WO2025041262A1 - Emc filter and charging system - Google Patents

Emc filter and charging system Download PDF

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Publication number
WO2025041262A1
WO2025041262A1 PCT/JP2023/030148 JP2023030148W WO2025041262A1 WO 2025041262 A1 WO2025041262 A1 WO 2025041262A1 JP 2023030148 W JP2023030148 W JP 2023030148W WO 2025041262 A1 WO2025041262 A1 WO 2025041262A1
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WIPO (PCT)
Prior art keywords
charging
power line
connector
emc filter
conversion adapter
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PCT/JP2023/030148
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French (fr)
Japanese (ja)
Inventor
宣博 木佛寺
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to PCT/JP2023/030148 priority Critical patent/WO2025041262A1/en
Publication of WO2025041262A1 publication Critical patent/WO2025041262A1/en
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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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
    • B60L53/10—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
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles

Definitions

  • This disclosure relates to EMC filters and charging systems.
  • charging stations installed at the destination may be used for charging. If the charging station has a different standard from the standard that the electric vehicle complies with, a conversion adapter is used (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).
  • the EMC filter disclosed herein is an EMC filter that suppresses common mode noise generated in power lines, and is connected between a vehicle's charging inlet and a charging cable connected to a charging station, and is detachable from a conversion adapter that connects the power lines of the charging inlet and the charging cable.
  • FIG. 1 is a schematic perspective view illustrating an appearance of a conversion adaptor included in a charging system according to a first embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of the charging system according to the first embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram showing a connection state of electrical power lines and the like during charging by the charging system.
  • FIG. 4 is a schematic diagram illustrating the EMC filter according to the first embodiment.
  • FIG. 5 is a schematic diagram showing a state in which the EMC filter is attached to the second charging connector.
  • FIG. 6 is a schematic diagram showing a state in which the EMC filter according to the second embodiment is attached to a charging inlet of a vehicle.
  • An electric vehicle is provided with an EMC filter that is connected to a charging station and suppresses common mode noise generated when charging.
  • a conversion adapter is used to convert the interface.
  • an EMC filter is designed for an electric vehicle assuming that the vehicle will be connected to a charging station of the same charging method.
  • the impedance component seen from the charging inlet of the electric vehicle toward the charging station changes compared to when the conversion adapter is not used, which causes a problem that the common mode noise may not be sufficiently suppressed.
  • one of the objectives is to provide an EMC filter that can improve convenience when charging using a conversion adapter.
  • the above-described EMC filter can improve convenience when charging using a conversion adapter.
  • the EMC filter according to the present disclosure includes: (1) An EMC filter that suppresses common mode noise generated in a power line.
  • the filter is connected between a charging inlet of a vehicle and a charging cable connected to a charging station, and is detachable from a conversion adapter that connects the power line of the charging inlet and the power line of the charging cable.
  • the EMC (Electromagnetic Compatibility) filter can suppress common mode noise generated in the power line. This makes it possible to suppress erroneous detection and malfunction of the thermistor even when charging using the conversion adapter.
  • the EMC filter since the EMC filter is removable, the EMC filter to be attached can be easily changed according to the common mode noise that changes due to changes in vehicle model, etc. Therefore, such an EMC filter can improve convenience when charging using the conversion adapter.
  • the EMC filter may include a first connector and a second connector that are connected to the power line of the conversion adapter, a first power line that is connected to the first connector and the second connector, a second power line that is connected to the first connector and the second connector, and a third power line that is connected to the first connector and the second connector.
  • the third power line may be connected to a ground line. In this way, earthing can be achieved by the third power line that is connected to the ground line, allowing for safer charging.
  • the first power line may be connected to the positive power line.
  • the second power line may be connected to the negative power line.
  • the conversion adapter may include a housing.
  • the EMC filter may be disposed within the housing. In this way, since the EMC filter is disposed within the housing, the EMC filter can be protected by the housing. Therefore, it is possible to ensure stable use over a longer period of time.
  • the EMC filter may include a common choke coil arranged to surround a part of the first power line and a part of the second power line, a first capacitor connected to the first power line and the third power line, and a second capacitor connected to the second power line and the third power line. In this way, charging can be performed more safely using the capacitors and the common choke coil.
  • the charging system includes a vehicle, a charging stand, a conversion adapter connected between the vehicle and the charging stand and connecting the vehicle's power line to the charging stand's power line, and an EMC filter that is detachable from at least one of the conversion adapter and the vehicle and suppresses common mode noise generated in the power line.
  • FIG. 1 is a schematic perspective view showing the appearance of a conversion adaptor equipped with an EMC filter according to the first embodiment of the present disclosure.
  • Fig. 2 is a schematic diagram of a charging system including the conversion adaptor shown in Fig. 1.
  • Fig. 3 is a schematic diagram showing a connection state of electrical power lines and the like during charging by the charging system.
  • Fig. 4 is a schematic diagram showing an EMC filter according to the first embodiment.
  • the charging system 10a including the conversion adapter 11a equipped with the EMC filter 59a in the first embodiment is a charging system that charges an electric vehicle, in this embodiment, an electric vehicle 12a.
  • the charging in this disclosure is DC (direct current) charging.
  • the charging system 10a includes the conversion adapter 11a, a charging stand 14a to which a charging cable 13a is connected, and an EMC filter 59a attached to the conversion adapter 11a.
  • the tip of the charging cable 13a connected to the charging stand 14a corresponding to a second charging method different from the first charging method described later is provided with a charging connector 15a for the charging cable with a handle. Note that when the charging method on the charging stand 14a side is different from the charging method on the electric vehicle 12a side, the conversion adapter 11a converts the charging method so that one charging method matches the other charging method.
  • the charging cable 13a includes multiple electric lines. Specifically, the charging cable 13a includes electric lines such as a positive power line 21a, a negative power line 22a, a ground line 23a for earthing, a first communication line 24a, a second communication line 25a, a first signal line 26a, a second signal line 27a, a third signal line 28a, and a fourth signal line 29a.
  • electric lines such as a positive power line 21a, a negative power line 22a, a ground line 23a for earthing, a first communication line 24a, a second communication line 25a, a first signal line 26a, a second signal line 27a, a third signal line 28a, and a fourth signal line 29a.
  • the electric vehicle 12a includes a vehicle charging inlet 16a that is compatible with the first charging method and serves as an interface for charging.
  • the charging system 10a includes the charging inlet 16a of the electric vehicle 12a.
  • the charging inlet 16a is provided with a charging socket 17a for vehicle charging, which is an insertion port for the charging connector 15a.
  • the charging connector 15a is connected to this charging socket 17a to charge the electric vehicle 12a.
  • the charging inlet 16a is provided with multiple electric lines corresponding to the charging cable 13a.
  • the charging inlet 16a includes electric lines such as a positive power line 31a, a negative power line 32a, a ground line 33a for earthing, a first communication line 34a, a second communication line 35a, a first signal line 36a, and a second signal line 37a.
  • the charging inlet 16a also includes a voltmeter 38a and a switch 39a provided on the second signal line 37a.
  • the charging inlet 16a on the electric vehicle 12a side is equipped with thermistors 18a and 18b that detect the temperature during charging, and an EMC filter 19a (second EMC filter) that suppresses common mode noise generated in the power line when the charging socket 17a and charging connector 15a are connected during charging. If the temperature detected by thermistors 18a and 18b is higher than a predetermined temperature, it is determined that the charging state is abnormal and charging is stopped.
  • the element values of the EMC filter 19a are designed so that it can sufficiently suppress common mode noise when it is connected to a charging stand that uses the same charging method as the charging method on the electric vehicle 12a side.
  • the charging cable 13a and charging inlet 16a comply with the same standard, charging is possible by simply connecting the charging connector 15a directly to the charging socket 17a.
  • the charging stand 14a, charging cable 13a, charging connector 15a, and charging socket 17a comply with different standards, charging cannot be achieved by simply connecting the charging connector 15a to the charging socket 17a.
  • the conversion adapter 11a is used.
  • the opening 54a and the arrangement of the power lines exposed in the opening 54a comply with the same standards as the charging stand 14a, the charging cable 13a, and the charging connector 15a.
  • the second charging connector 52a can be connected to the charging socket 17a.
  • the shape and arrangement of the protrusions 55a that are inserted into the charging socket 17a conform to the same standards as the charging socket 17a.
  • the conversion cable 53a is provided with a plurality of electric lines corresponding to the charging cable 13a.
  • the conversion cable 53a includes electric lines such as a positive power line 41a, a negative power line 42a, a ground line 43a for earthing, a first communication line 44a, a second communication line 45a, a first signal line 46a, a second signal line 47a, a third signal line 48a, and a fourth signal line 49a.
  • the conversion cable 53a also includes a resistor 56a arranged between the ground line 43a and the first signal line 46a, a resistor 57a arranged in the second signal line 47a, and a resistor 58a arranged between the second signal line 47a and the fourth signal line 49a.
  • the conversion adaptor 11a is equipped with an EMC filter 59a (first EMC filter) that suppresses common mode noise generated in the power lines, specifically, the positive power line 41a and the negative power line 42a.
  • the EMC filter 59a is detachably attached to the housing 20a.
  • the EMC filter 59a is provided in the second charging connector 52a.
  • the conversion adaptor 11b and the conversion adaptor 11c are also similarly provided with an EMC filter 59b (first EMC filter) and an EMC filter 59c (first EMC filter).
  • the EMC filter 59a includes a first connector 61a, a second connector 62a, a common choke coil 63a, a first capacitor 64a, a second capacitor 65a, a first power line 71a, a second power line 72a, and a third power line 73a.
  • the first power line 71a is connected to the first connector 61a and the second connector 62a.
  • the second power line 72a is connected to the first connector 61a and the second connector 62a.
  • the third power line 73a is connected to the first connector 61a and the second connector 62a.
  • the first power line 71a, the second power line 72a, and the third power line 73a are each disposed between the first connector 61a and the second connector 62a.
  • first connector 61a and the second connector 62a are provided at both ends of the first power line 71a, the second power line 72a, and the third power line 73a, respectively.
  • the first connector 61a and the second connector 62a are connection terminals of the EMC filter 59a, and are attached to the second charging connector 52a using the first connector 61a and the second connector 62a.
  • the common choke coil 63a is arranged to surround a portion of the first power line 71a and the second power line 72a.
  • the first capacitor 64a is connected to the first power line 71a and the third power line 73a.
  • the second capacitor 65a is connected to the second power line 72a and the third power line 73a.
  • FIG. 5 is a schematic diagram showing the EMC filter 59a attached to the second charging connector 52a.
  • the first connector 61a and the second connector 62a are connected to the first internal connector 66a and the second internal connector 67a provided on the second charging connector 52a side, respectively.
  • the first power line 71a is connected to the positive power line 41a
  • the second power line 72a is connected to the negative power line 42a
  • the third power line 73a is connected to the ground line 43a.
  • Charging is performed using the conversion adapter 11a equipped with such an EMC filter 59a. Specifically, the first charging connector 51a of the conversion adapter 11a is connected to the charging connector 15a of the charging cable 13a, and the second charging connector 52a of the conversion adapter 11a is connected to the charging socket 17a of the charging inlet 16a. Charging is performed in this state.
  • the EMC filter 59a can suppress common mode noise generated in the power line. As a result, even when charging using the conversion adapter 11a, false detection and malfunction of the thermistors 18a and 18b can be suppressed. In this case, since the EMC filter 59a is detachable, the EMC filter 59a to be attached can be easily changed according to the common mode noise that changes due to changes in the vehicle model, etc. Therefore, such an EMC filter 59a can improve convenience when charging using the conversion adapter 11a.
  • the EMC filter 59a can suppress common mode noise.
  • the EMC filter 59a is detachably attached to the conversion adapter 11a, the EMC filter 59a to be attached can be easily changed depending on the common mode noise generated. Therefore, convenience during charging using the conversion adapter 11a can be improved.
  • the EMC filter 59a includes a first connector 61a and a second connector 62a that are connected to the power lines of the conversion adapter 11a, a first power line 71a that is connected to the first connector 61a and the second connector 62a, a second power line 72a that is connected to the first connector 61a and the second connector 62a, and a third power line 73a that is connected to the first connector 61a and the second connector 62a.
  • the third power line 73a is connected to the ground line.
  • earthing can be achieved by the third power line 73a that is connected to the ground line, allowing for safer charging.
  • the first power line 71a is connected to the positive power line 41a.
  • the second power line 72a is connected to the negative power line 42a. This reliably suppresses common mode noise that occurs in the positive power line 41a and the negative power line 42a, and prevents erroneous detection of thermistors 18a and 18b. This allows for more reliable charging.
  • the conversion adapter 11a includes a housing 20a.
  • the EMC filter 59a is disposed within the housing 20a. As the EMC filter 59a is disposed within the housing 20a, the EMC filter 59a can be protected by the housing 20a. This ensures stable use over a longer period of time.
  • the EMC filter 59a includes a common choke coil 63a arranged to surround a portion of the first power line 71a and a portion of the second power line 72a, a first capacitor 64a connected to the first power line 71a and the third power line 73a, and a second capacitor 65a connected to the second power line 72a and the third power line 73a. Therefore, charging can be performed more safely using the capacitors and the common choke coil.
  • the EMC filter is disposed inside the housing, but this is not limiting, and the EMC filter may be disposed outside the housing.
  • FIG. 6 is a schematic diagram showing an EMC filter in embodiment 2 attached to a charging inlet of a vehicle.
  • the EMC filter in embodiment 2 basically has a similar configuration to embodiment 1 and achieves similar effects.
  • the EMC filter in embodiment 2 differs from embodiment 1 in that it is detachably provided in the inlet of the vehicle.
  • EMC filter 59d (second EMC filter) in embodiment 2 is detachably provided to charging inlet 16a of electric vehicle 12a.
  • EMC filter 59d includes a first connector 61d, a second connector 62d, a common choke coil 63d, a first capacitor 64d, a second capacitor 65d, a first power line 71d, a second power line 72d, and a third power line 73d.
  • the configurations of the first connector 61d, the second connector 62d, the common choke coil 63d, the first capacitor 64d, the second capacitor 65d, the first power line 71d, the second power line 72d, and the third power line 73d are similar to those of the first connector 61a, the second connector 62a, the common choke coil 63a, the first capacitor 64a, the second capacitor 65a, the first power line 71a, the second power line 72a, and the third power line 73a, respectively, and therefore their description will be omitted.
  • the first connector 61d and the second connector 62d are connection terminals of the EMC filter 59d, and are attached to the charging inlet 16a of the electric vehicle 12a using the first connector 61d and the second connector 62d.
  • the first connector 61d and the second connector 62d are connected to the first internal connector 66d and the second internal connector 67d, respectively, provided on the charging inlet 16a side. This connects the first power line 71d to the positive power line 31a, the second power line 72d to the negative power line 32a, and the third power line 73d to the ground line 43a.
  • Charging is performed using the charging inlet 16a equipped with such an EMC filter 59d. Specifically, the first charging connector 51a of the conversion adaptor 11a is connected to the charging connector 15a of the charging cable 13a, and the second charging connector 52a of the conversion adaptor 11a is connected to the charging socket 17a of the charging inlet 16a. Charging is performed in this state.
  • the charging system 10d including the EMC filter 59d can suppress common mode noise even when the conversion adapter 11a is used.
  • the EMC filter 59d is detachably provided on the charging inlet 16a of the electric vehicle 12a, the EMC filter 59d to be attached can be easily changed depending on the common mode noise generated. Therefore, convenience during charging using the conversion adapter 11a can be improved.
  • the EMC filter is provided so as to be detachable from at least one of the conversion adapter and the vehicle's charging inlet. This allows for more efficient charging.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

This EMC filter inhibits a common-mode noise generated in a power line. The EMC filter is to be coupled between a charging inlet of a vehicle and a charging cable connected to a charging station, and is capable of being attached to and detached from a conversion adapter which connects a power line of the charging inlet and a power line of the charging cable.

Description

ＥＭＣフィルタおよび充電システムEMC Filters and Charging Systems

　本開示は、ＥＭＣフィルタおよび充電システムに関するものである。 This disclosure relates to EMC filters and charging systems.

　電気自動車等の電気車両については、充電に際し、移動先に設置された充電スタンドを利用する場合がある。電気車両が準拠する規格と異なる規格の充電スタンドである場合、変換用のアダプタが用いられる（例えば、特許文献１、特許文献２および特許文献３参照）。 For electric vehicles such as electric cars, charging stations installed at the destination may be used for charging. If the charging station has a different standard from the standard that the electric vehicle complies with, a conversion adapter is used (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

特開２０１７－２２９２３０号公報JP 2017-229230 A 特開２０１７－７９５４２号公報JP 2017-79542 A 国際公開第２０１２／１１１０８１号International Publication No. 2012/111081

　本開示に係るＥＭＣフィルタは、電力線に生じるコモンモードノイズを抑制するＥＭＣフィルタであって、車両の充電インレットと充電スタンドに接続される充電ケーブルとの間に連結され、充電インレットの電力線と充電ケーブルの電力線とを接続する変換アダプタに着脱可能である。 The EMC filter disclosed herein is an EMC filter that suppresses common mode noise generated in power lines, and is connected between a vehicle's charging inlet and a charging cable connected to a charging station, and is detachable from a conversion adapter that connects the power lines of the charging inlet and the charging cable.

図１は、本開示の実施の形態１における充電システムに含まれる変換アダプタの外観を示す概略斜視図である。FIG. 1 is a schematic perspective view illustrating an appearance of a conversion adaptor included in a charging system according to a first embodiment of the present disclosure. 図２は、本開示の実施の形態１における充電システムの概略図である。FIG. 2 is a schematic diagram of the charging system according to the first embodiment of the present disclosure. 図３は、充電システムの充電時における電気的な電力線等の接続状況を示す模式図である。FIG. 3 is a schematic diagram showing a connection state of electrical power lines and the like during charging by the charging system. 図４は、実施の形態１におけるＥＭＣフィルタを概略的に示す模式図である。FIG. 4 is a schematic diagram illustrating the EMC filter according to the first embodiment. 図５は、ＥＭＣフィルタを第２の充電コネクタに装着した状態を示す概略図である。FIG. 5 is a schematic diagram showing a state in which the EMC filter is attached to the second charging connector. 図６は、実施の形態２におけるＥＭＣフィルタを車両の充電インレットに装着した状態を示す概略図である。FIG. 6 is a schematic diagram showing a state in which the EMC filter according to the second embodiment is attached to a charging inlet of a vehicle.

　［本開示が解決しようとする課題］
　電気車両には充電スタンドに接続され、充電を行う場合に発生するコモンモードノイズを抑制するＥＭＣフィルタが設けられている。上述のように、車両と充電スタンドとで充電方式が異なる場合には、そのインターフェースを変換する変換アダプタが用いられる。通常、電気車両には同じ充電方式の充電スタンドに接続される場合を想定してＥＭＣフィルタが設計されており、変換アダプタを介して異なる充電方式の充電スタンドと接続される場合、変換アダプタを用いない場合と比べて電気車両の充電インレットから充電スタンド側を見たインピーダンス成分が変わるため、十分にコモンモードノイズを抑制できない場合があるという課題があった。 [Problem to be solved by this disclosure]
An electric vehicle is provided with an EMC filter that is connected to a charging station and suppresses common mode noise generated when charging. As described above, when the charging methods differ between the vehicle and the charging station, a conversion adapter is used to convert the interface. Normally, an EMC filter is designed for an electric vehicle assuming that the vehicle will be connected to a charging station of the same charging method. When the electric vehicle is connected to a charging station of a different charging method via a conversion adapter, the impedance component seen from the charging inlet of the electric vehicle toward the charging station changes compared to when the conversion adapter is not used, which causes a problem that the common mode noise may not be sufficiently suppressed.

　ここで、コモンモードノイズを抑制するＥＭＣフィルタを変換アダプタに固定することが考えられるが、コモンモードノイズについては、車種や規格、電池の容量等に応じて発生するノイズが異なる。そうすると、車種等が変更した場合に変換アダプタを流用することができない。よって、車種等に応じたＥＭＣフィルタを備える変換アダプタを多数取り揃える必要が生じ、利便性の向上を図ることができない。変換アダプタを用いた充電時における利便性の向上を図ることが求められる。 In this case, it is conceivable to attach an EMC filter that suppresses common mode noise to the conversion adapter, but the type of common mode noise that occurs varies depending on the vehicle model, specifications, battery capacity, etc. This means that the conversion adapter cannot be reused when the vehicle model, etc. is changed. This creates a need to stock a large number of conversion adapters equipped with EMC filters according to the vehicle model, etc., which makes it difficult to improve convenience. There is a demand for improving convenience when charging using a conversion adapter.

　そこで、変換アダプタを用いた充電時における利便性の向上を図ることができるＥＭＣフィルタを提供することを目的の１つとする。 Therefore, one of the objectives is to provide an EMC filter that can improve convenience when charging using a conversion adapter.

　［本開示の効果］
　上記ＥＭＣフィルタによると、変換アダプタを用いた充電時における利便性の向上を図ることができる。 [Effects of the present disclosure]
The above-described EMC filter can improve convenience when charging using a conversion adapter.

　［本開示の実施形態の説明］
　最初に本開示の実施態様を列記して説明する。本開示に係るＥＭＣフィルタは、
　（１）電力線に生じるコモンモードノイズを抑制するＥＭＣフィルタであって、車両の充電インレットと充電スタンドに接続される充電ケーブルとの間に連結され、充電インレットの電力線と充電ケーブルの電力線とを接続する変換アダプタに着脱可能である。 [Description of the embodiments of the present disclosure]
First, the embodiments of the present disclosure will be listed and described. The EMC filter according to the present disclosure includes:
(1) An EMC filter that suppresses common mode noise generated in a power line. The filter is connected between a charging inlet of a vehicle and a charging cable connected to a charging station, and is detachable from a conversion adapter that connects the power line of the charging inlet and the power line of the charging cable.

　このようなＥＭＣフィルタが装着された変換アダプタは、例えば、車両の充電インレットと充電スタンドに接続される充電ケーブルとの間に連結された場合でも、ＥＭＣ（Ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ　Ｃｏｍｐａｔｉｂｉｌｉｔｙ）フィルタにより、電力線に生じるコモンモードノイズを抑制することができる。そうすると、変換アダプタを用いた充電時においても、サーミスタの誤検知や誤動作を抑制することができる。この場合、ＥＭＣフィルタは、着脱可能に設けられているため、車種の変更等により変化するコモンモードノイズに応じて、装着するＥＭＣフィルタを容易に変更することができる。したがって、このようなＥＭＣフィルタによると、変換アダプタを用いた充電時における利便性の向上を図ることができる。 Even when a conversion adapter equipped with such an EMC filter is connected between, for example, a vehicle's charging inlet and a charging cable connected to a charging station, the EMC (Electromagnetic Compatibility) filter can suppress common mode noise generated in the power line. This makes it possible to suppress erroneous detection and malfunction of the thermistor even when charging using the conversion adapter. In this case, since the EMC filter is removable, the EMC filter to be attached can be easily changed according to the common mode noise that changes due to changes in vehicle model, etc. Therefore, such an EMC filter can improve convenience when charging using the conversion adapter.

　（２）上記（１）において、ＥＭＣフィルタは、変換アダプタの電力線と接続される第１コネクタおよび第２コネクタと、第１コネクタおよび第２コネクタと接続される第１電力線と、第１コネクタおよび第２コネクタと接続される第２電力線と、第１コネクタおよび第２コネクタと接続される第３電力線と、を備えてもよい。第３電力線は、グラウンド線と接続されてもよい。このようにすることにより、グラウンド線に接続される第３電力線によってアース（接地）をとることができ、より安全に充電することができる。 (2) In (1) above, the EMC filter may include a first connector and a second connector that are connected to the power line of the conversion adapter, a first power line that is connected to the first connector and the second connector, a second power line that is connected to the first connector and the second connector, and a third power line that is connected to the first connector and the second connector. The third power line may be connected to a ground line. In this way, earthing can be achieved by the third power line that is connected to the ground line, allowing for safer charging.

　（３）上記（２）において、第１電力線は、プラス側電力線と接続されてもよい。第２電力線は、マイナス側電力線と接続されてもよい。このようにすることにより、プラス側電力線とマイナス側電力線とに生じるコモンモードノイズを確実に抑制して、サーミスタの誤検知等を防止することができる。したがって、より確実に充電することができる。 (3) In the above (2), the first power line may be connected to the positive power line. The second power line may be connected to the negative power line. In this way, common mode noise occurring in the positive and negative power lines can be reliably suppressed, and erroneous detection of the thermistor, etc. can be prevented. Therefore, charging can be performed more reliably.

　（４）上記（１）から（３）のいずれか一つにおいて、変換アダプタは、筐体を含んでもよい。ＥＭＣフィルタは、筐体内に配置されてもよい。このようにすることにより、筐体内にＥＭＣフィルタが配置されるため、ＥＭＣフィルタを筐体によって保護することができる。したがって、より長期的に安定した使用を確保することができる。 (4) In any one of (1) to (3) above, the conversion adapter may include a housing. The EMC filter may be disposed within the housing. In this way, since the EMC filter is disposed within the housing, the EMC filter can be protected by the housing. Therefore, it is possible to ensure stable use over a longer period of time.

　（５）上記（２）または（３）において、ＥＭＣフィルタは、第１電力線の一部および第２電力線の一部を取り囲むように配置されるコモンチョークコイルと、第１電力線および第３電力線と接続される第１コンデンサと、第２電力線および第３電力線と接続される第２コンデンサと、を含んでもよい。このようにすることにより、コンデンサおよびコモンチョークコイルを利用して、より安全に充電することができる。 (5) In the above (2) or (3), the EMC filter may include a common choke coil arranged to surround a part of the first power line and a part of the second power line, a first capacitor connected to the first power line and the third power line, and a second capacitor connected to the second power line and the third power line. In this way, charging can be performed more safely using the capacitors and the common choke coil.

　（６）本開示に係る充電システムは、車両と、充電スタンドと、車両と充電スタンドとの間に連結され、車両の電力線と充電スタンドの電力線とを接続する変換アダプタと、変換アダプタおよび車両のうちの少なくともいずれか一つに着脱可能であり、電力線に生じるコモンモードノイズを抑制するＥＭＣフィルタと、を備える。 (6) The charging system according to the present disclosure includes a vehicle, a charging stand, a conversion adapter connected between the vehicle and the charging stand and connecting the vehicle's power line to the charging stand's power line, and an EMC filter that is detachable from at least one of the conversion adapter and the vehicle and suppresses common mode noise generated in the power line.

　このような充電システムによると、変換アダプタを用いた場合でも、ＥＭＣフィルタによりコモンモードノイズを抑制することができる。この場合、ＥＭＣフィルタは、変換アダプタおよび車両のうちの少なくともいずれか一つに着脱可能に設けられているため、発生するコモンモードノイズに応じて、装着するＥＭＣフィルタを容易に変更することができる。したがって、変換アダプタを用いた充電時における利便性の向上を図ることができる。 With this type of charging system, common mode noise can be suppressed by the EMC filter even when a conversion adapter is used. In this case, since the EMC filter is detachably provided on at least one of the conversion adapter and the vehicle, the EMC filter to be attached can be easily changed depending on the common mode noise generated. This improves convenience when charging using a conversion adapter.

　［本開示の実施形態の詳細］
　次に、本開示のＥＭＣフィルタおよび充電システムの一実施形態を、図面を参照しつつ説明する。以下の図面において同一または相当する部分には同一の参照符号を付しその説明は繰り返さない。 [Details of the embodiment of the present disclosure]
Next, an embodiment of an EMC filter and a charging system according to the present disclosure will be described with reference to the drawings. In the following drawings, the same or corresponding parts are designated by the same reference characters, and the description thereof will not be repeated.

　（実施の形態１）
　本開示の実施の形態１におけるＥＭＣフィルタおよび充電システムの構成について説明する。図１は、本開示の実施の形態１におけるＥＭＣフィルタを装着した変換アダプタの外観を示す概略斜視図である。図２は、図１に示す変換アダプタを含む充電システムの概略図である。図３は、充電システムの充電時における電気的な電力線等の接続状況を示す模式図である。図４は、実施の形態１におけるＥＭＣフィルタを概略的に示す模式図である。 (Embodiment 1)
The configuration of an EMC filter and a charging system according to a first embodiment of the present disclosure will be described. Fig. 1 is a schematic perspective view showing the appearance of a conversion adaptor equipped with an EMC filter according to the first embodiment of the present disclosure. Fig. 2 is a schematic diagram of a charging system including the conversion adaptor shown in Fig. 1. Fig. 3 is a schematic diagram showing a connection state of electrical power lines and the like during charging by the charging system. Fig. 4 is a schematic diagram showing an EMC filter according to the first embodiment.

　図１、図２、図３および図４を参照して、実施の形態１におけるＥＭＣフィルタ５９ａを装着した変換アダプタ１１ａを含む充電システム１０ａは、電気車両、本実施形態においては、電気自動車１２ａに対して充電を行う充電システムである。本開示における充電は、ＤＣ（直流）の充電である。充電システム１０ａは、上記変換アダプタ１１ａと、充電ケーブル１３ａが接続される充電スタンド１４ａと、変換アダプタ１１ａに装着されたＥＭＣフィルタ５９ａと、を含む。後述する第１の充電方式と異なる第２の充電方式に対応した充電スタンド１４ａに接続される充電ケーブル１３ａの先端には、取っ手が設けられた充電ケーブル用の充電コネクタ１５ａが設けられている。なお、充電スタンド１４ａ側における充電方式と、電気自動車１２ａ側における充電方式とは異なる場合には、いずれか一方の充電方式を他方の充電方式に合わせるよう、変換アダプタ１１ａは充電方式を変換する。 1, 2, 3, and 4, the charging system 10a including the conversion adapter 11a equipped with the EMC filter 59a in the first embodiment is a charging system that charges an electric vehicle, in this embodiment, an electric vehicle 12a. The charging in this disclosure is DC (direct current) charging. The charging system 10a includes the conversion adapter 11a, a charging stand 14a to which a charging cable 13a is connected, and an EMC filter 59a attached to the conversion adapter 11a. The tip of the charging cable 13a connected to the charging stand 14a corresponding to a second charging method different from the first charging method described later is provided with a charging connector 15a for the charging cable with a handle. Note that when the charging method on the charging stand 14a side is different from the charging method on the electric vehicle 12a side, the conversion adapter 11a converts the charging method so that one charging method matches the other charging method.

　充電ケーブル１３ａは、複数の電気線を含む。具体的には、充電ケーブル１３ａは、プラス側電力線２１ａ、マイナス側電力線２２ａ、アースをとるグラウンド線２３ａ、第１通信線２４ａ、第２通信線２５ａ、第１信号線２６ａ、第２信号線２７ａ、第３信号線２８ａおよび第４信号線２９ａといった電気線を含む。 The charging cable 13a includes multiple electric lines. Specifically, the charging cable 13a includes electric lines such as a positive power line 21a, a negative power line 22a, a ground line 23a for earthing, a first communication line 24a, a second communication line 25a, a first signal line 26a, a second signal line 27a, a third signal line 28a, and a fourth signal line 29a.

　電気自動車１２ａは、充電用のインターフェースとなる第１の充電方式に対応した車両の充電インレット１６ａを含む。上記充電システム１０ａには、電気自動車１２ａの充電インレット１６ａが含まれる。充電インレット１６ａには、充電コネクタ１５ａの差し込み口である車両充電用の充電ソケット１７ａが設けられている。この充電ソケット１７ａに充電コネクタ１５ａを接続して電気自動車１２ａに充電を行う。 The electric vehicle 12a includes a vehicle charging inlet 16a that is compatible with the first charging method and serves as an interface for charging. The charging system 10a includes the charging inlet 16a of the electric vehicle 12a. The charging inlet 16a is provided with a charging socket 17a for vehicle charging, which is an insertion port for the charging connector 15a. The charging connector 15a is connected to this charging socket 17a to charge the electric vehicle 12a.

　充電インレット１６ａには、充電ケーブル１３ａに対応して、複数の電気線が設けられている。充電インレット１６ａは、プラス側電力線３１ａ、マイナス側電力線３２ａ、アースをとるグラウンド線３３ａ、第１通信線３４ａ、第２通信線３５ａ、第１信号線３６ａおよび第２信号線３７ａといった電気線を含む。また、充電インレット１６ａは、第２信号線３７ａに設けられた電圧計３８ａと、スイッチ３９ａと、を含む。 The charging inlet 16a is provided with multiple electric lines corresponding to the charging cable 13a. The charging inlet 16a includes electric lines such as a positive power line 31a, a negative power line 32a, a ground line 33a for earthing, a first communication line 34a, a second communication line 35a, a first signal line 36a, and a second signal line 37a. The charging inlet 16a also includes a voltmeter 38a and a switch 39a provided on the second signal line 37a.

　なお、電気自動車１２ａ側の充電インレット１６ａには、充電時において温度を検知するサーミスタ１８ａ，サーミスタ１８ｂおよび充電時における充電ソケット１７ａと充電コネクタ１５ａとの接続環境下において、電力線に生じるコモンモードノイズを抑制するＥＭＣフィルタ１９ａ（第２のＥＭＣフィルタ）が搭載されている。サーミスタ１８ａ、サーミスタ１８ｂにより検知した温度が所定の温度よりも高いことを検知すれば、充電状態が異常となっていると判断し、充電を中止する。また、ＥＭＣフィルタ１９ａは、電気自動車１２ａ側の充電方式と同じ充電方式の充電スタンドに接続される場合に十分にコモンモードノイズを抑制できるようその素子値等が設計されている。 The charging inlet 16a on the electric vehicle 12a side is equipped with thermistors 18a and 18b that detect the temperature during charging, and an EMC filter 19a (second EMC filter) that suppresses common mode noise generated in the power line when the charging socket 17a and charging connector 15a are connected during charging. If the temperature detected by thermistors 18a and 18b is higher than a predetermined temperature, it is determined that the charging state is abnormal and charging is stopped. The element values of the EMC filter 19a are designed so that it can sufficiently suppress common mode noise when it is connected to a charging stand that uses the same charging method as the charging method on the electric vehicle 12a side.

　ここで、充電ケーブル１３ａと充電インレット１６ａとが同一の規格に準拠している場合には、そのまま直接、充電ソケット１７ａに充電コネクタ１５ａを接続して、充電が可能である。しかし、充電スタンド１４ａ、充電ケーブル１３ａおよび充電コネクタ１５ａと充電ソケット１７ａとが異なる規格に準拠している場合には、そのまま充電コネクタ１５ａを充電ソケット１７ａに接続して充電することはできない。この場合、上記変換アダプタ１１ａが用いられる。 Here, if the charging cable 13a and charging inlet 16a comply with the same standard, charging is possible by simply connecting the charging connector 15a directly to the charging socket 17a. However, if the charging stand 14a, charging cable 13a, charging connector 15a, and charging socket 17a comply with different standards, charging cannot be achieved by simply connecting the charging connector 15a to the charging socket 17a. In this case, the conversion adapter 11a is used.

　変換アダプタ１１ａは、筐体２０ａ、具体的には、第１の充電方式に対応した第１の充電コネクタ５１ａと、第２の充電方式に対応した第２の充電コネクタ５２ａと、変換ケーブル５３ａと、を含む。すなわち、本実施形態においては、変換アダプタ１１ａに含まれる筐体２０ａは、第１の充電コネクタ５１ａと、第２の充電コネクタ５２ａと、変換ケーブル５３ａと、を含む。第１の充電コネクタ５１ａと第２の充電コネクタ５２ａとは、変換ケーブル５３ａにより接続されている。変換ケーブル５３ａには、プラス側電力線等、複数の電気線が含まれる。第１の充電コネクタ５１ａは、充電コネクタ１５ａを接続可能である。すなわち、開口５４ａおよび開口５４ａ内に露出する電力線の配置等は、充電スタンド１４ａ、充電ケーブル１３ａおよび充電コネクタ１５ａの規格と同じ規格に準拠している。また、第２の充電コネクタ５２ａは、充電ソケット１７ａと接続可能である。すなわち、充電ソケット１７ａへ差し込む突起５５ａの形状や配置等は、充電ソケット１７ａの規格と同じ規格に準拠している。 The conversion adapter 11a includes a housing 20a, specifically, a first charging connector 51a corresponding to the first charging method, a second charging connector 52a corresponding to the second charging method, and a conversion cable 53a. That is, in this embodiment, the housing 20a included in the conversion adapter 11a includes the first charging connector 51a, the second charging connector 52a, and the conversion cable 53a. The first charging connector 51a and the second charging connector 52a are connected by the conversion cable 53a. The conversion cable 53a includes multiple electric lines, such as a positive power line. The first charging connector 51a can be connected to the charging connector 15a. That is, the opening 54a and the arrangement of the power lines exposed in the opening 54a comply with the same standards as the charging stand 14a, the charging cable 13a, and the charging connector 15a. In addition, the second charging connector 52a can be connected to the charging socket 17a. In other words, the shape and arrangement of the protrusions 55a that are inserted into the charging socket 17a conform to the same standards as the charging socket 17a.

　変換ケーブル５３ａには、充電ケーブル１３ａに対応して、複数の電気線が設けられている。変換ケーブル５３ａは、プラス側電力線４１ａ、マイナス側電力線４２ａ、アースをとるグラウンド線４３ａ、第１通信線４４ａ、第２通信線４５ａ、第１信号線４６ａ、第２信号線４７ａ、第３信号線４８ａおよび第４信号線４９ａといった電気線を含む。また、変換ケーブル５３ａは、グラウンド線４３ａと第１信号線４６ａとの間に配置される抵抗５６ａと、第２信号線４７ａ内に配置される抵抗５７ａと、第２信号線４７ａと第４信号線４９ａとの間に配置される抵抗５８ａと、を含む。 The conversion cable 53a is provided with a plurality of electric lines corresponding to the charging cable 13a. The conversion cable 53a includes electric lines such as a positive power line 41a, a negative power line 42a, a ground line 43a for earthing, a first communication line 44a, a second communication line 45a, a first signal line 46a, a second signal line 47a, a third signal line 48a, and a fourth signal line 49a. The conversion cable 53a also includes a resistor 56a arranged between the ground line 43a and the first signal line 46a, a resistor 57a arranged in the second signal line 47a, and a resistor 58a arranged between the second signal line 47a and the fourth signal line 49a.

　なお、電気自動車１２ａとは異なる他の規格に準拠する電気自動車１２ｂに対応する規格の変換アダプタ１１ｂ、さらに他の規格に準拠する電気自動車１２ｃに対応する規格の変換アダプタ１１ｃを用いることにより、充電スタンド１４ａから電気自動車１２ｂ、電気自動車１２ｃに充電可能な構成である。 In addition, by using a conversion adapter 11b with a standard compatible with electric vehicle 12b that complies with a different standard from electric vehicle 12a, and a conversion adapter 11c with a standard compatible with electric vehicle 12c that complies with yet another standard, it is possible to charge electric vehicle 12b and electric vehicle 12c from charging station 14a.

　ここで、変換アダプタ１１ａには、電力線、具体的には、プラス側電力線４１ａおよびマイナス側電力線４２ａに生じるコモンモードノイズを抑制するＥＭＣフィルタ５９ａ（第１のＥＭＣフィルタ）が装着されている。本実施形態においては、ＥＭＣフィルタ５９ａは、筐体２０ａに着脱可能に取り付けられている。具体的には、ＥＭＣフィルタ５９ａは、第２の充電コネクタ５２ａ内に設けられている。なお、変換アダプタ１１ｂ、変換アダプタ１１ｃについても同様に、ＥＭＣフィルタ５９ｂ（第１のＥＭＣフィルタ）、ＥＭＣフィルタ５９ｃ（第１のＥＭＣフィルタ）が設けられている。 Here, the conversion adaptor 11a is equipped with an EMC filter 59a (first EMC filter) that suppresses common mode noise generated in the power lines, specifically, the positive power line 41a and the negative power line 42a. In this embodiment, the EMC filter 59a is detachably attached to the housing 20a. Specifically, the EMC filter 59a is provided in the second charging connector 52a. Note that the conversion adaptor 11b and the conversion adaptor 11c are also similarly provided with an EMC filter 59b (first EMC filter) and an EMC filter 59c (first EMC filter).

　ＥＭＣフィルタ５９ａは、第１コネクタ６１ａと、第２コネクタ６２ａと、コモンチョークコイル６３ａと、第１コンデンサ６４ａと、第２コンデンサ６５ａと、第１電力線７１ａと、第２電力線７２ａと、第３電力線７３ａと、を含む。第１電力線７１ａは、第１コネクタ６１ａおよび第２コネクタ６２ａと接続される。第２電力線７２ａは、第１コネクタ６１ａおよび第２コネクタ６２ａと接続される。第３電力線７３ａは、第１コネクタ６１ａおよび第２コネクタ６２ａと接続される。第１電力線７１ａ、第２電力線７２ａおよび第３電力線７３ａはそれぞれ、第１コネクタ６１ａと第２コネクタ６２ａとの間に配置される。すなわち、第１コネクタ６１ａおよび第２コネクタ６２ａは、第１電力線７１ａ、第２電力線７２ａおよび第３電力線７３ａのそれぞれの両端に設けられる。第１コネクタ６１ａおよび第２コネクタ６２ａは、ＥＭＣフィルタ５９ａの接続端子であり、この第１コネクタ６１ａおよび第２コネクタ６２ａを利用して、第２の充電コネクタ５２ａに装着される。 The EMC filter 59a includes a first connector 61a, a second connector 62a, a common choke coil 63a, a first capacitor 64a, a second capacitor 65a, a first power line 71a, a second power line 72a, and a third power line 73a. The first power line 71a is connected to the first connector 61a and the second connector 62a. The second power line 72a is connected to the first connector 61a and the second connector 62a. The third power line 73a is connected to the first connector 61a and the second connector 62a. The first power line 71a, the second power line 72a, and the third power line 73a are each disposed between the first connector 61a and the second connector 62a. That is, the first connector 61a and the second connector 62a are provided at both ends of the first power line 71a, the second power line 72a, and the third power line 73a, respectively. The first connector 61a and the second connector 62a are connection terminals of the EMC filter 59a, and are attached to the second charging connector 52a using the first connector 61a and the second connector 62a.

　コモンチョークコイル６３ａは、第１電力線７１ａと第２電力線７２ａの一部を取り囲むように配置される。第１コンデンサ６４ａは、第１電力線７１ａおよび第３電力線７３ａと接続される。第２コンデンサ６５ａは、第２電力線７２ａおよび第３電力線７３ａと接続される。 The common choke coil 63a is arranged to surround a portion of the first power line 71a and the second power line 72a. The first capacitor 64a is connected to the first power line 71a and the third power line 73a. The second capacitor 65a is connected to the second power line 72a and the third power line 73a.

　図５は、ＥＭＣフィルタ５９ａを第２の充電コネクタ５２ａに装着した状態を示す概略図である。図５を併せて参照して、ＥＭＣフィルタ５９ａを第２の充電コネクタ５２ａに装着する際には、第１コネクタ６１ａおよび第２コネクタ６２ａが、第２の充電コネクタ５２ａ側に設けられた第１内部コネクタ６６ａ、第２内部コネクタ６７ａにそれぞれ接続される。そうすると、第１電力線７１ａとプラス側電力線４１ａとが接続され、第２電力線７２ａとマイナス側電力線４２ａとが接続され、第３電力線７３ａとグラウンド線４３ａとが接続される。 FIG. 5 is a schematic diagram showing the EMC filter 59a attached to the second charging connector 52a. Referring also to FIG. 5, when attaching the EMC filter 59a to the second charging connector 52a, the first connector 61a and the second connector 62a are connected to the first internal connector 66a and the second internal connector 67a provided on the second charging connector 52a side, respectively. Then, the first power line 71a is connected to the positive power line 41a, the second power line 72a is connected to the negative power line 42a, and the third power line 73a is connected to the ground line 43a.

　このようなＥＭＣフィルタ５９ａが装着された変換アダプタ１１ａを用いて充電する。具体的には、変換アダプタ１１ａの第１の充電コネクタ５１ａと、充電ケーブル１３ａの充電コネクタ１５ａとを接続し、変換アダプタ１１ａの第２の充電コネクタ５２ａと、充電インレット１６ａの充電ソケット１７ａとを接続する。この状態として充電を行う。 Charging is performed using the conversion adapter 11a equipped with such an EMC filter 59a. Specifically, the first charging connector 51a of the conversion adapter 11a is connected to the charging connector 15a of the charging cable 13a, and the second charging connector 52a of the conversion adapter 11a is connected to the charging socket 17a of the charging inlet 16a. Charging is performed in this state.

　このようなＥＭＣフィルタ５９ａが装着された変換アダプタ１１ａは、電気自動車１２ａの充電インレット１６ａと充電スタンド１４ａに接続される充電ケーブル１３ａとの間に連結された場合でも、ＥＭＣフィルタ５９ａにより、電力線に生じるコモンモードノイズを抑制することができる。そうすると、変換アダプタ１１ａを用いた充電時においても、サーミスタ１８ａ、サーミスタ１８ｂの誤検知や誤動作を抑制することができる。この場合、ＥＭＣフィルタ５９ａは、着脱可能に設けられているため、車種の変更等により変化するコモンモードノイズに応じて、装着するＥＭＣフィルタ５９ａを容易に変更することができる。したがって、このようなＥＭＣフィルタ５９ａによると、変換アダプタ１１ａを用いた充電時における利便性の向上を図ることができる。 Even when the conversion adapter 11a equipped with such an EMC filter 59a is connected between the charging inlet 16a of the electric vehicle 12a and the charging cable 13a connected to the charging stand 14a, the EMC filter 59a can suppress common mode noise generated in the power line. As a result, even when charging using the conversion adapter 11a, false detection and malfunction of the thermistors 18a and 18b can be suppressed. In this case, since the EMC filter 59a is detachable, the EMC filter 59a to be attached can be easily changed according to the common mode noise that changes due to changes in the vehicle model, etc. Therefore, such an EMC filter 59a can improve convenience when charging using the conversion adapter 11a.

　また、上記充電システム１０ａによると、変換アダプタ１１ａを用いた場合でも、ＥＭＣフィルタ５９ａによりコモンモードノイズを抑制することができる。この場合、ＥＭＣフィルタ５９ａは、変換アダプタ１１ａと着脱可能に設けられているため、発生するコモンモードノイズに応じて、装着するＥＭＣフィルタ５９ａを容易に変更することができる。したがって、変換アダプタ１１ａを用いた充電時における利便性の向上を図ることができる。 Furthermore, according to the charging system 10a, even when the conversion adapter 11a is used, the EMC filter 59a can suppress common mode noise. In this case, since the EMC filter 59a is detachably attached to the conversion adapter 11a, the EMC filter 59a to be attached can be easily changed depending on the common mode noise generated. Therefore, convenience during charging using the conversion adapter 11a can be improved.

　本実施形態においては、ＥＭＣフィルタ５９ａは、変換アダプタ１１ａの電力線と接続される第１コネクタ６１ａおよび第２コネクタ６２ａと、第１コネクタ６１ａおよび第２コネクタ６２ａと接続される第１電力線７１ａと、第１コネクタ６１ａおよび第２コネクタ６２ａと接続される第２電力線７２ａと、第１コネクタ６１ａおよび第２コネクタ６２ａと接続される第３電力線７３ａと、を備える。第３電力線７３ａは、グラウンド線と接続される。よって、グラウンド線に接続される第３電力線７３ａによってアース（接地）をとることができ、より安全に充電することができる。 In this embodiment, the EMC filter 59a includes a first connector 61a and a second connector 62a that are connected to the power lines of the conversion adapter 11a, a first power line 71a that is connected to the first connector 61a and the second connector 62a, a second power line 72a that is connected to the first connector 61a and the second connector 62a, and a third power line 73a that is connected to the first connector 61a and the second connector 62a. The third power line 73a is connected to the ground line. Thus, earthing can be achieved by the third power line 73a that is connected to the ground line, allowing for safer charging.

　本実施形態においては、第１電力線７１ａは、プラス側電力線４１ａと接続される。第２電力線７２ａは、マイナス側電力線４２ａと接続される。よって、プラス側電力線４１ａとマイナス側電力線４２ａとに生じるコモンモードノイズを確実に抑制して、サーミスタ１８ａ，サーミスタ１８ｂの誤検知等を防止することができる。したがって、より確実に充電することができる。 In this embodiment, the first power line 71a is connected to the positive power line 41a. The second power line 72a is connected to the negative power line 42a. This reliably suppresses common mode noise that occurs in the positive power line 41a and the negative power line 42a, and prevents erroneous detection of thermistors 18a and 18b. This allows for more reliable charging.

　本実施形態においては、変換アダプタ１１ａは、筐体２０ａを含む。ＥＭＣフィルタ５９ａは、筐体２０ａ内に配置される。よって、筐体２０ａ内にＥＭＣフィルタ５９ａが配置されるため、ＥＭＣフィルタ５９ａを筐体２０ａによって保護することができる。したがって、より長期的に安定した使用を確保することができる。 In this embodiment, the conversion adapter 11a includes a housing 20a. The EMC filter 59a is disposed within the housing 20a. As the EMC filter 59a is disposed within the housing 20a, the EMC filter 59a can be protected by the housing 20a. This ensures stable use over a longer period of time.

　本実施形態においては、ＥＭＣフィルタ５９ａは、第１電力線７１ａの一部および第２電力線７２ａの一部を取り囲むように配置されるコモンチョークコイル６３ａと、第１電力線７１ａおよび第３電力線７３ａと接続される第１コンデンサ６４ａと、第２電力線７２ａおよび第３電力線７３ａと接続される第２コンデンサ６５ａと、を含む。よって、コンデンサおよびコモンチョークコイルを利用して、より安全に充電することができる。 In this embodiment, the EMC filter 59a includes a common choke coil 63a arranged to surround a portion of the first power line 71a and a portion of the second power line 72a, a first capacitor 64a connected to the first power line 71a and the third power line 73a, and a second capacitor 65a connected to the second power line 72a and the third power line 73a. Therefore, charging can be performed more safely using the capacitors and the common choke coil.

　なお、上記の実施の形態において、ＥＭＣフィルタは、筐体内に配置することとしたが、これに限らず、ＥＭＣフィルタは、筐体の外部に配置することにしてもよい。 In the above embodiment, the EMC filter is disposed inside the housing, but this is not limiting, and the EMC filter may be disposed outside the housing.

　（実施の形態２）
　他の実施の形態である実施の形態２について説明する。図６は、実施の形態２におけるＥＭＣフィルタを車両の充電インレットに装着した状態を示す概略図である。実施の形態２におけるＥＭＣフィルタは、基本的に実施の形態１の場合と同様の構成を有し、同様の効果を奏する。しかし、実施の形態２のＥＭＣフィルタは、車両のインレットに着脱可能に設けられる点において、実施の形態１の場合とは異なっている。 (Embodiment 2)
Another embodiment, embodiment 2, will now be described. Fig. 6 is a schematic diagram showing an EMC filter in embodiment 2 attached to a charging inlet of a vehicle. The EMC filter in embodiment 2 basically has a similar configuration to embodiment 1 and achieves similar effects. However, the EMC filter in embodiment 2 differs from embodiment 1 in that it is detachably provided in the inlet of the vehicle.

　図６を参照して、実施の形態２におけるＥＭＣフィルタ５９ｄ（第２のＥＭＣフィルタ）は、電気自動車１２ａの充電インレット１６ａに着脱可能に設けられる。ＥＭＣフィルタ５９ｄは、第１コネクタ６１ｄと、第２コネクタ６２ｄと、コモンチョークコイル６３ｄと、第１コンデンサ６４ｄと、第２コンデンサ６５ｄと、第１電力線７１ｄと、第２電力線７２ｄと、第３電力線７３ｄと、を含む。第１コネクタ６１ｄ、第２コネクタ６２ｄ、コモンチョークコイル６３ｄ、第１コンデンサ６４ｄ、第２コンデンサ６５ｄ、第１電力線７１ｄ、第２電力線７２ｄおよび第３電力線７３ｄの構成はそれぞれ、第１コネクタ６１ａ、第２コネクタ６２ａ、コモンチョークコイル６３ａ、第１コンデンサ６４ａ、第２コンデンサ６５ａ、第１電力線７１ａ、第２電力線７２ａおよび第３電力線７３ａの構成と同様であるため、それらの説明を省略する。第１コネクタ６１ｄおよび第２コネクタ６２ｄは、ＥＭＣフィルタ５９ｄの接続端子であり、この第１コネクタ６１ｄおよび第２コネクタ６２ｄを利用して、電気自動車１２ａの充電インレット１６ａに装着される。 6, EMC filter 59d (second EMC filter) in embodiment 2 is detachably provided to charging inlet 16a of electric vehicle 12a. EMC filter 59d includes a first connector 61d, a second connector 62d, a common choke coil 63d, a first capacitor 64d, a second capacitor 65d, a first power line 71d, a second power line 72d, and a third power line 73d. The configurations of the first connector 61d, the second connector 62d, the common choke coil 63d, the first capacitor 64d, the second capacitor 65d, the first power line 71d, the second power line 72d, and the third power line 73d are similar to those of the first connector 61a, the second connector 62a, the common choke coil 63a, the first capacitor 64a, the second capacitor 65a, the first power line 71a, the second power line 72a, and the third power line 73a, respectively, and therefore their description will be omitted. The first connector 61d and the second connector 62d are connection terminals of the EMC filter 59d, and are attached to the charging inlet 16a of the electric vehicle 12a using the first connector 61d and the second connector 62d.

　ＥＭＣフィルタ５９ｄを充電インレット１６ａに装着する際には、第１コネクタ６１ｄおよび第２コネクタ６２ｄが、充電インレット１６ａ側に設けられた第１内部コネクタ６６ｄ、第２内部コネクタ６７ｄにそれぞれ接続される。そうすると、第１電力線７１ｄとプラス側電力線３１ａとが接続され、第２電力線７２ｄとマイナス側電力線３２ａとが接続され、第３電力線７３ｄとグラウンド線４３ａとが接続される。 When the EMC filter 59d is attached to the charging inlet 16a, the first connector 61d and the second connector 62d are connected to the first internal connector 66d and the second internal connector 67d, respectively, provided on the charging inlet 16a side. This connects the first power line 71d to the positive power line 31a, the second power line 72d to the negative power line 32a, and the third power line 73d to the ground line 43a.

　このようなＥＭＣフィルタ５９ｄが装着された充電インレット１６ａを用いて充電する。具体的には、変換アダプタ１１ａの第１の充電コネクタ５１ａと、充電ケーブル１３ａの充電コネクタ１５ａとを接続し、変換アダプタ１１ａの第２の充電コネクタ５２ａと、充電インレット１６ａの充電ソケット１７ａとを接続する。この状態として充電を行う。 Charging is performed using the charging inlet 16a equipped with such an EMC filter 59d. Specifically, the first charging connector 51a of the conversion adaptor 11a is connected to the charging connector 15a of the charging cable 13a, and the second charging connector 52a of the conversion adaptor 11a is connected to the charging socket 17a of the charging inlet 16a. Charging is performed in this state.

　上記ＥＭＣフィルタ５９ｄを含む充電システム１０ｄによると、変換アダプタ１１ａを用いた場合でも、ＥＭＣフィルタ５９ｄによりコモンモードノイズを抑制することができる。この場合、ＥＭＣフィルタ５９ｄは、電気自動車１２ａの充電インレット１６ａに着脱可能に設けられているため、発生するコモンモードノイズに応じて、装着するＥＭＣフィルタ５９ｄを容易に変更することができる。したがって、変換アダプタ１１ａを用いた充電時における利便性の向上を図ることができる。 The charging system 10d including the EMC filter 59d can suppress common mode noise even when the conversion adapter 11a is used. In this case, since the EMC filter 59d is detachably provided on the charging inlet 16a of the electric vehicle 12a, the EMC filter 59d to be attached can be easily changed depending on the common mode noise generated. Therefore, convenience during charging using the conversion adapter 11a can be improved.

　すなわち、実施の形態１と合わせて、ＥＭＣフィルタは、変換アダプタおよび車両の充電インレットのうちの少なくともいずれか一つと着脱可能に設けられている。このようにすることにより、より効率的に充電することができる。 In other words, in conjunction with the first embodiment, the EMC filter is provided so as to be detachable from at least one of the conversion adapter and the vehicle's charging inlet. This allows for more efficient charging.

　今回開示された実施の形態はすべての点で例示であって、どのような面からも制限的なものではないと理解されるべきである。本開示の範囲は上記した説明ではなく、請求の範囲によって規定され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 It should be understood that the embodiments disclosed herein are illustrative in all respects and are not limiting in any respect. The scope of the present disclosure is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims.

１０ａ，１０ｄ　充電システム
１１ａ，１１ｂ，１１ｃ　変換アダプタ
１２ａ，１２ｂ，１２ｃ　電気自動車
１３ａ　充電ケーブル
１４ａ　充電スタンド
１５ａ　充電コネクタ
１６ａ　充電インレット
１７ａ　充電ソケット
１８ａ，１８ｂ　サーミスタ
１９ａ，５９ｄ　ＥＭＣフィルタ（第２のＥＭＣフィルタ）
５９ａ，５９ｂ，５９ｃ　ＥＭＣフィルタ（第１のＥＭＣフィルタ）
２０ａ　筐体
２１ａ，３１ａ，４１ａ　プラス側電力線
２２ａ，３２ａ，４２ａ　マイナス側電力線
２３ａ，３３ａ，４３ａ　グラウンド線
２４ａ，３４ａ，４４ａ　第１通信線
２５ａ，３５ａ，４５ａ　第２通信線
２６ａ，３６ａ，４６ａ　第１信号線
２７ａ，３７ａ，４７ａ　第２信号線
２８ａ，４８ａ　第３信号線
２９ａ，４９ａ　第４信号線
３８ａ　電圧計
３９ａ　スイッチ
５１ａ　第１の充電コネクタ
５２ａ　第２の充電コネクタ
５３ａ　変換ケーブル
５４ａ　開口
５５ａ　突起
５６ａ，５７ａ，５８ａ　抵抗
６１ａ，６１ｄ　第１コネクタ
６２ａ，６２ｄ　第２コネクタ
６３ａ，６３ｄ　コモンチョークコイル
６４ａ，６４ｄ　第１コンデンサ
６５ａ，６５ｄ　第２コンデンサ
６６ａ，６６ｄ　第１内部コネクタ
６７ａ，６７ｄ　第２内部コネクタ
７１ａ，７１ｄ　第１電力線
７２ａ，７２ｄ　第２電力線
７３ａ，７３ｄ　第３電力線 10a, 10d Charging system 11a, 11b, 11c Conversion adapter 12a, 12b, 12c Electric vehicle 13a Charging cable 14a Charging stand 15a Charging connector 16a Charging inlet 17a Charging socket 18a, 18b Thermistor 19a, 59d EMC filter (second EMC filter)
59a, 59b, 59c EMC filter (first EMC filter)
20a Housing 21a, 31a, 41a Positive power line 22a, 32a, 42a Negative power line 23a, 33a, 43a Ground line 24a, 34a, 44a First communication line 25a, 35a, 45a Second communication line 26a, 36a, 46a First signal line 27a, 37a, 47a Second signal line 28a, 48a Third signal line 29a, 49a Fourth signal line 38a Voltmeter 39a Switch 51a First charging connector 52a Second charging connector 53a Conversion cable 54a Opening 55a Protrusions 56a, 57a, 58a Resistors 61a, 61d First connectors 62a, 62d Second connectors 63a, 63d Common choke coils 64a, 64d First capacitors 65a, 65d Second capacitor 66a, 66d First internal connector 67a, 67d Second internal connector 71a, 71d First power line 72a, 72d Second power line 73a, 73d Third power line

Claims (6)

　電力線に生じるコモンモードノイズを抑制するＥＭＣフィルタであって、
　車両の充電インレットと充電スタンドに接続される充電ケーブルとの間に連結され、前記充電インレットの電力線と前記充電ケーブルの電力線とを接続する変換アダプタに着脱可能である、ＥＭＣフィルタ。 An EMC filter for suppressing common mode noise occurring in a power line,
An EMC filter that is connected between a charging inlet of a vehicle and a charging cable connected to a charging station, and is detachable from a conversion adapter that connects a power line of the charging inlet and a power line of the charging cable. 　前記変換アダプタの電力線と接続される第１コネクタおよび第２コネクタと、
　前記第１コネクタおよび前記第２コネクタと接続される第１電力線と、
　前記第１コネクタおよび前記第２コネクタと接続される第２電力線と、
　前記第１コネクタおよび前記第２コネクタと接続される第３電力線と、を備え、
　前記第３電力線は、グラウンド線と接続される、請求項１に記載のＥＭＣフィルタ。 a first connector and a second connector to be connected to a power line of the conversion adaptor;
a first power line connected to the first connector and the second connector;
a second power line connected to the first connector and the second connector;
a third power line connected to the first connector and the second connector,
The EMC filter according to claim 1 , wherein the third power line is connected to a ground line. 　前記第１電力線は、プラス側電力線と接続され、
　前記第２電力線は、マイナス側電力線と接続される、請求項２に記載のＥＭＣフィルタ。 The first power line is connected to a positive power line,
The EMC filter according to claim 2 , wherein the second power line is connected to a negative power line. 　前記変換アダプタは、筐体を含み、
　前記ＥＭＣフィルタは、前記筐体内に配置される、請求項１または請求項２に記載のＥＭＣフィルタ。 The conversion adapter includes a housing,
The EMC filter according to claim 1 or 2, wherein the EMC filter is disposed within the housing. 　前記ＥＭＣフィルタは、
　前記第１電力線の一部および前記第２電力線の一部を取り囲むように配置されるコモンチョークコイルと、
　前記第１電力線および前記第３電力線と接続される第１コンデンサと、
　前記第２電力線および前記第３電力線と接続される第２コンデンサと、を含む、請求項２に記載のＥＭＣフィルタ。 The EMC filter comprises:
a common choke coil disposed to surround a portion of the first power line and a portion of the second power line;
a first capacitor connected to the first power line and the third power line;
3. The EMC filter of claim 2, further comprising: a second capacitor connected to the second power line and the third power line. 　車両と、
　充電スタンドと、
　前記車両と前記充電スタンドとの間に連結され、前記車両の電力線と前記充電スタンドの電力線とを接続する変換アダプタと、
　前記変換アダプタおよび前記車両のうちの少なくともいずれか一つに着脱可能であり、電力線に生じるコモンモードノイズを抑制するＥＭＣフィルタと、を備える、充電システム。
  Vehicles and
A charging station and
a conversion adapter connected between the vehicle and the charging station and connecting a power line of the vehicle to a power line of the charging station;
a charging system including: an EMC filter that is attachable to and detachable from at least one of the conversion adapter and the vehicle, and that suppresses common mode noise generated in a power line.
PCT/JP2023/030148 2023-08-22 2023-08-22 Emc filter and charging system Pending WO2025041262A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013062978A (en) * 2011-09-14 2013-04-04 Jfe Engineering Corp Electric vehicle allowing super rapid charging and support structure for super rapid charging cable therefor
JP2014183723A (en) * 2013-03-21 2014-09-29 Denso Corp Charging connection device
JP2015207817A (en) * 2014-04-17 2015-11-19 株式会社オートネットワーク技術研究所 Communication device
JP2016195540A (en) * 2008-11-18 2016-11-17 ヴァレオ システム ドゥ コントロール モトゥール Electric equipment shared for power supply and charging

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016195540A (en) * 2008-11-18 2016-11-17 ヴァレオ システム ドゥ コントロール モトゥール Electric equipment shared for power supply and charging
JP2013062978A (en) * 2011-09-14 2013-04-04 Jfe Engineering Corp Electric vehicle allowing super rapid charging and support structure for super rapid charging cable therefor
JP2014183723A (en) * 2013-03-21 2014-09-29 Denso Corp Charging connection device
JP2015207817A (en) * 2014-04-17 2015-11-19 株式会社オートネットワーク技術研究所 Communication device

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