JP2009005430A - Bearing with power generator - Google Patents

Bearing with power generator Download PDF

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JP2009005430A
JP2009005430A JP2007161099A JP2007161099A JP2009005430A JP 2009005430 A JP2009005430 A JP 2009005430A JP 2007161099 A JP2007161099 A JP 2007161099A JP 2007161099 A JP2007161099 A JP 2007161099A JP 2009005430 A JP2009005430 A JP 2009005430A
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Prior art keywords
generator
bearing
wheel
rolling
stator
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JP2007161099A
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Japanese (ja)
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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 JP2007161099A priority Critical patent/JP2009005430A/en
Publication of JP2009005430A publication Critical patent/JP2009005430A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/004—Electro-dynamic machines, e.g. motors, generators, actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/001—Integrated brakes or clutches for stopping or coupling the relatively movable parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing with a power generator which enhances fuel consumption of an automobile, or the like, by utilizing the heat energy at the time of braking as the power supply for sensors, and has such effects as the weight reduction of an automobile through shortening of the length of a wire harness, reduction of wear of a brake pad. <P>SOLUTION: A plurality of rows of rollers 5 and 5 are interposed between a fixed ring, i.e. an outer member 1, and a rotary ring, i.e. an inner member 2. A generator 21 is provided between the outer member 1 and the inner member 2. The generator 21 has a stator 23 provided on the outer member 1, and a rotor 25 provided on the inner member 2 wherein any one of the stator 23 or the rotor 25 includes a magnet and the other includes a coil. A power generation function on/off means 31 for activating the generator 21 in response to a brake command and inactivating the generator 21 by releasing the brake command, is also provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、いわば回生ブレーキとして利用する発電機を装備した車輪用軸受等の発電機付軸受に関する。   The present invention relates to a generator bearing such as a wheel bearing equipped with a generator used as a regenerative brake.

近年、自動車においては、走行安定性の向上やＣＯ2 の削減、燃費の向上のために、電子制御が必須である。その一方で、自動車に電子制御を用いると、ワイヤハーネスが増大し、自動車の軽量化に影響を与えるので、軽量化に影響しないような電子制御の採用が望まれる。
このような要望に応えるものとして、軸受にセンサ駆動用の発電機を組み込んだ車輪用軸受装置や発電機能付軸受が提案されている（例えば特許文献１〜３）。発電機を利用すると、給電用の配線が不要でワイヤハーネスが削減できる。
特開２００２−０５５１１３号公報 特開２００３−２６９４７４号公報 特開２００５−１２１１７２号公報 In recent years, electronic control is essential for automobiles to improve running stability, reduce CO2, and improve fuel efficiency. On the other hand, when electronic control is used in an automobile, the wire harness increases and affects the weight reduction of the automobile. Therefore, it is desired to employ electronic control that does not affect the weight reduction.
As a response to such a demand, a wheel bearing device in which a generator for driving a sensor is incorporated in a bearing and a bearing with a power generation function have been proposed (for example, Patent Documents 1 to 3). When a generator is used, no wiring for power feeding is required, and wire harnesses can be reduced.
JP 2002-055113 A JP 2003-269474 A JP 2005-121172 A

しかしながら、特許文献１〜３に開示の技術では、発電機を作動させるとブレーキ力が働くので、発電機により回転エネルギを１００％電気エネルギに変換できなければ、損失が発生することになる。また、このような構成の車輪用軸受で発電機を作動させた場合、前記損失により自動車の燃費が低下するといった問題がある。   However, in the techniques disclosed in Patent Documents 1 to 3, since the braking force works when the generator is operated, loss occurs if the generator cannot convert the rotational energy into 100% electrical energy. Further, when the generator is operated with the wheel bearing having such a configuration, there is a problem that the fuel consumption of the automobile is reduced due to the loss.

この発明の目的は、制動時のエキルギーを有効利用して発電が行えて、エネルギ損失の低減が可能な発電機付軸受を提供することである。
この発明の他の目的は、車輪用軸受に適用された場合に、自動車の燃費向上、ワイヤハーネスの長さの短縮による自動車の軽量化、ブレーキパッドの摩耗低減を図れるものとすることである。 An object of the present invention is to provide a generator-equipped bearing capable of generating power by effectively using the energy at the time of braking and capable of reducing energy loss.
Another object of the present invention is to improve the fuel consumption of a vehicle, reduce the weight of a vehicle by shortening the length of a wire harness, and reduce the wear of brake pads when applied to a wheel bearing.

この発明の発電機付軸受は、固定輪と回転輪の対向する転走面間に転動体を介在させた転がり軸受において、前記固定輪に設けられたステータ、および回転輪に設けられたロータを有し、前記ステータおよびロータのいずれか一方が磁石を含み、他方がコイルを含む発電機を備え、制動指令に応答して前記発電機を能動化させ前記制動指令の解除により前記発電機を非能動化させる発電機能オンオフ手段を設けたことを特徴とする。ここで言う「能動化」とは、発電機として機能可能な状態とすることを言う。上記制動指令は、この発電機付軸受で支持する回転体を回転駆動する駆動系において、上記発電機とは別に設けられる制動装置へ与える制動指令であっても良く、上記発電機に与えられる専用の制動指令であっても良い。   A bearing with a generator of the present invention is a rolling bearing in which a rolling element is interposed between rolling surfaces facing a fixed ring and a rotating ring. A stator provided on the fixed ring and a rotor provided on the rotating ring are provided. A generator including one of the stator and the rotor including a magnet and the other including a coil. The generator is activated in response to a braking command, and the generator is deactivated by releasing the braking command. The power generation function on / off means to be activated is provided. “Activation” as used herein refers to a state in which the generator can function. The braking command may be a braking command given to a braking device provided separately from the generator in a drive system for rotationally driving the rotating body supported by the bearing with the generator, or a dedicated command given to the generator The braking command may be used.

軸受で支持される回転体にブレーキを働かせる場合に、発電機能オンオフ手段に制動指令を与えると、制動指令に応答して発電機能オンオフ手段が発電機を能動化させるので、発電機がブレーキとして働く。いわば、発電機が回生ブレーキとして作用する。これにより、制動のために放出される熱エネルギが発電機で発電電力に変換され、エネルギ損失の低減が可能となる。   When braking is applied to a rotating body supported by a bearing, if a braking command is given to the power generation function on / off means, the power generation function on / off means activates the generator in response to the braking command, so the generator works as a brake. . In other words, the generator acts as a regenerative brake. Thereby, the thermal energy released for braking is converted into generated power by the generator, and energy loss can be reduced.

この発明において、前記発電機の発電した電力を蓄電するキャパシタを設けても良い。キャパシタを設けた場合、蓄電した電力を、例えば軸受に設置されるセンサ類等の機器の電源として利用することができる。上記センサ類としては、例えば、荷重センサや回転センサがある。これにより、ブレーキ時に放出される熱エネルギを機器の電源として利用できる。   In the present invention, a capacitor for storing electric power generated by the generator may be provided. When a capacitor is provided, the stored electric power can be used as a power source for devices such as sensors installed on a bearing, for example. Examples of the sensors include a load sensor and a rotation sensor. Thereby, the thermal energy released at the time of braking can be used as a power source for the device.

この発明において、前記転がり軸受が、複列の転走面が形成された固定輪と、この固定輪の各転走面に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であっても良い。
車輪用軸受では、荷重センサや回転センサ等のセンサ類が設置されることが多く、また車両の加速や制動が繰り返されて発電機を機能させる時が多い。そのため、この発明の発電機付軸受の利点がより一層効果的となる。例えば、ブレーキ時に放出される熱エネルギがセンサ類等の電源として利用できて、自動車の燃費向上が得られ、また発電機の利用によりセンサ類への給電用配線が省略できて、ワイヤハーネスの長さの短縮、この短縮による自動車の軽量化にも繋がる。 In the present invention, the rolling bearing includes a fixed ring formed with a double row rolling surface, a rotating wheel formed with a rolling surface that faces each rolling surface of the fixed wheel, and a facing rolling surface. It may be a wheel bearing that includes a double-row rolling element interposed between and supports a wheel rotatably with respect to the vehicle body.
In the wheel bearing, sensors such as a load sensor and a rotation sensor are often installed, and the vehicle is often accelerated and braked to function the generator. Therefore, the advantage of the generator bearing is more effective. For example, the thermal energy released during braking can be used as a power source for sensors, etc., improving the fuel consumption of automobiles, and by using a generator, the power supply wiring to the sensors can be omitted. This also leads to a reduction in the weight of the automobile.

車輪用軸受に適用した場合に、前記発電機は、車両の接触式のブレーキと併用されるものであり、前記制動指令は、車両の電気制御ユニットから前記ブレーキに与えられるブレーキ指令であっても良い。
この構成の場合、発電機は前記接触式のブレーキに対する補助ブレーキとして使用される。車両の電気制御ユニットから車両の接触式のブレーキにブレーキ指令が与えられるとき、発電機能オンオフ手段にも前記ブレーキ指令が制動指令として与えられ、その制動指令に応答して発電機能オンオフ手段が発電機を能動化させる。これにより、接触式のブレーキと並行して発電機が作動して、発電機のブレーキ機能が補助ブレーキとして働くことになる。発電機によりブレーキ力が非接触で得られるため、ブレーキパッドの摩耗が低減されるという利点も得られる。 When applied to a wheel bearing, the generator is used in combination with a contact brake of a vehicle, and the braking command may be a braking command given to the brake from an electric control unit of the vehicle. good.
In this configuration, the generator is used as an auxiliary brake for the contact brake. When a brake command is given from the vehicle electrical control unit to the contact brake of the vehicle, the brake command is also given to the power generation function on / off means as a braking command, and the power generation function on / off means responds to the braking command. Is activated. As a result, the generator operates in parallel with the contact-type brake, and the brake function of the generator works as an auxiliary brake. Since the brake force can be obtained in a non-contact manner by the generator, there is also an advantage that wear of the brake pad is reduced.

車輪用軸受に適用した場合に、前記発電機のステータがコイルを有し、前記固定輪に、前記発電機能オンオフ手段を有し前記発電機を制御する制御基盤を設けても良い。
発電機を制御する制御基盤を固定輪に設置すると、自動車の電気制御ユニットが複雑化することが回避される。また、上記制御基盤に発電機能オンオフ手段を配置することで、制御のための回路を集約することができる。 When applied to a wheel bearing, the stator of the generator may have a coil, and the fixed wheel may be provided with a control base for controlling the generator by having the power generation function on / off means.
If the control board for controlling the generator is installed on the fixed wheel, the electric control unit of the automobile is prevented from becoming complicated. Further, by arranging the power generation function on / off means on the control board, it is possible to consolidate circuits for control.

この発明において、前記ロータが前記コイルを有し、前記ステータが前記磁石を有し、前記回転輪またはこの回転輪に取付けられて回転輪と共に回転する部材に、前記発電機の発電した電力を蓄電するキャパシタ、およびこのキャパシタの蓄電した電力を用いる機器を設け、前記回転輪に前記発電機能オンオフ手段を設け、前記固定輪と回転輪との間に前記制動指令および前記機器の出力をワイヤレスで伝達するワイヤレス伝達手段を設けても良い。
この構成の場合、回転輪に設けられた発電機能オンオフ手段に対して、ワイヤレス伝達手段から制動指令を与えることにより、発電機を能動化させてブレーキ機能を働かせることができる。また、発電機の発電した電力は、回転輪と共に回転する部材に設けられたキャパシタで蓄電され、その蓄電された電力が同じ部材に設けられた機器の電源として用いられる。また、前記機器の出力はワイヤレス伝達手段によりワイヤレスで外部に伝達される。その結果、回転輪側での配線が簡略になる。 In this invention, the rotor has the coil, the stator has the magnet, and the electric power generated by the generator is stored in the rotating wheel or a member attached to the rotating wheel and rotating together with the rotating wheel. And a device that uses the electric power stored in the capacitor, the power generation function on / off means is provided on the rotating wheel, and the braking command and the output of the device are transmitted wirelessly between the fixed wheel and the rotating wheel. Wireless transmission means may be provided.
In the case of this configuration, it is possible to activate the generator and activate the brake function by giving a braking command from the wireless transmission means to the power generation function on / off means provided on the rotating wheel. Moreover, the electric power generated by the generator is stored in a capacitor provided on a member that rotates together with the rotating wheel, and the stored electric power is used as a power source for a device provided on the same member. The output of the device is transmitted to the outside wirelessly by a wireless transmission means. As a result, wiring on the rotating wheel side is simplified.

この発明の発電機付軸受は、固定輪と回転輪の対向する転走面間に転動体を介在させた転がり軸受において、前記固定輪に設けられたステータ、および回転輪に設けられたロータを有し、前記ステータおよびロータのいずれか一方が磁石を含み、他方がコイルを含む発電機を備え、制動指令に応答して前記発電機を能動化させ前記制動指令の解除により前記発電機を非能動化させる発電機能オンオフ手段を設けたため、制動時のエキルギーを有効利用して発電が行えて、エネルギ損失の低減が可能となる。
車輪用軸受に適用した場合は、制動時の熱エネルギをセンサ類等の電源として利用できて、自動車の燃費向上が得られ、またワイヤハーネスの長さの短縮による自動車の軽量化や、ブレーキパッドの摩耗の低減などの効果が得られる。 A bearing with a generator of the present invention is a rolling bearing in which a rolling element is interposed between rolling surfaces facing a fixed ring and a rotating ring. A stator provided on the fixed ring and a rotor provided on the rotating ring are provided. A generator including one of the stator and the rotor including a magnet and the other including a coil. The generator is activated in response to a braking command, and the generator is deactivated by releasing the braking command. Since the power generation function ON / OFF means to be activated is provided, power generation can be performed by effectively using the energy at the time of braking, and energy loss can be reduced.
When applied to wheel bearings, the thermal energy during braking can be used as a power source for sensors, etc., improving automobile fuel efficiency, reducing the weight of the automobile by reducing the length of the wire harness, and braking pads The effect of reducing the wear of the steel is obtained.

この発明の一実施形態を図１および図２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。
この発電機付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 cross-sectional view in FIG. 1, the bearing in the generator-equipped bearing includes an outer member 1 in which a double row rolling surface 3 is formed on the inner periphery, and a rolling surface facing each of the rolling surfaces 3. 4, and the outer member 1 and the outer member 1 and the double row rolling elements 5 interposed between the rolling surfaces 3 and 4 of the inner member 2. 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 back to back. 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 wheel mounting, 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.

この車輪用軸受において、固定輪である外方部材１と回転輪である内方部材２の間に、発電機２１が設けられている。発電機２１は、両列の転動体５，５間に配置されている。発電機２１は、両列の転動体５，５間に限らず、内方部材２と外方部材１間の端部に配置しても良い。   In this wheel bearing, a generator 21 is provided between an outer member 1 that is a fixed wheel and an inner member 2 that is a rotating wheel. The generator 21 is disposed between the rolling elements 5 and 5 in both rows. The generator 21 is not limited to between the rolling elements 5 and 5 in both rows, and may be disposed at the end between the inner member 2 and the outer member 1.

発電機２１はコイルを含むリング状のステータ２３と、磁石を含むリング状のロータ２５から構成される。ステータ２３のコイルは、例えば保護用の隔壁で被覆される。ロータ２５は、この実施形態では、取付用のリングおよびその外径面に設けられた磁石からなる。ステータ２３は固定輪である外方部材１の内径面に、ロータ２５は回転輪である内方部材２の外径面に、それぞれ圧入もしくは接着などの方法で固定されている。これらステータ２３およびロータ２５は、ラジアル方向に対向するように位置決めされる。なお、固定輪である外方部材１や、回転輪である内方部材２に、ステータ２３やロータ２５を軸方向に対して位置決めする段差や突部（図示せず）などを設けても良い。   The generator 21 includes a ring-shaped stator 23 including a coil and a ring-shaped rotor 25 including a magnet. The coil of the stator 23 is covered with a protective partition, for example. In this embodiment, the rotor 25 includes a mounting ring and a magnet provided on the outer diameter surface thereof. The stator 23 is fixed to the inner diameter surface of the outer member 1 that is a fixed ring, and the rotor 25 is fixed to the outer diameter surface of the inner member 2 that is a rotating ring by a method such as press fitting or bonding. The stator 23 and the rotor 25 are positioned so as to face each other in the radial direction. Note that the outer member 1 that is a fixed ring or the inner member 2 that is a rotating ring may be provided with a step or a protrusion (not shown) that positions the stator 23 and the rotor 25 in the axial direction. .

固定輪である外方部材１には、ステータ２３のコイルに接続された配線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ている。コイルを有するステータ２３を組付ける場合、配線２７を予め配線孔２９に通した状態で、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 29 through which the wiring 27 connected to the coil of the stator 23 passes from the outer diameter surface to the inner diameter surface. When assembling the stator 23 having a coil, it is only necessary to fit the inner diameter surface of the outer member 1 from the axial direction in a state where the wiring 27 is passed through the wiring hole 29 in advance.

外方部材１の外径面外に引き出される配線２７は、発電機２１を制御する制御基盤３０に接続され、この制御基盤３０は例えば外方部材１の外径面に設置される。制御基盤３０は、制動指令に応答して発電機２１を能動化させ前記制動指令の解除により発電機２１を非能動化させる発電機能オンオフ手段３１を有する。発電機能オンオフ手段３１は、例えば発電機２１のコイルの回路を開閉するスイッチング手段等からなり、コイルの回路を開くことで、電流が流れず、発電機として機能しない非能動化状態とし、コイルの回路を閉じることで、電流が流れて発電機として機能する能動状態とするものである。上記制動指令は、車両の電気制御ユニット（ＥＣＵ）から車両の接触式のブレーキに与えられるブレーキ指令であり、このブレーキ指令が発電機２１の制御基盤３０にも与えられる。すなわち、発電機２１はブレーキ機能を有するので、車両の接触式のブレーキと併用されて、車両のブレーキ機能の一部を担う。具体的には、ＥＣＵからブレーキ指令があったときだけ発電機２１を作動させることで、発電機２１を補助ブレーキとして使用する。   The wiring 27 drawn out of the outer diameter surface of the outer member 1 is connected to a control base 30 that controls the generator 21, and this control base 30 is installed on the outer diameter surface of the outer member 1, for example. The control board 30 includes power generation function on / off means 31 that activates the generator 21 in response to a braking command and deactivates the generator 21 by releasing the braking command. The power generation function on / off means 31 includes, for example, switching means for opening and closing a coil circuit of the generator 21. By opening the coil circuit, a current does not flow and an inactive state that does not function as a generator is established. By closing the circuit, an electric current flows and an active state that functions as a generator is obtained. The braking command is a braking command given from the vehicle electrical control unit (ECU) to the contact brake of the vehicle, and this braking command is also given to the control board 30 of the generator 21. That is, since the generator 21 has a brake function, it is used in combination with a vehicle contact-type brake and bears a part of the vehicle brake function. Specifically, the generator 21 is used as an auxiliary brake by operating the generator 21 only when there is a brake command from the ECU.

発電機２１は前記制御基盤３０を介してキャパシタ３２に電気的に接続されており、発電機２１で発電した電力はキャパシタ３２に蓄電される。制御基盤３０には、発電機２１で発電した電流の整流，平滑化などを行うレギュレータなどが含まれる。キャパシタ３２に蓄電された電力は、外方部材１に設けられた機器の電源として利用される。ここでは前記機器の一例として、外方部材１の外径面に、車輪に負荷される荷重を検出する荷重センサ３３が設けられ、その近傍に設置された前記キャパシタ３２から荷重センサ３３に電源供給が行なわれる。   The generator 21 is electrically connected to the capacitor 32 via the control board 30, and the electric power generated by the generator 21 is stored in the capacitor 32. The control board 30 includes a regulator for rectifying and smoothing the current generated by the generator 21. The electric power stored in the capacitor 32 is used as a power source for equipment provided in the outer member 1. Here, as an example of the device, a load sensor 33 for detecting a load applied to the wheel is provided on the outer diameter surface of the outer member 1, and power is supplied to the load sensor 33 from the capacitor 32 installed in the vicinity thereof. Is done.

なお、上記構成において、発電機２１の制御基盤３０はＥＣＵに設けても良い。この場合、発電機２１のステータ２５と、ＥＣＵの制御基盤３０との間を、コネクタで連結しても良い。   In the above configuration, the control base 30 of the generator 21 may be provided in the ECU. In this case, the stator 25 of the generator 21 and the control base 30 of the ECU may be connected by a connector.

上記構成によると、ＥＣＵから車両の接触式のブレーキにブレーキ指令が与えられるとき、発電機２１の制御基盤３０にも前記ブレーキ指令が制動指令として与えられ、その制動指令に応答して制御基盤３０の発電機能オンオフ手段３１が発電機２１を能動化させる。これにより、接触式のブレーキと並行して発電機２１が作動して、発電機２１のブレーキ機能が補助ブレーキとして働くことになり、発電機２１のブレーキ作用が有効利用されることでエネルギ損失の低減が可能となる。このように、発電機２１によりブレーキ力が非接触で得られるため、この実施形態のように車輪用軸受に発電機２１を設けた場合、ブレーキパッドの摩耗を低減できる。   According to the above configuration, when a brake command is given from the ECU to the contact brake of the vehicle, the brake command is also given as a braking command to the control board 30 of the generator 21, and the control board 30 responds to the braking command. The power generation function on / off means 31 activates the generator 21. As a result, the generator 21 operates in parallel with the contact-type brake, and the brake function of the generator 21 works as an auxiliary brake. By effectively using the braking action of the generator 21, energy loss is reduced. Reduction is possible. Thus, since the braking force is obtained in a non-contact manner by the generator 21, wear of the brake pads can be reduced when the generator 21 is provided on the wheel bearing as in this embodiment.

また、この実施形態では、発電機２１で発電した電力をキャパシタ３２で蓄電するようにしているので、キャパシタ３２に蓄電した電力を、車輪用軸受の例えば外方部材１に設置される荷重センサ３３などの機器の電源として利用することができる。これにより、ブレーキ時に放出される熱エネルギを荷重センサ３３などの機器の電源として利用できることになり、自動車の燃費が向上する。また、荷重センサ３３などの機器への給電経路が簡略になるため、ワイヤハーネスの長さも短縮化され、自動車の軽量化に繋がる。   In this embodiment, since the electric power generated by the generator 21 is stored in the capacitor 32, the electric power stored in the capacitor 32 is used as the load sensor 33 installed in the outer member 1 of the wheel bearing, for example. It can be used as a power source for such devices. As a result, the thermal energy released during braking can be used as a power source for devices such as the load sensor 33, and the fuel efficiency of the vehicle is improved. In addition, since the power supply path to the device such as the load sensor 33 is simplified, the length of the wire harness is also shortened, leading to weight reduction of the automobile.

図３は、この発明の他の実施形態を示す。この実施形態では、図１に示す実施形態の発電機付軸受において、発電機２１が、磁石を含むリング状のステータ２３と、コイルを含むリング状のロータ２５とで構成される。ステータ２３は、取付用のリングおよびその内径面に設けられた磁石からなる。ロータ２５のコイルは、例えば保護用の隔壁で被覆される。この実施形態でも、ステータ２３は固定輪である外方部材１の内径面に、ロータ２５は回転輪である内方部材２の外径面に、それぞれ圧入もしくは接着などの方法で固定されている。   FIG. 3 shows another embodiment of the present invention. In this embodiment, in the bearing with a generator of the embodiment shown in FIG. 1, the generator 21 includes a ring-shaped stator 23 including a magnet and a ring-shaped rotor 25 including a coil. The stator 23 includes a mounting ring and a magnet provided on an inner diameter surface thereof. The coil of the rotor 25 is covered with a protective partition, for example. Also in this embodiment, the stator 23 is fixed to the inner diameter surface of the outer member 1 that is a fixed ring, and the rotor 25 is fixed to the outer diameter surface of the inner member 2 that is a rotating ring by a method such as press fitting or bonding. .

回転輪である内方部材２のハブ輪９には、ロータ２５のコイルに接続された配線３７を通す配線孔３９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３７を軸方向に沿って内部に這わす配線溝４０が設けられている。コイルを有するロータ２５を組付ける場合、配線３７を予め配線孔３９に通した状態で、ハブ輪９の外径面に嵌合すれば良い。   The hub wheel 9 of the inner member 2 that is a rotating wheel is provided with a wiring hole 39 through which the wiring 37 connected to the coil of the rotor 25 passes from the outer diameter surface to the inner diameter surface. A wiring groove 40 is provided in a part of the wiring groove 37 to wrap the wiring 37 in the axial direction. When assembling the rotor 25 having a coil, the wire 37 may be fitted to the outer diameter surface of the hub wheel 9 in a state where the wire 37 is passed through the wiring hole 39 in advance.

配線３７の先端にはコネクタ４２が接続され、このコネクタ４２を介してロータ２５のコイルがキャパシタ３２に接続される。これにより、発電機２１で発電した電力がキャパシタ３２に蓄電される。コネクタ４２は、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。キャパシタ３２は、内方部材２に取付けても良く、また内方部材２に取付けられる車輪やそのタイヤ、あるいはブレーキディスク等の部材に取付けても良い。ここでは、キャパシタ３２に蓄電された電力は、回転輪である内方部材２側に設けられたセンサ類等の機器の電源として利用される。例えば、ハブ輪９の車輪取付用ハブフランジ９ａの根元部に制動部品と共に嵌合する車輪（図示せず）には、その車輪に負荷される荷重を歪みとして検出する荷重センサ３３が前記機器として設けられる。その車輪における前記荷重センサ３３の近傍に前記キャパシタ３２が配置されて、キャパシタ３２に蓄電された電力が荷重センサ３４の電源として供給される。なお、上記車輪のタイヤに空気圧センサ（図示せず）を設け、その空気圧センサの電源としてキャパシタ３２の電力を用いるようにしても良い。   A connector 42 is connected to the tip of the wiring 37, and the coil of the rotor 25 is connected to the capacitor 32 via the connector 42. As a result, the electric power generated by the generator 21 is stored in the capacitor 32. The connector 42 is fixed to the end face on the outboard side at an inner diameter portion than the pilot portion 13 of the hub wheel 9. The capacitor 32 may be attached to the inner member 2, or may be attached to a member such as a wheel attached to the inner member 2, a tire thereof, or a brake disk. Here, the electric power stored in the capacitor 32 is used as a power source for devices such as sensors provided on the inner member 2 side, which is a rotating wheel. For example, a load sensor 33 that detects a load applied to the wheel as a strain is applied to the wheel (not shown) fitted together with a braking component at the base of the hub flange 9a for mounting the wheel of the hub wheel 9 as the device. Provided. The capacitor 32 is arranged near the load sensor 33 on the wheel, and the electric power stored in the capacitor 32 is supplied as a power source for the load sensor 34. Note that an air pressure sensor (not shown) may be provided in the tire of the wheel, and the power of the capacitor 32 may be used as a power source of the air pressure sensor.

車体側には前記発電機２１を制御する制御基盤３０が設けられ、この制御基盤３０はＥＣＵから与えられるブレーキ指令を受ける。一方、内方部材２の外径面における発電機ロータ２５の近傍には前記制御基盤３０に与えられるブレーキ指令を制動指令として受け、発電機２１を能動化させる発電機能オンオフ手段３１が設けられる。制御基盤３０からは、前記ブレーキ指令とその他の制御信号が出力され、これらの信号はワイヤレス伝達手段４３を介してワイヤレスで前記発電機能オンオフ手段３１に送信される。発電機能オンオフ手段３１は、前記制動指令（ブレーキ指令）に応答して発電機２１を能動化させ、制動指令の解除により発電機２１を非能動化させる機能部のほか、制御基盤３０からの他の制御信号により、能動中の発電機２１に各種制御を行う機能部も持つ。   A control board 30 for controlling the generator 21 is provided on the vehicle body side, and the control board 30 receives a brake command given from the ECU. On the other hand, in the vicinity of the generator rotor 25 on the outer diameter surface of the inner member 2, a power generation function on / off means 31 that receives a brake command given to the control board 30 as a braking command and activates the generator 21 is provided. From the control board 30, the brake command and other control signals are output, and these signals are transmitted to the power generation function on / off means 31 wirelessly via the wireless transmission means 43. The power generation function on / off means 31 activates the power generator 21 in response to the braking command (brake command) and deactivates the power generator 21 by releasing the braking command. The control unit also has a functional unit that performs various controls on the active generator 21.

ワイヤレス伝達手段４３は、車体側に設けられる第１の送受信部４４と、内方部材２側に設けられる第２の送受信部４５とでなり、第１の送受信部４４と第２の送受信部４５との間で双方向のワイヤレス送受信が可能とされる。制御基盤３０からの出力信号は、第１の送受信部４４からワイヤレスで発信されて、第２の送受信部４５で受信される。第１の送受信部４４は制御基盤３０の近傍に配置されて、制御基盤３０に電気的に接続されている。第２の送受信部４５は、内方部材２の外径面における前記発電機能オンオフ手段３１に隣接した位置に設けられ、発電機能オンオフ手段３１に電気的に接続されている。
なお、図示しないが、内方部材２には、ロータ２５のコイルから、配線３７、コネクタ４２、およびキャパシタ３２を経て荷重センサ３３に至る給電経路に沿って、荷重センサ３３の出力信号を第２の送受信部４５に送信する信号経路が設けられ、荷重センサ３３の検出信号をワイヤレス伝達手段４３で車体側の制御基盤３０に送信し、さらに制御基盤３０からＥＣＵに送信するようにされている。その他の構成は、図１の実施形態の場合と同様である。 The wireless transmission means 43 includes a first transmission / reception unit 44 provided on the vehicle body side and a second transmission / reception unit 45 provided on the inner member 2 side, and the first transmission / reception unit 44 and the second transmission / reception unit 45. Bidirectional wireless transmission / reception is possible. An output signal from the control board 30 is wirelessly transmitted from the first transmission / reception unit 44 and received by the second transmission / reception unit 45. The first transmission / reception unit 44 is disposed in the vicinity of the control board 30 and is electrically connected to the control board 30. The second transmitting / receiving unit 45 is provided at a position adjacent to the power generation function on / off means 31 on the outer diameter surface of the inner member 2, and is electrically connected to the power generation function on / off means 31.
Although not shown, the output signal of the load sensor 33 is supplied to the inner member 2 along the power feeding path from the coil of the rotor 25 to the load sensor 33 through the wiring 37, the connector 42, and the capacitor 32. A signal path for transmission to the transmission / reception unit 45 is provided, and the detection signal of the load sensor 33 is transmitted to the control base 30 on the vehicle body side by the wireless transmission means 43 and further transmitted from the control base 30 to the ECU. Other configurations are the same as those in the embodiment of FIG.

この実施形態の場合も、ＥＣＵから車両の接触式のブレーキにブレーキ指令が与えられるとき、発電機２１の制御基盤３０に前記ブレーキ指令が制動指令として与えられ、その制動指令がワイヤレス伝達手段４３を介して回転輪である内方部材２に設けられた発電機能オンオフ手段３１に伝達される。そこで、発電機能オンオフ手段３１は、前記制動指令に応答して発電機２１を能動化させる。これにより、接触式のブレーキと並行して発電機２１が作動して、発電機２１のブレーキ機能が補助ブレーキとして働く。   Also in this embodiment, when the brake command is given from the ECU to the contact brake of the vehicle, the brake command is given as a braking command to the control base 30 of the generator 21, and the braking command is transmitted to the wireless transmission means 43. To the power generation function on / off means 31 provided on the inner member 2 which is a rotating wheel. Therefore, the power generation function on / off means 31 activates the generator 21 in response to the braking command. Thereby, the generator 21 operates in parallel with the contact-type brake, and the brake function of the generator 21 works as an auxiliary brake.

発電機２１で発電した電力は、配線３７およびコネクタ４２を経てキャパシタ３２で蓄電され、キャパシタ３２に蓄電された電力が、車輪用軸受の回転輪側に設置される荷重センサ３３などの機器の電源として利用される。この場合も、ブレーキ時に放出される熱エネルギを荷重センサ３３などの機器の電源として利用できるので、自動車の燃費が向上する。また、荷重センサ３３などの機器への給電経路が簡略になるため、ワイヤハーネスの長さも短縮化され、自動車の軽量化に繋がる。   The electric power generated by the generator 21 is stored in the capacitor 32 via the wiring 37 and the connector 42, and the electric power stored in the capacitor 32 is a power source for devices such as the load sensor 33 installed on the rotating wheel side of the wheel bearing. Used as Also in this case, the heat energy released during braking can be used as a power source for devices such as the load sensor 33, so that the fuel efficiency of the vehicle is improved. In addition, since the power supply path to the device such as the load sensor 33 is simplified, the length of the wire harness is also shortened, leading to weight reduction of the automobile.

図４は、図３の実施形態に用いられる発電機２１の一例を示す。この発電機２１は、ラジアルギャップ型のクローポール発電機である。ステータ２３は、取付用のリング２３ａおよびその内径面に設けられた磁石２２からなる。磁石２２は、円周方向に磁極Ｎ，Ｓが交互に並んで設けられた多極磁石とされている。ロータ２５は、ステータ２３と同心のリング中心Ｏを持つリング状のヨーク２５ａと、このヨーク２５ａ内に収められたコイル２４とでなる。ヨーク２５ａは、軸方向に対面するリング状の２つのヨーク構成部材２５ａａ，２５ａｂを内径部で組み合わせたものであり、両ヨーク構成部材２５ａａ，２５ａｂに、互いに隙間を介して噛み合う複数の爪部ａ，ｂが設けられたクローポール型とされている。クローポール発電機は、小型で発電効率が良いという利点がある。   FIG. 4 shows an example of the generator 21 used in the embodiment of FIG. The generator 21 is a radial gap type claw pole generator. The stator 23 includes a mounting ring 23a and a magnet 22 provided on the inner diameter surface thereof. The magnet 22 is a multipolar magnet in which magnetic poles N and S are alternately arranged in the circumferential direction. The rotor 25 includes a ring-shaped yoke 25a having a ring center O concentric with the stator 23, and a coil 24 housed in the yoke 25a. The yoke 25a is a combination of two ring-shaped yoke constituent members 25aa and 25ab facing in the axial direction at the inner diameter portion, and a plurality of claw portions a that mesh with the yoke constituent members 25aa and 25ab via a gap. , B are claw pole type. The claw pole generator has the advantage of being small and having good power generation efficiency.

図５は、図３の実施形態の発電機２１に用いられるラジアルギャップ型発電機の他の例を示す。ステータ２３は、円周方向に磁極Ｎ，Ｓが交互に並んで設けられたリング状の多極磁石である。ロータ２５は、ヨーク２５ｂの外周部に円周方向に並んで外径側へ突出して設けられた各突部２５ｂａに、コイル２４を構成する個別のコイル２４ａが巻回されている。ロータ２５の側面および外径面にはコイル２４を保護するための合成樹脂等の非磁性体で作られた薄い隔壁を７２を設けている。個別コイル２４ａ間の隙間には、モールド樹脂７１による樹脂モールドなどで埋めてある。なお、アキシアルギャップ型発電機のロータについても、上記と同様の構成にすることが可能である。   FIG. 5 shows another example of a radial gap generator used in the generator 21 of the embodiment of FIG. The stator 23 is a ring-shaped multipolar magnet in which magnetic poles N and S are alternately arranged in the circumferential direction. In the rotor 25, individual coils 24a constituting the coil 24 are wound around the respective protrusions 25ba provided on the outer periphery of the yoke 25b so as to protrude in the circumferential direction in the circumferential direction. A thin partition 72 made of a nonmagnetic material such as a synthetic resin for protecting the coil 24 is provided on the side surface and the outer diameter surface of the rotor 25. The gaps between the individual coils 24a are filled with a resin mold or the like using a mold resin 71. Note that the rotor of the axial gap generator can have the same configuration as described above.

なお、上記各実施形態は、外方部材１を固定輪としたが、この発明は内方部材が固定輪で外方部材が回転輪となる車輪用軸受にも適用することができる。   In each of the above embodiments, the outer member 1 is a fixed ring, but the present invention can also be applied to a wheel bearing in which the inner member is a fixed ring and the outer member is a rotating wheel.

また、上記各実施形態では、発電機２１を両列の転動体５，５間に配置しているが、軸受の軸方向端部に設けても良い。また、上記各実施形態では、車輪用軸受に適用した場合について示したが、他の用途の軸受に適用しても上記と同様の作用効果を得ることができる。   Moreover, in each said embodiment, although the generator 21 is arrange | positioned between the rolling elements 5 and 5 of both rows, you may provide in the axial direction edge part of a bearing. In each of the above embodiments, the case where the present invention is applied to a wheel bearing has been described. However, the same effect as described above can be obtained even when applied to a bearing for other purposes.

この発明の一実施形態にかかる発電機付軸受の断面図である。It is sectional drawing of the bearing with a generator concerning one Embodiment of this invention. 同発電機付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 bearing with the generator from the inboard side. 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. （Ａ）は同実施形態に用いられるクローポール型発電機の部分断面図、（Ｂ）はそのステータを外径側から見た部分展開図である。(A) is the fragmentary sectional view of the claw pole type | mold generator used for the embodiment, (B) is the partial expanded view which looked at the stator from the outer diameter side. （Ａ）は同実施形態に用いられるラジアルギャップ型発電機の部分正面図、（Ｂ）はその部分側面図である。(A) is the partial front view of the radial gap type generator used for the embodiment, (B) is the partial side view.

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
２１…発電機
２３…ステータ
２５…ロータ
３１…発電機能オンオフ手段
３２…キャパシタ
３３…荷重センサ（機器）
４３…ワイヤレス伝達手段 1. Outer member (fixed ring)
2 ... Inward member (rotating wheel)
3, 4 ... rolling surface 5 ... rolling element 21 ... generator 23 ... stator 25 ... rotor 31 ... power generation function on / off means 32 ... capacitor 33 ... load sensor (equipment)
43 ... Wireless transmission means

Claims (6)

固定輪と回転輪の対向する転走面間に転動体を介在させた転がり軸受において、
前記固定輪に設けられたステータ、および回転輪に設けられたロータを有し、前記ステータおよびロータのいずれか一方が磁石を含み、他方がコイルを含む発電機を備え、制動指令に応答して前記発電機を能動化させ前記制動指令の解除により前記発電機を非能動化させる発電機能オンオフ手段を設けたことを特徴とする発電機付軸受。 In rolling bearings in which rolling elements are interposed between the rolling surfaces facing the fixed ring and the rotating ring,
A stator provided on the fixed wheel and a rotor provided on the rotating wheel, wherein either the stator or the rotor includes a magnet, and the other includes a generator including a coil in response to a braking command; A generator-equipped bearing comprising: a power generation function on / off unit that activates the generator and deactivates the generator by releasing the braking command. 請求項１において、前記発電機の発電した電力を蓄電するキャパシタを設けた発電機付軸受。   The bearing with a generator according to claim 1, wherein a capacitor for storing electric power generated by the generator is provided. 請求項１または請求項２において、前記転がり軸受が、複列の転走面が形成された固定輪と、この固定輪の各転走面に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である発電機付軸受。   3. The rolling bearing according to claim 1, wherein the rolling bearing is opposed to a fixed ring formed with a double row rolling surface, and a rotating wheel formed with a rolling surface facing each rolling surface of the fixed wheel, A generator-equipped bearing, which is a wheel bearing that includes a double-row rolling element interposed between rolling surfaces and that rotatably supports the wheel with respect to the vehicle body. 請求項３において、前記発電機は、車両の接触式のブレーキと併用されるものであり、前記制動指令は、車両の電気制御ユニットから前記ブレーキに与えられるブレーキ指令である発電機付軸受。   4. The bearing with a generator according to claim 3, wherein the generator is used in combination with a contact-type brake of a vehicle, and the braking command is a braking command given to the brake from an electric control unit of the vehicle. 請求項４において、前記ステータがコイルを有し、前記固定輪に、前記発電機能オンオフ手段を有し前記発電機を制御する制御基盤を設けた発電機付軸受。   5. The bearing with a generator according to claim 4, wherein the stator has a coil, and the stationary wheel has the power generation function on / off means and a control base for controlling the generator. 請求項４において、前記ロータが前記コイルを有し、前記ステータが前記磁石を有し、前記回転輪またはこの回転輪に取付けられて回転輪と共に回転する部材に、前記発電機の発電した電力を蓄電するキャパシタ、およびこのキャパシタの蓄電した電力を用いる機器を設け、前記回転輪に前記発電機能オンオフ手段を設け、前記固定輪と回転輪との間に前記制動指令および前記機器の出力をワイヤレスで伝達するワイヤレス伝達手段を設けた発電機能付軸受。   5. The electric power generated by the generator is applied to the rotating wheel or a member that is attached to the rotating wheel and rotates together with the rotating wheel. A capacitor for storing electricity and a device using the power stored in the capacitor are provided, the power generation function on / off means is provided on the rotating wheel, and the braking command and the output of the device are wirelessly provided between the fixed wheel and the rotating wheel. A bearing with a power generation function provided with wireless transmission means for transmission.
JP2007161099A 2007-06-19 2007-06-19 Bearing with power generator Pending JP2009005430A (en)

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WO2012083977A1 (en) * 2010-12-20 2012-06-28 Aktiebolaget Skf (Publ) Power generator integrated with bearing
WO2012152537A1 (en) * 2011-05-10 2012-11-15 Schaeffler Technologies AG & Co. KG Anti-friction bearing, in particular two-row anti-friction bearing, having a power generation unit, in particular for mounting a roller
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US20150316094A1 (en) * 2012-12-10 2015-11-05 Schaeffler Technologies AG & Co. KG Bearing, more particularly rolling bearing
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CN103384774A (en) * 2010-12-20 2013-11-06 Skf公司 Power generator integrated with bearing
WO2012083977A1 (en) * 2010-12-20 2012-06-28 Aktiebolaget Skf (Publ) Power generator integrated with bearing
WO2012152537A1 (en) * 2011-05-10 2012-11-15 Schaeffler Technologies AG & Co. KG Anti-friction bearing, in particular two-row anti-friction bearing, having a power generation unit, in particular for mounting a roller
CN103534498B (en) * 2011-05-10 2015-12-23 舍弗勒技术股份两合公司 Be particularly useful for the rolling bearing with source generating unit of bearing roller, especially double-row bearing
CN103534498A (en) * 2011-05-10 2014-01-22 谢夫勒科技股份两合公司 Anti-friction bearing, in particular two-row anti-friction bearing, having a power generation unit, in particular for mounting a roller
CN102996655A (en) * 2011-09-16 2013-03-27 Skf公司 Bearing and wind power plant
CN103917792A (en) * 2011-10-06 2014-07-09 Skf公司 Power harvesting bearing configuration
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US9097135B2 (en) 2011-10-06 2015-08-04 Aktiebolaget Skf Power harvesting bearing configuration
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US9109460B2 (en) 2011-10-06 2015-08-18 Aktiebolaget Skf Power harvesting bearing configuration
US20150316094A1 (en) * 2012-12-10 2015-11-05 Schaeffler Technologies AG & Co. KG Bearing, more particularly rolling bearing
WO2015058747A1 (en) * 2013-10-21 2015-04-30 Schaeffler Technologies AG & Co. KG Rolling bearing with electric generator
WO2015058762A1 (en) * 2013-10-21 2015-04-30 Schaeffler Technologies AG & Co. KG Rolling bearing with a modular, integrated electric generator
US11932050B2 (en) 2017-09-22 2024-03-19 Consolidated Metco, Inc. Wheel hub
CN111566369A (en) * 2018-01-18 2020-08-21 舍弗勒技术股份两合公司 Method for operating a bearing having at least a first energy supply module and a second energy supply module
CN113165451A (en) * 2018-11-21 2021-07-23 美国联合金属制品股份有限公司 Wheel end arrangement with a generator
CN113165451B (en) * 2018-11-21 2023-12-01 美国联合金属制品股份有限公司 Wheel end device with generator
US11915530B2 (en) 2019-10-09 2024-02-27 Consolidated Metco, Inc. Wheel end monitoring apparatus, fastener, and method

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