WO2019225935A1 - Dispositif de chauffage par induction à structure de connexion de bobine de travail améliorée - Google Patents

Dispositif de chauffage par induction à structure de connexion de bobine de travail améliorée Download PDF

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Publication number
WO2019225935A1
WO2019225935A1 PCT/KR2019/006040 KR2019006040W WO2019225935A1 WO 2019225935 A1 WO2019225935 A1 WO 2019225935A1 KR 2019006040 W KR2019006040 W KR 2019006040W WO 2019225935 A1 WO2019225935 A1 WO 2019225935A1
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WIPO (PCT)
Prior art keywords
working coil
induction heating
inverter
indicator
controller
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PCT/KR2019/006040
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English (en)
Korean (ko)
Inventor
황보경수
김성준
옥승복
Original Assignee
엘지전자 주식회사
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Publication of WO2019225935A1 publication Critical patent/WO2019225935A1/fr

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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
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication
    • 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
    • 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
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • 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
    • 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
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
    • 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
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1272—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with more than one coil or coil segment per heating zone
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate

Definitions

  • the present invention relates to an induction heating apparatus having an improved working coil connection structure.
  • the heating method of heating the heated object using electricity is largely divided into resistance heating and induction heating.
  • the electrical resistance method is a method of heating a heated object by transferring heat generated when a current flows through a non-metallic heating element such as a metal resistance wire or silicon carbide to the heated object (for example, a cooking vessel) through radiation or conduction.
  • the induction heating method uses a magnetic field generated around the coil when high frequency power of a predetermined size is applied to the coil to generate an eddy current in the heating element made of a metal component so that the heating element itself is heated. to be.
  • the induction heating apparatus to which the induction heating system is applied is generally provided with the walking coil in the corresponding area
  • an induction heating apparatus that is, a ZONE FREE type induction heating apparatus
  • a ZONE FREE type induction heating apparatus that simultaneously heats one object with a plurality of working coils
  • the heated object can be inductively heated regardless of the size and position of the heated object in a region where a plurality of working coils are present.
  • connection terminals of each of the plurality of working coils installed in the zone-free induction heating apparatus are connected to the inverter unit installed on the inverter substrate. Referring to FIGS. 1 and 2, the conventional induction heating apparatus will be described.
  • FIGS. 1 and 2 are schematic diagrams for explaining a working coil connection structure of a conventional induction heating apparatus.
  • a conventional induction heating apparatus includes a plurality of working coils WC1 to WC6, and each of the working coils WC1 to WC6 has two connection terminals.
  • each of the working coils WC1 to WC6 may be driven by being connected to an inverter substrate 400 (that is, an inverter unit provided in the inverter substrate).
  • an inverter substrate 400 that is, an inverter unit provided in the inverter substrate.
  • each of the working coils WC1 to WCn may be fastened to the connectors CN1 to CNn provided in the inverter board 400. Accordingly, each of the working coils WC1 to WCn may be driven by an inverter unit provided in the inverter substrate 400.
  • connection terminals of the first working coil WC1 may be directly coupled to the first connector CN1
  • connection terminals of the second working coil WC2 may be directly coupled to the second connector CN2. have.
  • connection terminals of the plurality of working coils WC1 to WCn are all extended and fastened to the plurality of connectors CN1 to CNn provided in the inverter board 400, a considerable amount of Since the wire for a long working coil is needed, the problem of manufacturing cost rises.
  • connection and assembling itself of the working coil wire becomes difficult, and a problem arises that it is difficult to secure a circuit arrangement area inside the induction heating apparatus. In addition, it is difficult to secure the circuit arrangement area, which increases the difficulty of circuit design, thereby lowering productivity.
  • the induction heating apparatus is disposed below the working coil, the indicator substrate is provided with a common pattern terminal connected to one terminal of the working coil, and an inverter unit for applying a resonance current to the working coil is provided, the common pattern terminal It is possible to improve the working coil connection structure by including an inverter substrate having a first connector connected to and a second connector connected to the other terminal of the working coil.
  • the induction heating apparatus includes an indicator control unit communicating with the main control unit in an I2C (Inter Integrated Circuit) method, and an inverter control unit communicating with the main control unit in a UART (Universal asynchronous receiver / transmitter) method. It can be improved.
  • I2C Inter Integrated Circuit
  • UART Universal asynchronous receiver / transmitter
  • the induction heating apparatus can improve the working coil connection structure, so that the connection and assembly of the working coil wires can be facilitated, and thus, the circuit arrangement area inside the induction heating apparatus can be easily secured.
  • the circuit design difficulty can be lowered by securing a circuit arrangement area, and thus productivity can be improved.
  • the working coil connection structure can be improved to reduce the length of some working coil wires, thereby reducing manufacturing costs.
  • the working coil connection structure can be improved to prevent the wire from being damaged due to wire entanglement.
  • the induction heating apparatus can improve the communication efficiency between the control unit by improving the internal communication method. Furthermore, product reliability can be improved by improving communication efficiency between the controllers.
  • FIGS. 1 and 2 are schematic diagrams for explaining a working coil connection structure of a conventional induction heating apparatus.
  • FIG. 3 is a plan view illustrating an induction heating apparatus according to an embodiment of the present invention.
  • FIG. 4 is a partial perspective view illustrating the induction heating device of FIG. 3.
  • FIG. 5 and 6 are partially enlarged views of the induction heating apparatus of FIG. 4.
  • FIG. 7 is a partial cross-sectional view of the induction heating apparatus of FIG. 4.
  • FIG. 8 is a partially enlarged view of FIG. 7.
  • FIG. 9 is a block diagram illustrating a control flow of the induction heating apparatus of FIG. 3.
  • FIG. 10 is a schematic view for explaining a working coil connection structure of the induction heating apparatus of FIG.
  • FIG. 3 is a plan view illustrating an induction heating apparatus according to an embodiment of the present invention.
  • 4 is a partial perspective view illustrating the induction heating device of FIG. 3.
  • 5 and 6 are partially enlarged views of the induction heating apparatus of FIG. 4.
  • 7 is a partial cross-sectional view of the induction heating apparatus of FIG. 4.
  • 8 is a partially enlarged view of FIG. 7.
  • FIG. 4 is a diagram omitting some components (eg, an input interface and a working coil assembly, etc.) of the induction heating apparatus 1 of FIG. 3 for convenience of description, and FIG. 6 is for convenience of description.
  • some components for example, some light guides of the induction heating apparatus 1 of FIG. 4 are omitted.
  • an induction heating apparatus 1 includes a case 125, a cover plate 119, a base plate 145, an indicator substrate support 170, and an indicator substrate. 175, a light emitting device 177, a light guide 210, a blowing fan 230, an input interface 300, an input interface substrate 310, and a working coil assembly (WCA).
  • WCA working coil assembly
  • the case 125 includes a working coil assembly (WCA), a base plate 145, an indicator substrate support 170, an indicator substrate 175, a light emitting element 177, a light guide 210, a blowing fan 230, and an input.
  • WCA working coil assembly
  • a base plate 145 an indicator substrate support 170, an indicator substrate 175, a light emitting element 177, a light guide 210, a blowing fan 230, and an input.
  • Various components constituting the induction heating apparatus 1 such as the interface substrate 310 and the inverter substrate (400 of FIG. 9) may be installed.
  • the inverter substrate (400 in FIG. 9) inside the case 125 includes various devices related to driving the working coil WC (for example, a power supply unit for supplying AC power and an AC power supply unit rectifying AC power with DC power).
  • An inverter unit (IV in FIG. 9), an inverter unit (IV in FIG. 9), and parts related to driving the rectifier unit and the DC unit rectified by the rectifying unit are converted into resonant currents through a switching operation and provided to the working coil WC.
  • Inverter control unit (400 'of FIG. 9) a relay or a semiconductor switch to turn on or off the working coil (WC) for controlling them may be installed, but a detailed description thereof will be omitted.
  • case 125 may be thermally insulated to prevent leakage of heat generated by the working coil WC to the outside.
  • the cover plate 119 may be coupled to an upper end of the case 125 to shield the inside of the case 125, and a heating body (not shown) may be disposed on an upper surface thereof.
  • the cover plate 119 may include an upper plate 115 (that is, an upper surface of the cover plate 119) for placing a heated object such as a cooking container, and the heat generated from the working coil WC may be The upper plate 115 may be transferred to the heated object.
  • the upper plate 115 may be made of, for example, a glass material, the upper plate 115 receives an input from the user and transfers the input to the main control unit 310 ′ of FIG. 9 to be described later. 300 may be provided, but is not limited thereto. That is, the input interface 300 may be provided at a position other than the upper plate 15.
  • the input interface 300 is a module for inputting a heating intensity or driving time of the induction heating apparatus 1 desired by the user, and may be variously implemented as a physical button or a touch panel.
  • the input interface 300 may include, for example, a power button, a lock button, a power level control button (+,-), a timer control button (+,-), a charging mode button, and the like.
  • the input interface 300 may be controlled by the main controller 310 ′ of FIG. 9 installed in the input interface substrate 310, and may transmit an input provided from a user to the main controller 310 ′ of FIG. 9. .
  • the main controller 310 ′ of FIG. 9 may transmit the input to at least one of the above-described inverter controller 400 ′ of FIG. 9 and the indicator controller 175 ′ of FIG. 9.
  • the main controller 310 ′ of FIG. 9 may be communicatively connected to the inverter controller 400 ′ of FIG. 9 and the indicator controller 175 ′ of FIG. 9, which will be described later.
  • the working coil assembly WCA may include the working coil WC, the ferrite core 126, and the mica sheet 120 (that is, the first mica sheet) and may be installed in the base plate 145.
  • the induction heating apparatus 1 when the induction heating apparatus 1 is a zone-free induction heating apparatus, there may be a plurality of working coil assemblies WCA as shown in FIGS. 3 and 4, and a plurality of working coil assemblies (eg, For example, the WCAs may be arranged to be spaced apart from each other by a predetermined interval.
  • the working coil WC may be formed of a conductive wire wound in a plurality of rings and may generate an alternating magnetic field.
  • the mica sheet 120 and the ferrite core 126 may be sequentially disposed below the working coil WC.
  • the ferrite core 126 may be disposed below the working coil WC, and a core hole (not shown) may be formed at a central portion thereof so as to overlap the annular inner side of the working coil WC in a vertical direction.
  • the base plate 145 may be disposed below the ferrite core 126, and the mica sheet 120 may be disposed between the ferrite core 126 and the working coil WC.
  • the ferrite core 126 may be fixed to the mica sheet 120 through a sealant, and may serve to diffuse an alternating magnetic field generated by the working coil WC.
  • a packing gasket 149 may be fastened to the core hole so that the ferrite core 126 may be fixed to the base plate 145, and the packing gasket 149 may be disposed on the top of the packing gasket 149.
  • the sensor S may be installed. That is, the sensor S may be installed in the annular inner side of the working coil WC.
  • the sensor S may detect the temperature of the working coil WC.
  • the sensor S may detect the temperature of the upper plate 115 or the operation of the working coil WC, but in one embodiment of the present invention, the sensor S detects the temperature of the working coil WC. This will be described as an example.
  • the sensor S may detect the temperature of the working coil WC and transmit the detected temperature information to the indicator controller 175 'of FIG. 9 to be described later.
  • the mica sheet 120 (that is, the first mica sheet) is disposed between the working coil WC and the ferrite core 126, and has a seat hole (not shown) so as to overlap the annular inner side of the working coil WC in a vertical direction at the center thereof. ) May be formed.
  • the mica sheet 120 may be fixed to the working coil WC and the ferrite core 126 through a sealant, and the heat generated by the working coil WC may be directly transferred to the ferrite core 126. You can prevent it.
  • the second sheet hole is fixed to the induction heating apparatus 1 through a sealant at an upper end of the working coil WC, and overlaps in a vertical direction with an annular inner side of the working coil WC at the center thereof.
  • a second mica sheet (not shown) in which (not shown) is formed may be further included.
  • the working coil assembly WCA is installed on the base plate 145.
  • the ferrite core 126, the mica sheet 120, and the working coil WC are sequentially stacked on the base plate 145, and the base plate 145 is disposed upward (ie, upward) from the indicator substrate 175. It may be arranged to be spaced apart in one direction of the vertical direction). That is, the indicator substrate 175 may be disposed below the base plate 145 to be spaced apart from the base plate 145.
  • an air flow path is formed between the base plate 145 and the indicator substrate 175, and thus cool air circulation is possible through the air flow path, thereby reducing the temperature of the working coil WC and the light emitting device 177.
  • a blower fan 230 may be installed at a lower side of one side of the case 125, and the cool air sucked from the outside by the blower fan 230 may be the air path described above. It can be blown.
  • connection hole 172 may be formed in the space between the ferrite cores of the base plate 145 to secure the space of the connection portion 171.
  • connection part 171 may be installed to protrude from the indicator substrate 175 for conducting wires (ie, wire) arrangement and electrical connection of the working coil WC.
  • the base plate 145 may be formed in one piece, for example, and made of aluminum (Al), but is not limited thereto.
  • the light guide 210 may be installed on the base plate 145.
  • the light guide 210 may be installed at the base plate 145 to be provided around the working coil WC. That is, four light guides (eg, 210) per one working coil WC may be installed around the corresponding working coil WC.
  • a light guide installation hole 147 for installing the light guide 210 may be formed in the space between the ferrite cores in the base plate 145. That is, the light guide installation hole 147 may be formed in the base plate 145 along the position where the light guide 210 is installed. Accordingly, the light guide mounting hole 147 may also be formed around the working coil WC, and four light guide mounting holes (for example, 147) per one working coil WC correspond to the corresponding working coil WC. It may be formed around the.
  • the light guide installation hole 147 may be formed so as not to overlap with the connection hole 172, and the number of the light guide installation holes 147 may be the same as the number of the light guides 210.
  • light emitted from the light emitting element 177 installed in the indicator substrate 175 may be transmitted to the light guide 210 through the light guide installation hole 147.
  • the indicator substrate 175 is disposed below the base plate 145 to be spaced apart from the base plate 145, and a plurality of light emitting devices (eg, 177) may be installed.
  • the indicator substrate 175 may be installed on the indicator substrate support 170 so as to be spaced apart from the base plate 145 downwardly (ie, in another direction of the vertical direction).
  • the indicator substrate 175 may be provided with a plurality of light emitting devices (for example, 177), and the plurality of light emitting devices (for example, 177) may be, for example, light emitting diodes (LEDs).
  • the indicator substrate 175 may be implemented, for example, in the form of a PCB (ie, a printed circuit board), and whether the driving coil WC is driven through a plurality of light emitting devices (eg, 177).
  • the heating intensity ie, thermal power
  • the indicator substrate 175 may further include various components for driving a plurality of light emitting devices (for example, 177).
  • the indicator substrate 175 is provided with a common pattern terminal (for example, CPT1 to CPTm of FIG. 10; m is a natural number of 2 or more) connected to one terminal of each of the plurality of working coils (for example, WC). For details, this will be described later.
  • a common pattern terminal for example, CPT1 to CPTm of FIG. 10; m is a natural number of 2 or more
  • the indicator substrate 175 may be installed on the indicator substrate support 170.
  • the indicator substrate support 170 may be disposed below the indicator substrate 175 to support the indicator substrate 175.
  • the light guide 210 may be installed on the base plate 145 to be provided around the working coil WC, and display whether the driving coil WC is driven and the output intensity through the light emitting surface 214.
  • each of the light guides 210 may be a base plate.
  • Each of the light guide installation holes 147 formed in the 145 may be installed.
  • the light guide 210 may be disposed above the light emitting device 177 to display light emitted from the light emitting device 177 through the light emitting surface 214.
  • the induction heating apparatus 1 may also have a wireless power transmission function based on the above-described configuration and features.
  • the wireless power transmission technology is classified into electromagnetic induction using coils, resonance using resonance, and radio wave radiation, which converts electrical energy into microwaves.
  • the electromagnetic induction method utilizes electromagnetic induction between a primary coil (for example, working coil (WC)) provided in a device for transmitting wireless power and a secondary coil provided in a device for receiving wireless power. Is a technology to transmit.
  • a primary coil for example, working coil (WC)
  • WC working coil
  • the induction heating method of the induction heating apparatus 1 is substantially the same as the wireless power transmission technique by electromagnetic induction in that the object to be heated is heated by electromagnetic induction.
  • the induction heating mode or the wireless power transfer mode may be controlled by the main controller 310 ′ in FIG. 9, and thus, an induction heating function or a wireless power transfer function may be selectively used as necessary.
  • the induction heating apparatus 1 has the above-described configuration and features.
  • control unit main control unit, inverter control unit, indicator control unit
  • working coil connection structure will be described. It will be described in more detail.
  • FIG. 9 is a block diagram illustrating a control flow of the induction heating apparatus of FIG. 3.
  • 10 is a schematic view for explaining a working coil connection structure of the induction heating apparatus of FIG.
  • the working coil WC, the sensor S, the light emitting element 177, and the inverter unit IV illustrated in FIG. 9 may be configured in plural numbers.
  • an induction heating apparatus 1 may include a main controller 310 ′, an inverter controller 400 ′, and an indicator controller 175 ′.
  • the main controller 310 ′ may receive an input provided by the user from the input interface 300, and may be communicatively connected to the indicator controller 175 ′ and the inverter controller 400 ′.
  • the main controller 310 ′ is connected to the indicator controller 175 ′ through a wire harness, and the main controller 310 ′ receives information about the temperature of the working coil WC detected by the sensor S from the indicator controller 175 ′. Can be provided.
  • the main controller 310 ′ is connected to the inverter controller 400 ′ via a wire harness.
  • the main controller 310 ′ transmits information on the temperature of the working coil WC received from the indicator controller 175 ′ to the inverter controller 400 ′. Can provide.
  • the main controller 310 ′ may transmit an input (ie, a user input) provided from the input interface 300 to at least one of the indicator controller 175 ′ and the inverter controller 400 ′.
  • the main controller 310 ′ may control driving of the input interface 300 (for example, a screen UI displayed on the input interface 300).
  • main controller 310 ′ may be installed in the input interface substrate 310 provided in the case 125 of FIG. 3.
  • the input interface substrate 310 may be implemented, for example, in the form of a PCB (ie, a printed circuit board). Although not shown in the drawing, various components related to driving control of the input interface 300 other than the main controller 310 ′ may be further installed on the input interface substrate 310.
  • the inverter controller 400 ′ may control the driving of the inverter unit IV and may be communicatively connected to the main controller 310 ′.
  • the inverter controller 400 ′ may be connected to the main controller 310 ′ through a wire harness, and thus may receive information about the temperature of the working coil WC from the main controller 310 ′. In addition, the inverter controller 400 ′ may control the driving of the inverter unit IV based on the information about the temperature of the working coil WC provided from the main controller 310 ′.
  • the inverter controller 400 ′ may lower the output of the inverter unit IV.
  • the inverter unit IV may apply a resonance current to only one working coil according to a connection state (one-to-one connection or one-to-many connection) with the working coil WC, or a plurality of working coils. It is also possible to apply a resonant current.
  • the inverter controller 400 ′ may communicate with the main controller 310 ′ in a universal asynchronous receiver / transmitter (UART) manner, but is not limited thereto.
  • UART universal asynchronous receiver / transmitter
  • the inverter controller 400 ′ may receive an input (that is, a user input) from the main controller 310 ′ and control the driving of the inverter unit IV based on the received input.
  • the main controller 310 ′ receives the corresponding input from the input interface 300 and the inverter controller 400. '), And the inverter controller 400' may start the driving coil WC by initiating driving of the inverter unit IV based on an input provided from the main controller 310 '.
  • the inverter controller 400 ′ may be installed on the inverter substrate 400 provided in the case 125 of FIG. 3.
  • the inverter substrate 400 may be implemented, for example, in the form of a PCB (ie, a printed circuit board).
  • various components related to driving control of the inverter unit IV other than the inverter controller 400 ′ may be further installed on the inverter substrate 400.
  • an inverter unit IV may also be installed on the inverter substrate 400.
  • the inverter substrate 400 includes a common pattern terminal (for example, CPT1 of FIG. 10) and a connector (for example, the first connector CN1 of FIG. 10) connected to each other via a wire W.
  • a connector eg, the second connector CN2 of FIG. 10) connected to the other terminal of each of the working coils (eg, WC1 to WCn of FIG. 10) is provided, which will be described later. .
  • the indicator controller 175 ' may be communicatively connected to the sensor S and the main controller 310'.
  • the indicator controller 175 ′ is connected to the sensor S through a wire harness, and thus may receive information about the temperature of the working coil WC from the sensor S.
  • the indicator controller 175 ' is connected to the main controller 310' through a wire harness, and thus, the indicator controller 175 'may transmit information about the temperature of the working coil WC provided from the sensor S to the main controller 310'. have.
  • a plurality of sensors S may be provided (that is, a plurality of sensors may be provided according to the number of working coils), and the indicator controller 175 ′ may be connected to the plurality of sensors through separate wire harnesses.
  • the indicator controller 175 ′ may communicate with the main controller 310 ′ using an inter integrated circuit (I2C) method, but is not limited thereto.
  • I2C inter integrated circuit
  • the indicator controller 175 ′ may be installed on the indicator substrate 175.
  • the indicator substrate 175 may be disposed below the working coil WC (ie, below the base plate 145 of FIG. 3), and the light emitting element 177 (that is, the plurality of light emitting elements) may be an indicator. It may be installed on the substrate 175.
  • the indicator controller 175 ′ may receive an input (ie, a user input) from the main controller 310 ′, and controls the driving of the light emitting device 177 based on the input provided from the main controller 310 ′. can do.
  • the main controller 310 ′ receives the input from the input interface 300 and the indicator controller 175. '), And the indicator controller 175' may start driving the working coil WC by initiating driving of the light emitting device 177 based on an input provided from the main controller 310 '.
  • the inverter controller 400 ′ may transmit information related to driving of the inverter unit IV to the main controller 310 ′, and the main controller 310 ′ is an inverter unit provided from the inverter controller 400 ′. Information related to driving (IV) may be transmitted to the indicator controller 175 '.
  • the indicator controller 175 ′ may control the driving of the light emitting device 177 based on information related to the driving of the inverter unit IV received from the main controller 310 ′.
  • the light emitting element 177 may be driven in accordance with driving of the inverter unit IV (that is, driving of the working coil WC).
  • each control unit (that is, the indicator control unit 175 ', the main control unit 310', and the inverter control unit 400 ') communicate or operate through the above-described method.
  • the indicator control unit 175 ', the main control unit 310', and the inverter control unit 400 ') communicate or operate through the above-described method.
  • FIG. Take a look at the working coil connection structure.
  • the indicator substrate 175 includes a plurality of common pattern terminals CPT1 to CPTm
  • the inverter substrate 400 includes a plurality of common pattern terminals CPT1 to CPTm or a plurality of working coils.
  • WC1 to WCn A plurality of connectors (for example, CN1 to CNp; p is a natural number of two or more) connected to the other terminals may be provided.
  • one terminal of each of the plurality of working coils WC1 to WCn may be connected to each of the common pattern terminals CPT1 to CPTm in a group by a predetermined number, and each of the common pattern terminals CPT1 to CPTm is a wire W1 to Wm. It may be connected to some connectors (eg, CN1, CN3, CNp) provided in the inverter substrate 400 through the (). The other terminals of each of the plurality of working coils WC1 to WCn may be connected to the other connectors (eg, CN2 and CNp-1) provided in the inverter substrate 400 in groups of a predetermined number.
  • one terminal of each of the first to third working coils WC1 to WC3 may be connected to (ie, fastened to) the first common pattern terminal CPT1, and the first common pattern terminal CPT1 may be formed of a first terminal. It may be connected (ie, fastened) with the first connector CN1 through the first wire W1.
  • the other terminal of each of the first to third working coils WC1 to WC3 may be connected (that is, fastened) to the second connector CN2.
  • the terminals (ie, connection terminals) of each of the plurality of working coils WC1 to WCn may be directly or indirectly connected to the plurality of connectors CN1 to CNp provided in the inverter board 400.
  • the plurality of connectors CN1 to CNp may be connected to the inverter units IV1 to IVm in groups of a predetermined number.
  • first and second connectors CN1 and CN2 may be connected to the first inverter unit IV1.
  • the first inverter unit IV1 may perform a switching operation to apply a resonance current to at least one of the first to third working coils WC1 to WC3.
  • three working coils are shown to be controlled by one inverter part in FIG. 10, it is not limited to this. That is, two or four or more working coils may be controlled by one inverter unit.
  • the length of one of the two terminals (that is, the wire length of one connection terminal) of the two terminals provided in each of the working coils WC1 to WCn is equal to the plurality of working coils WC1 to WCn shown in FIG. 2. It may be shorter than the length of the terminal (that is, the wire length of the connection terminal) used for the connection between the connector CN1 to CNn (that is, the connector provided in the inverter board 400).
  • wires W1 to Wm used to connect each common pattern terminal CPT1 to CPTm and some connectors may be single wires.
  • a plurality of working coils having a long length between the plurality of working coils WC1 to WCn and the inverter substrate 400 that is, the connectors provided in the inverter substrate 400.
  • the induction heating apparatus 1 can improve the working coil connection structure, and thus the connection and assembly of the wires for the working coils become easier, and thus, the induction heating apparatus ( 1) It is easy to secure the internal circuit arrangement area.
  • the circuit design difficulty can be lowered by securing a circuit arrangement area, and thus productivity can be improved.
  • the working coil connection structure can be improved to reduce the length of some working coil wires, thereby reducing manufacturing costs.
  • the working coil connection structure can be improved to prevent the wire from being damaged due to wire entanglement.
  • the induction heating apparatus 1 may improve communication efficiency between control units by improving an internal communication method. Furthermore, product reliability can be improved by improving communication efficiency between the controllers.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

La présente invention concerne un dispositif de chauffage par induction ayant une structure de connexion de bobine de travail améliorée. Le dispositif de chauffage par induction selon un mode de réalisation de la présente invention comprend : une plaque de couverture qui est couplée à l'extrémité supérieure d'un boîtier et sur laquelle un objet à chauffer est placé ; une première bobine de travail et une seconde bobine de travail disposées à l'intérieur du boîtier, pour chauffer l'objet à chauffer; un substrat indicateur qui est disposé au-dessous de la première bobine de travail et de la seconde bobine de travail, qui comprend une pluralité de dispositifs électroluminescents disposés sur celui-ci, et qui possède une borne de motif commun connectée à des bornes sur un côté de la première bobine de travail et de la seconde bobine de travail ; et un substrat d'onduleur pourvu d'une unité d'onduleur pour appliquer un courant résonant à la première bobine de travail et/ou la seconde bobine de travail en effectuant une opération de commutation, le substrat d'onduleur ayant un premier connecteur connecté à la borne de motif commun, et un second connecteur connecté à des bornes sur les autres côtés de la première bobine de travail et de la seconde bobine de travail.
PCT/KR2019/006040 2018-05-23 2019-05-21 Dispositif de chauffage par induction à structure de connexion de bobine de travail améliorée WO2019225935A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0058072 2018-05-23
KR1020180058072A KR102107618B1 (ko) 2018-05-23 2018-05-23 워킹 코일 연결 구조가 개선된 유도 가열 장치

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WO2019225935A1 true WO2019225935A1 (fr) 2019-11-28

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Publication number Priority date Publication date Assignee Title
JP2023023341A (ja) * 2021-08-05 2023-02-16 三星電子株式会社 エネルギー供給装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007033101A (ja) * 2005-07-25 2007-02-08 Ricoh Co Ltd Ｉｃ試験装置
JP2011233304A (ja) * 2010-04-26 2011-11-17 Mitsubishi Electric Corp 誘導加熱調理器
JP2014035933A (ja) * 2012-08-09 2014-02-24 Panasonic Corp 誘導加熱装置
JP2014044809A (ja) * 2012-08-24 2014-03-13 Panasonic Corp 誘導加熱装置
JP2014116088A (ja) * 2012-12-06 2014-06-26 Panasonic Corp 誘導加熱調理器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007033101A (ja) * 2005-07-25 2007-02-08 Ricoh Co Ltd Ｉｃ試験装置
JP2011233304A (ja) * 2010-04-26 2011-11-17 Mitsubishi Electric Corp 誘導加熱調理器
JP2014035933A (ja) * 2012-08-09 2014-02-24 Panasonic Corp 誘導加熱装置
JP2014044809A (ja) * 2012-08-24 2014-03-13 Panasonic Corp 誘導加熱装置
JP2014116088A (ja) * 2012-12-06 2014-06-26 Panasonic Corp 誘導加熱調理器

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KR102107618B1 (ko) 2020-05-07

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