CN104113231A - Miniature ultrasonic focusing motor - Google Patents
Miniature ultrasonic focusing motor Download PDFInfo
- Publication number
- CN104113231A CN104113231A CN201410285269.9A CN201410285269A CN104113231A CN 104113231 A CN104113231 A CN 104113231A CN 201410285269 A CN201410285269 A CN 201410285269A CN 104113231 A CN104113231 A CN 104113231A
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- Prior art keywords
- oscillator
- stator
- groove
- miniature ultrasonic
- focusing motor
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Abstract
The invention relates to a miniature ultrasonic focusing motor comprising a stator, a first oscillator, and a second oscillator. A groove is formed in one end surface of the stator and the first oscillator is arranged in the groove of the stator; the second oscillator approaches the other end surface of the stator; and a piezoelectric element is adjacent to the other end surface of the second oscillator. The end surface, provided with the groove, of the stator is successively adjacent to an output gear wheel and a flange jaw. The stator, the first oscillator and the second oscillator are arranged at the same linear axis. According to the technical scheme, the whole length of the motor is reduced and the vibration frequency of the stator does not increase.
Description
Technical field
The present invention relates to autofocus motor field, be specifically related to a kind of miniature ultrasonic focusing motor.
Background technology
Ultrasonic motor and traditional motor have very large difference, no matter traditional motor has how many kinds of, its principle generally changes electromagnetic force into rotatory force exactly, the rotatory force of ultrasonic motor is the energy that results from ultrasonic vibration, in order to cater to more configuring automatic focusing drive unit in narrow space, be necessary to shorten motor length, if still shorten design length simply, do not change element arrangements position, the resonance frequency of stator will be too high so, and this can reduce vibration wave amplitude on the contrary.
Summary of the invention
The object of the invention is to overcome the problem that prior art exists, a kind of miniature ultrasonic focusing motor is provided.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of miniature ultrasonic focusing motor, it comprises stator, the first oscillator and the second oscillator, in described stator one end face, be provided with groove, described the first oscillator is arranged in the groove of stator, described the second oscillator abuts the other end of stator, described the second oscillator other end is in abutting connection with piezoelectric element, and described stator is provided with the end face of groove successively in abutting connection with output gear and flange jaw, and described stator, the first oscillator and the second oscillator are arranged on same linear axis.
Further, in the groove of described stator, be provided with Compress Spring, described Compress Spring one end is against bottom land, and the other end pushes against output gear.
The invention has the beneficial effects as follows:
Adopt technical solution of the present invention, the entire length of motor is shortened, and the vibration frequency of stator can not raise yet.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Number in the figure explanation: 1, the first oscillator, the 2, second oscillator, 3, stator, 4, piezoelectric element, 5, output gear, 6, flange jaw, 7, linear axis, 8, Compress Spring, 9, locking wheel, 10, latch segment.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Shown in Fig. 1, a kind of miniature ultrasonic focusing motor, mainly comprise stator 3, the first oscillator 1 and the second oscillator 2, in the present embodiment, described stator is provided with groove in 3 left sides, its groove forms vibration chamber, described the first oscillator 1 is arranged in the groove of stator 3, and be arranged on linear axis 7, the shaft shoulder of itself and linear axis, between axial plane, also form a small oscillation chamber, the two sides of the first oscillator 1 is all vibration chamber, described the second oscillator 2 abuts the right side of stator 3, described the second oscillator 2 other ends are in abutting connection with piezoelectric element 4, lock with locking wheel 9 on piezoelectric element 4 right sides, described stator 3 is provided with the end face (left side) of groove successively in abutting connection with output gear 5 and flange jaw 6, high order end is locked by latch segment 10, described stator 3, the first oscillator 1 and the second oscillator 2 are arranged on same linear axis 7, in the groove of described stator 3, be provided with Compress Spring 8, described Compress Spring 8 one end are against bottom land, the other end pushes against output gear 5.
Principle of the present invention:
Ultrasonic vibration is the fundamental driving force of motor rotation, in the present invention, in drives piezoelectric element 4, possess different directions electrode layer and send ultrasonic wave, self expanding and shrinking meeting (amplifying by the second oscillator 2) of the different directions of piezoelectric element 4 causes that stator 3 tips swing slightly or swing, final result is whenever voltage direction changes 90 degree (a part of process of power supply), the vibration of the piezoelectric layer both sides of piezoelectric element 4 will in conjunction with and produce the vibration wave of a very little rotation (each produce a vibration wave in cycle, amplitude 0.002mm), this ripple makes stator 3 tail ends make circus movement among a small circle, the energy that stator 3 rotates passes to output gear 5 by the elastic force (amplifying by the first oscillator 1) of Compress Spring 8, drive its running.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a miniature ultrasonic focusing motor, it is characterized in that, comprise stator (3), the first oscillator (1) and the second oscillator (2), in described stator (3) one end faces, be provided with groove, described the first oscillator (1) is arranged in the groove of stator (3), described the second oscillator (2) abuts the other end of stator (3), described the second oscillator (2) other end is in abutting connection with piezoelectric element (4), described stator (3) is provided with the end face of groove successively in abutting connection with output gear (5) and flange jaw (6), described stator (3), the first oscillator (1) and the second oscillator (2) are arranged on same linear axis (7).
2. miniature ultrasonic focusing motor according to claim 1, is characterized in that, is provided with Compress Spring (8) in the groove of described stator (3), and described Compress Spring (8) one end is against bottom land, and the other end pushes against output gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285269.9A CN104113231A (en) | 2014-06-24 | 2014-06-24 | Miniature ultrasonic focusing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285269.9A CN104113231A (en) | 2014-06-24 | 2014-06-24 | Miniature ultrasonic focusing motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104113231A true CN104113231A (en) | 2014-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410285269.9A Pending CN104113231A (en) | 2014-06-24 | 2014-06-24 | Miniature ultrasonic focusing motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104113231A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367047A (en) * | 2001-01-22 | 2002-09-04 | 佳能株式会社 | Vibrating element and vibrating wave driving device |
| CN1367046A (en) * | 2001-01-22 | 2002-09-04 | 佳能株式会社 | Vibrating element and vibrating wave driving device |
| CN1429666A (en) * | 2001-12-27 | 2003-07-16 | 佳能株式会社 | Vibrator and vibration wave driving device with the vibrator |
| US20030164659A1 (en) * | 2001-11-09 | 2003-09-04 | Akihiro Iino | Ultrasonic motor and electronic apparatus with ultrasonic motor |
| CN201075843Y (en) * | 2007-08-31 | 2008-06-18 | 东南大学 | Short column type ultrasound wave electric machine |
| CN101931340A (en) * | 2009-06-23 | 2010-12-29 | 佳能株式会社 | Vibration wave driven apparatus and image pickup apparatus including vibration wave driven apparatus |
| CN103029440A (en) * | 2012-12-06 | 2013-04-10 | 中国科学技术大学 | Piezoelectric ultrasonic drive liquid ejection device |
| CN204031008U (en) * | 2014-06-24 | 2014-12-17 | 苏州世优佳电子科技有限公司 | A kind of miniature ultrasonic focusing motor |
-
2014
- 2014-06-24 CN CN201410285269.9A patent/CN104113231A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367047A (en) * | 2001-01-22 | 2002-09-04 | 佳能株式会社 | Vibrating element and vibrating wave driving device |
| CN1367046A (en) * | 2001-01-22 | 2002-09-04 | 佳能株式会社 | Vibrating element and vibrating wave driving device |
| US20030164659A1 (en) * | 2001-11-09 | 2003-09-04 | Akihiro Iino | Ultrasonic motor and electronic apparatus with ultrasonic motor |
| CN1429666A (en) * | 2001-12-27 | 2003-07-16 | 佳能株式会社 | Vibrator and vibration wave driving device with the vibrator |
| CN201075843Y (en) * | 2007-08-31 | 2008-06-18 | 东南大学 | Short column type ultrasound wave electric machine |
| CN101931340A (en) * | 2009-06-23 | 2010-12-29 | 佳能株式会社 | Vibration wave driven apparatus and image pickup apparatus including vibration wave driven apparatus |
| CN103029440A (en) * | 2012-12-06 | 2013-04-10 | 中国科学技术大学 | Piezoelectric ultrasonic drive liquid ejection device |
| CN204031008U (en) * | 2014-06-24 | 2014-12-17 | 苏州世优佳电子科技有限公司 | A kind of miniature ultrasonic focusing motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |