KR20220153464A - Cooking apparatus - Google Patents

Abstract

The present invention relates to a cooking device, and more specifically includes: an inner pot with an open upper side; an outer pot located outside the inner pot and having an open upper side; a heating unit fixed to the outer pot and receiving electrical energy to heat the inner pot; a cover part located on the upper side of the inner pot and opening and closing an opening of the inner pot; and a hot air supply unit which is installed inside the cover and sucks in air from the inner pot and discharges the air to the inside of the inner pot. The present invention provides the cooking device capable of cooking food using hot air together with an induction heating method.

Description

Cooking device {COOKING APPARATUS}

The present invention relates to a cooking apparatus capable of heating food using an electromagnetic induction heating method and a convection heating method.

In general, an apparatus for automatically cooking food includes an inner pot containing food. Since the inner pot is heated by a heating device, food inside the inner pot is heated by a heat source while being cooked.

An outer pot is installed outside the inner pot, and an induction coil is disposed between the inner pot and the outer pot. The induction coil uses an electromagnetic induction heating method to heat the inner pot, so cooking is performed.

Conventionally, a pot for cooking food is heated only by an electromagnetic induction heating method. Therefore, there is a problem in that cooking using hot air, such as frying, cannot be made.

In addition, since food is cooked using a single heat source in the related art, the time required for cooking food increases.

In addition, in the related art, the induction coil is disposed at the lower end of the inner pot, and it takes time for heat to be transferred to the entire food.

The background art of the present invention is published in Korean Patent Laid-open Publication No. 10-2012-0052004 (published on May 23, 2012, title of the invention: rotary rice cooker using electromagnetic induction heating method).

An object of the present invention is to provide a cooking apparatus capable of cooking food using hot air together with an induction heating method.

Another object of the present invention is to provide a cooking apparatus capable of saving time required for cooking food by cooking food using a plurality of heat sources.

Another object of the present invention is to provide a cooking device capable of saving time required for heating food compared to a structure in which an induction coil is disposed at a lower end of an inner pot.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

The cooking apparatus according to the present invention for solving the above problems is technically characterized in that food is cooked using an electromagnetic induction heating method and a hot air heating method.

Specifically, a heating method of cooking food using an induced current that heats the inner pot using a magnetic field generated by a coil as a heat source, and a heating method of cooking food with hot air generated by the operation of the hot air supply unit and the heating unit can be used. .

In addition, the coil of the heating unit is characterized in that it is divided into a coil used in the induction heating method and a coil used in the hot air heating method.

Specifically, the first coil for heating the upper side of the inner pot functions to generate hot air, and the second coil for heating the lower side of the inner pot serves to cook food contained in the inner pot.

In addition, according to the present invention, food can be heated simultaneously using the electromagnetic induction heating method and the convection heating method.

In addition, the present invention is characterized in that a coil is installed in a shape surrounding the outer surface of the inner pot to heat the coil, so that the food in the inner pot is quickly heated compared to a configuration in which a heating unit is installed on the lower side of the inner pot.

A cooking apparatus according to an embodiment of the present invention includes an inner pot having an open top, an outer pot positioned outside the inner pot and having an open top, and a heating unit fixed to the outer pot and receiving electric energy to heat the inner pot; , It includes a cover part located on the upper side of the inner pot and opening and closing the open inlet of the inner pot, and a hot air supply part installed inside the cover part and sucking air in the inner pot and discharging the air to the inside of the inner pot.

A cooking apparatus according to an embodiment of the present invention includes an inner pot having an open top, an outer pot positioned outside the inner pot and having an open top, and a heating unit fixed to the outer pot and receiving electric energy to heat the inner pot; , It is installed in a shape surrounding the outer side of the outer pot and the heating part and is installed on the inside of the cover part and the cover part that opens and closes the upper side opening, and the cover part that opens and closes the inlet of the case part, and sucks air in the inner pot to supply air to the inside of the inner pot. It includes a hot air supply unit for discharging.

A cooking apparatus according to an embodiment of the present invention includes an inner pot having an open top, an outer pot positioned outside the inner pot and having an open top, and a heating unit fixed to the outer pot and receiving electric energy to heat the inner pot; , A case part installed in a shape surrounding the outer side of the outer pot and the heating part and having an upper side opened, and a case part fixed to the inside of the case part and connected to the inner pot through the lower part of the outer pot and generating rotational power to rotate the inner pot. A first driving unit, It includes a cover part that opens and closes the open inlet of the case part and a hot air supply part that is installed inside the cover part and sucks in air from the inner pot and discharges the air to the inside of the inner pot.

In addition, the heating unit includes a mounting bracket located outside the outer pot and a coil installed on the outer surface of the mounting bracket and generating a magnetic field to heat the inner pot.

In addition, the mounting bracket includes a bracket body formed in a shape corresponding to the outer surface of the outer pot and fixed to the outer side of the outer pot, a first protrusion protruding from the upper side of the bracket body in a lateral direction and restraining the movement of the coil, and a first protrusion. It is located on the lower side and includes a second protrusion that protrudes laterally from the bracket body to restrain the movement of the coil.

In addition, the coil includes a first coil installed between the first protrusion and the second protrusion, and a second coil installed below the second protrusion.

The cooking apparatus according to the present invention cooks food using both the induction heating method and the convection heating method, and thus saves time required for cooking the food.

In addition, since the present invention can cook food by heating the inner pot using an electromagnetic induction heating method and cook food by generating hot air, it is possible to cook various types of food, thereby improving consumer satisfaction.

In addition, in the present invention, the coil provided in the heating unit is divided into a first coil used for supplying hot air and a second coil used for heating food in the inner pot, so that electricity costs can be reduced.

In addition, since the mounting bracket according to the present invention is manufactured integrally using an insert injection method, production costs can be reduced.

In addition, since the heating unit according to the present invention heats the side surface of the inner pot, the heating area is increased compared to the method of heating the lower part of the inner pot, thereby saving time required for heating food.

In addition to the effects described above, specific effects of the present invention will be described together while explaining specific details for carrying out the present invention.

1 is a perspective view showing a cooking apparatus according to an embodiment of the present invention.
2 is a perspective view showing a state in which a heating unit is installed according to an embodiment of the present invention.
3 is an exploded perspective view of a cooking apparatus according to an embodiment of the present invention.
Figure 4 is a perspective view showing a state in which the outer pot and the heating unit are separated from the case unit according to an embodiment of the present invention.
5 is an exploded perspective view of a cover part and a hot air supply part according to an embodiment of the present invention.
6 is a perspective view showing a state in which a hot air supply unit is separated from a cover unit according to an embodiment of the present invention.
7 is a partial cross-sectional perspective view of a cooking apparatus according to an embodiment of the present invention.
8 is a cross-sectional view of a cooking apparatus according to an embodiment of the present invention.
9 is a partially cut away perspective view showing a state in which a first coil and a second coil are installed in a mounting bracket according to an embodiment of the present invention.
10 is a partially cut-away perspective view illustrating a state in which air discharged from a duct unit is heated according to an embodiment of the present invention.

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

1 is a perspective view showing a cooking apparatus 1 according to an embodiment of the present invention. As shown in FIG. 1, in the cooking apparatus 1 according to an embodiment of the present invention, the cover part 100, the case part 50, and the base part 70 form the outer shape of the cooking apparatus 1. do. The case portion 50 is positioned below the cover portion 100 , and the base portion 70 is positioned below the case portion 50 .

The outer sides of the cover part 100, the case part 50, and the base part 70 form a circular curved surface. The outer diameter of the case part 50 is larger than the outer diameter of the cover part 100 , and the outer diameter of the base part 70 is larger than the outer diameter of the case part 50 .

The outer shape of the cooking device 1 is a shape having a curved surface as a whole, and the outer shape may be formed in various shapes such as a circular shape, a cylindrical shape, and an elliptical shape.

Since the outer diameter of the cooking apparatus 1 according to an embodiment of the present invention gradually increases from the upper side toward the lower side, the cooking apparatus 1 can stably cook by preventing the cooking apparatus 1 from falling over. have. The cooking device 1 is formed in a substantially conical shape, and a cover part 100 is installed on the upper side to have a circular flat shape.

In this way, since the outer side of the cooking device 1 is provided with a curved surface, a beautiful sense of aesthetics can be provided.

2 is a perspective view showing a state in which the heating unit 40 is installed according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view of the cooking apparatus 1 according to an embodiment of the present invention.

2 and 3, the heating unit 40 is installed inside the case unit 50, and the cover unit 100 and the hot air supply unit 110 are installed on the upper side of the heating unit 40. . The heating unit 40 heats the inner pot 10 by induction. In addition, the air discharged from the hot air supply unit 110 is heated by the inner pot 10 heated by the heating unit 40 .

The heating unit 40 transfers electric energy to the inner pot 10, which is an induction-only container, using electromagnetic induction, and heats the food 120 on the principle that the resistance of the inner pot 10 becomes hot like a heating wire. A method in which the heating unit 40 heats the inner pot 10 is called induction heating.

When the heating unit 40 is operated by electromagnetic induction and current flows through the coil 41, a magnetic field is formed around the coil 41. A magnetic field affects the metal provided in the inner pot 10, which is a dedicated container, so that current flows through the inner pot 10.

The current flowing through the inner pot 10 meets the resistance of the metal and is converted into heat to heat the inner pot 10 . Since current is generated smoothly only when the magnetic field transmitted to the inner pot 10 is continuously changed, high-frequency current is used as electricity supplied to the coil 41 .

Depending on what kind of metal the inner pot 10 is made of, the degree to which the magnetic field is affected and the magnitude of the resistance vary. The inner pot 10, which is a dedicated container, is made of iron alloy and stainless steel so that heating can be performed quickly and easily under the influence of a magnetic field.

The inner pot 10 according to an embodiment of the present invention is made of an alloy including at least one of the STS300 series, the AL10 series, and the STS400 series.

4 is a perspective view showing a state in which the outer pot 30 and the heating unit 40 are separated from the case unit 50 according to an embodiment of the present invention.

3 and 4, the cooking apparatus 1 according to an embodiment of the present invention includes a cover part 100, an inner pot 10, an outer pot 30, a heating part 40, and a case part. (50), a cover part (100) and a hot air supply part (110). Also, the cooking apparatus 1 may further include at least one of the lifter 20, the first driving unit 60, the second driving unit 90, and the base unit 70.

The outer pot 30 is fixed inside the case part 50, and the inner pot 10 is rotatably installed inside the outer pot 30. A space may be formed between the inner pot 10 and the outer pot 30, and if necessary, the inner pot 10 and the outer pot 30 may be installed in close contact.

The inner pot 10 rotates by using the driving force of the first driving unit 60 installed at the lower part of the outer pot 30 . The upper side of the inner pot 10 is opened and closed by the cover part 100 . A lifter 20 is installed inside the inner pot 10 so that the food 120 can be quickly mixed well when cooking the food 120 . The lifter 20 is fixed inside the inner pot 10 and rotates together with the inner pot 10 .

Upper inlets of the case portion 50, the inner pot 10, and the outer pot 30 are open, and the inlets of the case portion 50 are opened and closed by the cover portion 100. The inner pot 10 is located inside the outer pot 30, and the cover part 100 is positioned on the open upper side of the inner pot 10.

A heating unit 40, which is a heating device, is installed in the outer pot 30 of the cooking device 1. The heating unit 40 operates in an induction method, and the coil 41 provided in the heating unit 40 is installed along the outer circumference of the outer pot 30 . The heating unit 40 is operated by application of power to heat the inner pot 10 .

As the material of the outer pot 30 according to an embodiment of the present invention, a heat-resistant reinforced plastic may be used. In addition, the material of the inner pot 10 according to an embodiment of the present invention may include a ferromagnetic material such as SUS430.

The cooking device 1 according to the present invention includes two power devices and provides an optimal cooking method using a motor according to the type of food 120 . A cooking apparatus 1 according to an embodiment of the present invention includes a first driving unit 60 and a second driving unit 90 .

The first driving unit 60 is installed at the center of the lower end of the outer pot 30, and the inner pot 10 can be rotated 360 degrees using a motor provided in the first driving unit 60.

In addition, the motor provided in the second driving unit 90 serves to tilt the outer pot 30 and the inner pot 10 . A cooking method suitable for the food 120 is selected by controlling the operation of the first driving unit 60 and the second driving unit 90 .

The operation of the second driving unit 90 performs an operation in which the outer pot 30 or the inner pot 10 tilts forward with respect to a vertical imaginary line. In addition, the operation of the first driving unit 60 rotates the inner pot 10 in a circumferential direction based on a vertical virtual line.

Since the movement of the inner pot 10 can be combined in various ways by controlling the operation of the first driving unit 60 and the second driving unit 90, the cooking apparatus 1 according to an embodiment of the present invention can use various cooking methods. can be implemented

The cover unit 100 is provided with a hot air supply unit 110 capable of circulating internal air inside the inner pot 10 . A fan module 111 having a rotating fan is installed in the hot air supply unit 110 . The temperature of the air moved to the inside of the inner pot 10 through the hot air supply unit 110 is increased by the heating unit 40 for heating the inner pot 10 .

Hot air for cooking the food 120 provided in the inner pot 10 is generated by the operation of the hot air supply unit 110 . Therefore, the cooking time of the food 120 is shortened in a method in which the inner pot 10 is directly heated by the heating unit 40 and a method in which the food 120 is heated by hot air. In addition, the cooking apparatus 1 according to the present invention can cook the food 120 according to the recipe of the food desired by the user.

Since the cover part 100 is detachably installed in the case part 50, the cover part 100 is separated from the case part 50 before and after cooking the food 120, and the food 120 is placed in the inner pot 10. can be put in or taken out.

The inner pot 10 can be modified in various ways within the technical idea of having an inner space in which food 120 is contained. The inner pot 10 according to an embodiment of the present invention has a pot shape with an open top.

A coupling groove 15 for coupling with the connector 63 of the first drive unit 60 to be described later may be provided on the lower surface 13 of the inner pot 10 . The coupling groove 15 has a concave groove shape toward the lower side of the inner pot 10 so that the connector 63 can be inserted and hung.

A coupling groove 15 is provided on the lower side of the central protrusion 14 protruding upward from the lower surface 13 of the inner pot 10 . The central protrusion 14 may be formed in a convex hemispherical shape toward the upper side, and if necessary, the outer shape of the central protrusion 14 may be formed in a shape corresponding to the shape of the mounting groove 22 . Lifters 20 are installed on the inner surface of the inner pot 10 in a vertical direction to easily mix the food 120 .

In the inner pot 10, the inner pot side 16 protrudes upward from the lower surface 13 in the shape of a circular pipe and may be divided into a first side surface 17 and a second side surface 18. The second side surface 18 is located below the first side surface 17. The second side surface 18 is connected to the rim of the lower side surface 13 .

The first side surface 17 is installed at a position facing a first coil 42 to be described later, and the second side surface 18 is installed at a position facing a second coil 43 to be described later. Therefore, the first side surface 17 is heated by the operation of the first coil 42, and the second side surface 18 is heated by the operation of the second coil 43.

The first side surface 17 forms the upper side of the inner pot side surface 16, and the second side surface 18 forms the center and lower portion of the inner pot side surface 16 positioned below the first side surface 17. When the food 120 is placed in the inner pot 10, only the second side surface 18 in contact with the food 120 is heated to heat the food 120.

And when the hot air supply unit 110 is operated, the first side surface 17 is also heated by the heating unit 40 to heat the air discharged from the hot air supply unit 110 .

The inner pot 10 may be made of a material including aluminum and steel. The inner pot 10 according to an embodiment of the present invention may include STS300 series, Al10 series, and STS400 series.

The outer pot 30 supporting the inner pot 10 is located outside the inner pot 10 . The outer pot 30 is formed in a shape corresponding to the inner pot 10, and the upper side is opened together with the inner pot 10.

The outer pot 30 is fixed to the inside of the case part 50, the heating part 40 is installed on the side of the outer pot 30, and the first driving part 60 is installed in the lower center of the outer pot 30. The outer pot 30 is made of a material that is not heated by the heating unit 40. The outer pot 30 according to an embodiment of the present invention is made of plastic or synthetic resin. It also has heat resistance so that it is not deformed by the heated inner pot (10).

Figure 5 is an exploded perspective view of the cover unit 100 and the hot air supply unit 110 according to an embodiment of the present invention, Figure 6 is a hot air supply unit 110 in the cover unit 100 according to an embodiment of the present invention It is a perspective view showing a separated state.

As shown in FIGS. 3 , 5 and 6 , the cover part 100 can be modified in various ways within the technical concept of opening and closing the open inlet part 52 of the case part 50 . The cover part 100 according to an embodiment of the present invention has a disk shape, and a hot air supply part 110 is installed inside the cover part 100 . The cover part 100 is detachably installed on the upper side of the case part 50 and opens and closes the upper side of the inner pot 10 .

The cover part 100 may be made of a single member, and if necessary, a plurality of members may be detachably installed. The cover part 100 according to an embodiment of the present invention includes a cover body 101, a first support cover 102, a second support cover 103, a suction grill 104, and a discharge grill 105. do.

The cover body 101 has a shape in which the lower side is open and the upper and side circumferences are blocked. A fan module 111 and a duct unit 115 constituting the hot air supply unit 110 are installed inside the cover body 101 .

The first support cover 102 is a plate extending in a ring shape, and is fixed to the lower side of the cover body 101 . The outer diameter of the first support cover 102 has a size corresponding to the inner diameter of the cover body 101 . Since the first support cover 102 is detachably installed on the lower side of the cover body 101, maintenance of the hot air supply unit 110 can be performed more easily.

The first support cover 102 has a hole in the center, and a disk-shaped second support cover 103 is detachably installed at the center of the first support cover 102. The first support cover 102 and the second support cover 103 may be fixed by magnetic force. Therefore, the second support cover 103 is separated from the first support cover 102 by an external force greater than the magnetic force.

A suction grill 104 and a discharge grill 105 are installed on the second support cover 103 . The suction grill 104 and the discharge grill 105 have a plurality of holes through which air is moved. The fan module 111 is installed on the upper side of the suction grill 104, and the outlet of the duct unit 115 is located on the upper side of the discharge grill 105.

The hot air supply unit 110 is installed inside the cover unit 100, sucks air in the inner pot 10, discharges the air to the inside of the inner pot 10, and cooks food 120 with hot air. Various variations are possible. The hot air supply unit 110 according to an embodiment of the present invention includes a fan module 111 and a duct unit 115.

The fan module 111 is installed inside the cover part 100 and sucks air inside the inner pot 10 by rotating the fan. A motor and a rotating fan are provided inside the fan module 111, and air is moved by rotation of the fan.

The fan module 111 is installed on the upper side of the suction grill 104 of the cover part 100 and sucks air from the inner pot 10 through the suction grill 104 .

The duct unit 115 is connected to the fan module 111, and various modifications are possible within the technical idea of forming an air flow path for guiding air discharged from the fan module 111 to the lower side of the cover unit 100. The duct part 115 is shaped like a conduit for guiding the movement of air. One side of the duct part 115 is connected to the fan module 111 and the other side of the duct part 115 is the discharge grill 105 of the cover part 100. ) is connected to

The duct unit 115 according to an embodiment of the present invention includes a first duct 116 and a second duct 117. The first duct 116 forms the upper part of the duct part 115, and the second duct 117 is coupled to the lower side of the first duct 116 and forms the lower part of the duct part 115.

The first duct 116 and the second duct 117 are combined to form the duct unit 115 . The first duct 116 has a shape with an open lower side, and the second duct 117 has an open upper side. The first duct 116 and the second duct 117 may be coupled by fitting or by welding or bolting.

The air discharged through the duct unit 115 comes into contact with the inner pot 10 heated by the heating unit 40 and after the temperature rises, it moves to the lower side of the inner pot 10 to heat the food 120 . The other side of the duct part 115 is installed in a downwardly inclined direction in order to discharge air in a direction toward the inner pot 10 .

In addition, the discharge grill 105 facing the duct unit 115 may also be installed inclined in a direction toward the inner pot 10 . Therefore, the air passing through the discharge grill 105 and the discharge grill 105 in turn comes in contact with the heated inner pot 10 and moves to the lower side of the inner pot 10 along the inner surface of the inner pot 10 after being heated.

The heating unit 40 heats the inner pot 10 to cook the food 120 with radiant heat that heats the food 120 in the inner pot 10, and the air coming out of the hot air supply unit 110 is heated in the inner pot ( 10) and after the temperature rises, the food 120 is heated so that the food 120 can be cooked with convective heat.

The cooking apparatus 1 according to an embodiment of the present invention can heat the food 120 to various temperatures by using induction heating and hot air to heat the food 120 . The operation of the hot air supply unit 110 located on the upper part of the inner pot 10 removes unnecessary moisture from the food 120 and at the same time makes the outside of the food 120 crispy to implement a cooking function like an air fryer.

8 is a cross-sectional view of a cooking device 1 according to an embodiment of the present invention, and FIG. 9 is a first coil 42 and a second coil 43 attached to a mounting bracket 45 according to an embodiment of the present invention. 10 is a partially cut-away perspective view showing the installed state, and FIG. 10 is a partially cut-away perspective view showing a state in which air discharged from the duct unit 115 is heated according to an embodiment of the present invention.

As shown in FIGS. 4 and 8 to 10, the heating unit 40 is fixed to the outside of the outer pot 30, and various modifications are possible within the technical idea of heating the inner pot 10 by receiving electrical energy. . The heating unit 40 according to an embodiment of the present invention includes a mounting bracket 45 and a coil 41.

The coil 41 of the heating unit 40 forms a magnetic field, and the inner pot 10 is heated by changing the magnetic field by the coil 41 . The heating unit 40 may be installed between the inner pot 10 and the outer pot 30 or installed outside the outer pot 30 within the technical idea for heating the inner pot 10 in an induction method.

The coil 41 of the heating unit 40 may be installed in a shape directly surrounding the outer surface of the outer pot 30, and the coil 41 may be installed between the outer pot 30 and the inner pot 10. The inner pot 10 may also be heated in a manner in which the coil 41 is directly heated to transfer heat to the inner pot 10 .

The coil 41 according to an embodiment of the present invention heats the inner pot 10 by induction heating by generating a magnetic field. A mounting bracket 45 is installed on the outside of the outer pot 30, and a coil 41 is installed on the outside of the mounting bracket 45. The heating unit 40 operates as an induction type heater using an induced current generated by a magnetic field as a heat source.

Since the heating unit 40 heats the inner pot 10 using a self-induction heating method, quick cooking of food 120 is possible. The heating unit 40 is disposed on the side surface of the inner pot 16 to induce heat in a wide area, and increases the heating rate in a magnetic induction method to facilitate temperature control according to the recipe of the food 120 .

In addition, a heating structure of an automatic cooking appliance using induction heating and hot air by the operation of the heating unit 40 is provided. In the cooking apparatus 1 according to an embodiment of the present invention, an induction heating type coil 41 capable of quickly and uniformly heating the rotating inner pot 10 is disposed outside the inner pot 10 . In addition, the heating unit 40 separates and disposes the induction coil 41 to generate and control hot air.

Since the mounting bracket 45 is fixed to the outside of the outer pot 30, electricity transmitted to the coil 41 is blocked from being transferred to the outer pot 30. The mounting bracket 45 may divide the mounting space vertically so that the two types of coils 41 are mounted.

The mounting bracket 45 according to an embodiment of the present invention includes a bracket body 46, a first protrusion 47 and a second protrusion 48.

The bracket body 46 is formed in a shape corresponding to the outer surface of the outer pot 30 and is fixed to the outer side of the outer pot 30. Since the outer diameter of the outer pot 30 gradually decreases from the upper side to the lower side, the inner diameter of the bracket body 46 also gradually decreases from the upper side to the lower side. The bracket body 46 has a pipe shape and has an open top and bottom.

Since the bracket body 46, the outer pot 30, and the inner pot 10 all have a shape in which the inner diameter gradually narrows from the top to the bottom, the contact area between the bracket body 46 and the outer pot 30 is increased, so that the coil 41 The magnetic field transfer by the is made quickly and easily. In addition, an operation of taking out the inner pot 10 from the inside of the outer pot 30 to the upper side of the outer pot 30 can be easily performed.

The first protrusion 47 protrudes from the upper side of the bracket body 46 to the side of the bracket body 46, and various modifications are possible within the technical idea of restraining the movement of the coil 41. The first protrusion 47 according to an embodiment of the present invention is installed in a circular ring shape and extends from the upper end of the bracket body 46 to the outside of the bracket body 46 . The first protrusion 47 is located above the first coil 42 and blocks the movement of the first coil 42 to the upper side of the first protrusion 47 beyond the first protrusion 47 .

The second protrusion 48 is located below the first protrusion 47 and protrudes laterally from the bracket body 46 to restrain the movement of the coil 41 . The second protrusion 48 according to an embodiment of the present invention is installed in a circular ring shape like the first protrusion 47 . The second protrusion 48 is located between the first coil 42 and the second coil 43 and protrudes outward from the bracket body 46 .

The first protrusion 47 and the second protrusion 48 extend in a horizontal direction, and a phenomenon in which the first coil 42 is caught on the second protrusion 48 and comes into contact with the second coil 43 can be prevented. The movement of the upper side of the first coil 42 is restricted by the first protrusion 47, and the movement of the lower side of the first coil 42 is restricted by the second protrusion 48. The second protrusion 48 is located below the first coil 42 and blocks the movement of the first coil 42 to the lower side of the second protrusion 48 beyond the second protrusion 48 .

The material of the bracket body 46, the first protrusion 47, and the second protrusion 48 includes ferrite. In addition, the bracket body 46, the first protrusion 47, and the second protrusion 48 are molded by insert injection molding.

The mounting bracket 45 is made of ferrite and has an integral shape by insert injection molding. In addition, the mounting bracket 45 reduces interference between the first coil 42 and the second coil 43 and controls the direction of magnetic force so that a magnetic field is formed in a direction toward the inner pot 10 .

Ferrite can be referred to as a magnet, and in more detail, ferrite is an iron oxide-based magnetic ceramic, and can be divided into soft ferrite and hard ferrite according to magnetic properties.

The advantage of soft ferrite is that it has less eddy current loss in a high frequency band than metal. Hard ferrite is a permanent magnet and is used to generate a magnetic field. Its advantage is that it has high magnetic anisotropy and is inexpensive.

Since the mounting bracket 45 is molded by insert injection molding of such ferrite, it is possible to reduce the time and cost required for assembling each part.

The coil 41 wound in the lower mounting space of the mounting bracket 45 is used as a heat source for heating the inner pot 10, and the coil 41 wound in the upper mounting space of the mounting bracket 45 is used as a heat source for heating the inner pot 10. ) It is used as a heat source for heating the air discharged from the hot air supply unit 110 passing through the inside.

The lower mounting space of the mounting bracket 45 is a space for installing the second coil 43 located on the lower side of the second protrusion 48 . The upper mounting space of the mounting bracket 45 is a space located between the first protrusion 47 and the second protrusion 48, and is a space for installing the first coil 42.

The coil 41 is installed on the outer surface of the mounting bracket 45, and various modifications are possible within the technical idea of heating the inner pot 10 by generating a magnetic field. Coil 41 according to an embodiment of the present invention includes a first coil 42 and a second coil 43.

The first coil 42 is installed between the first protrusion 47 and the second protrusion 48, and heats the inner pot 10 using a magnetic field. The first coil 42 heats the inner pot 10 in contact with the air discharged downward through the hot air supply unit 110 .

The first coil 42 may be installed in a shape surrounding the entire upper circumference of the mounting bracket 45 . Alternatively, the first coil 42 may be installed only in a direction in which air is discharged to the lower side of the inner pot 10 through the duct unit 115 provided in the hot air supply unit 110 .

The first coil 42 according to an embodiment of the present invention is in contact with or adjacent to the air discharged to the lower side of the duct unit 115 to heat the inner pot 10, the front of the inner pot 10 (left side in FIG. 7). ) And the first coil 42 is installed in a shape surrounding the side. Since the first coil 42 does not have to be installed at the rear (right side of FIG. 7 ) of the inner pot 10 , the area where the first coil 42 is installed is reduced, thereby reducing production cost.

Since the first coil 42 is used to heat the air discharged from the hot air supply unit 110, it is necessary to install the first coil 42 at the rear of the inner pot 10 through which air is sucked toward the hot air supply unit 110. there is no

The second coil 43 is installed on the lower side of the second protrusion 48 and is installed in a shape winding the outside of the bracket body 46 .

The first side surface 17 of the inner pot 10 facing the first coil 42 is heated by the first coil 42 . The first coil 42 heats the first side surface 17, which is the upper side of the inner pot 10 for generating hot air. The air discharged from the duct unit 115 comes into contact with the first side surface 17 or passes through the periphery of the first side surface 17 and is heated.

The first coil 42 heats the inner pot 10 to generate heat for cooking food 120, and the second coil 43 operates in relation to generating hot air. The second coil 43 is controlled together with the fan module 111 of the hot air supply unit 110 provided in the cover unit 100 to generate hot air.

The coil 41 according to an embodiment of the present invention includes a first coil 42 used for supplying hot air and a second coil 43 used to heat food 120 in the inner pot 10 Since it is operated separately, it is possible to save electricity costs. In addition, since the coil 41 according to an embodiment of the present invention heats the side surface of the inner pot 10, the heating area is increased compared to the method of heating the lower side of the inner pot 10, which is required for heating the food 120. can save you time.

In the cooking apparatus 1 according to an embodiment of the present invention, while cooking food 120, the second coil 43 does not operate and only the first coil 42 and the hot air supply unit 110 are operated to generate only hot air. Can be used for cooking.

Alternatively, the food 120 may be cooked by heating the inner pot 10 by operating only the second coil 43 without operating the first coil 42 . In addition, the first coil 42, the second coil 43, and the hot air supply unit 110 are simultaneously operated to cook the food 120 by heating the inner pot 10 with the hot air.

When overheating of the inner pot 10 is detected, the operation of the first coil 42 and the second coil 43 may be stopped and the cooling function may be performed by operating the fan module 111 of the hot air supply unit 110 .

When only the first coil 42 is operated, heat is transferred to the first side surface 17 forming the upper side of the inner pot 10 through the second side surface 18 heated by the first coil 42 . Therefore, when only the first coil 42 is operated, the temperature of the first side surface 17 is lower than that of the second side surface 18.

The food 120 contained in the inner pot 10 is at a position facing the second side surface 18, and the food 120 is not located inside the first side surface 17. If there is food 120 inside the first side surface 17 corresponding to the upper side of the inner pot 10, the food 120 may overflow to the outside of the inner pot 10. Therefore, there is generally no food 120 inside the first side surface 17 , and there is food 120 inside the second side surface 18 .

When the first side surface 17 is heated in a state where there is no food 120 inside the first side surface 17 and the hot air supply unit 110 is not operated, only the temperature of the first side surface 17 increases and the inner pot 10 ) may be damaged. Accordingly, the first coil 42 is operated to heat the first side surface 17 only when the hot air supply unit 110 is operated or when food 120 is contained inside the first side surface 17 .

When the first side surface 17 is heated by the operation of the first coil 42, the air discharged from the hot air supply unit 110 comes into contact with the inside of the first side surface 17 or the temperature of the heating furnace of the first side surface 17 It exchanges heat with the air around the first side surface 17 where it has risen. The second coil 43 is controlled separately from the first coil 42 and is controlled according to the operation of the fan module 111 of the hot air supply unit 110 .

In the mounting bracket 45, the interval of the section where the coil 41 is installed between the first protrusion 47 and the second protrusion 48 is referred to as L1, and the coil 41 is located under the second protrusion 48. Set the interval between the sections to be installed as L2. Then L1 has a value less than L2.

The first coil 42 is installed between the first protrusion 47 and the second protrusion 48, and the second coil 43 is installed under the second protrusion 48. The length of the section where the first coil 42 is installed is L1, and the length of the section where the second coil 43 is installed is L2. L2 is more than twice as long as L1, and serves as a main heating source of the inner pot 10.

In addition, when the length of the first protrusion 47 protrudes from the bracket body 46 is S1, and the thickness of the coil 41 wound on the outside of the bracket body 46 is T, S1 is a value greater than T have

The thickness of the first coil 42 installed below the first protrusion 47 is T, and when the protruding length of the first protrusion 47 is S1, S1 has a value greater than T, so that the first coil (42) is blocked from moving to the upper side of the first protrusion (47) beyond the first protrusion (47).

In addition, propagation of the magnetic field generated by the first coil 42 to the upper side of the first protrusion 47 is minimized by the first protrusion 47, and the movement of the magnetic field is guided in the direction toward the inner pot 10, thereby providing electrical energy loss can be minimized.

If the length of the second protrusion 48 protrudes from the bracket body 46 is S2 and the thickness of the coil 41 wound on the outside of the bracket body 46 is T, S2 has a value greater than T .

The thickness of the second coil 43 installed below the second protrusion 48 is T, and when the protruding length of the second protrusion 48 is S2, S2 has a value greater than T, so the second coil (43) is blocked from moving to the upper side of the second protrusion (48) beyond the second protrusion (48).

In addition, the propagation of the magnetic field generated by the second coil 43 to the upper side of the second protrusion 48 is minimized by the second protrusion 48, and the movement of the magnetic field is guided in the direction toward the inner pot 10, thereby providing electrical energy loss can be minimized.

The case part 50 is installed in a shape that surrounds the outside of the outer pot 30 and the heating part 40, and various modifications are possible within the technical idea of opening the upper side. The case part 50 according to an embodiment of the present invention is rotatably installed on the upper side of the base part 70, and the heating part 40 and the outer pot 30 are fixed to the inside of the case part 50. is installed with

The case part 50 may be made of a single member, or may be made of a plurality of members, if necessary. The case unit 50 according to an embodiment of the present invention includes a body case 51, a lower case 53, an external gear 54, and a wing member 55.

The body case 51 is installed in a shape surrounding the outside of the heating unit 40 . The upper side of the body case 51 is open and has a columnar shape with an outer diameter gradually increasing from the upper side to the lower side.

The cover part 100 is detachably installed on the upper side of the body case 51, and the lower case 53 is connected to the lower side of the body case 51. The upper and lower sides of the body case 51 have an open shape.

The lower case 53 forms a hemispherical curved surface protruding in a direction toward the base portion 70 . The lower case 53 blocks the lower side of the body case 51 and forms a convex curved surface toward the base portion 70 .

The outer gear 54 is installed on the outer surface of the lower case 53 and has teeth meshing with the gear provided in the second drive unit 90 . The outer gear 54 is formed on the lower surface 13 of the lower case 53, and the outer gear 54 is formed along the movement path along which the case part 50 rotates.

The outer gear 54 extends in a band shape along the curved shape, and wing members 55 are provided on both sides of the outer gear 54 . The wing member 55 protrudes from the lower case 53 to both sides in the width direction W, and rotation is guided by the base portion 70.

Meanwhile, an exhaust hole for discharging air inside the inner pot 10 to the outside may be additionally provided in the case part 50 or the cover part 100 . When the temperature of the air inside the inner pot 10 rises and the pressure increases, food 120 in the inner pot 10 moves rapidly to the outside of the inner pot 10 due to the opening of the cover part 100, resulting in a safety accident. may occur, it is possible to adjust the pressure in the inner pot 10 by adding an exhaust hole. The exhaust hole may also be used to discharge water vapor in the inner pot (10).

Since the outer shape of the cooking device 1 including the case portion 50 forms a curved surface as a whole, when an elderly person including an infant accidentally trips over the cooking device 1, the outer shape of the product forms a curved surface as a whole, resulting in a safety accident. can reduce the possibility of occurrence.

7 is a partial cross-sectional perspective view of a cooking device 1 according to an embodiment of the present invention.

As shown in FIG. 7 , the lifter 20 is detachably installed in the inner pot 10 and protrudes into the inner pot 10 to move the food 120 contained in the inner pot 10. transformation is possible

The lifter 20 according to an embodiment of the present invention has a "J" shape extending in the vertical direction and is fitted and fixed to the inner pot 10.

The plate-shaped lifter 20 is installed in a curved shape along the inner surface of the inner pot 10 . Since the lifter 20 protrudes to the inside of the inner pot 10, the lifter 20 rotates together with the inner pot 10 to move the food 120 in the inner pot 10.

The first driving unit 60 is fixed to the inside of the case unit 50 and generates rotational power using a motor. In addition, the first drive unit 60 is connected to the inner pot 10 through the lower part of the outer pot 30, and various modifications are possible within the technical idea of rotating the inner pot 10 using electric energy.

The first driving unit 60 according to an embodiment of the present invention includes a first driving body 61 and a first driving shaft 62 . In addition, the first driving unit 60 may further include a connector 63 to be connected to the inner pot 10 .

The first driving body 61 is a motor that is located on the lower side of the outer pot 30 and generates rotational power. The first driving body 61 may be fixed to the lower center of the outer pot 30 . In addition, the first driving body 61 is located between the lower case 53 and the outer pot 30, and various modifications such as being fixed to the upper surface of the lower case 53 are possible. A servo motor may be used as the first driving body 61 .

The first drive shaft 62 protrudes outward from the first drive body 61, and the first drive shaft 62 rotates by the operation of the first drive body 61. The first driving shaft 62 protrudes upward from the first driving body 61, penetrates the lower center of the outer pot 30, and protrudes upward of the outer pot 30.

The connector 63 is coupled to the first drive shaft 62 penetrating the outer pot 30, and various modifications are possible within the technical idea of being inserted into the fastening groove formed on the bottom surface of the inner pot 10. A lower portion of the connector 63 forms a groove portion into which the first drive shaft 62 is inserted and caught.

In addition, the connector 63 has a cross shape and is inserted into the coupling groove 15 provided at the bottom of the inner pot 10 to synchronize rotation with the inner pot 10 .

The base part 70 is located on the lower side of the case part 50, and various modifications are possible within the technical idea of guiding an operation in which the case part 50 rotates and tilts. The base part 70 according to an embodiment of the present invention includes a base cover 71 and a base body 75. In addition, the base part 70 may further include an upper roller 76 and a lower roller 77 for guiding rotation of the case part 50 .

The base cover 71 is located on the lower side of the lower case 53 and forms a concave groove shape toward the lower case 53 . The base cover 71 forms a concave hemispherical groove toward the upper side. The curvature of the base cover 71 and the curvature of the lower case 53 are equal to each other or within a set range. Therefore, the lower side of the case part 50 can be stably seated on the upper side of the base part 70 .

The base body 75 extends downward from the rim of the base cover 71 . The base body 75 forms the body of the base portion 70, and its outer diameter gradually increases from the upper side toward the lower side.

A movement guide groove 72 is provided at the center of the base cover 71 . The movement guide groove 72 forms a strip-shaped groove for inserting the outer gear 54 and the wing member 55 protruding downward from the case 50 .

The movement guide groove 72 forms a concave groove from the upper side of the base cover 71 to the lower side. The movement guide groove 72 extends in the direction in which the case 50 is rotated. In addition, since the outer gear 54 and the wing member 55 are inserted into the movement guide groove 72, the case portion 50 can be rotated stably.

The fixed rail 73 is installed in a shape corresponding to the wing member 55. The fixed rail 73 forms a concave groove-shaped curved surface toward the upper side, and supports the lower side of the wing member 55. In addition, the fixed rail 73 is located on the lower side of the upper roller 76 with the wing member 55 interposed therebetween, and extends along the movement path of the wing member 55 in a curved shape.

Since the curvature of the wing member 55 and the curvature of the fixed rail 73 correspond to each other, the lower side of the wing member 55 is in surface contact with the upper side of the fixed rail 73.

The upper roller 76 is rotatably installed on the upper side of the wing member 55 . Therefore, the lower side of the wing member 55 is supported by being caught on the upper side of the fixed rail 73, and the upper side of the wing member 55 is supported by the upper roller 76.

A lower roller 77 supporting the lower side of the lower case 53 is provided inside the movement guide groove 72 . A part of the lower roller 77 protrudes outward from the moving guide groove 72 . Therefore, since the lower roller 77 is in contact with the lower case 53 inserted into the movement guide groove 72, resistance due to frictional force when the lower case 53 rotates by the operation of the second driving unit 90 is reduced. can make it

Meanwhile, a non-slip rubber pad may be installed on the lower surface 13 of the base part 70 . When using the cooking device 1, a non-slip rubber pad is installed to prevent the cooking device 1 from being separated from its original position. The non-slip rubber pad is made in the shape of a rubber plate and is fixed to the lower surface 13 of the base part 70 .

The second driving unit 90 is fixed to the inside of the base unit 70 . The second driving unit 90 is installed inside the base unit 70, and various types of driving devices may be used within the technical idea of moving the case unit 50 by generating rotational power. The second driving unit 90 according to an embodiment of the present invention includes a second driving body 91 and a rotation gear 93.

The second driving body 91 uses a motor and receives electrical energy to supply rotational power. The second driving body 91 is fixed to the inside of the base part 70 . The second driving body 91 located on the lower side of the base cover 71 supplies rotational power.

The second output shaft 92 protruding from the second driving body 91 is rotated by the operation of the second driving body 91, and the rotary gear 93 is a second output shaft provided on the second driving body 91. connected to (92). The rotating gear 93 is a circular gear and rotates together with the second output shaft 92 .

A part of the rotary gear 93 protrudes upward from the base part 70 . The rotation gear 93 protrudes upward from the movement guide groove 72 and is engaged with the external gear 54 provided in the case portion 50 . Therefore, when the rotary gear 93 rotates, the outer gear 54 provided in the case part 50 moves, so that the case part 50 can be rotated.

Since the rotational power of the second driving unit 90 is transmitted to the outer gear 54 provided on the lower side of the case unit 50 to rotate the case unit 50, the inclination of the inner pot 10 containing the food 120 is increased. can be adjusted

In the cooking apparatus 1 according to an embodiment of the present invention, food 120 is cooked in a mode in which the first driving unit 60 is operated to rotate the inner pot 10, and the second driving unit 90 It is possible to cook the food 120 in various cooking modes by implementing a motion such as tilting the inner pot 10 or cooking using a wok.

In the cooking apparatus 1 according to an embodiment of the present invention, it is possible to realize wok motions of boiling and frying through rotation and heating as well as control of the first driving unit 60 and the second driving unit 90 when necessary. Due to this function, the cooking device 1 may smoothly perform the stir-frying function.

In the cooking apparatus 1 according to the present invention, the rotation and tilt of the inner pot 10 can be adjusted by the first driving unit 60 and the second driving unit 90, and the heating unit 40 using the induction coil 41 Since the food 120 is automatically heated by ), the time and cost required for cooking the food 120 can be reduced.

In addition, according to the present invention, the inclination of the inner pot 10 can be changed from vertical to horizontal inclination by the operation of the second driving unit 90, and various dishes such as boiling, frying, and baking can be prepared according to the inclination of the inner pot 10. manufacturing is possible

Hereinafter, an operating state of the cooking apparatus 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

After opening the cover part 100 and opening the upper side of the inner pot 10, put food 120 in the inner pot 10 and combine the cover part 100 with the case part 50 to close the upper part of the inner pot 10 .

When an operation signal is input to the control unit provided in the cooking device 1, the control unit operates the heating unit 40, the hot air supply unit 110, the first driving unit 60, and the second driving unit ( 90) is operated.

In the cooking apparatus 1 according to an embodiment of the present invention, a method of cooking food 120 with radiant heat in which a heating unit 40 heats an inner pot 10, and convection by the operation of a hot air supply unit 110 All methods of cooking the food 120 with heat may be used or only one method may be selectively used.

When cooking such as soup, the second driving unit 90 does not operate and only the first driving unit 60 operates to rotate the inner pot 10 . There is a vertical line passing through the center of the inner pot 10 and extending vertically, and rotation in a circumferential direction based on this vertical line is defined as a first rotation direction D1. The inner pot 10 rotates along with the lifter 20 in the first rotational direction D1 by the operation of the first drive unit 60 . The inner pot 10 can be modified in various ways, such as being able to rotate clockwise or counterclockwise.

The food 120 contained in the inner pot 10 may be cooked by operating only the heating unit 40 that heats the inner pot 10 . In addition, the hot air supply unit 110 is operated to heat the food 120 contained in the inner pot 10 with the hot air circulating inside the inner pot 10 .

The first coil 42 and the second coil 43 and the fan module 111 of the hot air supply unit 110 are respectively controlled according to the cooking order of the food 120 input to the cooking device 1 .

When cooking using hot air is required, the first coil 42 and the hot air supply unit 110 are operated to generate hot air to cook the food 120 .

The second coil 43 is disposed outside the second side surface 18 centering on the lower side of the inner pot 10 where the food 120 is mainly located. The first coil 42 is located in front of the discharge grill 105, which is a passage through which air is discharged from the hot air supply unit 110. The first coil 42 is disposed only on a part of the outer side of the first side surface 17, but the first coil 42 may be disposed on the entire outer circumference of the first side surface 17 if necessary.

The first coil 42 and the second coil 43 are separated from each other by a second protrusion 48 at a predetermined distance to reduce mutual influence.

Describing the operation of the hot air supply unit 110 , the fan module 111 is operated to suck air in the inner pot 10 into the fan module 111 . The air sucked into the fan module 111 is moved to the duct unit 115 and then discharged toward the inner surface of the inner pot 10 to be heated and then moved to the inside of the inner pot 10 to heat the food 120 . Then, the air moved to the upper side of the inner pot 10 is sucked into the fan module 111 again, and the operation is repeated.

The operation of the hot air supply unit 110 creates a flow of air circulating inside the inner pot 10 and the cover unit 100 . The cooking apparatus 1 according to an embodiment of the present invention can save time required to cook the food 120 by cooking the food 120 using both the induction heating method and the convection heating method. In addition, since the cooking apparatus 1 according to the present invention selectively uses a hot air heating method and an induction heating method, it is possible to cook various types of foods 120 and improve consumer satisfaction.

Meanwhile, the tilt of the pot may be adjusted according to the cooking process of the food 120 by the operation of the second driving unit 90 . Therefore, according to the present invention, various types of foods 120 such as soup and stir-fried food can be cooked in one cooking device 1, saving time required for cooking and improving consumer satisfaction.

The operation of the second driving unit 90 rotates the inner pot 10 in the second rotational direction D2. When the inner pot 10 rotates toward the front of the cooking device 1, when the central axis is referred to as a horizontal reference axis, the rotation direction around the horizontal reference axis is set as the second rotation direction D2.

The inner pot 10 and the case portion 50 are rotated in the second rotational direction D2 corresponding to the length of the outer gear 54 . The inner pot 10 and the case part 50 are rotated in an inclined shape toward the front of the cooking device 1 in an upright state. The inner pot 10 and the case portion 50 according to an embodiment of the present invention do not rotate toward the rear of the cooking device 1 in a standing state.

The second driving unit 90 outputs forward rotation and reverse rotation so that the inner pot 10 can be moved in the same motion as a wok. The cooking apparatus 1 according to an embodiment of the present invention can implement a motion of turning the wok, and since the tilt of the inner pot 10 can be adjusted, food 120 can be cooked in various cooking modes, thereby increasing consumer satisfaction. can improve.

On the other hand, the cooking device 1 according to an embodiment of the present invention can recognize a recipe as a barcode or QR code through linkage with a mobile device, and when there is no recognition code, the user can designate a recipe. can provide.

As described above, the present invention has been described with reference to the drawings illustrated, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that variations can be made. In addition, although the operational effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

1: Cooking device
Reference Numerals 10: inner pot 13: lower side 14: central protrusion 15: coupling groove 16: inner pot side 17: first side 18: second side
20: lifter 22: mounting groove
30: outer pot
40: heating unit
41: coil 42: first coil 43: second coil
45: mounting bracket 46: bracket body 47: first protrusion 48: second protrusion
50: case part 51: body case 52: inlet part 53: lower case 54: outer gear 55: wing member
60: first driving unit 61: first driving body 62: first driving shaft 63: connector
Reference Numerals 70: base part 71: base cover 72: moving guide groove part 73: fixed rail 75: base body 76: upper roller 77: lower roller
90: second driving unit 91: second driving body 92: second output shaft 93: rotation gear
Reference Numerals 100: cover part 101: cover body 102: first support cover 103: second support cover 104: suction grill 105: discharge grill
110: hot air supply unit 111: fan module 115: duct unit 116: first duct 117: second duct
120: food
W: width direction
D1: 1st rotational direction D2: 2nd rotational direction
L1: Gap between the first protrusion and the second protrusion
L2: Interval of the section where the coil is installed under the second protrusion
T: the thickness of the coil
S1: protrusion length of the first protrusion
S2: protruding length of the second protrusion

Claims (20)

An inner pot with an open upper side;
an outer pot located on the outside of the inner pot and having an upper side opened;
a heating unit fixed to the outer pot and receiving electric energy to heat the inner pot;
a cover part located on the upper side of the inner pot and opening and closing the opened inlet of the inner pot; and
A cooking apparatus comprising: a hot air supply unit installed inside the cover unit, sucking air in the inner pot and discharging the air to the inside of the inner pot.
According to claim 1,
The heating unit includes a mounting bracket located outside the outer pot; and
A cooking apparatus including a coil installed on an outer surface of the mounting bracket and generating a magnetic field to heat the inner pot.
According to claim 2,
The mounting bracket is made of a shape corresponding to the outer surface of the outer pot, the bracket body fixed to the outer side of the outer pot;
a first protrusion protruding from an upper side of the bracket body in a lateral direction to restrain movement of the coil; and
and a second protrusion positioned below the first protrusion and protruding laterally from the bracket body to restrain movement of the coil.
According to claim 3,
An interval between the first protrusion and the second protrusion in which the coil is installed is referred to as L1,
If the interval of the section in which the coil is installed under the second protrusion is L2,
L1 is a cooking device having a smaller value than L2.
According to claim 3,
The length of the first protrusion protruding from the bracket body is referred to as S1,
If T is the thickness of the coil wound on the outside of the bracket body,
S1 is a cooking device having a value greater than T.
According to claim 3,
The length of the second protrusion protruding from the bracket body is referred to as S2,
If T is the thickness of the coil wound on the outside of the bracket body,
S2 is a cooking device having a value greater than T.
According to claim 3,
A material of the bracket body, the first protrusion, and the second protrusion includes ferrite.
According to claim 3,
The bracket body, the first protrusion and the second protrusion are molded by insert injection molding.
According to claim 3,
The coil may include a first coil installed between the first protrusion and the second protrusion; and
A cooking apparatus comprising a; second coil installed below the second protrusion.
According to claim 9,
The first coil heats the inner pot in contact with the air discharged through the hot air supply unit.
According to claim 9,
The hot air supply unit may include a fan module installed inside the cover unit and sucking in air from the inside of the inner pot by rotating a fan; and
A cooking apparatus comprising: a duct unit connected to the fan module and forming an air flow path for guiding air discharged from the fan module to a lower side of the cover unit.
According to claim 11,
A first side of the inner pot facing the first coil is heated by the first coil,
The cooking apparatus in which the air discharged from the duct part is heated by coming into contact with the first side surface or passing through the periphery of the first side surface.
An inner pot with an open upper side;
an outer pot located on the outside of the inner pot and having an upper side opened;
a heating unit fixed to the outer pot and receiving electric energy to heat the inner pot;
a case portion installed in a shape surrounding the outside of the outer pot and the heating portion and having an upper side opened;
a cover portion for opening and closing the inlet of the case portion; and
A cooking apparatus comprising: a hot air supply unit installed inside the cover unit, sucking air in the inner pot and discharging the air to the inside of the inner pot.
According to claim 13,
The heating unit includes a mounting bracket located outside the outer pot; and
A cooking apparatus including a coil installed on an outer surface of the mounting bracket and generating a magnetic field to heat the inner pot.
According to claim 14,
The mounting bracket may include a bracket body fixed to the outer side of the outer pot in a shape corresponding to the outer surface of the outer pot;
a first protrusion protruding from an upper side of the bracket body in a lateral direction to restrain movement of the coil; and
and a second protrusion positioned below the first protrusion and protruding laterally from the bracket body to restrain movement of the coil.
According to claim 15,
The coil may include a first coil installed between the first protrusion and the second protrusion; and
A cooking apparatus comprising a; second coil installed below the second protrusion.
According to claim 13,
a base portion located below the case portion and guiding a tilting operation of the case portion; and
The cooking apparatus further comprising a; a second driving unit installed inside the base unit and generating rotational power to move the case unit.
According to claim 17,
The case unit may include a body case installed in a shape surrounding the outside of the heating unit;
a hemispherical lower case connected to a lower portion of the body case and protruding in a direction toward the base portion; and
A cooking apparatus comprising: an external gear installed on an outer surface of the lower case and having teeth engaged with the gear provided in the second driving unit.
According to claim 13,
The hot air supply unit may include a fan module installed inside the cover unit and sucking in air from the inside of the inner pot by rotating a fan; and
A cooking apparatus comprising: a duct unit connected to the fan module and forming an air flow path for guiding air discharged from the fan module to a lower side of the cover unit.
An inner pot with an open upper side;
an outer pot located on the outside of the inner pot and having an upper side opened;
a heating unit fixed to the outer pot and receiving electric energy to heat the inner pot;
a case portion installed in a shape surrounding the outside of the outer pot and the heating portion and having an upper side opened;
a first driving unit fixed to the inside of the case unit, passing through a lower portion of the outer pot and connected to the inner pot, and rotating the inner pot by generating rotational power;
a cover portion for opening and closing the inlet of the case portion; and
A cooking apparatus comprising: a hot air supply unit installed inside the cover unit, sucking air in the inner pot and discharging the air to the inside of the inner pot.

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