KR102194277B1 - Smart kettle using induction heating - Google Patents

Abstract

The present invention relates to a smart kettle using induction heating, available in a smart table that generates a magnetic field, and relates to a smart kettle that heats contents by a magnetic field applied from the smart table. The smart kettle, a body portion heated by an applied magnetic field, a temperature sensor disposed below the body portion, and measuring a temperature of a lower surface of the body portion, and the strength of the magnetic field based on the temperature measured by the temperature sensor And a control unit outputting a control signal for adjusting

Description

Smart kettle using induction heating

<1> The present invention relates to a smart kettle using induction heating, available in a smart table that generates a magnetic field, and relates to a smart kettle that heats contents by a magnetic field applied from the smart table.

<2> In general , in homes, restaurants, and offices, objects or food can be placed and a table is used to support objects or food.

<3> In recent years, attempts to use the table for a variety of purposes are increasing by including not only objects but also various devices or modules.

<4> In particular, research is being conducted on a smart table with built-in induction heating module that heats metal cooking vessels by induction heating using electricity.

<5> Smart kettles that can be used in such a smart table allow high-frequency current to flow through the working coil or heating coil, and when the strong magnetic line of force generated by this flows through the cooking vessel, the eddy current (Eddy) Current) flows and the container itself is heated.

<6> Looking at the basic heating principle of the smart kettle, the magnetic cooking vessel generates heat by induction heating as current is applied to the heating coil, and the vessel itself is heated early by the generated heat to cook. You lose.

<7> In other words, the smart kettle can heat the contents in the container using an induction heating method. However, in the case of a conventional smart kettle, a metal material of a material that can be heated by a magnetic field was present inside the container, and for a structure that can be detached between the container and the metal material, the metal material should be formed smaller than the size of the bottom of the container. It had an unavoidable structural limitation, and it was difficult to implement a large output.

<8> In addition, in the case of other conventional smart kettles, since the temperature sensor measuring the temperature in the container is formed to protrude into the container, it was difficult to clean the container when cleaning, and the temperature sensor may be damaged during the cleaning process. There was this. In addition, there was also the possibility of leakage due to the joint where the temperature sensor and the container are coupled.

<9> An object of the present invention is a smart kettle that includes a magnetic material capable of induction heating (IH) heating at the bottom of the body to which the contents are applied, and controls the size of the magnetic field applied to the body according to the temperature of the body. Is to provide.

<10> Another object of the present invention is to attach a temperature sensor for measuring the temperature of the body to the bottom of the body portion opposite the content space, to reduce the possibility of damage to the temperature sensor during cleaning, and to eliminate the joint to which the temperature sensor is coupled. It eliminates the possibility of leakage through the container and provides a smart kettle that can solve problems (eg, short circuit or electric shock) that may occur when cleaning the container.

<11> A further object of the present invention to provide a smart kettle which includes a magnetic substance capable IH heat to the body floor and to improve the thermal insulation function is formed by the vacuum region to prevent the heat loss terms.

<12> The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention that are not mentioned can be understood by the following description, and more clearly understood by examples of the present invention. Will be In addition, it will be easily understood that the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.

<13> In the smart kettle according to an embodiment of the present invention, a body portion heated by an applied magnetic field, a temperature sensor disposed below the body portion, and measuring a temperature of a lower surface of the body portion, and the temperature sensor And a control unit that outputs a control signal that adjusts the strength of the magnetic field based on the measured temperature.

<14> A smart kettle according to another embodiment of the present invention is a control for adjusting the strength of the magnetic field based on the body part heated by the magnetic field applied from the smart table generating the magnetic field, and the temperature of the body part And a control unit for outputting a signal.

<15> The smart kettle according to the present invention includes a magnetic material capable of IH heating at the bottom of the body part, and the magnitude of the magnetic field applied to the body part may be adjusted according to the temperature measured by the temperature sensor. At this time, the smart kettle receives the target temperature from the user and controls the target temperature to be maintained, thereby generating a high-power magnetic field to the target temperature to quickly heat the contents, thereby shortening the time for heating the contents and exceeding the target temperature. By controlling the temperature so as not to increase, the safety in use can be improved.

In addition, in the smart kettle according to the present invention, a temperature sensor for measuring the temperature of the body portion is attached to the bottom surface opposite to the content space of the body portion, and a joint portion is not formed on the inner surface of the body portion. Through this, it is possible to solve the difficulty of washing the body part and prevent foreign matter from being formed in the joint. In addition, it is possible to eliminate the possibility of damage to the temperature sensor when cleaning the body, improve user convenience, and facilitate maintenance and management of the body.

<17> In addition, the smart kettle according to the present invention includes a magnetic material capable of heating IH at the bottom of the body and forms a vacuum area to prevent heat loss on the side, thereby improving the thermal insulation function inside the body. . Through this, the energy efficiency of the smart kettle can be increased, and the temperature of the heated contents can be maintained for a long time.

<18> Fig. 1 and Fig. 2 is a perspective view of a smart kettle in accordance with some embodiments of the invention.
<19> Figure 3 shows the smart table for applying a magnetic field to a smart kettle of Figure 1;
<20> Figure 4 is a diagram for explaining the principle of heating a smart kettle of FIG.
<21> Figure 5 is a view for explaining a foot of a smart kettle of Figure 1;
<22> Figure 6 is a view illustrating a smart kettle according to a first embodiment of the present invention.
<23> Figure 7 is a block diagram for explaining the operation method of the smart kettle according to a first embodiment of the present invention.
<24> Figure 8 is a view illustrating a body of the smart kettle according to a second embodiment of the present invention.
<25> Figure 9 is a diagram for illustrating a body part of a smart kettle according to a third embodiment of the present invention.
<26> Figure 10 is a view illustrating a body of the smart kettle according to a fourth embodiment of the present invention.
<27> Figure 11 is a view illustrating a body of the smart kettle according to a fifth embodiment of the present invention.
<28> Figure 12 is a diagram for illustrating a body part of a smart kettle according to a sixth embodiment of the present invention.

<29> Terms and words used in this specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor is appropriate to use the concept of terms in order to explain his own invention in the best way. Based on the principle that it can be defined as such, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. In addition, the embodiments described in the present specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, and thus they can be replaced at the time of application. It is to be understood that there may be a variety of equivalents and variations that may exist.

<30> or less, will be described in detail with reference to the drawings smart kettle in accordance with some embodiments of the invention.

<31> Fig. 1 and Fig. 2 is a perspective view of a smart kettle in accordance with some embodiments of the invention.

If <32> 1 and 2, the smart kettle (1) has a body portion 10, a receiving portion 20, base portion 30, cover portion 40 according to some embodiments of the invention, It includes a handle part 50.

The body portion 10 may contain contents therein, and an outlet communicating with the inside is formed at one side so as to discharge the contents to the outside. The body portion 10 has an open upper side, and the cover portion 40 may be fastened to the open upper side. The body portion 10 includes a vacuum region therein, and the vacuum region prevents heat of the contents inside the body portion 10 from easily escaping to the outside, so that the temperature of the contents can be maintained for a long time.

<34> the outer surface of the body portion 10 may be formed in a cylindrical shape, curved or streamlined, the present invention is not limited thereto.

The support part 20 may be coupled to the lower side of the body part 10 to support the body part 10. The support part 20 may be formed to be connected to the outer surface of the body part 10.

The base portion 30 is formed on the lower side of the support portion 20, so that the support portion 20 does not slide easily on the mounting surface, or the center of gravity can be lowered. For example, the base portion 30 may be formed of an elastic material, but the present invention is not limited thereto. In some embodiments of the present invention, the base portion 30 may be omitted.

The cover part 40 may be coupled to one side of the body part 10 through a hinge, and may cover the open upper surface of the body part 10. The cover part 40 is coupled with the body part 10 to allow the contents of the body part 10 to be discharged to the outside only through the outlet.

The handle portion 50 may be formed on the other side of the body portion 10 in a shape that is easy for a user to grasp with a hand. The handle part 50 may include an interface part 51 for receiving a user's control input and a display part 52 for displaying the temperature of the body part 10.

The interface unit 51 may receive an input from the user for setting a target temperature through temperature control of the body unit 10 or whether the smart kettle 1 is operated.

The display unit 52 may display information on a target temperature or operation status received from the interface unit 51 on the screen using colors or numbers. For example, the display unit 52 may include an LED representing temperature in color and an LCD panel representing temperature information in numbers, but the present invention is not limited thereto.

<41> The interface unit 51 and the display unit 52 shown in the drawings are examples, and the present invention is not limited thereto, and the interface unit 51 and the display unit 52 are of the smart kettle 1. It can be arranged in different positions and in different shapes.

The water level display part 60 may be formed on one side of the body part 10 and may inform the user of the level of the contents inside the body part 10. The water level display unit 60 may display the level of the contents in the body 10 through the transparent glass 62. However, the present invention is not limited thereto, and the water level display part 60 measures the level of the contents in the body part 10 by using a water level sensor installed inside the body part 10, and displays it on the display part 52. Can be displayed.

<43> Figure 3 shows the smart table for applying a magnetic field to a smart kettle of Figure 1;

If <44> 3, the smart table 1000 for heating the smart kettle (1) of the present invention, may have a wireless power transmission function and an induction heating (induction heating) function.

As shown in FIG. 3, the smart table 1000 may induction heat the smart kettle 1 placed on the plate.

When the smart kettle 1 is placed on the working coil of the smart table 1000, when an alternating current, particularly a high-frequency alternating current flows through the working coil, a magnetic field is generated in the working coil. Due to the electromagnetic induction effect by the magnetic field, an eddy current is induced in the cooking vessel. Due to this eddy current, Joule heat is generated from the resistance component of the cooking container, and the cooking container is heated.

In addition, the smart table 1000 may supply wireless power to a wireless home appliance (for example, the smart kettle 1) capable of receiving wireless power. That is, the smart table 1000 and wireless home appliances may transmit/receive wireless power according to a known wireless power transmission system, for example, an electromagnetic induction method and a magnetic resonance method.

The electromagnetic induction method uses an electromagnetic induction phenomenon in which a voltage is induced and a current flows when a magnetic field is changed around a conductor through which electricity flows.

In the magnetic resonance method, when a transmitter and a receiver resonate at the same frequency, electric power can be transmitted according to wireless power transfer in which an electromagnetic wave moves from a transmitter to a receiver through an electromagnetic field. The transmitting coil of the transmitter may have a predetermined resonant frequency and receive energy from the power supply. It generates electromagnetic waves, and accordingly, a magnetic field may be formed. In this case, induction power may be generated in the receiving coil of the receiver by the magnetic field.

<50> The smart table 1000 includes a wireless power transmission coil (Tx coil) 1110 and an inverter 1120 supplying power to the wireless power transmission coil 1110 inside or below the plate. A transmission module 1100 may be included.

In addition, the wireless home appliance of the present invention is provided with a wireless power receiving unit, the wireless power transmitting coil through the wireless power receiving coil (for example, the power receiving coil 210 of FIG. 5) of the wireless power receiving unit. Wireless power can be supplied from (1110).

<52> On the other hand, according to the embodiment, the wireless power transmission module 1100, may perform the functions of the induction heating cooking operation, an induction heating cooking apparatus. In this case, the wireless power transmission coil 1110 may operate as a working coil that generates a magnetic field for induction heating an adjacent object.

In addition, the smart table 1000 according to an embodiment of the present invention can wirelessly communicate with a home appliance such as a cooking appliance and operate in conjunction with other devices.

<54> Figure 4 is a diagram for explaining the principle of heating a smart kettle of FIG. 5 is a view for explaining the support of the smart kettle of FIG.

After <55> 4, in the smart table 1000 for heating the smart kettle 1 of the present invention, current is supplied to the heating coil (L) contained in the smart table 1000, a heating coil ( A magnetic field (B) passing through the inside of L) is induced. In particular, when a temporally changing current, that is, an alternating current, is supplied to the heating coil L, a temporally changing magnetic field B is induced inside the heating coil L. In this way, the magnetic field (B) generated by the heating coil (L) passes through the bottom surface of the body portion (10).

When the magnetic field B that changes in time passes through the conductor, a current rotating around the magnetic field B is generated in the conductor. In this way, a phenomenon in which a current is induced by a magnetic field B that changes in time is called an electromagnetic induction phenomenon, and a rotating current is called an eddy current. In the case of a cooking apparatus using induction heating, an electromagnetic flow phenomenon and an eddy current occur at the bottom of the body portion 10.

<57> When the magnetic field (B) generated by the heating coil (L) passes through the bottom surface of the body portion 10, the eddy current (EI) rotates around the magnetic field (B) inside the bottom surface of the body portion 10 Occurs. The body portion 10 is heated by the eddy current (EI). Specifically, when the eddy current EI flows through the body portion 10 having electrical resistance, the atomic nuclei constituting the body portion 10 and electrons due to the eddy current EI travel. Heat is generated by the movement between the nucleus and electrons. That is, the smart table 1000 can supply current to the heating coil L and heat the body 10 of the smart kettle 1 by using the magnetic field B generated by the heating coil L. have.

<58> At this time, the body portion 10 includes a non-magnetic material which is non-heat by a magnetic material and, eddy currents (EI) which is heated by the eddy currents (EI). Specifically, the outer surface 109 of the lower surface of the body portion 10 is composed of a non-magnetic material and is not affected by the magnetic field (B), and the inner surface 102 of the lower surface of the body portion 10 is composed of a magnetic material. It can be heated by B).

In addition, the inner surface 102 of the body portion 10 is composed of a magnetic material integrally formed, the side wall of the outer surface of the body portion 10 is composed of a magnetic material integrally formed with the inner surface 102, and the body portion ( The lower surface of the outer surface of 10) may be composed of a non-magnetic material.

<60> In other words, this is a smart kettle 1 according to the invention, not to attach the temperature sensor to measure the temperature of the body section 10 in the opposite bottom of the body of the content area and the additional fittings is formed with a body portion inner surface . Through this, it is possible to solve the difficulty of cleaning the body part 10 and prevent foreign matter from being formed in the joint. In addition, it is possible to eliminate the possibility of damage to the temperature sensor when cleaning the body portion 10, improve user convenience, and facilitate maintenance and management of the body portion.

In addition, the sidewall of the body portion 10 includes the vacuum region 105 to generate a warming effect so that the temperature of the heated contents does not change easily. Through this, the smart kettle 1 of the present invention can increase energy efficiency and maintain the temperature of the heated contents for a long time.

If <62> Referring to Figure 5, pedestal section 20 of the smart kettle 1 according to some embodiments of the invention may include a power receiving coil 210 and temperature sensor 215 to the inside.

The power receiving coil 210 may receive wireless power through the magnetic field B generated from the smart table 1000. For example, the power receiving coil 210 may receive or produce wireless power from the smart table 1000 according to an electromagnetic induction method and a magnetic resonance method.

The power receiving coil 210 is disposed inside the support part 20 and may be formed along an outer peripheral surface of a lower surface of the support part 20. For example, the power receiving coil 210 may be disposed in a donut shape.

The temperature sensor 215 is disposed in the center of the support part 20 and may contact the outside of the lower surface of the body part 10. That is, as the support part 20 is coupled to the lower part of the body part 10, the temperature sensor 215 is arranged to be in contact with the lower surface of the body part 10 to measure the temperature of the lower surface of the body part 10 can do.

<66> For example, the temperature sensor 215 is disposed so as to contact the non-magnetic side of the lower face of the body portion 10 may measure the temperature of the body portion (10). At this time, since a vacuum region is formed between the magnetic body and the non-magnetic body of the body portion 10 containing the contents, the temperature sensor 215 cannot directly measure the temperature of the contents. However, in the present invention, by compensating the temperature measured by the temperature sensor 215 using pre-stored data, the correct temperature of the contents in the body 10 can be measured.

<67> However, the temperature sensor 215 of the present invention is not limited to be disposed at the center of the pedestal section 20, it may be arranged to be changed to another.

<68> Figure 6 is a view illustrating a smart kettle according to a first embodiment of the present invention. 7 is a block diagram illustrating a method of operating a smart kettle according to a first embodiment of the present invention.

If <69> Figure 6 and to Figure 7, the power generated in the power receiving coil 210 can be used for the operations of the respective components of the smart kettle (1).

The power receiving coil 210 may transmit the generated power to the control circuit 300 controlling the operation of the smart kettle 1 by wire or wirelessly.

The control circuit 300 for controlling the operation of the smart kettle 1 includes a rectifying unit 310, a power supply unit 320, a control unit 330, an interface unit 341, a display unit 343, and a communication unit 345. , And a memory unit 347.

<72> Specifically, the power receiving coil 210 generates an alternating-current power using an applied magnetic field. The generated AC power is delivered to the rectifying unit 310.

The rectifying unit 310 may rectify the AC power generated by the power receiving coil 210 to generate DC power. In addition, the rectifying unit 310 may reduce a change in the generated DC power and maintain it uniformly. That is, the rectifying unit 310 may include a rectifying circuit RC for converting AC power into a DC power and a smoothing circuit SC for uniformly maintaining the converted DC power. For example, the rectifier circuit RC may have a form in which four diodes of a full bridge form are arranged, and the smoothing circuit SC may have a form in which capacitors are connected in parallel to two stages. However, the present invention is not limited thereto.

The power supply unit 320 may transmit the DC power received from the rectifying unit 310 to the control unit 330. In this case, the power supply unit 320 includes an energy storage system (ESS) that manages the generated power, thereby providing stable power to the control unit 330. However, the present invention is not limited thereto.

The control unit 330 may collectively control the operation of the smart kettle 1.

The control unit 330 may transmit a control signal to a component that performs each operation so that the smart kettle 1 is operated according to a user command input through the interface unit 341. That is, the controller 330 controls the overall operation and signal flow of the internal components of the smart kettle 1, and performs a function of processing data.

The user's command input through the interface unit 341, the operation state of the smart kettle 1, and the temperature inside the body unit 10 may be displayed on the display unit 343. The display unit 343 may display the information using colors or numbers.

The control unit 330 controls the power supplied by the power supply unit 320 to be transmitted to the internal components of the induction heating cooker. In addition, the control unit 330 uses a difference between the measured temperature sensed by the temperature sensor 215 and the target temperature input from the user through the interface unit 341, and uses the magnetic field B generated by the smart table 1000. A control signal that adjusts the size of) can be generated.

The communication unit 345 may wirelessly transmit the generated control signal to the smart table 1000. At this time, the short-range wireless communication networks used by the communication unit 345 include Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and ZWave. -Wave), etc. may be included. However, the present invention is not limited thereto.

The memory unit 347 may store an operation input by the user, a target temperature set by the user, and the like, and provide the stored data to the control unit 330. The memory unit 347 includes one or more volatile memory devices such as DDR SDRAM (Double Data Rate Static DRAM), SDR SDRAM (Single Data Rate SDRAM), and/or EEPROM (Electrical Erasable Programmable ROM), flash memory. It may include one or more nonvolatile memory devices. However, the present invention is not limited thereto.

<81> The smart kettle 1 according to the present invention includes a magnetic material capable of IH heating at the bottom of the body portion 10, and is applied to the body portion 10 according to the temperature measured by the temperature sensor 215 You can adjust the size of the magnetic field. At this time, the smart kettle 1 receives the target temperature from the user and controls the target temperature to be maintained, thereby generating a high-power magnetic field to the target temperature to quickly heat the contents, thereby reducing the time required for heating the contents. By controlling the temperature not to increase above the temperature, safety in use can be improved.

<82> Figure 8 is a view illustrating a body of the smart kettle according to a second embodiment of the present invention. 9 is a view for explaining the body of the smart kettle according to the third embodiment of the present invention. 10 is a view for explaining the body of the smart kettle according to the fourth embodiment of the present invention. 11 is a view for explaining the body of the smart kettle according to the fifth embodiment of the present invention. 12 is a view for explaining the body of the smart kettle according to the sixth embodiment of the present invention.

For convenience of description, hereinafter, redundant descriptions of the same matters as those of the above-described embodiment will be omitted, and differences will be mainly described.

<84> Referring to Figure 8, the body portion 11 of the smart kettle according to a second embodiment of the present invention is connected with the first portion 111 and the bottom section forming the base of the body portion 11 And a second portion 113 forming a sidewall of the body portion 11. In this case, the second part 113 may include a vacuum region 115 therein.

<85> The first portion 111 may include a magnetic body 117, and a non-magnetic material 110 formed on the outside formed in the center.

The magnetic body 117 is arranged in a circular shape at the center of the bottom portion, and the non-magnetic body 110 may be formed to be in contact with the outer periphery of the magnetic body 117. The non-magnetic body 110 may be integrally formed with the second portion 113 forming the sidewall of the body 11. A vacuum region 115 may be formed inside the nonmagnetic body 110. Accordingly, the magnetic field B formed in the smart table 1000 may be mainly concentrated in the portion where the magnetic body 117 is formed.

In this case, the magnetic body 117 may include a material of the SUS 4XX series, and the non-magnetic body 110 may include a material of the SUS 3XX series. However, this is only an example, and the present invention is not limited thereto.

<88> Referring to Figure 9, the body portion 12 of the smart kettle according to a third embodiment of the present invention is connected with the first portion 121 and the bottom portion forming a bottom portion of the body part 12 It includes a second portion 123 forming a sidewall of the.

<89> In this case, the first part 121 is a vacuum region (125) inside the second portion 123, and includes only the magnetic material 127 comprises only non-magnetic body 120, a non-magnetic material (120) Can include.

<90> Accordingly, the magnetic material 127 forming the inner surface and the outer surface of the bottom portion, the non-magnetic body 120 is formed in contact with the outer periphery of the magnetic substance 127, it is possible to form the side wall.

<91> The body portion 12 of the smart kettle according to the third embodiment of the present invention includes a magnetic material that is wider than the body portion 11 of the smart kettle according to the second embodiment, and the sensitivity to the magnetic field (B) Can be increased.

In this case, the magnetic body 127 may include a material of the SUS 4XX series, and the nonmagnetic material 120 may include a material of the SUS 3XX series. However, this is only an example, and the present invention is not limited thereto.

<93> Referring to Figure 10, a fourth embodiment the body part 13 of the smart kettle according to an embodiment of the present invention is connected with the first portion 131 and the bottom portion forming a bottom portion of body portion 13 It includes a second portion 133 forming the sidewall of the.

<94> At this time, the first part 131 forms the inner surface of the bottom part and is non-magnetic material 130 that is not heated by the magnetic field (B), and the outer surface of the bottom part is formed and heated by the magnetic field (B). It includes a magnetic body 137. The second part 133 includes only the nonmagnetic material 130, and the nonmagnetic material 130 may include a vacuum region 135 therein.

<95> The non-magnetic body 130 forms the inner surface of the body part 13 and is processed so that a joint part is not formed therein, and the magnetic body 137 is the body part 13 so as to contact one surface of the non-magnetic body 130 It may be disposed on the first portion 131 of.

In this case, the vacuum region 135 may be formed only outside the first portion 131 and may not be formed in the central portion of the first portion 131. However, the present invention is not limited thereto.

In this case, the magnetic material 137 may include a material of the SUS 4XX series, and the non-magnetic material 130 may include a material of the SUS 3XX series. However, this is only an example, and the present invention is not limited thereto.

<98> Referring to Figure 11, the body portion 14 of the smart kettle according to the fifth embodiment is connected with the first portion 141 and the bottom portion forming a bottom portion of the body portion 14 of the present invention It includes a second portion 143 forming the sidewall of the.

<99> In this case, the first portion 141 is disposed inside the non-magnetic body 140, a non-magnetic body 140, which forms the inner surface and the outer surface of the bottom portion and the non-heated by a magnetic field (B) the magnetic field (B It includes a magnetic body 147 heated by ). The second part 143 may include only the nonmagnetic material 140, and the nonmagnetic material 140 may include a vacuum region 145 therein.

<100> The non-magnetic body 140 forms the inner surface of the body portion 14 and is processed so that the joint portion is not formed therein, and the magnetic body 147 corresponds to the first portion 141 of the body portion 14. It may be disposed inside the non-magnetic body 140. Accordingly, the nonmagnetic material 140 is formed so that the inner and outer surfaces of the body 14 are integrally formed, and the magnetic material 147 is disposed inside the nonmagnetic material 140, and the magnetic field passing through the nonmagnetic material 140 ( It can be formed to be heated by B).

In this case, the magnetic body 147 may include a material of the SUS 4XX series, and the non-magnetic material 140 may include a material of the SUS 3XX series. However, this is only an example, and the present invention is not limited thereto.

<102> 12, the body portion 15 of the smart kettle according to a sixth embodiment of the present invention is connected with the first portion 151 and the bottom portion forming a bottom portion of the body portion 15 It includes a second portion 153 forming a sidewall of the.

In this case, both the first portion 141 and the second portion 153 include the magnetic body 150 heated by the magnetic field B. In this case, the magnetic body 150 is formed such that the inner and outer surfaces of the body 14 are integrally formed, and may be formed of a single material. The vacuum region 155 may be formed only in the second portion 153.

<104> In this case, the magnetic body 150 may include a material of SUS 4XX series. However, this is only an example, and the present invention is not limited thereto.

<105> Although not clearly shown in the drawings, the body parts 11 to 15 of the smart kettle described with reference to FIGS. 8 to 12 are applied in place of the body part 10 described with reference to FIGS. 1 to 7 and Can be implemented. Accordingly, descriptions of other components overlapping with the previously described content will be omitted.

<106> Thus, the smart kettle in accordance with some embodiments of the present invention, a body portion including a possible magnetic material IH heating the floor, smart table 1000 on the basis of the temperature measured by the temperature sensor (10 to 15) You can adjust the magnitude of the magnetic field applied to the smart kettle at

<107> At this time, the smart kettle receives the target temperature from the user and controls the target temperature to be maintained, thereby generating a high-power magnetic field to the target temperature to quickly heat the contents, thereby shortening the time for heating the contents. By controlling the temperature not to increase above the temperature, safety during use can be improved.

<108> The embodiments described above are to be understood to be illustrative and not restrictive in all respects, the scope of the invention will be indicated by the claims rather than the foregoing description to be described later. In addition, the meaning and scope of the claims to be described later, as well as all changes and modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

10: body 20: support
30: base portion 40: cover portion
50: handle part

Claims (19)

A body portion heated by an applied magnetic field;
A temperature sensor disposed below the body portion and measuring a temperature of a lower surface of the body portion; And
And a control unit for outputting a control signal for adjusting the strength of the magnetic field based on the temperature measured by the temperature sensor,
The control unit,
In order to correct the temperature measurement error caused by the vacuum region between the inner surface and the outer surface of the lower surface of the body part, the temperature measured by the temperature sensor is compensated using pre-stored data,
Adjusting the strength of the magnetic field based on the compensated temperature
Smart kettle.
The method of claim 1,
A power receiving coil disposed under the body portion and generating AC power using the magnetic field;
A rectifying unit that converts the AC power received from the power receiving coil into a DC power supply,
Smart kettle further comprising a power supply for providing the DC power received from the rectifier to the control unit.
The method of claim 2,
The power receiving coil and the temperature sensor are disposed inside, further comprising a support portion coupled to the lower portion of the body,
The power receiving coil is a smart kettle disposed on a lower surface of the support.
The method of claim 3,
The temperature sensor is disposed in the center of the support portion, the smart kettle is in contact with the outside of the lower surface of the body to measure the temperature of the lower surface of the body.
The method of claim 2,
Smart kettle further comprising a communication unit for wirelessly transmitting the control signal to the smart table generating the magnetic field.
The method of claim 5,
An interface unit that receives an input from a user and determines a target temperature;
Further comprising a display for displaying the target temperature on the screen using a color or number,
The control unit, a smart kettle that adjusts the magnetic field generated by the smart table using the control signal so that the temperature measured by the temperature sensor reaches the target temperature.
The method of claim 1,
The inner surface of the body portion includes a magnetic body formed integrally and heated by the magnetic field,
A portion of the bottom portion of the outer surface of the body portion is a smart kettle comprising a non-magnetic material that is not heated by the magnetic field.
delete In a smart kettle used on a smart table that generates a magnetic field,
A body portion heated by the magnetic field applied from the smart table; And
And a control unit outputting a control signal for adjusting the strength of the magnetic field based on the temperature of the body,
The control unit,
In order to correct the temperature measurement error caused by the vacuum region between the inner surface and the outer surface of the lower surface of the body part, the temperature of the body part is compensated using pre-stored data,
Adjusting the strength of the magnetic field based on the compensated temperature
Smart kettle.
The method of claim 9,
The body part,
A first portion forming a bottom portion of the body portion,
A smart kettle that forms a sidewall of the body portion connected to the bottom portion, and includes a second portion including a vacuum region inside the body portion
The method of claim 10,
The first part,
A magnetic material formed in the center of the first part and heated by the magnetic field,
A smart kettle comprising a non-magnetic material formed outside the first part to contact the magnetic material and non-heated by the magnetic field.
The method of claim 10,
The first portion forms an inner surface and an outer surface of the bottom portion, and comprises a magnetic material heated by the magnetic field.
The method of claim 10,
The first part,
A non-magnetic material that forms an inner surface of the bottom portion and is not heated by the magnetic field,
A smart kettle comprising a magnetic material that forms an outer surface of the bottom and is heated by the magnetic field.
The method of claim 10,
The first part,
A non-magnetic material that forms the inner and outer surfaces of the bottom and is not heated by the magnetic field,
Smart kettle including a magnetic material disposed inside the non-magnetic material and heated by the magnetic field.
The method of claim 10,
The first and second portions include a magnetic material heated by the magnetic field, and are integrally formed with a smart kettle.
delete The method of claim 9,
A temperature sensor disposed below the body portion and measuring a temperature of a lower surface of the body portion;
A power receiving coil disposed under the body portion and generating electricity using the magnetic field;
A power supply for providing the electricity received from the power receiving coil to the control unit,
Smart kettle further comprising a communication unit for wirelessly transmitting the control signal to the smart table.
The method of claim 17,
The temperature sensor is disposed at the center outside of the bottom of the body to measure the temperature of the body,
The control unit generates the control signal for adjusting the strength of the magnetic field generated by the smart table based on the temperature measured by the temperature sensor.
The method of claim 17,
An interface unit that receives an input from a user and determines a target temperature;
Further comprising a display for displaying the target temperature on the screen using a color or number,
The control unit, a smart kettle that adjusts the magnetic field generated by the smart table using the control signal so that the temperature measured by the temperature sensor reaches the target temperature.

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