JP2014171298A5 - Vibration type driving device and imaging device - Google Patents

Vibration type driving device and imaging device Download PDF

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JP2014171298A5
JP2014171298A5 JP2013041147A JP2013041147A JP2014171298A5 JP 2014171298 A5 JP2014171298 A5 JP 2014171298A5 JP 2013041147 A JP2013041147 A JP 2013041147A JP 2013041147 A JP2013041147 A JP 2013041147A JP 2014171298 A5 JP2014171298 A5 JP 2014171298A5
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vibration type
type driving
driving device
transmission member
rotation transmission
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JP2014171298A (en
JP6164874B2 (en
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Claims (19)

電気−機械エネルギー変換素子と、
前記電気−機械エネルギー変換素子に固定され、前記電気−機械エネルギー変換素子への電圧の印加により振動する振動体と、
前記振動体との加圧接触により摩擦駆動し、該摩擦駆動による回転力を出力軸に伝達する移動体と、
を有する振動型駆動装置であって、
前記移動体の前記回転力の伝達により駆動する冷却手段を備え、
前記冷却手段は、前記移動体よりも速い回転数で駆動することが可能に構成されていることを特徴とする振動型駆動装置。 An electromechanical energy conversion element;
A vibrating body fixed to the electro-mechanical energy conversion element and vibrated by application of a voltage to the electro-mechanical energy conversion element;
A moving body that frictionally drives by pressure contact with the vibrating body, and that transmits a rotational force by the friction driving to an output shaft;
A vibration type driving device having
A cooling means that is driven by transmission of the rotational force of the movable body;
The vibration type driving apparatus is characterized in that the cooling means is configured to be driven at a faster rotational speed than the moving body. 前記冷却手段はファンであることを特徴とする請求項１に記載の振動型駆動装置。   2. The vibration type driving device according to claim 1, wherein the cooling means is a fan. 前記移動体の前記回転力を前記冷却手段に伝達する回転伝達部材を有することを特徴とする請求項１または請求項２に記載の振動型駆動装置。   The vibration type driving device according to claim 1, further comprising a rotation transmission member that transmits the rotational force of the movable body to the cooling unit. 前記冷却手段および前記回転伝達部材は、前記移動体の回転内周側に設けられていることを特徴とする請求項３に記載の振動型駆動装置。   The vibration type driving device according to claim 3, wherein the cooling unit and the rotation transmission member are provided on a rotation inner peripheral side of the movable body. 前記回転伝達部材は、歯車により構成されていることを特徴とする請求項３または請求項４に記載の振動型駆動装置。   The vibration-type drive device according to claim 3 or 4, wherein the rotation transmission member is constituted by a gear. 前記回転伝達部材は、
前記移動体と同じ回転数で駆動する第１の回転伝達部材と、
前記第１の回転伝達部材から回転を伝達され、前記冷却手段と一体的に駆動する第２の回転伝達部材と、によって構成されていることを特徴とする請求項３乃至５のいずれか１項に記載の振動型駆動装置。 The rotation transmission member is
A first rotation transmission member that is driven at the same rotational speed as the moving body;
6. The structure according to claim 3, further comprising: a second rotation transmission member that is transmitted with rotation from the first rotation transmission member and is driven integrally with the cooling unit. The vibration type driving device described in 1. 前記回転伝達部材は、
前記移動体と同じ回転数で駆動する第１の回転伝達部材と、
前記第１の回転伝達部材から回転を伝達され駆動する第２の回転伝達部材と、
前記第２の回転伝達部材から回転を伝達され、前記冷却手段と一体的に駆動する第３の回転伝達部材と、によって構成されていることを特徴とする請求項３乃至５のいずれか１項に記載の振動型駆動装置。 The rotation transmission member is
A first rotation transmission member that is driven at the same rotational speed as the moving body;
A second rotation transmission member that is driven by rotation transmitted from the first rotation transmission member;
The third rotation transmission member, which is transmitted with rotation from the second rotation transmission member and is driven integrally with the cooling means, is configured by any one of claims 3 to 5. The vibration type driving device described in 1. 前記第１の回転伝達部材は、前記移動体に設けられていることを特徴とする請求項６または請求項７に記載の振動型駆動装置。   The vibration type driving device according to claim 6, wherein the first rotation transmission member is provided on the movable body. 前記第１の回転伝達部材は、前記移動体とは別部材で形成され、該移動体に結合されていることを特徴とする請求項６乃至８のいずれか１項に記載の振動型駆動装置。   9. The vibration type driving device according to claim 6, wherein the first rotation transmission member is formed as a separate member from the moving body and is coupled to the moving body. . 前記第２の回転伝達部材は、少なくとも２つ以上設けられていることを特徴とする請求項７乃至９のいずれか１項に記載の振動型駆動装置。   The vibration type driving device according to claim 7, wherein at least two of the second rotation transmission members are provided. 前記第２の回転伝達部材は、前記移動体の回転方向に均等に設けられていることを特徴とする請求項１０に記載の振動型駆動装置。   The vibration-type drive device according to claim 10, wherein the second rotation transmission member is evenly provided in a rotation direction of the movable body. 前記第１の回転伝達部材を構成する歯車と前記第２の回転伝達部材を構成する歯車の比が、前記冷却手段を前記移動体よりも速い回転数で駆動することが可能な増速比に設定されていることを特徴とする請求項６に記載の振動型駆動装置。   The ratio of the gears constituting the first rotation transmission member and the gears constituting the second rotation transmission member is a speed increasing ratio capable of driving the cooling means at a faster rotational speed than the moving body. The vibration type driving device according to claim 6, wherein the vibration type driving device is set. 前記第１の回転伝達部材を構成する歯車と前記第３の回転伝達部材を構成する歯車の比が、前記冷却手段を前記移動体よりも速い回転数で駆動することが可能な増速比に設定されていることを特徴とする請求項７に記載の振動型駆動装置。   The ratio of the gears constituting the first rotation transmission member and the gears constituting the third rotation transmission member is a speed increasing ratio that can drive the cooling means at a faster rotational speed than the moving body. The vibration type driving device according to claim 7, wherein the vibration type driving device is set. 前記振動体は、前記移動体との接触側に複数の突起部が設けられており、該複数の突起部間の間隙の数と前記ファンを構成する羽根の数とが、互いに整数倍とならないように構成されていることを特徴とする請求項２乃至１３のいずれか１項に記載の振動型駆動装置。   The vibrating body is provided with a plurality of protrusions on the contact side with the moving body, and the number of gaps between the plurality of protrusions and the number of blades constituting the fan are not integral multiples of each other. 14. The vibration type driving device according to claim 2, wherein the vibration type driving device is configured as described above. 前記複数の突起部間の間隙の数と前記ファンを構成する羽根の数とが、互いに素であることを特徴とする請求項１４に記載の振動型駆動装置。   15. The vibration type driving device according to claim 14, wherein the number of gaps between the plurality of protrusions and the number of blades constituting the fan are relatively prime. 前記冷却手段は遠心ファンであることを特徴とする請求項１乃至１５のいずれか１項に記載の振動型駆動装置。   The vibration type driving apparatus according to claim 1, wherein the cooling unit is a centrifugal fan. 前記冷却手段が、前記出力軸に複数段重ねて設けられていることを特徴とする請求項１乃至１６のいずれか１項に記載の振動型駆動装置。   The vibration type driving device according to claim 1, wherein the cooling unit is provided in a plurality of stages on the output shaft. 前記移動体の上面に、制振ゴムと真鍮で形成された錘部材から構成されたばね受け部材を有することを特徴とする請求項１乃至１７のいずれか１項に記載の振動型駆動装置。   18. The vibration type driving device according to claim 1, further comprising a spring receiving member formed of a weight member made of damping rubber and brass on an upper surface of the moving body. レンズと、
前記レンズを駆動する請求項１から１８のいずれか１項の振動型駆動装置と、
を備えた撮像装置。 A lens,
The vibration type driving device according to any one of claims 1 to 18, which drives the lens;
An imaging apparatus comprising:
JP2013041147A 2013-03-01 2013-03-01 Vibration type driving device and imaging device Active JP6164874B2 (en)

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JP2014171298A5 true JP2014171298A5 (en) 2016-04-14
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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03253270A (en) * 1990-03-01 1991-11-12 Canon Inc Oscillatory wave motor
JP3825890B2 (en) * 1997-07-28 2006-09-27 キヤノン株式会社 Vibration actuator
JP2004064991A (en) * 2002-06-03 2004-02-26 Seiko Epson Corp Fan, electronic component provided with the same, and electronic equipment
US9143059B2 (en) * 2010-07-26 2015-09-22 Canon Kabushiki Kaisha Vibration wave motor

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