KR20170101040A - induction cooker having wireless power transmitting for smart device - Google Patents

induction cooker having wireless power transmitting for smart device Download PDF

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Publication number
KR20170101040A
KR20170101040A KR1020160023710A KR20160023710A KR20170101040A KR 20170101040 A KR20170101040 A KR 20170101040A KR 1020160023710 A KR1020160023710 A KR 1020160023710A KR 20160023710 A KR20160023710 A KR 20160023710A KR 20170101040 A KR20170101040 A KR 20170101040A
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KR
South Korea
Prior art keywords
unit
power supply
smart device
charging
coil part
Prior art date
Application number
KR1020160023710A
Other languages
Korean (ko)
Inventor
민병덕
조정구
유주승
김준호
Original Assignee
(주)그린파워
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Priority to KR1020160023710A priority Critical patent/KR20170101040A/en
Publication of KR20170101040A publication Critical patent/KR20170101040A/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J7/025—
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like

Abstract

The present invention relates to a technology for supplying a heat source to an induction cooker for heating a cooking vessel and wirelessly charging electric power to an external smart device. The induction cooker is a mode for selecting a mode, And to charge the smart device with power in the wireless power charging mode. According to the present invention, by implementing a wireless charging function for a smart device as a differentiated new option that can not achieve the general gas range of the induction cooker, which is relatively inefficient compared to other general kitchen cooking devices such as a gas range, There is an advantage that the usability of the user for the mobile terminal is improved.

Description

Smart device wireless induction induction cooker {induction cooker having wireless power transmitting for smart device}

The present invention relates to a technology for supplying a heat source to an induction cooker for heating a cooking vessel and for wirelessly charging electric power to an external smart device.

More specifically, the present invention is a technology that allows the induction cooker to operate as an original induction cooker for cooking in the cooker load generating mode through mode selection and to charge the power to the smart device in the wireless power charging mode.

Generally, a large number of induction cookers for cooking are installed in a kitchen. The induction cooker has a flat top surface. When a cooking vessel (for example, a metal vessel) is placed on the flat top surface thereof, Allow the contents of the cooking vessel to be cooked.

That is, a general induction cooker directly heats a metallic cooking vessel, which is seated on the upper surface of the induction cooker, for cooking.

However, the induction cooker installed in the kitchen of the apartment generates a heat source through the electrical resonance of the coil, unlike a general gas range, while the cooking vessel is limited and its utilization is poor. Therefore, There is a need to implement differentiated new options that can not be achieved in the range.

Korean Patent Application No. 10-2006-0054758 "Induction Heating Coil for Induction Cooker" Korean Patent Application No. 10-2006-0032582 "Induction Range Using Piste Tien and Control Method Thereof" Korean patent application No. 10-2009-0079238 "Induction range using high frequency induction heating" Korean Patent Application No. 10-2011-0016002 "Induction Range Operable by Instantaneous Operation during Heating Operation" Korea Utility Model Registration Application 20-2004-0009069 "Power Supply of Induction Range Applied Switching Circuit Method"

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a smart appliance wirelessly charging type smart appliance capable of wireless charging as a new option differentiated by utilizing electromagnetic induction, Provides induction cooker.

In order to achieve the above object, the smart device wirelessly-charged induction cooker according to the present invention includes a diode rectifier connected to both terminals of an AC power supply unit and connected to an AC power supply unit, an inverter connected to the diode rectifier unit, An induction cooking unit having an inductance coil part connected to the inverter in parallel to form a closed circuit and providing a heat source to an external load by wirelessly transmitting electric power by electromagnetic induction; A smart device charging unit connected to both terminals of the AC power supply unit and electrically connected to the AC power supply unit and having a transmitter coil part for charging an external smart device by wirelessly transmitting power to the outside by electromagnetic induction; (Hereinafter referred to as a 'wireless power charging mode') in which the transmitter coil part wirelessly transmits electric power to an external smart device through an electromagnetic induction furnace and a mode in which the inductance coil part supplies a heat source to an external load An operation mode selection control unit for selectively controlling AC flow from the AC power supply unit to a part of the inductance coil or a part of the transmitter coil corresponding to the identified mode by identifying a user operation for any one of the modes; .

At this time, the transmitter coil portion is radially wound on a horizontal plane so that it can be wirelessly charged to an external smart device, and the inductance coil portion is formed on the same horizontal plane as the transmitter coil portion wound at a position spaced apart from the outermost periphery of the transmitter coil portion It is preferable to be wound radially.

Preferably, the smart device charging unit is disposed at a lower portion on a horizontal surface on which the transmitter coil is wound, and interfuses the AC power supply unit to apply an AC for charging the external smart device to the transmitter coil unit. And is connected between the AC power supply unit and the wireless charging circuit unit to switch on / off the application of current from the AC power supply unit to the wireless charging circuit unit. In the cooker load generation mode, the AC power supply unit is switched off in response to the control of the operation mode selection control unit, And a current interrupting relay switch for interrupting a current applied to the circuit portion.

The smart device charging unit is preferably connected between the wireless charging circuit unit and the transmitter coil unit and is switched on and off according to the control of the operation mode selection control unit and switched off under the control of the operation mode selection control unit in the cooker load charging mode, And a voltage blocking relay switch for blocking a high voltage induced in the wireless charging circuit from the coil part.

On the other hand, the operation mode selection control section may be configured to turn off the operation of the inverter so that the supply of the AC from the inverter to the inductance coil part is cut off in the wireless power charging mode.

According to the present invention, there is an advantage that one induction cooker can be used as a cooking tool and can be used as a device capable of wirelessly charging an external smart device.

Further, according to the present invention, there is an advantage that a cooker load generation mode that operates as an induction cooker and a user selection operation of a wireless power transmission mode that operates as a wireless power transmission device are simple because of having an operation mode selection control section.

In addition, according to the present invention, by implementing a wireless charging function for a smart device as a differentiated new option that can not achieve the general gas range of the induction cooker, which is relatively inefficient compared to other general kitchen cooking devices such as a gas range There is an advantage of improving the usability of smart devices.

1 is a circuit diagram of a general induction cooker and an enlarged view of an inductance coil part thereof,
2 is a circuit configuration diagram of a smart charging device of the smart charging device according to the present invention;
3 is an enlarged view of an inductance coil part and a transmitter coil part of Fig. 2, Fig.
[FIG. 4] is a flowchart illustrating an operation process by control of an operation mode selection control unit according to the present invention.

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

FIG. 1 is a circuit diagram of a general induction cooker and an example of an enlarged illustration of the inductance coil part thereof.

First, referring to FIG. 1 (a), a general induction cooker is composed of a diode rectifying section 21, an inverter 22, and an inductance coil section 23.

The diode rectifying unit 21 is connected to both terminals of the AC power supply unit 10 and is energized with the AC power supply unit 10.

The alternating current supplied from the alternating-current power supply unit 10 is converted into a direct current through the diode rectifying unit 21 and applied to the inverter 22.

The inverter 22 is connected to the diode rectifier 21 and is energized with the diode rectifier 21. At this time, the inverter 22 converts the direct current applied from the diode rectifying section 21 to alternating current and applies it to the inductance coil section 23 so that the resonance occurs in the inductance coil section 23.

At this time, when the cooker 30, which is a cooking vessel, is placed on the inductance coil part 23, electromagnetic field lines induced in the inductance coil part 23 generate heat by using the cooker 30 as a load.

Referring to FIG. 1 (b), the inductance coil portion 23 is preferably formed in a shape that is radially wound to correspond to the bottom surface width of the cooker 30 in order to effectively generate heat in the cooker 30 .

However, due to the constitutional characteristic of such an induction cooker, the cooking container for cooking is very limited and the applicability thereof is low.

In spite of the disadvantage that it is inferior in its usability, it generates a heat source through electrical resonance of the coil, unlike a gas cooking range, which is a general cooker, so that electromagnetic induction generated in the electrical resonance can be utilized to achieve a differentiated new Option, which is a wireless charging technique by electromagnetic induction.

Hereinafter, a smart device charger capable of wirelessly charging a smart device in the configuration of the general induction cooker will be described below, and the present invention will now be described in which the induction cooker can be used for both cooking and charging.

FIG. 2 is a circuit diagram of a smart-device wirelessly-charged induction cooker according to the present invention. 3 is an enlarged view of the inductance coil part and the transmitter coil part of Fig. 2; Fig.

3 and 4, a smart-device wirelessly-charged induction cooker according to the present invention includes an induction cooking pot 200, a smart device charger 300, and an operation mode selection controller 400, do.

The induction cooking stove 200 includes a diode rectifying part 210 connected to both terminals of the AC power supply part 100 and connected to the AC power supply part 100 as a general induction cooker, An inductor 220 connected in parallel to the inverter 220 and connected in parallel to the inductor 220 and connected in parallel to the inductor 220 and providing a heat source to an external load as a power is transmitted by electromagnetic induction, (230).

Here, the 'heat source' refers to a configuration in which the inductance coil part 230 has a structure in which the external load directly generates heat directly from the power applied by electromagnetic induction from the inductance coil part 230 Means the power supplied to the external load.

The smart device charger 300 is integrally installed in the induction cooking pot 200 and charges the external smart device wirelessly. The smart device charger 300 preferably includes a transmitter coil part 310, a wireless charging circuit part 320, A switch 330, and a voltage cutoff relay switch 340.

First, the transmitter coil part 310 is connected to both terminals of the AC power supply part 100 separately from the induction cooking stove part 200, and is energized with the AC power supply part 100 and transmits electric power to the outside by electromagnetic induction Thereby charging the external smart device.

Here, as shown in FIG. 3, it is preferable that the transmitter coil part 310 is radially wound on a horizontal plane so that the external smart device can be wirelessly charged. In this case, in order to construct the transmitter coil part 310 while maintaining the structural characteristics of a general induction cooker, it is preferable that the inductance coil part 230 is wound, It is coiled together.

Meanwhile, the inductance coil part 230 is radially wound on the same horizontal plane as the transmitter coil part 310 wound at a position spaced a predetermined distance from the outermost periphery of the transmitter coil part 310 as shown in FIG.

Thus, the inductance cooker of the present invention, realized as a single product by implementing the transmitter coil portion 310 and the inductance coil portion 230 on the same plane, is apparently identical to a general inductance cooker, It also adds wireless charging technology.

Preferably, the wireless charging circuit unit 320 is structurally arranged such that the transmitter coil unit 310 is spaced apart from the horizontal surface yarn by a predetermined distance and is connected to the wire.

That is, the wireless charging circuit unit 320 may include components for interfacing the AC power supply unit to the AC power supply unit so as to apply an alternating current for charging the external smart device. In the 'cooker load generating mode', the inductance coil unit 230, It is desirable to maintain a certain distance from the heat generated in the heat exchanger.

The current cutoff relay switch 330 is connected between the AC power supply unit 100 and the wireless charging circuit unit 320 and is connected to the wireless charging circuit unit 320 in the AC power supply unit 100 under the control of the operation mode selection control unit 400. [ Off of the application of the current to the second switch SW1.

At this time, the current cutoff relay switch 330 is switched off according to the control of the operation mode selection controller 400 in the 'cooker load generation mode' to cut off the current applied from the AC power supply unit 100 to the wireless charging circuit unit 320 .

The current cutoff relay switch 330 is switched on under the control of the operation mode selection controller 400 in the 'wireless power charge mode' so that the AC power supply unit 100 applies a current to the wireless charging circuit unit 320 .

The voltage cutoff relay switch 340 is connected between the wireless charging circuit unit 320 and the transmitter coil unit 310 and is switched on and off under the control of the operation mode selection control unit 400 so that the wireless charging circuit unit 320, And energizes or isolates the part 310. [

At this time, the voltage cutoff relay switch 340 is switched off under the control of the operation mode selection controller 400 in the 'cooker load generation mode' to shut off the high voltage induced in the wireless charging circuit 320 from the inductance coil part 230 .

The voltage cutoff relay switch 340 is switched on in accordance with the control of the operation mode selection control unit 400 in the 'wireless power charge mode' so that AC is applied from the inductance coil unit 230 to the wireless charging circuit unit 320 .

Meanwhile, the operation mode selection control unit 400 controls the mode of the transmitter coil unit 310 to transmit power wirelessly to the external smart device (hereinafter referred to as a 'wireless power charging mode') and the inductance coil unit (Hereinafter, referred to as a 'cooker load generating mode') for providing a heat source to the induction cooking pot 200 and the smart appliance charging unit 300.

That is, when the operation mode selection control unit 400 identifies the user operation corresponding to the operation mode selection to the user button operation unit (not shown) separately provided to the induction cooker of the present invention, So that alternating current flows selectively from the AC power supply unit 100 to the inductance coil unit 230 or the transmitter coil unit 310.

On the other hand, the operation mode selection control unit 400 turns off the operation of the inverter 220 so that the supply of AC from the inverter 220 to the inductance coil part 230 is interrupted in the 'wireless power charging mode'.

[FIG. 4] is a flowchart illustrating an operation process by control of an operation mode selection control unit according to the present invention.

Step S100: First, the operation mode selection control unit 400 monitors a user button operation unit (not shown) provided separately to the induction cooker of the present invention to identify a user operation corresponding to the operation mode selection.

Hereinafter, a control process of the operation mode selection controller 400 will be described so that the induction cooker operates in the 'cooker load generation mode' according to the user operation identification of the operation mode selection controller 400.

Step S111: The operation mode selection controller 400 switches off the current cutoff relay switch 330 so that AC is not applied to the transmitter coil part 310 first. Then, the voltage switching relay switch 340 is turned off to isolate the wireless charging circuit unit 320 from the transmitter coil unit 310.

That is, by switching off the voltage cutoff relay switch 340 in advance, a high voltage generated in the inductance coil part 230 during the operation of the 'cooker load generation mode' is induced in the wireless charging circuit part 320, ) Is essentially blocked.

The operation mode selection control unit 400 transmits a control signal to the inverter 220 so that the inverter 220 is operated and the current applied from the AC power supply unit 100 through the diode rectifying unit 210 To the inductance coil part 230 so that the inductance coil part 230 heats the cooker 30 according to electromagnetic induction.

The control process of the operation mode selection controller 400 to operate the induction cooker in the 'wireless power charge mode' according to the user operation identification of the operation mode selection controller 400 will be described below.

Step S121: The operation mode selection control unit 400 first turns off the operation of the inverter 220 to block the AC from being applied to the inductance coil part 230 from the inverter 220.

As a result, since the inductance coil part 230 does not operate in a turned-off state, there is no fear that a high voltage will be induced through the transmitter coil part 310.

The operation mode selection control unit 400 then turns on the current cutoff relay switch 330 and the voltage cutoff relay switch 340 so that the current supplied from the AC power supply unit 100 is switched to the wireless And is applied to the transmitter coil part 310 via the charging circuit part 320. [

As a result, when the smart device is placed on the upper surface of the induction cooker, that is, on the upper surface of the coiled transmitter coil portion 310 as shown in FIG. 3, the smart device can be securely and wirelessly driven by the electromagnetic induction of the transmitter coil portion 310 Is charged.

10: AC power supply
21: Diode rectification part
22: Inverter
23: Inductance coil part
30: Cooker (load)
100: AC power supply
200: Induction range device
210: Diode rectification part
220: Inverter
230: Inductance coil part
300: smart device charger
310: Transmitter coil part
320: Wireless charging circuit
330: Current interruption relay switch
340: Voltage cutoff relay switch
400: Operation mode selection control unit

Claims (5)

A diode rectification part 210 connected to both terminals of the AC power supply part 100 to be energized with the AC power supply part, an inverter 220 connected to the diode rectification part and connected to the diode rectification part, An induction cooking unit 200 having an inductance coil part 230 that provides a heat source to an external load in the form of a closed circuit and transmits power wirelessly by electromagnetic induction;
And a transmitter coil part (310) connected to both terminals of the AC power supply part and connected to the AC power supply part to charge the external smart device by wirelessly transmitting electric power by electromagnetic induction to the outside, 300);
(Hereinafter, referred to as a 'wireless power charging mode') in which the transmitter coil part wirelessly transmits power to the smart device outside the electromagnetic induction furnace and a mode in which the inductance coil part supplies a heat source to an external load Load generating mode '), the AC power is selectively controlled to flow from the AC power supply unit to the inductance coil part or the transmitter coil part correspondingly to the identified mode An operation mode selection control unit 400;
A smart-device wirelessly-charged induction cooker comprising:
The method according to claim 1,
The transmitter coil portion 310 is radially wound on a horizontal surface to enable wireless charging for an external smart device,
Wherein the inductance coil part (230) is radially wound on the same horizontal surface as the coiled part of the transmitter coil at a position spaced from the outermost part of the transmitter coil part by a predetermined distance.
The method of claim 2,
The smart device charging unit (300)
A wireless charging circuit part (320) disposed below the horizontal surface on which the transmitter coil part is wound to interface the AC power supply part to apply AC for charging the external smart device to the transmitter coil part;
And a switching circuit which is connected between the AC power supply unit and the wireless charging circuit unit to switch on / off the application of current from the AC power supply unit to the wireless charging circuit unit and switches off in accordance with the control of the operation mode selection control unit in the coober load generation mode A current interrupting relay switch (330) for interrupting a current applied to the wireless charging circuit from the AC power supply;
Further comprising: a charging device for charging the induction cooker.
The method of claim 3,
The smart device charging unit (300)
And a control unit connected between the wireless charging circuit unit and the transmitter coil unit for switching on and off according to the control of the operation mode selection control unit and being switched off under the control of the operation mode selection control unit in the cooker load generation mode, A voltage blocking relay switch (340) for blocking a high voltage induced in the wireless charging circuit;
Further comprising: a charging device for charging the induction cooker.
The method of claim 4,
Wherein the operation mode selection controller (400) turns off the operation of the inverter so that the supply of AC from the inverter to the inductance coil part is interrupted in the wireless power charging mode.
KR1020160023710A 2016-02-26 2016-02-26 induction cooker having wireless power transmitting for smart device KR20170101040A (en)

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KR1020160023710A KR20170101040A (en) 2016-02-26 2016-02-26 induction cooker having wireless power transmitting for smart device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102174102B1 (en) * 2019-06-24 2020-11-05 박상인 Multipurpose Portable Induction Device
CN112398188A (en) * 2019-08-19 2021-02-23 广东美的白色家电技术创新中心有限公司 Electrical equipment and working method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102174102B1 (en) * 2019-06-24 2020-11-05 박상인 Multipurpose Portable Induction Device
CN112398188A (en) * 2019-08-19 2021-02-23 广东美的白色家电技术创新中心有限公司 Electrical equipment and working method thereof

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