CN2886610Y - Focusing mechanism for cam of mobile phone - Google Patents
Focusing mechanism for cam of mobile phone Download PDFInfo
- Publication number
- CN2886610Y CN2886610Y CN200620025671.4U CN200620025671U CN2886610Y CN 2886610 Y CN2886610 Y CN 2886610Y CN 200620025671 U CN200620025671 U CN 200620025671U CN 2886610 Y CN2886610 Y CN 2886610Y
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- China
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- motor
- ultrasonic motor
- mobile phone
- inner core
- guide rail
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- Expired - Fee Related
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model relates to a mobile phone camera device, in particular to a focusing structure in a camera of a mobile phone, which utilizes an inertial ultrasonic motor to achieve the automatic focusing. The camera device comprises an inner and an outer barrels provided with a battery of lens and a driving device, which is characterized in that the driving device is an inertial ultrasonic motor composed of a motor base, a rod piezoelectric ceramics and a motor track; the inertial ultrasonic motor is disposed on the bottom of one side in the inner barrel and is connected with the inner barrel via a matching block, a pretightening spring leaf, a convex pole is provided on the outer wall of other side of the inner barrel, a guiding groove engaged with the convex pole is provided on the inner wall of the corresponding outer barrel, the inertial ultrasonic motor can also be disposed on a diagonal bottom of the outer barrel, a track and the engaged track hole are provided on the corresponding another diagonal bottom. The mobile phone camera in the utility model has the advantages of compact structure, high precision and long service life.
Description
Technical field
The utility model relates to a kind of cell-phone camera device, relates in particular to a kind of inertia ultrasonic motor that adopts and realizes the Focusing mechanism of the mobile phone cam of focusing automatically.
Technical background
What mobile phone cam adopted mostly in the prior art is the common optical lens that focuses, owing to can not focus automatically, draws a portrait second-rate.The camera that some is advanced, though had Autofocus Technology, what generally adopt is electromagnetic induction machines.The electromagnetic induction machines rotating speed is fast, moment is big, power is high, but owing to adopted solenoid and tooth shaft transmission, so the heating loss is big, is difficult for microminiaturization, is difficult to design the very little optical lens for cell phone of structural volume.In addition, type of drive also comprises electrostatic motor, electrostatic motor directly utilizes electrostatic force to drive rotor, do not need solenoid, Miniaturized, but moment is less, and friction and noise between stator and rotor are bigger, often need motor is immersed in the fluid and turn round, be unsuitable for being used in mobile phone cam.
Summary of the invention
Problem in view of above-mentioned prior art existence, the purpose of this utility model is: in order to realize the microminiaturization of mobile phone cam, guarantee performances such as its precision high noisy is little again, the spy provides a kind of inertia ultrasonic motor that adopts to realize the Focusing mechanism of the mobile phone cam of focusing automatically.
The technical scheme that the utility model is taked is: a kind of Focusing mechanism of mobile phone cam, comprise the inner core, urceolus and the drive unit that are provided with lens combination, it is characterized in that: described drive unit is to comprise by motor base, the bar-shaped piezoelectric ceramics that adopts polarization mode and the inertia ultrasonic motor that the motor guide rail constitutes; The inertia ultrasonic motor places the bottom of inner core one side, and is connected with inner core by match block, preloading spring sheet; Be provided with projection on the outer wall of the opposite side of inner core, the inwall of the urceolus that it is corresponding is provided with the guide groove that cooperates with projection; The inertia ultrasonic motor can also place the bottom, a diagonal angle of urceolus, the guide rail hole that is provided with guide rail and cooperates with it in another bottom, diagonal angle of its correspondence.
Description of drawings
Fig. 1 is the longitudinal section cut-open view of the utility model embodiment 1 and as Figure of abstract.
Fig. 2 is the cross section view of the utility model embodiment 1.
Fig. 3 is an inertia ultrasonic motor structural representation among Fig. 1.
Fig. 4 is the polarization mode synoptic diagram of piezoelectric ceramics among Fig. 1 or Fig. 3.(Fig. 4 direction of arrow is polarised direction)
Fig. 5 is longitudinal section, the diagonal angle cut-open view of the utility model embodiment 2.
Fig. 6 is the diagonal angle cross section view of the utility model embodiment 2.
Among the figure: 1. inner core, 2. urceolus, 3. motor base, 4. piezoelectric ceramics, 5. motor guide rail, 6. match block, 7. preloading spring sheet, 8. projection, 9. guide groove, 10. guide rail, 11. guide rail holes, 12. slide blocks (being the combination of inner core 1 and coupling fast 6), 13 electrodes.
Embodiment
Embodiment 1: with reference to Fig. 1,2, the inertia ultrasonic motor places the bottom of inner core 1 one sides, promotes inner core 1 by it and moves up and down.On the outer wall of inner core 1 opposite side, be provided with projection 8, guide groove 9 be set, prevent that inner core 1 from occurring tilting in the process of moving up and down in the position of urceolus 2 inwall correspondences.The inertia ultrasonic motor is connected with inner core 1 by match block 6, preloading spring sheet 7, preloading spring sheet 7 is connected with match block 6 viscosity, preloading spring sheet 7 is given pretightning force between motor and the inner core 1, increases the friction between them, to realize the relative motion between them.
With reference to Fig. 3,4, the inertia ultrasonic motor is made of motor base 3, bar-shaped piezoelectric ceramics 4 and motor guide rail 5, and two semicircles of bar-shaped piezoelectric ceramics 4 are coated with electrode 13 respectively and polarize, and this polarization mode helps miniaturization.Piezoelectric ceramics 4 elongations when giving its positive voltage, when giving its reverse voltage, piezoelectric ceramics 4 shortens.Motor guide rail 5 links to each other with piezoelectric ceramics 4, and bar-shaped piezoelectric ceramics 4 is applied voltage-sawtooth, makes motor guide rail 5 produce reciprocal variable speed vibration.When motor guide rail 5 travelled forward at a slow speed, slide block 12 pinned movement therewith because of friction, and when motor guide rail 5 returned at a high speed, slide block 12 inertial force overcome frictions and produce relative motion had been gone ahead a step.Motor guide rail 5 adopts high-abrasive material, has improved motor life.Inertia ultrasonic motor precision height, again self-locking performance is arranged, between inner core 1 and urceolus 2, do not need to install other stationary installation.
Embodiment 2: with reference to Fig. 5,6, the inertia ultrasonic motor places on the diagonal angle of urceolus 2, saves the space, has reduced the volume of camera.Be provided with a guide rail 10 on another diagonal angle of its correspondence, inner core 1 is provided with guide rail hole 11, cooperates with guide rail 10, prevents the irregular movement of inner core 1.
Adopt mobile phone cam of the present utility model, have the advantages such as compact conformation, precision height and life-span length.
Claims (1)
1. the Focusing mechanism of a mobile phone cam, comprise the inner core (1), urceolus (2) and the drive unit that are provided with lens combination, it is characterized in that: described drive unit is to comprise the inertia ultrasonic motor that is made of motor base (3), bar-shaped piezoelectric ceramics (4) and motor guide rail (5); The inertia ultrasonic motor places the bottom of inner core (1) one side, and is connected with inner core (1) by match block (6), preloading spring sheet (7); Be provided with projection (8) on the outer wall of the opposite side of inner core (1), the inwall of its corresponding urceolus (2) is provided with the guide groove (9) that cooperates with projection (8); The inertia ultrasonic motor can also place the bottom, a diagonal angle of urceolus (2), the guide rail hole (11) that is provided with guide rail (10) and cooperates with it in another bottom, diagonal angle of its correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620025671.4U CN2886610Y (en) | 2006-03-30 | 2006-03-30 | Focusing mechanism for cam of mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620025671.4U CN2886610Y (en) | 2006-03-30 | 2006-03-30 | Focusing mechanism for cam of mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886610Y true CN2886610Y (en) | 2007-04-04 |
Family
ID=37961699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200620025671.4U Expired - Fee Related CN2886610Y (en) | 2006-03-30 | 2006-03-30 | Focusing mechanism for cam of mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886610Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005964A (en) * | 2010-12-29 | 2011-04-06 | 南昌工程学院 | Magnetostriction type inertial impact micro linear motor |
| CN102006419A (en) * | 2010-09-17 | 2011-04-06 | 惠州Tcl移动通信有限公司 | Mobile terminal with automatic focusing driving circuit and driving circuit thereof |
| CN102118119A (en) * | 2011-04-08 | 2011-07-06 | 南昌工程学院 | Precision linear motor with giant magnetostrictive rare earth rod as drive source |
| JP7439707B2 (en) | 2020-09-11 | 2024-02-28 | Tdk株式会社 | optical drive device |
-
2006
- 2006-03-30 CN CN200620025671.4U patent/CN2886610Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006419A (en) * | 2010-09-17 | 2011-04-06 | 惠州Tcl移动通信有限公司 | Mobile terminal with automatic focusing driving circuit and driving circuit thereof |
| CN102005964A (en) * | 2010-12-29 | 2011-04-06 | 南昌工程学院 | Magnetostriction type inertial impact micro linear motor |
| CN102118119A (en) * | 2011-04-08 | 2011-07-06 | 南昌工程学院 | Precision linear motor with giant magnetostrictive rare earth rod as drive source |
| JP7439707B2 (en) | 2020-09-11 | 2024-02-28 | Tdk株式会社 | optical drive device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20110330 |