KR20020045878A - A cooker using ultrasonic - Google Patents

Abstract

PURPOSE: A cooking device of food is provided to reduce the cooking time of the food by exciting supersonic waves to food. CONSTITUTION: A cooking device contains a table(56) arranged inside a cavity(54) to put food(51); a heater(70) to cook the food by heating the food on the table; a driving portion to rotate the table; and a supersonic exciting portion(80) to accelerate a heat transmission inside the food by generating supersonic waves. By exciting the supersonic waves to the food, the heat is smoothly transmitted to the food without any interruption by pores or fibroid materials of the food. Therefore, the cooking time of the food is reduced.

Description

Food cooker using ultrasonic wave {A cooker using ultrasonic}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food cooking apparatus, and more particularly, to a food cooking apparatus using ultrasonic waves capable of shortening the cooking time of food by having ultrasonic waves inside the food.

In general, the food cooking apparatus may include a container in direct contact with a heat source. The food cooking apparatus may include a food to be cooked in this container and cook the food by heating the container.

In addition, many kinds of cooking apparatuses have been developed that use electric energy directly or indirectly. As an example, a microwave oven using microwave as a heating source can be cited. Microwaves use electricity to generate microwaves, penetrate the microwaves into cooking objects, causing molecular vibrations in the food, and heating the food to the deep within a short time as heat is generated by molecular vibrations inside the food. To make it possible.

1 is a perspective view of a microwave oven according to the prior art, Figure 2 is a cross-sectional view showing the configuration of the main portion of the microwave oven according to the prior art.

In the conventional microwave oven, as shown in FIG. 1, a cavity 4 including a table 6 on which food 1 is placed, and an outside of the cavity 4 are assembled. A case (2) provided with a driving control unit (28) and a control unit (not shown) for driving operation of the vehicle; Rotatably coupled to the case (2), it comprises a door 10 having a viewing window (8).

As shown in FIG. 2, the table 6 is rotatably supported by the roller 12, and a plurality of the rollers 12 are attached to the rotary ring 14 at the bottom of the cavity 4. In addition, the rotary ring 14 is coupled to the rotary shaft 17 of the drive motor 16, the central portion is disposed between the cavity 4 and the case (2).

In addition, the case 2 includes a magnetron (not shown) for oscillating microwaves; A heat dissipation fan (not shown) and a motor (not shown) are installed to dissipate heat generated by the magnetron, and a waveguide (not shown), which is a traveling path of microwaves, is formed between the magnetron and the cavity 4. .

On the other hand, recently, in addition to cooking food by the microwave according to the request of the consumer to be able to cook a variety of food using the heater 20.

In the conventional microwave oven configured as described above, after the user puts the food 1 cooked using the heater 20 on the table 6, the door 10 is closed and the driving unit 28 is closed. When the operation operation for operating the heater 20 is performed, the controller determines this and applies power to the heater 20, and heat is emitted from the heater 20, and the heat is radiated or convection. It is absorbed by the food 1 placed on the table 6.

In addition, the control unit outputs a drive signal to the drive motor 16, the rotary ring 14 and the roller 12 connected to the rotary shaft 17 by the drive of the drive motor 16 is the table As the table 6 and the food 1 are rotated together by the roller 12, the food 1 placed on the table 6 is heated uniformly while being rotated at the lower side of the 6.

On the other hand, the food 1 is absorbed by the heat of its surface, and the heat is heated to the core of the food 1 by conduction.

However, in the cooking of the food 1 by the heater 20 as described above, the fibrous tissue (not shown) or the pores (not shown) of the food 1 placed on the table 6 may be removed from the food 1. The heat transmitted to the surface serves as a resistance to interfere with the heat conduction during the conduction to the core of the food (1) has a problem that the fast cooking of the food (1) is difficult.

The present invention has been made to solve the problems of the prior art, it is an object of the present invention to provide a food cooking apparatus using ultrasonic waves that can reduce the food cooking time by having an ultrasonic wave in the food.

1 is a perspective view of a microwave oven according to the prior art,

Figure 2 is a cross-sectional view showing the configuration of the main part of the microwave oven according to the prior art,

3 is a cross-sectional view showing the configuration of the main part of an embodiment of a food cooking apparatus using ultrasonic waves according to the present invention;

Figure 4 is a cross-sectional view showing the configuration of the main part of the second embodiment of the food cooking apparatus using ultrasonic waves according to the present invention.

<Explanation of symbols on main parts of the drawings>

51: food 52: case

54: cavity 56: table

66: drive motor 67: rotating shaft

70: heater 80: ultrasonic excitation part

According to an aspect of the present invention, there is provided a food cooking apparatus using ultrasonic waves, the table being disposed inside the cavity in which the food is stored and the food being placed thereon; A heater for cooking food by applying heat to the food; It characterized in that it comprises an ultrasonic wave excitation for generating ultrasonic waves to promote heat transfer in the food.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional view showing the configuration of the main part of the food cooking apparatus using ultrasonic waves according to the present invention.

As shown in FIG. 3, the food cooking apparatus using ultrasonic waves according to the present invention includes a table 56 on which food 61 is placed and placed inside a cavity 54 in which food 51 is accommodated; A heater (70) for cooking food (51) by applying heat to the food (51) placed on the table (56); A drive unit for rotating the table (54); It is configured to include an ultrasonic wave excitation portion 80 for generating ultrasonic waves to promote heat transfer in the food (51).

A case 52 is formed outside the cavity 54 to form the exterior of the food cooking apparatus, and a driving unit (not shown) and a controller for driving operation of the food cooking apparatus are formed at one side of the case 52. (Not shown) is disposed between the case 52 and the cavity 54, the reflecting plate 74 for reflecting the heat emitted from the heater 70 opposite the food 51 to the food 51 side Is placed.

The heater 70 is installed on one side wall of the cavity 54 to generate heat by applying power from the control unit according to the pressing operation of the driving unit to radiate heat to the outside, and radiate the radiated heat to the food (51). Radiator cooking heater for transmitting to), and convection cooking heater for transferring the radiated heat to the food 51 in a convection manner by the operation of a blower (not shown).

The driving unit is a driving motor 66 in which a rotation shaft 67 protrudes toward the table 56, and an upper end of the rotation shaft 67 is rotatable between the table 56 and the bottom of the cavity 54. The central portion of the disposed rotary ring 64 is connected, and at the end of the rotary ring 64 is rotatably supported by the drive motor 66 while rotatably supporting the table 56 so that the table 56 is rotated. The rotating roller 62 is connected.

The ultrasonic wave excitation unit 80 is disposed on the rotation shaft 67, and the pores (not shown) or the fibrous tissue (not shown) of the food 51 placed on the table 56 by applying an ultrasonic wave to the rotation shaft 67. ) To promote heat conduction in the pores and fibrous tissue.

On the other hand, the ultrasonic wave excitation unit 80 is composed of an oscillator (not shown) for generating an electrical signal of high frequency, and a vibrator (not shown) for converting the electrical signal into an ultrasonic wave (not shown), the vibration of the ultrasonic wave Examples of the vibrator that causes the vibration are magnetostrictive vibrators (not shown) using the magnetostrictive effect that causes vibration while the length is changed by the magnetic field, and piezoelectric vibrators (not shown) using the piezoelectric effect that causes the vibration by changing the width by the electromagnetic field. In addition, the ultrasonic wave excitation unit 80 is an extremely common one widely used in an ultrasonic cleaner, a welding machine, and a medical diagnostic device.

Referring to the operation of the present invention configured as described above are as follows.

First, when a user places a food 51, which is an object of cooking, on the table 56, and performs a driving operation for operating the heater 70 in the driving operation unit, the control unit determines that the heater 70 is determined. The heater 70 is heated to transfer heat to the surface of the food 51 by radiation or convection, and gradually heats from the outside to the inside by heat conduction in the food 51. It is cooked.

At this time, the controller outputs a drive signal to the drive motor 66 to rotate the rotary shaft 67, the rotary ring 64 and the roller 62 connected to the rotary shaft 67 is the table 56 and It rotates between the bottoms of the cavities 54 to rotate the table 56 and the food 51 so that heat is uniformly transferred to the food 51.

On the other hand, in the food cooking apparatus as described above to concentrate the radiant heat of the radiation cooking heater to the food 51 by the reflecting plate 74 or the like or increase the flow rate of the circulating air passing through the convection cooking heater of the food 51 The amount of heat transfer to the surface can be increased.

In addition, when the rotary shaft 67 is rotated, the ultrasonic wave is excited by the control unit in the ultrasonic wave excitation unit 80 such that the table 56 is rotated through the rotary shaft 67, the rotary ring 64, and the roller 62. The vibration is transmitted to, and the vibration is transmitted to the food 51 placed on the table 56, the vibration shakes the pores or fibrous tissue inside the food 51 to reduce the resistance to heat conduction of the pores or fibrous tissue. According to this facilitates the conduction of heat transferred to the food surface can be cooked up to the core of the food 51 in a short time.

Figure 4 is a cross-sectional view showing the configuration of the main portion of the second embodiment of the food cooking apparatus using the ultrasonic wave of the present invention, the ultrasonic wave excitation unit 90 with ultrasonic waves is disposed below the table 56, and other configurations Same as the embodiment mentioned above.

The ultrasonic excitation part 90 is fixed to the lower side of the table 56 and rotates together with the table 56 to shake the fibrous tissue or pores inside the food 51 by exciting the ultrasonic material with the food 51. As the zoom is reduced, the resistance to the heat conduction of the fibrous tissue or the pores of the food 51 is reduced, and the heat conduction is accelerated to cook up to the core of the food 51 at a short time.

The food cooking apparatus using the ultrasonic wave of the present invention configured as described above has an ultrasonic wave in the food stored inside the cavity to prevent the heat transfer by the pores or the fibrous tissue inside the food, thereby reducing the cooking time of the food. It can work.

Claims (3)

A table disposed inside the cavity in which food is stored and placed on the food; A heater for cooking food by applying heat to the food; Food cooking apparatus using the ultrasonic wave, characterized in that it comprises an ultrasonic wave generating unit for generating ultrasonic waves to promote heat transfer in the food. The method of claim 1, The food cooking apparatus using the ultrasonic wave is configured to further include a drive unit for rotating the table, the ultrasonic excitation portion is a food cooking apparatus using ultrasonic waves, characterized in that disposed on one side of the rotating shaft connecting the table and the drive unit. The method according to claim 1 or 2, The ultrasonic excitation portion is a food cooking apparatus using ultrasonic waves, characterized in that arranged on the lower side of the table.