JP2008249046A - Wheel bearing with electric power transmission device - Google Patents

Wheel bearing with electric power transmission device Download PDF

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Publication number
JP2008249046A
JP2008249046A JP2007092148A JP2007092148A JP2008249046A JP 2008249046 A JP2008249046 A JP 2008249046A JP 2007092148 A JP2007092148 A JP 2007092148A JP 2007092148 A JP2007092148 A JP 2007092148A JP 2008249046 A JP2008249046 A JP 2008249046A
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wheel
transmission device
power transmission
fixed
connector
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JP2007092148A
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JP5085173B2 (en
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Toru Takahashi
亨 高橋
Hiroshi Isobe
浩 磯部
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NTN Corp
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NTN Corp
NTN Toyo Bearing Co Ltd
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Priority to JP2007092148A priority Critical patent/JP5085173B2/en
Priority to PCT/JP2008/000587 priority patent/WO2008129787A1/en
Publication of JP2008249046A publication Critical patent/JP2008249046A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheel bearing with an electric power transmission device capable of supplying electric power in a non-contact state between a rotating side and a fixed side, supplying electric power when rotation is stopped, and using the electric power supplied to the rotating side as various power sources for sensors. <P>SOLUTION: Double row rolling elements 5 are interposed between an outer member 1 being a fixed ring and an inner member 2 being a rotating ring. An electric power transmission device 21 for transmitting electric power in a non-contact state between the outer member 1 and the inner member 2 is provided. Connectors 31, 32 connected to the electric power transmission device 21 is provided to at least one of the fixed ring and the rotating ring. The electric power transmission device 21 includes, for example, a primary coil 22 installed in the fixed ring, and a secondary coil 24 installed in the rotating ring, and transmits electric power by electromagnetic induction by applying AC currents. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、回転輪と固定輪との間で非接触で電力の受け渡しを行う電力伝送装置を内蔵した電力伝送装置付車輪用軸受に関する。   The present invention relates to a wheel bearing with a power transmission device incorporating a power transmission device that transfers power in a non-contact manner between a rotating wheel and a fixed wheel.

近年、自動車の安定性向上のために、タイヤに異常が発生した時にその異常を検出し、必要に応じてドライバに警報を発するタイヤ異常検出装置の開発が盛んに行われている。例えば、タイヤの空気圧を監視するタイヤ空気圧監視装置(特許文献1)やタイヤの温度や摩耗量に基づいてタイヤの異常を検出するタイヤ異常検出装置などが挙げられる。また、タイヤ接地力を検出する手段においても、回転側に荷重センサを設ける構造が提案されている(特許文献5)。このように、回転側へセンサを設置する場合には、センサや送信機を駆動するための電力を回転側へ供給する必要がある。   2. Description of the Related Art In recent years, in order to improve the stability of automobiles, tire abnormality detection devices that detect abnormalities in tires and issue warnings to drivers as necessary have been actively developed. For example, a tire pressure monitoring device (Patent Document 1) that monitors tire pressure, a tire abnormality detection device that detects tire abnormality based on tire temperature and wear amount, and the like can be cited. In addition, a structure in which a load sensor is provided on the rotation side has also been proposed as means for detecting the tire contact force (Patent Document 5). As described above, when the sensor is installed on the rotation side, it is necessary to supply power for driving the sensor and the transmitter to the rotation side.

このような要望に応えるものとして、タイヤ内部に空気圧変動により形状変形を生じて発電を行う発電板を有するものが提案されている(例えば、特許文献1)。また、タイヤの回転側に電磁コイル、非回転側に磁界発生手段を設けたタイヤ電源供給装置が提案されている(例えば、特許文献2)。また、車輪用軸受に発電装置を組み込んだ車輪用軸受装置が提案されている(特許文献3)。また、軸受に非接触信号伝達機構を設けた非接触信号伝達機構付き軸受が提案されている(例えば、特許文献4)。その他、スリップリングや無線給電などの方法で回転側へ電力を供給する手段が挙げられる。
特開2006−329772号 特開2006‐232195号 特開2002‐055113号 特開2002‐130262号 特開2003‐246201号
In order to meet such a demand, there has been proposed one having a power generation plate that generates power by generating a shape deformation due to air pressure fluctuation in the tire (for example, Patent Document 1). In addition, a tire power supply device has been proposed in which an electromagnetic coil is provided on the tire rotation side and a magnetic field generating means is provided on the non-rotation side (for example, Patent Document 2). Further, a wheel bearing device in which a power generation device is incorporated in a wheel bearing has been proposed (Patent Document 3). A bearing with a non-contact signal transmission mechanism in which a non-contact signal transmission mechanism is provided on the bearing has been proposed (for example, Patent Document 4). In addition, there is a means for supplying power to the rotating side by a method such as slip ring or wireless power feeding.
JP 2006-329772 A JP 2006-232195 A JP 2002-055113 A JP 2002-130262 A JP 2003-246201 A

特許文献1のタイヤの空気圧変動による発電板の形状変形により発電を行うものでは、発電量が少なく、発電量を増やすには複数の発電板を設ける必要がある。そのため、組立性やコストの面で問題がある。例えば、複数の発電板を設けても、複数のセンサに電力を供給することは難しい。
特許文献2の構成では、軸受の外側に発電装置を設けており、全体が大きくなることでバネ下荷重が増加する。また、組立て性や発電装置のシール性が良いとも言えない。さらに、ホイールへの取付時に配線が邪魔になるという問題がある。
特許文献3の構成では、車輪用軸受で発電しているが、回転側への電力供給として利用されていない。
特許文献4のような通常の軸受に設置した場合は、回転側と固定側で電力の送受信ができても、そこからセンサ等へ配線することが困難である。
また、特許文献1〜3の構成では、いずれも回転中にしか電力を供給することができない。
その他、無線給電では、送信側と受信側の位置関係が重要となり、設計の自由度が狭くなるという問題がある。また、スリップリングを利用した場合、摩耗や配線の取り回しが問題となる。
In the case of generating power by deforming the shape of the power generation plate due to the change in tire air pressure in Patent Document 1, the amount of power generation is small, and it is necessary to provide a plurality of power generation plates to increase the power generation amount. Therefore, there are problems in terms of assembly and cost. For example, even if a plurality of power generation plates are provided, it is difficult to supply power to a plurality of sensors.
In the configuration of Patent Document 2, the power generation device is provided outside the bearing, and the unsprung load increases as the whole becomes larger. Moreover, it cannot be said that the assembling property and the sealing property of the power generation device are good. In addition, there is a problem that the wiring is obstructive when attached to the wheel.
In the configuration of Patent Document 3, power is generated by the wheel bearing, but it is not used as power supply to the rotating side.
When installed on a normal bearing as in Patent Document 4, even if power can be transmitted and received between the rotating side and the stationary side, it is difficult to wire from there to a sensor or the like.
Moreover, in the structure of patent documents 1-3, all can supply electric power only during rotation.
In addition, in the wireless power feeding, there is a problem that the positional relationship between the transmission side and the reception side is important, and the degree of freedom in design is narrowed. In addition, when a slip ring is used, wear and wiring are problematic.

この発明の目的は、回転側と固定側の間で電力供給を非接触で行うことができて、回転停止時にも電力供給でき、回転側へ供給した電力は、センサ類等の種々の電源として利用でき、また車両にコンパクトに電力伝送装置を設置でき、配線が容易に行えて組立性がよく、量産性に優れた電力伝送装置付車輪用軸受を提供することである。   The object of the present invention is that power can be supplied in a non-contact manner between the rotating side and the stationary side, and power can be supplied even when rotation is stopped. The power supplied to the rotating side can be used as various power sources such as sensors. It is an object to provide a wheel bearing with a power transmission device that can be used in a compact manner, can be installed in a vehicle in a compact manner, can be easily wired, is easy to assemble, and is excellent in mass productivity.

この発明の電力伝送装置付車輪用軸受は、複列の転走面が形成された固定輪と、この固定輪の転走面と対向する転走面を形成した回転輪と、対向する転走面間に介在した複列の転動体と、前記固定輪と前記回転輪間の端部を密封する密封装置とを備え、車体に対して車輪を回転自在に支持する車輪用軸受において、前記固定輪と前記回転輪の間で非接触で電力を伝達する電力伝送装置を設け、前記固定輪または前記回転輪の少なくても一方に、前記電力伝送装置に接続されたコネクタを有することを特徴とする。この固定輪または回転輪に設けるコネクタは、例えば差し込み接続型のものであって、互いに差し込み接続される一対のコネクタ対における片方のものであり、プラグ型およびソケット型のうちのいずれであっても良い。上記コネクタ対におけるもう片方のコネクタは、上記固定輪または回転輪に設けるコネクタに対して接続する配線側に設ける。   A wheel bearing with a power transmission device according to the present invention includes: a fixed wheel having a double row rolling surface; a rotating wheel having a rolling surface facing the rolling surface of the fixed wheel; In a wheel bearing comprising a double row rolling element interposed between surfaces and a sealing device for sealing an end portion between the fixed wheel and the rotating wheel, the wheel bearing rotatably supporting the wheel with respect to a vehicle body, the fixing A power transmission device that transmits power in a contactless manner between a wheel and the rotating wheel is provided, and at least one of the fixed wheel or the rotating wheel has a connector connected to the power transmission device. To do. The connector provided on the fixed wheel or the rotating wheel is, for example, a plug-and-connect type, and is one of a pair of connectors that are plugged and connected to each other, and can be either a plug type or a socket type. good. The other connector in the connector pair is provided on the wiring side connected to the connector provided on the fixed ring or the rotating ring.

この構成によると、固定輪と回転輪の間で電力を伝達する電力伝送装置を設けたため、固定側から回転側への電力供給が容易に行うことができる。電力伝送装置は、発電機と異なり、回転しなくても電力の供給が可能となる。そのため、タイヤなどに取り付けたセンサに必要な無線給電機能、電池、単体での発電機能、などを不要にできる。回転側に電池等を設置している場合には回転側への電力供給を行う必要がないため、例えば、回転側のセンサ出力等を固定側へ通信する機能として利用してもよい。また、固定輪または回転輪の少なくても一方にコネクタを設けたため、車輪用軸受と車体側の配線または車輪用軸受とタイヤやホイール側への配線が容易となる。車輪用軸受を車体やホイールに組み込んだ後でも配線できるため、組立てが容易になる。   According to this configuration, since the power transmission device that transmits power between the fixed wheel and the rotating wheel is provided, it is possible to easily supply power from the fixed side to the rotating side. Unlike the generator, the power transmission device can supply power without rotating. Therefore, a wireless power feeding function, a battery, a single power generation function, and the like necessary for a sensor attached to a tire or the like can be eliminated. When a battery or the like is installed on the rotation side, it is not necessary to supply power to the rotation side. Therefore, for example, the sensor output on the rotation side may be used as a function for communicating to the fixed side. Further, since the connector is provided on at least one of the fixed wheel or the rotating wheel, wiring on the wheel bearing and the vehicle body side or wiring on the wheel bearing and the tire or wheel side is facilitated. Wiring can be performed even after the wheel bearing is incorporated into the vehicle body or wheel, so that assembly is facilitated.

この発明において、前記電力伝送装置は、前記固定輪に設けられるコアに巻回された1次コイルと、回転輪に設けられるコアに巻回された2次コイルとでなり、前記1次コイルと前記2次コイルとで磁気回路を構成するものとしても良い。いわゆるロータリトランスとする。これにより、回転体である回転側輪を有する車輪用軸受に適した構造となる。   In this invention, the power transmission device includes a primary coil wound around a core provided on the fixed wheel and a secondary coil wound around a core provided on a rotating wheel, and the primary coil It is good also as what comprises a magnetic circuit with the said secondary coil. A so-called rotary transformer is used. Thereby, it becomes a structure suitable for the wheel bearing which has the rotation side wheel which is a rotary body.

前記1次コイルおよび前記2次コイルのいずれか一方または両方が、コイルを保護するための隔壁を有するものとしても良い。このように隔壁を設けることで、コイルを保護することができる。また、電力伝送装置の周辺にグリースがある状況では、グリースによるコイルの絶縁被覆の劣化を防ぐことができる。   One or both of the primary coil and the secondary coil may have a partition for protecting the coil. By providing the partition wall in this way, the coil can be protected. Further, in a situation where there is grease around the power transmission device, it is possible to prevent deterioration of the insulation coating of the coil due to the grease.

前記電力伝送装置における磁気回路は、前記固定輪の一部および前記回転輪の一部のどちらか一方または両方を含むものとしても良い。磁気回路が固定輪の一部または回転輪の一部を含むように構成すれば、磁気回路を構成し易く、ロータコアやステータコアの形状を簡素化できる。   The magnetic circuit in the power transmission device may include one or both of a part of the fixed wheel and a part of the rotating wheel. If the magnetic circuit is configured to include a part of the fixed ring or a part of the rotating wheel, the magnetic circuit can be easily configured, and the shapes of the rotor core and the stator core can be simplified.

前記コネクタは、このコネクタに対して接続されるコネクタとの差し込み接続状態で防水性を有するものとしても良い。このように防水性を持たせれば、塩泥水を浴びるような環境が悪い条件でも使用可能となる。   The connector may be waterproof when plugged into a connector connected to the connector. If waterproofing is provided in this way, it can be used even under conditions in which the environment is exposed to salt mud.

前記コネクタは、前記回転輪または前記固定輪に固定しても良い。コネクタを回転輪または固定輪に固定すれば、ホイールなどの組立時に配線が邪魔にならず、タイヤ側や車体側への配線も容易に行える。   The connector may be fixed to the rotating wheel or the fixed wheel. If the connector is fixed to the rotating wheel or the fixed wheel, the wiring does not get in the way when the wheel is assembled, and wiring to the tire side or the vehicle body side can be easily performed.

タイヤやホイール側へ配線を連結するコネクタを、回転輪の内径部または回転輪に設けられたフランジに設けても良い。これによりタイヤやホイールへの給電が容易となる。また、コネクタが回転輪の内径部またはフランジに配置されることで、コネクタが周辺部品の邪魔とならず、配線も行い易い。   You may provide the connector which connects wiring to a tire or the wheel side in the flange provided in the internal diameter part of the rotating wheel, or the rotating wheel. This facilitates power supply to the tires and wheels. In addition, since the connector is disposed on the inner diameter portion or the flange of the rotating wheel, the connector does not interfere with peripheral components and wiring is easy.

前記固定輪および前記回転輪のいずれか一方または両方に、これら固定輪と回転輪の対向する周面から軸受外部に配線を出すための配線孔または配線溝を設けても良い。このような配線孔または配線溝を設けると、配線を外部に引き出すことが容易となり、また車輪用軸受に等速ジョイントを組み付けるときなどに、配線を断線することが防止される。   Either one or both of the fixed ring and the rotating ring may be provided with a wiring hole or a wiring groove for leading the wiring to the outside of the bearing from the peripheral surfaces of the fixed ring and the rotating ring facing each other. Providing such wiring holes or wiring grooves facilitates drawing the wiring to the outside, and prevents the wiring from being disconnected when a constant velocity joint is assembled to the wheel bearing.

前記配線孔または前記配線溝の一部をモールドしても良い。配線孔や配線溝の一部をモールドすることで、内部へ水等の異物が侵入することが防止できる。   A part of the wiring hole or the wiring groove may be molded. By molding a part of the wiring hole or the wiring groove, foreign matter such as water can be prevented from entering the inside.

この発明において、前記固定輪および前記回転輪のいずれか一方または両方に、伝達する電力の安定化を行う制御回路を設けても良い。この制御回路は、例えば、整流回路、レギュレータ、インバータ等を含む回路とされる。このような制御回路を設けることで安定した電力を供給することができる。   In this invention, you may provide the control circuit which stabilizes the electric power to transmit to either one or both of the said fixed wheel and the said rotating wheel. This control circuit is, for example, a circuit including a rectifier circuit, a regulator, an inverter, and the like. By providing such a control circuit, stable power can be supplied.

この発明の電力伝送装置付車輪用軸受は、固定輪と前記回転輪の間に電力伝送装置を設けたため、回転側と固定側の間で電力供給を非接触で行うことができて、回転側へ供給した電力は、タイヤの異常検出等のセンサ類等の種々の電源として利用できる。発電機を設けた場合と異なり、回転停止時にも電力供給できてセンサ類への電力供給に好ましい。また、車輪用軸受に電力伝送装置を組み込んでいるため、車両にコンパクトに電力伝送装置を設置でき、さらに前記電力伝送装置に接続されたコネクタを有するため、タイヤ側への配線がコネクタにより容易に行うことができて、組立性がよく、量産性に優れたものとなり、コスト低減が図れる。   In the wheel bearing with a power transmission device according to the present invention, since the power transmission device is provided between the fixed wheel and the rotating wheel, power can be supplied in a non-contact manner between the rotating side and the fixed side. The power supplied to can be used as various power sources such as sensors for detecting abnormality of the tire. Unlike the case where a generator is provided, power can be supplied even when rotation is stopped, which is preferable for supplying power to sensors. Moreover, since the power transmission device is incorporated in the wheel bearing, the power transmission device can be installed compactly in the vehicle, and since the connector connected to the power transmission device is provided, wiring to the tire side can be easily performed by the connector. It can be carried out, has good assemblability, is excellent in mass productivity, and can reduce costs.

この発明の一実施形態を図1ないし図3と共に説明する。図1は図2のI−O−I′線に沿う断面図である。この実施形態は、第3世代型の内輪回転タイプで、駆動輪支持用の車輪用軸受に適用したものである。なお、この明細書において、車両に取付けた状態で車両の車幅方向の外側寄りとなる側をアウトボード側と呼び、車両の中央寄りとなる側をインボード側と呼ぶ。
この電力伝送装置付車輪用軸受における軸受は、図1に断面図で示すように、内周に複列の転走面3を形成した外方部材1と、これら各転走面3に対向する転走面4を形成した内方部材2と、これら外方部材1および内方部材2の転走面3,4間に介在した複列の転動体5とで構成される。この車輪用軸受は、複列のアンギュラ玉軸受型とされていて、転動体5はボールからなり、各列毎に保持器6で保持されている。上記転走面3,4は断面円弧状であり、各転走面3,4は接触角が背面合わせとなるように形成されている。外方部材1と内方部材2との間の軸受空間の両端は、密封装置となるシール7,8によってそれぞれ密封されている。
An embodiment of the present invention will be described with reference to FIGS. 1 is a cross-sectional view taken along the line I-O-I 'of FIG. This embodiment is a third generation inner ring rotating type and is applied to a wheel bearing for driving wheel support. In this specification, the side closer to the outer side in the vehicle width direction of the vehicle when attached to the vehicle is referred to as the outboard side, and the side closer to the center of the vehicle is referred to as the inboard side.
As shown in a sectional view in FIG. 1, the bearing in the wheel bearing with power transmission device is opposed to the outer member 1 in which a double row rolling surface 3 is formed on the inner periphery, and the respective rolling surfaces 3. It is comprised by the inner member 2 which formed the rolling surface 4, and the double row rolling element 5 interposed between the rolling surfaces 3 and 4 of these outer member 1 and the inner member 2. As shown in FIG. This wheel bearing is a double-row angular ball bearing type, and the rolling elements 5 are made of balls and are held by a cage 6 for each row. The rolling surfaces 3 and 4 have a circular arc shape in cross section, and the rolling surfaces 3 and 4 are formed so that the contact angles are aligned with the back surface. Both ends of the bearing space between the outer member 1 and the inner member 2 are respectively sealed by seals 7 and 8 serving as sealing devices.

外方部材1は固定輪であり、車体の懸架装置(図示せず)におけるナックルに取付ける車体取付用のフランジ1aを外周に有し、全体が一体の部品とされている。フランジ1aには、周方向の複数箇所に車体取付用のボルト孔14が設けられている。
内方部材2は回転輪であって、車輪取付用のハブフランジ9aを有するハブ輪9と、このハブ輪9の軸部9bのインボード側端の外周に嵌合した内輪10とでなる。これらハブ輪9および内輪10に、前記各列の転走面4が形成されている。ハブ輪9のインボード側端の外周には段差を持って小径となる内輪嵌合面12が設けられ、この内輪嵌合面12に内輪10が嵌合している。ハブ輪9の中心には貫通孔11が設けられている。ハブフランジ9aには、周方向複数箇所にハブボルトの圧入孔16が設けられている。ハブ輪9のハブフランジ9aの根元部付近には、車輪および制動部品(図示せず)を案内する円筒状のパイロット部13がアウトボード側に突出している。
The outer member 1 is a fixed wheel, and has a flange 1a for mounting a vehicle body attached to a knuckle in a suspension device (not shown) of the vehicle body on the outer periphery, and the whole is an integral part. Bolt holes 14 for mounting the vehicle body are provided in the flange 1a at a plurality of locations in the circumferential direction.
The inner member 2 is a rotating wheel, and includes a hub wheel 9 having a hub flange 9a for attaching the wheel, and an inner ring 10 fitted to the outer periphery of the inboard side end of the shaft portion 9b of the hub wheel 9. The hub wheel 9 and the inner ring 10 are formed with the rolling surfaces 4 of the respective rows. An inner ring fitting surface 12 having a small diameter with a step is provided on the outer periphery of the inboard side end of the hub wheel 9, and the inner ring 10 is fitted to the inner ring fitting surface 12. A through hole 11 is provided at the center of the hub wheel 9. The hub flange 9a is provided with press-fit holes 16 for hub bolts at a plurality of locations in the circumferential direction. In the vicinity of the base portion of the hub flange 9a of the hub wheel 9, a cylindrical pilot portion 13 for guiding a wheel and a braking component (not shown) protrudes toward the outboard side.

この車輪用軸受に、固定輪である外方部材1と回転輪である内方部材2の間で非接触で電力を伝達する電力伝送装置21が設けられている。電力伝送装置21は、複列の転走面3,3(4,4)間に配置されている。   The wheel bearing is provided with a power transmission device 21 that transmits power in a non-contact manner between the outer member 1 that is a fixed wheel and the inner member 2 that is a rotating wheel. The power transmission device 21 is disposed between the double row rolling surfaces 3 and 3 (4, 4).

電力伝送装置21は、1次コイル22、ステータコア23、2次コイル24、ロータコア25、および配線26,27から構成される。1次コイル22および2次コイル24は互いに一つの磁気回路を構成するように設けられる。ステータコア23は、内径面に溝があるリング状部材からなり、その溝部内に1次コイル22が巻かれている。ロータコア25は外径面に溝があるリング状部材からなり、その溝部内に2次コイル24が巻かれている。ステータコア23およびロータコア25の一部には、配線を通すための配線孔(図示せず)が設けられている。ステータコア23および1次コイル22は、固定輪である外方部材1の内径面に、またロータコア25および2次コイル24は、回転輪である内方部材2の外径面に、お互いがラジアル方向に対向するように設置されている。ステータコア23およびロータコア25は、外方部材1および内方部材2に対して圧入または接着などの方法で固定される。なお、ステータコア23およびロータコア25のアキシャル方向の位置決めをするために、外方部材1の内径面や内方部材2の外径面に、段差や突起(図示せず)などを設けてもよい。   The power transmission device 21 includes a primary coil 22, a stator core 23, a secondary coil 24, a rotor core 25, and wirings 26 and 27. The primary coil 22 and the secondary coil 24 are provided so as to constitute one magnetic circuit. The stator core 23 is made of a ring-shaped member having a groove on the inner diameter surface, and a primary coil 22 is wound in the groove. The rotor core 25 is made of a ring-shaped member having a groove on the outer diameter surface, and a secondary coil 24 is wound in the groove. A part of the stator core 23 and the rotor core 25 is provided with a wiring hole (not shown) for passing wiring. The stator core 23 and the primary coil 22 are in the radial direction on the inner diameter surface of the outer member 1 that is a fixed ring, and the rotor core 25 and the secondary coil 24 are on the outer diameter surface of the inner member 2 that is a rotating wheel. It is installed so as to face. The stator core 23 and the rotor core 25 are fixed to the outer member 1 and the inner member 2 by a method such as press fitting or adhesion. In order to position the stator core 23 and the rotor core 25 in the axial direction, a step, a protrusion (not shown), or the like may be provided on the inner diameter surface of the outer member 1 or the outer diameter surface of the inner member 2.

固定輪である外方部材1には、1次コイル22に接続された配線26を通す配線孔28が、内径面から外径面に貫通して設けられている。回転輪である内方部材2のハブ輪9には、2次コイル24に接続された配線27を通す配線孔29が外径面から内径面に貫通して設けられ、内径面の円周方向の一部に、上記配線27を軸方向に沿って内部に這わす配線溝30が設けられている。1次コイル22およびステータコア23を組立てる場合、配線26を予め配線孔28を通した状態で、軸方向から外方部材1の内径面に嵌合すれば良い。   The outer member 1 that is a fixed ring is provided with a wiring hole 28 through which the wiring 26 connected to the primary coil 22 passes from the inner diameter surface to the outer diameter surface. The hub wheel 9 of the inner member 2 that is a rotating wheel is provided with a wiring hole 29 through which the wiring 27 connected to the secondary coil 24 passes from the outer diameter surface to the inner diameter surface. A wiring groove 30 is provided in a part of the wiring groove 27 so as to extend the wiring 27 in the axial direction. When assembling the primary coil 22 and the stator core 23, the wire 26 may be fitted to the inner diameter surface of the outer member 1 from the axial direction in a state where the wire 26 is passed through the wire hole 28 in advance.

各配線26,27の先端には、車体側およびタイヤやホイール側に配線26,27を接続するためのコネクタ31,32を設けている。タイヤやホイール側へ連結するコネクタ32は、内方部材2におけるハブ輪9の、パイロット部13よりも内径部でアウトボード側端面に固定されている。車体側へ連結するためのコネクタ31は、外方部材1の外径面に固定されない状態で設けられている。   Connectors 31 and 32 for connecting the wirings 26 and 27 to the vehicle body side and the tire or wheel side are provided at the ends of the wirings 26 and 27, respectively. The connector 32 connected to the tire or wheel side is fixed to the end face on the outboard side of the hub wheel 9 in the inner member 2 at an inner diameter portion than the pilot portion 13. The connector 31 for connecting to the vehicle body side is provided in a state where it is not fixed to the outer diameter surface of the outer member 1.

コネクタ31,32は、上記配線26,27として、固定側から回転側へ電力を供給する場合は電源線、回転側から固定側へセンサ等の出力信号を送信する場合は信号線を接続している。電源線および信号線の両方を接続しても良い。   The connectors 31 and 32 are connected to the power lines 26 and 27 when the power is supplied from the fixed side to the rotating side, and the signal lines are connected when the output signal of the sensor or the like is transmitted from the rotating side to the fixed side. Yes. Both the power line and the signal line may be connected.

コネクタ31,32は、一対のコネクタを互いに差し込み接続する差し込み接続型のコネクタ対における片方のものであり、プラグ型およびソケット型のうちのいずれであっても良い。コネクタ31,32は、多極のものであっても、同軸のものであっても良い。
図3は、ハブ輪9に固定したコネクタ32と、このコネクタ32に接続されるタイヤ側の配線34のコネクタ33の一例を、概略図で示す。
The connectors 31 and 32 are one of plug-in connector pairs in which a pair of connectors are inserted and connected to each other, and may be either a plug type or a socket type. The connectors 31 and 32 may be multipolar or coaxial.
FIG. 3 is a schematic view showing an example of the connector 32 fixed to the hub wheel 9 and the connector 33 of the tire-side wiring 34 connected to the connector 32.

上記のように電力伝送装置21を内蔵した構成にすれば、例えば、固定輪である外方部材1側から回転輪である内方部材2側に電力を供給する場合、1次コイル22に交流電圧を加えると、コア23,25に発生した磁束により、誘導電力として2次コイル24に伝達される。そのため、非接触で電力の供給を行うことができる。
また、上記のように、コネクタ32を介してタイヤやホイールと連結することにより、車輪用軸受をホイールへ設置する際に配線が邪魔にならず、車輪用軸受を設置する前でもタイヤ内での配線を行うことが可能になる。コネクタ31,32は、嵌合状態で防水性を有するものを使用すると良い。そうすることで、自動車の足回りのような環境が悪い条件でも使用できる。また、ハブ輪9側の配線27は、配線溝30に固定しておくと良い。そうすれば、等速ジョイントを組み込む際にも、配線27が邪魔にならず、断線することなく組み込むことが可能となる。また、配線孔28,29や配線溝30の一部をモールド樹脂(図示せず)等でモールドしておけば、軸受内部へ水などが浸入することを防止できる。また、1次コイル22および2次コイル24には、保護用の隔壁となる樹脂等のカバー(図示せず)で覆っても良く、これによりコイル22,24を保護することが出来る。
If the power transmission device 21 is built in as described above, for example, when power is supplied from the outer member 1 side, which is a fixed ring, to the inner member 2 side, which is a rotating ring, AC is supplied to the primary coil 22. When a voltage is applied, it is transmitted to the secondary coil 24 as inductive power by the magnetic flux generated in the cores 23 and 25. Therefore, power can be supplied without contact.
Further, as described above, by connecting to the tire or wheel via the connector 32, the wiring does not get in the way when the wheel bearing is installed on the wheel, and even before installing the wheel bearing, Wiring can be performed. It is preferable to use connectors 31 and 32 that are waterproof when fitted. By doing so, it can be used even under poor conditions such as undercarriage of automobiles. The wiring 27 on the hub wheel 9 side is preferably fixed in the wiring groove 30. Then, when the constant velocity joint is assembled, the wiring 27 does not get in the way and can be assembled without being disconnected. In addition, if part of the wiring holes 28 and 29 and the wiring groove 30 is molded with a molding resin (not shown) or the like, water or the like can be prevented from entering the bearing. In addition, the primary coil 22 and the secondary coil 24 may be covered with a cover (not shown) such as a resin serving as a protective partition, thereby protecting the coils 22 and 24.

なお、この実施形態では、電力伝送装置21として1次コイル22と2次コイル24からなるロータリトランス構造を示しているが、電力伝送装置21は、非接触で電力を供給可能なものであれば良く、この他に、赤外線、光、電波、超音波、容量カップリング、磁気結合、などを利用して電力を伝送するものであっても良い。ただし、車輪用軸受のような回転体の場合は、この実施形態のようなロータリトランス構造が適していると考えられる。   In this embodiment, a rotary transformer structure including a primary coil 22 and a secondary coil 24 is shown as the power transmission device 21, but the power transmission device 21 can supply power without contact. In addition, power may be transmitted using infrared rays, light, radio waves, ultrasonic waves, capacitive coupling, magnetic coupling, or the like. However, in the case of a rotating body such as a wheel bearing, a rotary transformer structure like this embodiment is considered suitable.

図10は、図1の実施形態と同様な構成の電力伝送装置付車輪用軸受をナックル60に固定した組立図を示す。なお、同図の車輪用軸受装置は、内方部材2の内輪10をハブ輪9の端部の加締部9cで加締固定している点で図1の実施形態と異なるが、その他の構成は同じである。
この電力伝送装置付車輪用軸受は、その固定輪である外方部材1をナックル60にボルト61で連結している。内方部材2には、等速ジョイント62の外輪63のステム部63aを挿通し、ステム部63aの基端周辺の段面と先端のナット64との間で内方部材2を挟み込むことで、車輪用軸受装置と等速ジョイント62とを連結している。車輪用軸受装置の回転輪である内方部材2には、そのハブフランジ9aにブレーキロータ40とホイール50とを重ね、ハブボルト15で固定する。ホイール50にはタイヤ50aが取付けられている。
FIG. 10 is an assembly view in which a wheel bearing with a power transmission device having the same configuration as that of the embodiment of FIG. 1 is fixed to the knuckle 60. 1 is different from the embodiment of FIG. 1 in that the inner ring 10 of the inner member 2 is caulked and fixed by the caulking portion 9c at the end of the hub wheel 9. The configuration is the same.
In the wheel bearing with power transmission device, the outer member 1, which is a fixed wheel, is connected to a knuckle 60 with a bolt 61. The inner member 2 is inserted through the stem portion 63a of the outer ring 63 of the constant velocity joint 62, and the inner member 2 is sandwiched between the step surface around the proximal end of the stem portion 63a and the nut 64 at the distal end. The wheel bearing device and the constant velocity joint 62 are connected. The brake rotor 40 and the wheel 50 are overlapped on the hub flange 9 a of the inner member 2 that is a rotating wheel of the wheel bearing device, and fixed with the hub bolt 15. A tire 50 a is attached to the wheel 50.

図4は、この発明の他の実施形態を示す。この実施形態は、電力伝送装置21における1次コイル22および2次コイル24を、互いがアキシャル方向に対向するように設置したものである。ステータコア23Aおよびロータコア25Aは、L字形断面となるリング状部材とし、その内部に1次コイル22および2次コイル24が巻かれている。
1次コイル22または2次コイル24に交流電圧を加えた場合の磁路つまり磁気回路は、回転輪を構成するハブ輪9の一部を含んでいる。このように磁気回路がハブ輪9の一部を含むように構成すれば、磁気回路を構成し易く、ロータコア25Aやステータコア23Aの形状を簡素化できる。その他の構成,効果については、図1の実施形態と同様である。
FIG. 4 shows another embodiment of the present invention. In this embodiment, the primary coil 22 and the secondary coil 24 in the power transmission device 21 are installed so as to face each other in the axial direction. Stator core 23A and rotor core 25A are ring-shaped members having an L-shaped cross section, and primary coil 22 and secondary coil 24 are wound therein.
A magnetic path, that is, a magnetic circuit when an alternating voltage is applied to the primary coil 22 or the secondary coil 24 includes a part of the hub wheel 9 constituting the rotating wheel. If the magnetic circuit is configured to include a part of the hub wheel 9 in this way, the magnetic circuit can be easily configured, and the shapes of the rotor core 25A and the stator core 23A can be simplified. Other configurations and effects are the same as those of the embodiment of FIG.

図5は、この発明のさらに他の実施形態を示す。この実施形態は、従動輪用の車輪用軸受に適用した例である。回転輪となる内方部材2を構成するハブ輪9は、中心部に貫通孔を有しない形状とされている。この車輪用軸受において、アウトボード側の転走面3,4とアウトボード側のシール7Aとの間に電力伝送装置21を配置している。この実施形態では、タイヤやホイール側に配線27を連結するためのコネクタ32を、回転輪となるハブ輪9の先端に固定していないが、固定しても構わない。電力伝送装置21の組み立てを可能にするために、アウトボード側のシール7Aは回転輪であるハブ輪9に設置している。それ以外の構成は、図1の実施形態と同様である。   FIG. 5 shows still another embodiment of the present invention. This embodiment is an example applied to a wheel bearing for a driven wheel. The hub wheel 9 constituting the inner member 2 serving as a rotating wheel has a shape that does not have a through hole in the center. In this wheel bearing, the power transmission device 21 is disposed between the rolling surfaces 3 and 4 on the outboard side and the seal 7A on the outboard side. In this embodiment, the connector 32 for connecting the wiring 27 to the tire or wheel side is not fixed to the tip end of the hub wheel 9 serving as a rotating wheel, but may be fixed. In order to allow the power transmission device 21 to be assembled, the seal 7A on the outboard side is installed on the hub wheel 9 which is a rotating wheel. The other configuration is the same as that of the embodiment of FIG.

図6は、この発明のさらに他の実施形態を示す。この実施形態では、電力伝送装置21は、回転輪を構成するハブ9のハブフランジ9aの基端と、固定輪となる外方部材1のアウトボード側端の内径面との間に配置されている。1次コイル22と2次コイル24は、アキシャル方向に対向するように配置されている。回転輪のハブフランジ9aと外方部材1のアウトボード側の端面との間には密封装置7Bを設けている。ハブフランジ9aの円周方向の一部には、2次コイルの配線27を這わす配線溝36が設けられており、ハブフランジ9aの外径面から配線27に連結されたコネクタ32を外に出している。この配線27のハブフランジ9aから外に出された部分は、ブレーキロータ40の一部に配線孔41を設けて外径側へ引き出すと良い。それ以外の構成は、図4と共に前述した実施形態と同じである。   FIG. 6 shows still another embodiment of the present invention. In this embodiment, the power transmission device 21 is disposed between the proximal end of the hub flange 9a of the hub 9 constituting the rotating wheel and the inner diameter surface of the outer board 1 end of the outer member 1 serving as a fixed ring. Yes. The primary coil 22 and the secondary coil 24 are arranged so as to face each other in the axial direction. A sealing device 7B is provided between the hub flange 9a of the rotating wheel and the end face of the outer member 1 on the outboard side. A part of the hub flange 9a in the circumferential direction is provided with a wiring groove 36 that extends the wiring 27 of the secondary coil, and the connector 32 connected to the wiring 27 is exposed to the outside from the outer diameter surface of the hub flange 9a. I'm out. The portion of the wiring 27 that protrudes from the hub flange 9a is preferably provided with a wiring hole 41 in a part of the brake rotor 40 and pulled out to the outer diameter side. Other configurations are the same as those of the embodiment described above with reference to FIG.

図7は、この発明のさらに他の実施形態を示す。図7(B)はアウトボード側から見たホイール50の内径部の図を示す。この実施形態では、電力伝送装置21におけるロータコア25Aの形状が図6の例と異なり、1次コイル22または2次コイル24に交流電圧を加えた場合の磁路は、回転輪を構成するハブ輪9と固定輪である外方部材1の一部を含む。また、ハブ輪9のハブフランジ9aの一部に配線孔42を設け、ハブフランジ9aのアウトボード側の側面にコネクタ32を固定している。この場合、ホイール50およびブレーキロータ40の内径面に、互いに整合する切欠き51を設け、この切欠き51内にコネクタ32が来るように配置する。これにより、ブレーキロータ40やホイール50の設置後でも容易に配線することができる。それ以外の構成は、図6の実施例と同じである。   FIG. 7 shows still another embodiment of the present invention. FIG. 7B shows a view of the inner diameter portion of the wheel 50 as viewed from the outboard side. In this embodiment, the shape of the rotor core 25A in the power transmission device 21 is different from the example of FIG. 6, and the magnetic path when an AC voltage is applied to the primary coil 22 or the secondary coil 24 is a hub wheel that constitutes a rotating wheel. 9 and a part of the outer member 1 which is a fixed ring. Further, a wiring hole 42 is provided in a part of the hub flange 9a of the hub wheel 9, and the connector 32 is fixed to the side surface of the hub flange 9a on the outboard side. In this case, a notch 51 that is aligned with each other is provided on the inner diameter surface of the wheel 50 and the brake rotor 40, and the connector 32 is disposed so as to come into the notch 51. Thereby, wiring can be easily performed even after the brake rotor 40 and the wheel 50 are installed. The other configuration is the same as that of the embodiment of FIG.

図8は、この発明のさらに他の実施形態を示す。この実施形態では、電力伝送装置21の1次コイル22および2字コイル24を、固定輪である外方部材1の外周に位置させている。ステータコア23Aは外方部材1の外径面に固定し、ロータ25Aはハブフランジ9aの側面に固定している。それ以外の構成は、図7の実施形態と同じである。   FIG. 8 shows still another embodiment of the present invention. In this embodiment, the primary coil 22 and the two-shaped coil 24 of the power transmission device 21 are positioned on the outer periphery of the outer member 1 that is a fixed ring. The stator core 23A is fixed to the outer diameter surface of the outer member 1, and the rotor 25A is fixed to the side surface of the hub flange 9a. The other configuration is the same as that of the embodiment of FIG.

図9は、この発明のさらに他の実施形態を示す。この実施形態では、回転輪を構成する内方部材2のハブ輪9と、固定輪である外方部材1に、それぞれ制御回路53,54を設置している。制御回路53,54は、回路基板に回路素子を実装したもの、または回路チップからなり、ハブ輪9のハブフランジ9aの側面、および外方部材1の外径面に固定されている。これら制御回路53,54は、伝達する電力の安定化を行うものであり、整流回路、レギュレータ、インバータなどを含む。例えば、固定輪である外方部材1側の制御回路54にインバータ、回転輪を構成するハブ輪9側に整流回路およびレギュレータを設ける。これにより、車体側からの直流電圧を交流電圧に変換し、1次コイル22に交流電圧を加える。1次コイル22に交流電圧を加えると、誘導電力として2次コイル24に伝達されるため、2次コイル24で発生した交流電圧を整流回路で直流電圧に変換し、レギュレータで平滑、定電圧化して出力すれば、タイヤやホイールに設置したセンサへ安定した電力を供給できる。ハブフランジ9aに設ける配線27の案内用の溝36は、ハブフランジの内径部から、制御回路53の取付位置までとされている。この実施形態におけるその他の構成は、図6に示す実施形態と同様である。   FIG. 9 shows still another embodiment of the present invention. In this embodiment, control circuits 53 and 54 are installed on the hub wheel 9 of the inner member 2 constituting the rotating wheel and the outer member 1 which is a fixed wheel, respectively. The control circuits 53 and 54 are formed by mounting circuit elements on a circuit board or a circuit chip, and are fixed to the side surface of the hub flange 9 a of the hub wheel 9 and the outer diameter surface of the outer member 1. These control circuits 53 and 54 stabilize the transmitted power and include a rectifier circuit, a regulator, an inverter, and the like. For example, an inverter is provided in the control circuit 54 on the outer member 1 side which is a fixed wheel, and a rectifier circuit and a regulator are provided on the hub wheel 9 side constituting the rotating wheel. Thereby, the DC voltage from the vehicle body side is converted into an AC voltage, and the AC voltage is applied to the primary coil 22. When an AC voltage is applied to the primary coil 22, it is transmitted as inductive power to the secondary coil 24. Therefore, the AC voltage generated in the secondary coil 24 is converted into a DC voltage by a rectifier circuit, and smoothed and made constant by a regulator. Can output stable power to sensors installed on tires and wheels. The guide groove 36 of the wiring 27 provided in the hub flange 9 a extends from the inner diameter portion of the hub flange to the mounting position of the control circuit 53. The other configuration in this embodiment is the same as that of the embodiment shown in FIG.

なお、上記各実施形態では、電力伝送装置21を複列の転走面3,3間か、または車輪用軸受装置のアウトボード側端に配置したが、車輪用軸受装置のインボード側部に電力伝送装置21を設け、等速ジョイント62(図10)に設置したセンサ(図示せず)へ電力を供給するようにしても良い。その場合、固定輪となる外方部材1のインボード側端面に1次コイル22を設置し、内輪10に2次コイル24を設けても良い。
また、上記各実施形態は、外方部材1が固定側輪としたが、この発明は内方部材が固定側輪で外方部材が回転側輪となる車輪用軸受装置にも適用することができる。
In each of the above embodiments, the power transmission device 21 is arranged between the double row rolling surfaces 3 and 3 or at the end of the outboard side of the wheel bearing device. The power transmission device 21 may be provided to supply power to a sensor (not shown) installed at the constant velocity joint 62 (FIG. 10). In that case, the primary coil 22 may be provided on the inboard side end surface of the outer member 1 serving as a fixed ring, and the secondary coil 24 may be provided on the inner ring 10.
In each of the above embodiments, the outer member 1 is a fixed side wheel, but the present invention can also be applied to a wheel bearing device in which the inner member is a fixed side wheel and the outer member is a rotating side wheel. it can.

この発明の第1の実施形態にかかる電力伝送装置付車輪用軸受の断面図である。It is sectional drawing of the wheel bearing with electric power transmission apparatus concerning 1st Embodiment of this invention. 同電力伝送装置付車輪用軸受をインボード側から見た側面図である。It is the side view which looked at the wheel bearing with the same power transmission device from the inboard side. コネクタの一例を示す概略図である。It is the schematic which shows an example of a connector. この発明の他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of this invention. この発明のさらに他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of this invention. この発明のさらに他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of this invention. (A),(B)は、それぞれこの発明のさらに他の実施形態を示す断面図、およびそのホイールの内径部を示す正面図である。(A), (B) is sectional drawing which shows further another embodiment of this invention, respectively, and a front view which shows the internal diameter part of the wheel. この発明のさらに他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of this invention. この発明のさらに他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of this invention. この発明のさらに他の実施形態に係る電力伝送装置付車輪用軸受をナックルに取付け、ホイールを組付けた状態を示す組立図である。It is an assembly drawing which shows the state which attached the wheel bearing with electric power transmission devices which concerns on further another embodiment of this invention to the knuckle, and assembled | attached the wheel.

符号の説明Explanation of symbols

1…外方部材(固定輪)
2…内方部材(回転輪)
3,4…転走面
5…転動体
7,8…シール(密封装置)
21…電力伝送装置
22…1次コイル
23…ステータコア
24…2次コイル
25…ロータコア
26,27…配線
28,29…孔
30…溝
31,32…コネクタ
40…ブレーキロータ
50…ホイール
50a…タイヤ
1. Outer member (fixed ring)
2 ... Inward member (rotating wheel)
3, 4 ... rolling surface 5 ... rolling elements 7, 8 ... seal (sealing device)
DESCRIPTION OF SYMBOLS 21 ... Electric power transmission device 22 ... Primary coil 23 ... Stator core 24 ... Secondary coil 25 ... Rotor core 26, 27 ... Wiring 28, 29 ... Hole 30 ... Groove 31, 32 ... Connector 40 ... Brake rotor 50 ... Wheel 50a ... Tire

Claims (11)

複列の転走面が形成された固定輪と、この固定輪の転走面と対向する転走面を形成した回転輪と、対向する転走面間に介在した複列の転動体と、前記固定輪と前記回転輪間の端部を密封する密封装置とを備え、車体に対して車輪を回転自在に支持する車輪用軸受において、
前記固定輪と前記回転輪の間で非接触で電力を伝達する電力伝送装置を設け、前記固定輪または前記回転輪の少なくても一方に、前記電力伝送装置に接続されたコネクタを有することを特徴とする電力伝送装置付車輪用軸受。
A fixed ring formed with a double row rolling surface, a rotating wheel formed with a rolling surface facing the rolling surface of the fixed wheel, and a double row rolling element interposed between the opposing rolling surfaces; A wheel bearing that includes a sealing device that seals an end portion between the fixed wheel and the rotating wheel, and rotatably supports the wheel with respect to the vehicle body;
A power transmission device that transmits power in a contactless manner between the fixed wheel and the rotating wheel is provided, and at least one of the fixed wheel or the rotating wheel has a connector connected to the power transmission device. A wheel bearing with a power transmission device.
請求項1において、前記電力伝送装置は、前記固定輪に設けられるコアに巻回された1次コイルと、前記回転輪に設けられるコアに巻回された2次コイルとでなり、前記1次コイルと前記2次コイルとで磁気回路を構成することを特徴とした電力伝送装置付車輪用軸受。   2. The power transmission device according to claim 1, wherein the power transmission device includes a primary coil wound around a core provided in the fixed wheel and a secondary coil wound around a core provided in the rotating wheel. A wheel bearing with a power transmission device, wherein a magnetic circuit is constituted by a coil and the secondary coil. 請求項2において、前記1次コイルおよび前記2次コイルのいずれか一方または両方が、コイルを保護するための隔壁を有することを特徴とする電力伝送装置付車輪用軸受。   3. The wheel bearing with a power transmission device according to claim 2, wherein one or both of the primary coil and the secondary coil have a partition wall for protecting the coil. 請求項2または請求項3において、前記電力伝送装置における磁気回路は、前記固定輪の一部および前記回転輪の一部のどちらか一方または両方を含むことを特徴とする電力伝送装置付車輪用軸受。   4. The wheel for a power transmission device according to claim 2, wherein the magnetic circuit in the power transmission device includes one or both of a part of the fixed wheel and a part of the rotating wheel. bearing. 請求項1ないし請求項4のいずれか1項において、前記コネクタは、このコネクタに対して接続されるコネクタとの差し込み接続状態で防水性を有するものとしたことを特徴とした電力伝送装置付車輪用軸受。   The wheel with a power transmission device according to any one of claims 1 to 4, wherein the connector has waterproofness in a plugged connection state with a connector connected to the connector. Bearings. 請求項1ないし請求項5のいずれか1項において、前記コネクタは、前記回転輪または前記固定輪に固定したことを特徴とする電力伝送装置付車輪用軸受。   6. The wheel bearing with a power transmission device according to any one of claims 1 to 5, wherein the connector is fixed to the rotating wheel or the fixed wheel. 請求項1ないし請求項6のいずれか1項において、前記コネクタとして、タイヤまたはホイール側へ配線を接続するコネクタを有し、このコネクタは前記回転輪の内径部に配置したことを特徴とする電力伝送装置付車輪用軸受。   The electric power according to any one of claims 1 to 6, wherein the connector includes a connector for connecting a wiring to a tire or a wheel, and the connector is disposed on an inner diameter portion of the rotating wheel. Wheel bearing with transmission device. 請求項1ないし請求項6のいずれか1項において、前記コネクタとして、タイヤまたはホイール側へ配線を連結するコネクタを有し、このコネクタは前記回転輪に設けられたフランジに配置したことを特徴とする電力伝送装置付車輪用軸受。   7. The method according to claim 1, wherein the connector includes a connector for connecting wiring to a tire or a wheel, and the connector is disposed on a flange provided on the rotating wheel. Wheel bearing with power transmission device. 請求項1ないし請求項8のいずれか1項において、前記固定輪および前記回転輪のいずれか一方または両方に、これら固定輪と回転輪の対向する周面から軸受外部に配線を出すための配線孔または配線溝を有することを特徴とする電力伝送装置付車輪用軸受。   9. The wiring according to claim 1, wherein one or both of the fixed wheel and the rotating wheel is provided with a wiring outside the bearing from a circumferential surface facing the fixed wheel and the rotating wheel. A wheel bearing with a power transmission device, comprising a hole or a wiring groove. 請求項9において、前記配線孔または前記配線溝の一部をモールドしたことを特徴とする電力伝送装置付車輪用軸受。   The wheel bearing with power transmission device according to claim 9, wherein a part of the wiring hole or the wiring groove is molded. 請求項1ないし請求項10のいずれか1項において、前記固定輪および前記回転輪のいずれか一方または両方に、伝達する電力の安定化を行う制御回路を有することを特徴とした電力伝送装置付車輪用軸受。   11. The power transmission device according to claim 1, further comprising: a control circuit that stabilizes power to be transmitted to one or both of the fixed wheel and the rotating wheel. Wheel bearing.
JP2007092148A 2007-03-30 2007-03-30 Wheel bearing with power transmission device Expired - Fee Related JP5085173B2 (en)

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PCT/JP2008/000587 WO2008129787A1 (en) 2007-03-30 2008-03-14 Bearing for wheel with communication function

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101612477B1 (en) 2014-03-20 2016-04-14 주식회사 오토산업 Wireless power transfer system for car wheel
JP2017105416A (en) * 2015-12-04 2017-06-15 日本精工株式会社 Drive wheel support rolling bearing unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002055113A (en) * 2000-08-09 2002-02-20 Ntn Corp Bearing device for wheel
JP2002130262A (en) * 2000-10-27 2002-05-09 Ntn Corp Bearing with non-contact signal transmitting mechanism
JP2003157485A (en) * 2001-11-21 2003-05-30 Nsk Ltd Transmission device of signal for showing state of wheel support part
JP2005258529A (en) * 2004-03-09 2005-09-22 Ntn Corp Wireless sensor-equipped bearing device for wheel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002055113A (en) * 2000-08-09 2002-02-20 Ntn Corp Bearing device for wheel
JP2002130262A (en) * 2000-10-27 2002-05-09 Ntn Corp Bearing with non-contact signal transmitting mechanism
JP2003157485A (en) * 2001-11-21 2003-05-30 Nsk Ltd Transmission device of signal for showing state of wheel support part
JP2005258529A (en) * 2004-03-09 2005-09-22 Ntn Corp Wireless sensor-equipped bearing device for wheel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101612477B1 (en) 2014-03-20 2016-04-14 주식회사 오토산업 Wireless power transfer system for car wheel
JP2017105416A (en) * 2015-12-04 2017-06-15 日本精工株式会社 Drive wheel support rolling bearing unit

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