JP2011193616A - Coil positioning/holding device of noncontact power-feed device - Google Patents

Coil positioning/holding device of noncontact power-feed device Download PDF

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JP2011193616A
JP2011193616A JP2010056915A JP2010056915A JP2011193616A JP 2011193616 A JP2011193616 A JP 2011193616A JP 2010056915 A JP2010056915 A JP 2010056915A JP 2010056915 A JP2010056915 A JP 2010056915A JP 2011193616 A JP2011193616 A JP 2011193616A
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electromagnetic coil
positioning
power
side electromagnetic
coil
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JP5496718B2 (en
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Takeshi Wada
武 和田
Atsumi Obata
篤臣 小幡
Sadahito Hijikata
禎人 土方
Atsushi Masuda
敦 増田
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Hino Motors Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil positioning/holding device of a noncontact power-feed device which can separably and oppositely hold a power-feed side electromagnetic coil and a power-receiving side electromagnetic coil at a prescribed interval while quickly and favorably positioning them though it is simple in constitution and low in price. <P>SOLUTION: The coil positioning/holding device of the noncontact power-feed device charges an in-vehicle battery by supplying power in a noncontact manner to the power-receiving side electromagnetic coil (2) arranged at a vehicle side from the power-feed side electromagnetic coil (7) arranged at the ground side. The coil positioning/holding device is also characterized in that it guides the power-feed side electromagnetic coil (7) and the power-receiving side electromagnetic coil (2) to prescribed positioning positions and oppositely hold them at the prescribed interval by using the action of electromagnetic adsorption forces which are generated by electromagnets (4, 6) which are substantially integrally attached to at least either the power-feed side electromagnetic coil (7) or the power-receiving side electromagnetic soil (2), and magnetic bodies (3, 5) which are attached to the other of the coils corresponding to the electromagnets (4, 6). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、例えば電気自動車やハイブリッド車両などに搭載されるバッテリを充電するための非接触給電装置に関する。   The present invention relates to a non-contact power feeding device for charging a battery mounted on, for example, an electric vehicle or a hybrid vehicle.

電気自動車やハイブリッド車両に搭載されるバッテリを充電する方法の一つとして、非接触給電装置が知られている。   As one of methods for charging a battery mounted on an electric vehicle or a hybrid vehicle, a non-contact power feeding device is known.

この非接触給電装置は、電磁誘導の相互誘電作用を利用して、地上（充電スタンド等）に設けた１次側（給電側）の給電側（送電側）電磁コイルから、車両側に設けた２次側（受電側）の受電側電磁コイルへ、非接触で電力を供給する。このような非接触給電装置の構成例は、例えば特許文献１〜４に記載されている。   This non-contact power supply device is provided on the vehicle side from the primary side (power supply side) power supply side (power transmission side) electromagnetic coil provided on the ground (charging station etc.) using the mutual dielectric action of electromagnetic induction. Electric power is supplied in a non-contact manner to the power receiving side electromagnetic coil on the secondary side (power receiving side). Examples of the configuration of such a non-contact power feeding device are described in Patent Documents 1 to 4, for example.

特表平０８−５０２６４０号公報Japanese National Patent Publication No. 08-502640 特開平０８−２６５９９２号公報Japanese Patent Laid-Open No. 08-265992 特開２００８−２８８８８９号公報JP 2008-288889 A 特開２０００−１５２５１２号公報JP 2000-152512 A

従来の非接触給電装置においては、特許文献１〜４にも記載されているように、１次側の給電側電磁コイルと、２次側の受電側電磁コイルと、を位置合わせして所定間隔で対面させることが充電効率等の関係から必要であり、このために、位置合わせの方法などについて種々提案されている。   In the conventional non-contact power feeding device, as described in Patent Documents 1 to 4, the primary power feeding side electromagnetic coil and the secondary power receiving side electromagnetic coil are aligned to a predetermined interval. In order to meet this requirement, various methods of alignment have been proposed.

すなわち、地上側に固定的に設置されている１次側電磁コイルに対して、車両側に搭載されている２次側電磁コイルを、所定に位置合わせする際に、車両の運転者の技量に依らずに、また、運転者や別の者が、伸縮自在なケーブルなどに接続された１次側電磁コイル（或いは２次側電磁コイル）をマニュアル操作により所定位置まで持ち来たすような面倒な作業を不要とするような技術が提案されている。   That is, when the secondary side electromagnetic coil mounted on the vehicle side is aligned with the primary side electromagnetic coil fixedly installed on the ground side, the skill of the driver of the vehicle is reduced. Regardless, the driver or another person takes the troublesome work of bringing the primary side electromagnetic coil (or secondary side electromagnetic coil) connected to the extendable cable etc. to the predetermined position by manual operation. Techniques that eliminate the need have been proposed.

特許文献１〜３に記載されているものは、２次側電磁コイルの位置情報（Ｘ，Ｙ，Ｚ方向の位置情報など）を取得して、１次側電磁コイルと２次側電磁コイルとの相対位置が所定範囲となるように、車両運転者に情報を提示したり、或いは１次側電磁コイルや２次側電磁コイルを駆動機構等により自動的に移動させるようにしている。   What is described in Patent Documents 1 to 3 acquires position information (such as position information in the X, Y, and Z directions) of the secondary side electromagnetic coil, and obtains the primary side electromagnetic coil, the secondary side electromagnetic coil, and the like. Information is presented to the vehicle driver or the primary side electromagnetic coil and the secondary side electromagnetic coil are automatically moved by a drive mechanism or the like so that the relative position of is in a predetermined range.

また、特許文献４に記載されているものは、水平方向（Ｘ，Ｙ方向）の位置合わせは、運転者による車両の位置合わせにより行なわせるが、高さ方向（Ｚ方向）の位置合わせ（１次側電磁コイルと２次側電磁コイルの隙間合わせ）は、自動で上下動可能な駆動機構により１次側電磁コイルを移動させて行わせるようになっている。   In addition, in Patent Document 4, the horizontal alignment (X, Y direction) is performed by the vehicle alignment by the driver, but the height alignment (Z direction) (1 The clearance between the secondary side electromagnetic coil and the secondary side electromagnetic coil) is performed by moving the primary side electromagnetic coil by a drive mechanism that can automatically move up and down.

しかしながら、従来のものは、２次側電磁コイルの位置情報（Ｘ，Ｙ，Ｚ方向の位置情報など）の取得するための複雑で高価な装置が必要であったり、位置合わせのために１次側電磁コイル（或いは２次側電磁コイル）を移動させるための複雑で高価な装置（リニアガイド装置やボールスクリュウ機構などの直動機構やその駆動源（電動モータ、油圧や空気圧などを利用した流体圧アクチュエータなど））が必要であり、構成が複雑化して、高コスト化するといった実情がある。   However, the conventional one requires a complicated and expensive device for acquiring the position information (such as position information in the X, Y, and Z directions) of the secondary electromagnetic coil, or the primary for positioning. Complex and expensive devices for moving the side electromagnetic coil (or secondary side electromagnetic coil) (linear motion mechanisms such as linear guide devices and ball screw mechanisms and their drive sources (electric motors, fluids using hydraulic pressure, pneumatic pressure, etc.) Pressure actuator, etc.) is required, and the configuration is complicated and the cost is increased.

本発明は、かかる実情に鑑みなされたもので、簡単かつ安価な構成でありながら、地上側に配設される１次側の給電側電磁コイルと、車両側に搭載される２次側の受電側電磁コイルと、を、迅速かつ良好に位置合わせしつつ所定間隔で接離可能に対面保持させることができる非接触給電装置のコイル位置決め保持装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and has a simple and inexpensive configuration, but a primary power supply side electromagnetic coil disposed on the ground side and a secondary side power reception mounted on the vehicle side. It is an object of the present invention to provide a coil positioning and holding device for a non-contact power feeding device capable of holding a side electromagnetic coil in a face-to-face manner so as to be able to contact and separate at a predetermined interval while aligning quickly and satisfactorily.

このため、本発明に係る非接触給電装置のコイル位置決め保持装置は、
地上側に配設される給電側電磁コイルから、車両側に配設される受電側電磁コイルへ非接触で電力を供給して車載のバッテリを充電するための非接触給電装置のコイル位置決め保持装置であって、
給電側電磁コイル或いは受電側電磁コイルの少なくとも一方に略一体的に取り付けられる電磁石と、当該電磁石に対応して他方に取り付けられる磁性体と、を介して発生される電磁吸着力の作用によって、給電側電磁コイルと、受電側電磁コイルと、を、所定の位置決め位置へ案内すると共に所定間隔で対面保持させることを特徴とする。 For this reason, the coil positioning holding device of the non-contact power feeding device according to the present invention is:
A coil positioning and holding device for a non-contact power feeding device for charging electric power from a power feeding side electromagnetic coil disposed on the ground side to a power receiving side electromagnetic coil disposed on the vehicle side in a non-contact manner. Because
Power is fed by the action of electromagnetic attraction generated through an electromagnet attached to at least one of the power supply side electromagnetic coil or the power reception side electromagnetic coil and a magnetic body attached to the other corresponding to the electromagnet. The side electromagnetic coil and the power receiving side electromagnetic coil are guided to a predetermined positioning position and are held facing each other at a predetermined interval.

本発明において、前記磁性体は、電磁石に対応する所定領域の周囲が非磁性体により覆われて配設されていると共に、対応する電磁石の先端を受け入れる凹部であって底部から開口端に向けて拡張された凹部を有することを特徴とすることができる。   In the present invention, the magnetic body is disposed so that the periphery of a predetermined region corresponding to the electromagnet is covered with a non-magnetic body, and is a recess that receives the tip of the corresponding electromagnet from the bottom toward the opening end. It can be characterized by having an expanded recess.

本発明において、前記電磁石の突出量によって前記所定間隔が調整されることを特徴とすることができる。   In the present invention, the predetermined interval may be adjusted according to a protruding amount of the electromagnet.

本発明によれば、簡単かつ安価な構成でありながら、地上側に配設される１次側の給電側電磁コイルと、車両側に搭載される２次側の受電側電磁コイルと、を、迅速かつ良好に位置合わせしつつ所定間隔で接離可能に対面保持させることができる非接触給電装置のコイル位置決め保持装置を提供することができる。   According to the present invention, the primary side power supply side electromagnetic coil disposed on the ground side and the secondary side power reception side electromagnetic coil mounted on the vehicle side, with a simple and inexpensive configuration, It is possible to provide a coil positioning and holding device for a non-contact power feeding device that can be face-to-face held so as to be able to contact and separate at a predetermined interval while aligning quickly and satisfactorily.

本発明の一実施の形態に係る非接触給電装置の給電側電磁コイル（１次側電磁コイル）と受電側電磁コイル（２次側電磁コイル）の位置決め保持装置の全体的な概略構成を示す全体構成図である。The whole which shows the whole schematic structure of the positioning holding | maintenance apparatus of the electric power feeding side electromagnetic coil (primary side electromagnetic coil) and the receiving side electromagnetic coil (secondary side electromagnetic coil) of the non-contact electric power feeder which concerns on one embodiment of this invention. It is a block diagram. 同上実施の形態に係る２次側電磁コイル及びフレーム要素を車両外側から車両側面に直交する方向に沿って見た側面図である。It is the side view which looked at the secondary side electromagnetic coil and frame element which concern on embodiment same as the above along the direction orthogonal to the vehicle side surface from the vehicle outer side. 同上実施の形態において、電磁吸着力により、１次側電磁コイルと２次側電磁コイルを位置決め位置まで案内して両者を所定ギャップで対面保持する様子を拡大して説明した上面図である。In embodiment same as the above, it is a top view which expanded and demonstrated a mode that guides a primary side electromagnetic coil and a secondary side electromagnetic coil to a positioning position by electromagnetic attraction force, and hold | maintains both in a predetermined gap. 同上実施の形態に係る１次側電磁コイル及びフレーム要素の２次側電磁コイルに対する相対移動を説明するための上面図である。It is a top view for demonstrating the relative movement with respect to the secondary side electromagnetic coil of the primary side electromagnetic coil and frame element which concern on embodiment same as the above. 同上実施の形態に係る１次側電磁コイルと２次側電磁コイルとが所定ギャップＸで対面保持された状態を示す上面図である。It is a top view which shows the state by which the primary side electromagnetic coil and secondary side electromagnetic coil which concern on embodiment same as the above were hold | maintained by the predetermined gap X. FIG. 同上実施の形態に係る、アーム機構を介して１次側電磁コイル及びフレーム要素を移動可能支持するハンドリング装置の車両前方から見た側面図である。It is the side view seen from the vehicles front of the handling device which supports a primary side electromagnetic coil and a frame element through an arm mechanism concerning the embodiment same as the above.

以下、本発明に係る実施の形態を、添付の図面を参照しつつ説明する。なお、以下で説明する実施の形態により、本発明が限定されるものではない。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

本実施の形態に係る非接触給電装置においては、図１に示すように、例えばバス等の車両１の側面に２次側の受電側電磁コイル（２次側電磁コイル）２が搭載されている。   In the non-contact power feeding device according to the present embodiment, as shown in FIG. 1, for example, a secondary power receiving side electromagnetic coil (secondary side electromagnetic coil) 2 is mounted on a side surface of a vehicle 1 such as a bus. .

この２次側電磁コイル２の周囲には、車両１の側面と略直交する方向から見た図である図２に示すように、非磁性体の材料（例えば、アルミニウム、非磁性のステンレス、プラスチック等の樹脂系材料など）によって形成されるフレーム要素１１Ａが設けられている。   As shown in FIG. 2, which is a diagram viewed from a direction substantially orthogonal to the side surface of the vehicle 1, there is a nonmagnetic material (for example, aluminum, nonmagnetic stainless steel, plastic) around the secondary side electromagnetic coil 2. A frame element 11A formed of a resin-based material or the like is provided.

フレーム要素１１Ａには、一対の位置決め用磁性体３が、図２に示すように、２次側電磁コイル２を挟んで対向して設けられている。位置決め用磁性体３は、図１、図３〜図５に示すように、凹形状に（或いは凹部を有するように）形成されており、これがフレーム要素１１Ａに例えば埋め込まれ、図３に拡大して示したように、フレーム要素１１Ａの表面から位置決め用磁性体３の底部３Ｂが所定量だけ退避するような構成となっている。   As shown in FIG. 2, a pair of positioning magnetic bodies 3 are provided on the frame element 11 </ b> A so as to face each other with the secondary electromagnetic coil 2 interposed therebetween. As shown in FIGS. 1 and 3 to 5, the positioning magnetic body 3 is formed in a concave shape (or has a concave portion), which is embedded in the frame element 11 </ b> A, for example, and is enlarged in FIG. 3. As shown, the bottom 3B of the positioning magnetic body 3 is retracted from the surface of the frame element 11A by a predetermined amount.

また、図２に示したように、フレーム要素１１Ａには、一対のギャップ調整用磁性体５が、２次側電磁コイル２を挟んで対向して設けられている。一対のギャップ調整用磁性体５は、一対の位置決め用磁性体３間を結ぶ直線と略直交する直線上に配置されている。   As shown in FIG. 2, the frame element 11 </ b> A is provided with a pair of gap adjusting magnetic bodies 5 facing each other with the secondary electromagnetic coil 2 interposed therebetween. The pair of gap adjusting magnetic bodies 5 are arranged on a straight line that is substantially orthogonal to the straight line connecting the pair of positioning magnetic bodies 3.

この一対のギャップ調整用磁性体５は、図４や図５に示すように、フレーム要素１１Ａの表面と略面一となるように配設されている。   The pair of gap adjusting magnetic bodies 5 are disposed so as to be substantially flush with the surface of the frame element 11A, as shown in FIGS.

本実施の形態に係る地上側（充電スタンド等）に設けられた１次側の給電側電磁コイル（１次側電磁コイル）７は、図１や図４に示すように、２次側電磁コイル２と対面可能にアーム機構２０により支持されている。なお、充電の際には、１次側電磁コイル７と、２次側電磁コイル２と、は、図２平面に略直交する方向から見たときに位置が略一致して重畳されるようになっている。   The primary power supply side electromagnetic coil (primary side electromagnetic coil) 7 provided on the ground side (charging stand or the like) according to the present embodiment is a secondary side electromagnetic coil as shown in FIGS. 2 is supported by the arm mechanism 20 so as to be able to face 2. When charging, the primary electromagnetic coil 7 and the secondary electromagnetic coil 2 are superimposed so that their positions are substantially coincident when viewed from a direction substantially orthogonal to the plane of FIG. It has become.

アーム機構２０は、アーム部２０Ａ、関節部２０Ｂ、アーム部２０Ｃなどを含んで構成されており、図４や図６に示すように、アーム部２０Ａが、非接触給電装置の電力供給システム等が備えられるハンドリング装置８に対してＺ軸（高さ方向）廻りに回動自在に支持され、このアーム部２０Ａには関節部２０Ｂを介してＺ軸廻りに回動自在にアーム部２０Ｃが取り付けられている。   The arm mechanism 20 includes an arm portion 20A, a joint portion 20B, an arm portion 20C, and the like. As shown in FIGS. 4 and 6, the arm portion 20A is a power supply system of a non-contact power feeding device or the like. It is supported so as to be rotatable about the Z axis (height direction) with respect to the handling device 8 provided, and an arm portion 20C is attached to this arm portion 20A via a joint portion 20B so as to be rotatable about the Z axis. ing.

そして、このアーム部２０Ｃの先端側に、Ｚ軸廻りに回動自在に、更には図６平面内において揺動可能に、１次側電磁コイル７が取り付けられている。
すなわち、１次側電磁コイル７は、地上等に設置されるハンドリング装置８に対して、少なくとも図４中矢印Ａの方向（停車している車両１の側面（２次側電磁コイル）に略直交する方向）に相対移動可能に支持されている。 A primary electromagnetic coil 7 is attached to the distal end side of the arm portion 20C so as to be rotatable around the Z axis and further to be swingable in the plane of FIG.
That is, the primary electromagnetic coil 7 is substantially orthogonal to at least the direction of arrow A in FIG. 4 (the side surface (secondary electromagnetic coil) of the stopped vehicle 1) with respect to the handling device 8 installed on the ground or the like. In the direction of movement).

１次側電磁コイル７の周囲には、２次側電磁コイル２と同様に、非磁性体の材料（例えば、アルミニウム、非磁性のステンレス、プラスチック等の樹脂系材料など）によって形成されるフレーム要素１１Ｂが設けられている。   A frame element formed of a non-magnetic material (for example, resin material such as aluminum, non-magnetic stainless steel, plastic, etc.) around the primary-side electromagnetic coil 7, similarly to the secondary-side electromagnetic coil 2. 11B is provided.

このフレーム要素１１Ｂには、フレーム要素１１Ａに設けられている一対の位置決め用磁性体３に対向して配設され、当該位置決め用磁性体３の凹形状に所定間隙を持って収容可能なサイズの一対の位置決め用電磁石４が設けられている。この位置決め用電磁石４は、図４や図５に示すように、フレーム要素１１Ｂの表面１１ｂから２次側電磁コイル２方向に所定量突出するように構成されている。   The frame element 11B is disposed to face the pair of positioning magnetic bodies 3 provided on the frame element 11A, and has a size that can be accommodated with a predetermined gap in the concave shape of the positioning magnetic body 3. A pair of positioning electromagnets 4 is provided. As shown in FIGS. 4 and 5, the positioning electromagnet 4 is configured to project a predetermined amount from the surface 11 b of the frame element 11 </ b> B in the direction of the secondary electromagnetic coil 2.

また、フレーム要素１１Ｂには、フレーム要素１１Ａに設けられている一対のギャップ調整用磁性体５に対向して配設される一対のギャップ調整用電磁石６が設けられている。この一対のギャップ調整用電磁石６は、図４や図５に示すように、フレーム要素１１Ｂの表面１１ｂから２次側電磁コイル２方向に所定量突出するように構成されている。   In addition, the frame element 11B is provided with a pair of gap adjusting electromagnets 6 arranged to face the pair of gap adjusting magnetic bodies 5 provided in the frame element 11A. As shown in FIGS. 4 and 5, the pair of gap adjusting electromagnets 6 is configured to project a predetermined amount from the surface 11b of the frame element 11B in the direction of the secondary electromagnetic coil 2.

そして、この一対のギャップ調整用電磁石６は、対応するギャップ調整用磁性体５にそれぞれ当接可能に配設されており、当接した際には、１次側電磁コイル７と、２次側電磁コイル２と、の間隙（ギャップ）が、良好な充電効率を達成できる距離Ｘ（図５参照）となるように、その突出量が設定されている。   The pair of gap adjusting electromagnets 6 are arranged so as to be able to contact the corresponding gap adjusting magnetic bodies 5, respectively, and when contacted, the primary electromagnetic coil 7 and the secondary side are arranged. The protrusion amount is set so that the gap (gap) between the electromagnetic coil 2 and the electromagnetic coil 2 is a distance X (see FIG. 5) at which good charging efficiency can be achieved.

このようなシステムにおいて、車両１に搭載されているバッテリ（図示せず）を充電する場合の給電操作の一例について説明する。   In such a system, an example of a power feeding operation when charging a battery (not shown) mounted on the vehicle 1 will be described.

（Ｓｔｅｐ１）
まず、運転者は車両１を所定位置に停車させる。 (Step 1)
First, the driver stops the vehicle 1 at a predetermined position.

（Ｓｔｅｐ２）
ハンドリング装置８は、アーム機構２０を駆動して１次側電磁コイル７を図４中矢印Ａの方向に移動させる。人がマニュアル操作で、アーム機構２０により支持されている１次側電磁コイル７を図４中矢印Ａの方向に移動させることも可能である。 (Step 2)
The handling device 8 drives the arm mechanism 20 to move the primary electromagnetic coil 7 in the direction of arrow A in FIG. It is also possible for a person to manually move the primary electromagnetic coil 7 supported by the arm mechanism 20 in the direction of arrow A in FIG.

（Ｓｔｅｐ３）
位置決め用電磁石４及びギャップ調整用電磁石６に通電する。すると、位置決め用電磁石４及びギャップ調整用電磁石６と、対面する位置決め用磁性体３及びギャップ調整用磁性体５と、の間に磁気吸着力が発生するため、この磁気吸着力によって、１次側電磁コイル７と略一体のフレーム要素１１Ｂが、図４中矢印Ａの方向に移動され、図５に示したように、一対の位置決め用電磁石４が位置決め用磁性体３に吸着保持されると共に、一対のギャップ調整用電磁石６が一対のギャップ調整用磁性体５に吸着保持される。
なお、図３に示したように、位置決め用電磁石４と、対面する位置決め用磁性体３と、の間に磁気吸着力が作用すると、位置決め用磁性体３に設けられている凹部の傾斜面３Ａを介して、底部３Ｂまで良好に案内されて相互に吸着保持される。 (Step 3)
The positioning electromagnet 4 and the gap adjusting electromagnet 6 are energized. Then, a magnetic attractive force is generated between the positioning electromagnet 4 and the gap adjusting electromagnet 6 and the positioning magnetic body 3 and the gap adjusting magnetic body 5 facing each other. The frame element 11B substantially integrated with the electromagnetic coil 7 is moved in the direction of the arrow A in FIG. 4, and as shown in FIG. 5, the pair of positioning electromagnets 4 are attracted and held by the positioning magnetic body 3, A pair of gap adjusting electromagnets 6 are attracted and held by the pair of gap adjusting magnetic bodies 5.
As shown in FIG. 3, when a magnetic attraction force acts between the positioning electromagnet 4 and the facing magnetic body 3 facing, the inclined surface 3 </ b> A of the recess provided in the positioning magnetic body 3. Are guided well to the bottom 3B and are adsorbed and held together.

（Ｓｔｅｐ４）
図５に示したように、一対の位置決め用電磁石４が位置決め用磁性体３に吸着保持されると共に、一対のギャップ調整用電磁石６が一対のギャップ調整用磁性体５に吸着保持されると、１次側電磁コイル７と、２次側電磁コイル２と、の間で、図２平面内における位置決めが自動的になされると共に、１次側電磁コイル７と、２次側電磁コイル２と、の間隙（ギャップ）が良好な充電効率を達成できる距離（ギャップ）Ｘ（図５参照）にセットされる。 (Step 4)
As shown in FIG. 5, when the pair of positioning electromagnets 4 are attracted and held by the positioning magnetic body 3, and the pair of gap adjusting electromagnets 6 are attracted and held by the pair of gap adjusting magnetic bodies 5, Positioning in the plane of FIG. 2 is automatically performed between the primary side electromagnetic coil 7 and the secondary side electromagnetic coil 2, and the primary side electromagnetic coil 7, the secondary side electromagnetic coil 2, Is set to a distance (gap) X (see FIG. 5) at which good charging efficiency can be achieved.

（Ｓｔｅｐ５）
この状態で、１次側電磁コイル７へ給電用電流を流すことで、電磁誘導の相互誘電作用を利用し、２次側電磁コイル２を介して車両１に搭載されているバッテリ（図示せず）に効率良く給電する（バッテリを充電する）。 (Step 5)
In this state, a current (not shown) is mounted on the vehicle 1 via the secondary electromagnetic coil 2 using the mutual dielectric action of electromagnetic induction by supplying a current for feeding to the primary electromagnetic coil 7. ) Efficiently (charging the battery).

（Ｓｔｅｐ５）
給電（充電）が終了したら、１次側電磁コイル７への給電を停止すると共に、位置決め用電磁石４及びギャップ調整用電磁石６への通電を停止する。 (Step 5)
When the power supply (charging) is completed, power supply to the primary electromagnetic coil 7 is stopped, and power supply to the positioning electromagnet 4 and the gap adjusting electromagnet 6 is stopped.

これにより、一対の位置決め用電磁石４と位置決め用磁性体３との間の磁気吸着力が消失すると共に、一対のギャップ調整用電磁石６と一対のギャップ調整用磁性体５との間の磁気吸着力が消失するため、１次側電磁コイル７と、２次側電磁コイル２と、を簡単に解放して両者を離間させることが可能となる。   Thereby, the magnetic attractive force between the pair of positioning electromagnets 4 and the positioning magnetic body 3 disappears, and the magnetic attractive force between the pair of gap adjusting electromagnets 6 and the pair of gap adjusting magnetic bodies 5. Disappears, the primary side electromagnetic coil 7 and the secondary side electromagnetic coil 2 can be easily released and separated from each other.

このような係合が解かれた状態とした後は、アーム機構２０に作用される復元力（例えばトーションバーやスプリング等の弾性体の復元力などを利用することができる）などを利用して、或いはマニュアル操作等によって、フレーム要素１１Ｂ及び１次側電磁コイル７を収容位置（原位置）へ移動させて、給電処理を終了する。   After such disengagement, the restoring force applied to the arm mechanism 20 (for example, the restoring force of an elastic body such as a torsion bar or a spring can be used) is used. Alternatively, the frame element 11B and the primary electromagnetic coil 7 are moved to the accommodation position (original position) by manual operation or the like, and the power supply process is terminated.

このように、本実施の形態に係る充電装置によれば、
１次側電磁コイル７の周囲に設けた位置決め用電磁石４とギャップ調整用電磁石６とを設ける一方で、
充電の際に１次側電磁コイル７と対面配置される２次側電磁コイル２の周囲に、位置決め用電磁石４とギャップ調整用電磁石６の位置にそれぞれ対応して位置決め用磁性体３とギャップ調整用磁性体５とを設け、
１次側電磁コイル７と、２次側電磁コイル２と、がある程度近づいたところで、位置決め用電磁石４及びギャップ調整用電磁石６へ通電して、対応する位置決め用磁性体３及びギャップ調整用磁性体５との間で磁気吸着力を発生させ、この電磁吸着力を利用して、位置決め用電磁石４とギャップ調整用電磁石６とを介して、１次側電磁コイル７と、２次側電磁コイル２と、を所定の位置決め位置まで案内しつつ接近させ、同時にギャップ調整用電磁石６とギャップ調整用磁性体５とにより１次側電磁コイル７と、２次側電磁コイル２と、の間隙（ギャップ）を高い給電効率を維持できる距離に対面保持できるようにしたので、充電の際に、車両１を厳密な位置に停車させなくても、比較的高精度に所定位置（Ｘ、Ｙ、Ｚ方向の所定位置決め位置）に、１次側電磁コイル７と、２次側電磁コイル２と、をセットすることができる。 Thus, according to the charging device according to the present embodiment,
While providing the positioning electromagnet 4 and the gap adjusting electromagnet 6 provided around the primary electromagnetic coil 7,
The magnetic body for positioning 3 and the gap adjustment are arranged around the secondary side electromagnetic coil 2 facing the primary side electromagnetic coil 7 at the time of charging corresponding to the positions of the positioning electromagnet 4 and the gap adjusting electromagnet 6, respectively. Magnetic body 5 for
When the primary side electromagnetic coil 7 and the secondary side electromagnetic coil 2 approach each other to some extent, the positioning electromagnet 4 and the gap adjusting electromagnet 6 are energized to correspond to the positioning magnetic body 3 and the gap adjusting magnetic body. A magnetic attraction force is generated between the primary side electromagnetic coil 7 and the secondary side electromagnetic coil 2 via the positioning electromagnet 4 and the gap adjusting electromagnet 6 using the electromagnetic attraction force. And a gap between the primary side electromagnetic coil 7 and the secondary side electromagnetic coil 2 by the gap adjusting electromagnet 6 and the gap adjusting magnetic body 5 at the same time. Can be held face-to-face at a distance that can maintain high power supply efficiency, so that the vehicle 1 can be held at a predetermined position (in the X, Y, and Z directions) with relatively high accuracy without having to stop the vehicle 1 at a strict position when charging. Predetermined positioning position A) a primary electromagnetic coil 7, and the secondary electromagnetic coil 2 can be set.

また、本実施の形態に係る非接触給電装置は、従来のように駆動機構等によって１次側電磁コイルと２次側電磁コイル２とをあまり厳密に位置合わせしなくても、１次側電磁コイル７と２次側電磁コイル２とをある程度近づけたところで、位置決め用電磁石４とギャップ調整用電磁石６への通電を開始して発生する電磁吸着力により、自動的に、１次側電磁コイル７と２次側電磁コイル２とを位置決め位置まで案内（移動）しつつ位置決め位置に吸着保持させることができる構成であるので、従来のような２次側電磁コイルの位置情報（Ｘ，Ｙ，Ｚ方向の位置情報など）を取得するための複雑で高価な装置や、位置合わせのために１次側電磁コイル（或いは２次側電磁コイル）を移動させるための複雑で大型の高価な装置（リニアガイド装置やボールスクリュウ機構などの直動機構やその駆動源（電動モータ、油圧や空気圧などを利用した流体圧アクチュエータなど））を不要とすることができるため、構成の簡略化、装置の小型軽量化、低コスト化等を図ることができる。   In addition, the non-contact power feeding device according to the present embodiment is configured so that the primary side electromagnetic coil and the secondary side electromagnetic coil 2 are not strictly aligned by a drive mechanism or the like as in the prior art. When the coil 7 and the secondary electromagnetic coil 2 are brought close to each other to some extent, the primary electromagnetic coil 7 is automatically generated by the electromagnetic attracting force generated by starting energization of the positioning electromagnet 4 and the gap adjusting electromagnet 6. And the secondary electromagnetic coil 2 can be attracted and held at the positioning position while being guided (moved) to the positioning position. Therefore, the position information (X, Y, Z) of the secondary electromagnetic coil as in the prior art is used. Complicated and expensive device for acquiring direction position information, etc., and complex and large expensive device for moving the primary side electromagnetic coil (or secondary side electromagnetic coil) for alignment (linear Guide device A linear motion mechanism such as a ball screw mechanism and its drive source (electric motor, fluid pressure actuator using hydraulic pressure, air pressure, etc.) can be eliminated, simplifying the configuration, reducing the size and weight of the device, and reducing Cost can be reduced.

そして、本実施の形態に係る非接触給電装置は、通電停止により簡単に電磁吸着力を消失させることができるため、簡単に１次側電磁コイル７と２次側電磁コイル２との接合状態を解放して両者を離間させることが可能である。   And since the non-contact electric power feeder which concerns on this Embodiment can lose | disappear electromagnetic attracting force easily by energization stop, the joining state of the primary side electromagnetic coil 7 and the secondary side electromagnetic coil 2 is easily made. It is possible to release and separate them.

このように、本実施の形態に係る非接触給電装置によれば、簡単かつ安価な構成としながら、地上側に配設される１次側電磁コイル７と、車両側に搭載される２次側電磁コイル２と、を、迅速かつ良好に位置合わせしつつ所定間隔で接離可能に対面保持させることができる。   As described above, according to the non-contact power feeding device according to the present embodiment, the primary side electromagnetic coil 7 disposed on the ground side and the secondary side mounted on the vehicle side, while having a simple and inexpensive configuration. The electromagnetic coil 2 can be held face-to-face so as to be contacted and separated at a predetermined interval while aligning quickly and satisfactorily.

ところで、本実施の形態では、符号４（位置決め用電磁石）と符号６（ギャップ用電磁石）を電磁石として、符号３（位置決め用磁性体）と符号５（磁性体）を磁性体として説明したが、これに限定されるものではなく、符号４（或いは符号３）と符号６（或いは符号５）を磁性体とし、符号３（或いは符号４）と符号５（或いは符号６）を電磁石として構成することができる。   By the way, in this Embodiment, although the code | symbol 4 (positioning electromagnet) and the code | symbol 6 (gap electromagnet) were used as an electromagnet, the code | symbol 3 (positioning magnetic body) and the code | symbol 5 (magnetic body) were demonstrated as a magnetic body, However, the present invention is not limited to this, and code 4 (or code 3) and code 6 (or code 5) are made of a magnetic material, and code 3 (or code 4) and code 5 (or code 6) are made of an electromagnet. Can do.

また、本実施の形態では、２次側電磁コイル２を車両１の側面に取り付けた場合について例示したが、本発明はこれに限定されるものではなく、車両１の前面、後面、すなわち１次側電磁コイル７と２次側電磁コイル２との対向面が略垂直な方向に沿った面に取り付けることができる他、車両１の下面や上面に配設する構成とすることも可能である。   Further, in the present embodiment, the case where the secondary electromagnetic coil 2 is attached to the side surface of the vehicle 1 is illustrated, but the present invention is not limited to this, and the front surface, rear surface, that is, the primary surface of the vehicle 1 is not limited thereto. The facing surface of the side electromagnetic coil 7 and the secondary electromagnetic coil 2 can be attached to a surface along a substantially vertical direction, and can also be arranged on the lower surface or the upper surface of the vehicle 1.

本実施の形態では、一対の位置決め用電磁石４と、一対のギャップ調整用電磁石６と、を設け、これらに対応して、一対の位置決め用磁性体３と、一対のギャップ調整用磁性体５と、を設けた場合を例示したが、本発明はこれに限定されるものではなく、所定に位置決め可能で、かつギャップ（距離Ｘ）を所定に維持可能であれば、電磁石や磁性体の数や配置は適宜に変更し得るものである。   In the present embodiment, a pair of positioning electromagnets 4 and a pair of gap adjusting electromagnets 6 are provided, and correspondingly, the pair of positioning magnetic bodies 3 and the pair of gap adjusting magnetic bodies 5 However, the present invention is not limited to this, and the number of electromagnets and magnetic materials can be determined as long as the positioning can be performed in a predetermined manner and the gap (distance X) can be maintained in a predetermined manner. The arrangement can be changed as appropriate.

また、位置決め用電磁石４の突出長さ（突出量）を管理することで、位置決め用電磁石４にギャップ調整用電磁石６の有するギャップ（距離Ｘ）を保持するための機能を兼ねさせることも可能である。   Further, by managing the protrusion length (protrusion amount) of the positioning electromagnet 4, it is possible to make the positioning electromagnet 4 also have a function for holding the gap (distance X) of the gap adjusting electromagnet 6. is there.

更に、位置決め用電磁石４或いはギャップ調整用電磁石６の一方に通電せず或いは電磁石としない構成として、位置決め用電磁石４或いはギャップ調整用電磁石６の一方には磁気吸着力を生じさせないような構成とすることもできる。   Further, one of the positioning electromagnet 4 and the gap adjusting electromagnet 6 is not energized or is not configured as an electromagnet, so that one of the positioning electromagnet 4 and the gap adjusting electromagnet 6 does not generate a magnetic attractive force. You can also.

以上で説明した実施の形態は、本発明を説明するための例示に過ぎず、本発明の要旨を逸脱しない範囲内において、種々変更を加え得ることは可能である。   The embodiment described above is merely an example for explaining the present invention, and various modifications can be made without departing from the gist of the present invention.

１ 車両
２ 受電側電磁コイル（２次側電磁コイル）
３ 位置決め用磁性体
４ 位置決め用電磁石
５ 磁性体
６ ギャップ用電磁石
７ 給電側電磁コイル（１次側電磁コイル）
８ ハンドリング装置
１１Ａ フレーム要素
１１Ｂ フレーム要素
２０ アーム機構
1 vehicle 2 power receiving side electromagnetic coil (secondary side electromagnetic coil)
3 Magnetic body for positioning 4 Electromagnet for positioning 5 Magnetic body 6 Electromagnet for gap 7 Feeding side electromagnetic coil (primary side electromagnetic coil)
8 Handling Device 11A Frame Element 11B Frame Element 20 Arm Mechanism

Claims (3)

地上側に配設される給電側電磁コイルから、車両側に配設される受電側電磁コイルへ非接触で電力を供給して車載のバッテリを充電するための非接触給電装置のコイル位置決め保持装置であって、
給電側電磁コイル或いは受電側電磁コイルの少なくとも一方に略一体的に取り付けられる電磁石と、当該電磁石に対応して他方に取り付けられる磁性体と、を介して発生される電磁吸着力の作用によって、給電側電磁コイルと、受電側電磁コイルと、を、所定の位置決め位置へ案内すると共に所定間隔で対面保持させることを特徴とする非接触給電装置のコイル位置決め保持装置。 A coil positioning and holding device for a non-contact power feeding device for charging electric power from a power feeding side electromagnetic coil disposed on the ground side to a power receiving side electromagnetic coil disposed on the vehicle side in a non-contact manner. Because
Power is fed by the action of electromagnetic attraction generated through an electromagnet attached to at least one of the power supply side electromagnetic coil or the power reception side electromagnetic coil and a magnetic body attached to the other corresponding to the electromagnet. A coil positioning and holding device for a non-contact power feeding device, wherein a side electromagnetic coil and a power receiving side electromagnetic coil are guided to a predetermined positioning position and held face-to-face at a predetermined interval. 前記磁性体は、電磁石に対応する所定領域の周囲が非磁性体により覆われて配設されていると共に、対応する電磁石の先端を受け入れる凹部であって底部から開口端に向けて拡張された凹部を有することを特徴とする請求項１に記載の非接触給電装置のコイル位置決め保持装置。   The magnetic body is disposed so that a predetermined area corresponding to the electromagnet is covered with a non-magnetic body, and is a recess that receives the tip of the corresponding electromagnet and extends from the bottom toward the open end. The coil positioning and holding device of the non-contact power feeding device according to claim 1, wherein 前記電磁石の突出量によって前記所定間隔が調整されることを特徴とする請求項１または請求項２に記載の非接触給電装置のコイル位置決め保持装置。
The coil positioning and holding device of the non-contact power feeding device according to claim 1, wherein the predetermined interval is adjusted by a protruding amount of the electromagnet.
JP2010056915A 2010-03-15 2010-03-15 Coil positioning and holding device for non-contact power feeding device Expired - Fee Related JP5496718B2 (en)

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JP7365842B2 (en) 2019-10-08 2023-10-20 Ｓｗｃｃ株式会社 Contactless power supply system
WO2021151902A1 (en) * 2020-01-27 2021-08-05 Ocado Innovation Limited Apparatus and method for charging a load handling device

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