer. In this case, it takes a long time for the inside of the food to be fried to be warmed to an appropriate temperature and the surface of the food to be in an appropriate state.

Therefore, it is conceivable to shorten the time until the fried food is finished by heating the inside of the food with a microwave oven (for example, an automatic high-frequency heating device disclosed in Patent Document 1) before frying the food with a fryer.

Japanese Unexamined Patent Publication No. 61-265428

By the way, when the fryer and the microwave oven are used together, the following problems occur. Since the fryer and the microwave are usually placed in different positions, the cook has to take the cooked food out of the microwave and transport it to the fryer, which poses a problem for the operator. ..

Therefore, it is conceivable to place a flyer near the microwave oven. In particular, when considering the installation area, it is preferable to arrange the fryer under the microwave oven.

However, normally, oil smoke and heat from the fryer are discharged to the outside by a ventilation fan, but since a microwave oven is installed on the fryer, the oil smoke and heat are blocked by this microwave oven, and oil smoke and heat are indoors. The problem of muffledness arises.

One aspect of the present invention is cooking that can appropriately guide heat, oil smoke, etc. generated from a heating cooker that is a heat source such as a fryer installed under a microwave oven to a ventilation fan installed above the microwave oven. The purpose is to realize the device.

In order to solve the above problems, the cooking apparatus according to one aspect of the present invention is a cooking apparatus in which an object to be heated is placed in a heating chamber and heated by a high frequency, and is exhausted from the lower side to the upper side of the apparatus main body. It is characterized in that an exhaust duct is provided.

According to one aspect of the present invention, heat, oil smoke, etc. generated from a cooking device that is a heat source such as a fryer installed under a microwave oven can be appropriately guided to a ventilation fan installed on the microwave oven. ..

It is a schematic block diagram of the cooking apparatus which concerns on Embodiment 1 of this invention. It is a figure for demonstrating the exhaust function of the cooking apparatus shown in FIG. It is a schematic block diagram which shows the example which provided the entry prevention mechanism in the cooking apparatus shown in FIG. It is a schematic block diagram of the cooking apparatus which concerns on modification 1. FIG. It is a schematic block diagram of the cooking apparatus which concerns on Embodiment 2 of this invention. It is a schematic block diagram of the cooking apparatus which concerns on modification 2. FIG.

[Embodiment 1]
Hereinafter, one embodiment of the present invention will be described in detail. In this embodiment, an example will be described in which a microwave oven is used as a cooking device, a fryer is arranged below the microwave oven, and a ventilation fan is arranged above the microwave oven.

(Outline of microwave oven)
FIG. 1 is a schematic cross-sectional view of the microwave oven 1 according to the present embodiment.

As shown in FIG. 1, the microwave oven 1 includes a high-frequency heating device 11. The high-frequency heating device 11 irradiates the object to be heated 30 in the heating chamber 12 with a high frequency by the waveguides 11c and 11d to heat it.

On the front side of the microwave oven 1, a louver portion 13 of a ventilation port for taking in cooling air and a front door 14 for opening and closing the front opening 12a of the heating chamber 12 are provided. On the other hand, on the back side of the microwave oven 1, an exhaust duct 15 that takes in heat, oil smoke, etc. from below the microwave oven 1 from the lower intake port 15a and discharges it from the upper exhaust port 15b, and a lower part of the exhaust duct 15 In order to make (near the intake port 15a) a negative pressure, a blower fan 16 that blows air upward in the exhaust duct 15 is provided. That is, the microwave oven 1 is provided with a configuration for exhausting air from the lower side of the main body of the apparatus to the upper side.

As described above, a front opening 12a is formed on the front surface of the heating chamber 12, and the object to be heated 30 is put into the front opening 12a. As a result, the object to be heated 30 placed in the heating chamber 12 is heated by the high-frequency heating device 11. The heated object 30 is usually taken out from the front opening 12a of the heating chamber 12 by opening the front door 14. In the microwave oven 1 according to the present embodiment, an opening, that is, a back opening 12b is also formed on the back surface of the heating chamber 12, and the heated object 30 can be taken out from the back opening 12b. ..

Since the back opening 12b may leak high frequencies if it is always open and the heating efficiency is poor, a back door 21 for opening and closing the back opening 12b is provided.

A fryer 101 is arranged below the microwave oven 1 of the present embodiment. The fryer 101 is a type in which food is put in and fried from the fried food tray 101a on the upper surface. Therefore, in the bottom surface 10a of the housing 10 of the microwave oven 1, the opening 10b for putting the heated object 30 discharged from the back opening 12b of the heating chamber 12 into the fried food tray 101a of the fryer 101. Is formed. The back door 21 is used as a means for guiding the heated object 30 in the heating chamber 12 to the fried food tray 101a of the fryer 101.

The back door 21 is provided so as to be movable in the directions of arrows XY. That is, the back door 21 moves in the X direction and comes into close contact with the opening surface of the back opening 12b of the heating chamber 12 to close the back opening 12b, and moves in the Y direction to move the back opening 12b. The back opening 12b is opened by moving away from the opening surface of.

The back door 21 is connected to a guide rail 22 housed in the heating chamber 12. A scraper 23 is provided at the tip of the guide rail 22. As a result, the scraper 23 also moves in the direction of the arrow Y by moving from the state where the back door 21 closes the back opening 12b in the direction of the arrow Y, and the object to be heated 30 in the heating chamber 12 is moved in the back opening 12b. It is moved to the side, and finally, the object to be heated 30 is discharged from the back opening 12b to the outside of the heating chamber 12. That is, the scraper 23 functions as a discharge mechanism for discharging the heated object 30 of the heating chamber 12 from the back opening 12b in conjunction with the opening operation of the back door 21. By providing the scraper 23 in this way, the heated object 30 to be heated can be discharged from the back opening 12b of the heating chamber 12 simply by opening the back door 21. If there are a plurality of objects to be heated 30 in the heating chamber 12, the scraper 23 moves in the direction of the arrow Y, so that the objects to be heated 30 are sequentially discharged from the back opening 12b.

Below the back door 21 that closes the back opening 12b of the heating chamber 12, the object 30 discharged from the back opening 12b of the heating chamber 12 is opened in the bottom surface 10a of the housing 10. A food guide 24 for guiding the fryer 101 to the fried food tray 101a is provided via the portion 10b. The food guide 24 is made of a ship-shaped heat-resistant member having a substantially trapezoidal cross section, and is adapted to receive the object to be heated 30 discharged from the back opening 12b at one end and guide the food guide 24 to the opening 10b. The food guide 24 may have any shape as long as it appropriately guides the object to be heated 30 discharged from the back opening 12b to the opening 10b.

(Exhaust function)
FIG. 2 is a diagram for explaining the exhaust mechanism of the microwave oven 1.

As shown in FIG. 1, the microwave oven 1 realizes an exhaust mechanism that takes in and exhausts the air outside the microwave oven 1 by means of an exhaust duct 15 and a blower fan 16.

As a result, as shown in FIG. 2, even if the fryer 101 is arranged below the microwave oven 1, if the ventilation fan 201 is arranged above the microwave oven 1, oil smoke and heat from the fryer 101 will be emitted from the microwave oven 1. It is sucked from below the exhaust duct 15 constituting the exhaust mechanism inside, discharged from above the exhaust duct 15, and sucked by the ventilation fan 201.

In the microwave oven 1, the exhaust duct 15 and the blower fan 16 discharge oil smoke and heat from the fryer 101 to the upper ventilation fan 201, but the heated object 30 in the microwave oven 1 is discharged to the fryer 101. Oil smoke or heat may enter through the opening 10b for exhausting.

An example of preventing the ingress of oil smoke and heat from the opening 10b of the microwave oven 1 will be described below.

(Intrusion prevention mechanism)
FIG. 3 is a schematic configuration sectional view showing an example provided with the microwave oven 1 entry prevention mechanism shown in FIG. In the microwave oven 1 shown in FIG. 3, the two magnetrons (high frequency generators) 11a and 11b shown in FIG. 1 are on the front door 14 side, and the inverters 17a and 17b connected to the respective magnetrons 11a and 11b are on the back surface. It is arranged on the door 21 side, and further, the cooling air is blown to the front door 14 side with respect to the cooling fan 18a, the magnetron 11b and the inverter 17b which blow the cooling air toward the front door 14 side to the magnetron 11a and the inverter 17a. A cooling fan 18b to be blown toward is additionally displayed.

As described above, each member constituting the high-frequency heating device 11 in the microwave oven 1 needs to be cooled. Therefore, it is a problem that oil smoke or heat from the fryer 101 arranged below the microwave oven 1 invades the inside of the microwave oven 1.

Therefore, in the microwave oven 1 of the present embodiment, as shown in FIG. 3, the opening / closing mechanism for opening / closing the opening 10b in the vicinity of the opening 10b for dropping the object to be heated 30 onto the fryer 101 is the same. A blower fan 31 that blows wind toward the opening 10b is provided. When the blower fan 31 blows wind in parallel with the upper surface of the opening 10b, a curtain by air, a so-called air curtain, is formed on the upper surface of the opening 10b, so that oil smoke from the fryer 101 is formed. And heat do not enter the microwave oven 1 through the opening 10b. That is, in order to prevent the ingress of oil smoke and heat from the opening 10b, it is necessary to keep the blower fan 31 running even after the cooking of the microwave oven 1 is completed. In order to prevent the ingress of oil smoke and heat, the air volume of the blower fan 31 is increased so that the object to be heated 30 can be introduced into the fryer 101 through the opening 10b even while the air curtain is being used. It has been adjusted.

(effect)
According to the microwave oven 1 having the above configuration, since the exhaust duct 15 for exhausting from the lower side of the apparatus main body to the upper side is provided, heat, oil smoke, etc. from the lower side of the microwave oven 1 are exhausted upward by the exhaust duct 15. can do. As a result, the microwave oven 1 can be installed on the fryer 101, which is a source of heat, oil smoke, and the like.

Further, since the blower fan 16 that blows the wind upward in the exhaust duct 15 is provided, the space below the exhaust duct 15 (near the intake port 15a) can be made a negative pressure, so that heat and heat can be generated. Oil smoke and the like can be easily taken into the exhaust duct 15 and easily discharged. As a result, as shown in FIG. 2, the oil smoke and heat generated by the fryer 101 arranged below the microwave oven 1 are efficiently directed to the ventilation fan 201 with respect to the ventilation fan 201 provided above the microwave oven 1. Can be discharged.

Moreover, the oil smoke and heat generated in the fryer 101 are not likely to enter the inside of the microwave oven 1 by the air curtain generated by blowing air into the opening 10b of the microwave oven 1.

By the way, when the air curtain is used, it is necessary to constantly drive the blower fan 31 while the fryer 101 is in operation, which increases power consumption. Further, if the air volume of the blower fan 31 is weakened, oil smoke or heat may enter through the opening 10b. Therefore, as an alternative to the air curtain, there is a mechanical shutter mechanism. The shutter mechanism will be described with reference to the following modification 1.

[Modification 1]
As a modification of the microwave oven 1 according to the first embodiment, there is the microwave oven 2 shown in FIG. That is, as shown in FIG. 4, the microwave oven 2 includes a shutter mechanism 32 that mechanically opens and closes the opening 10b as an opening / closing mechanism of the opening 10b. The shutter mechanism 32 includes a plate-shaped shutter 32a having a size capable of completely closing the opening 10b, and a drive unit (dedicated motor) for driving the shutter 32a. The shutter 32a is made of a heat-resistant material.

In this case, the shutter mechanism 32 only needs to drive the shutter 32a when opening and closing the opening 10b, which saves power. Moreover, since the opening 10b can be completely closed by the shutter 32a, the ingress of oil smoke and heat from the fryer 101 can be completely prevented.

The above-mentioned air curtain and shutter mechanism may be used in combination as a means for closing the opening 10b.

According to the microwave oven 1 having the above configuration, even if the oil smoke and heat from the fryer 101 can be prevented from entering the microwave oven 1, the oil smoke and heat itself are not eliminated. Therefore, the fryer 101 and the microwave oven 1 are used. It must be exhausted from the room where it is installed. For this purpose, the microwave oven 1 and the microwave oven 2 shown in FIGS. 3 and 4 are provided with an exhaust duct 15 and a blower fan 16 as an exhaust mechanism. In the following embodiment, an example of further improving the exhaust performance by the exhaust duct 15 will be described.

[Embodiment 2]
Other embodiments of the present invention will be described below. For convenience of explanation, the same reference numerals will be added to the members having the same functions as the members described in the above embodiment, and the description will not be repeated.

(Outline of microwave oven)
FIG. 5 is a schematic cross-sectional view of the microwave oven 3 according to the present embodiment.

As shown in FIG. 5, the microwave oven 3 differs from the microwave oven 1 of the first embodiment in the member arrangement of each component. That is, the two magnetrons 11a and 11b are arranged on the rear door 21 side, and the inverters 17a and 17b connected to the respective magnetrons 11a and 11b are arranged on the front door 14 side. Further, cooling air is provided to the magnetron 11a and the inverter 17a. The cooling fan 18a, the magnetron 11b, and the inverter 17b that blow the cooling air toward the back door 21 side are provided with the cooling fan 18b that blows the cooling air toward the back door 21 side. As described above, in the microwave oven 3, since the magnetrons 11a and 11b are arranged at positions far from the heating chamber 12, the waveguides 11c and 11d for guiding the high frequency to the heating chamber 12 are extended.

The microwave oven 3 is different from the microwave oven 1 of the first embodiment in that the air blown by the cooling fans 18a and 18b is guided to the exhaust duct 15. That is, in the microwave oven 3, it is not necessary to separately provide the blower fan 16 provided in the microwave oven 1. This has the effect of making the device body smaller.

(Exhaust mechanism)
As shown in FIG. 5, the exhaust duct 15 is provided with a blower guide 41 for guiding the air blown by the cooling fans 18a and 18b upward in the exhaust duct 15 instead of the blower fan 16. ..

The blower guide 41 is formed in the opening 15c formed on the side surface of the exhaust duct 15, and has a plurality of fins 41a in the vertical direction. The fins 41a are inclined upward along the flow of the wind in the exhaust duct 15 so as to blow out the introduced wind toward the upper side of the exhaust duct 15.

In this way, the air from the cooling fans 18a and 18b is guided by the air blower guide so that the air blows upward to the exhaust duct 15 by the air blower guide 41. Therefore, on the intake port 15a side below the exhaust duct 15 Negative pressure is generated, and oil smoke and heat are easily taken in from the intake port 15a. Oil smoke and heat taken in from the intake port 15a are discharged from the exhaust port 15b above the exhaust duct 15. As a result, oil smoke and heat from the fryer 101 can be efficiently discharged from the exhaust duct 15.

In the present embodiment, an example in which the blower guide 41 for introducing the wind into the exhaust duct 15 is used has been described, but the present invention is not limited to this, and the intake port 15a side of the exhaust duct 15 is set to a negative pressure. Anything that can be done will do.

[Modification 2]
FIG. 6 shows a schematic cross section of a microwave oven 4 using two blower guides 51 instead of the blower guide 41 shown in FIG.

The blower guide 51 is formed in the openings 15c and 15c formed on the side surface of the exhaust duct 15, respectively, and has an introduction port 51a for blowing out the air blown out by the cooling fans 18a and 18b and an exhaust port 51b for discharging the introduced air. The inner diameter of the discharge port 51b is smaller than the inner diameter of the introduction port 51a. Moreover, the introduction port 51a is formed so as to face the cooling fan 18a / 18b side so that the wind can be easily taken in, and the exhaust port 51b is formed so as to face the exhaust port 15b side of the exhaust duct 15. That is, in the blower guide 51, the wind discharge port 51b is smaller than the wind introduction port 51a, and the exhaust port 51b is formed upward in the exhaust duct 15.

As a result, in the blower guide 51, the air introduced from the introduction port 51a is discharged from the discharge port 51b smaller than the inner diameter of the introduction port 51a, so that the flow velocity of the air blown from the blower guide 51 is the wind before the introduction. It is faster than the flow velocity of.

Therefore, since the two blower guides 51 generate an upward air flow in the exhaust duct 15, negative pressure is generated on the intake port 15a side of the exhaust duct 15, and oil smoke and heat can be easily taken in from the intake port 15a. .. The oil smoke and heat taken in from the intake port 15a are discharged from the exhaust port 15b above the exhaust duct 15. As a result, oil smoke and heat from the fryer 101 can be efficiently discharged from the exhaust duct 15.

In the first and second embodiments, the example in which the fryer 101 is installed below the microwave ovens 1 to 4 has been described, but the present invention is not limited to the fryer 101, and other cooking cookers such as gas stoves and heat sources can be used. There may be.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1-4 Microwave oven (cooking device)
10 Housing 10a Bottom 10b Opening 11 High-frequency heating device 11a / 11b Magnetron 11c / 11d Wavebox 12 Heating cabinet 12a Front opening 12b Back opening 13 Louver 14 Front door 15 Exhaust duct 15a Intake port 15b Outlet 15c Opening Part 16 Blower fan 17a / 17b Inverter 18a / 18b Cooling fan 21 Rear door 22 Guide rail 23 Scraper 24 Food guide 30 Heated object 31 Blower fan 32 Shutter mechanism 32a Shutter 41 Blower guide 41a Fin 51 Blower guide 51a Inlet 51b Outlet 101 Fryer 101a Frying tray 201 Ventilation fan

Claims (6)

A cooking device that puts an object to be heated in a heating chamber and heats it with high frequency.
A cooking device characterized in that an exhaust duct for exhausting air from the bottom to the top of the device body is provided. The cooking apparatus according to claim 1, wherein a blower fan for blowing wind upward in the exhaust duct is provided. The blower fan is a cooling fan that blows cooling air to a high frequency generator that generates high frequencies in the main body of the device.
The cooking apparatus according to claim 2, wherein a blower guide for introducing cooling air from the cooling fan toward the upper side in the exhaust duct is provided. The cooking apparatus according to claim 3, wherein the blower guide comprises a plurality of fins inclined upward along the flow of air in the exhaust duct. The cooking apparatus according to claim 3, wherein the blower guide has a smaller wind discharge port than the wind introduction port, and the exhaust port is formed upward in the exhaust duct. An opening is formed in the main body of the apparatus for dropping the object to be heated in the heating chamber downward.
The cooking apparatus according to any one of claims 1 to 5, wherein an opening / closing mechanism for opening / closing the opening is provided in the opening.

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