KR20210081777A - Wireless charging system for electric vehicles - Google Patents

Wireless charging system for electric vehicles Download PDF

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Publication number
KR20210081777A
KR20210081777A KR1020190174054A KR20190174054A KR20210081777A KR 20210081777 A KR20210081777 A KR 20210081777A KR 1020190174054 A KR1020190174054 A KR 1020190174054A KR 20190174054 A KR20190174054 A KR 20190174054A KR 20210081777 A KR20210081777 A KR 20210081777A
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South Korea
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charging
electric vehicle
panel
power transmission
current
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KR1020190174054A
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Korean (ko)
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정 호 조
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정 호 조
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    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • 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
    • B60L53/10—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 the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • 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
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • 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
    • 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
    • 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
    • Y02T90/12—Electric charging stations
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

According to the present invention, provided is a wireless charger for an electric vehicle, capable of increasing the supply rate of electric vehicles by enabling an electric vehicle to be wirelessly charged during driving or when parked through a charge transfer between a power transmission panel installed on a road and an electrification panel installed in the electric vehicle; solving concerns about environmental pollution by enabling the driving of an electric vehicle without using fossil energy (gasoline or diesel oil); and embodying the construction of a charging infrastructure which does not cause a waste of time consumed for charging. According to the present invention, the wireless charger includes: a power transmission panel buried under the surface of a road while kept electrically connected with a high-frequency oscillator; an electrification panel installed in the bottom of an electric vehicle to be opposed to the power transmission panel such that charges can be transferred; a rectification means rectifying the charges transferred to the electrification panel to provide an AC current as a DC current; and a charging means charging the DC current rectified by the rectification means into a battery.

Description

전기자동차용 무선충전장치{Wireless charging system for electric vehicles}Wireless charging system for electric vehicles

본 발명은 전기자동차용 무선충전장치에 관한 것으로서, 보다 구체적으로는 도로에 설치된 송전패널과, 전기자동차에 설치된 대전패널 사이의 전하 이동을 통해서 전기자동차에 무선으로 충전이 이루어져 주행 중이나 주차 중에 무선충전이 제공될 수 있도록 함으로 해서 전기자동차 보급률을 높이고 화석에너지(휘발유 또는 경유) 사용 없이 전기자동차의 운행이 이루어질 수 있어 환경오염 염려도 일소할 수 있으며, 충전에 따른 시간 낭비 없는 충전 인프라 구축을 실현할 수 있도록 한 전기자동차용 무선충전장치를 제공코자 하는 것이다.The present invention relates to a wireless charging device for an electric vehicle, and more particularly, wirelessly charging an electric vehicle through charge transfer between a power transmission panel installed on a road and a charging panel installed on the electric vehicle, and thus wireless charging while driving or parking. By providing this system, it is possible to increase the penetration rate of electric vehicles, to operate electric vehicles without the use of fossil energy (gasoline or diesel), thereby eliminating concerns about environmental pollution, and realizing the establishment of a charging infrastructure without wasting time due to charging. It is intended to provide a wireless charging device for electric vehicles.

최근 지구 온난화 등의 환경문제로 CO₂배출량 규제 강화, 화석연료 고갈 및 고유가 문제 등에 대처하기 위해 친환경 자동차의 개발 및 그린카 보급을 늘리려 하고 있다.Recently, environmental problems such as global warming are trying to increase the development of eco-friendly cars and the spread of green cars in order to cope with the strengthening of CO₂ emission regulations, the depletion of fossil fuels, and the problems of high oil prices.

CO₂배출량 규제 등의 환경변화는 새로운 시장의 창출은 물론 우리 실생활에서 지금까지와는 전혀 다른 차원으로의 변화를 요구하고 있는데 이를 위해 각국은 많은 자본과 기술을 투자해 시장을 선점하기 위해 치열한 경쟁을 하고 있고 CO₂배출의 많은 부분을 차지하고 있는 수송부문은 기존의 내연기관 자동차로부터 친환경자동차라는 무ㅇ저공해 자동차로의 변화를 요구하고 있다.Environmental changes such as CO2 emission regulations require not only the creation of new markets but also changes in our real life to a completely different level than before. To this end, countries are investing a lot of capital and technology to preoccupy the market. The transportation sector, which accounts for a large portion of CO2 emissions, is demanding a change from conventional internal combustion engine vehicles to eco-friendly, low-pollution vehicles.

자동차 회사들은 무/저공해 자동차의 개발이 회사의 생존문제와 직결되기 때문에 이의 강력한 대안으로 떠오른 전기자동차의 개발하고 있는 상태이다.Automobile companies are developing electric vehicles that have emerged as a powerful alternative because the development of zero/low-emission vehicles is directly related to the company's survival problem.

전기자동차의 개발과 함께 상용화 및 보급을 위해서는 충전인프라의 구축이 선행돼야 하며 충전인프라의 구축 여부가 전기자동차의 보급 및 활성화에 필수적인 요소로 부각되고 있고 결과적으로 충전인프라를 먼저, 구축하는 국가가 경제적인 이득은 물론 시장 지배력을 확보할 것으로 예상된다.In order to commercialize and disseminate electric vehicles along with the development of electric vehicles, the construction of charging infrastructure must be preceded, and whether or not charging infrastructure is established is emerging as an essential factor for the distribution and activation of electric vehicles. It is expected to secure market dominance as well as gain in phosphorus.

선행기술로는 대한민국 공개특허공보(A)10-2011-0065584호(2011.06.16.)의 주행하면서 충전하는 전기자동차 운행시스템, 대한민국 등록특허공보(B1)10-1231896호(2013.02.22.)의 전기자동차용 충전장치 등이 제안되고 있으며, 이들의 경우 가선 접촉식 등의 구성으로 이루어진 것으로, 지상에 충전을 위한 설비를 구축해야 하는 어려움과 함께 경제적인 부담이 상당하였다.As a prior art, the electric vehicle operation system for charging while driving in Republic of Korea Patent Publication (A) 10-2011-0065584 (June 16, 2011), Republic of Korea Patent Publication No. (B1) 10-1231896 (February 22, 2013) of electric vehicle charging devices have been proposed, and in these cases, they consist of a wire contact type, and the economic burden is considerable along with the difficulty of constructing a charging facility on the ground.

한편, 비접촉 방식의 무선충전장치들도 다양하게 제공되고 있으며, 대표적인 예로는 대한민국 등록특허공보(B1)10-1560964호(2015.10.15.)의 비접촉 급전장치, 대한민국 등록특허공보(B1)10-1935570호(2019.01.07.)의 전기차용 비접촉 급전장치등이 제안되고 있다. On the other hand, a variety of non-contact wireless charging devices are also provided, representative examples of which are the non-contact power feeding device of the Republic of Korea Patent Publication No. (B1)10-1560964 (2015.10.15.), the Republic of Korea Patent Publication (B1)10- 1935570 (2019.01.07.), a non-contact power supply device for electric vehicles, etc. has been proposed.

상기한 종래 선행기술들은 코일에 고주파를 형성하여 양측 코일 사이가 공진되었을 때 전류가 흐르도록 하는 구성을 채택하고 있는 것으로 구성이 복잡하고, 또한 적력소비도 증가하는 등의 문제점이 있다.The prior art described above has a problem in that a high frequency is formed in the coil to allow a current to flow when both coils are resonated, and the configuration is complicated, and the power consumption is also increased.

KR 1020110065584 A 2011.06.16.KR 1020110065584 A 2011.06.16. KR 101231896 B1 2013.02.22.KR 101231896 B1 2013.02.22. KR 101560964 B1 2015.10.15.KR 101560964 B1 2015.10.15. KR 101935570 B1 2019.01.07.KR 101935570 B1 2019.01.07.

이에 본 발명자는 상기한 종래 전기자동차용 충전수단들의 제반 문제점을 주행 중 충전 가능한 구성으로 해결코자 본 발명을 연구 개발한 것이다.Accordingly, the present inventor has researched and developed the present invention in order to solve the problems of the conventional charging means for electric vehicles described above with a configuration that can be charged while driving.

즉, 본 발명에서는 도로에 고주파발진기와 연결되어 있는 송전패널을 연속적으로 매설하고, 전기자동차에는 송전패널과 대향하는 대전패널을 설치하여 송전패널과 대전패널 사이에서 발생하는 전하의 이동이 이루어질 수 있도록 하고, 전기자동차에는 대전패널을 통해 제공된 전하를 정류하여 배터리에 충전할 수 있도록 하여 주행 중이나 주차 상태에서 안전한 충전이 제공될 수 있도록 함으로 해서 전기자동차 보급률을 높이고 화석에너지(휘발유 또는 경유) 사용 없이 전기자동차의 운행이 이루어질 수 있어 환경오염 염려도 일소할 수 있으며, 충전에 따른 시간 낭비가 없는 충전 인프라 구축을 실현할 수 있도록 한 전기자동차용 무선충전장치를 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.That is, in the present invention, a power transmission panel connected to a high-frequency oscillator is continuously buried in a road, and a charging panel facing the power transmission panel is installed in an electric vehicle so that the electric charge generated between the power transmission panel and the charging panel can be moved. In addition, electric vehicles can be charged in the battery by rectifying the electric charge provided through the charging panel so that safe charging can be provided while driving or parked, thereby increasing the penetration rate of electric vehicles and electricity without using fossil energy (gasoline or diesel) The present invention was completed with the technical task of the invention in mind by providing a wireless charging device for an electric vehicle that enables the operation of a vehicle, eliminates concerns about environmental pollution, and enables the establishment of a charging infrastructure without wasting time due to charging. will be.

과제 해결 수단으로 본 발명에서는 첫째 고주파발진기와 전기적으로 연결된 상태로 도로의 노면 아래쪽에 매설된 송전패널과; 상기 송전패널과 대향하도록 전기자동차의 저면에 설치되어 전하 이동이 이루어지도록 한 대전패널과; 상기 대전패널로 이동된 전하를 정류하여 AC전류를 DC전류로 제공하는 정류수단과; 정류수단에서 정류된 DC전류를 배터리에 충전하는 충전수단을 포함하는 것을 특징으로 한다.In the present invention as a means to solve the problem, first, a power transmission panel buried under the road surface in a state of being electrically connected to a high-frequency oscillator; a charging panel installed on a bottom surface of the electric vehicle to face the power transmission panel and configured to transfer electric charges; rectifying means for rectifying the electric charge transferred to the charging panel to provide an AC current as a DC current; It characterized in that it comprises a charging means for charging the DC current rectified by the rectifying means to the battery.

둘째 상기 송전패널은 판상의 금속판을 요철형으로 절곡하며 상하 관통되는 결합구멍을 형성하여 도로와 긴밀하게 고정되도록 한 것을 특징으로 한다.Second, the power transmission panel is characterized in that the plate-shaped metal plate is bent in a concave-convex shape and formed into a coupling hole penetrating up and down so that it is closely fixed to the road.

셋째 상기 송전패널에는 열선을 결합하여 노면이 결빙되는 것을 방지할 수 있도록 한 것을 특징으로 한다.Third, it is characterized in that the power transmission panel is coupled to a heating wire to prevent the road surface from freezing.

넷째 상기 대전패널은 전기자동차에 설치된 승강수단에 의해 지면과의 높이 조절이 이루어질 수 있도록 한 것을 특징으로 한다.Fourth, the charging panel is characterized in that it is possible to adjust the height with the ground by means of elevating means installed in the electric vehicle.

다섯째 상기 정류수단은, 전하를 AC 전류로 흘리는 트랜스와; AC 전류를 DC 전류로 변환하는 브리지 다이오드로 구성되며; 상기 트랜스의 1차 코일의 일단은 대전패널과 연결되고 타단은 차체에 연결되며, 2차 코일은 양단은 브리지의 브리지 다이오드의 AC 입력단자에 연결되고 브리지 다이오드의 (+)(-)출력단자에는 배터리에 전원을 충전하는 충전 수단과 전기적으로 연결된 것을 특징으로 한다.Fifth, the rectifying means includes: a transformer for flowing electric charges as AC current; It consists of a bridge diode that converts AC current to DC current; One end of the primary coil of the transformer is connected to the charging panel and the other end is connected to the vehicle body, the secondary coil has both ends connected to the AC input terminal of the bridge diode of the bridge, and to the (+) (-) output terminal of the bridge diode. It is characterized in that it is electrically connected to a charging means for charging power to the battery.

본 발명에서 제공하는 전기자동차용 무선충전장치를 사용하는 경우 하기와 같은 효과가 있다.When the wireless charging device for an electric vehicle provided in the present invention is used, the following effects are obtained.

-별도의 구조물 없이 도로에 고주파발진기만 매설하면 되므로 충전 인프라에 다른 비용을 절감할 수 있다.- It is possible to save other costs for the charging infrastructure because only the high-frequency oscillator needs to be buried in the road without a separate structure

-전기자동차가 주행 또는 주차 중에 충전이 가능하므로 충전에 따른 시간적 제약이 없다.- Electric vehicles can be charged while driving or parked, so there is no time limit for charging.

-송전패널이 요철형으로 형성되고 또한 열선이 결합되어 있어 도로와의 결합성이 뛰어나고, 동절기 도로의 결빙예방도 가능하다.- Since the power transmission panel is formed in a concave-convex shape and the heating wire is connected, it is excellent in compatibility with the road, and it is possible to prevent icing on the road in winter.

-전기자동차의 충전 문제점 해결로 전기자동차 보급을 확대할 수 있고, 그로 인해 대기 환경을 개선할 수 있다.- By solving the charging problem of electric vehicles, the supply of electric vehicles can be expanded, thereby improving the atmospheric environment.

도 1은 본 발명에서 제공하는 전기자동차용 무선충전장치의 바람직한 일 실시례를 보인 개념도
도 2는 본 발명에서의 송전패널의 예를 보인 사시도
도 3은 본 발명에서의 송전패널을 도로에 매설한 예를 보인 개념도
도 4는 정전용량을 설명하기 위한 도면1 is a conceptual diagram showing a preferred embodiment of a wireless charging device for an electric vehicle provided by the present invention;
2 is a perspective view showing an example of a power transmission panel in the present invention;
3 is a conceptual view showing an example in which the power transmission panel in the present invention is buried in a road;
4 is a diagram for explaining the capacitance;

이하 본 발명에서 제공하는 전기자동차용 무선충전장치의 바람직한 실시례를 첨부 도면에 의거하여 설명한다.Hereinafter, a preferred embodiment of the wireless charging device for an electric vehicle provided in the present invention will be described based on the accompanying drawings.

도 1은 본 발명에서 제공하는 전기자동차용 무선충전장치의 바람직한 일 실시례를 보인 개념도를 도시한 것이고, 도 2는 본 발명에서의 송전패널(2)의 예를 보인 사시도, 도 3은 본 발명에서의 송전패널(2)을 도로(20)에 매설한 예를 보인 개념도를 도시한 것이다.1 is a conceptual diagram showing a preferred embodiment of a wireless charging device for an electric vehicle provided in the present invention, Figure 2 is a perspective view showing an example of the power transmission panel 2 in the present invention, Figure 3 is the present invention A conceptual diagram showing an example in which the power transmission panel 2 is buried in the road 20 is shown.

본 발명에서 제공하는 전기자동차용 무선충전장치(1)는 전기자동차(10)가 주행 중이나 주차 중에 송전패널(2)과 대전패널(3) 사이의 전하 이동에 의해 충전이 이루어질 수 있도록 한 것으로, 고주파발진기(4)와 전기적으로 연결된 상태로 도로(20)의 노면 아래쪽에 송전패널(2)을 매설하고, 상기 송전패널(2)과 대향하도록 전기자동차(10)의 저면에 대전패널(3)을 설치하여 송전패널(2)에서 대전패널(3)로 전하 이동이 이루어지도록 하고, 상기 대전패널(3)로 이동된 전하를 정류수단(5)으로 정류한 후 정류수단(5)에서 정류된 전기에너지를 배터리(11)에 충전하는 충전수단(6)을 제공할 수 있도록 한 것이다.The wireless charging device (1) for an electric vehicle provided in the present invention is such that the electric vehicle (10) can be charged by the transfer of electric charges between the power transmission panel (2) and the charging panel (3) during driving or parking, The power transmission panel 2 is buried under the road surface of the road 20 in a state of being electrically connected to the high-frequency oscillator 4, and the charging panel 3 is placed on the bottom surface of the electric vehicle 10 to face the power transmission panel 2 is installed so that the charge is transferred from the power transmission panel 2 to the charging panel 3, and the charge transferred to the charging panel 3 is rectified by the rectifying means 5 and then rectified by the rectifying means 5 It is intended to provide a charging means 6 for charging the battery 11 with electrical energy.

이와 같은 전기자동차용 무선충전장치(1)를 제공하기 위해서 먼저 주차장 바닥 또는 도로(20)에는 고주파발진기(4)와 전기적으로 연결되어 있는 송전패널(2)을 매설하고, 전기자동차(10)에 대전패널(3)을 결합한다. In order to provide such a wireless charging device (1) for an electric vehicle, first, a power transmission panel (2) electrically connected to a high-frequency oscillator (4) is buried in a parking lot floor or a road (20), and in the electric vehicle (10) Connect the charging panel (3).

이때 고주파발진기(4)는 20~100㎑인 고주파를 송전패널(2)로 송신하는 역할을 하며, 고주파발진기(4)와 전기적으로 연결되어 있는 송전패널(2)과, 전기자동차(10)에 설치되어 있는 대전패널(3)이 서로 마주볼 때 이들 사이의 공간에는 고주파발진기(4)에서 발진된 20~100㎑의 고주파에 의해 전하가 형성되며, 이들 전하는 대전패널을 통해 이동하게 되는 것으로, 정전용량의 예와 같은 원리로 전하 이동이 이루어진다.At this time, the high frequency oscillator 4 serves to transmit a high frequency of 20 to 100 kHz to the power transmission panel 2 , and to the power transmission panel 2 electrically connected to the high frequency oscillator 4 and the electric vehicle 10 . When the installed charging panels 3 face each other, charges are formed in the space between them by the high frequency of 20-100 kHz oscillated by the high-frequency oscillator 4, and these charges move through the charging panel, Charge transfer occurs on the same principle as in the example of capacitance.

즉, 정전용량은 도체간에서 전위를 주었을 때 전하를 축전하는 것으로, 도 4와 같은 두장의 극판간 용량은

Figure pat00001
이다.That is, the capacitance is to store electric charge when a potential is applied between conductors, and the capacitance between the two plates as shown in FIG. 4 is
Figure pat00001
to be.

상기 송전패널(2)은 도 2에 도시된 바와 같이 금속판을 요철형으로 형성되어 있으며, 또한 상하 관통하는 결합구멍(2a)을 일정 간격으로 형성하여 도로(20) 등에 매설할 때 시멘트몰탈 또는 아스콘이 결합구멍(2a)으로 유입되어 견고한 결합상태를 유지할 수 있도록 한다. 이때 금속판에 결합구멍(2a)을 먼저 천공한 후 요철형으로 절곡함이 바람직하다.As shown in FIG. 2, the power transmission panel 2 is formed in a concave-convex shape with a metal plate, and when buried in a road 20 by forming coupling holes 2a penetrating up and down at regular intervals, cement mortar or asphalt concrete It flows into the coupling hole (2a) to maintain a solid coupling state. At this time, it is preferable to first drill the coupling hole (2a) in the metal plate and then bend it into an uneven shape.

또한 송전패널(2)에는 열선(2b)을 일정간격으로 설치하고, 전원을 인가하여 발열될 수 있도록 하여 동절기 노면이 결빙되거나 적설되는 것을 방지하여 안전한 노면 상태를 제공할 수 있도록 한다.In addition, heating wires 2b are installed on the power transmission panel 2 at regular intervals, and power is applied to generate heat, thereby preventing the road surface from freezing or snowing in the winter season, thereby providing a safe road surface condition.

상기 송전패널(2)은 도 3에 도시된 바와 같이 규격화 하여 도로(20)에 연속적으로 매설하며, 송전패널(2)과 연결되어 있는 고주파발진기(4)들과 열선(2b)을 별도의 제어기(7)와 전기적으로 연결하여 제어될 수 있도록 한다. The power transmission panel 2 is standardized as shown in FIG. 3 and is continuously buried in the road 20, and the high-frequency oscillators 4 and the heating wire 2b connected to the power transmission panel 2 are separate controllers. (7) and electrically connect to it so that it can be controlled.

전기자동차(10)에 설치되는 대전패널(3)은 넓은 판상으로 이루어진다. 대전패널(3)의 경우 송전패널(2)과 일정한 거리를 유지하도록 하며, 바람직하기로는 1~10cm 범위이다. The charging panel 3 installed in the electric vehicle 10 is formed in a wide plate shape. In the case of the charging panel 3, a constant distance from the power transmission panel 2 is maintained, preferably in the range of 1 to 10 cm.

일반적인 전기자동차(10)들의 경우 차종에 따라 바퀴의 크기가 다르고, 노면과 차체 사이의 간격이 상이하므로, 본 발명에서는 대전패널(3)을 승강되는 구성으로 제공하고 항상 도로(20)에 매설되어 있는 송전패널(2)과 최적의 간격을 유지할 수 있도록 구성한다.In the case of general electric vehicles (10), the size of the wheels is different depending on the vehicle type, and the distance between the road surface and the vehicle body is different. Therefore, in the present invention, the charging panel 3 is provided in a raised and lowered configuration and is always buried in the road 20. It is configured to maintain an optimal distance from the power transmission panel (2).

본 발명에서는 솔레노이드 또는 볼스크루와 같은 승강수단(8)의 일단(실린더 본체)을 차제에 고정하고, 타단(로드)을 대전패널(3)에 고정하여, 대전패널(3)을 1~20cm 사이에서 다양한 높이로 승강할 수 있도록 한다.In the present invention, one end (cylinder body) of the elevating means 8, such as a solenoid or a ball screw, is fixed to the vehicle, and the other end (rod) is fixed to the charging panel 3, and the charging panel 3 is positioned between 1 and 20 cm. to be able to ascend and descend to various heights.

상기 대전패널(3)은 상기 대전패널(3)로 이동된 전하를 정류수단(5)으로 AC전류에서 DC 전류로 정류한 후 정류수단(5)에서 정류되어 공급된 DC 전류를 배터리(11)에 충전하는 충전수단(6)을 제공할 수 있도록 한 것이다.The charging panel (3) rectifies the electric charge transferred to the charging panel (3) from AC current to DC current by means of a rectifying means (5), and then rectifies the DC current supplied by the rectification means (5) to a battery (11). It is intended to provide a charging means (6) for charging the .

AC전류에서 DC 전류로 정류하는 상기 정류수단(5)은, 송전패널(2)에서 대전패널(3)로 이동된 전하를 AC 전류로 흘리는 트랜스(5a)와, AC 전류를 DC 전류로 변환하는 브리지 다이오드(5b)로 구성된다.The rectifying means (5) for rectifying AC current to DC current includes a transformer (5a) that flows the electric charge moved from the power transmission panel (2) to the charging panel (3) into an AC current, and converts the AC current into a DC current. It is composed of a bridge diode 5b.

상기 트랜스(5a)는 1차 코일의 일단은 대전패널(3)과 연결되고 타단은 차체에 연결되며, 2차 코일은 양단은 브리지 다이오드(5b)의 AC 입력단자에 연결되고 브리지 다이오드(5b)의 (+)(-)출력단자에는 충전하는 충전수단(6)와 전기적으로 연결된다.In the transformer 5a, one end of the primary coil is connected to the charging panel 3 and the other end is connected to the vehicle body, and the secondary coil has both ends connected to the AC input terminal of the bridge diode 5b and the bridge diode 5b. The (+) (-) output terminal of the (+) (-) is electrically connected to the charging means (6) for charging.

이상과 같이 구성되는 본 발명의 전기자동차용 무선충전장치(1)에 의하면, 송전패널(2)이 매설되어 있는 도로(20)를 전기자동차(10)가 주행하거나 또는 송전패널(2)이 매설되어 있는 주차장에 전기자동차(10)를 주차한 상태에서 고주파발진기(4)를 작동시키면 송전패널(2)과 전기자동차(10)에 설치되어 있는 대전패널(3) 사이에 전하 이동이 발생하게 되고, 대전패널(3)로 이동된 전하는 정류수단(5)에 의해 AC 전류를 DC 전류로 변환되어 충전수단(6)을 거쳐 배터리(11)로 충전이 이루어지게 되는 것이다.According to the wireless charging device 1 for an electric vehicle of the present invention configured as described above, the electric vehicle 10 runs on the road 20 in which the power transmission panel 2 is buried, or the power transmission panel 2 is buried When the high-frequency oscillator 4 is operated in a state in which the electric vehicle 10 is parked in the parking lot, charge transfer occurs between the power transmission panel 2 and the charging panel 3 installed in the electric vehicle 10. , the electric charge transferred to the charging panel 3 is converted into an AC current into a DC current by the rectifying means 5 , and is then charged to the battery 11 through the charging means 6 .

따라서 본 발명을 사용하는 경우 종래와 같이 지상에 충전장비를 설치하는 등의 번거로움을 해소하면서 안전한 충전이 가능하며, 또한 도로(20)에 적용할 경우 주행 중에도 충전이 가능하므로, 전기자동차(10)의 보급률 확대를 기대할 수 있고, 저렴한 비용으로 전기자동차(10)의 주행이 가능하며, 매연 발생을 없앨 수 있어 환경개선에도 일조할 수 있는 것이다.Therefore, when the present invention is used, safe charging is possible while eliminating the hassle of installing charging equipment on the ground as in the prior art, and when applied to the road 20, charging is possible even while driving, so the electric vehicle 10 ) can be expected to increase the penetration rate, the electric vehicle 10 can be driven at a low cost, and it is possible to eliminate the generation of soot, thereby contributing to the improvement of the environment.

본 발명의 상세한 설명에서는 구체적인 실시례에 관해 설명하고 있으나, 본 발명의 범주에서 벗어나지 않는 한도 내에서 다양한 변형이 가능함은 물론이다. 그러므로 본 발명의 보호 범위는 설명된 실시례에 국한되어 정해져서는 안 되며, 후술하는 청구범위 뿐만 아니라 균등한 것들에 의해 정해져야 한다.In the detailed description of the present invention, although specific embodiments are described, various modifications are possible without departing from the scope of the present invention. Therefore, the protection scope of the present invention should not be limited to the described embodiments, and should be defined by the following claims as well as equivalents.

1:전기자동차용 무선충전장치 2:송전패널
2a:결합구멍 2b:열선
3:대전패널 4:고주파발진기
5:정류수단 5a:트랜스
5b:브리지 다이오드 6:충전수단
7:제어기 8:승강수단
10:전기자동차 11:배터리
20:도로1: Wireless charging device for electric vehicle 2: Transmission panel
2a: coupling hole 2b: hot wire
3: electrified panel 4: high frequency oscillator
5: Rectification means 5a: Transformer
5b: bridge diode 6: charging means
7: Controller 8: Elevating means
10: Electric vehicle 11: Battery
20: road

Claims (5)

고주파발진기(4)와 전기적으로 연결된 상태로 도로(20)의 노면 아래쪽에 매설된 송전패널(2)과;
상기 송전패널(2)과 대향하도록 전기자동차(10)의 저면에 설치되어 전하 이동이 이루어지도록 한 대전패널(3)과;
상기 대전패널(3)로 이동된 전하를 정류하여 AC전류를 DC전류로 제공하는 정류수단(5)과;
정류수단(5)에서 정류된 DC전류를 배터리(11)에 충전하는 충전수단(6)을 포함하는 것을 특징으로 하는 전기자동차용 무선충전장치.
a power transmission panel 2 buried under the road surface of the road 20 in a state of being electrically connected to the high-frequency oscillator 4;
a charging panel (3) installed on the bottom surface of the electric vehicle (10) to face the power transmission panel (2) so that electric charges are transferred;
a rectifying means (5) for rectifying the electric charge transferred to the charging panel (3) and providing an AC current as a DC current;
A wireless charging device for an electric vehicle, comprising a charging means (6) for charging the battery (11) with the DC current rectified by the rectifying means (5).
 청구항 1에 있어서;
상기 송전패널(2)은 요철형으로 절곡되며 상하 관통되는 결합구멍(2a)을 형성하여 도로(20)와 긴밀하게 고정되도록 한 것을 특징으로 하는 전기자동차용 무선충전장치.
The method of claim 1 ;
The power transmission panel (2) is bent in a concave-convex shape and formed into a coupling hole (2a) penetrating up and down to be tightly fixed to the road (20).
 청구항 2에 있어서;
상기 송전패널(2)에는 열선(2b)을 결합하여 노면이 결빙되는 것을 방지할 수 있도록 한 것을 특징으로 하는 전기자동차용 무선충전장치.
3. The method of claim 2;
A wireless charging device for an electric vehicle, characterized in that by coupling a heating wire (2b) to the power transmission panel (2) to prevent the road surface from freezing.
 청구항 1에 있어서;
상기 대전패널(3)은 전기자동차(10)에 설치된 승강수단(8)에 의해 지면과의 높이 조절이 이루어질 수 있도록 한 것을 특징으로 하는 전기자동차용 무선충전장치.
The method of claim 1 ;
The charging panel (3) is a wireless charging device for an electric vehicle, characterized in that the height can be adjusted with the ground by the lifting means (8) installed in the electric vehicle (10).
 청구항 1에 있어서;
상기 정류수단(5)은 전하를 AC 전류로 흘리는 트랜스(5a)와;
AC 전류를 DC 전류로 변환하는 브리지 다이오드(5b)로 구성되며;
상기 트랜스(5a)의 1차 코일의 일단은 대전패널(3)과 연결되고 타단은 차체에 연결되며, 2차 코일은 양단은 브리지의 브리지 다이오드(5b)의 AC 입력단자에 연결되고 브리지 다이오드(5b)의 (+)(-)출력단자에는 배터리에 전원을 충전하는 충전수단(6)과 전기적으로 연결된 것을 특징으로 하는 전기자동차용 무선충전장치.The method of claim 1 ;
The rectifying means (5) includes a transformer (5a) for passing electric charges as AC current;
composed of a bridge diode 5b that converts AC current into DC current;
One end of the primary coil of the transformer 5a is connected to the charging panel 3 and the other end is connected to the vehicle body, and the secondary coil has both ends connected to the AC input terminal of the bridge diode 5b of the bridge and the bridge diode ( A wireless charging device for an electric vehicle, characterized in that the (+) (-) output terminal of 5b) is electrically connected to a charging means (6) for charging power to the battery.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115583169A (en) * 2022-10-17 2023-01-10 重庆大学 Electric field coupling type electric automobile dynamic wireless charging system and parameter design method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110065584A (en) 2009-12-10 2011-06-16 김영수 Device capable of rotary motion and rectilineal movement
KR101231896B1 (en) 2011-11-24 2013-02-22 이진국 Charging equipment of an electric car
KR101560964B1 (en) 2011-05-27 2015-10-15 닛산 지도우샤 가부시키가이샤 Contactless electricity supply device
KR101935570B1 (en) 2018-06-08 2019-01-07 (주)그린파워 A wireless electric power transmitting device for electric vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110065584A (en) 2009-12-10 2011-06-16 김영수 Device capable of rotary motion and rectilineal movement
KR101560964B1 (en) 2011-05-27 2015-10-15 닛산 지도우샤 가부시키가이샤 Contactless electricity supply device
KR101231896B1 (en) 2011-11-24 2013-02-22 이진국 Charging equipment of an electric car
KR101935570B1 (en) 2018-06-08 2019-01-07 (주)그린파워 A wireless electric power transmitting device for electric vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115583169A (en) * 2022-10-17 2023-01-10 重庆大学 Electric field coupling type electric automobile dynamic wireless charging system and parameter design method thereof
CN115583169B (en) * 2022-10-17 2024-08-23 重庆大学 Electric field coupling type electric automobile dynamic wireless charging system and parameter design method thereof

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