KR102011378B1 - Converter for vehicle with wireless charging - Google Patents

Converter for vehicle with wireless charging Download PDF

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Publication number
KR102011378B1
KR102011378B1 KR1020170142322A KR20170142322A KR102011378B1 KR 102011378 B1 KR102011378 B1 KR 102011378B1 KR 1020170142322 A KR1020170142322 A KR 1020170142322A KR 20170142322 A KR20170142322 A KR 20170142322A KR 102011378 B1 KR102011378 B1 KR 102011378B1
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South Korea
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wireless charging
converter
inductor
vehicle
voltage battery
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KR1020170142322A
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Korean (ko)
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KR20190047929A (en
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박윤욱
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주식회사 만도
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R7/00—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps
    • B60R7/04—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y02T10/7216—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

무선충전 기능을 갖는 차량용 컨버터가 제공된다. 본 발명의 실시예에 따른 무선충전 기능을 갖는 차량용 컨버터는 인버터 또는 고전압 배터리로부터 출력된 전압을 저전압 배터리를 충전하거나 전장부하로 제공하기 위한 전압으로 변환하며, 부스트 기능용 인덕터가 구비된 컨버터부; 및 컨버터부의 인덕터와 병렬 연결되어 자기유도하는 무선충전용 인덕터;를 포함한다. A vehicle converter with a wireless charging function is provided. According to an embodiment of the present invention, a vehicle converter having a wireless charging function may include: a converter unit converting a voltage output from an inverter or a high voltage battery into a voltage for charging a low voltage battery or providing an electric load, and having a boost function inductor; And a wireless charging inductor connected in parallel with the inductor of the converter and inducing magnetic charge.

Description

무선충전 기능을 갖는 차량용 컨버터{Converter for vehicle with wireless charging} Converter for vehicle with wireless charging

본 발명은 무선충전 기능을 갖는 차량용 컨버터에 관한 것이다. The present invention relates to a vehicle converter having a wireless charging function.

최근 연비 및 배기가스 규제에 대안으로 하이브리드 및 전기차 관련기술이 개발되고 상품화된 차량들이 출시되고 있다. 여기서, 현재의 하이브리드 차량 및 전기 차량은 필연적으로 12V 배터리(저전압 배터리)를 충전해 줄 수 있는 컨버터가 필요하다. Recently, hybrid and electric vehicle related technologies have been developed and commercialized as alternatives to fuel consumption and exhaust gas regulations. Here, current hybrid vehicles and electric vehicles inevitably need a converter capable of charging a 12V battery (low voltage battery).

또한, 현재의 차량 기술의 발전은 소비자들이 좀 더 편리하게 차량을 사용할 수 있는 방향으로 기술들이 개발되고 있다. 그 중 하나는 무선충전기술이다. 이 기술을 사용하여 차량에서도 모바일 기기를 충전할 수 있는 무선충전 장치들이 개발되고 있다. In addition, the development of the current vehicle technology has been developed in the direction that consumers can use the vehicle more conveniently. One of them is wireless charging technology. Wireless charging devices are being developed to use this technology to charge mobile devices in vehicles.

그러나, 차량에서의 무선충전은 별도로 무선충전기를 설치해야지만 그 기능을 사용할 수 있다. However, wireless charging in a vehicle requires a separate wireless charger to use its function.

KRKR 2017-00530252017-0053025 AA

상기와 같은 종래 기술의 문제점을 해결하기 위해, 본 발명의 일 실시예는 무선충전 장치를 별도로 설치하지 않고 하이브리드 차량 및 전기 차량에 필수적으로 구비되는 컨버터에 무선충전 기능을 부가하여 12V 배터리를 충전함과 동시에 모바일 기기의 무선충전 기능도 수행할 수 있는 무선충전 기능을 갖는 차량용 컨버터를 제공하고자 한다.In order to solve the problems of the prior art as described above, an embodiment of the present invention charges a 12V battery by adding a wireless charging function to a converter that is essentially provided in a hybrid vehicle and an electric vehicle without separately installing a wireless charging device. At the same time, to provide a vehicle converter having a wireless charging function that can perform a wireless charging function of the mobile device.

위와 같은 과제를 해결하기 위한 본 발명의 일 측면에 따르면, 인버터 또는 고전압 배터리로부터 출력된 전압을 저전압 배터리를 충전하거나 전장부하로 제공하기 위한 전압으로 변환하며, 에너지 저장용 인덕터가 구비된 컨버터부; 및 상기 컨버터부의 인덕터와 병렬 연결되어 자기유도하는 무선충전용 인덕터;를 포함하는 무선충전 기능을 갖는 차량용 컨버터가 제공된다. According to an aspect of the present invention for solving the above problems, a converter unit for converting the voltage output from the inverter or high voltage battery to a voltage for charging the low voltage battery or to provide an electric load, the converter unit having an energy inductor; And a wireless charging inductor connected in parallel with the inductor of the converter unit and inductively conducting a wireless charging.

일 실시예에서, 상기 무선충전용 인덕터는 공심인덕터일 수 있다. In one embodiment, the wireless charging inductor may be a concentric inductor.

일 실시예에서, 상기 인덕터는 페라이트 코어를 포함할 수 있다.In one embodiment, the inductor may comprise a ferrite core.

일 실시예에서, 상기 컨버터부는 양방향 벅-부스트 컨버터일 수 있다. In one embodiment, the converter unit may be a bidirectional buck-boost converter.

일 실시예에서, 상기 무선충전용 인덕터는 차량의 콘솔박스 위치에 배치될 수 있다.In one embodiment, the wireless charging inductor may be disposed in the console box location of the vehicle.

본 발명의 일 실시예에 따른 무선충전 기능을 갖는 차량용 컨버터는 하이브리드 차량 및 전기 차량에 구비되는 컨버터와 무선충전 기능을 통합함으로써, 모바일 기기를 편리하게 충전할 수 있는 위치에 선택적으로 장착할 수 있으므로 별도로 무선충전 장치를 장착할 위치를 고려할 필요 없어 공간활용도를 극대화활 수 있다. Vehicle converter having a wireless charging function according to an embodiment of the present invention by integrating the wireless charging function and the converter provided in the hybrid vehicle and the electric vehicle, it can be selectively mounted in a position to conveniently charge the mobile device There is no need to consider the location to install the wireless charging device separately can maximize the space utilization.

또한, 본 발명은 무선충전 장치를 별도로 설치하지 않고 컨버터에 무선충전 기능을 통합함으로써, 무선충전을 위한 구성요소와 컨버터의 구성요소를 공통으로 사용할 수 있으므로 무선충전기를 별도로 설치하는 경우에 비하여 전장부하의 전기적 부하를 줄일 수 있다. In addition, the present invention integrates the wireless charging function in the converter without separately installing the wireless charging device, so that the components for the wireless charging and the components of the converter can be used in common, compared to the case of installing the wireless charger separately, the electric load Can reduce the electrical load.

또한, 본 발명은 무선충전용 컨버터를 콘솔박스 위치에 설치함으로써, 12V 배터리를 충전함과 동시에 모바일 기기의 무선충전을 수행할 수 있다. In addition, the present invention by installing a wireless charging converter in the console box position, it is possible to perform the wireless charging of the mobile device at the same time to charge the 12V battery.

도 1은 본 발명의 실시예에 따른 차량의 개략적 구성도, 및
도 2는 본 발명의 실시예에 따른 무선충전 기능을 갖는 차량용 컨버터의 회로도이다. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention, and
2 is a circuit diagram of a vehicle converter having a wireless charging function according to an embodiment of the present invention.

이하, 첨부한 도면을 참고로 하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 참조부호를 붙였다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

이하에서는 도면을 참조하여 본 발명의 실시예에 따른 무선충전겸용 컨버터를 보다 상세히 설명하도록 한다. 도 1은 본 발명의 실시예에 따른 차량의 개략적 구성도이다. Hereinafter, a wireless charging and converting converter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 일 실시예에 다른 차량(1)은 엔진(10), 모터발전기(20), 전자제어유닛(30), 인버터(40), 무선충전겸용 컨버터(100), 고전압 배터리(60), 저전압 배터리(70), 및 전장부하(80)를 포함할 수 있다. Referring to FIG. 1, another vehicle 1 according to an embodiment of the present invention includes an engine 10, a motor generator 20, an electronic control unit 30, an inverter 40, a wireless charging and converting converter 100, The high voltage battery 60, the low voltage battery 70, and the electric load 80 may be included.

이러한 차량(1)은 전장부하에 전력을 제공하기 위한 저전압 배터리(70)와 함께 모터발전기(20)를 구동하기 위한 고전압 배터리(60)를 함께 구비할 수 있다. 여기서, 차량(1)은 하이브리드 차량 또는 전기 차량일 수 있다. The vehicle 1 may be provided with a high voltage battery 60 for driving the motor generator 20 together with a low voltage battery 70 for providing electric power to the electric load. Here, the vehicle 1 may be a hybrid vehicle or an electric vehicle.

엔진(10)은 벨트(14)를 통하여 모터발전기(20)와 연동되며, 모터발전기(20)는 스타트 모터와 교류 전압을 발전할 수 있는 발전기로서 기능할 수 있다. The engine 10 is interlocked with the motor generator 20 through the belt 14, and the motor generator 20 may function as a generator capable of generating an AC voltage with the start motor.

구체적으로 모터발전기(20)는 스타트 모터로 기능할 경우, 인버터(40)를 통해 구동 전압을 공급 받아 엔진 동력의 보조 역할을 하고, 발전기로서 기능할 경우, 차량 제동시 발생되는 전기 에너지를 고전압 배터리(60)에 공급하여 충전할 수 있다. In detail, when the motor generator 20 functions as a start motor, the motor generator 20 receives a driving voltage through the inverter 40 to serve as an auxiliary power for engine power, and when the motor generator 20 functions as a generator, the electric generator 20 generates electric energy generated when the vehicle is braked. It can supply to 60 and can charge.

전자제어유닛(ECU; Electronic Control Unit)(30)은 모터발전기(20), 인버터(40) 및 무선충전겸용 컨버터(100) 등의 각 구성들을 제어할 수 있다.The electronic control unit (ECU) 30 may control each component of the motor generator 20, the inverter 40, and the wireless charging and converting converter 100.

인버터(40)는 교류를 직류로 변환하거나 직류를 교류로 변환하는 양방향 변환기로서, 고전압 배터리(60)로부터 공급되는 전기에너지를 변환하여 모터발전기(20)에 공급하거나, 모터발전기(20)에서 발전된 전기에너지를 변환하여 고전압 배터리(60)를 충전할 수 있다. Inverter 40 is a bidirectional converter that converts alternating current into direct current or direct current into alternating current, converts electrical energy supplied from high voltage battery 60 to supply to motor generator 20, or generates power from motor generator 20. The high voltage battery 60 may be charged by converting electrical energy.

고전압 배터리(60)는 복수의 슈퍼커패시터로 구성되며, 차량 감속시 모터발전기(20)로부터 회생된 전기에너지가 공급되어 충전되고, 차량 가속시 엔진 토크를 보조하도록 모터발전기(20)로 충전된 전기 에너지를 공급할 수 있다. 일례로, 이러한 고전압 배터리(60)는 48V 배터리일 수 있다. The high voltage battery 60 is composed of a plurality of supercapacitors, and the electric energy regenerated from the motor generator 20 is charged and charged when the vehicle is decelerated, and the electric charge is charged to the motor generator 20 to assist the engine torque when the vehicle is accelerated. Can supply energy. In one example, the high voltage battery 60 may be a 48V battery.

무선충전겸용 컨버터(100)는 직류의 레벨을 변환하는 DC-DC 컨버터로서, 발전이 수행되는 경우 인버터(40)의 출력을 변화하거나 발전이 수행되지 않는 경우 고전압 배터리(60)의 전압을 변환하여 저전압 배터리(70)로 공급하여 충전하거나, 전장부하(80)로 공급할 수 있다. Wireless charging converter 100 is a DC-DC converter that converts the level of the direct current, when power generation is performed by changing the output of the inverter 40 or when the power generation is not performed by converting the voltage of the high voltage battery 60 The low voltage battery 70 may be supplied and charged, or may be supplied to the electric load 80.

또한, 무선충전겸용 컨버터(100)는 후술하는 바와 같이, 에너지 저장용 인덕터와 무선충전을 위한 인덕터를 병렬로 구비함으로써, 모바일 기기의 무선충전을 수행할 수 있다.In addition, the dual-purpose wireless charging converter 100 may perform wireless charging of a mobile device by providing an inductor for energy storage and an inductor for wireless charging in parallel, as described below.

저전압 배터리(70)는 무선충전겸용 컨버터(100)에 의해 변환된 전기에너지가 공급되어 충전되고, 하이브리드 차량(1)의 전장부하로 충전된 전력을 공급할 수 있다. 일례로, 이러한 저전압 배터리(70)는 12V 배터리일 수 있다. The low voltage battery 70 may be charged by being supplied with electrical energy converted by the converter for wireless charging and charging 100, and supply electric power charged by the electric load of the hybrid vehicle 1. In one example, the low voltage battery 70 may be a 12V battery.

전장부하(80)는 차량(10)의 운전중에 사용되는 각종 부하로서, 램프 등과 같은 전력을 소비하는 부품, 또는 전자제어 기능 및 그에 의한 구동 수단을 포함할 수 있다. 이러한 전장부하(80)는 저전압 배터리(70) 또는 고전압 배터리(60)로부터 무선충전겸용 컨버터(100)를 통하여 전력이 공급될 수 있다.The electric load 80 is a variety of loads used during the operation of the vehicle 10 and may include components that consume electric power such as a lamp or the like, or an electronic control function and driving means thereof. The electric load 80 may be supplied from the low voltage battery 70 or the high voltage battery 60 through the wireless charging converter 100.

도 2는 본 발명의 실시예에 따른 무선충전 기능을 갖는 차량용 컨버터의 회로도이다. 2 is a circuit diagram of a vehicle converter having a wireless charging function according to an embodiment of the present invention.

이러한 무선충전겸용 컨버터(100)는 컨버터부(110)의 일부 구성요소를 무선충전을 위한 구성요소를 공통으로 사용함으로써, 최소한의 구성요소를 부가하는 것만으로 배터리의 충전 및 무선충전 기능을 모두 구현할 수 있다.The combined wireless charging converter 100 may implement both the charging and wireless charging functions of the battery by simply adding a minimum of components by using some components of the converter unit 110 for wireless charging in common. Can be.

즉, 무선충전겸용 컨버터(100)는 종래의 하이브리드 차량 및 전기 차량에 필수적으로 구비되는 LDC(Low voltage DC/DC Converter)에 무선충전 기능을 부가함으로써, 별도의 무선충전 장치가 설치될 필요 없이 모바일 기기를 충전할 수 있고, 더욱이, 별도의 무선충전기를 구비하는 경우에 비하여 전장부하(80)의 전기적 부하를 경감시킬 수 있다. That is, the wireless charging converter 100 adds a wireless charging function to a low voltage DC / DC converter (LDC), which is essentially provided in a conventional hybrid vehicle and an electric vehicle, thereby eliminating the need for a separate wireless charging device to be installed. The device can be charged, and in addition, the electrical load of the electric load 80 can be reduced compared to the case of providing a separate wireless charger.

무선충전겸용 컨버터(100)는 도 2에 도시된 바와 같이, 컨버터부(110) 및 무선충전 송신부(L2)를 포함할 수 있다.As shown in FIG. 2, the wireless charging converter 100 may include a converter unit 110 and a wireless charging transmitter L2.

컨버터부(110)는 인버터(40) 또는 고전압 배터리(60)로부터 출력된 전압에 의해 저전압 배터리(70)를 충전하거나 전장부하(80)로 제공하기 위한 전압으로 변환할 수 있다.The converter unit 110 may convert the low voltage battery 70 into a voltage for charging or providing the low voltage battery 70 to the electric load 80 by the voltage output from the inverter 40 or the high voltage battery 60.

이러한 컨버터부(110)는 양방향 벅-부스트 컨버터일 수 있다. 여기서, 컨버터부(110)는 인덕터(L1) 및 전력용 반도체 스위치(S1,S2)를 포함할 수 있다. 도 2에서, 다른 구성요소들(C1,C2,C2, R1,R2,R3)은 컨버터의 회로설계에 따라 부가적인 사항들로 이해될 수 있다. The converter unit 110 may be a bidirectional buck-boost converter. The converter unit 110 may include an inductor L1 and power semiconductor switches S1 and S2. In Figure 2, the other components (C1, C2, C2, R1, R2, R3) can be understood as additional matters depending on the circuit design of the converter.

인덕터(L1)는 전력용 반도체 스위치(S1,S2)의 스위칭 제어에 따라 고전압 배터리(60) 또는 인버터(40)로부터 인가되는 전원(V)의 에너지를 저장할 수 있다. 이러한 인덕터(L1)는 페라이트 코어를 포함할 수 있다.The inductor L1 may store energy of the power V applied from the high voltage battery 60 or the inverter 40 according to the switching control of the power semiconductor switches S1 and S2. The inductor L1 may include a ferrite core.

전력용 반도체 스위치(S1,S2)는 인버터(40) 또는 고전압 배터리(60)의 출력 전원을 인덕터(L1)에 저장하도록 전자제어유닛(30)에 의해 스위칭제어될 수 있다. The power semiconductor switches S1 and S2 may be controlled by the electronic control unit 30 to store the output power of the inverter 40 or the high voltage battery 60 in the inductor L1.

무선충전 송신부(L2)는 무선충전용 인덕터로서 공심인덕터일 수 있다. 이러한 무선충전 송신부(L2)는 인덕터(L1)와 병렬 연결되어 자기장 변화에 의해 자기유도를 발생시킬 수 있다. The wireless charging transmitter L2 may be an air inductor as an inductor for wireless charging. The wireless charging transmitter L2 may be connected in parallel with the inductor L1 to generate magnetic induction by a magnetic field change.

여기서, 컨버터부(110)에 구비된 인덕터(L1)만을 이용하여 컨버터 출력과 무선충전 기능을 달성하는 것은 기술적 제약이 있다. Here, there are technical limitations in achieving the converter output and the wireless charging function using only the inductor L1 provided in the converter 110.

구체적으로, 저전압 배터리(70)의 충전 또는 전장부하(80)용 12V 전원을 출력하기 위해 사용되는 인덕터는 대부분 페라이트 코어를 포함하는 인덕터를 사용하기 때문에 누설자속이 거의 발생하지 않으므로 무선충전 기능을 수행할 수 없다. Specifically, since the inductor used for charging the low voltage battery 70 or outputting the 12V power supply for the electric field load 80 mostly uses an inductor including a ferrite core, since the leakage flux rarely occurs, the wireless charging function is performed. Can not.

반대로, 무선충전 기능을 제공하기 위해 누설자속이 큰 공심인덕터를 사용하면 무선충전 기능은 제공할 수 있지만, 전력변환되어 저전압 배터리(70) 또는 전장부하(80)로 제공되는 에너지가 작아지므로 저전압 배터리(70)의 충전 및 전장부하(80)에 적합한 전원을 제공하지 못한다. On the contrary, if the air-conductor having a large leakage flux is used to provide the wireless charging function, the wireless charging function can be provided, but the energy supplied to the low voltage battery 70 or the electric load 80 is reduced so that the low voltage battery Failure to provide power for the charging and electrical loads 80 of 70.

결과적으로, 하나의 인버터 또는 한 종류의 인덕터만으로는 배터리 충전 및 무선충전 기능 모두를 만족스럽게 구현할 수 없다. As a result, only one inverter or one type of inductor cannot satisfactorily implement both battery charging and wireless charging functions.

따라서, 본 발명의 실시예에 따른 무선충전겸용 컨버터(100)는 배터리 충전 및 무선충전 기능을 모두 수행하기 위해 컨버터의 기능구현에 적합한 인덕터와 무선충전에 적합한 인덕터를 병렬 연결함으로써, 12V 전원 출력과 무선충전 기능을 모두 수행할 수 있다. Accordingly, the wireless charging and converting converter 100 according to the embodiment of the present invention connects an inductor suitable for implementing a function of the converter and an inductor suitable for wireless charging in parallel to perform both a battery charging and a wireless charging function. Can perform all wireless charging functions.

이를 위해, 배터리 충전을 위한 인덕터(L1)는 페라이트 코어를 포함할 수 있고, 무선충전을 위한 인덕터(L2)는 공심인덕터일 수 있다. To this end, the inductor L1 for charging the battery may include a ferrite core, and the inductor L2 for wireless charging may be a concentric inductor.

이러한 무선충전겸용 컨버터(100)는 무선충전 방식으로서 전자기유도 방식을 이용할 수 있다. 즉, 무선충전겸용 컨버터(100)는 공심코일(L2)에 의해 자기장의 변화를 유도하고, 모바일 기기가 유도된 자기장의 변화에 따라 코일(L)에 전류가 유도되는 방식으로 무선충전이 이루어질 수 있다. The combined wireless charging converter 100 may use an electromagnetic induction method as a wireless charging method. That is, the wireless charging converter 100 may induce a change in the magnetic field by the air core coil (L2), and wireless charging may be performed in a manner in which a current is induced in the coil (L) according to the change in the magnetic field induced by the mobile device. have.

여기서, 인덕터(L1)는 무선충전겸용 컨버터(100)의 출력단, 즉, 저전압 배터리(70) 또는 전장부하(80) 측으로 에너지를 공급하고, 인덕터(L1)에 병렬 연결된 인덕터(L2)는 누설자속 성분에 의하여 자기장을 유도하여 무선충전 송신부로서 기능할 수 있다.Here, the inductor L1 supplies energy to the output terminal of the dual-purpose converter 100, that is, the low voltage battery 70 or the electric load 80, and the inductor L2 connected in parallel with the inductor L1 leaks the magnetic flux. By inducing a magnetic field by the component, it can function as a wireless charging transmitter.

한편, 무선충전겸용 컨버터(100)는 운전자나 탑승자가 용이하게 접근할 수 있는 위치에 유동적으로 장착될 수 있다. 일례로, 무선충전겸용 컨버터(100)는 중앙 콘솔박스 아래 또는 중앙 콘솔 암레스트 아래에 장착될 수 있다. On the other hand, the dual-purpose wireless charging converter 100 may be mounted in a flexible position that can be easily accessed by the driver or the passenger. For example, the wireless charging converter 100 may be mounted below the center console box or below the center console armrest.

이와 같은 무선충전겸용 컨버터(100)는 콘솔박스 위치에 설치될 수 있다. 즉, 무선충전겸용 컨버터(100)는 운전자나 탑승자의 접근이 용이하도록 운전석 부근에 배치됨으로써, 저전압 배터리(70)의 충전과 함께 모바일 기기의 무선충전을 수행할 수 있다.Such a wireless charging converter 100 may be installed in the console box location. That is, the combined wireless charging converter 100 may be disposed near the driver's seat for easy access by a driver or a passenger, thereby performing wireless charging of the mobile device together with charging of the low voltage battery 70.

여기서, 상기 위치에 무선충전겸용 컨버터(100) 전체를 반드시 구비할 필요는 없고 선택적으로 무선충전을 위한 인덕터(L2)만을 구비할 수도 있다. Here, it is not necessary to necessarily include the entire wireless charging converter 100 at the position, and may optionally include only the inductor L2 for wireless charging.

이에 의해 별도로 무선충전겸용 컨버터(100)를 장착할 위치를 고려하지 않아도 되므로 공간활용도를 극대화할 수 있다.Thereby, it is not necessary to consider the position to install the separate wireless charging converter 100 can be maximized space utilization.

이와 같은 구성에 의해 본 발명의 실시예에 다른 무선충전겸용 컨버터(100)는 모바일 기기를 편리하게 충전할 수 있는 위치에 선택적으로 장착할 수 있으므로 별도로 무선충전 장치를 장착할 위치를 고려할 필요 없이 공간활용도를 극대화활 수 있다. With this configuration, the wireless charging and converting converter 100 according to the embodiment of the present invention can be selectively mounted at a position where the mobile device can be conveniently charged. Therefore, the space for the wireless charging device is not required to be installed separately. Maximize utilization.

또한, 본 발명의 실시예에 따른 무선충전겸용 컨버터(100)는 무선충전을 위한 구성요소와 컨버터의 구성요소를 공통으로 사용할 수 있으므로 무선충전기를 별도로 설치하는 경우에 비하여 전장부하의 부하를 줄일 수 있다. In addition, the wireless charging and converting converter 100 according to the embodiment of the present invention can use the components for the wireless charging and the components of the converter in common can reduce the load of the electric load compared to the case of installing a separate wireless charger. have.

또한, 본 발명의 실시예에 따른 무선충전겸용 컨버터(100)는 12V 배터리를 충전함과 동시에 모바일 기기의 무선충전을 수행할 수 있다. In addition, the wireless charging and converting converter 100 according to the embodiment of the present invention may charge a 12V battery and perform wireless charging of a mobile device.

이상에서 본 발명의 일 실시예에 대하여 설명하였으나, 본 발명의 사상은 본 명세서에 제시되는 실시 예에 제한되지 아니하며, 본 발명의 사상을 이해하는 당업자는 동일한 사상의 범위 내에서, 구성요소의 부가, 변경, 삭제, 추가 등에 의해서 다른 실시 예를 용이하게 제안할 수 있을 것이나, 이 또한 본 발명의 사상범위 내에 든다고 할 것이다.Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention, within the scope of the same idea, the addition of components Other embodiments may be easily proposed by changing, deleting, adding, and the like, but this will also fall within the spirit of the present invention.

1 : 차량 10 : 엔진
14 : 벨트 20 : 모터발전기
30 : 전자제어유닛 40 : 인버터
60 : 고전압 배터리 70 : 저전압 배터리
80 : 전장부하 100 : 무선충전겸용 컨버터1: vehicle 10: engine
14 belt 20 motor generator
30: electronic control unit 40: inverter
60: high voltage battery 70: low voltage battery
80: electric load 100: wireless charging converter

Claims (5)

인버터 또는 고전압 배터리로부터 출력된 전압을 저전압 배터리를 충전하거나 전장부하로 제공하기 위한 전압으로 변환하며, 에너지 저장용 인덕터가 구비된 컨버터부; 및
상기 에너지 저장용 인덕터의 양단에 병렬 연결되어 자기유도를 발생시키는 무선충전용 인덕터;
를 포함하는 무선충전 기능을 갖는 차량용 컨버터.A converter unit for converting a voltage output from an inverter or a high voltage battery into a voltage for charging or providing a low voltage battery with an electric load, and having an energy storage inductor; And
A wireless charging inductor connected in parallel to both ends of the energy storage inductor to generate magnetic induction;
Vehicle converter having a wireless charging function comprising a. 제1항에 있어서,
상기 무선충전용 인덕터는 공심인덕터인 무선충전 기능을 갖는 차량용 컨버터.The method of claim 1,
The wireless charging inductor is a vehicle converter having a wireless charging function that is a concentric inductor. 제1항에 있어서,
상기 에너지 저장용 인덕터는 페라이트 코어를 포함하는 무선충전 기능을 갖는 차량용 컨버터.The method of claim 1,
The energy storage inductor is a vehicle converter having a wireless charging function including a ferrite core. 제1항에 있어서,
상기 컨버터부는 양방향 벅-부스트 컨버터인 무선충전 기능을 갖는 차량용 컨버터.The method of claim 1,
The converter unit has a wireless charging function of a two-way buck-boost converter. 제1항에 있어서,
상기 무선충전용 인덕터는 차량의 콘솔박스 위치에 배치되는 무선충전 기능을 갖는 차량용 컨버터.The method of claim 1,
The wireless charging inductor is a vehicle converter having a wireless charging function disposed in the console box position of the vehicle.
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WO2009081126A1 (en) 2007-12-21 2009-07-02 Amway (Europe) Limited Circuitry for inductive power transfer
KR101830402B1 (en) * 2016-10-19 2018-03-30 주식회사 경신 Electric power l1ntrol apparatus for vehicle

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