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JPH1141712A - Connector for charging electric vehicle - Google Patents

Connector for charging electric vehicle

Info

Publication number
JPH1141712A
JPH1141712A JP9194060A JP19406097A JPH1141712A JP H1141712 A JPH1141712 A JP H1141712A JP 9194060 A JP9194060 A JP 9194060A JP 19406097 A JP19406097 A JP 19406097A JP H1141712 A JPH1141712 A JP H1141712A
Authority
JP
Japan
Prior art keywords
electric vehicle
coil
cooling air
primary
secondary coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9194060A
Other languages
Japanese (ja)
Inventor
Heiji Kuki
平次 九鬼
Kunihiko Watanabe
邦彦 渡辺
Toshiro Shimada
俊郎 嶋田
Noboru Chin
登 陳
Manabu Shiozaki
学 塩崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
Sumitomo Electric Industries Ltd
Harness Sogo Gijutsu Kenkyusho KK
Original Assignee
Sumitomo Wiring Systems Ltd
Sumitomo Electric Industries Ltd
Harness Sogo Gijutsu Kenkyusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Wiring Systems Ltd, Sumitomo Electric Industries Ltd, Harness Sogo Gijutsu Kenkyusho KK filed Critical Sumitomo Wiring Systems Ltd
Priority to JP9194060A priority Critical patent/JPH1141712A/en
Publication of JPH1141712A publication Critical patent/JPH1141712A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a connector for charging an electric vehicle which is capable of suppressing the temperature rise of a coil unit. SOLUTION: A secondary coil unit 20 consisting of a secondary coil 22 and a secondary core 21 is provided in a receptive part 12 of an electric vehicle EV. The receptive parts 12 is structured so as to have a primary coil unit made up of a primary coil 32 and a primary core 31 to be capable of being inserted into the inside of the secondary coil 22. Furthermore, a fan 29 is mounted on the deep part of the receptive part 12 in the direction of inserting a primary coil unit 30 in such a way that cooling air from this fan 29 flows along the circumferential surfaces of both coils 22, 32, so as to absorb the heat of both coil units 20, 30 and finally to be discharge into the atmosphere. This structure prevents heat from accumulating inside the receptive part 12 and thereby enables suppress the temperature rise of the coil units 20, 30.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は電気自動車を充電す
るための磁気結合装置に関する。
[0001] The present invention relates to a magnetic coupling device for charging an electric vehicle.

【0002】[0002]

【従来の技術】一般に、この種の磁気結合装置は、外部
電源装置に連なる一次コイルユニットとバッテリに連な
り電気自動車の受容部内に収容された二次コイルユニッ
トとを備え、両ユニットを接合させて一次コイルを励磁
すると、発生した磁束によって二次コイルに誘導起電力
が生じてバッテリが充電されるようになっている。
2. Description of the Related Art Generally, a magnetic coupling device of this kind includes a primary coil unit connected to an external power supply device and a secondary coil unit connected to a battery and housed in a receiving portion of an electric vehicle. When the primary coil is excited, an induced electromotive force is generated in the secondary coil by the generated magnetic flux, and the battery is charged.

【0003】[0003]

【発明が解決しようとする課題】ところで、この種の装
置では磁性材料のヒステリス損等によってコイルユニッ
トが発熱する。しかし、両コイルユニットは受容部内で
接合されるから、その受容部内に熱がこもって充電時に
コイルユニットの温度が上昇してしまうという問題があ
った。
In this type of apparatus, the coil unit generates heat due to hysteresis loss of the magnetic material. However, since the two coil units are joined in the receiving portion, there is a problem that heat is stored in the receiving portion and the temperature of the coil unit rises during charging.

【0004】本発明は上記事情に鑑みてなされ、その目
的は、コイルユニットの温度上昇を抑えることができる
電気自動車充電用コネクタを提供するところにある。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electric vehicle charging connector which can suppress a rise in temperature of a coil unit.

【0005】[0005]

【課題を解決するための手段及びその作用・効果】[Means for Solving the Problems and Their Functions and Effects]

<請求項1の発明>上記目的を達成するために、請求項
1の発明は、充電用電源によって電気自動車の蓄電装置
を充電するためのものであって、二次コイルを備えた二
次コイルユニットを電気自動車に形成した受容部内に配
し、その二次コイルユニット側に一次コイルを備えた一
次コイルユニットをセットして一次コイルを充電用電源
で励磁することで二次コイルに起電力を生じさせて蓄電
装置を充電するようにしたものにおいて、電気自動車側
に、冷却風を受容部内の二次コイルユニット側から一次
コイルユニット側を通して受容部の外方に流す冷却風供
給手段を設けたところに特徴を有する。本発明の構成に
よれば、冷却風が冷却風供給手段によって両コイルユニ
ットを強制冷却でき、しかも、その冷却風が流れる向き
を両コイルユニットを通って受容部の外方へと排出され
るようにしてあるから、熱が受容部内にこもることがな
くなり、温度上昇を抑えることができる。
<Invention of claim 1> In order to achieve the above object, an invention of claim 1 is for charging a power storage device of an electric vehicle by a charging power source, and comprises a secondary coil having a secondary coil. The unit is placed in the receiving part formed in the electric vehicle, the primary coil unit with the primary coil is set on the secondary coil unit side, and the primary coil is excited by the charging power supply, so that the electromotive force is applied to the secondary coil. In the electric vehicle, the cooling air supply means is provided on the electric vehicle side for flowing cooling air from the secondary coil unit side in the receiving part to the outside of the receiving part through the primary coil unit side. However, it has features. According to the configuration of the present invention, the cooling air can forcibly cool both coil units by the cooling air supply means, and the direction in which the cooling air flows is discharged to the outside of the receiving portion through the both coil units. Therefore, heat does not stay in the receiving portion, and a rise in temperature can be suppressed.

【0006】<請求項2の発明>請求項2の発明は、請
求項1記載の電気自動車充電用コネクタにおいて、二次
コイルの内側又は外側に一次コイルを挿入可能に形成す
ると共に、受容部のうち一次コイルの挿入方向の奥部に
冷却風供給手段の送風口を配置したところに特徴を有す
る。本発明の構成によれば、コイルの挿入方向の奥側に
冷却風供給手段の送風口があるから、冷却風が両コイル
の一端から他端に向かって流れ、そのコイルの内周面ま
たは外周面から熱を除去し、その熱を受容部の外方に排
出する。このように本発明では、冷却風の流れが安定
し、確実に熱を受容部の外に排出できるから、冷却効率
が向上する。
According to a second aspect of the present invention, in the electric vehicle charging connector according to the first aspect, a primary coil is formed so as to be insertable inside or outside a secondary coil, and a receiving portion is formed. It is characterized in that the air outlet of the cooling air supply means is arranged at the back in the insertion direction of the primary coil. According to the configuration of the present invention, the cooling air is supplied from one end to the other end of both coils because the air outlet of the cooling air supply means is located on the back side in the insertion direction of the coil. Removes heat from the surface and discharges the heat outside of the receiving portion. As described above, in the present invention, the flow of the cooling air is stable, and the heat can be reliably discharged to the outside of the receiving portion, so that the cooling efficiency is improved.

【0007】<請求項3の発明>請求項3の発明は、請
求項1又は請求項2記載の電気自動車充電用コネクタに
おいて、二次コイルの内側又は外側に一次コイルを挿入
可能に形成すると共に、その内側のコイルのうち内周面
と外周面の少なくとも一方に冷却風を流すための隙間を
形成したところに特徴を有する。本発明の構成によれ
ば、一般には放熱性が悪い内側のコイルも、隙間を流れ
る冷却風によって効率よく冷却できる。
According to a third aspect of the present invention, in the electric vehicle charging connector according to the first or second aspect, the primary coil is formed so as to be insertable inside or outside the secondary coil. A feature is that a gap for flowing cooling air is formed in at least one of the inner peripheral surface and the outer peripheral surface of the inner coil. According to the configuration of the present invention, the inner coil having generally poor heat dissipation can be efficiently cooled by the cooling air flowing through the gap.

【0008】<請求項4の発明>請求項4の発明は、請
求項3記載の電気自動車充電用コネクタにおいて、隙間
を形成するためのスペーサ部を備えたところに特徴を有
する。本発明の構成によれば、スペーサ部によって隙間
が安定して確保される。
<Invention of claim 4> The invention of claim 4 is characterized in that the electric vehicle charging connector according to claim 3 is provided with a spacer portion for forming a gap. According to the configuration of the present invention, the gap is stably secured by the spacer portion.

【0009】<請求項5の発明>請求項5の発明は、請
求項3または請求項4記載の電気自動車充電用コネクタ
において、一方のコイルに他方のコイルを挿入するとそ
の両コイル間に閉ループ状の磁気回路を構成するコアを
設け、このコアのうち隙間との対向部分に隙間を冷却風
供給手段側に開放させるための切り欠き部を形成したと
ころに特徴を有する。本発明の構成によれば、隙間がコ
アによって塞がれることがなくなり、安定して隙間に冷
却風が流れる。
According to a fifth aspect of the present invention, in the electric vehicle charging connector according to the third or fourth aspect, when the other coil is inserted into one coil, a closed loop is formed between the two coils. The magnetic circuit of the present invention is characterized in that a notch for opening the gap to the cooling air supply means side is formed in a portion of the core facing the gap. According to the configuration of the present invention, the gap is not closed by the core, and the cooling air stably flows through the gap.

【0010】[0010]

【発明の実施の形態】以下、本発明の一実施形態につい
て図1ないし図10を参照して説明する。本システムの
全体的構成は図1に示したようであり、電気自動車EV
の車体外部に例えば蓋11にて開閉可能な受容部12が
形成され、ここに後述する充電コネクタ13を挿入して
セットできるようになっている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The overall configuration of this system is as shown in FIG.
For example, a receiving portion 12 that can be opened and closed by a lid 11 is formed outside the vehicle body, and a charging connector 13 to be described later can be inserted and set here.

【0011】電気自動車EVの前記受容部12の奥部に
は、図2に示すように、二次コイルユニット20が配置
されている。この二次コイルユニット20は、二次コア
21及び二次コイル22を備え、全体が例えばアルミニ
ウム合金製の二次側シールドケース23内に収容されて
いる。上記二次コア21は例えばフェライト製であっ
て、図3に示したように、平板状の底板部21Aの奥部
に垂直に立ち上がる立上り壁部21Bを一体に有し、そ
の立上り壁部21Bの上端に前方に突出する円形台部2
1Cが形成されてなる。また、立上り壁部21Bの上端
面には、両側部に向かって下方に傾斜するテーパ状の切
り欠き部21Dが形成され、この切り欠き部21Dによ
って後述の隙間28A(図4参照)及び隙間36A(図
9参照)の一部が受容部12の奥面側へと開放されてい
る。
As shown in FIG. 2, a secondary coil unit 20 is disposed at the back of the receiving portion 12 of the electric vehicle EV. The secondary coil unit 20 includes a secondary core 21 and a secondary coil 22, and is entirely housed in a secondary shield case 23 made of, for example, an aluminum alloy. The secondary core 21 is made of, for example, ferrite, and as shown in FIG. 3, integrally has a rising wall 21B that rises vertically at the back of a flat bottom plate 21A. Circular base 2 projecting forward at the upper end
1C is formed. A tapered notch 21D is formed on the upper end surface of the rising wall 21B, and the tapered notch 21D is inclined downward toward both sides. 9 (see FIG. 9) is open to the back side of the receiving portion 12.

【0012】前記二次コイル22は比較的内径が大きな
円筒型に巻回され、図2に示すように、二次コア21の
底板部21Aの上方に位置して円形台部21Cと同心と
なるように配置されている。そして、二次コイル22の
リード線22Aは、電気自動車EVの蓄電装置である動
力バッテリ(図示せず)を充電するための充電回路に接
続されており、二次コイル22に誘導される高周波起電
力を整流してその動力バッテリを充電できる。
The secondary coil 22 is wound into a cylindrical shape having a relatively large inner diameter, and is located above the bottom plate 21A of the secondary core 21 and is concentric with the circular base 21C as shown in FIG. Are arranged as follows. The lead wire 22 </ b> A of the secondary coil 22 is connected to a charging circuit for charging a power battery (not shown) that is a power storage device of the electric vehicle EV. The power can be rectified to charge the power battery.

【0013】前記二次側シールドケース23は、図3に
示すように、筒状に形成され、その前後の開放部にはフ
ロントキャップ26と背面板27とが組み付けられてい
る。二次側シールドケース23の断面形状は、図4に示
すように、二次コイル22の外周面の約3/4の領域
と、二次コア21の底板部21Aに接するようになって
おり、これにより二次コイル22及び二次コア21で発
生するジュール熱を二次側シールドケース23に円滑に
伝達できる。
As shown in FIG. 3, the secondary-side shield case 23 is formed in a cylindrical shape, and a front cap 26 and a back plate 27 are assembled to open portions at the front and rear thereof. As shown in FIG. 4, the cross-sectional shape of the secondary-side shield case 23 is configured to be in contact with a region of about 3/4 of the outer peripheral surface of the secondary coil 22 and the bottom plate 21A of the secondary core 21. Thus, Joule heat generated in the secondary coil 22 and the secondary core 21 can be smoothly transmitted to the secondary shield case 23.

【0014】フロントキャップ26の上方側には、後述
の一次コイル32を二次コア21内に挿入するための挿
入孔26Aが備えてられ、フロントキャップ26の下方
側には、二次コア21の底板部21Aの前面を一次コア
31側に露出させるための開口26Bが形成されてい
る。さて、このフロントキャップ26には、一次、二次
の両コイル32,22間に隙間28A(図4参照)を形
成するためのスペーサ片28が突出形成されている。こ
のスペーサ片28はフロントキャップ26の内面のうち
前記挿入孔26Aの周縁部を3等配する位置に突出成形
されて、その二次コイル22の内周面に沿って延びてい
る(図3参照)。また、スペーサ片28は断面扇型をな
し(図4参照)、その外径は二次コイル22の内周面に
接する曲率をなすと共に、その内径は後述の一次側シー
ルドケース33の外周面に接する曲率となっている。そ
して、挿入孔26Aから挿入される一次コア31の先端
面を円形台部21Cに案内する役割も兼ねている。
An insertion hole 26A for inserting a primary coil 32 described below into the secondary core 21 is provided above the front cap 26, and an insertion hole 26A for the secondary core 21 is provided below the front cap 26. An opening 26B for exposing the front surface of the bottom plate portion 21A to the primary core 31 side is formed. On the front cap 26, a spacer piece 28 for forming a gap 28A (see FIG. 4) between both the primary and secondary coils 32, 22 is formed so as to protrude. The spacer piece 28 is formed so as to protrude from the inner surface of the front cap 26 at a position where the peripheral edge of the insertion hole 26A is arranged at an equal distance, and extends along the inner peripheral surface of the secondary coil 22 (see FIG. 3). ). The spacer piece 28 has a fan-shaped cross section (see FIG. 4), and its outer diameter has a curvature in contact with the inner peripheral surface of the secondary coil 22, and its inner diameter corresponds to the outer peripheral surface of a primary shield case 33 described later. The curvature is tangent. And, it also has a role of guiding the distal end face of the primary core 31 inserted from the insertion hole 26A to the circular base 21C.

【0015】背面板27のうち前記挿入孔26Aとの対
向位置には送風口27Aが形成され、その背面板27の
外面には送風口27Aから二次側シールドケース23内
に冷却風を供給するためのファン29が取り付けられて
おり、これにより、両コイル22,32の軸方向に沿っ
て冷却風が流れる。また、ファン29は、本発明の冷却
風供給装置に相当し、電気自動車EVの蓄電装置から電
力を受けて充電開始と共に駆動するように制御されてい
る。
An air outlet 27A is formed in the rear plate 27 at a position facing the insertion hole 26A, and cooling air is supplied from the air outlet 27A into the secondary side shield case 23 to the outer surface of the rear plate 27. The cooling air flows along the axial direction of both coils 22 and 32. The fan 29 corresponds to the cooling air supply device of the present invention, and is controlled so as to receive electric power from the power storage device of the electric vehicle EV and start driving at the same time as the start of charging.

【0016】尚、以上説明した二次コイルユニット20
は、図5及び図6に示すように、二次側シールドケース
23にファンを取り付けた状態でアッシされてから電気
自動車EVに組み込まれる。これにより、受容部12の
奥部にファンを取り付ける作業が容易となり、生産性が
向上する。
The secondary coil unit 20 described above
As shown in FIG. 5 and FIG. 6, after the fan is attached to the secondary-side shield case 23 in a state where the fan is attached, the secondary shield case 23 is incorporated into the electric vehicle EV. Thereby, the work of attaching the fan to the back of the receiving portion 12 becomes easy, and the productivity is improved.

【0017】一方、前記充電コネクタ13は図7に示す
ように、ハンドル14の先端に一次コイルユニット30
を配置して構成されている。一次コイルユニット30は
一次コア31及び一次コイル32からなり、その一次コ
ア31はやはりフェライト製であって、図8に示すよう
に平板状の縦板部31Aの上端に円柱脚部31Bを一体
に突設した形状をなし、この円柱脚部31Bに上記一次
コイル32がほぼ全域にわたって巻回されている。より
詳細には、円柱脚部31Bの周面には、周方向を3等配
する位置に軸方向に並行して延びる3つの突条36が一
体形成されており、この突条36によって円柱脚部31
Bの周面と一次コイル32との間には隙間36Aが介さ
れた状態となっていて(図9参照)、この隙間36Aに
前記ファン29からの冷却風が流される。
On the other hand, as shown in FIG. 7, the charging connector 13 has a primary coil unit 30 at the tip of the handle 14.
Are arranged. The primary coil unit 30 is composed of a primary core 31 and a primary coil 32, and the primary core 31 is also made of ferrite. As shown in FIG. 8, a columnar leg 31B is integrally formed on the upper end of a flat vertical plate 31A. The primary coil 32 has a projecting shape, and the primary coil 32 is wound around substantially the entire area of the cylindrical leg 31B. More specifically, on the peripheral surface of the cylindrical leg 31B, three ridges 36 extending in parallel in the axial direction are integrally formed at three equally spaced positions in the circumferential direction. Part 31
A gap 36A is interposed between the peripheral surface of B and the primary coil 32 (see FIG. 9), and the cooling air from the fan 29 flows through the gap 36A.

【0018】また一次コイルユニット30は、図7に示
すように、一次コイル32の外周及び一次コア31の縦
板部31Aがアルミニウム合金製の一次側シールドケー
ス33によって覆われている。この一次側シールドケー
ス33の先端面には上記一次コア31の円柱脚部31B
に対応する位置に円形開口33Aが形成されると共に、
縦板部31Aの下端には矩形開口33Bが形成されてい
る。また、一次側シールドケース33の後方側の側面に
は、図示しない排気口が形成され、ここから冷却風が外
方に排出される。なお、上記一次コイル32は充電コネ
クタ13に連結されている電源ケーブル15を介して充
電用電源装置40に接続されており(図1参照)、その
充電用電源装置40から一次コイル32に高周波電流を
流して励磁することができるようになっている。
In the primary coil unit 30, as shown in FIG. 7, the outer periphery of the primary coil 32 and the vertical plate portion 31A of the primary core 31 are covered by a primary shield case 33 made of an aluminum alloy. A cylindrical leg 31B of the primary core 31 is provided on the distal end surface of the primary shield case 33.
A circular opening 33A is formed at a position corresponding to
A rectangular opening 33B is formed at the lower end of the vertical plate portion 31A. An exhaust port (not shown) is formed on the rear side surface of the primary shield case 33, from which cooling air is discharged outward. The primary coil 32 is connected to a charging power supply 40 via a power cable 15 connected to the charging connector 13 (see FIG. 1). To be excited.

【0019】本実施形態の構成は以上の通りであり、次
にその作用を説明する。電気自動車EVの充電を行う場
合には、受容部12のカバー34を開放し、ここに充電
コネクタ13の先端部を挿入する。すると、図10に示
すように一次コイル32と一次コア31の円柱脚部31
Bとが二次コイル22内に進入して、その円柱脚部31
Bが二次コア21の円形台部21Cに当接すると共に、
二次コア21の底板部21Aが一次コイルユニット30
前面の矩形開口33B内に進入して一次コア31の縦板
部31Aの下端に当接する。これにより、両コア21,
31によって一次コイル32及び二次コイル22を貫通
する閉ループ状の磁気回路が構成される。そこで、充電
用電源装置40によって一次コイル32を励磁すれば、
一次コイル32により励起された高周波磁束が二次コイ
ル22に鎖交して起電力を発生し、これにて電気自動車
EVの蓄電装置を充電することができる。
The configuration of the present embodiment is as described above, and the operation will be described next. When charging the electric vehicle EV, the cover 34 of the receiving portion 12 is opened, and the tip of the charging connector 13 is inserted therein. Then, as shown in FIG. 10, the primary coil 32 and the cylindrical leg 31 of the primary core 31 are formed.
B enters the secondary coil 22 and its cylindrical leg 31
B contacts the circular base 21C of the secondary core 21 and
The bottom plate portion 21A of the secondary core 21 is the primary coil unit 30
It enters the rectangular opening 33B on the front surface and contacts the lower end of the vertical plate portion 31A of the primary core 31. Thereby, both cores 21,
31 forms a closed-loop magnetic circuit that passes through the primary coil 32 and the secondary coil 22. Therefore, if the primary coil 32 is excited by the charging power supply device 40,
The high-frequency magnetic flux excited by the primary coil 32 is linked to the secondary coil 22 to generate an electromotive force, whereby the power storage device of the electric vehicle EV can be charged.

【0020】蓄電装置の充電中には両コア21,31内
に大きな磁束が生じ、コイルユニット20,30全体が
発熱する。ところが、充電と同時に二次コイルユニット
20のファン29が駆動されるから、以下のように冷却
風が強制的に受容部12内を流れて各部位から熱を奪う
ことができる。即ち、冷却風は背面板27の送風口27
Aから二次側シールドケース23の内に入ると、その一
部は二次コア21の立上り壁部21Bに当たってそれを
冷却する。また、立上り壁部21Bの上端側は、切り欠
き部21Dを介して、両コイル22,32間の隙間28
Aと、一次コア31及び一次コイル32間の隙間36A
とが送風口27A側に開放されているから、その隙間2
8A,36A内に冷却風が流れ込む。両コイル22,3
2間の隙間28Aを通った冷却風は、二次コイル22の
内周面に接して二次コイル22の熱を除去すると共に、
一次側シードルケース33を介して一次コイル32の熱
も除去し、挿入孔26Aから外方に排出される。一方、
一次コア31と一次コイル32との間の隙間36Aを通
った冷却風は、その一次コア31の円柱脚部31Bと一
次コイル32の内周面から熱を奪うと共に、一次側シー
ルドケース33内に入り込んで、一次コア31の縦板部
31Aの背面側の熱も奪って図示しない排気口から外部
に排出される。
During charging of the power storage device, a large magnetic flux is generated in both cores 21 and 31, and the entire coil units 20 and 30 generate heat. However, since the fan 29 of the secondary coil unit 20 is driven at the same time as the charging, the cooling air can forcibly flow in the receiving portion 12 to take heat from each part as described below. That is, the cooling air is supplied to the air outlet 27 of the back plate 27.
When entering the inside of the secondary shield case 23 from A, a part thereof hits the rising wall 21B of the secondary core 21 and cools it. Further, the upper end side of the rising wall portion 21B is provided with a gap 28 between the two coils 22 and 32 through a notch portion 21D.
A and a gap 36A between the primary core 31 and the primary coil 32
Are open to the side of the air outlet 27A, so that the gap 2
Cooling air flows into 8A and 36A. Both coils 22, 3
The cooling air passing through the gap 28A between the two contacts the inner peripheral surface of the secondary coil 22 to remove the heat of the secondary coil 22,
The heat of the primary coil 32 is also removed through the primary cider case 33, and the primary coil 32 is discharged outward from the insertion hole 26A. on the other hand,
The cooling air passing through the gap 36A between the primary core 31 and the primary coil 32 removes heat from the cylindrical leg 31B of the primary core 31 and the inner peripheral surface of the primary coil 32, and enters the primary shield case 33. Then, the heat enters the back surface of the vertical plate portion 31A of the primary core 31 and is discharged to the outside through an exhaust port (not shown).

【0021】このように本実施形態によれば、ファン2
9からの冷却風によって両コイルユニット20,30を
強制冷却でき、熱を奪った冷却風が受容部12の外方へ
と開放されから、受容部12内に熱がこもることがなく
なり、温度上昇を抑えることができる。しかも、受容部
12のうち一次コイル32の挿入方向の奥側にファン2
9が位置しているから、冷却風が両コイル22,32の
一端から他端へと安定して流れて熱を外部に排出でき、
冷却効率がよい。また、二次コイル22の内側に挿入さ
れた一次コイル32の内外周面に冷却風を流すための隙
間28A、36Aがあるから、一般には放熱性が悪い内
側のコイルの内側部分に熱がこもることもなく、さら
に、この隙間28A,36Aをスペーサ片28及び突条
36によって形成しているから、隙間28A,36Aが
閉ざされることなく安定して確保できる。
As described above, according to the present embodiment, the fan 2
The cooling air from the cooling unit 9 can forcibly cool both the coil units 20 and 30, and the cooling air from which heat has been taken is released to the outside of the receiving part 12, so that the heat does not stay inside the receiving part 12 and the temperature rises. Can be suppressed. Moreover, the fan 2 is located on the back side of the receiving portion 12 in the insertion direction of the primary coil 32.
9, the cooling air can flow stably from one end of the coils 22 and 32 to the other end, and can discharge heat to the outside.
Good cooling efficiency. In addition, since there are gaps 28A and 36A for allowing cooling air to flow on the inner and outer peripheral surfaces of the primary coil 32 inserted inside the secondary coil 22, heat is generally stored in the inner portion of the inner coil having poor heat radiation. Further, since the gaps 28A and 36A are formed by the spacer pieces 28 and the ridges 36, the gaps 28A and 36A can be stably secured without being closed.

【0022】尚、一次コア31と二次コイル22は二次
側シールドケース23に接していて伝熱効率をよくして
あるから、そのシールドケース23からの放熱によって
も、コイルユニットの温度上昇を抑えられる。
Since the primary core 31 and the secondary coil 22 are in contact with the secondary shield case 23 to improve the heat transfer efficiency, the heat rise from the shield case 23 suppresses the temperature rise of the coil unit. Can be

【0023】<他の実施形態>本発明は、前記実施形態
に限定されるものではなく、例えば、以下に説明するよ
うな実施形態も本発明の技術的範囲に含まれ、さらに、
下記以外にも要旨を逸脱しない範囲内で種々変更して実
施することができる。 (1)前記実施形態では、冷却風供給手段としてファン
を用いたものを例示したが、例えば、コンプレッサーか
らの圧縮空気をホースで送風口27Aまで案内して、そ
こから圧縮エアーを放出する構成としてもよい。 (2)また、前記実施形態において、充電用コネクタ1
3の図示しない排気口側に吸引用のファンを備えた構成
として、冷却風の排気効率を上げることもできる。 (3)前記実施形態では、一次コア31に設けた突条3
6(スペーサ部)によって隙間36Aを形成していた
が、例えば、コア31にスペーサ部を設けずに、各シー
ルドケース33による支持のみによって、コイル32と
コア31の間に隙間36Aができるようにしたものであ
ってもよい。 (4)また、例えば、図11に示すように、二次コア2
1のうち円形台部21Cを前後に貫く貫通孔41を形成
すると共に、この貫通孔41に対応させて一次コア31
の円柱脚部31Bの軸方向に貫く貫通孔42を形成し、
これらの貫通孔41、42内に冷却風が流れるようにし
て、コア21,31を芯部から冷却する構成としすれ
ば、冷却効率が向上する。 (5)さらに、図11に示した貫通孔41、42の内周
面に複数の突起を形成すれば、冷却風とのコアとの接触
面積を広くなると共に、冷却風が乱流となって貫通孔4
1,42の表面を流れる冷却風と中心部を流れる冷却風
とが入れ替わり易くなるから、一層、冷却効率が向上す
る。 (6)また、コアと冷却風の接触面積を広くするため
に、図12に示すように、二次コア21の円形台部21
Cと一次コアの円柱脚部31Bに並行した複数の貫通孔
43,44を形成した構成としてもよい。
<Other Embodiments> The present invention is not limited to the above embodiments. For example, the following embodiments are also included in the technical scope of the present invention.
In addition to the following, various changes can be made without departing from the scope of the invention. (1) In the above-described embodiment, a cooling air supply unit using a fan has been exemplified. However, for example, a configuration in which compressed air from a compressor is guided to an air outlet 27A by a hose and compressed air is discharged therefrom. Is also good. (2) In the above embodiment, the charging connector 1
By providing a suction fan on the exhaust port side (not shown) of 3, the exhaust efficiency of the cooling air can be increased. (3) In the above embodiment, the ridge 3 provided on the primary core 31
The gap 36A is formed by 6 (spacer portion). For example, the gap 36A is formed between the coil 32 and the core 31 only by the support by each shield case 33 without providing the core 31 with the spacer portion. May be done. (4) For example, as shown in FIG.
1 and a through hole 41 penetrating the circular base 21C back and forth, and the primary core 31 corresponding to the through hole 41 is formed.
Forming a through hole 42 penetrating in the axial direction of the cylindrical leg 31B,
If cooling air flows through these through holes 41 and 42 to cool the cores 21 and 31 from the cores, the cooling efficiency is improved. (5) Further, if a plurality of projections are formed on the inner peripheral surfaces of the through holes 41 and 42 shown in FIG. 11, the contact area between the cooling air and the core is increased, and the cooling air becomes turbulent. Through hole 4
Since the cooling air flowing on the surfaces of the first and second surfaces and the cooling air flowing on the central portion are easily exchanged, the cooling efficiency is further improved. (6) To increase the contact area between the core and the cooling air, as shown in FIG.
A configuration in which a plurality of through holes 43 and 44 are formed in parallel with C and the columnar leg 31B of the primary core may be employed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の第1実施形態に係る充電システムを示
す概略的な斜視図
FIG. 1 is a schematic perspective view showing a charging system according to a first embodiment of the present invention.

【図2】同じく二次コイルユニットの縦断面図FIG. 2 is a longitudinal sectional view of the secondary coil unit.

【図3】同じく二次コイルユニットの分解斜視図FIG. 3 is an exploded perspective view of the secondary coil unit.

【図4】同じく二次コイルユニットの正断面図FIG. 4 is a front sectional view of the secondary coil unit.

【図5】二次コイルユニットを前面側から見た斜視図FIG. 5 is a perspective view of the secondary coil unit as viewed from the front side.

【図6】二次コイルユニットを背面側から見た斜視図FIG. 6 is a perspective view of the secondary coil unit viewed from the back side.

【図7】同じく一次コイルユニットの縦断面図FIG. 7 is a longitudinal sectional view of the primary coil unit.

【図8】同じく二次コア及び二次コイルを示す斜視図FIG. 8 is a perspective view showing a secondary core and a secondary coil.

【図9】同じく一次コイルユニットの正断面図FIG. 9 is a front sectional view of the same primary coil unit.

【図10】同じく一次及び二次の各ユニットを結合した
状態を示す縦断面図
FIG. 10 is a longitudinal sectional view showing a state in which the primary and secondary units are similarly connected.

【図11】変形例1を示す一次コア及び二次コアの斜視
FIG. 11 is a perspective view of a primary core and a secondary core showing a first modification;

【図12】変形例2を示す一次コア及び二次のコアの斜
視図
FIG. 12 is a perspective view of a primary core and a secondary core showing Modification 2;

【符号の説明】[Explanation of symbols]

12…受容部 13…コネクタ 20…二次コイルユニット 21…二次コア 21D…切り欠き部 22…二次コイル 27A…送風口 28…スペーサ片(スペーサ部) 28A,36A…隙間 29…ファン(冷却風供給手段) 30…一次コイルユニット 31…一次コア 32…一次コイル 36…突条(スペーサ部) 40…充電用電源装置 EV…電気自動車 DESCRIPTION OF SYMBOLS 12 ... Receiving part 13 ... Connector 20 ... Secondary coil unit 21 ... Secondary core 21D ... Notch part 22 ... Secondary coil 27A ... Air blowing port 28 ... Spacer piece (spacer part) 28A, 36A ... Gap 29 ... Fan (cooling) Wind supply means) 30 primary coil unit 31 primary core 32 primary coil 36 ridge (spacer part) 40 power supply device for charging EV electric vehicle

───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡辺 邦彦 愛知県名古屋市南区菊住1丁目7番10号 株式会社ハーネス総合技術研究所内 (72)発明者 嶋田 俊郎 愛知県名古屋市南区菊住1丁目7番10号 株式会社ハーネス総合技術研究所内 (72)発明者 陳 登 愛知県名古屋市南区菊住1丁目7番10号 株式会社ハーネス総合技術研究所内 (72)発明者 塩崎 学 大阪府大阪市此花区島屋1丁目1番3号 住友電気工業株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kunihiko Watanabe 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Inside Harness Research Institute, Inc. (72) Inventor Toshiro Shimada 1-Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture 7-10 Harness Research Institute, Inc. (72) Inventor Chen Chin 1-10-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi Prefecture Harness Research Institute, Inc. (72) Inventor Manabu Shiozaki Konohana, Osaka, Osaka 1-3-3 Kushimaya, Sumitomo Electric Industries, Ltd.

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 充電用電源によって電気自動車の蓄電装
置を充電するためのものであって、二次コイルを備えた
二次コイルユニットを前記電気自動車に形成した受容部
内に配し、その二次コイルユニット側に一次コイルを備
えた一次コイルユニットをセットして前記一次コイルを
前記充電用電源で励磁することで前記二次コイルに起電
力を生じさせて前記蓄電装置を充電するようにしたもの
において、 前記電気自動車側に、冷却風を前記受容部内の二次コイ
ルユニット側から前記一次コイルユニット側を通して前
記受容部の外方に流す冷却風供給手段を設けたことを特
徴とする電気自動車充電用コネクタ。
1. An electric vehicle for charging a power storage device of an electric vehicle by a charging power source, wherein a secondary coil unit having a secondary coil is disposed in a receiving portion formed in the electric vehicle, and the secondary coil unit is provided with a secondary coil unit. A primary coil unit provided with a primary coil is set on the coil unit side, and the primary coil is excited by the charging power supply to generate an electromotive force in the secondary coil to charge the power storage device. The electric vehicle charging device according to claim 1, wherein cooling air supply means for flowing cooling air from the secondary coil unit side in the receiving portion to the outside of the receiving portion through the primary coil unit side is provided on the electric vehicle side. Connector.
【請求項2】 前記二次コイルの内側又は外側に前記一
次コイルを挿入可能に形成すると共に、前記受容部のう
ち前記一次コイルの挿入方向の奥部に前記冷却風供給手
段の送風口を配置したことを特徴とする請求項1記載の
電気自動車充電用コネクタ。
2. A cooling air supply means, wherein the primary coil is formed so as to be insertable inside or outside the secondary coil, and an air outlet of the cooling air supply means is arranged at a depth of the receiving portion in the insertion direction of the primary coil. The electric vehicle charging connector according to claim 1, wherein:
【請求項3】 前記二次コイルの内側又は外側に前記一
次コイルを挿入可能に形成すると共に、その内側のコイ
ルのうち内周面と外周面の少なくとも一方に冷却風を流
すための隙間を形成したことを特徴とする請求項1又は
請求項2記載の電気自動車充電用コネクタ。
3. A primary coil is formed so as to be insertable inside or outside the secondary coil, and a gap is formed for flowing cooling air through at least one of an inner peripheral surface and an outer peripheral surface of the inner coil. The electric vehicle charging connector according to claim 1 or 2, wherein:
【請求項4】 前記隙間を形成するためのスペーサ部を
備えたことを特徴とする請求項3記載の電気自動車充電
用コネクタ。
4. The electric vehicle charging connector according to claim 3, further comprising a spacer for forming the gap.
【請求項5】 前記一方のコイルに他方のコイルを挿入
するとその両コイル間に閉ループ状の磁気回路を構成す
るコアを設け、このコアのうち前記隙間との対向部分に
前記隙間を前記冷却風供給手段側に開放させるための切
り欠き部を形成したことを特徴とする請求項3または請
求項4記載の電気自動車充電用コネクタ。
5. When the other coil is inserted into the one coil, a core constituting a closed loop magnetic circuit is provided between the two coils, and the gap is provided in a portion of the core facing the gap and the cooling air is provided. The connector for charging an electric vehicle according to claim 3 or 4, wherein a cut-out portion is formed to be open to the supply means side.
JP9194060A 1997-07-18 1997-07-18 Connector for charging electric vehicle Pending JPH1141712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9194060A JPH1141712A (en) 1997-07-18 1997-07-18 Connector for charging electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9194060A JPH1141712A (en) 1997-07-18 1997-07-18 Connector for charging electric vehicle

Publications (1)

Publication Number Publication Date
JPH1141712A true JPH1141712A (en) 1999-02-12

Family

ID=16318291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9194060A Pending JPH1141712A (en) 1997-07-18 1997-07-18 Connector for charging electric vehicle

Country Status (1)

Country Link
JP (1) JPH1141712A (en)

Cited By (7)

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JP2007149844A (en) * 2005-11-25 2007-06-14 Matsushita Electric Works Ltd L-shaped magnetic core
CN102117990A (en) * 2010-12-30 2011-07-06 余媛媛 Moisture-proof socket
WO2013073051A1 (en) * 2011-11-18 2013-05-23 トヨタ自動車株式会社 Power transmitting apparatus, power receiving apparatus, and power transmitting system
US20140176059A1 (en) * 2012-12-26 2014-06-26 Hyundai Motor Company Magnetic connector apparatus for charging electric vehicle
JPWO2013051150A1 (en) * 2011-10-07 2015-03-30 トヨタ自動車株式会社 Power receiving device, vehicle including the same, and power transmission system
JP2019122159A (en) * 2018-01-05 2019-07-22 Tdk株式会社 Device and system for wireless power transmission
US10367378B2 (en) 2014-06-06 2019-07-30 Ihi Corporation Power-transmitting device, power-receiving device, and wireless power supply system for underwater mobile object

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149844A (en) * 2005-11-25 2007-06-14 Matsushita Electric Works Ltd L-shaped magnetic core
JP4688032B2 (en) * 2005-11-25 2011-05-25 パナソニック電工株式会社 Non-contact power feeding device
CN102117990A (en) * 2010-12-30 2011-07-06 余媛媛 Moisture-proof socket
JPWO2013051150A1 (en) * 2011-10-07 2015-03-30 トヨタ自動車株式会社 Power receiving device, vehicle including the same, and power transmission system
WO2013073051A1 (en) * 2011-11-18 2013-05-23 トヨタ自動車株式会社 Power transmitting apparatus, power receiving apparatus, and power transmitting system
JPWO2013073051A1 (en) * 2011-11-18 2015-04-02 トヨタ自動車株式会社 Power transmission device, power reception device, and power transmission system
US9917478B2 (en) 2011-11-18 2018-03-13 Toyota Jidosha Kabushiki Kaisha Power transmission device, power reception device and power transfer system
US20140176059A1 (en) * 2012-12-26 2014-06-26 Hyundai Motor Company Magnetic connector apparatus for charging electric vehicle
US9409489B2 (en) * 2012-12-26 2016-08-09 Hyundai Motor Company Automotive inductive charger with insertable magnetic core
US10367378B2 (en) 2014-06-06 2019-07-30 Ihi Corporation Power-transmitting device, power-receiving device, and wireless power supply system for underwater mobile object
US11075544B2 (en) 2014-06-06 2021-07-27 Ihi Corporation Power-transmitting device, power-receiving device, and wireless power supply system
JP2019122159A (en) * 2018-01-05 2019-07-22 Tdk株式会社 Device and system for wireless power transmission

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