JP6257924B2 - Feed coil unit - Google Patents

Feed coil unit Download PDF

Info

Publication number
JP6257924B2
JP6257924B2 JP2013111687A JP2013111687A JP6257924B2 JP 6257924 B2 JP6257924 B2 JP 6257924B2 JP 2013111687 A JP2013111687 A JP 2013111687A JP 2013111687 A JP2013111687 A JP 2013111687A JP 6257924 B2 JP6257924 B2 JP 6257924B2
Authority
JP
Japan
Prior art keywords
case
coil
cover
coil body
buffer plate
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.)
Active
Application number
JP2013111687A
Other languages
Japanese (ja)
Other versions
JP2014233107A (en
Inventor
茂生 森
茂生 森
真之 片岡
真之 片岡
大樹 小松
大樹 小松
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Priority to JP2013111687A priority Critical patent/JP6257924B2/en
Priority to PCT/JP2014/064145 priority patent/WO2014192816A1/en
Publication of JP2014233107A publication Critical patent/JP2014233107A/en
Application granted granted Critical
Publication of JP6257924B2 publication Critical patent/JP6257924B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/124—Detection or removal of foreign bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • 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
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/34—Plug-like or socket-like devices specially adapted for contactless inductive charging of electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Landscapes

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

Description

本発明は、給電コイルユニットに係り、例えば、電気自動車又はプラグインハイブリッド自動車（ＰＨＶ）等のような走行可能な車輌に搭載された電池の充電電力を供給する非接触式の給電コイルユニットに関する。   The present invention relates to a power supply coil unit, and more particularly to a non-contact type power supply coil unit that supplies charging power of a battery mounted on a travelable vehicle such as an electric vehicle or a plug-in hybrid vehicle (PHV).

一般に、地上に設置した充電装置のプラグを車輌のコネクタに接続して、車輌に搭載された電池を充電するようにしている。このようなプラグイン式に代えて、地上に設置した電源から非接触で車輌の充電装置に電力を供給する非接触給電装置が特許文献１に記載されている。これによれば、道路等に１次コイルを配設し、車輌の床面に２次コイルを配設し、それら１次と２次のコイルの相互誘導によって地上に設けた電源から車輌に搭載した充電装置に電力を供給する非接触給電装置が提案されている。   Generally, a charging device plug installed on the ground is connected to a connector of a vehicle to charge a battery mounted on the vehicle. In place of such a plug-in type, Patent Document 1 discloses a non-contact power feeding device that supplies power to a vehicle charging device in a non-contact manner from a power source installed on the ground. According to this, a primary coil is disposed on a road or the like, a secondary coil is disposed on the floor of the vehicle, and the vehicle is mounted on a vehicle from a power source provided on the ground by mutual induction of the primary and secondary coils. There has been proposed a non-contact power feeding device that supplies power to the charging device.

同文献に記載の非接触給電装置に用いられる１次コイルは、ベース部とカバー部からなる八角形の平板箱状に形成された容器内に１次コイルである平板状のコイル体を収容して給電コイルユニットを構成し、給電コイルユニットを道路に設置又は埋設して車輌の２次コイルに非接触で給電するようにしている。このような非接触給電に用いられる給電コイルユニットは、誤って車輌が乗り上げることを考慮して、耐荷重性能を持たせる必要があるが、相互誘導を妨げないようにするため、金属などの強度部材を用いることができない。   The primary coil used in the non-contact power feeding device described in the same document accommodates a flat coil body, which is a primary coil, in a container formed in an octagonal flat plate box shape including a base portion and a cover portion. Thus, a power feeding coil unit is configured, and the power feeding coil unit is installed or buried in the road so that the secondary coil of the vehicle is fed in a non-contact manner. The power supply coil unit used for such non-contact power supply needs to have load-bearing performance in consideration of the vehicle getting on by mistake, but in order not to interfere with mutual induction, the strength of metal etc. The member cannot be used.

そこで、同文献に記載の給電コイルユニットは、ベース部とカバー部をそれぞれレジンコンクリートにより形成し、ベース部とカバー部により形成された箱状のスペース内にコイル体を収容し、収容スペース内に形成されるすき間に詰め物を充填して、耐荷重性能を持たせる構造が提案されている。この充填材としては、発泡材、軽量化コンクリ材、アルミ材、低収縮性樹脂、等が例示されている。   Therefore, in the feeding coil unit described in the same document, the base part and the cover part are respectively formed of resin concrete, the coil body is accommodated in a box-shaped space formed by the base part and the cover part, There has been proposed a structure in which a filling material is filled with a gap between the formed gaps to provide load bearing performance. Examples of the filler include foamed materials, lightweight concrete materials, aluminum materials, and low shrinkage resins.

特開２０１２−８９６１８号公報JP 2012-89618 A

しかし、特許文献１のように、すき間を充填材で埋める場合、充填材の硬化時間、膨張、収縮を考慮して充填量を管理しなければならない。つまり、充填量が少ないと、すき間が残って所定の耐荷重性能を持たせることができない。また、充填量が多すぎると、ベース部とカバー部が膨張して却って耐荷重性能が低下し、あるいは防水性が低下する等の問題が起こり得る。   However, when the gap is filled with a filler as in Patent Document 1, the filling amount must be managed in consideration of the curing time, expansion, and contraction of the filler. That is, when the filling amount is small, a gap remains and a predetermined load resistance performance cannot be obtained. On the other hand, if the filling amount is too large, the base part and the cover part may expand, which may cause problems such as reduced load-bearing performance or reduced waterproofness.

本発明が解決しようとする課題は、充填材を用いずに耐荷重性能を確保することができる構造の非接触給電装置の給電コイルユニットを提供することにある。   The problem to be solved by the present invention is to provide a feeding coil unit of a non-contact power feeding device having a structure capable of ensuring load bearing performance without using a filler.

上記の課題を解決するため、本発明の給電コイルユニットは、上面が開口されたケースと、該ケースの開口を覆う樹脂製のカバーと、前記ケースと前記カバーにより形成される空間内に収容されたコイル体と、前記コイル体に接続されて外部に引き出された電源ケーブルとを備え、少なくとも前記コイル体と前記ケースとの間に形成されるすき間に、複数の穴が形成された樹脂製のバッファプレートを挟み込んでなることを特徴とする。   In order to solve the above problems, a feeding coil unit of the present invention is accommodated in a case having an upper surface opened, a resin cover that covers the opening of the case, and a space formed by the case and the cover. A coil body and a power cable connected to the coil body and drawn to the outside, and at least a gap formed between the coil body and the case is made of a resin having a plurality of holes It is characterized by sandwiching a buffer plate.

本発明によれば、複数の穴が形成された樹脂製のバッファプレートをコイル体とケースとの間のすき間に挟み込んだことから、車輌が給電コイルユニットに乗り上げてカバーに集中的な荷重が加わっても、バッファプレートによってカバー及びコイル体などの構成部品の撓みが抑制される。これにより、車輌が乗り上げた際の荷重が特定の部品に集中することなく、カバー、コイル体、バッファープレート及びケースに分散され、構成部品の損傷を防止することができる。その結果、給電コイルユニットの信頼性を向上するだけでなく、各構成部品の材料及び構造の設計の自由度を得ることができる。   According to the present invention, since the resin buffer plate having a plurality of holes is sandwiched between the coil body and the case, the vehicle rides on the power feeding coil unit and a concentrated load is applied to the cover. Even so, the buffer plate suppresses the bending of the components such as the cover and the coil body. As a result, the load when the vehicle rides on is distributed to the cover, the coil body, the buffer plate, and the case without concentrating on specific parts, and damage to the components can be prevented. As a result, not only the reliability of the feeding coil unit can be improved, but also the degree of freedom in designing the material and structure of each component can be obtained.

ここで、バッファプレートは、高い靭性を有するＰＣ系の樹脂が好ましい。また、バッファプレートの複数の穴は、矩形の穴を格子状に配列して形成することが好ましい。これによれば、内部の構成部品の配置に応じて、バッファプレートの格子穴の連結部を切断することにより、所要の形状に合わせることができる。また、格子状の穴の形状及び大きさを任意に変えることにより、バッファプレートに弾性を持たせることができる。   Here, the buffer plate is preferably a PC-based resin having high toughness. The plurality of holes in the buffer plate are preferably formed by arranging rectangular holes in a lattice pattern. According to this, according to arrangement | positioning of an internal component, it can match | combine with a required shape by cut | disconnecting the connection part of the lattice hole of a buffer plate. Further, the buffer plate can be made elastic by arbitrarily changing the shape and size of the lattice holes.

本発明のコイル体は、平板状のコアを有するボビンにコイルを巻回して形成され、ボビンの縁部をケースの底面に形成された台座の上面に固定する構造を採用することができる。この場合、コイル体がケースの底面に対して台座の高さ分だけ浮いた状態で固定されるから、バッファプレートの肉厚を台座の高さに応じた厚みにすることが好ましい。また、ケースは、アルミニウムなどの常磁性体（非磁性体）の金属で形成するのが好ましい。   The coil body of the present invention can be formed by winding a coil around a bobbin having a flat core and fixing the edge of the bobbin to the upper surface of a pedestal formed on the bottom surface of the case. In this case, since the coil body is fixed to the bottom surface of the case while being floated by the height of the pedestal, the thickness of the buffer plate is preferably set to a thickness corresponding to the height of the pedestal. The case is preferably formed of a paramagnetic (nonmagnetic) metal such as aluminum.

本発明によれば、充填材を用いずに耐荷重性能を確保することができる構造の非接触給電装置の給電コイルユニットを提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the feed coil unit of the non-contact electric power feeder of the structure which can ensure load bearing performance, without using a filler can be provided.

本発明の給電コイルユニットの一実施例の分解斜視図である。It is a disassembled perspective view of one Example of the feed coil unit of this invention. 図１の実施例の組立体の内部構成を示す断面図である。It is sectional drawing which shows the internal structure of the assembly of the Example of FIG. 図１の実施例の部分断面図である。It is a fragmentary sectional view of the Example of FIG.

以下、本発明の給電コイルユニットの一実施例を説明する。本実施例は、例えば、電気自動車又はプラグインハイブリッド自動車（ＰＨＶ）等のような走行可能な車輌に搭載された電池に充電電力を供給する非接触式の給電コイルユニットに関する。車両に搭載された電池を充電する非接触式充電システムは、例えば、車庫あるいは駐車場に設置された充電電源に１次コイルである給電コイルユニットを接続し、給電コイルユニットに相互誘導可能な範囲内に車輌の床面に設けられた２次コイルを位置させ、それら１次コイル及び２次コイル間の相互誘導によって、地上の充電電源から車輌に搭載された電池を充電するように形成できる。この場合において、例えば、地上に設置した充電電源は、商用周波数の電圧をインバータにより変換して比較的高い周波数の電流（以下、高周波電流という。）を給電コイルユニットに供給し、車両側では２次コイルに誘導された高周波電流を整流器で整流して電池を充電する非接触式充電システムを構成することができる。   Hereinafter, an embodiment of the feeding coil unit of the present invention will be described. The present embodiment relates to a non-contact power supply coil unit that supplies charging power to a battery mounted on a vehicle that can travel, such as an electric vehicle or a plug-in hybrid vehicle (PHV). A non-contact charging system for charging a battery mounted on a vehicle is, for example, a range in which a feeding coil unit, which is a primary coil, is connected to a charging power source installed in a garage or a parking lot and can be mutually guided to the feeding coil unit. A secondary coil provided on the floor of the vehicle is positioned inside, and a battery mounted on the vehicle can be charged from a ground charging power source by mutual induction between the primary coil and the secondary coil. In this case, for example, a charging power source installed on the ground converts a commercial frequency voltage by an inverter and supplies a relatively high frequency current (hereinafter referred to as a high frequency current) to the feeding coil unit. A non-contact charging system that charges the battery by rectifying the high-frequency current induced in the secondary coil with a rectifier can be configured.

このような非接触式充電システムに用いられる給電コイルユニットは、図１及び図２に示すように、ケース１と、ケース１の上面開口を覆うカバー２と、ケース１とカバー２とで形成される空間に収容されるコイル体３とを備えて構成される。ケース１は、本実施例では常磁性体であるアルミニウムで形成され、平板状の底板１１の周縁部に起立して環状に形成された壁体１２と、底板１１の周縁を壁体１２の外側まで張り出して形成されたフランジ１３と、壁体１２に形成されたケーブル貫通孔１４と、ケーブル貫通孔１４から引き出された電源ケーブル４を支持固定するケーブル支持板５を備えて形成されている。また、壁体１２の頂部には、壁体１２に沿って環状のパッキン溝１１ａが形成され、パッキン溝１１ａには環状のＯリングパッキン１０が装着されるようになっている。   As shown in FIGS. 1 and 2, the power feeding coil unit used in such a non-contact charging system is formed of a case 1, a cover 2 that covers the upper surface opening of the case 1, and the case 1 and the cover 2. And a coil body 3 accommodated in a space. The case 1 is made of aluminum, which is a paramagnetic material in this embodiment, and has a wall body 12 that is formed in an annular shape standing on the peripheral edge of the flat bottom plate 11, and the peripheral edge of the bottom plate 11 is outside the wall body 12. And a cable support plate 5 that supports and fixes the power cable 4 drawn from the cable through hole 14. An annular packing groove 11a is formed at the top of the wall body 12 along the wall body 12, and an annular O-ring packing 10 is attached to the packing groove 11a.

ケーブル支持板５及び底板１１の底面（内面）１１ａには、電源ケーブル４を固定するケーブル受け台１８と、ケーブル押え金具１９がそれぞれ設けられている。そして、ケーブル押え金具１９をケーブル受け台１８にネジ２０で固定して、電源ケーブル４を挟持して固定する。なお、ケーブル貫通孔１４と電源ケーブル４との隙間は、図示していないパッキン等により防水される。   On the bottom surface (inner surface) 11 a of the cable support plate 5 and the bottom plate 11, a cable cradle 18 for fixing the power cable 4 and a cable retainer 19 are provided. Then, the cable presser bracket 19 is fixed to the cable cradle 18 with screws 20, and the power cable 4 is clamped and fixed. The gap between the cable through hole 14 and the power cable 4 is waterproofed by packing or the like not shown.

カバー２は、例えば、磁性を有しない樹脂により矩形状に形成され、平板状の天板２１の周縁にケース１の壁体１２の外周側に被せる覆い部２２が垂下して形成されている。また、天板２１には、ケース１のケーブル支持板５に合わせてケーブル４の引出し部を覆うケーブルカバー部２３が形成され、これに合わせて覆い部２２にケーブルカバー覆い部２２aが形成されている。また、カバー２の覆い部２２は、ケース１のフランジ１３の上面にまで伸延して形成されている。そして、フランジ１３に適宜分散して設けられた貫通孔１６に対応する位置の覆い部２２に厚肉部２２ｂが形成され、厚肉部２２ｂに袋状のネジ孔２２ｃが穿設されている。そして、ケース１の壁体１２の外周側にカバー２を被せた状態で、ケース１の貫通孔１６からボルトなどの締結部材１６aを挿通して、ネジ孔２２ｃにネジ込むことによりカバー２をケース１に固定するようになっている。また、ケーブルカバー覆い部２２aに形成されたケーブル引出用の半円弧状の孔にリング状パッキン１０を圧入して、防水するようになっている。   The cover 2 is formed, for example, in a rectangular shape using a resin that does not have magnetism, and a cover 22 that covers the outer peripheral side of the wall 12 of the case 1 is suspended from the periphery of the flat top plate 21. The top plate 21 is formed with a cable cover portion 23 that covers the lead-out portion of the cable 4 in accordance with the cable support plate 5 of the case 1, and a cable cover cover portion 22 a is formed in the cover portion 22 in accordance with this. Yes. Further, the cover portion 22 of the cover 2 is formed to extend to the upper surface of the flange 13 of the case 1. And the thick part 22b is formed in the cover part 22 of the position corresponding to the through-hole 16 provided in the flange 13 by disperse | distributing suitably, and the bag-like screw hole 22c is drilled in the thick part 22b. Then, with the cover 2 covered on the outer peripheral side of the wall body 12 of the case 1, the fastening member 16 a such as a bolt is inserted from the through hole 16 of the case 1 and screwed into the screw hole 22 c. It is fixed to 1. Further, the ring-shaped packing 10 is press-fitted into a semicircular arc-shaped hole formed in the cable cover covering portion 22a for waterproofing.

一方、コイル体３は、図１及び図３に示すように、磁性体からなる平板状のコア３１を絶縁部材３２で挟み込んで形成した平板状のボビン３３を有して形成されている。そして、ボビン３３の中央部の外周の一定範囲にコイル導体３４を巻回して形成されている。なお、ボビン３３の表面にはコイル導体３４を装着する溝３３ａが複数形成されている。コイル導体３４が巻回されていないボビン３３の両側縁部に、複数の貫通孔３３ｂが穿設されている。この貫通孔３３ｂに対応させて、ケース１の底板１１の底面（内面）１１ａに形成された台座１７の上面にネジ孔１７ａが形成されている。そして、ボビン３３の貫通孔３３ｂから図示していないボルトを台座１７のネジ孔１７aにねじ込んで、コイル体３をケース１に固定するようになっている。また、コイル体３の図１において左奥側に形成されるスペースに制御ユニット６が配置され、コイル体３と制御ユニット６の上に透明な樹脂フィルム７が配置されている。   On the other hand, as shown in FIGS. 1 and 3, the coil body 3 is formed with a flat bobbin 33 formed by sandwiching a flat core 31 made of a magnetic material with an insulating member 32. The coil conductor 34 is wound around a predetermined range on the outer periphery of the central portion of the bobbin 33. A plurality of grooves 33 a for mounting the coil conductors 34 are formed on the surface of the bobbin 33. A plurality of through holes 33b are formed in both side edges of the bobbin 33 around which the coil conductor 34 is not wound. A screw hole 17 a is formed on the upper surface of the base 17 formed on the bottom surface (inner surface) 11 a of the bottom plate 11 of the case 1 so as to correspond to the through hole 33 b. Then, a bolt (not shown) is screwed into the screw hole 17 a of the pedestal 17 from the through hole 33 b of the bobbin 33, and the coil body 3 is fixed to the case 1. Further, the control unit 6 is disposed in a space formed on the left back side of the coil body 3 in FIG. 1, and a transparent resin film 7 is disposed on the coil body 3 and the control unit 6.

ここで、図１に分解斜視図で示した給電コイルユニットの組み立てについて説明する。組み立てられた給電コイルユニットは、図２の断面図に示す構造になる。まず、ケース１にバッファプレート８を組み付ける。バッファプレート８は、ケース１の図において右手前の壁体１２に沿って、台座１７の内側に挿入する。次いで、コイル体３をバッファプレート８の上面に載置するとともに、ボビン３３の両側縁を台座１７の上面に載置して、図示していないボルトを貫通孔３３ａに挿入し、台座１７のネジ孔１７ａにねじ込んで、コイル体３をケース１に固定する。次に、コイル体３のコイル導体３４に接続され、かつ電源ケーブル４に接続された制御ユニット６を、コイル体３に並べてケース１の図において左奥側に収容する。なお、電源ケーブル４は、ケース１の壁体１２に形成されたケーブル貫通孔１４からケース１内に挿入して制御ユニット６に接続し、さらに制御ユニット６とコイル導体３４を接続しておく。また、電源ケーブル４は、ケーブル受け台１８に載置し、ケーブル押え金具１９をネジ２０でケーブル受け台１８に固定しておく。そして、コイル体３と制御ユニット６の上面に樹脂フィルム７を載置してカバー２を被せる。すなわち、カバー２の覆い部２２をケース１の壁体１２の外周に被せるとともに、ケーブルカバー覆い部２２ａの位置をケーブル支持板５に合わせて、ケース１に被せる。そして、ケース１のフランジ１３の貫通穴１６から図示していないボルトを、カバー２の覆い部２２に穿設されたネジ孔２２ｂにねじ込んで固定する。このとき、ケース１の壁体１２の頂面に形成されたパッキン溝１２ａに環状の例えばＯリングパッキン９を装着する。これにより、ケース１とカバー２により閉塞された空間に外部から水が浸入するのを防止することができる。   Here, the assembly of the feeding coil unit shown in the exploded perspective view in FIG. 1 will be described. The assembled feeding coil unit has a structure shown in the sectional view of FIG. First, the buffer plate 8 is assembled to the case 1. The buffer plate 8 is inserted inside the pedestal 17 along the wall 12 on the right front side in the drawing of the case 1. Next, the coil body 3 is placed on the upper surface of the buffer plate 8, both side edges of the bobbin 33 are placed on the upper surface of the pedestal 17, bolts (not shown) are inserted into the through holes 33 a, The coil body 3 is fixed to the case 1 by screwing into the hole 17a. Next, the control unit 6 connected to the coil conductor 34 of the coil body 3 and connected to the power cable 4 is arranged in the coil body 3 and accommodated on the left back side in the figure of the case 1. The power cable 4 is inserted into the case 1 through the cable through hole 14 formed in the wall 12 of the case 1 and connected to the control unit 6, and the control unit 6 and the coil conductor 34 are further connected. The power cable 4 is placed on the cable cradle 18, and the cable retainer 19 is fixed to the cable cradle 18 with screws 20. And the resin film 7 is mounted on the upper surface of the coil body 3 and the control unit 6, and the cover 2 is covered. In other words, the cover 22 of the cover 2 is placed on the outer periphery of the wall 12 of the case 1, and the position of the cable cover cover 22 a is aligned with the cable support plate 5 and is put on the case 1. Then, a bolt (not shown) is screwed into the screw hole 22 b formed in the cover portion 22 of the cover 2 from the through hole 16 of the flange 13 of the case 1 and fixed. At this time, an annular O-ring packing 9 is mounted in the packing groove 12 a formed on the top surface of the wall 12 of the case 1. Thereby, it is possible to prevent water from entering the space closed by the case 1 and the cover 2 from the outside.

ここで、本実施例の特徴部の構成について詳細に説明する。本発明は、コイル体３の下面とケース１の底面１１ａとの間のすき間に、複数の穴８ａが形成された樹脂製のバッファプレート８を挟み込んだことを特徴とする。バッファプレート８は、例えば、高い靭性を有するＰＣ系の樹脂により形成することが好ましい。そして、バッファプレート８の肉厚は、台座１７の高さに応じた厚みにすることが好ましい。つまり、本実施例では、コイル体３を固定するケース１の台座１７は、ネジ受け長さ（袋ネジ）を確保するために、台座１７の厚みが必要となり、台座１７の上面が底面１１よりも高い位置になる。そのため、台座１７の上面にコイル体３のボビン３３の側縁部を固定すると、コイル体３の下面とケース１の底面１１ａとの間にすき間が形成されてしまう。このようなすき間があると、カバー２の上面に荷重が加わったとき、カバー２及びコイル体３が撓んで変形する。このような変形を繰り返し受けると、カバー２及びコイル体３が損傷を受けるおそれがある。そこで、本実施例では、少なくともコイル体３とケース１の底面１１ａとの間に形成されるすき間に、複数の穴８ａが形成された樹脂製のバッファプレート８が挟み込みこまれている。   Here, the structure of the characteristic part of a present Example is demonstrated in detail. The present invention is characterized in that a resin-made buffer plate 8 in which a plurality of holes 8 a are formed is sandwiched between the lower surface of the coil body 3 and the bottom surface 11 a of the case 1. The buffer plate 8 is preferably formed of, for example, a PC-based resin having high toughness. The thickness of the buffer plate 8 is preferably set to a thickness corresponding to the height of the pedestal 17. That is, in this embodiment, the pedestal 17 of the case 1 to which the coil body 3 is fixed requires the thickness of the pedestal 17 in order to secure the screw receiving length (bag screw), and the upper surface of the pedestal 17 is higher than the bottom surface 11. Will be higher. Therefore, when the side edge portion of the bobbin 33 of the coil body 3 is fixed to the upper surface of the pedestal 17, a gap is formed between the lower surface of the coil body 3 and the bottom surface 11 a of the case 1. If there is such a gap, when a load is applied to the upper surface of the cover 2, the cover 2 and the coil body 3 are bent and deformed. If such deformation is repeatedly received, the cover 2 and the coil body 3 may be damaged. Therefore, in this embodiment, a resin buffer plate 8 in which a plurality of holes 8 a are formed is sandwiched between at least gaps formed between the coil body 3 and the bottom surface 11 a of the case 1.

これにより、バッファプレート８によって、コイル体３とケース１との間のすき間がなくなるから、車輌が給電コイルユニットに乗り上げてカバー２に集中的な荷重が加わっても、カバー２及びコイル体３などの構成部品の撓みを抑制して、損傷を防止することができる。また、車輌が乗り上げた際の荷重が特定の部品に集中することなく、カバー２、コイル体３、バッファープレート８及びケース１に分散されるから、構成部品の損傷を防止することができる。さらに、給電コイルユニットの信頼性を向上するだけでなく、各構成部品の材料及び構造の設計の自由度を得ることができる。   As a result, the gap between the coil body 3 and the case 1 is eliminated by the buffer plate 8, so that even if the vehicle rides on the power feeding coil unit and a concentrated load is applied to the cover 2, the cover 2, the coil body 3, etc. It is possible to prevent the component parts from being bent and prevent damage. Further, since the load when the vehicle rides on is distributed to the cover 2, the coil body 3, the buffer plate 8, and the case 1 without concentrating on specific parts, damage to the components can be prevented. Furthermore, not only can the reliability of the power supply coil unit be improved, but the degree of freedom in designing the material and structure of each component can be obtained.

さらに、図１のように、バッファプレート８に複数の穴８ａを矩形に形成し、格子状に配列することが好ましい。これによれば、内部の構成部品の配置に応じて、バッファプレート８の格子状の穴８ａの連結部８ｂを切断することにより、所要の形状に合わせることができる。また、格子状の穴８aの形状及び大きさを任意に変えることにより、バッファプレート８に弾性を持たせることができるから、外部から加えられた荷重の分散を効果的に行わせることができる。   Furthermore, as shown in FIG. 1, it is preferable to form a plurality of holes 8a in the buffer plate 8 in a rectangular shape and arrange them in a lattice pattern. According to this, according to arrangement | positioning of an internal component, it can match | combine with a required shape by cut | disconnecting the connection part 8b of the grid | lattice-like hole 8a of the buffer plate 8. FIG. Further, by arbitrarily changing the shape and size of the lattice-shaped holes 8a, the buffer plate 8 can be made elastic, so that the load applied from the outside can be effectively dispersed.

以上、本発明を実施例に基づいて説明したが、本発明はこれらに限定されるものではなく、本発明の主旨の範囲で変形又は変更された形態で実施することが可能であることは、当業者にあっては明白なことであり、そのような変形又は変更された形態が本願の特許請求の範囲に属することは当然のことである。   As described above, the present invention has been described based on the embodiments, but the present invention is not limited thereto, and can be implemented in a form that is modified or changed within the scope of the gist of the present invention. It will be apparent to those skilled in the art that such variations or modifications are within the scope of the claims.

上記の実施例では、ケース１をアルミニウム材で形成したが、他の金属部材で形成してもよい。また、電磁界の漏れが問題にならない場合は、樹脂により形成することができる。   In the above embodiment, the case 1 is formed of an aluminum material, but may be formed of other metal members. Moreover, when leakage of an electromagnetic field does not become a problem, it can form with resin.

１ ケース
２ カバー
３ コイル体
４ 電源ケーブル
６ 制御ユニット
７ 樹脂フィルム
８ バッファプレート
９ Ｏリングパッキン
１１ 底板
１２ 壁体
１３ フランジ
１６ 貫通孔
１７ 台座
２１ 天板
２２ 覆い部
３１ コア
３２ 絶縁部材
３３ ボビン
３４ コイル導体
DESCRIPTION OF SYMBOLS 1 Case 2 Cover 3 Coil body 4 Power cable 6 Control unit 7 Resin film 8 Buffer plate 9 O-ring packing 11 Bottom plate 12 Wall body 13 Flange 16 Through-hole 17 Base 21 Top plate 22 Cover part 31 Core 32 Insulation member 33 Bobbin 34 Coil conductor

Claims (2)

上面が開口されたケースと、該ケースの開口を覆う樹脂製のカバーと、前記ケースと前記カバーにより形成される空間内に収容されたコイル体と、前記コイル体に接続されて外部に引き出された電源ケーブルとを備え、少なくとも前記コイル体と前記ケースとの間に形成されるすき間に、複数の穴が形成されたＰＣ（ポリカーボネート）系樹脂以上の靱性を有する樹脂製のバッファプレートを挟み込んでなる給電コイルユニット。 A case having an upper surface opened, a resin cover covering the opening of the case, a coil body housed in a space formed by the case and the cover, and connected to the coil body and pulled out to the outside A resin buffer plate having a toughness equal to or higher than a PC (polycarbonate) resin in which a plurality of holes are formed, at least in a gap formed between the coil body and the case. A feeding coil unit. 前記コイル体は、平板状のコアを有してなるボビンにコイル導体を巻回して形成され、前記ボビンの縁部を前記ケースの底面に形成された台座の上面に固定され、
前記バッファプレートは、前記台座の高さに応じた肉厚に形成されていることを特徴とする請求項１に記載の給電コイルユニット。
The coil body is formed by winding a coil conductor around a bobbin having a flat core, and the edge of the bobbin is fixed to the upper surface of a base formed on the bottom surface of the case,
The feeding coil unit according to claim 1, wherein the buffer plate is formed with a thickness corresponding to the height of the pedestal.
JP2013111687A 2013-05-28 2013-05-28 Feed coil unit Active JP6257924B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013111687A JP6257924B2 (en) 2013-05-28 2013-05-28 Feed coil unit
PCT/JP2014/064145 WO2014192816A1 (en) 2013-05-28 2014-05-28 Power supply coil unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013111687A JP6257924B2 (en) 2013-05-28 2013-05-28 Feed coil unit

Publications (2)

Publication Number Publication Date
JP2014233107A JP2014233107A (en) 2014-12-11
JP6257924B2 true JP6257924B2 (en) 2018-01-10

Family

ID=51988839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013111687A Active JP6257924B2 (en) 2013-05-28 2013-05-28 Feed coil unit

Country Status (2)

Country Link
JP (1) JP6257924B2 (en)
WO (1) WO2014192816A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6496616B2 (en) * 2015-06-15 2019-04-03 矢崎総業株式会社 Coil unit
GB2560332A (en) * 2017-03-07 2018-09-12 Jaguar Land Rover Ltd Cover for wireless-charging unit
WO2019009241A1 (en) * 2017-07-05 2019-01-10 株式会社Ihi Coil device
DE102018007598A1 (en) * 2017-10-05 2019-04-11 Sew-Eurodrive Gmbh & Co Kg System for the contactless transmission of electrical energy to a mobile part arranged movably on a floor of a system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5502621B2 (en) * 2010-07-05 2014-05-28 パナソニック株式会社 Floor with contactless power supply function
WO2012090342A1 (en) * 2010-12-27 2012-07-05 パナソニック株式会社 Coil unit used in contactless power supply system
EP3185263A1 (en) * 2011-01-19 2017-06-28 Technova Inc. Contactless power transfer apparatus
WO2013001586A1 (en) * 2011-06-27 2013-01-03 トヨタ自動車株式会社 Power receiving device, power transmitting device, and power transmission system
US9431834B2 (en) * 2012-03-20 2016-08-30 Qualcomm Incorporated Wireless power transfer apparatus and method of manufacture
JP5118776B1 (en) * 2012-03-28 2013-01-16 パナソニック株式会社 Power supply device
WO2014119285A1 (en) * 2013-01-30 2014-08-07 パナソニック株式会社 Noncontact electric power transmission equipment

Also Published As

Publication number Publication date
JP2014233107A (en) 2014-12-11
WO2014192816A1 (en) 2014-12-04

Similar Documents

Publication Publication Date Title
US10404102B2 (en) Power feeding coil unit, wireless power feeding device and wireless power transmission device
JP6743432B2 (en) Coil device
JP5293851B2 (en) Coil unit and non-contact power supply system
JP6148552B2 (en) Coil unit
JP6257924B2 (en) Feed coil unit
JP2016103645A (en) Non-contact power supply device
KR20150015491A (en) Vehicle
US20160352153A1 (en) Coil unit and power supply system including the same
EP3076412B1 (en) Power-receiving device and power-transmitting device
US11211189B2 (en) Coil device
WO2019009241A1 (en) Coil device
JP6280698B2 (en) Feed coil unit
KR20160122919A (en) Transformer for obc of electric vehicle
JP6454941B2 (en) Non-contact power supply device and non-contact power supply system
WO2012102008A1 (en) Coil unit used in noncontact electric-power-supplying system
JP6780608B2 (en) Coil unit
JP2017183476A (en) Coil unit, wireless power supply device, wireless power reception device, and wireless power transmission device
JP6678324B2 (en) Coil device, non-contact power supply device, and non-contact power receiving device
JP6285810B2 (en) Coil unit in non-contact power feeder
JP6370564B2 (en) Power receiving unit and power supply system having the same
JP6231948B2 (en) Coil unit in non-contact power feeding device and method for grounding wire in coil unit
US20210316622A1 (en) Coil unit, moving object, power receiving device, and wireless power transmission system
WO2015045088A1 (en) Conductor arrangement structure for contactless power supply system
JP2017137701A (en) Car stop, coil unit, and power supply system having them

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160419

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170314

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170512

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170613

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170814

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170905

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171101

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20171114

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20171206

R150 Certificate of patent or registration of utility model

Ref document number: 6257924

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250