KR102620378B1 - Beverage container with heat and automatic temperature control by wireless charging - Google Patents

Abstract

The present invention relates to a beverage container, and in particular, to a beverage container that can heat a beverage by charging power supplied from a wireless charging pad and generating heat by the charged power.
To this end, the present invention includes a container that is mounted on the wireless charging pad and accommodates a beverage; A power receiving module located in a space provided below the bottom of the container to receive and charge current induced from the wireless charging pad; a chip-shaped circuit unit that controls charging of the power receiving module and determines whether or not charged power is supplied; It is located below the inner bottom of the container in the space, and is composed of a PTC heater that heats the beverage received with the power charged in the power supply module under the control of the circuit section, and the outside of the circuit section and the PTC heater is covered with an insulating material. It is characterized by being insulated by.

Description

Beverage container with heat and automatic temperature control by wireless charging}

The present invention relates to a beverage container, and in particular, to a beverage container that charges power supplied from a wireless charging pad, heats the beverage by generating heat from the charged power, and automatically adjusts the temperature to prevent overheating. .

At home or in the office, ceramic containers such as mugs are often used to drink warm beverages such as coffee or tea. However, these ceramic beverage containers do not have excellent heat retention properties, so the problem is that the beverage contained inside easily cools down. there is.

Additionally, in order to drink a warm beverage, you either put the beverage in a separate container and then heat the beverage using a heating tool, or you put coffee or tea in the beverage container and then pour heated water into it. However, in this case, you drink water. It is very inconvenient to need a gas range, electric range, coffee pot, etc. for heating.

Therefore, recently, a heater and a wireless charger have been built into the beverage container to receive power from the wireless charging pad and then supply the charged power to the heater to heat the beverage or maintain the temperature of the heated beverage. A beverage container capable of generating heat has been proposed.

As an example of such a beverage container, as shown in Figure 1, a wireless charging pad 10 that generates an induced current by power supply; A container (20) mounted on the wireless charging pad (10) and containing a beverage; A power receiving module 30 located in the space S provided below the bottom of the container 20 to receive and charge current induced from the wireless charging pad 10; a circuit unit 40 in the form of a chip that controls charging of power to the power receiving module 30 according to the user's selection and determines whether or not to supply the charged power; A PTC heater (50) is located in close contact with the lower part of the bottom of the container 20 in the space (S) and heats the beverage received with the power charged in the water supply module 30 under the control of the circuit part 40. ); It is composed of.

Therefore, when the user places a beverage in the container 20 and then places it on the upper side of the wireless charging pad 10, the induced current generated from the wireless charging pad 10 is supplied to the receiving module 30 and the internal It is charged in the battery, and the PTC heater 50 operates by the charged power to heat or keep the beverage warm.

However, since the container 20 has a PTC heater 50 built into the space S formed below the bottom, the heat generated from the PTC heater 50 heats the beverage, but the heat also heats the container ( It is transmitted directly to the circuit part 40 along the wall of 20), and since the PTC heater 50 is exposed on the inside of the space S, heat due to radiant heat and convection is directly transferred to the circuit part 40. There is a problem in that the applied circuit part 40 in the form of a chip is damaged by heat.

That is, the beverage contained in the container 20 is typically heated to 60 to 100°C, so the temperature of the heat transferred from the PTC heater 50 is higher than the heat resistance temperature of the chip constituting the circuit unit 40, as shown in FIG. 2. In this case, the circuit part 40 is damaged by heat and does not operate normally, and as a result, the container 20 is overheated, resulting in a very high risk of safety accidents such as burns.

In addition, when heating a beverage without the beverage being accommodated in the container 20, the container 20 itself may be heated to over 100°C. However, when the beverage is accommodated in the container 20, the beverage serves as a coolant. As a result of heat exchange, the case in which the PTC heater 50 is rapidly overheated does not occur significantly, but when beverages are not accommodated, the PTC heater 50 is rapidly overheated, and the circuit part 40 is quickly damaged by the heat. If overheating is transmitted to the container 20 and the user touches the container 20 with his or her hand without knowing that it is in an overheated state, there is a very high risk of safety accidents such as burns occurring.

Additionally, this container 20 simply has the function of heating a beverage or maintaining a heated state, but does not have the function of maintaining the temperature of a cool or cold beverage, and thus has limitations in its intended use.

<Prior art literature>

1. Republic of Korea Patent Publication No. 10-2009-0040702

(Heating container using wireless charging)

2. Registered Patent No. 10-2248151

(Smart electric heating warmer)

3. Registered Patent No. 10-2038222

(Portable cup holder with wireless charging)

In order to solve these conventional problems, the present invention automatically adjusts the temperature of the beverage while preventing overheating of the PTC heater, prevents damage by preventing heat from the container from being transmitted to the circuit part, and prevents damage to the beverage contained in the container. The purpose is to provide a beverage container that generates heat and automatically regulates temperature through wireless charging that can be heated as well as cooled.

In order to achieve the above object, a beverage container with heat generation and automatic temperature control by wireless charging according to the first embodiment of the present invention,

A container that is placed on top of the wireless charging pad and holds a beverage;

A power receiving module located in a space provided below the bottom of the container to receive and charge current induced from the wireless charging pad;

a chip-shaped circuit unit that controls charging of the power receiving module and determines whether or not charged power is supplied;

A PTC heater is located below the inner bottom of the container in the space and heats the received beverage with the power charged in the water supply module under the control of the circuit unit.

The circuit part and the outside of the PTC heater are insulated by an insulating material, and the insulating material is composed of graphite.

Additionally, as a second embodiment of the present invention,

It is formed as a double container in which an outer container surrounds the outside of the inner container, and a lower space is formed on the lower part between the inner container and the outer container. A side space is formed on the side of the inner container and the outer container, and the lower space is formed on the side of the inner container and the outer container. A container formed to communicate with and receive power wirelessly from the wireless charging pad;

A power receiving module located in the lower space provided below the bottom of the container to receive and charge current induced from the wireless charging pad;

a chip-shaped circuit unit that controls charging of the power receiving module and determines whether or not charged power is supplied;

A PTC heater is located below the inner bottom of the container in the space and heats the received beverage with the power charged in the water supply module under the control of the circuit unit.

In addition, the wireless charging pad is further equipped with a power transmission module, a weight sensor, and a CPU, and the CPU compares the weight detected from the weight sensor with the preset weight of the container itself and transmits the comparison result to the container, According to the comparison result, the container is configured to perform a charging mode.

In addition, a temperature sensor is provided in close contact with the bottom of the container in the lower space, and the circuit unit controls the operation of the PTC heater based on the temperature detected by the temperature sensor.

Then, the outer container is coupled to be separable from the inner container, and an ice pack filled with coolant is inserted into the side space.

According to the present invention configured in this way, there is an advantage in preventing damage to the circuit part by preventing the heat generated from the PTC heater from being transferred to the circuit part only to the contained beverage due to the insulation structure.

In addition, if you place the container on the wireless charging pad without any beverage in it and want to heat it, the power supply is cut off to prevent the empty container from overheating, which not only prevents damage to the circuit part but also prevents safety accidents such as burns. It has the advantage of being able to prevent .

In addition, there is an advantage of being able to drink cool beverages as needed by inserting an ice pack into the side space of the double container.

Figure 1 is a diagram showing the cross-sectional structure of a beverage container that generates heat by general wireless charging.
Figure 2 is a graph showing the relationship between the temperature of the PTC heater according to the structure of Figure 2 and the chip heat resistance temperature of the circuit part.
Figure 3 shows a first embodiment of a beverage container with heat generation and automatic temperature control by wireless charging according to the present invention.
Figure 4 shows a second embodiment of the present invention.
Figure 5 shows a third embodiment of the present invention.
Figure 6 shows a fourth embodiment of the present invention.
Figure 7 shows another form of a container to which the present invention is applied.
Figure 8 is a diagram showing the exploded structure of the fifth embodiment of the present invention.
Figure 9 is a combined cross-sectional structural diagram of Figure 8.
Figure 10 is a circuit block diagram and a circuit diagram of the wireless charging pad applied to the present invention.
Figure 11 is a flow chart showing the sixth embodiment of the present invention.
Figure 12 is a diagram for explaining the temperature increase in a state in which a beverage is contained in a container and in a state in which a beverage is not contained in a container.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art will be able to easily implement the technical idea of the present invention.

In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

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

However, the embodiments of the present invention illustrated below may be modified into various other forms, and the scope of the present invention is not limited to the embodiments detailed below.

Examples of the present invention are provided to more completely explain the present invention to those skilled in the art.

Figure 3 is a diagram showing a first embodiment of a beverage container that generates heat by wireless charging according to the present invention, and the basic structure is the same or similar to the structure of the prior art shown in Figure 1.

That is, a wireless charging pad 10 that generates an induced current by power supply, a container 20 that is seated on the wireless charging pad 10 and accommodates a beverage, and a container 20 provided on the lower side of the bottom of the container 20. A power receiving module 30 located in the space S to receive and charge current induced from the wireless charging pad 10, and controlling the charging of power to the power receiving module 30 according to the user's selection, In addition, a chip-shaped circuit part 40 that determines whether or not the charged power is supplied is located in close contact with the bottom of the container 20 in the space S, and is controlled by the circuit part 40. The structure consisting of the PTC heater 50, which heats the beverage received with the power charged in the faucet module 30, is similar or identical.

However, in the first embodiment of the present invention, a structure is added to prevent the heat generated from the PTC heater 50 from being directly applied to the circuit unit 40 by the insulating material 51, and the container is made of ceramics like a mug. It can be.

The PTC heater 50 is fixed in close contact with the lower part of the bottom of the container 20, so that the generated heat is directly transmitted through the bottom of the container 20 to heat or insulate the beverage. This PTC heater ( The outside of 50) is covered with an insulating material 51 to prevent heat from being transferred to the circuit part 40 located below within the space S.

This insulating material 51 is made of graphite, and preferably consists of or contains expanded graphite to reduce thermal conductivity so that the heat generated from the PTC heater 50 is completely transmitted to the bottom of the container 20, By insulating the heat transmitted to the space (S), thermal efficiency is increased and radiant heat and convection heat transmitted to the space (S) are blocked to prevent the circuit portion 40 made of chips from being damaged by heat.

In order to more reliably protect the circuit part 40, the outside of the circuit part 40 is similarly covered with an insulating material 41, so that it can have a structure that completely blocks radiant heat and convection heat from the space S. there is.

Figure 4 is a second embodiment of the present invention, in which the PTC heater 50 is not in close contact with the bottom of the container 20, but is positioned to maintain a slight gap, and the bottom of the container 20 and the PTC heater 50 ), the heat insulating material 51 is located up to the upper part of the PTC heater 50 so that the heat generated from the PTC heater 50 is transferred to the bottom of the adjacent container 20, and is transmitted to the circuit part 40 through the body of the container 20. It may have a structure that prevents this.

Of course, the structure in which the circuit part 40 is also provided with the heat insulating material 41 is the same as that of the first embodiment of the present invention.

Figure 5 is a diagram showing the structure of the third embodiment of the present invention. The container 100 is composed of a double container, where the inner container 120 is located inside the cup-shaped outer container 110, and the outer container 110 ) is configured so that the upper part of the inner container 120 is in contact with each other, and similarly, the lower part of the container 100 has a lower part between the bottom part of the inner container 120 and the bottom part of the outer container 110. A space S is formed.

In addition, a side space (S1) is formed between the side of the outer container 110 and the side of the inner container 120, so that the heat generated from the PTC heater 50 is transferred only to the inner container 120, and the outer container 120 It is not transmitted to the (110) side, and in addition, the lower space (S) and the side space (S1) communicate with each other, so that the heat generated from the PTC heater (50) is transmitted to the lower space (S) and the side space (S1). ) is sufficiently cooled to have no significant effect on the circuit part 40.

That is, the structure described in Figure 1 allows heat generated from the PTC heater 50 to be transferred directly to the side part of the container 20 where the space S is located, thereby affecting the circuit part 40, and also to the space S. Since the size of the part S is limited, the structure is such that convection heat and radiant heat are not easily cooled. However, in the third embodiment of the present invention, the heat generated from the PTC heater 50 is transferred to the side portion of the inner container 120. As the heat is exchanged with the beverage inside and then transferred to the external container 110, the heat transferred to the circuit unit 40 through the body of the container 100 becomes very weak.

In addition, since convection heat and radiant heat can be sufficiently cooled in the wide space of the lower space S and the side space S1, the thermal influence on the circuit part 40 is also minimized.

Of course, as in the fourth embodiment of Figure 6, radiant heat can be prevented by providing an insulating material 51 in the PTC heater 50, and also providing an insulating material 41 in the circuit part 40 to prevent the effects of radiant heat and convection heat. By blocking, damage can be prevented.

In the above, the structure of the container 100 of the present invention is shown in a cup shape, but it can also be applied to a container having a plate shape as shown in FIG. 7.

In other words, by storing food in the dish-shaped container 100, the food can be consumed while being warmed for a relatively long period of time.

In this dish-shaped container 100, the inner container 120 has a very large contact area with food, so the heat transferred to the circuit part through the outer container 110 is weaker and has no effect.

Figure 8 is a road showing the fifth embodiment of the present invention, in which the lower part of the outer container 120 can be separated, thereby allowing the ice pack 200 to be accommodated in the side space S1.

That is, in order to drink cold beverages during the summer, etc., the cooled ice pack 200 is accommodated in the side space S1, and the cooling heat is transferred to the beverage inside through the inner container 120.

For this purpose, a separate lower container (110-1) is detachably coupled from the middle to the lower portion of the outer container (120). The lower container (110-1) is in the form of a ring with the upper and lower portions open, and has an upper circumference. A screw thread-shaped fastening portion 112 is formed along the .

Therefore, it is fastened by screwing with a fastening part formed along the lower circumference of the outer container 120, and when the lower container 110-1 is separated, the lower part of the side space S1 is open.

The ice pack 200 is formed in a ring shape with an open lower side and a height that matches the shape of the side space S1 so that it can be inserted into the side space S1, and the inside is filled with a coolant such as water. .

Figure 9 is a road showing a cross-sectional structure in which the lower container 110-1 is fastened with the ice pack 200 inserted into the side space S1, and the lower space S is the bottom of the outer container 110. It has a structure that cannot be opened due to the ring-shaped wall 114 connected to the portion, and only the lower container 110-1 portion is separated and can be separated to the lower side.

In this way, when the side space (S1) is opened and the cooled ice pack (200) is inserted into the side space (S1) and then the lower container (110-1) is fastened, the ice pack (200) is in the side space ( As it is stably accommodated in S1), cooling heat is supplied to the inner container 120 to cool the beverage.

In addition, the lower part of the lower container (110-1) is in contact with the wall 114 to airtighten the side space (S1). In order to improve airtightness, the inner circumference or wall of the lower part of the lower container (110-1) ( Packing 115 may be provided along the outer circumference of 114).

Meanwhile, a pressure sensor 45 is provided on the side of the wall 114. When the coolant such as water inside the ice pack 200 melts, the liquid coolant flows to the lower side of the ice pack 200 and the pressure sensor ( 45) High pressure is applied evenly.

Accordingly, the pressure value sensed by the pressure sensor 45 is received by the controller 46 and notified to the user through the display unit 47.

This display unit 47 may be formed of LED and installed to be exposed through the external container 20.

For each embodiment of the present invention, when the container (20,100) is placed on the wireless charging pad (100) without containing a beverage or the heating mode of the container (20,100) is selected, the container (20,100) Overheating may occur.

That is, when heated while the beverage is contained, the temperature slowly rises as shown in the graph of FIG. 12, and the beverage acts as a coolant due to heat exchange with the contained beverage, preventing overheating of the containers 20 and 100. , In a state where there is no beverage, since there is no coolant, the temperature rises quickly and overheating occurs.

Therefore, a temperature sensor 44 is further provided in contact with the bottom surface of the container 20, 100 in the lower space S, and the temperature value from the temperature sensor 44 is received from the controller 46 and is lower than the set temperature. If it is high, turn off the switch 43 to stop the operation of the PTC heater 50.

Through this operation, overheating of the containers 20 and 100 is prevented, and when a beverage is contained, the temperature of the beverage can be automatically maintained at a constant temperature.

As another form of resolving the overheating condition of the containers (20, 100), a weight sensor (13) can be provided on the wireless charging pad (10). When the containers (20, 100) are placed on the wireless charging pad (10), the weight The sensor 13 detects the weight and supplies it to the CPU 11, and the CPU 11 controls the power transmission module 12 through this to control the power supplied to the containers 20 and 100.

That is, the CPU 11 already knows the specific weight of the containers 20 and 100, receives the weight detected from the weight sensor 13, compares it with the specific weight, and determines that it is the same weight or within the set value, and the power transmission module The operation of (12) is stopped, and the comparison result is transmitted to the communication unit 48 of the containers 20 and 100 through the communication unit 140.

Accordingly, the communication unit 48 of the container 20 or 100 performs only a charging mode for charging the power received in the charging unit 42, and does not perform a heating operation by turning off the switch 43.

The communication units 14 and 48 communicate through short-distance communication such as Bluetooth, and when linked with the user's smartphone, they can notify the smartphone of the charging mode.

Figure 11 is a flowchart for automatically controlling the temperature of the beverage contained within the container (20, 100) placed on the wireless charging pad (10) and preventing overheating, showing the temperature change of the beverage through various experiments. The standard data value is stored in the controller 46, so that when the beverage is heated by the heater 50 with the reference value set, the controller 46 receives the temperature change value of the beverage from the temperature sensor 44.

At this time, if a beverage is contained in the containers 20 and 100, the controller 46 compares the temperature value detected by the temperature sensor 44 with the preset temperature reference value and, if it is within the normal range of the temperature reference value, The switch 430 is turned on so that the power received by it can be supplied to the heater 50.

As a result, the beverage in the containers 20 and 100 is heated, and by repeatedly performing this process, the temperature is automatically adjusted to maintain the heated temperature.

On the other hand, if the detected temperature value exceeds the temperature reference value and is outside the normal range, the containers 20 and 100 are overheated because the beverage is not contained, or are in an overheated state due to their own abnormal operation due to a failure of the circuit unit 40. would.

Therefore, the controller 46 transmits information about the overheating state to the communication unit 14 of the wireless charging pad 10 through the communication unit 48, and this causes the CPU 11 to stop the operation of the power transmission module 12. By blocking the power transmission function, the power supply to the containers 20 and 100 is blocked, thereby preventing the containers 20 and 100 from overheating.

In addition, the transmission module 12 can be put into sleep mode through 120 KHz wireless communication between the transmission module 12 and the power reception module 30, without communicating through the communication units 14 and 48, and the controller 46 ) wirelessly transmits information about the overheating state at 120 KHz to the power transmission module 12 through the power reception module 30, and the CPU 11 switches the power transmission module 12 to sleep mode accordingly to supply power. is blocked, and when the CPU (11) receives information that the overheating condition has been resolved through the power reception module (30) and the power transmission module (12), the power transmission module (12) is switched back to the operation mode to supply power. You will be able to.

As another method, when heating a beverage using power supplied from the wireless charging pad 40, the power supplied according to temperature changes in the containers 20 and 100 must be properly controlled to be cut off. For this purpose, the containers 20 and 100 must be properly controlled. By analyzing the change in the heating temperature and the change in the temperature at which the heat of the heater 50 is cut off and cooled, the container 20 and 100 in which the beverage is not accommodated is recognized by an algorithm, and the controller 46 uses the communication unit 48 A power supply cutoff signal is transmitted to the communication unit 14 of the wireless charging pad 10.

The controller 46 of the circuit unit 40 has temperature change data of the containers 20 and 100 being heated and temperature change data of the cooling containers, and monitors the temperature value input from the temperature sensor 44 to control the heater 50. If the temperature change of the containers (20, 100) increases rapidly during operation as shown in FIG. 12, it is determined that the beverage is not accommodated, and if the containers (20, 100) cool rapidly when the operation of the heater (50) is stopped. This can also be judged as a state in which the drink is not accepted.

Accordingly, the CPU 11 of the wireless charging pad 10 switches the power transmission module 12 to sleep mode to block the power supply to the power reception module 30.

In addition, it is possible to determine the amount of beverage according to the rate of increase or decrease in temperature. The CPU (11) also has data on the rate of increase or decrease in temperature according to the amount of beverage. If less beverage is accommodated, the beverage is accommodated. The temperature increases more slowly than in the unused state, but increases faster than in the case where a lot of beverages are accommodated, so the amount of beverage can be determined through this, and the CPU (11) provides information about the amount of beverage to the wireless charging pad ( By transmitting to 40), it will be possible to appropriately control the power supplied to the water faucet module 30 according to the amount of beverage.

Of course, when the power supply from the wireless charging pad 40 is cut off, the cooling speed varies depending on the amount of beverage contained in the containers 20 and 100, so the power supply state of the power transmission module 12 is controlled accordingly. If a small amount of beverage is accommodated, the cooling speed becomes faster, and if a large amount of beverage is accommodated, the cooling speed becomes relatively slow, so the controller 46 provides a signal for whether or not the power supply is blocked according to this temperature change. is transmitted to the wireless charging pad (40).

In the end, the presence or absence of beverage and the amount of beverage are determined according to the rate of increase/decrease of the temperature of the containers (20, 100) and the power supplied from the wireless charging pad (40) is appropriately cut off, thereby preventing overheating of the containers (20, 100) as well as overheating. This can prevent the risk of burns caused by contaminated containers.

In addition, in each of the above-mentioned embodiments, wireless communication can be performed through the communication units 14 and 48, but without necessarily using the communication units 14 and 43, through the transmission module 12 and the power reception module 30. Information may be transmitted at a frequency of 120KHz.

As the specific parts of the present invention have been described in detail above, it is clear to those skilled in the art that these specific techniques are merely preferred embodiments and do not limit the scope of the present invention. something to do.

Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

S,S1: space part
10: Wireless charging pad
11:CPU
12: Transmission module
13: Weight sensor
14: Department of Communications
20,100: Courage
30: Faucet module
40: circuit part
41: insulation
42: charging part
43: switch
44: Temperature sensor
45: pressure sensor
46: controller
47: display unit
48: Department of Communications
50: heater
51: insulation material
110: Inner container
110-1: Lower container
112: fastening part
114: wall
115: packing
120: External container
200: Ice pack

Claims (12)

delete delete It is formed as a double container with an outer container surrounding the outside of the inner container, and a lower space is formed in the lower part between the inner container and the outer container, and the lower space is formed on a ring-shaped wall connected to the bottom of the outer container. In addition to having a structure that is not openable, a side space is formed on the sides of the inner container and the outer container, and a separate lower container is detachably coupled from the middle to the lower portion of the outer container, and the lower container is connected to the upper portion. And it is in the form of a ring with an open lower part, and a thread-shaped fastening part is formed along the upper circumference, and is screwed and fastened with a fastening part formed along the lower circumference of the external container to open or airtight the lower part of the side space. It consists of a container that receives power wirelessly from a wireless charging pad;
A power receiving module located in the lower space provided below the bottom of the container to receive and charge current induced from the wireless charging pad;
A PTC heater located below the inner bottom of the container in the lower space and heating the received beverage with power charged in the water faucet module under the control of a circuit unit;
An ice pack formed in a ring shape that fits the shape of the side space so that it can be inserted into the side space, the inside of which is filled with a coolant and inserted into the side space in a cooled state;
a pressure sensor provided on a side of the wall to sense pressure applied from the coolant of the ice pack;
Heat generation and Thermostatically controlled beverage container.
According to claim 3, wherein the wireless charging pad is further equipped with a power transmission module, a weight sensor, and a CPU, and the CPU compares the weight detected from the weight sensor with the preset weight of the container itself and provides the comparison result to the container. A beverage container with heat generation and automatic temperature control by wireless charging, characterized in that the container is configured to perform a charging mode according to the comparison result.
The wireless charging method of claim 3, wherein a temperature sensor is provided in close contact with the bottom of the container in the lower space, and the circuit unit controls the operation of the PTC heater based on the temperature detected from the temperature sensor. A beverage container with heat generation and automatic temperature control.
delete delete The beverage container according to claim 3, wherein the circuit part and the outside of the PTC heater are insulated with an insulating material.
The beverage container according to claim 8, wherein the insulating material is graphite.
The method of claim 3, wherein the circuit unit detects the temperature of the beverage contained inside the container using a temperature sensor, and when the detected temperature exceeds a range of a preset temperature value, the circuit unit sends information about the overheating state to the wireless charging pad. A beverage container with heat generation and automatic temperature control by wireless charging, characterized in that it is configured to transmit and block the power supplied from the wireless charging pad.
The method of claim 3, wherein the circuit unit stores data on changes in the heating temperature and cooling temperature of the container, detects the temperature of the container by a temperature sensor, and compares the sensed temperature with previously stored data on changes in temperature. A beverage container with heat generation and automatic temperature control by wireless charging, characterized in that it is configured to determine whether the beverage is accommodated in the container and transmit the corresponding information to a wireless charging pad to determine power supply.
The beverage container according to claim 3, wherein the power transmission module and the power reception module provided in the wireless charging pad communicate wirelessly at 120 KHz.