KR101851866B1 - Multi-functional oven - Google Patents

Abstract

The present invention relates to a composite oven having a heater and a magnetron. The composite oven according to the present invention comprises a main body capable of accommodating food, a first heater installed in the main body for heating the food by emitting radiant energy, A second heater installed in the main body to emit radiant energy of longer wavelength than the first heater to heat the food, and a magnetron installed in the main body to emit microwaves.

Description

[0001] MULTI-FUNCTIONAL OVEN [0002]

The present invention relates to a composite oven, and more particularly, to a composite oven having a heater and a magnetron.

Electric grills and microwave ovens are mainly used as electric cooking appliances for heating foods.

Generally, the electric grill uses the heat generated by the electric resistance to heat the food. Such an electric grill has a wide selection of objects to be cooked, and has a high texture and flavor. However, it takes a long time to get to the inside of the food evenly.

On the other hand, the microwave oven emits a microwave to heat the food by causing water molecules in the food to generate heat. Unlike an electric grill, such a microwave oven has the advantage that it can heat evenly to the inside of a food in a short time. However, as the water contained therein evaporates together, the food may become too dry or the texture may deteriorate.

Accordingly, a composite oven integrating the functions of an electric grill and a microwave oven is proposed. Such a composite oven is disclosed, for example, in Japanese Patent Application Laid-Open No. 10-2015-0035619.

KR 10-2015-0035619 A

The object of the present invention is to provide a composite oven suitable for the material characteristics of each food or for each individual user's taste.

Another object of the present invention is to provide a composite oven in which a user can easily check the state of food being cooked inside the body.

A composite oven according to the present invention includes a main body capable of accommodating food, a first heater installed in the main body to emit radiant energy to heat food, a radiator installed in the main body, A second heater for heating the food by discharging the microwaves, and a magnetron provided in the body for discharging the microwaves.

The first heater and the second heater may be any one of a halogen heater, a transparent quartz heater, an opaque quartz heater, a carbon heater, a ceramic heater, and a sieve heater.

Meanwhile, the user may further include a window for viewing the inside of the main body, and the first heater may be disposed closer to the window than the second heater.

The control unit may further include an operation unit for selecting a cooking object, and a control unit for controlling an operating specific gravity of the first heater, the second heater, and the magnetron according to the selected cooking object.

At this time, the operating portion is configured to be able to select meat and its thickness as a cooking object, and when the meat is selected, the control portion can control the magnetron to operate at a low operating specific gravity as the thickness thereof is thinner.

The control unit may be configured to select fish as a cooking object, and the control unit may control the magnetron to operate at a lower specific gravity than the first heater and the second heater when fish is selected.

The control unit may control the magnetron to operate at an operating specific gravity of 25% or less.

The control unit may be configured to select grains, pulses, or documents as objects to be cooked. When the grains, pulses, or documents are selected, the control unit may have an operating specific gravity of 10 to 50 %, ≪ / RTI >

In addition, when the document is selected, the control unit may control the magnetron, the first heater, and the second heater to operate at a high operating specific gravity in this order.

The control unit may be configured to select a toast flow as a cooking object, and the control unit may control the first heater to operate at a higher operating specific gravity than the second heater when the toast flow is selected.

The control unit may be configured to select a cookie or a cake as a cooking object, and the control unit may control the second heater to operate at a higher specific gravity than the first heater when a cookie or a cake is selected.

The composite oven according to the present invention has a plurality of heaters and magnetrons that emit radiant energy of different wavelengths and a plurality of heaters and magnetrons operate at different operating specific weights depending on the object to be cooked, .

Further, the user can more easily see the inside of the main body by disposing the heater which emits a short wavelength energy to perform more effectively the role as the illumination, closer to the window.

1 is a configuration diagram of a composite oven according to an embodiment of the present invention.
2 is a graph showing the wavelength of energy emitted according to the type of heater.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a composite oven according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a configuration diagram of a composite oven 100 according to an embodiment of the present invention.

1, the composite oven 100 includes a main body 110, a door 120, a first heater 130, a second heater 140, a magnetron 150, an operating portion 160, and a display portion 170 .

The main body 110 is a space for accommodating and cooking food. Although the main body 110 is shown in FIG. 1 as having a hexahedron with its front surface opened (when the used state is a reference), the main body 110 may have a different shape as long as the food can be received and cooked therein.

The door 120 is rotatably coupled to the main body 110 so as to close the open front face of the main body 110. A window 121 may be formed on the door 120 so that the user can easily check the state of the food being cooked inside the main body 110. 1, the window 121 may be formed on one side of the main body 110, not on the door 120, for example, on the upper side (when using the used state). Hereinafter, for convenience, the window 121 is formed on the door 120 as shown in FIG. 1.

The first heater 130 and the second heater 140 are installed inside the main body 110. Here, the first heater 130 and the second heater 140 serve to heat the food by utilizing the heat generated by the electrical resistance. For example, the first heater 130 and the second heater 140 may be halogen heaters, transparent quartz heaters, opaque quartz heaters, carbon heaters, ceramic heaters, sheath heaters, and the like. However, since the heaters listed here are merely illustrative, the first heater 130 and the second heater 140 may be different kinds of heaters.

Meanwhile, the first heater 130 and the second heater 140 emit energy of different wavelengths. That is, the first heater 130 may emit energy of a shorter wavelength than the second heater 140. Of course, the first heater 130 may emit energy longer than the second heater 140. In the following description, it is assumed that the first heater 130 emits energy of a shorter wavelength than the second heater 140. 2, the second heater 140 may be a carbon heater, a ceramic heater, or a sheath heater, if the first heater 130 is an opaque quartz heater. In this case, . ≪ / RTI >

When the food is cooked using the first heater 130 and the second heater 140 that emit energy of different wavelengths, there is an advantage in that the outer surface and the inner portion of the food can be appropriately cooked together. In general, the wavelength of the energy and the depth of penetration from the surface of the object have the relationship of the following equation (1).

(delta: penetration depth, f: frequency, sigma: conductivity, mu: permeability)

In other words, the higher the frequency of energy, that is, the shorter the wavelength, the shorter the depth of penetration from the surface of the object. Accordingly, the energy of the relatively short wavelength emitted by the first heater 130 can not penetrate deeply into the food, and is concentrated on the surface of the food. Therefore, if the food is heated using the first heater 130, the surface of the food can be cooked in a crisp and crispy manner, so that the texture and flavor thereof can be enhanced.

While the energy of the relatively long wavelength emitted by the second heater 140 can penetrate deeply into the interior of the food. Therefore, if the food is heated using the second heater 140, the inside of the food can be uniformly cooked as a whole.

Referring again to FIG. 2, a heater that emits a shorter wavelength of energy includes more of the visible light ray region. This means that a heater that emits a shorter wavelength of energy can perform its role more effectively as a light. Accordingly, the first heater 130, which includes more of the visible light ray region, may be disposed closer to the window 121 of the door 120 than the second heater 140. Accordingly, the user can more easily check the state of the food being cooked in the main body 110 through the light emitted from the first heater 130.

The magnetron 150 is also installed inside the main body 110. The magnetron 150 emits microwaves to generate heat as water molecules in the food are rotated, thereby heating the food. However, since the specific configuration and the principle of the magnetron 150 are well known, a further description thereof will be omitted. The microwaves emitted by the magnetron 150 are usually within a long wavelength range of about 122 mm. Therefore, the second heater 140 penetrates deeper into the inside of the food, and the inside of the food can be more uniformly cooked.

The operation unit 160 is a part for allowing the user to operate the operation and stop of the compound oven 100 and other operating conditions. At this time, the operation unit 160 may include a button for selecting a type of food to be cooked by the user, for example, meat, fish, cereals, beans or paper, confectionery or baking. Then, the control unit (not shown) can automatically cook according to the operating specific gravity of the first heater 130, the second heater 140, and the magnetron 150 preset for each type of food. Alternatively, the operating unit 160 may include a button for setting the operating specific gravity of the first heater 130, the second heater 140, and the magnetron 150, respectively.

The display unit 170 is a part for displaying various operating states of the composite oven 100. [ Since the specific form and configuration of the display unit 170 are well known, a further description thereof will be omitted.

According to the configuration of the composite oven 100 described above, the control unit (not shown) controls the specific gravity of the first heater 130, the second heater 140, and the magnetron 150, , Or can be cooked to suit individual preferences of each user. Hereinafter, the cooking method will be described.

First, explain how to cook meat.

When meat is cooked, the smaller the thickness of the meat, the lower the specific gravity of the magnetron 150 may be. When the inside of the meat is heated by the magnetron 150, the moisture contained in the meat is also heated together with the heated water to be evaporated to the outside. The thinner the thickness of the meat, the more easily the moisture evaporates to the outside It is because. Accordingly, as the thickness of the meat is thinner, the specific gravity of the magnetron 150 is lowered, and moisture contained in the magnetron 150 is prevented from being excessively evaporated, thereby preventing the meat from becoming excessively dry or deteriorating the texture .

Or, as the weight of the meat is reduced based on the weight, the specific gravity of the magnetron 150 may be lowered. For example, when meat of about 300 g or less is cooked, the magnetron 150 can operate at an operating specific gravity of about 20% or less, and when it is cooked at about 300 to 700 g of meat, it can operate at an operating specific gravity of about 20 to 50% have.

At this time, the operating specific gravity of the first heater 130 and the second heater 140 may be appropriately adjusted according to the user's preference, for example, in the case of a steak, to be cooked to rare, medium, or well-done. However, the specific operating specific gravity may vary depending on the design conditions or conditions of use of the first heater 130 and the second heater 140, so that the specific operating specific gravity is not specified here.

On the other hand, the term " operating specific gravity "as used herein may mean a ratio of the operating time of the component to the total cooking time. For example, the operating specific gravity of the magnetron 150 is about 30%, which means that if the total cooking time is about 10 minutes, the magnetron 150 operates for about 3 minutes. However, the magnetron 150 may operate continuously for about three minutes, and the total sum of the operating time and the stopping time may be about three minutes.

Or the ratio of the actual operating output to the maximum output of the component. For example, the operating specific gravity of the first heater 130 is about 50%, which means that if the maximum output of the first heater 130 is about 1000 W, the first heater 130 operates at about 500 W.

Or the ratio of the emission energy of the component to the total emission energy.

The same is true of the "operating ratio"

Continuing to describe the case of cooking meat again, the magnetron 150 may only operate early in the cooking process, taking into account that the meat is typically circulated and stored in a refrigerated or frozen state. According to this, in the early stage, the magnetron 150 is used to heat the inside and outside of the meat, which has been low in temperature, uniformly to a specific temperature, preferably to a temperature at which moisture contained therein evaporates to the outside, Thereafter, the first heater 130 and the second heater 140 are used to heat the meat according to the user's preferences, thereby preventing the meat from being sufficiently ripped and burnt, and at the same time, It is also possible to prevent the phenomenon that the food becomes excessively dry or the texture is deteriorated.

Next, the case of cooking fish is explained.

Fish generally have a flat shape. When the meat is cooked, the operating specific gravity of the magnetron 150 is higher than that of the first heater 130 and the second heater 140 when the meat is cooked, for the reason that the operating specific gravity of the magnetron 150 is lowered as the meat thickness is thinner May be lower than the operating specific gravity. As an example, when cooking fish of about 200 g or less, the ratio of the cooking time of the magnetron 150 to the total cooking time may be about 25% or less. As another example, the ratio of the emission energy of the magnetron 150 to the total emission energy of the first heater 130, the second heater 140, and the magnetron 150 may be about 20% or less.

On the other hand, considering that the fish is also circulated and stored in a refrigerated or frozen state, the magnetron 150 can be operated only at the early stage of the cooking process, or can be repeatedly operated and stopped at a specific cycle. In particular, when the fish is frozen, it takes a longer time to learn the inside of the fish, so that the operating specific gravity of the magnetron 150 can be higher. The ratio of the emission energy of the magnetron 150 to the total emission energy of the first heater 130, the second heater 140 and the magnetron 150 is about 30% while the magnetron 150 operates periodically .

Next, the case of cooking cereal, pulp or paper is explained.

The gravity of the first heater 130, the second heater 140, and the magnetron 150 may have a value in the range of about 10 to 50%, respectively.

Particularly, when a document such as a potato or a sweet potato is cooked, the operation specific gravity of the magnetron 150 is set to be higher than the specific gravity of the first heater 130 or the second heater 130 140). ≪ / RTI > In addition, the specific gravity of the first heater 130 may be higher than the specific gravity of the second heater 140 in order to increase the texture and flavor of the surface and obtain the coloring effect. For example, the operating specific gravity of the first heater 130, the second heater 140, and the magnetron 150 may be about 30%, 20%, and 50%, respectively.

Finally, explain the case of baking or baking.

The operation specific gravity of the first heater 130 may be higher than the operation specific gravity of the second heater 140 when baking with a crunchy texture while obtaining the coloring effect of the surface in a relatively short time,

On the other hand, when the inside of the second heater 140 is heated evenly for a relatively long time so as to be able to expand uniformly as a whole, for example, when making a cookie or cake, the operating specific gravity of the second heater 140 is greater than the operating specific gravity of the first heater 130 Can be high.

The embodiments of the present invention described above and shown in the drawings do not limit the technical idea of the present invention. The scope of protection of the present invention is determined by the matters described in the claims. On the other hand, a person skilled in the art will be able to variously improve or change the technical idea of the present invention. For example, in addition to the first heater 130 and the second heater 140, a third heater, a fourth heater, or the like that emits energy of another wavelength may be further provided. Such modifications and changes are within the scope of the present invention as long as they are obvious to a person skilled in the art.

Claims (11)

A body capable of accommodating food,
A first heater installed in the main body to emit radiant energy to heat food,
A second heater installed in the main body to emit radiant energy of longer wavelength than the first heater to heat the food,
A magnetron installed in the main body to emit a microwave,
An operation unit for selecting a cooking object and
And a controller for controlling the specific gravity of the first heater, the second heater and the magnetron according to the selected cooking object,
Wherein the operation unit is configured to be able to select meat as a cooking object so that at least one of thickness and weight of the meat can be further input,
Wherein the controller controls the magnetron to operate at a lower operating specific gravity when the meat thickness is input when the meat is selected, when the thickness of the meat is smaller, and when the meat weight is input, when the meat weight is smaller. The method according to claim 1,
Wherein the first heater and the second heater are any one of a halogen heater, a transparent quartz heater, an opaque quartz heater, a carbon heater, a ceramic heater, or a sieve heater. The method according to claim 1,
Further comprising a window for the user to view the interior of the body,
Wherein the first heater is disposed closer to the window than the second heater. delete delete The method according to claim 1,
The operation unit is configured to be able to select fish as a cooking object,
Wherein the control unit controls the magnetron to operate at a lower operating specific gravity than the first heater and the second heater when fish is selected. The method according to claim 6,
Wherein the control unit controls the magnetron to operate at an operating specific gravity of 25% or less. The method according to claim 1,
Wherein the operation unit is configured to be capable of selecting cereals, pulses, or documents as a cooking object,
Wherein the control unit controls the operating specific gravity of the first heater, the second heater, and the magnetron to have values in the range of 10 to 50%, respectively, when cereals, pulses, or documents are selected. 9. The method of claim 8,
Wherein the controller controls the magnetron, the first heater, and the second heater to operate at a high operating specific gravity in this order when a document is selected. The method according to claim 1,
Wherein the operating portion is configured to be able to select a toast flow as a cooking object,
Wherein the controller controls the first heater to operate at a higher operating specific gravity than the second heater when the toast flow is selected. The method according to claim 1,
The operation unit is configured to be able to select a cookie or a cake as a cooking object,
Wherein the controller controls the second heater to operate at a higher operating specific gravity than the first heater when a cookie or a cake type is selected.

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