KR102381691B1 - Detachable Ultrasonic Device for Frying And Frying Machine Therewith - Google Patents

Abstract

The present invention relates to a detachable ultrasonic device for a fryer, which is used in a state where a case with an ultrasonic vibrator is in frying oil in an oil reservoir. The ultrasonic device-equipped fryer of the related art is limited in the range of use as the device is integrated with the fryer, and thus it is necessary to conduct research on an ultrasonic frying device that can be used in various environments. In the related art, ultrasonic oil reservoir vibration and indirect ultrasonic vibration of food or oil are used for high-temperature frying. However, it is necessary to develop a technique for directly controlling ultrasonic vibration control. The present invention has been made in view of the above. An object of the present invention is to provide a detachable ultrasonic device for a fryer that can be detachably installed on a fryer. Another object of the present invention is to provide an ultrasonic device for a fryer, in which a sealed ultrasonic vibrator is used in oil in an oil reservoir for direct ultrasonic vibration transmission to the oil and food.

Description

Detachable Ultrasonic Device for Frying And Frying Machine Therewith

The present invention relates to a detachable ultrasonic device for a fryer, and more particularly, to a detachable ultrasonic device for a fryer in which a case having an ultrasonic vibrator is put into the frying oil of an oil storage tank.

Ultrasound refers to a sound wave having a frequency higher than the audible frequency of 20 to 20,000 Hz, and since ultrasound can transmit a signal that is inaudible to the human ear, it is used for focusing on a remote control or a camera. In addition, since ultrasonic waves have a short wavelength, they are often used to precisely grasp the shape through ultrasonic waves that collide with objects and are reflected. used to Ultrasound is being applied to various fields such as ultrasound imaging, sonar that is an ultrasonic detector, and ultrasonic cleaner.

If such ultrasonic waves are used in a fryer, rancidity of oil can be suppressed, food can be cooked quickly and evenly, and as a prior art for applying ultrasonic waves to a fryer, there is Republic of Korea Patent Registration No. 10-0761971, and ultrasonic waves inside the fryer An oscillator and an ultrasonic decomposition chamber are provided to purify edible oil using ultrasonic vibration energy, and a fryer capable of reusing edible oil in a clean and purified state is disclosed by passing it through a refinery chamber equipped with an oil refining unit made of fine wire mesh and cotton seal rods. there is. In addition, Korean Patent No. 10-1849554 discloses a frying apparatus using ultrasonic waves that can provide ultrasonic waves to the process of cooking while heating a container in which frying oil for frying is accommodated. In addition, Republic of Korea Patent Publication No. 10-1987026 discloses an ultrasonic fryer having a pair of ultrasonic oscillators so as to be structurally simple, easy to assemble, install, and maintain, and to reduce power consumption by improving uniform heating of oil. there is. In addition, in Republic of Korea Patent Publication No. 10-2141952, ultrasonic vibration frying is provided with ultrasonic vibrators on both sides of the bottom of the frying container, so that faster frying is made by ultrasonic vibration during frying, and the generation of oil vapor is minimized to reduce the risk of burns. The device is disclosed.

However, although the prior art discloses a fryer equipped with an ultrasonic device, it is integrally attached to the fryer and thus the range of use thereof is limited. Accordingly, there is a need for research on an ultrasonic device for frying that can be used in various environments. In addition, while the prior art uses a method of vibrating an oil tank with ultrasonic waves or indirectly vibrating oil or food with ultrasonic waves during a high-temperature frying process, it is necessary to develop a technology for directly controlling ultrasonic vibration control.

Republic of Korea Patent Publication No. 10-0761971 Republic of Korea Patent Publication No. 10-1849554 Republic of Korea Patent Publication No. 10-1987026 Republic of Korea Patent Publication No. 10-2141952

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a detachable ultrasonic device for a fryer that can be installed and used in a detachable manner in a fryer.

Another object of the present invention is to provide an ultrasonic device for a fryer that can directly transmit ultrasonic vibrations to oil and food by immersing a case having a sealed ultrasonic vibrator in oil of an oil storage tank.

In order to achieve the above object, the present invention provides an empty case unit; a vibrating unit located inside the case unit to generate ultrasonic waves; an oscillator continuously sending an electrical signal to the vibrating unit; a cable connecting the vibrating unit and the oscillating unit; and a connection part connecting the upper part of the case part and one side of the oscillation part, and protecting the cable.

Here, the front surface of the vibrating unit and the case unit are in close contact so that the vibrating unit does not move, so that welding is preferable.

Here, if the thickness of the front surface of the vibrating part and the surface to be welded in close contact with the case part is x and the thickness of the other surface of the case part is y, the x is preferably thinner than the y.

Here, the connecting portion is preferably a fixed tube or a metallic flexible tube.

In addition, in order to achieve the above object, the present invention is a detachable ultrasonic device for a fryer that can be used in a plurality of oil storage tanks, a first case part with an empty inside; a first vibrating unit; a first oscillation unit for continuously sending an electrical signal to the first vibrating unit; a first cable connecting the first vibrating unit and the first oscillating unit; a first connection part connecting an upper part of the first case part and one side of the first oscillation part; a second case part with an empty interior; a second vibrating unit positioned inside the second case unit to generate ultrasonic waves; a second oscillation unit for continuously sending an electrical signal to the second vibrating unit; a second cable connecting the second vibrating unit and the second oscillating unit; and a second connection part connecting the upper part of the second case part and one side of the second oscillation part.

As described above, according to the present invention, the ultrasonic device can be installed without using a fryer in which the ultrasonic device is integrated, and can be used regardless of the shape or size of the oil storage tank.

In addition, since the ultrasonic vibrating part can be fixed in the oil storage tank, the ultrasonic waves are transmitted directly to oil and food, and the effect of suppressing rancidity using ultrasonic waves, reducing oil vapor, and improving the flavor of frying is far superior than the conventional ultrasonic fryer.

In addition, there is an effect of maintaining the temperature stably by accelerating the convection of the oil through ultrasonic waves in the oil storage tank to uniformly heat the oil.

1 is a perspective view of a detachable ultrasonic device for a fryer according to an embodiment of the present invention.
2 is an internal view of a case portion and a connection portion according to an embodiment of the present invention.
3 is an internal view of a case portion and a connection portion according to another embodiment of the present invention.
4 is a view of a case portion and a connection portion according to another embodiment of the present invention.
5 is a view of a case portion and a connection portion according to another embodiment of the present invention.
6 is an internal view of a case portion and a connection portion according to another embodiment of the present invention.
7 is an internal view of a case part and a connection part according to another embodiment of the present invention.
8 is a schematic diagram of a detachable ultrasonic device for a fryer according to an embodiment of the present invention.
9 is a schematic view of a detachable ultrasonic device for a fryer having an air injection unit according to an embodiment of the present invention.

In the following drawings, the same reference numerals refer to the same components, and the size of each component in the drawings may be exaggerated for clarity and convenience of description. Meanwhile, the embodiments described below are merely exemplary, and various modifications are possible from these embodiments. Hereinafter, what is described as "upper" or "upper" may include not only directly on in contact but also on non-contacting. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. The singular expression includes the plural expression unless the context clearly dictates otherwise. Also, when a part "includes" a component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, terms such as “…unit” and “module” described in the specification refer to a unit that processes at least one function or operation.

Hereinafter, a configuration of a detachable ultrasonic device for a fryer according to an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view of a detachable ultrasonic device for a fryer according to an embodiment of the present invention, and FIG. 2 is an internal view of a case part 100 and a connection part 300 according to an embodiment of the present invention.

The detachable ultrasonic device for a fryer according to the present invention includes a case unit 100 that is used by being immersed in a storage tank 10 containing oil 50, and a vibrating unit 200 that generates ultrasonic waves inside the case unit 100. , the ultrasonic connection cable 20 is configured to include a connection part 200 that protects it from being damaged by oil, and an oscillation part 500 that sends an electrical signal to the vibrating part 200 .

The oil storage tank 10 of the fryer contains frying oil and heats and cooks food by a heating unit (not shown) connected to the oil storage tank 10 . Since food is put into the oil storage tank 10 and the inside is in contact with the high-temperature oil 50, the oil storage tank 10 is not harmful to the human body, and it is preferable to use a material that does not deteriorate even at high temperature and long-term use. Do. The heating unit cooks food by heating the oil 50 in the oil storage tank 10 to 120° C. to 200° C. As a heating method, there is a method of generating heat by accommodating a heating coil in a metal pipe and passing a current through the heating coil, or heating by burning gas. does not

1 and 2, the case part 100 is immersed in the oil storage tank 10 containing the oil 50 so that the connection part 300 is welded to the hole in the upper part of the case part 100 so that it can be used. sealed The case unit 100 is made of a metallic material, and is located inside the case unit 100 to protect the vibrating unit 200 that generates ultrasonic waves from the high temperature oil 50 . Since the vibrator of the ultrasonic vibrating unit 200 is vulnerable to high temperature, it is important to completely seal the case unit 100 . The front surface of the vibrating unit 200 is preferably in close contact with the case unit 100 through welding. In order to reduce noise and vibration generated during ultrasonic vibration, close contact between the vibrating unit 200 and the case unit 200 is important, and the ultrasonic vibration of the vibrating unit 200 is transmitted through the case unit 100 with an empty metallic interior. (500) and will be delivered to the food. Even if the temperature is set to a relatively lower temperature than the temperature in a normal fryer due to the vibration of the ultrasonic wave generated in the ultrasonic generator of the vibrating unit 200, the temperature of the oil 50 can be raised by the ultrasonic wave, so that power consumption can be reduced. In addition, the generation of oxides such as charcoal is significantly reduced even when frying food. And, by weakening the viscosity of the oil 50 by the vibration energy of the ultrasonic wave, the oil 50 can be easily heated, which has an energy saving effect. In addition to preventing it, it has the effect of improving the taste of food after frying. In order to obtain this effect, an ultrasonic vibrator of sufficient output must be installed in the vibrating unit 200 to transmit sufficient ultrasonic vibration to the oil 50 of the oil storage tank 10 .

Ultrasonic waves generated by the vibrating unit 200 are transmitted to the oil 50 and food in the oil storage tank 10 through the case unit 100 . The case part 100 is hollow and serves as a resonance tube. Accordingly, if the resonance characteristics are increased in the structure of the case unit 100 , the ultrasonic waves generated from the vibrating unit 200 may be transmitted without reducing the output. 6 is an internal view of the case part 100 and the connection part 300 according to another embodiment of the present invention. Referring to FIG. 6 , if the thickness of the metal surface on which the front surface of the vibrating part 200 and the case part 100 are closely welded is x, and the thickness of the metal surface other than the metal surface is y, the thickness of x A value smaller than the value of y may be advantageous for ultrasonic resonance. The thinner the metal surface of the case part 100 in contact with the vibrating part 200 , the better the ultrasonic vibration may be transmitted to the case part 100 . The thickness of the metal surface of the case part 100 in contact with the vibrating part 200 is limited in consideration of actual workability, and the thickness ratio of y to x is preferably 1:0.3 to 0.8. 7 is an internal view of the case part 100 and the connection part according to another embodiment of the present invention. Referring to FIG. 7 , the metal surface to which the front surface of the vibrating unit 200 and the case unit 100 are closely welded is preferably a double or triple layer. Making the metal surface in multiple layers uses the resonance phenomenon of sound waves, and it is intended to transmit ultrasonic waves more efficiently by increasing the resonance through the thin metal surface in multiple layers.

The ultrasonic device of the present invention uses the cavitation of ultrasonic waves, and when ultrasonic waves are generated in water or oil, decompression and pressure increase are repeatedly caused by the vibration of ultrasonic waves, and negative pressure is formed in the half-cycle of the decompression side at the ultrasonic wave length. In the meantime, cavitation causes fine bubbles to be generated. The generated bubbles contract at the increased pressure and expand at the reduced pressure. This bubble repeats contraction and expansion until it exceeds the surface tension of water or oil, and the particle size increases. When the pressure exceeds the surface tension of water or oil, the bubble contracts and explodes, creating a very large shock wave. Ultrasonic cavitation is accompanied by high pressure and high temperature along with the shock wave to suppress the rancidity of oil and also suppress the generation of oil vapor.

3 is an internal view of a case portion and a connection portion according to another embodiment of the present invention. The vibrating unit 200 may change the direction of a portion connected by welding between the vibrating unit 200 and the case unit 100 as shown in FIG. 3 in consideration of the efficiency of ultrasonic vibration. It is preferable that the case part 100 is immersed in the oil storage tank 10 and located at a certain place, and if the case part 100 is not in a fixed position, vibration and noise may be generated. Accordingly, a separate mounting device (not shown) may be provided on the case unit 100 or the connection unit 300 to fix the case unit 100 to the oil storage tank through the mounting unit.

The case unit 100 is connected to the oscillation unit 500 through the connection unit 300 . The connection part 300 is made of a metallic material and may be connected to the case part 100 through welding. The welding part connected to the case part 100 must be completely sealed so that oil cannot enter. An electric cable 20 connecting the vibration unit 200 and the oscillation unit 500 is positioned inside the connection unit 300 . 4 is an internal view of the case 100 and the connection part 300 according to another embodiment of the present invention, and FIG. 5 is an interior view of the case part 100 and the connection part 300 according to another embodiment of the present invention. It is also The connection unit 300 may use a metallic flexible tube to facilitate connection with the oscillation unit 500 . A flexible tube can be used for all of the connection parts 300 as shown in FIG. 4, but more preferably, an integral metallic tube is used for the part submerged in the oil 50 as shown in FIG. 5, and the part without contact with the oil 50 is Flexible tubing may be used. That is, the connection part 300 of the present invention may be formed of a fixed tube and a flexible tube, and the fixed tube is connected to the upper surface of the case portion 100 . The end of the connection unit 300 connected to the oscillation unit 500 is made in a plug shape to be detachable, so that the connection unit and the oscillation unit 500 may be separated and stored.

The oscillator 500 continuously sends an electrical signal to the vibrator 200 , and the oscillator 500 is located inside the control module 400 . The control module 400 may include a power supply unit (not shown) for supplying power, a switch unit (not shown), an oscillator 500 , and a PCB unit (not shown) for controlling the oscillation unit 500 . In the present invention, as the output of the ultrasonic wave, a short-frequency ultrasonic wave of 60 to 70 kHz used for cleaning precision parts may be used. The present invention uses ultrasonic cavitation, and ultrasonic cavitation of 60 to 70 kHz can achieve optimal ultrasonic cavitation than generally used less than 60 kHz. Most preferably, the range of 68 to 70 kHz ultrasound is used. The higher the frequency, the smaller the water or oil particles can be broken. However, since the ultrasonic cavitation decreases as the frequency increases, it is preferable to use ultrasonic waves in the above range in the present invention.

In order to be used in a plurality of oil storage tanks, a plurality of case parts 100a, 100b, vibrating parts 200a, 200b, cables 20a, 20b, connection parts 300a, 300b and oscillation parts 500a and 500b are required. 8 illustrates two case parts 100a and 100b, vibrating parts 200a and 200b, cables 20a and 20b, a connection part 300 and an oscillation part 500 according to an embodiment of the present invention. Referring to FIG. 8 , a first case part 100a used in the first oil storage tank 10a, a first vibrating part 200a positioned inside the first case part 100a, and a first vibrating part 200a A first connection part 300a that protects the first cable 20a of 2 The second case part 100b used for the oil storage tank 10b, the second vibrating part 200b located inside the second case part 100b, the second cable 20b of the second vibrating part 200b) A second connection part 300b that protects the , and a second oscillation part 500b that transmits an electrical signal through the second cable 20b of the second connection part 300b constitute one other ultrasound device. The two ultrasound devices are controlled by the common control module 400 . Even if there are a plurality of ultrasound members in this way, it is preferable that one control module 400 controls them.

9 is a schematic diagram of an ultrasound device having an air injection unit 600 according to an embodiment of the present invention. The inside of the connection part 300 may include an air injection pipe 60a and an air discharge pipe 60b. 9, the detachable ultrasonic device for a fryer of the present invention further includes an air injection unit 600, and the air discharge pipe 60a inside the connection unit 300 to the pump device of the air injection unit 600. It can be sent to the inside of the case unit 100 through. The case part 100 is heated by the temperature of the heated oil 50 , and this high temperature may adversely affect the performance of the vibrating part 200 . The air injected through the air injection pipe 60a cools the vibrating unit 200 while circulating through the case unit 100 , and the air is discharged through the air discharge pipe 60b. The air injection unit 600 discharges the heated air to the outside through a fan. Through cooling using air, the vibrator 200 may maintain a constant temperature and maintain its original performance.

The present invention can provide a frying apparatus having an oil storage tank (10), a storage tank holder for fixing the oil storage tank (10), and a detachable ultrasonic device for fryers located in the oil storage tank (10). The detachable ultrasonic device for the fryer may be detachably fixed to the oil storage tank 10 or the oil storage tank holder.

The operation of the detachable ultrasonic device for a fryer of the present invention having the above structure will be described below.

A detachable ultrasonic device for a fryer of the present invention and a general fryer are prepared. The oil 50 is injected into the oil storage tank 10 , the case part 100 is immersed in the oil storage tank 10 , and the case part 100 is fixed to the oil storage tank 10 using the mounting device of the case part 100 . and place the control module 400 on a flat surface. By simultaneously operating the heating unit and the control module 400 of the fryer, the temperature of the oil 50 is raised to 120° C. In order to operate the detachable ultrasonic device for a fryer of the present invention, the switch unit of the control module 400 is placed in an operating state, and the power entered through the power supply unit passes through the oscillation unit 500 to the vibrating unit 200 through the cable 20. will be transmitted The vibrator 200 generates ultrasonic waves having a predetermined frequency. Put the frying basket in the oil storage tank 10 at which the temperature is raised, and put the food to be fried into the frying basket to proceed with frying. When the frying is finished, the heating part of the fryer is turned off, and the frying basket is removed from the oil storage tank (10).

The detachable ultrasonic device for a fryer of the present invention has an effect of suppressing rancidity of the oil (50). Accordingly, although the heating unit is turned off in the state of frying, the oil can be refined by continuously operating the ultrasonic wave for a certain period of time. When the detachable ultrasonic device for a fryer of the present invention is used, there is almost no oil vapor during frying, and there is no risk of burns because oil does not splash even when water enters. In addition, the oil does not penetrate the food well, the fried food does not become oily, and even when several foods are fried together, the smell of the food does not penetrate into other foods, so that the original flavor of the food is not lost. In addition, the ultrasonic wave promotes the convection of the oil 50 in the oil storage tank 10 to uniformly heat the oil 50 so that the temperature can be stably maintained.

If the detachable ultrasonic device for a fryer of the present invention is used in a plurality of oil storage tanks 10 , each case unit 10 is placed in the oil storage tank 10 and controlled through the control module 400 . The control module 400 is provided with a plurality of oscillation units 500 to control each of the oscillation units 500 separately even when the plurality of case units 10 and the vibrating unit 20 are used. According to the embodiment of the present invention, a plurality of oscillation units 500 are provided in the control module 400, and each oscillation unit 500 has a terminal capable of plugging the cable 20 of the connection unit 300 into a plurality of oscillation units 500 . East 200 can be controlled.

The present invention is not limited to the above embodiments, but can be manufactured in various different forms, and those of ordinary skill in the art to which the present invention pertains can take other specific forms without changing the technical spirit or essential features of the present invention. It will be understood that it can be implemented as Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

10: oil tank
10a: first storage tank
10b: second storage tank
20: cable
20a: first cable
20b: second cable
30: welding point
40: flexible tube
50: oil
60a: air inlet pipe
60b: air exhaust pipe
100: case part
100a: first case part
100b: second case part
200: vibration unit
200a: first vibration unit
200b: second vibration unit
300: connection
300a: first connection part
300b: second connection part
400: control module
500: oscillation part
500a: first oscillation unit
500b: second oscillation unit
600: air inlet

Claims (5)

The inner case part is empty; a vibrating unit positioned inside the case unit to generate ultrasonic waves; an oscillation unit continuously sending an electrical signal to the vibrating unit; a cable connecting the vibrating unit and the oscillating unit; And it is a frying apparatus comprising a detachable ultrasonic device for a fryer comprising a; and a connecting portion that connects the upper portion of the case portion and one side of the oscillation portion, and protects the cable,
So that the vibrating unit does not move, the inner surface of the vibrating unit and the case unit are welded in close contact, and the thickness of the metal surface where the front surface of the vibrating unit and the case unit are closely welded is x, If the thickness of the metal surface is y, the value of x is smaller than the value of y, and the metal surface, which is welded in close contact with the front surface of the vibrating part and the case part, is formed as a double or triple multiple layer,
An oil storage tank, a storage tank holder for fixing the oil storage tank, and a detachable ultrasonic device for the fryer located in the oil storage tank, wherein the detachable ultrasonic device for the fryer is detachably fixed to the oil storage tank or the oil storage tank fixture Frying device, characterized in that it becomes. delete delete delete delete

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