JPH0642761A - Cooking apparatus - Google Patents

Abstract

PURPOSE:To obtain a cooking apparatus in which cooking at a high speed is realized and an increase in a cooking category is realized by heating a removable oven tray in the apparatus such as an oven range, etc. CONSTITUTION:The cooking apparatus comprises an oven 5 for containing food, a removable oven tray 52 provided in the oven, a heat generator 57 buried in the tray 52, and power supply means 56 for supplying power to the generator. Since the tray 52 is directly heated in this structure, heating and cooling of food can be expedited, the range of the cooking is increased, and its operability can be largely improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to oven heating of food,
The present invention relates to a heating / cooking device such as an oven for grill heating or dielectric heating.

[0002]

2. Description of the Related Art Heretofore, as a cooking apparatus such as an oven, the one having a structure shown in FIG. 9 has been put into practical use.

FIG. 9 is a sectional view showing the structure of an oven range. In the figure, a turntable is provided inside the housing 1.
An electric wave for inductive heating generated from a magnetron 6 in the oven 5 in which the food 4 placed on the table 3 for placing food on the bull 2 is stored A waveguide 7 for guiding, a power converter 8 for supplying high-frequency power to the magnetron 6, a magnetron 6, a power converter 8, a cooling fan 9 for cooling the housing 1 and the like are provided. Cooling fan 9
The cooling air flows through the housing 1 as shown by the arrow in the figure to cool the body to be cooled. Further, 10 is a turntable motor.

In the oven 5, flat heater units 11 and 12 are provided on the upper surface and the lower surface, respectively, for performing the oven heating or the grill heating. The heat insulating materials 13, 14, 15, 16 prevent the heating energy supplied from the flat heater units 11, 12 to the oven 5 from being dissipated to the outside, and increase the heating efficiency. It works.

FIG. 10 is an electric circuit diagram of this open range, and those having the same reference numerals as those in FIG. 9 are corresponding components.

The oven range receives electric power from a commercial power source 20, and is controlled by a control unit 21 including a microcomputer and the like. That is, the control unit 21
Control circuit 2 for relay contacts 22 to 26 and power converter 8
By controlling 7 or the like, an oven cooking function is realized. The power converter 8 includes a diode bridge 28, a choke coil 29, capacitors 30, and 3.
1. An inverter circuit including a rectifying circuit including a step-up transformer 32, a transistor 33, and a diode 34, a high-voltage rectifying circuit including a capacitor 35 and diodes 36 and 37, current transformers 38 and 39, a capacitor 40, etc. The magnetron 6 is supplied with high-voltage direct-current power and cathode heating hitter power.

With this structure, the food 4 is heated by the heating energy of the flat heater units 11 and 12.
Bun heating and grill heating were possible, and combined heating with dielectric heating by the radio wave generated by the magnetron 6 was also possible if necessary.

[0008]

However, such a conventional high-frequency heating apparatus, in particular, when supplying radiant energy or convective energy by convective air heating into the oven by a flat heater unit, Due to the structure, there are drawbacks such that the rising speed of the temperature in the oven becomes slow, or the heating efficiency becomes inevitably low. This was based on the structure of the flat heater unit as shown in FIG.

FIG. 11 is a diagram showing an example of a detailed structure of the oven wall 5, the heater unit 11, and the heat insulating material 13.
In the figure, between the oven wall 5 and the heat insulating material 13, a flat heater unit 11 including a heating element 40 made of nichrome wire or the like, and electrical insulators 41 and 42 sandwiching the heating element 40.
Is provided. Therefore, the heat energy generated by the heating element 40 is turned on via the electric insulator 41 having the thickness t.
It was transmitted to the bun wall 5. This electrical insulator 4
For example, when the commercial power source 20 in FIG. 10 has a voltage of 100 V, 1 must have sufficient withstand voltage performance against that voltage, and if it is 200 V, a higher voltage of 200 V is required.
The pressure resistance performance of was required. Therefore, the heat energy generated by the heating element 40 is transmitted to the oven wall 5 and also to the electrical insulator 42, until the electrical insulator 42 and the heat insulating material 13 reach thermal equilibrium. , The thermal energy had to be transferred to the oven wall 5 and, at the same time, to the heat insulating material 13 on the opposite side. That is, since the electrical insulators 41 and 42 have the same electrical performance, they must have the same thermal performance. Therefore, the electrical insulators 41 and 42 are opposite to the oven wall 5 (i.e., the oven wall 5). The heat energy of the heating element 40 is dissipated toward the outside), and the rising speed of the temperature of the air in the oven and the temperature of the inner surface of the oven wall decreases, and the temperatures reached by them are reduced. There was an inconvenience that it could not be increased. For this reason, not only the heating efficiency is lowered, but also the outer wall temperature of the casing 1 of the oven range becomes high, so that it cannot be installed as if it was in contact with the wall of the room, etc., or the installation conditions are restricted, or There is a problem that there is a risk of being burned by touching the outer wall of the housing 1.

The present invention solves the above problems, and an object of the present invention is to provide a structure capable of efficiently heating and cooking in a short time.

[0011]

The present invention has the following constitution in order to solve the above problems. That is,
An oven for storing food, an freely removable oven plate provided in the oven, a heating element embedded in the oven dish, and a power supply for supplying power to the heating element. And means.

Further, the power receiving unit for supplying power to the heating element is turned on.
The power receiving section and the power supply means are connected to each other by a detachable structure, and the power receiving section and the power supply means are electrically connected by the installation operation of the oven plate in the oven. It is configured to be electrically connected.

Further, the power receiving portion is provided with a projecting power receiving contact terminal, the power supply means is provided with a supply contact terminal, and
The supply contact terminal is provided at the installation position of the oven plate on the wall surface of the oven.

Further, the contact portion of the supply contact terminal is held by a support having elasticity.

Further, a terminal protection portion for covering the supply contact terminal is provided at or near the oven wall, an oven plate is installed in the oven, and the power receiving contact terminal is inserted to protect the terminal. A portion is opened to connect the power receiving contact terminal and the supply contact terminal.

Further, the power supply means includes an induction coil, the induction coil is provided in the vicinity of the oven side wall or the upper and lower walls, and the induction coil which receives the magnetic flux generated by the induction coil is the oven dish. And is configured to supply the electric power induced in the induced coil to the heating element.

Further, the high frequency power converter is provided in the power supply means, and the power of the commercial power source, the generator or the battery is converted into the high frequency power and supplied to the induction coil.

Further, when at least one of the induction coil and the induced coil is configured to include a magnetic core and the oven plate is installed in the oven, the induction coil and the induced coil are magnetized by the magnetic core. It is configured to realize a physical combination.

Further, the oven plate is made of an insulating material such as ceramic, and a band-shaped or linear heating element is embedded in the oven plate.

Further, a conductive material is arranged at least on the upper surface of the oven dish, and the upper surface of the oven dish is made to have substantially the same electric potential.

[0021]

By providing a heating element embedded in a freely removable oven plate provided inside the oven and power supply means for supplying electric power to the heating element, the oven dish itself can be directly mounted. The heating greatly speeds up the cooking of food, and it also makes it possible to heat food placed on an oven dish at high temperature with relatively low power. Therefore, the heating of the oven plate enables heating cooking which is difficult with the conventional oven such as iron plate cooking.
Further, since the food can be moved to the table as it is in the heated oven plate, it can be used as a large plate for the table which can keep the food warm.

Further, the connection structure between the power receiving portion provided in the oven dish and the power supply means is configured to be detachable, and the power receiving unit is connected to the power receiving portion by the installation operation of the oven dish in the oven. Due to the configuration in which the power supply means is electrically connected,
The oven plate can be easily put in and taken out of the oven, and the oven plate can be heated automatically by the user without being aware of the electrical connection.

Further, the projecting power receiving contact terminal is provided on the power receiving unit, the power supplying means is provided with the supply contact terminal, and the supply contact terminal is provided at the position of the oven plate on the wall surface of the oven. -It is intended to realize a structure in which electric connection for surely supplying electric power to the oven plate can be realized simply by installing the oven plate in the oven.

Furthermore, the contact portion of the supply contact terminal is held by the elastic support, so that the supply contact terminal and the power receiving contact can be made only by the operation of the user installing the oven plate in the oven. The contact pressure of the electric contact of the terminal is guaranteed to be equal to or higher than a required predetermined pressure value to realize a highly reliable contact structure.

Further, the terminal protection portion is provided at or near the wall of the oven, the oven plate is installed in the oven, and the power receiving contact terminal is inserted, so that the terminal protection portion is opened. Since the power receiving contact terminal and the supply contact terminal are connected to each other, the portion of the supply contact terminal is reliably protected when not in use, so that the contact terminal can be used when cooking without using an oven dish. This prevents the parts from getting dirty and realizes high reliability.

Further, the power supply means includes an induction coil, the induction coil is provided in the vicinity of the oven side wall or the upper and lower walls, and the induction coil receiving the magnetic flux generated by the induction coil is the oven dish. By providing the heating element with the electric power induced in the induction coil, the electric power is supplied to the heating element of the oven dish without using an electrical contact terminal. Therefore,
The oven plate has an appearance that is free of protrusions such as electrical contacts, but it can be heated by a heating element. It realizes speed-up and enables cooking which is difficult with conventional ovens such as cooking with iron plate.

Furthermore, by providing a high frequency power converter in the power supply means and converting the power of the commercial power source, the generator or the battery into the high frequency power and supplying the high frequency power to the induction coil, the induction coil or the induction coil. The structure of (3) is made small and compact, and an oven plate which is compact and in which a heating element can be embedded is realized. Further, by controlling the operating state of the high frequency power converter, it is possible to easily adjust the power supplied to the heating element of the oven dish.

Furthermore, when at least one of the induction coil and the induced coil is configured to include a magnetic core and the oven plate is installed in the oven, the induction coil and the induced coil are separated by the magnetic core. By adopting a configuration that realizes magnetic coupling, the leakage magnetic flux from both coils is suppressed to a small level, and the heating efficiency is prevented from lowering due to the heating of the oven wall or the like, and the abnormal temperature rise is prevented.

The oven plate is made of an insulating material such as ceramic, and the band-shaped or linear heating element is embedded in the oven plate, so that the heating element can be easily electrically insulated. , An oven plate with a simple structure can be realized. By properly selecting the material components such as ceramics, the wavelength of infrared rays radiated from the oven dish can be set to a value suitable for radiant heating of food.

In addition, at least the conductive material is arranged on the upper surface of the oven dish, and the upper surface of the oven dish is set to have substantially the same electric potential. As a boundary, the inside of the oven has a structure close to an electrical shield space to prevent leakage of radio waves from the inside of the oven to the outside. Therefore, the arrival of radio waves and the like from the inside of the oven to the heating element is prevented, and the dielectric heating and the induction heating are prevented.

[0031]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the construction of an embodiment of the present invention, in which the same reference numerals as those in FIG. 9 represent corresponding constituent elements.

In the figure, a high-frequency magnetic field generating means 50 is arranged on the upper wall of the oven wall 5 via a heat insulating member 13 substantially in parallel with the oven wall 5. A shielding means 51 is further arranged above the high-frequency magnetic field generating means 50 to prevent the high-frequency leakage magnetic field from heating the housing 1 and affecting unnecessary radiation noise to other electronic devices outside the oven range. is doing. The high frequency magnetic field generating means 50 receives high frequency power from the power converter 8 to heat the upper wall of the oven wall 5 to radiatively heat the food 4 from above.
The shielding means 51 is made of a non-magnetic material such as aluminum or a high magnetic permeability material such as ferrite.
The heating of the upper surface of the oven wall 5 may be such so-called induction heating or the conventional heater 11 as shown in FIG. 9, but with the configuration of FIG. 1, faster heating and high heat resistance and insulation are achieved. Oven wall top surface heating of the construction can be performed.

Reference numeral 52 is an oven plate which is constructed so as to be freely taken out from the oven 5, on which the food 4 is placed. 53 and 54 are induction coils 5 of the oven plate 52
5, which is an induction coil for inducing electric power to the power converter 5, and constitutes the power supply means 56 together with the power converter 8. When the oven plate 52 is installed in the upper installation position as shown in the figure, the induction coil 53 supplies power to the oven plate 5.
A high frequency power of, for example, 20 to 500 KHz is induced in the second induction coil 55. The output of the induction coil 53 is supplied to the heater 57 embedded in the oven dish 52 to heat the oven dish 52 itself. Also, the oven plate 52
Is installed in the lower installation position, the induction coil 54
Powered by.

FIG. 2 shows the structure of this oven plate 52.
It is a side view. As shown in the figure, the heater 57 is a thin ribbon-shaped or linear heating element, and is embedded in an oven plate 52 made of a ceramic having high thermal conductivity. The induced coil 55 is also embedded in one of the legs 58 of the oven dish 52 as shown. Therefore, the oven plate 52 has no electric contacts, and has a beautiful appearance, easy cleaning, easy handling such as installation in the oven 5, and high reliability.

FIG. 3 shows an induction coil 53 and an induction coil 55.
It is sectional drawing which shows the example of a more detailed implementation structure of this. The induction coil 53 is provided on both legs of the U-shaped ferrite core 59.
The two coils 60, 61 are electrically connected in series, and the terminal 6
The high frequency power from the power converter 8 is supplied between 3 and 64. These components are filled with a ceramic material to form the induction coil 53.
On the other hand, the induction coil 55 is also constructed in the same manner as the induction coil 53, and two coils 66 and 67 provided on both legs of the U-shaped ferrite core 65 are electrically connected in series, and a heater 57 is provided.
High frequency power is supplied to the heater 57 to heat the heater 57. When the oven plate 52 is installed in the oven 5, the ferrite cores 59 and 65 are positioned so as to face each other as shown in the figure, and the high frequency magnetic flux generated by the induction coil is applied to the induction coil. The magnetic flux is transmitted to the ferrite core 65 of 55 without generating a large leakage magnetic flux. Therefore, induction heating of the oven wall 5 and the like does not cause a decrease in efficiency, reliability, or safety. In this embodiment, the induction coil 53 and the induction coil 55 use cores 59 and 65, but a core (magnetic core) is not always necessary depending on the size and shape of these coils.
Particularly, if the frequency is high, a small coil can be used. Therefore, either one or both of the induction coil 53 and the induction coil 55 may be a simple air-core coil.

FIG. 4 is a sectional view showing another embodiment of the oven tray 52. In the figure, a ceramic oven plate 52
A thin aluminum layer 68 is provided on the upper surface of the by thermal spraying or baking. This aluminum layer 68 induces a high electric field in the heater 57 to generate a spark when the radio wave of the magnetron 6 in FIG. 1 is supplied into the oven 5 for dielectrically heating the food 4. The electric wave is substantially confined in the space above the oven plate 52 in the oven 5 and the food 4 is effectively dielectrically heated.

FIG. 5 is a three-view drawing showing still another embodiment of the oven plate 52. The heater 57 is a power receiving contact terminal 6
9 and 70 are directly connected to the power receiving contact terminals 69 and 7
Between 0, commercial power is supplied from power supply means (not shown) including a switch circuit and the like.

FIGS. 6A and 6B show the oven plate 5 of FIG.
2 is a partial front view and a partial side view in which 2 is installed in an oven 5. FIG. As shown in FIG. 8B, the power receiving contact terminals 69 and 70 are configured to push the terminal protection portion 72 open and project into the opening 71 of the back wall of the oven 5, and have elastic leaf spring-like supply contact terminals. It comes in contact with 73 and 74.
The supply contact terminals 73 and 74 are configured to supply commercial power from a power supply means 75 including a switch circuit and the like.

FIG. 7 is a sectional view showing a more detailed embodiment of the power receiving contact terminals 69, 70, the supply contact terminals 73, 74, and the terminal protection portion 72. The supply contact terminals 73 and 74 are composed of a leaf spring portion 76 and a contact portion 77, and are fixed to a terminal block 78 made of an insulating material such as ceramic. Power receiving contact terminal 69,
When the movable portion 79 of the terminal protection portion 72 is inserted by pushing open the movable portion 79 from the opening portion 71, the leaf spring 76 is pushed and bent to come into contact with the movable portion 79 as shown in FIG. It is a configuration that guarantees the required value or more. The movable portion 79 has a tip end portion 80 made of an insulating material and has a power receiving contact terminal 6
The insulation between the movable parts 79 and 9 and 70 is secured. Also,
A compression spring 82 is provided above the movable portion 79 between the movable portion 79 and the fixed cover 81. Therefore, when the oven plate 52 is removed from the oven 5, the opening 71 of the oven wall 5 is closed by the movable portion 79, and the supply contact terminal 7 is closed.
This protects the parts 3 and 74 from heat in the oven 5 and dirty gas. Further, when the electric wave is supplied from the magnetron 6 in FIG.
Prevents radio waves from leaking from.

The embodiment shown in FIGS. 5 to 7 requires a power receiving contact terminal and a supply contact terminal as compared with the embodiment of FIG. 1, but the power supply means does not require the power converter 8. Since it can be configured with a simple switch circuit, it has a feature that the electrical circuit configuration is simple. Further, it goes without saying that various implementation bodies can be used for the method of configuring both contact terminals.

FIG. 8 is a circuit diagram of the heating and cooking apparatus of FIG. 1, and those having the same reference numerals as those in FIGS. 1 and 10 are corresponding components.

In FIG. 8, the power converter 8 comprises a transistor 33 and a transformer 32 which constitute the power converter of FIG.
It has a second inverter circuit equivalent to the inverter circuit including the above. The second inverter circuit is the control unit 2
The electric power is received by the relay contact 90 controlled by 1.
A high frequency switching circuit including a diode bridge 91, an inductor 92, capacitors 93 and 94, a transistor 95, a diode 96, a control circuit 97, and a current transformer 98. The heating coil 50, which is a high-frequency magnetic field generating means on the upper surface of the oven 5, has a relay contact 99.
When is closed, high frequency current is supplied. The induction coil 53 that supplies high-frequency power to the induction coil (not shown) of the oven dish 52 is configured to supply high-frequency current when the relay contact 100 is closed. With such a configuration, the heating coil 50 and the induction coil 53 on the upper surface of the oven can be operated simultaneously or by switching with one inverter circuit to perform heating and cooking. Also,
At the same time, the dielectric heating cooking by the magnetron 6 can be switched or simultaneously performed with the heating operation by the heating coil.

As described above, in the oven range of FIG. 1 having the oven dish 52 of the present invention, the radiant heat from the upper wall of the oven 5 heated by the high frequency magnetic field generating means 50 is strong. In the case of cooking that requires cooking (grill cooking), the oven plate 52 is installed in the upper stage as shown in FIG. 1 and is cooked at a relatively low temperature (about 150 to 200 ° C.) like cake cooking. In the case of bun cooking, the oven plate 52 can be installed in the lower stage for cooking. The oven range of the present invention has a configuration in which an oven dish on which food is placed is directly heated. Therefore, the food is not only heated by the temperature rise of the air in the oven 5 and radiated from the upper surface of the oven (at a position far from the food), but also the oven plate 52 close to the food.
Heated by. Therefore, the heating speed of food is significantly faster than that of the conventional oven. According to the experiments conducted by the inventors, the heating speed of the oven of FIG. 1 or 2 in comparison with the conventional oven of FIG. 9 is reduced by 30% to 70% depending on the food. It was That is, according to foods, it is possible to realize an oven range in which speed cooking can be performed in the following short time.

Further, high-temperature heating cooking (for example, hamburg) such as frying pan cooking, which has been difficult in the past, can be easily performed. In addition, since cooking in which the oil is scattered is possible in the oven, a new heating cooker that does not pollute the kitchen can be realized.

Furthermore, since the oven plate 52 can be easily taken out from the oven, it is very easy to change the installation position and clean it. Further, after cooking is completed, it can be easily carried as it is to a dining table or the like, and a new cooking device directly connected to the dining table can be realized, and since the oven plate is heated, it has a heat retaining effect.

In this way, the oven plate 52 and the oven 5
By combining and controlling the heating means (high-frequency magnetic field generating means) 50 on the upper surface of the and the magnetron 6 to heat and cook the food, the cooking speed is faster and a new type of cooking that was difficult in the past. It is possible to realize a cooking device capable of

[0048]

As described above, the heating and cooking device of the present invention has the following effects.

It is possible to directly heat the freely removable oven plate provided in the oven to speed up the cooking of food significantly, and at the same time, place the food placed on the oven plate. This makes it possible to heat the steel at a higher temperature than before with relatively low power consumption. Therefore, the heating of the oven plate enables heating cooking which is difficult with the conventional oven such as iron plate cooking. Also, since you can move food to the dining table with the heated oven plate,
It is possible to provide a heating and cooking device that can be used as a large plate for a table that can keep food warm and can be cleaned very easily.

Further, the detachable connection structure between the power receiving portion of the oven dish and the power supply means and the electrical connection structure by the installation operation of the oven dish facilitates the taking in and out of the oven dish, and (EN) It is possible to provide a heating and cooking apparatus that can be electrically connected automatically, has a very high usability and a high heating speed, and has a greatly expanded cooking category.

Furthermore, the power receiving contact terminal and the supply contact terminal provided at the oven plate installation position enable reliable and easy electrical connection only by installing the oven plate, and therefore, it is very easy to use. It is possible to provide a heating and cooking device that has a good heating speed and a greatly expanded cooking category.

Furthermore, the contact portion of the supply contact terminal is held by the elastic support so that the contact
It is possible to guarantee the contact pressure of the electrical contact above the required predetermined pressure value and realize the high reliability of the contact structure only by the operation of installing the pan plate, and therefore the reliability and the heating speed are very convenient and easy to use. It is possible to provide a heating / cooking device which has a high speed and has a significantly expanded cooking category.

Further, by providing a terminal protection portion having an automatic opening mechanism at or near the oven wall,
Prevents the contact terminals from being contaminated by heat and exhaust gas, and prevents radio waves from leaking, realizing high reliability and safety, and a cooking device with good usability and fast heating speed. Can be provided.

In addition, the induction coil and the induction coil of the oven plate supply electric power to the heating element, so that the oven plate has a shape with no protrusions such as electrical contacts. It can be realized, and it greatly speeds up the cooking based on the direct heating of the oven dish itself by the heating element, and enables the cooking that is difficult with conventional ovens such as iron plate cooking, and is easy to use. It is possible to provide a heating and cooking device with a quick heating speed.

Further, by providing a high frequency power converter in the power supply means to supply high frequency power to the induction coil, the structure of the induction coil and the induction coil can be made compact and compact, and the heating element can be embedded in a compact size. It is possible to provide a simple cooking oven that is easy to use and has a fast heating speed. Also, by controlling the operating state of the high-frequency power converter, the power supplied to the heating element of the oven dish can be easily adjusted, and a heating and cooking device with excellent usability and cooking performance can be provided. is there.

Furthermore, by forming the coupling between the induction coil and the induction coil by including the magnetic core, the leakage magnetic flux from both coils is suppressed to a small level, and the heating efficiency is lowered due to the heating of the oven wall or the like and its abnormal temperature. It is possible to provide a heating and cooking device which prevents the rise of the temperature, and has a quick heating cooking speed and is capable of performing iron plate cooking and the like and has excellent usability and cooking performance.

By constructing the oven dish with an insulating material such as ceramic and embedding a band-shaped or linear heating element, the oven dish can be electrically insulated and manufactured easily, and the heating and cooking speed can be improved. It is possible to provide a heating and cooking device that is fast and can be used for cooking on an iron plate and has excellent usability and cooking performance. By appropriately selecting the material components such as ceramics, it is possible to provide a heating and cooking device in which the wavelength of infrared rays radiated from an oven dish is set to a value suitable for radiant heating of food.

Further, by arranging the conductive material at least on the upper surface of the oven dish, the inside of the oven is close to an electrical shield space with the upper surface of the oven dish as a boundary. In addition to preventing the leakage of radio waves to the outside, it also prevents the radio waves from reaching the heating element and prevents dielectric heating and induction heating. Therefore, we provide a cooking device with high reliability that prevents the deterioration of reliability of the heating element and leakage of radio waves, realizes high reliability, and is fast in cooking speed and can also perform iron plate cooking etc. with excellent usability and cooking performance. It is possible.

[Brief description of drawings]

FIG. 1 is a sectional view showing the configuration of a heating and cooking apparatus according to an embodiment of the present invention.

FIG. 2 is a structural diagram of an embodiment of the oven plate of FIG.

FIG. 3 is a cross-sectional view of an example of the induction coil and the induction coil of the oven dish of FIG.

FIG. 4 is a sectional view of another embodiment of the oven dish of FIG.

FIG. 5 is a structural diagram of still another embodiment of the oven plate of FIG.

FIG. 6 is an electrical connection and mounting structure diagram of the oven plate of FIG. 5 during the oven mounting.

7 is a detailed structural diagram of an electric connection portion of the oven dish of FIG.

FIG. 8 is a circuit diagram of an example of the heating and cooking device of FIG.

FIG. 9 is a sectional view showing the configuration of a conventional heating and cooking device.

FIG. 10 is a circuit diagram of the conventional cooking device of FIG.

FIG. 11 is a sectional view of a heater portion of the heating and cooking device of FIG.

[Explanation of symbols]

 5 Oven (Oven Wall) 8 Power Converter (High Frequency Power Converter) 52 Oven Plate 53 Induction Coil 55 Power Receiver (Induced Coil) 56, 75 Power Supply Means 57 Heating Element 59, 65 Magnetic Core 68 Conductive material 69, 70 Power receiving contact terminal 72 Terminal protection part 73, 74 Supply contact terminal 76 Support

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Shibuya 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Kenji Yasui 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor Noriyuki Yoneno 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (10)

[Claims] 1. An oven for storing food, an freely removable oven plate provided in the oven, and the oven.
A heating and cooking device comprising a heating element embedded in a pan and a power supply means for supplying power to the heating element. 2. An electric power receiving portion for supplying electric power to a heating element is provided in an oven plate, and a connecting structure between the electric power receiving portion and the electric power supply means is detachably configured, and the oven plate is an oven. The cooking device according to claim 1, wherein the power receiving unit and the power supply unit are electrically connected by an installation operation inside. 3. A projecting power receiving contact terminal is provided on the power receiving portion, a power supplying contact terminal is provided on the power supplying means, and the power supplying contact terminal is provided at an oven plate installation position on an oven wall surface. The described cooking device. 4. The cooking device according to claim 3, wherein the contact portion of the supply contact terminal is held by a support having elasticity. 5. A terminal protection portion for covering the supply contact terminal is provided in or near the oven wall, and an oven tray is installed in the oven to insert the power receiving contact terminal, thereby protecting the terminal. The cooking device according to claim 3, wherein a portion is opened to connect the power receiving contact terminal and the supply contact terminal. 6. The power supply means includes an induction coil, the induction coil is provided near an oven side wall or upper and lower walls, and an induction coil for receiving a magnetic flux generated by the induction coil is an oven dish. The heating and cooking device according to claim 1, wherein the heating and cooking device is provided on the heating element and is configured to supply the electric power induced in the induced coil to the heating element. 7. A high frequency power converter is provided in the power supply means,
The heating and cooking device according to claim 6, wherein the electric power from the commercial power source, the generator or the battery is converted into high frequency electric power and supplied to the induction coil. 8. When at least one of the induction coil and the induced coil is configured to include a magnetic core and an oven plate is installed inside the oven, the induction coil and the induced coil are magnetized by the magnetic core. The cooking device according to claim 6, wherein the cooking device is configured to realize a physical coupling. 9. The cooking apparatus according to claim 1, wherein the oven dish is made of an insulating material such as ceramic, and a band-shaped or linear heating element is embedded in the oven dish. 10. The structure according to claim 1, wherein a conductive material is arranged on at least the upper surface of the oven dish, and the upper surface of the oven dish is made to have substantially the same electric potential.
The described cooking device.