KR0120620Y1 - High frequency cooking apparatus - Google Patents

Abstract

The present invention relates to ultra-high frequency cooking autonomous, in particular, because the heat transfer plate crisis open, the operation unit for inputting a user's operation command in order to enable a large amount of cooking without limiting the size of the container containing the cooked food And a control means 24 for receiving a user's operation command signal output from the operation unit 6 and outputting a control signal, and a drive for receiving a control signal output from the control means 24 and outputting a drive signal. The heat generating element 36 which receives the means 26, the drive signal output from the said drive means 26, receives the microwave which oscillates at an ultra-high frequency, and receives the heat | fever which generate | occur | produces heat from the heat generating element 36, and The temperature sensor 60 outputs a temperature signal to the control means 24 so that the control means 24 controls the amount of heat generated from the heating element 36. Characterized in that eojin.

Description

Microwave Cooking Device

1 is a block diagram of a microwave cooking apparatus according to an embodiment of the present invention,

2 is an external perspective view of an ultra-high frequency cooking apparatus according to a temporary example of the present invention,

3 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for main parts of the drawings

6: Control panel 8: Start button

10: operation stop button 12: key input means

14, 16: cooking temperature setting button 18: setting temperature display panel

20: cooking temperature setting and cooking temperature display means

22: Setting cooking time and cooking elapsed time display panel

24: control means 26: drive means

28: housing 30: support

32: magnetron 33: electric wire

34: support panel 36: heating element

40: waveguide 42: feeder

44: holder 46: top

48: container 50: cooking food

52, 64: heat transfer plate 54: heat insulation plate

56: heat insulating means 58: microwave shield member

60: temperature sensor 66, 68: heat transfer plate selection button

δ: laminated thickness f: frequency of the microwave

Permeability of the heating element in vacuum : Specific Permeability in Vacuum of Heating Element

σ: conductivity of the heating element

The present invention relates to a microwave cooking apparatus capable of cooking food by the heat conduction of the heating element by heating the heating element by the microwave irradiation.

Gas stove which is widely used in general households has the problem of gas leakage and control of thermal power can only be done in 2-3 stages. Therefore, it is not possible to precisely control the thermal power. There was a problem that is harmful to the human body.

On the other hand, in the case of microwave oven using the ultra-high frequency heating principle, there was a problem that the size of the container when cooking food was limited, and the cooking should be done with the door of the microwave oven closed so that the food cannot be returned during heating, and thus fine cooking is possible. There was a problem that can not.

Therefore, the present invention has been made to solve the above problems, the purpose of the present invention is to control the thermal power by controlling the thermal power in multiple stages, the gas is not leaked by cooking using ultra-high frequency is not harmful to the human body It is to provide a microwave cooking apparatus.

In addition, another object of the present invention is that the top of the heat transfer plate is open because the size of the container containing the cooked food that can be cooked can be cooked in a large amount, since the upper portion of the heat transfer plate is open The present invention provides a microwave cooking apparatus capable of refining food by returning food contained in a container during cooking.

In order to achieve the above object, the ultra-high frequency cooking apparatus according to the present invention includes an operation unit for inputting a user's operation command, control means for receiving a user's operation command signal output from the operation unit, and outputting a control signal from the control means; Drive means for receiving an output control signal and outputting a drive signal, a magnetron oscillating at a very high frequency by receiving the drive signal output from the drive means, a heating element for receiving heat generated by receiving the microwave output from the magnetron, and And a temperature sensor configured to receive heat generated from a heating element and output a temperature signal to the control means to control the amount of heat generated from the heating element.

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

FIG. 1 is a block diagram of a microwave cooking apparatus according to an embodiment of the present invention, and FIG. 2 is an external perspective view of the microwave cooking apparatus according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line A-A of FIG.

In Figs. 1 to 3, reference numeral 6 denotes an operation unit provided on the bottom of the housing 28 to input a user's operation command. The operation unit 6 comprises a key input means 12, a cooking temperature setting and cooking temperature display means 20, and a setting cooking time and cooking time display panel 22. The key input unit 12 selects an operation start button 8 for inputting an operation start command of the user, an operation stop button 10 for inputting the operation stop command, and a heat transfer plate 52, 64. Heat transfer plate selection buttons 66 and 68 are provided. In addition, the cooking temperature setting and cooking temperature display means 20 is a cooking temperature setting button (14, 16) for inputting a cooking temperature setting command of the user in multiple stages (for example, seven steps), and to display the set cooking temperature A set temperature display panel 22 is provided. In addition, the set cooking time and cooking elapsed time display panel 22 display a cooking time set by a user and display an elapsed time during actual cooking.

And, 24 is a control means for receiving a DC voltage of 5V output from the DC power supply means and receiving a user's operation command signal output from the operation unit 6 and outputting a control signal. The means consists of a microcomputer.

In addition, in the drawing, reference numeral 26 denotes a drive means for receiving an AC voltage of 220V output from an external AC power source and receiving a control signal output from the control means 24 and outputting an AC voltage of 4KV. to be.

The control means 24 and the drive means 26 are mounted in one frame and mounted on the support 30 in the housing 28.

And, 32 is a magnetron that receives the high voltage of 4KV output from the drive means 26 and oscillates at an ultra-high frequency of 30 ~ 300MHZ, the magnetron 32 is a wire 33 to the drive means 26 Are supported on the support panel 34.

At the end of the magnetron 32, an antenna cap 67 for outputting microwaves is provided.

The reference numeral 36 is a heating element that receives the microwaves output from the magnetron 32 through the waveguide 40, the feeding port 42, and the holder 44, and generates heat. ) Is composed of 50% of carbon and quartz in order to produce ultra high temperature (about 1000 ℃) within a few seconds (about 3 seconds).

On the other hand, the heating element 36 may be made by mixing carbon and perlite (PERLITE, pearlite) by 50%.

In addition, the holder 44 is made of quartz which is a good heat transfer material in order to easily transfer heat to the upper plate which will be described later. The holder 44 is formed in a cylindrical shape in which the upper and lower surfaces are sealed and hollow. It is.

The heating element 36 is enclosed in the holder 44 and sealed, and the stack thickness δ of the heating element 36 is such that the ultra-high frequency transmitted from the waveguide 40 is absorbed by the heating element 36. ,

(Where π is the circumference, f is the frequency [HZ] of the microwaves transmitted from the waveguide 40, Is the vacuum magnetic permeability (H / m) of the heating element 36, Is the specific permeability of the heating element 36 in vacuum, and sigma is the electrical conductivity of the heating element 36 / m)).

And, 46 is a top plate that receives the heat generated from the heating element 36 through the holder 44 and transfers the heat to the cooked food 50 in the container 48, the top plate 46 Is a heat transfer plate (52,64) formed in a position in close contact with the holder 44 in a size corresponding to the holder 44, and is integrally bonded to the heat transfer plate (52,64) and the heat transfer plate ( The heat dissipation plate 54 is formed of a heat insulating plate 54 which blocks heat emitted from the heat transfer plates 52 and 64 from being discharged to other than the upper surfaces of the heat transfer plates 52 and 64. The top plate 46 is tightly coupled to the holder 44 while being fixed to the upper side of the housing 28.

On the other hand, the heat insulating means 56 is installed around the holder 44 to block heat leaking from the holder 44 to the place other than the upper plate 46, and the heat insulating means 56 is insulated. It is made of materials.

And, the heat insulating means 56 is built in the microwave shield member 58, the microwave shield member 58 is around the holder 44 to block the microwaves leaking into the holder 36. It is installed.

Further, in the same drawing, the reference numeral 60 receives heat generated from the heating element 36 through the holder 44 and outputs the temperature signal to the control means 24 so that the control means 24 may perform the operation. A temperature sensor for controlling the amount of heat generated from the heating element (36), wherein the temperature sensor (60) is used to transmit the heating temperature of the heating element (36) in the holder (44) to the control means (24). The holder 44 is in contact with the microwave shielding member 58 and the heat insulating means 56.

Hereinafter, the effect of the ultra-high frequency cooking apparatus according to an embodiment of the present invention configured as described above will be described.

First, the user puts the cooked food 50 to be cooked in the container 48 to be cooked, and the container 48 is transferred to the heat transfer plate 52 of one of the plurality of heat transfer plates 52 and 64 of the upper plate 46. 64).

Next, when the user inserts the plug of the microwave cooking apparatus into an outlet, an AC voltage of 220 V is supplied to the DC power supply means and the driving means 26 from an external AC power source.

Next, a DC voltage of 5V is supplied from the DC power supply means to the control means 24, and the control means 24 is made operable.

Next, the user presses the heat transfer plate selection button 66 provided on the key input means 12 to select the heat transfer plates 52 and 64 on which the container 48 is placed, and then the user selects the cooking plates. The user inputs the desired cooking temperature to the control means 24 through the temperature setting buttons 14 and 16, and inputs the desired cooking preferences to the control means 24 through the key input means 12. do.

Next, the set cooking temperature is displayed on the set temperature display panel 22, and the set cooking time is displayed on the set cooking time and cooking elapsed time display panel 22.

Next, when the user presses the operation start button 8 of the key input means 12, a control signal is output from the control means 24 to the drive means 26.

Next, an AC voltage of 4 KV is output from the driving means 26, and the magnetron 32 oscillates at 30 to 300 MHZ.

Next, the microwave output from the magnetron 32 is transmitted to the heating element 36 through the waveguide 40, the feeder 42, and the holder 44.

Next, the heating element 36 generates heat at about 1000 ° C. in about 3 seconds so that the generated heat is transferred to the heat transfer plates 52 and 64 of the upper plate 46 via the upper surface of the holder 44. do.

Next, heat is transferred from the heat transfer plates 52 and 64 to the container 48, and heat is transferred to the cooked food 50 in the container 48 to cook the cooked food 50.

Meanwhile, heat is transferred from the heating element 36 to the temperature sensor 60 via the holder 44, and the temperature sensor 60 transmits a temperature signal corresponding to the heat to the control means 24. Supply.

Next, the control means 24 compares the temperature signal with a signal of the set cooking temperature input by the user to control the amount of heat generated by the heating element 36 corresponding to the set cooking temperature.

As described above, according to the ultra-high frequency cooking apparatus according to the present invention, since the heat transfer plate is open, the size of the container containing the cooked food that can be cooked is not limited, and thus a large amount of cooking is possible.

In addition, since the cooking temperature can be input in multiple stages (7 stages) through the cooking temperature setting button, it is possible to precisely adjust the thermal power to cook at a desired cooking temperature.

On the other hand, by cooking using ultra-high frequency gas is not leaked has a very excellent effect that is not harmful to the human body.

In addition, since the upper portion of the heat-heating plate is opened, the food contained in the container can be returned while cooking, and thus the cooking can be made fine.

Claims (6)

In the ultra-high frequency cooking apparatus, an operation unit (6) for inputting a user's operation command, control means (24) for receiving a user's operation command signal output from the operation unit (6) and generating a control signal, and the control A drive means 26 for receiving a control signal output from the means 24 and outputting a drive signal, a magnetron 32 for receiving a drive signal output from the drive means 26 and oscillating at an ultra-high frequency; The heating element 36 receives the microwaves output from the magnetron 32 and generates heat to cook the food 50, and receives the heat generated from the heating element 36 and outputs the temperature signal to the control means 24. Ultra-high frequency cooking apparatus, characterized in that the control means 24 is made of a temperature sensor 60 to control the amount of heat generated from the heating element (36). 2. The operation unit (6) according to claim 1, wherein the operation unit (6) includes an operation start button (8) for inputting an operation start command of the user, an operation stop button (8) for inputting an operation stop command of the user, and heat transfer plates (52, 64). Key input means 12 having heat transfer plate selection buttons 66 and 68 for selecting, cooking temperature setting buttons 14 and 16 for inputting a cooking temperature setting command of the user, and the set cooking time are displayed and are actually cooked. Ultra-high frequency cooking apparatus, characterized in that consisting of the set cooking time and the cooking elapsed time display panel 22 to display the elapsed time. The heating element (36) according to claim 1, wherein the heating element (36) is enclosed in the holder (44), and the laminated thickness (δ) of the heating element (36) is formed by the ultra-high frequency burned out of the waveguide (40). To be inhaled at all, (Where π is the circumference, f is the frequency [HZ] of the microwaves transmitted from the waveguide 40, Is the vacuum magnetic permeability (H / m) of the heating element 36, Is the specific permeability of the heating element 36 in vacuum, and σ is the conductivity of the heating element ( / m)) ultra-high frequency cooking apparatus characterized in that The ultra-high frequency cooking device according to claim 1, wherein the heating element (36) is made by mixing carbon and quartz by 50% so as to produce ultra high temperature within a few seconds. The ultra-high frequency cooking apparatus of claim 1, wherein the heating element (36) is formed by mixing carbon and perlite (PERLITE, pearlite) by 50% so as to produce ultra high temperature within a few seconds. The ultra-high abacus cooking apparatus according to claim 1, wherein the holder (44) is made of quartz which is a good heat transfer material.