JP2012210099A - Charging system - Google Patents
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- JP2012210099A JP2012210099A JP2011074699A JP2011074699A JP2012210099A JP 2012210099 A JP2012210099 A JP 2012210099A JP 2011074699 A JP2011074699 A JP 2011074699A JP 2011074699 A JP2011074699 A JP 2011074699A JP 2012210099 A JP2012210099 A JP 2012210099A
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Description
本発明は、電磁結合方式により電気自動車に充電を行う充電システムに関する。 The present invention relates to a charging system that charges an electric vehicle using an electromagnetic coupling method.
従来、電気自動車用充電システムとして、壁面に充電用電源に連なる一次コイルを設け、一方、電気自動車の前部バンパー側に上記一次コイルと電磁結合をなす二次コイを収納させ、一次コイルと二次コイルとが接近するように電気自動車を駐車させて充電を行うようにしたものが知られている。また、一次コイルを車幅方向に移動可能とし、センサを用いて一次コイルと二次コイルとの位置を合わせるようにしている（特許文献１参照）。 Conventionally, as a charging system for an electric vehicle, a primary coil connected to a charging power source is provided on a wall surface, while a secondary coil that electromagnetically couples with the primary coil is housed on the front bumper side of the electric vehicle. An electric vehicle is parked and charged so as to approach the next coil. In addition, the primary coil is movable in the vehicle width direction, and the positions of the primary coil and the secondary coil are aligned using a sensor (see Patent Document 1).
充電を行う際は一次コイルと二次コイルとの位置を合わせる必要がある。上記従来の充電システムにおいては、車両の前部に二次コイルが配置されているため、充電を行う際に運転者は車両の前後方向に位置を合わせる必要があった。また、上記従来の充電システムにおいては、一次コイルと二次コイルとの車幅方向の位置を合わせるために、別途センサを用いて一次コイルを車幅方向に移動可能する機構を有するため、機構が複雑なものであった。 When charging, it is necessary to align the positions of the primary coil and the secondary coil. In the conventional charging system, since the secondary coil is arranged at the front of the vehicle, the driver needs to align the position in the front-rear direction of the vehicle when charging. Further, in the above conventional charging system, in order to align the position of the primary coil and the secondary coil in the vehicle width direction, the mechanism has a mechanism that can move the primary coil in the vehicle width direction using a separate sensor. It was complicated.
本発明は、従来の問題を解決するためになされたもので、簡易な機構で運転者が一次コイルと二次コイルとの位置合わせを容易に行うことができる充電システムを提供することを目的とする。 The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a charging system that allows a driver to easily align a primary coil and a secondary coil with a simple mechanism. To do.
上記課題を解決するため、本発明の充電システムは、電気自動車の側部に設けられ、当該電気自動車の蓄電装置に電気的に接続される受電コイルを有する受電部と、充電時において駐車状態での前記電気自動車側部の受電部側に傾倒可能に支持された支持部材を有する本体と、前記支持部材の先端に設けられ、前記受電部の受電コイルと電磁結合をなして電源からの充電電力を前記受電部に供給する給電コイルを有する給電部と、を備える構成を採る。 In order to solve the above problems, a charging system according to the present invention is provided in a side portion of an electric vehicle, and includes a power receiving unit having a power receiving coil that is electrically connected to a power storage device of the electric vehicle, and in a parking state during charging. A main body having a support member that is tiltably supported on the power receiving unit side of the electric vehicle side, and charging power from a power source that is provided at a tip of the support member and electromagnetically coupled to a power receiving coil of the power receiving unit And a power supply unit having a power supply coil that supplies the power reception unit to the power reception unit.
本発明は、電気自動車の側部に設けられた受電部に、本体を傾倒させて給電部を接触させる構成を採る。本体を傾倒させることで、車両における若干の車幅方向の位置ずれは吸収することができる。従って、運転者は、車両の車幅方向の厳密な位置あわせを行う必要がなく、車両の前後方向の位置あわせのみに注意すればよい。また、本体自体にセンサ等を用いる必要がなく給電部を傾倒できるものであれば良いので、システム全体は簡易な機構となる。このように、本発明によれば、簡易な機構で運転者が一次コイルと二次コイルとの位置合わせを容易に行うことができる充電可能な充電システムを提供することができる。 The present invention adopts a configuration in which a power receiving unit provided on a side portion of an electric vehicle is brought into contact with a power feeding unit by tilting a main body. By tilting the main body, a slight displacement in the vehicle width direction in the vehicle can be absorbed. Therefore, the driver does not need to perform exact alignment in the vehicle width direction of the vehicle, and only needs to pay attention to alignment in the front-rear direction of the vehicle. In addition, since it is not necessary to use a sensor or the like for the main body itself as long as the power feeding unit can be tilted, the entire system is a simple mechanism. Thus, according to the present invention, it is possible to provide a rechargeable charging system that allows the driver to easily align the primary coil and the secondary coil with a simple mechanism.
以下、本発明の実施の形態について、図面を参照して詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図１は、充電システムの概要構成説明図である。車両充電システム１０は、電気自動車（以下、車両）１１の左側部１２に設けられ受電コイル３５（図３）が配置された受電部１３と、支持部材１４に支持され給電コイル３１（図３）を収納した給電部１５と、給電部１５を受電部１３に当接させて受電コイル３５と給電コイル３１とを電磁結合させるように、支持部材を車両１１側に傾倒可能に支持する本体１６と、を備えている。ここで、支持部材１４、給電部１５及び本体１６は車両充電装置２０を構成している。 FIG. 1 is an explanatory diagram of a schematic configuration of a charging system. The vehicle charging system 10 includes a power receiving unit 13 provided on the left side 12 of an electric vehicle (hereinafter referred to as a vehicle) 11 and a power receiving coil 35 (FIG. 3) disposed thereon, and a power supply coil 31 (FIG. 3) supported by a support member 14. And a main body 16 that supports the support member in a tiltable manner toward the vehicle 11 so that the power receiving coil 35 and the power feeding coil 31 are electromagnetically coupled by bringing the power feeding unit 15 into contact with the power receiving unit 13. It is equipped with. Here, the support member 14, the power feeding unit 15, and the main body 16 constitute a vehicle charging device 20.
図２は、車両充電装置２０の詳細構成説明図である。 FIG. 2 is a detailed configuration explanatory view of the vehicle charging device 20.
支持部材１４は、車両１１の高さ方向に給電部１５を移動可能とする上下方向調整レール２１により、給電部１５の高さ位置を調整可能とされている。支持部材１４中には、電源からの充電電力を給電部１５に供給するケーブル１４Ａが設けられている。 The support member 14 can adjust the height position of the power feeding unit 15 by a vertical adjustment rail 21 that allows the power feeding unit 15 to move in the height direction of the vehicle 11. In the support member 14, a cable 14 </ b> A that supplies charging power from a power source to the power feeding unit 15 is provided.
給電部１５は、オペレータが給電部１５の車両１１への当接位置を調整するためのハンドル２２と、給電部１５を受電部１３に当接させる際に、車両１１が傷つくことを防止するための発泡樹脂製（例えば、ウレタン樹脂製）の保護パッド２３と、を備えている。保護パッド２３は受電部１３への当接面を覆っている。 The power feeding unit 15 prevents the vehicle 11 from being damaged when the operator brings the power feeding unit 15 into contact with the power receiving unit 13 and the handle 22 for adjusting the contact position of the power feeding unit 15 with the vehicle 11. And a protective pad 23 made of foamed resin (for example, urethane resin). The protective pad 23 covers the contact surface with the power receiving unit 13.
本体１６は、充電ポールとして構成され支持部材１４を所望の傾倒位置で保持可能なワイヤ２５と、ワイヤ２５が巻回されたプーリ２６と、プーリ２６を回転駆動してワイヤ２５に所定の張力を付与するとともにワイヤ２５を巻き取るためのモータ２７と、を備えている。 The main body 16 is configured as a charging pole, and can hold the support member 14 at a desired tilted position, a pulley 26 around which the wire 25 is wound, a pulley 26 that rotates and applies a predetermined tension to the wire 25. And a motor 27 for winding and winding the wire 25.
充電に際して、オペレータがハンドル２２を持って、給電部１５を傾倒させると、モータ２７は、所定の張力がかかった状態で、給電部１５を傾倒させるとともに、給電部１５の傾倒された位置を保持するように動作する。 When charging, when the operator holds the handle 22 and tilts the power feeding unit 15, the motor 27 tilts the power feeding unit 15 while holding a predetermined tension and holds the tilted position of the power feeding unit 15. To work.
なお、給電部１５に車両１１の位置を検出するセンサ（距離センサあるいは近接センサなど）を設け、自動的に給電部１５を車両１１から所定距離離れた位置まで自動的に傾倒させるように構成することも可能である。 A sensor (such as a distance sensor or a proximity sensor) that detects the position of the vehicle 11 is provided in the power supply unit 15 so that the power supply unit 15 is automatically tilted to a position that is a predetermined distance away from the vehicle 11. It is also possible.
図３は、受電部１３及び給電部１５の詳細構成説明図である。 FIG. 3 is an explanatory diagram of detailed configurations of the power receiving unit 13 and the power feeding unit 15.
受電部１３は、給電部１５との電磁結合を妨げないように、樹脂部材で表面が形成されており、その内部には、円形状（又は環状）の受電コイル３５が車両１１の側部と並行に配置されている。受電コイル３５は車両１１内に装備された蓄電装置（バッテリー）に電気的に接続されている。 The power reception unit 13 has a surface formed of a resin member so as not to hinder electromagnetic coupling with the power supply unit 15, and a circular (or annular) power reception coil 35 is connected to the side of the vehicle 11. They are arranged in parallel. The power receiving coil 35 is electrically connected to a power storage device (battery) installed in the vehicle 11.
受電部１３の給電部１５との対向面において、受電コイル３５の周囲には、給電部１５の受電部１３との対向面に設けられた複数の磁石３２と共働して、給電部１５を車両１１の側部に当接させた状態で保持する複数の磁石３３が円状に配置されている。この場合において、複数の磁石３２及び複数の磁石３３は、それぞれ極性が交互になるように配置することで、位置合わせを容易としている。受電コイル３５は複数の磁石３３が配置されている周域内に配置されている。 On the surface of the power receiving unit 13 facing the power feeding unit 15, around the power receiving coil 35, the power feeding unit 15 is operated in cooperation with a plurality of magnets 32 provided on the surface facing the power receiving unit 13 of the power feeding unit 15. A plurality of magnets 33 that are held in contact with the sides of the vehicle 11 are arranged in a circle. In this case, the plurality of magnets 32 and the plurality of magnets 33 are arranged so that the polarities are alternately arranged to facilitate alignment. The power receiving coil 35 is disposed in a peripheral region where the plurality of magnets 33 are disposed.
一方、給電部１５内にも円形状（又は環状）の給電コイル３１が収納されている。ここで、給電コイル３１の直径は、受電コイル３５の直径よりも大きく形成されており、給電部１５の当接位置が多少ずれたとしても、充電効率が低下しないようにされている。これら受電コイル３５の直径と給電コイル３１の直径の大小関係は上述の逆であっても良い。 On the other hand, a circular (or annular) feeding coil 31 is also housed in the feeding unit 15. Here, the diameter of the power feeding coil 31 is formed to be larger than the diameter of the power receiving coil 35, so that charging efficiency is not lowered even if the contact position of the power feeding unit 15 is slightly deviated. The magnitude relationship between the diameter of the power receiving coil 35 and the diameter of the power feeding coil 31 may be opposite to the above.
また給電部１５の上部には、充電時に点灯されるＬＥＤランプ４１が設けられている。 In addition, an LED lamp 41 that is turned on at the time of charging is provided on the upper part of the power supply unit 15.
次に充電時の操作について説明する。 Next, operations during charging will be described.
図４は、充電時の車両１１の停車位置の説明図（平面図）である。図５は、充電時の充電装置の操作状態説明図である。 FIG. 4 is an explanatory diagram (plan view) of the stop position of the vehicle 11 during charging. FIG. 5 is an explanatory diagram of the operating state of the charging device during charging.
充電時には、図４に示すように、タイヤ止めＳＴＰに車両１１のタイヤＷＬが当接する状態で停車させる。 At the time of charging, as shown in FIG. 4, the vehicle is stopped with the tire WL of the vehicle 11 in contact with the tire stop STP.
オペレータは、図５に示すように、給電部１５の上部のハンドル２２を持って、給電部１５を支持部材１４ととともに傾倒させ、給電部１５の位置が、丁度、受電部１３に対向する位置とする。このとき、モータ２７は、ワイヤ２５に所定の張力がかかった状態で、給電部１５を傾倒させるとともに、給電部１５の傾倒された位置を保持するように動作する。 As shown in FIG. 5, the operator holds the handle 22 at the top of the power supply unit 15, tilts the power supply unit 15 together with the support member 14, and the position of the power supply unit 15 is just opposite to the power reception unit 13. And At this time, the motor 27 operates to tilt the power feeding unit 15 and to hold the tilted position of the power feeding unit 15 while a predetermined tension is applied to the wire 25.
次いで、オペレータは、給電部１５を受電部１３にほぼ並行に対向した状態で車両１１に押しつける。これにより、給電部１５は、磁石３２及び磁石３３により車両１１の表面に吸着される。このとき、複数の磁石３２及び複数の磁石３３は、それぞれ極性が異なるようにされているので、磁石３２は、車両１１に対して所定の位置に給電部１５を吸着させることが可能となる。 Next, the operator presses the power feeding unit 15 against the vehicle 11 in a state of facing the power receiving unit 13 substantially in parallel. Thereby, the power feeding unit 15 is attracted to the surface of the vehicle 11 by the magnet 32 and the magnet 33. At this time, since the plurality of magnets 32 and the plurality of magnets 33 have different polarities, the magnet 32 can attract the power feeding unit 15 to the vehicle 11 at a predetermined position.
車両充電装置２０のコントローラ（図示せず）は、受電コイル３５及び給電コイル３１が電磁結合可能な状態になったことを検出すると、ＬＥＤランプ４１を点灯させて、オペレータにその旨を通知するとともに、充電電流を供給する。 When the controller (not shown) of the vehicle charging device 20 detects that the power receiving coil 35 and the power feeding coil 31 are in a state where electromagnetic coupling is possible, the LED lamp 41 is turned on to notify the operator accordingly. Supply the charging current.
以上の説明のように、本実施の形態の車両充電システム１０では、車両１１の側部に受電部１３に、本体１６を傾倒させて給電部１５を接触させる構成を採る。本体１６を傾倒させることで、車両１１における若干の車幅方向の位置ずれは吸収することができる。従って、運転者は、車両１１の車幅方向の厳密な位置あわせを行う必要がなく、車両の前後方向の位置あわせのみに注意すればよい。また、本体１６自体にセンサ等を用いる必要がなく給電部１５を傾倒できるものであれば良いので、システム全体は簡易な機構となる。このように、本実施の形態によれば、簡易な機構で運転者が受電コイル３５と給電コイル３１との位置合わせを容易に行うことができる。 As described above, the vehicle charging system 10 according to the present embodiment employs a configuration in which the power receiving unit 13 is tilted to the side of the vehicle 11 and the main body 16 is tilted to contact the power feeding unit 15. By tilting the main body 16, a slight positional deviation in the vehicle width direction in the vehicle 11 can be absorbed. Therefore, the driver does not need to perform exact alignment of the vehicle 11 in the vehicle width direction, and only needs to pay attention to alignment of the vehicle in the front-rear direction. In addition, since it is not necessary to use a sensor or the like for the main body 16 itself as long as the power feeding unit 15 can be tilted, the entire system is a simple mechanism. Thus, according to the present embodiment, the driver can easily align the power receiving coil 35 and the power feeding coil 31 with a simple mechanism.
また、本実施の形態によれば、車両１１の側部に受電部１３（受電コイル３５）を配置し、車両１１が所定位置に停車した状態で、電磁結合を行わせるべく給電部１５を受電部１３に当接させるので、確実に受電コイル３５と給電コイル３１との間で電磁結合させることができる。 Further, according to the present embodiment, the power receiving unit 13 (the power receiving coil 35) is arranged on the side portion of the vehicle 11, and the power feeding unit 15 receives power to perform electromagnetic coupling in a state where the vehicle 11 is stopped at a predetermined position. Since it is brought into contact with the portion 13, it is possible to reliably perform electromagnetic coupling between the power receiving coil 35 and the power feeding coil 31.
このとき、受電部１３と給電部１５とを機械的に結合させるのではなく、電磁結合させるので、取り回しが容易であり、円滑に充電を開始することが可能となる。 At this time, the power receiving unit 13 and the power feeding unit 15 are not mechanically coupled, but are electromagnetically coupled. Therefore, handling is easy and charging can be started smoothly.
また、磁石３２及び磁石３３により受電部１３と、給電部１５とを、所定の位置関係に容易に配置することができる。 Further, the power receiving unit 13 and the power feeding unit 15 can be easily arranged in a predetermined positional relationship by the magnet 32 and the magnet 33.
また、車両１１の受電部１３を車両１１の側部１２に設けているので、車両１１を停車した状態で電気的接続を行うことができ、車両１１をぶつけたりして、充電不能な状態となることもなく確実に電磁結合による充電が行える。 In addition, since the power receiving unit 13 of the vehicle 11 is provided on the side portion 12 of the vehicle 11, electrical connection can be performed in a state where the vehicle 11 is stopped. Therefore, charging by electromagnetic coupling can be performed reliably.
さらに、受電部１３と、給電部１５の接続可能範囲が広いので、車両１１の停止位置の制限を緩和でき、運転技術を要求されることなく、誰でも給電が行える。 Furthermore, since the connectable range between the power reception unit 13 and the power supply unit 15 is wide, the restriction on the stop position of the vehicle 11 can be relaxed, and anyone can perform power supply without requiring driving technology.
さらにまた、受電部１３と給電部１５とは、磁石３２、３３により吸着しているだけであるので、万が一、受電部１３と、給電部１５とを吸着させた状態で、車両１１を移動させたとしても、受電部１３と、給電部１５とがずれて、給電が行えなくなるだけであり、車両１１を破損することもない。 Furthermore, since the power receiving unit 13 and the power feeding unit 15 are only attracted by the magnets 32 and 33, the vehicle 11 is moved in a state where the power receiving unit 13 and the power feeding unit 15 are attracted. Even so, the power receiving unit 13 and the power feeding unit 15 are shifted from each other, so that power feeding cannot be performed, and the vehicle 11 is not damaged.
本発明に係る実施の形態は種々の態様に変形可能である。例えば、給電部１５について、スライド機構あるいは回動機構を設け、車両の前後方向に移動可能な構成あるいは回動可能な構成とすれば、給電コイル３１の位置が異なる複数の車両（車種）への給電が可能となるとともに、より受電コイル３５と給電コイル３１との電磁結合を強固なものとして、充電効率の向上を図ることも可能となる。 Embodiments according to the present invention can be modified in various ways. For example, if the power supply unit 15 is provided with a slide mechanism or a rotation mechanism so as to be movable in the front-rear direction of the vehicle or configured to be able to rotate, the power supply coil 31 can be connected to a plurality of vehicles (vehicle types) having different positions. In addition to being able to supply power, the electromagnetic coupling between the power receiving coil 35 and the power supply coil 31 can be made stronger, and charging efficiency can be improved.
また、受電部１３について、ＬＥＤライト４１を給電コイル３１の周辺部に複数配置し、受電可能状態において、点灯させることで、給電部１５の配置位置をより明確に示すことが可能となる。 In addition, with respect to the power receiving unit 13, a plurality of LED lights 41 are arranged around the power feeding coil 31 and are turned on in a power receivable state, so that the arrangement position of the power feeding unit 15 can be shown more clearly.
なお、本実施の形態では、受電部１３に磁石３３を設け、給電部１５に磁石３２を設ける場合について説明したが、本発明はこれに限られず、受電部１３あるいは給電部１５のいずれか一方に磁石を配し、他方を磁性体の金属とすれば、同様の効果を得ることができる。 In the present embodiment, the case where the power receiving unit 13 is provided with the magnet 33 and the power feeding unit 15 is provided with the magnet 32 has been described. However, the present invention is not limited thereto, and either the power receiving unit 13 or the power feeding unit 15 is provided. The same effect can be obtained if a magnet is arranged on the other side and the other is made of a magnetic metal.
本発明は、電気自動車に充電を行う充電システムに用いるに好適である。 The present invention is suitable for use in a charging system that charges an electric vehicle.
１０ 車両充電システム
１１ 車両
１３ 受電部
１４ 支持部材
１５ 給電部
１６ 本体
２０ 車両充電装置
３１ 給電コイル
３２、３３ 磁石
３５ 受電コイル
DESCRIPTION OF SYMBOLS 10 Vehicle charging system 11 Vehicle 13 Power receiving part 14 Support member 15 Power feeding part 16 Main body 20 Vehicle charging device 31 Feeding coil 32, 33 Magnet 35 Power receiving coil
Claims (7)
充電時において駐車状態での前記電気自動車側部の受電部側に傾倒可能に支持された支持部材を有する本体と、
前記支持部材の先端に設けられ、前記受電部の受電コイルと電磁結合をなして電源からの充電電力を前記受電部に供給する給電コイルを有する給電部と、
を備えた充電システム。 A power receiving unit provided on a side portion of the electric vehicle and having a power receiving coil electrically connected to a power storage device of the electric vehicle;
A main body having a support member supported in a tiltable manner on the power receiving unit side of the electric vehicle side portion in a parked state during charging;
A power feeding unit provided at a tip of the support member, and having a power feeding coil that electromagnetically couples with a power receiving coil of the power receiving unit to supply charging power from a power source to the power receiving unit;
With a charging system.
前記ワイヤが巻回されたプーリと、
前記プーリを回転駆動するモータと、
を備えた請求項１又は請求項２に記載の充電システム。 The main body includes a wire capable of holding the support member at a desired tilt position;
A pulley around which the wire is wound;
A motor for rotationally driving the pulley;
The charging system according to claim 1 or 2, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011074699A JP2012210099A (en) | 2011-03-30 | 2011-03-30 | Charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011074699A JP2012210099A (en) | 2011-03-30 | 2011-03-30 | Charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2012210099A true JP2012210099A (en) | 2012-10-25 |
Family
ID=47189395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011074699A Withdrawn JP2012210099A (en) | 2011-03-30 | 2011-03-30 | Charging system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2012210099A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014193056A (en) * | 2013-03-28 | 2014-10-06 | Tdk Corp | Wireless power transmission device |
| CN110001404A (en) * | 2019-04-15 | 2019-07-12 | 吉林市萌鑫科技有限责任公司 | Vertical Circulating dynamic is filled can garage current collector |
-
2011
- 2011-03-30 JP JP2011074699A patent/JP2012210099A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014193056A (en) * | 2013-03-28 | 2014-10-06 | Tdk Corp | Wireless power transmission device |
| CN110001404A (en) * | 2019-04-15 | 2019-07-12 | 吉林市萌鑫科技有限责任公司 | Vertical Circulating dynamic is filled can garage current collector |
| CN110001404B (en) * | 2019-04-15 | 2023-10-27 | 吉林市萌鑫科技有限责任公司 | Vertical circulation type dynamic charging garage current collector |
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