KR100430820B1 - eletric pressure rice cooker having high-frequency wave generator - Google Patents

Abstract

The present invention relates to an electric pressure cooker having a high frequency generator, in the electric pressure cooker heated by a hot plate and a heating wire, the control unit 41 for setting the operation time and heating time, heating conditions, etc., on one side of the operation control and food. A housing 10 having a control box 40 having an outside; A pressure shell 51 made of a conductive material and formed by penetrating the bottom surface thereof; A cooking vessel 50 made of a size enough to be inserted into an inner wall of the outer shell and made of a non-conductive material; An antenna cap (70) formed in the through portion of the shell (51) to be interviewed under the bottom surface of the cooking vessel (50), the bottom of which being dug into a semi-circular portion (71); A high frequency generator (30) positioned below the antenna cap to scan high frequencies into the cooking vessel (50); Pressure between the lid inner plate 23 and the lid outer plate 22 and the lid and the cooking vessel 50, which are located inside the lid and made of a conductive material, respectively installed on the lower and upper portions of the heat resistant plate. A lid 20 formed to open and close the rice cooker while being made of a pressure packing 24 to prevent leakage; The pressure adjustment weight which is formed at the center between the lid outer plate 22 and the lid inner plate 23 to maintain the maximum pressure of the cooking vessel 50 at 0.8kgf / cm 2 may raise the internal temperature to 116 ° C. when cooking ( 60); It is provided to the bottom of the cooking vessel 50, the temperature sensor 80 that can accurately measure the temperature in the cooking vessel 50; consisting of.

Therefore, the cooking object contained in the cooking vessel is directly heated using a high frequency generator to cook, and thus the cooking vessel can be applied to non-conducting injection molded products, glass, ceramics, etc. As a result, parts cost is reduced, and heat loss is reduced by heating a cooking object directly through a conductor, thereby reducing rated power consumption.

In addition, when cooking foods such as rice and steamed rice, the leakage of water vapor is prevented to increase the thermal efficiency, and also to prevent the loss of nutrition of the cooked food and to double the taste of the food. It is possible to accurately measure the internal temperature of the rice cooker, which allows the cooking of any kind of food accurately.

Description

Eletric pressure rice cooker having high-frequency wave generator

The present invention relates to an electric pressure cooker equipped with a high frequency generator, and more particularly, by using a high frequency generator such as a magnetron (magnetron) to directly heat the cooking object contained in the cooking vessel, pressure cooking, non-conductive cooking vessel It can be applied to chain injection molding, glass, ceramics, etc., and the part cost is reduced by not having to coat the inner surface of this cooking vessel separately, and heat loss is reduced by directly heating the cooking object without going through a conductor. It relates to an electric pressure cooker having a high frequency generator to reduce the.

In general, an electric pressure field cooker is a cooking container containing a cooking object, such as rice, grains, brown rice, etc. in the cooking vessel, the heating plate is usually installed on the bottom of the cooking vessel, the cooking vessel is heated by the hot plate to cook the cooking object. .

Here, most of the cooking vessels are made of a material such as aluminum or steel that has good thermal conductivity and can withstand high pressure, and the inner skin can be prevented from sticking to the cooking objects to be cooked. to be.

Meanwhile, in the conventional electric pressure cooker, the heat generated from the hot plate heats the cooking vessel, and as the water contained in the heated cooking vessel is heated again, the cooking object mixed with the water is cooked, and thus the heat is heated from the hot plate to the cooking vessel. As the heat is transferred, some heat is lost and energy is wasted, and the heat transferred to the cooking object contained in the cooking vessel is heated by rising from the bottom to the upper layer. The disadvantage is that the taste of the lower layer is not the same.

In addition, as the inner surface of the cooking vessel is coated, the processing cost of parts increases, and when cleaning the cooking vessel with a coarse scrubber, the first purpose of preventing the rice from sticking as the coating surface is peeled off has occurred. .

On the other hand, the existing microwave oven was developed in the United States to be cooked and cooked in a format that is adapted to Western food culture.The method is a high-frequency injection heating method using magnetron, and conducting heating cookers such as electric heating wire and hot plate. Compared with the thermal efficiency of 200% or more is known. However, the problem is not solved in the end of food cooking. In other words, since there is no device that can handle the steam generated in the process of cutting off the inside of the microwave oven, it may damage the product depending on the degree, and the current situation is that it is not possible to solve the overflow phenomenon.

In addition, since the temperature of the food to be cooked can not be measured, various types of foods to be cooked are adjusted with time and the user directly checks and judges them, which causes troublesome shortcomings. There were always disadvantages.

Accordingly, the present invention has been invented to solve the problems described above, and to provide a cooking utensil suitable for our food culture mainly to cut off the food, to cook by heating directly the cooking object contained in the cooking vessel using a high-frequency generator. Therefore, the cooking vessel can be applied to non-conducting injection molding products, glass, ceramics, etc., and the cooking cost can be reduced by not coating the inner surface of the cooking vessel separately, as well as by heating the cooking object directly through the conductor. It is an object of the present invention to provide an electric pressure cooker equipped with a high frequency generator capable of reducing the heat consumption to reduce the rated power consumption.

In addition, an object of the present invention is to prevent the leakage of water vapor to increase the thermal efficiency when cooking the endless food, as well as to prevent the loss of nutrition of the cooked food and can double the taste of the food The internal temperature of the rice cooker can be accurately measured, and this allows any kind of cooking to be cooked accurately.

1 is a perspective view of an electric pressure cooker according to the present invention,

2 is a cross-sectional view of the electric pressure cooker according to the present invention,

3 is a detailed cross-sectional view of portion A of FIG. 1 according to the present invention;

4 is a perspective view of another embodiment of the electric pressure cooker according to the present invention.

* Description of the symbols for the main parts of the drawings *

1 --- electric pressure cooker, 10 --- housing,

20 --- lid, 21,91 --- heat resistant plate,

22 --- lid outer shell, 23 --- lid inner shell,

24 --- pressure packing, 30 --- high frequency generator,

31 --- magnetron, 32 --- high voltage transformer,

40 --- control box, 41 --- control panel,

50 --- cooking vessel, 51 --- sheath,

60 --- pressure adjustment weight, 70 --- antenna cap,

80 --- temperature sensor, 81 --- cooling fan,

82 --- Speakers.

The present invention for achieving the above object in the electric pressure cooker heated by a hot plate and a heating wire, a control box having an external control unit for setting the operation control and heating time, heating conditions, etc. on one side A housing; A pressure envelope formed of a conductive material and formed by penetrating the bottom surface thereof; A cooking vessel made of a size enough to be inserted into an inner wall of the outer shell and made of a non-conductive material; An antenna cap positioned within the through portion of the shell and formed to be interviewed under the bottom surface of the cooking vessel, the antenna cap being dug in a semicircle below the bottom; A high frequency generator positioned below the antenna cap to scan high frequencies into the cooking vessel; The rice cooker is opened and closed with a heat-resistant plate made of a conductive material located inside, a lid inner plate and a lid outer plate respectively installed at the lower and upper portions of the heat-resistant plate, and a pressure packing to prevent pressure leakage between the lid and the cooking vessel. A lid formed; A pressure regulating weight which is formed at the center portion between the lid outer plate and the lid inner plate to maintain the maximum pressure of the cooking vessel at 0.8kgf / cm 2 and raise the internal temperature to 116 ° C. during cooking; It is provided with a bottom portion of the cooking vessel characterized in that consisting of a temperature sensor for accurately measuring the temperature in the cooking vessel.

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

1 is a perspective view of an electric pressure cooker according to the present invention, Figure 2 is a cross-sectional view of the electric pressure cooker according to the present invention. As shown, the housing 10 having a control box 40 having an external control unit 41 for setting the operation control and heating time, heating conditions and the like on one side; A pressure shell 51 made of a conductive material and formed by penetrating the bottom surface thereof; A cooking vessel 50 made of a size enough to be inserted into an inner wall of the outer shell and made of a non-conductive material; An antenna cap (70) formed in the through portion of the shell (51) to be interviewed under the bottom surface of the cooking vessel (50), the bottom of which being dug into a semi-circular portion (71); A high frequency generator (30) positioned below the antenna cap to scan high frequencies into the cooking vessel (50); Located inside the lid and between the heat-resistant plate 21 made of a conductive material, the lid inner plate 23 and the lid outer plate 22 and the lid and the cooking vessel 50 are respectively installed on the lower and upper portion of the heat resistant plate A lid 20 formed to be opened and closed while being made of a pressure packing 24 to prevent a pressure leak from the lid; The pressure adjustment weight which is formed at the center between the lid outer plate 22 and the lid inner plate 23 to maintain the maximum pressure of the cooking vessel 50 at 0.8kgf / cm 2 may raise the internal temperature to 116 ° C. when cooking ( 60); consists of.

Here, the cooking vessel 50 may be made of a material such as non-conducting plastic resin, glass, ceramics, and in the case of a plastic resin material, it should be a thermosetting resin that does not cause deformation even at high temperatures. The pressure shell 51 and the heat-resistant plates 21 and 91 may be made of a conductive material such as steel, stainless steel, or aluminum to block high frequency injected into the rice cooker from the high frequency generator 30 to the outside of the rice cooker. Will be. In addition, the bottom portion of the cooking vessel 50 is provided with a temperature sensor 80 to accurately measure the temperature in the cooking vessel 50, based on this temperature, the control unit 41 to control the food accurately to cook You can do it.

On the other hand, the lower side of the housing 10 is provided with a cooling fan 81 wired with the control box 40 to discharge the internal heat generated from the high frequency generator 30 to the outside, the lower end of the housing 10 Another side portion is provided with a control box 40 and a speaker 82 wired to be able to deliver various sounds and sounds, such as buzzer sound, effect sound, etc. by the operation of the control unit 41.

The high frequency generator 30 is a high voltage transformer 32 for generating electricity of a high voltage by receiving power from a power supply device, and a magnetron 31 disposed with the high voltage transformer to receive a high voltage of the high voltage transformer to generate a high frequency. Is provided.

As shown in detail in FIG. 3, an upper end of the outer shell 51 is formed with a stepped locking jaw 51-1, and an upper end of the cooking vessel 50 is provided at the locking jaw 51-1. It is provided with a protrusion 50-1 protruding outward so that it can be lifted up and formed in a cross-sectional shape of the letter 'c'. Therefore, while the cooking vessel 50 is fitted to the outer shell 51, the projection 50-1 of the cooking vessel 50 is caught by the engaging jaw 51-1 of the outer shell 51.

In addition, as the semi-circular portion 71 is formed in the antenna cap 70 sandwiched between the bottom surface of the cooking vessel 50 and the top surface of the outer shell 51, the magnetron 31 of the high-frequency generator 30 The generated high frequency is evenly scanned throughout the cooking object contained in the cooking container 50 so that the temperature of the upper and lower portions of the cooking object is substantially constant.

Preferably, the electric pressure cooker of the present invention forms a pressure regulator 25 on the lid 20 in a rotary slider type or a lever type so as to prevent the leakage of the first steam to maintain a constant pressure cooking vessel 50 It will seal the inside.

Reference numeral 90 is a pedestal is installed on the lower surface of the housing (10). The pedestal is preferably made of a material which can bear the entire weight of the electric pressure cooker 1 and does not damage the floor on which the electric pressure cooker 1 is placed.

4 is a perspective view of another embodiment of the electric pressure cooker according to the present invention. As shown, a pressure regulator (60 ') is installed in the center of the lid 20, the pressure regulator (60') is a pressure to be interviewed with the oblique portion of the first support portion 63 is formed hole The protrusion is provided with a pressure regulator (62) wound around the coil spring on the body, and the rotation is possible to compress the coil spring wound around the pressure regulator (62) step by step, thereby cooking The handle 61 and the second support 64 to secure the first support 63 in close contact with the lid endothelial 40 are provided to be able to adjust the maximum pressure in the container 50 in steps.

Therefore, the pressure generated in the cooking vessel 50 by the heat heated by the ultra-high frequency generated in the magnetron of the high frequency generator 30 is tolerated by the elastic force of the coil spring of the pressure regulator 62, but the internal pressure gradually increases. When it is increased to overcome the elastic force of the coil spring, the pressure regulator 62 is separated from the oblique portion of the first support portion 63 so that the air or steam of the cooking vessel 50 to the outside through the air outlet of the handle 61 Will leak.

Therefore, the pressure adjusting device 60 is set to turn the handle 61 to the right to turn the handle to high pressure when making the rice cooked at a relatively high pressure, cooking vessel 50 as described above The maximum internal pressure inside is maintained high, keeping the internal temperature at 120 ℃ or higher, thus making the waxy rice.

In addition, when cooking rice cooked at a normal pressure (half pressure rice = cauldron), if the knob 61 is turned halfway to the right to set the handle to medium pressure, cooking vessel as described above The maximum internal pressure in the 50 is properly maintained so that the internal temperature is maintained at 110 ° C., thus making a semi-pressure rice.

On the other hand, when cooking at a relatively low pressure, that is, cooking rice, such as cooked in a normal pot, when turning the handle 61 to the left to set the handle to low pressure, cooking vessel as described above The maximum internal pressure in the 50 can be kept low, so that the internal temperature can be maintained at 100 ° C. or lower to make mill rice.

Hereinafter, the operation of the electric pressure cooker according to the present invention will be described.

First, if you want to cook with an electric pressure cooker according to the present invention, put the object to be cooked in the cooking vessel 50 and then close the lid 20. When operating the pressure regulator 25 to select the desired cooking by operating the control unit 41 of the control box 40 in the initial pressure state, the high frequency generator 30 is supplied with power to the high frequency generator 30. A high frequency is generated, and the high frequency uniformly scans the cooking object contained in the cooking container 50 through the antenna cap 70, thereby cooking while the cooking object is heated. At this time, the temperature sensor 80 measures the temperature in the cooker and transmits the measured temperature to the control box 40, the control box received this signal to control the operation of the high-frequency generator 30 according to the set conditions while cooking Will complete. Then, the button B is operated to open the lid 20. Subsequently, the cooked food container 50 containing the completed food may be taken out to consume the completed food.

Here, the high frequency generator 30 evenly scans the high frequency into the cooking vessel 50 through the semi-circular portion 71 of the antenna cap 70, the high frequency is scanned evenly to the cooking object contained in the cooking vessel 50. It can be.

In addition, as the high frequency generator 30 is used as a heat source, the cooking vessel 50 in which the cooking object is contained can be used as a non-conductive material. Therefore, the part cost is reduced by not having to coat the inner surface of the cooking vessel separately, and heat loss is reduced by directly heating the cooking object through the conductor, thereby reducing the rated power consumption.

And when cooking the food cut by the electric pressure cooker of the present invention, while preventing the water vapor to leak to the outside due to the accurate temperature measurement, the nutrition of the food is prevented and the taste of the food is improved.

According to the present invention described in detail as described above, by using the high-frequency generator to directly heat the cooking object contained in the cooking vessel, pressure cooking, the cooking vessel can be applied to non-conducting injection molding, glass, ceramics, etc. In addition, parts cost is reduced by not having to coat the inner surface of the cooking vessel separately, and heat loss is reduced by directly heating a cooking object through a conductor, thereby reducing the rated power consumption.

In addition, when you want to cook a continuous food, the external leakage of water vapor is prevented to increase the thermal efficiency, as well as to prevent the loss of nutrition of the cooked food and to double the taste of the food, the temperature inside the cooker Can be measured accurately and this has the effect of accurately cooking any kind of dish.

Claims (5)

In an electric pressure cooker heated by a hot plate and a hot wire, a housing having a control box 40 having an external control unit 41 for setting operation control and heating time, heating conditions, and the like on one side ( 10); A pressure shell 51 made of a conductive material and formed by penetrating the bottom surface thereof; A cooking vessel 50 made of a size enough to be inserted into an inner wall of the outer shell and made of a non-conductive material; An antenna cap (70) formed in the through portion of the shell (51) to be interviewed under the bottom surface of the cooking vessel (50), the bottom of which being dug into a semi-circular portion (71); A high frequency generator (30) positioned below the antenna cap to scan high frequencies into the cooking vessel (50); Between the lid and the cooking vessel 50, the heat-resistant plate 21 made of a conductive material located inside the lid, and the pressure lid inner plate 23 and the lid outer plate 22 respectively installed on the lower and upper portions of the heat-resistant plate. A lid 20 formed to be opened and closed while being made of a pressure packing 24 to prevent a pressure leak from the lid; The pressure adjustment weight which is formed at the center between the lid outer plate 22 and the lid inner plate 23 to maintain the maximum pressure of the cooking vessel 50 at 0.8kgf / cm 2 may raise the internal temperature to 116 ° C. when cooking ( 60); An electric pressure cooker having a high-frequency generator, characterized in that consisting of; temperature sensing sensor 80 is provided on the bottom of the cooking vessel 50 to accurately measure the temperature in the cooking vessel 50. (delete) According to claim 1, wherein the upper end of the outer shell 51 is formed with a stepped locking jaw, the upper end of the cooking vessel 50 is formed with a projection end outward so as to be caught on the engaging jaw the outer shell 51 The cooking vessel 50 is inserted into the electric pressure cooker having a high frequency generator, characterized in that the projection end of the cooking vessel 50 is caught on the locking jaw of the outer shell (51). (delete) (delete)