JP2018007381A - Magneto-rheological fluid device unit - Google Patents

Magneto-rheological fluid device unit Download PDF

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JP2018007381A
JP2018007381A JP2016130096A JP2016130096A JP2018007381A JP 2018007381 A JP2018007381 A JP 2018007381A JP 2016130096 A JP2016130096 A JP 2016130096A JP 2016130096 A JP2016130096 A JP 2016130096A JP 2018007381 A JP2018007381 A JP 2018007381A
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magnetorheological fluid
fluid device
passive body
unit
magneto
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JP6953069B2 (en
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修一 赤岩
Shuichi Akaiwa
修一 赤岩
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Kurimoto Ltd
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Abstract

PROBLEM TO BE SOLVED: To save energy in a magneto-rheological fluid device which is provided to brake the rotation of a passive body rotating with external force, and to freely control the rotational operation of the passive body without depending on the external force.SOLUTION: The magneto-rheological fluid device unit includes: a passive body 2 rotated by external force; a magneto-rheological fluid device 4; an electric motor 5; and a motor current supply unit 7. The magneto-rheological fluid device 4 includes: a rotation part 11, rotated in connection with the passive body 2, and an electromagnet 23 which applies a magnetic field to a magneto-rheological fluid 14, to cause the rotation part 11 to generate a rotational load according to the strength of the magnetic field which is applied to the magneto-rheological fluid. The electric motor 5 includes a revolving shaft 5b which is rotated in connection with the rotation part 11 of the magneto-rheological fluid device 4. The motor current supply unit 7 can set the feeding terminal of the electric motor 5 to be in a short-circuit state, an open state or a power supply state.SELECTED DRAWING: Figure 1

Description

本発明は、外力により回転する受動体に対して、磁気粘性流体に付与する磁場の強さを変えることにより所望の回転負荷を付与する磁気粘性流体装置を備えた磁気粘性流体装置ユニットに関する。   The present invention relates to a magnetorheological fluid device unit including a magnetorheological fluid device that applies a desired rotational load to a passive body that rotates by an external force by changing the strength of a magnetic field applied to the magnetorheological fluid.

従来より、磁気粘性流体に付与する磁場の強さを調整することにより、所望の回転負荷を付与することができる磁気粘性流体装置が知られている（例えば特許文献１、２を参照。）。特許文献１、２に開示された磁気粘性流体装置は、電磁石を備えており、電磁石に供給する電流の大きさを変えることにより、回転負荷を調整ないし制御することができる。   2. Description of the Related Art Conventionally, there is known a magnetorheological fluid device that can impart a desired rotational load by adjusting the strength of a magnetic field imparted to the magnetorheological fluid (see, for example, Patent Documents 1 and 2). The magnetorheological fluid devices disclosed in Patent Documents 1 and 2 include an electromagnet, and the rotational load can be adjusted or controlled by changing the magnitude of the current supplied to the electromagnet.

特開２００８−２０２７４４号公報JP 2008-202744 A 特開２０１３−１９００３０号公報JP 2013-190030 A

上記従来の磁気粘性流体装置のように、電磁石により磁気粘性流体に磁場を付与するものでは、電力を消費することから省エネルギー化が課題となる。   In the case of applying a magnetic field to a magnetorheological fluid by an electromagnet as in the above conventional magnetorheological fluid device, energy saving is a problem because electric power is consumed.

また、上記従来の磁気粘性流体装置は、受動体に回転負荷を与えるものに過ぎず、自らアクティブに受動体を回転させるものではない。つまり、受動体の回転動力は専ら外力によるものであり、磁気粘性流体装置側から受動体に回転動力を付与することはできない。このため、受動体の回転動作を外力に依存することなく自由にコントロールすることが困難であった。   Further, the conventional magnetorheological fluid device is merely a device that applies a rotational load to the passive body, and does not actively rotate the passive body by itself. That is, the rotational power of the passive body is solely due to external force, and the rotational power cannot be applied to the passive body from the magnetorheological fluid device side. For this reason, it has been difficult to freely control the rotation of the passive body without depending on the external force.

本発明は、上記実情に鑑みて創案されたものであり、磁気粘性流体装置において消費する電力の省エネ化を図ることができ、更に好ましくは、受動体の回転動作を外力に依存することなく自由にコントロールすることが容易になる磁気粘性流体装置ユニットを提供することを目的とする。   The present invention has been made in view of the above circumstances, and can save energy consumed in the magnetorheological fluid device. More preferably, the rotational operation of the passive body can be freely performed without depending on external force. An object of the present invention is to provide a magnetorheological fluid device unit that can be easily controlled.

本発明に係る磁気粘性流体装置ユニットは、外力によって回転される受動体と、磁気粘性流体装置と、電動機と、電気回路とを備えている。前記磁気粘性流体装置は、前記受動体と連動して回転する回転部と、磁気粘性流体に磁場を付与する電磁石とを有し、前記磁気粘性流体に付与する磁場の強さに応じた回転負荷を前記回転部に生じさせるものである。前記電動機は、前記磁気粘性流体装置の前記回転部と連動して回転する回転軸を有するものである。前記電気回路は、前記電動機の給電端子を短絡状態または開放状態にすることが可能なものである。   The magnetorheological fluid device unit according to the present invention includes a passive body rotated by an external force, a magnetorheological fluid device, an electric motor, and an electric circuit. The magnetorheological fluid device includes a rotating unit that rotates in conjunction with the passive body, and an electromagnet that applies a magnetic field to the magnetorheological fluid, and a rotational load corresponding to the strength of the magnetic field applied to the magnetorheological fluid. Is generated in the rotating part. The electric motor has a rotating shaft that rotates in conjunction with the rotating portion of the magnetorheological fluid device. The electric circuit is capable of setting a power supply terminal of the electric motor to a short circuit state or an open state.

かかる構成を備える磁気粘性流体装置ユニットによれば、例えば、電動機の給電端子を短絡状態にすることで、電動機に回生制動力が発生し、その回転制動力によって受動体の回転動作を制動することができるため、磁気粘性流体装置で消費する電力を抑制することができる。   According to the magnetorheological fluid device unit having such a configuration, for example, a regenerative braking force is generated in the motor by short-circuiting the power supply terminal of the motor, and the rotational operation of the passive body is braked by the rotational braking force. Therefore, it is possible to suppress the power consumed by the magnetorheological fluid device.

上記構成を備える磁気粘性流体装置ユニットにおいて、前記電気回路は、前記電動機の給電端子を短絡状態、開放状態または給電状態にすることが可能なものであってもよい。   In the magnetorheological fluid device unit having the above-described configuration, the electric circuit may be capable of setting a power supply terminal of the electric motor to a short circuit state, an open state, or a power supply state.

かかる構成を備える磁気粘性流体装置ユニットによれば、例えば、電動機の給電端子を給電状態にして電動機に給電するとともに、磁気粘性流体装置にも給電することで、受動体の回転動作を外力に依存することなく自由にコントロールすることが容易に行える。   According to the magnetorheological fluid device unit having such a configuration, for example, the power feeding terminal of the motor is set in a power feeding state to feed power to the motor, and the magnetorheological fluid device is also fed, so that the rotational operation of the passive body depends on external force. It is easy to control freely without doing.

上記構成を備える磁気粘性流体装置ユニットにおいて、前記磁気粘性流体装置の前記回転部と前記受動体との間に、前記磁気粘性流体装置側から前記受動体側へ向かって回転速度を減じる減速機が連結されたものであってもよい。   In the magnetorheological fluid device unit having the above-described configuration, a speed reducer that reduces the rotational speed from the magnetorheological fluid device side to the passive body side is connected between the rotating portion of the magnetorheological fluid device and the passive body. It may be what was done.

本発明に係る磁気粘性流体装置ユニットによれば、例えば、磁気粘性流体装置で消費する電力の省エネ化が図られる。   According to the magnetorheological fluid device unit of the present invention, for example, energy saving of electric power consumed by the magnetorheological fluid device can be achieved.

本発明の実施の形態に係る磁気粘性流体装置ユニットの構成を示す図である。It is a figure which shows the structure of the magnetorheological fluid apparatus unit which concerns on embodiment of this invention.

以下、本発明の実施形態に係る磁気粘性流体装置ユニットについて図面を参照しつつ説明する。図１に示すように、本発明の実施形態に係る磁気粘性流体装置ユニット１は、受動体２、減速機３、磁気粘性流体装置４、電動機５、磁気粘性流体装置用電流供給部６、電動機用電流供給部７、ユニット制御部８等を備えている。   Hereinafter, a magnetorheological fluid device unit according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a magnetorheological fluid device unit 1 according to an embodiment of the present invention includes a passive body 2, a speed reducer 3, a magnetorheological fluid device 4, an electric motor 5, a current supplying unit 6 for the magnetorheological fluid device, and an electric motor. Current supply unit 7, unit control unit 8 and the like.

受動体２は、外力によって回転されるものである。例えば、ユーザの使用行為、操作行為等に伴って回転される部品、部材等が受動体２の例として挙げられる。   The passive body 2 is rotated by an external force. For example, parts, members, and the like that are rotated in accordance with a user's usage act, operation act, and the like are examples of the passive body 2.

減速機３は、磁気粘性流体装置４の回転部１１と受動体２の出力シャフトとの間に連結されており、磁気粘性流体装置４側の回転動力が、回転速度を減じて受動体２側へと伝達される。なお、減速機の本体はユニット取付部２２に取付けられている。   The speed reducer 3 is connected between the rotating part 11 of the magnetorheological fluid device 4 and the output shaft of the passive body 2, and the rotational power on the magnetorheological fluid device 4 side reduces the rotation speed to the passive body 2 side. Is transmitted to. The main body of the speed reducer is attached to the unit attachment portion 22.

磁気粘性流体装置４は、その内部に磁気粘性流体が封入されており、電磁石に印加する電流値を変えることにより、磁気粘性流体に付与する磁場の大きさを変えることができ、これにより、その回転部１１に付与する回転負荷を変えることができる。なお、磁気粘性流体装置４の外部もユニット取付部２２に取付けられている。   The magnetorheological fluid device 4 is filled with the magnetorheological fluid, and the magnitude of the magnetic field applied to the magnetorheological fluid can be changed by changing the current value applied to the electromagnet. The rotational load applied to the rotating unit 11 can be changed. The outside of the magnetorheological fluid device 4 is also attached to the unit attachment portion 22.

例えば、図１に概略が例示された磁気粘性流体装置４では、シャフト１２とシャフト１２に回転一体に固定された円板１３とで回転部１１が構成されている。円板１３は、磁気粘性流体１４を封入した磁気粘性流体室１６に回転自在に配置されている。磁気粘性流体室１６は、中央に軸穴が形成された磁性体からなる円柱体１７と、図１に示すように内部にコイル１８が巻設されるとともに中央に軸穴が形成されたヨーク１９と、円柱体１７およびヨーク１９の外周に嵌め付けられた筒状の非磁性体からなるカバー２１と、コイル１８とで主に構成されている。コイル１８に電流が印加されると、図１の矢印Ｐに示す方向に沿って磁路が形成される。この磁路は、円板１３を板厚方向に貫通し、円板１３の周囲の磁気粘性流体に磁場を印加する。磁気粘性流体１４に磁場が印加されると、磁気粘性流体１４にクラスターが形成され、ずり応力が発現することにより、回転部１１の回転動作が制動される。   For example, in the magnetorheological fluid device 4 schematically illustrated in FIG. 1, the rotating portion 11 is configured by a shaft 12 and a disk 13 that is rotatably and integrally fixed to the shaft 12. The disc 13 is rotatably disposed in a magnetorheological fluid chamber 16 in which a magnetorheological fluid 14 is enclosed. The magnetorheological fluid chamber 16 includes a cylindrical body 17 made of a magnetic material having a shaft hole formed in the center, and a yoke 19 having a coil 18 wound therein and a shaft hole formed in the center as shown in FIG. And a cover 21 made of a cylindrical nonmagnetic material fitted to the outer periphery of the cylindrical body 17 and the yoke 19, and the coil 18. When a current is applied to the coil 18, a magnetic path is formed along the direction indicated by the arrow P in FIG. This magnetic path penetrates the disk 13 in the thickness direction, and applies a magnetic field to the magnetorheological fluid around the disk 13. When a magnetic field is applied to the magnetorheological fluid 14, clusters are formed in the magnetorheological fluid 14, and shearing stress is generated, thereby braking the rotating operation of the rotating unit 11.

電動機５は、その本体部５ａがユニット取付部２２に取付けられ、その回転軸５ｂが磁気粘性流体装置４のシャフト１２に連結されている。   The electric motor 5 has a main body portion 5 a attached to the unit attachment portion 22, and a rotating shaft 5 b connected to the shaft 12 of the magnetorheological fluid device 4.

磁気粘性流体装置用電流供給部６は、ユニット制御部８の指令に従って、磁気粘性流体装置４のコイル１８に電流を供給する。   The magnetorheological fluid device current supply unit 6 supplies current to the coil 18 of the magnetorheological fluid device 4 in accordance with a command from the unit control unit 8.

電動機用電流供給部７は、ユニット制御部８の指令に従って、電動機５の給電端子を短絡状態、開放状態または給電状態に切り替えることが可能な電気回路で構成される。給電端子を短絡させる回路上には、抵抗や可変抵抗を設けても良い。可変抵抗を設けた場合は、後述する回生制動の効き具合を容易に調整することができる。   The electric motor current supply unit 7 is configured by an electric circuit capable of switching the power supply terminal of the electric motor 5 to a short circuit state, an open state, or a power supply state in accordance with an instruction from the unit control unit 8. A resistor or a variable resistor may be provided on the circuit for short-circuiting the power supply terminal. When a variable resistor is provided, the effectiveness of regenerative braking described later can be easily adjusted.

ユニット制御部８は、磁気粘性流体装置ユニット１の全体の制御を司るものであり、外部から入力される様々な情報に基づいて、電磁石２３への給電制御および電動機５への給電制御を行う。なお、ユニット制御部８が受動体２の回転（回転量、回転速度等）を検出できるように、受動体２の回転を検出する回転センサ２４の出力信号がユニット制御部８に入力される。   The unit controller 8 governs overall control of the magnetorheological fluid device unit 1, and performs power supply control to the electromagnet 23 and power supply control to the electric motor 5 based on various information input from the outside. An output signal of the rotation sensor 24 that detects the rotation of the passive body 2 is input to the unit control section 8 so that the unit control section 8 can detect the rotation (rotation amount, rotation speed, etc.) of the passive body 2.

次に、上記構成を備える磁気粘性流体装置ユニット１が実施可能な動作例を説明する。   Next, an operation example in which the magnetorheological fluid device unit 1 having the above configuration can be implemented will be described.

＜磁気粘性流体装置の電源ＯＦＦ、電動機の電源ＯＮ＞
ユニット制御部８は、第１の所定条件下において、磁気粘性流体装置４に給電を行うことなく、電動機５のみに給電を行う（電動機５の給電端子を給電状態にする。）。この場合、磁気粘性流体装置４では、殆ど回転負荷を生じないため（基底トルクによる僅かな回転負荷は生じる。）、電動機５の回転動力は、磁気粘性流体装置４において殆ど低減されることなく減速機３、受動体２へと伝達される。 <Power OFF of Magnetorheological Fluid Device, Power ON of Electric Motor>
The unit control unit 8 supplies power only to the motor 5 without supplying power to the magnetorheological fluid device 4 under the first predetermined condition (the power supply terminal of the motor 5 is set to a power supply state). In this case, since almost no rotational load is generated in the magnetorheological fluid device 4 (a slight rotational load due to the base torque is generated), the rotational power of the electric motor 5 is decelerated with almost no reduction in the magnetorheological fluid device 4. It is transmitted to the machine 3 and the passive body 2.

＜磁気粘性流体装置の電源ＯＦＦ、電動機の電源ＯＦＦ＞
ユニット制御部８は、第２の所定条件下において、磁気粘性流体装置４および電動機５の何れに対しても給電を行わない（電動機５の給電端子は開放状態とする。）。この場合、受動体２には、磁気粘性流体装置４および電動機５の基底トルクのみが作用し、殆ど無負荷状態となる。よって、受動体２は、外力によって自在に回転する。 <Power OFF of Magnetorheological Fluid Device, Power OFF of Electric Motor>
The unit controller 8 does not supply power to either the magnetorheological fluid device 4 or the electric motor 5 under the second predetermined condition (the electric power supply terminal of the electric motor 5 is in an open state). In this case, only the base torque of the magnetorheological fluid device 4 and the electric motor 5 acts on the passive body 2 and is almost unloaded. Therefore, the passive body 2 is freely rotated by an external force.

＜磁気粘性流体装置の電源ＯＦＦ、電動機の電源ショート＞
ユニット制御部８は、第３の所定条件下において、磁気粘性流体装置４に給電を行うことなく、電動機５の給電端子を短絡状態にする。この場合、受動体２が回転動作していることを前提として、電動機５において回生制動力が発生し、当該制動力が磁気粘性流体装置４のシャフト１２および減速機３を介して受動体２の回転動作を制動する。このとき、磁気粘性流体装置ユニット１において一切電力が消費されないため、磁気粘性流体装置４を用いて制動した場合と比較して、省エネ化が図られる。 <Power off of magnetorheological fluid device, power supply short of motor>
The unit controller 8 puts the power supply terminal of the electric motor 5 into a short circuit state without supplying power to the magnetorheological fluid device 4 under the third predetermined condition. In this case, assuming that the passive body 2 is rotating, a regenerative braking force is generated in the electric motor 5, and the braking force is applied to the passive body 2 via the shaft 12 and the speed reducer 3 of the magnetorheological fluid device 4. Brakes the rotational movement. At this time, since no power is consumed in the magnetorheological fluid device unit 1, energy saving can be achieved as compared with the case where braking is performed using the magnetorheological fluid device 4.

＜磁気粘性流体装置の電源ＯＮ、電動機の電源ＯＮ＞
ユニット制御部８は、第４の所定条件下において、磁気粘性流体装置４および電動機５の双方に給電を行う（電動機５の給電端子を給電状態とする。）。この場合、電動機５の回転動力は、磁気粘性流体装置４における制動作用を受けて、減速機３を介して受動体２に入力される。この態様によれば、磁気粘性流体装置４において生じる回転負荷を調整することにより、受動体２を一定トルクで回転させることが可能となる。 <Power ON of Magnetorheological Fluid Device, Power ON of Electric Motor>
The unit control unit 8 supplies power to both the magnetorheological fluid device 4 and the electric motor 5 under a fourth predetermined condition (the power supply terminal of the electric motor 5 is set to a power supply state). In this case, the rotational power of the electric motor 5 is input to the passive body 2 via the speed reducer 3 after receiving a braking action in the magnetorheological fluid device 4. According to this aspect, the passive body 2 can be rotated at a constant torque by adjusting the rotational load generated in the magnetorheological fluid device 4.

＜磁気粘性流体装置の電源ＯＮ、電動機の電源ＯＦＦ＞
ユニット制御部８は、第５の所定条件下において、磁気粘性流体装置４に給電を行い、電動機５に給電を行わない（電動機５の給電端子は開放状態とする。）。この場合、受動体２が回転動作していることを前提として、その回転動力は、減速機３を介して磁気粘性流体装置４において制動される。 <Power ON of Magnetorheological Fluid Device, Power OFF of Electric Motor>
The unit control unit 8 supplies power to the magnetorheological fluid device 4 and does not supply power to the motor 5 under the fifth predetermined condition (the power supply terminal of the motor 5 is in an open state). In this case, on the assumption that the passive body 2 is rotating, the rotational power is braked in the magnetorheological fluid device 4 via the speed reducer 3.

＜磁気粘性流体装置の電源ＯＮ、電動機の電源ショート＞
ユニット制御部８は、第６の所定条件下において、磁気粘性流体装置４に給電を行い、電動機５の給電端子を短絡状態にする。この場合、受動体２が回転動作していることを前提として、磁気粘性流体装置４において制動力が発生するとともに、電動機５においても回生による制動力が発生するため、大きな制動力が得られる。また、電動機５では電力を消費することなく制動力を発生するため、前記第５の所定条件下における制動動作と比較して、省エネ化が図られる。 <Power ON of Magnetorheological Fluid Device, Power Supply Short of Motor>
The unit control unit 8 supplies power to the magnetorheological fluid device 4 under a sixth predetermined condition and puts the power supply terminal of the electric motor 5 into a short circuit state. In this case, on the assumption that the passive body 2 is rotating, a braking force is generated in the magnetorheological fluid device 4 and a braking force due to regeneration is also generated in the electric motor 5, so that a large braking force is obtained. In addition, since the electric motor 5 generates a braking force without consuming electric power, energy saving can be achieved as compared with the braking operation under the fifth predetermined condition.

なお、上記第１〜第６の所定条件は、ユニット制御部８に入力される各種の情報に基づく条件とすることができる。前記各種の情報は特定のものに限定されるわけではないが、例えば、回転センサ２４からの信号により検出される受動体２の回転速度、回転位置等や、ユニット１の外部の装置から提供される情報等が挙げられる。   The first to sixth predetermined conditions can be conditions based on various types of information input to the unit controller 8. The various types of information are not limited to specific information, but are provided, for example, from the rotational speed, rotational position, etc. of the passive body 2 detected by a signal from the rotation sensor 24, or from a device outside the unit 1. Information.

＜他の実施形態＞
既述した実施形態において、ユニット制御部８は、第４の所定条件下において、磁気粘性流体装置４および電動機５の双方に給電を行い、電動機５の回転動力が磁気粘性流体装置４における制動を経て、減速機３を介して受動体２に入力される旨を説明したが、この実施態様については更に応用が可能である。 <Other embodiments>
In the above-described embodiment, the unit control unit 8 supplies power to both the magnetorheological fluid device 4 and the electric motor 5 under the fourth predetermined condition, and the rotational power of the motor 5 performs braking in the magnetorheological fluid device 4. After that, it has been described that the signal is input to the passive body 2 via the speed reducer 3, but this embodiment can be further applied.

例えば、受動体２をユーザの操作行為に伴って回転する部品、部材等（例えば乗り物のハンドル又はこれと連動する部品など）とした場合において、操作行為を行っているユーザに何らかの注意を促すべき事態が発生し、その旨の情報がユニット制御部８に入力された場合に、ユニット制御部８は、第４の所定条件が成立したものとみなして、電動機５を回転させながら、磁気粘性流体装置５に供給する電流値を繰り返し急変させる（例えば電流値をパルス状に変化させる）ようにしてもよい。これにより、受動体２（例えば乗り物のハンドル又はこれと連動する部品など）に回転振動が生じ、ユーザに当該注意を促すことが可能となる。   For example, when the passive body 2 is a part, member, or the like that rotates in accordance with the user's operation action (for example, a vehicle handle or a part that interlocks with this), the user who is performing the operation action should be cautioned. When a situation occurs and information to that effect is input to the unit control unit 8, the unit control unit 8 considers that the fourth predetermined condition is satisfied, and rotates the electric motor 5 while rotating the motor 5. The current value supplied to the device 5 may be repeatedly and suddenly changed (for example, the current value is changed in a pulse shape). As a result, rotational vibration is generated in the passive body 2 (for example, a vehicle handle or a component interlocked therewith), and the user can be alerted.

既述した実施形態に係る磁気粘性流体装置ユニット１は、受動体２と磁気粘性流体装置４との間に減速機３を設けたものであったが、減速機３を省略して、受動体２と磁気粘性流体装置４とを直接連結したものとしてもよい。   The magnetorheological fluid device unit 1 according to the above-described embodiment has the speed reducer 3 provided between the passive body 2 and the magnetorheological fluid device 4. 2 and the magnetorheological fluid device 4 may be directly connected.

本発明は、例えば、外力により回転する受動体の回転動作を制動するためのものとして適用することが可能である。   The present invention can be applied, for example, as a brake for the rotational movement of a passive body that is rotated by an external force.

１ 磁気粘性流体装置ユニット
２ 受動体
３ 減速機
４ 磁気粘性流体装置
５ 電動機
５ｂ 回転軸
７ 電動機用電流供給部（電気回路）
１１ 回転部
１４ 磁気粘性流体
１８ コイル
２３ 電磁石 DESCRIPTION OF SYMBOLS 1 Magnetorheological fluid apparatus unit 2 Passive body 3 Reduction gear 4 Magnetorheological fluid apparatus 5 Electric motor 5b Rotating shaft 7 Current supply part (electric circuit) for electric motors
11 Rotating part 14 Magnetorheological fluid 18 Coil 23 Electromagnet

Claims (3)

外力によって回転される受動体と、
前記受動体と連動して回転する回転部と、磁気粘性流体に磁場を付与する電磁石とを有し、前記磁気粘性流体に付与する磁場の強さに応じた回転負荷を前記回転部に生じさせる磁気粘性流体装置と、
前記磁気粘性流体装置の前記回転部と連動して回転する回転軸を有する電動機と、
前記電動機の給電端子を短絡状態または開放状態にすることが可能な電気回路と、
を備えることを特徴とする磁気粘性流体装置ユニット。 A passive body rotated by external force,
A rotating unit that rotates in conjunction with the passive body; and an electromagnet that applies a magnetic field to the magnetorheological fluid, and causes the rotating unit to generate a rotational load corresponding to the strength of the magnetic field applied to the magnetorheological fluid. A magnetorheological fluid device;
An electric motor having a rotating shaft that rotates in conjunction with the rotating portion of the magnetorheological fluid device;
An electrical circuit capable of short-circuiting or opening the power supply terminal of the motor;
A magnetorheological fluid device unit comprising: 請求項１に記載の磁気粘性流体装置ユニットにおいて、
前記電気回路は、前記電動機の給電端子を短絡状態、開放状態または給電状態にすることが可能なものである、
ことを特徴とする磁気粘性流体装置ユニット。 The magnetorheological fluid device unit according to claim 1,
The electric circuit is capable of setting a power supply terminal of the electric motor to a short circuit state, an open state, or a power supply state.
A magnetorheological fluid device unit. 請求項１又は２に記載の磁気粘性流体装置ユニットにおいて、
前記磁気粘性流体装置の前記回転部と前記受動体との間に、前記磁気粘性流体装置側から前記受動体側へ向かって回転速度を減じる、減速機が連結されたことを特徴とする磁気粘性流体装置ユニット。
In the magnetorheological fluid device unit according to claim 1 or 2,
A magnetorheological fluid characterized in that a reduction gear is connected between the rotating part of the magnetorheological fluid device and the passive body to reduce the rotational speed from the magnetorheological fluid device side toward the passive body side. Equipment unit.
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