CN100498404C - Inner rotor motor structure - Google Patents
Inner rotor motor structure Download PDFInfo
- Publication number
- CN100498404C CN100498404C CNB2006100620796A CN200610062079A CN100498404C CN 100498404 C CN100498404 C CN 100498404C CN B2006100620796 A CNB2006100620796 A CN B2006100620796A CN 200610062079 A CN200610062079 A CN 200610062079A CN 100498404 C CN100498404 C CN 100498404C
- Authority
- CN
- China
- Prior art keywords
- lens group
- loam cake
- stator
- inner rotor
- motor structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Lens Barrels (AREA)
Abstract
An inner rotor motor structure includes a lens module, a motor for driving the lens module to expand and move and an upper cover arranged on the lens module. The motor and the lens module are respectively provided with a matched screw structure for driving the lend module to move; the center of the upper cover is provided with an open hole; the lens module includes an upper end and a lower end; the screw structure of the lens module is arranged on the lower end; the motor drives the upper end of the lens module to expand and move in the open hole on the upper cover; in the expansion, the screw structure on the lower end of the lens module is not exposed outside the upper cover.
Description
Technical field
The present invention relates to a kind of motor configuration, refer to the motor configuration that a kind of rotor is built-in especially.
Background technology
Along with the continuous development of science and technology and modern industry, motor has been widely used in the portable digital camera product, fields such as camera cell phone product.
Application on camera, industry has proposed the built-in camera motor structure of a kind of camera lens, this motor configuration comprises a stator that is hollow tube-shape and places the interior rotor of this stator, this rotor is hollow tube-shape equally, lens group is placed in this rotor, the surface of contact of lens group and rotor forms the helicitic texture that cooperatively interacts, motor energising rear drive rotor rotates, and the helicitic texture by rotor and lens group drives the rectilinear motion that is converted into lens group with the rotation of rotor, drive the lens group telescopic moving, realize the focus function of camera.So, in this motor configuration, surface of contact between the screw thread of lens group and the screw thread of rotor is exposed to the external world, thereby cause extraneous dust to enter the motor inner structure from this surface of contact easily, and fall on the image sensor that needs high cleanliness, and then influence imaging definition, therefore need be improved.
Summary of the invention
In view of this, be necessary to provide a kind of inner rotor motor structure with dust reduction capability.
A kind of inner rotor motor structure, comprise lens group, drive the motor of this lens group telescopic moving and be covered on loam cake on this lens group, be respectively equipped with on this motor and this lens group and match to drive the helicitic texture that lens group moves, be provided with perforate in the middle of this loam cake, this lens group comprises upper end and bottom, the helicitic texture of this lens group is located on the bottom, the telescopic moving in the perforate of loam cake of the upper end of this motor driven lens group, in this stretching motion, helicitic texture on the bottom of this lens group does not expose outside the loam cake, this motor comprises a stator, this stator is provided with the slit that some and described projection matches and fixes with loam cake and stator near convexing with several projections on the top of loam cake, covering on this.
A kind of inner rotor motor structure, comprise lens mount, be located at the stator in the lens mount, be located at the rotor in the stator, be located at the lens group in the rotor and described stator and rotor be fixed in loam cake in the lens mount, be respectively equipped with on this rotor and this lens group and match to drive the helicitic texture that lens group moves, this lens group comprises upper end and bottom, the external diameter of the upper end of this lens group is less than the external diameter of the bottom of this lens group, this upper end longitudinally is provided with groove, be provided with and the sizable perforate in described upper end in the middle of this loam cake, the edge projection that is placed on described perforate on being somebody's turn to do has the guidance part that is complementary with described groove, the helicitic texture of this lens group is located on this bottom, under the effect of rotor and above-mentioned guidance part, move as linear telescopic along the perforate of loam cake the upper end of this lens group, and stretch inside and outside this loam cake, and the bottom of this lens group remains in this lens mount and the formed enclosure space of loam cake.
Compared with prior art, in the above-mentioned inner rotor motor structure, because this lens group is provided with loam cake, and the helicitic texture on this lens group does not expose outside the loam cake, can prevent that extraneous dust from entering in the motor inner structure, and fall on the image sensor in the motor configuration, thereby can keep the cleanliness of image sensor, improve the quality of imaging.
Description of drawings
Fig. 1 is the three-dimensional exploded view of inner rotor motor structure preferred embodiment of the present invention.
Fig. 2 is the three-dimensional assembly diagram of motor configuration shown in Figure 1.
Fig. 3 is the cut-open view of motor configuration shown in Figure 2.
Fig. 4 is the working state schematic representation of motor configuration shown in Figure 2.
Embodiment
With reference to the accompanying drawings, be described further in conjunction with the embodiments.
Fig. 1 is to the structural representation that Figure 3 shows that inner rotor motor structure one preferred embodiment of the present invention, and this inner rotor motor structure comprises that a lens mount 10 (as shown in Figure 2), places the lens group 50 that motor 30 (as shown in Figure 3) in this lens mount 10, driven by this motor 30 and is covered on loam cake 70 on this lens group 50.
This lens mount 10 comprise shell block on one 12 and with should go up the lower shell seat 14 that shell block 12 cooperates, shell block 12 and lower shell seat 14 accommodation spaces of ccontaining these motors 30 of formation and lens group 50 jointly this on.
The structure of this upper and lower shell block 12,14 is basic identical, this upper and lower shell block 12,14 includes the sidewall 121,141 of a hollow cylindrical and is formed at a breach 126,146 of these sidewall 121,141 1 ends, in the time of should going up shell block 12 with lower shell seat 14 assemblings, splice mutually at the two ends at breach 126,146 places, and two breach 126,146 connect and common form 18 (as shown in Figure 2) of perforation so that being connected of motor 30 and power supply (scheming not show).For ease of combining of last shell block 12 and lower shell seat 14, shell block 12 can be provided with the buckle structure (figure does not show) that cooperatively interacts with lower shell seat 14 on this.
This motor 30 places in these lens mount 10 formed accommodation spaces, and it is a step motor, the rotor 34 that this motor 30 comprises a stator 32 and is contained in this stator 32 and can rotates relative to this stator 32.
This stator 32 is tubular, and this stator 32 comprises that a stator coil seat 321 reaches the coil 322 that axially is wound on this stator coil seat 321.This coil 322 is used for being electrically connected with power supply, this coil holder 321 in the form of a ring, its inner formation can ccontaining rotor 34 cylindrical space, the inner ring surface of this coil holder 321 is provided with some utmost point teeth 323, the top of this coil holder 321 promptly upwards is convexly equipped with several projections 324 near the end of last shell block 12, these projections 324 can be formed by punching press, its circumferencial direction along cylindrical space is provided with at interval, the bottom of this coil holder 321 promptly inwardly is convexly equipped with the flange 326 that forms a ring-type near the end of lower shell seat 14 in its inner rim, and this flange 326 is concentric with this cylindrical space.
The internal diameter of the external diameter of this stator 32 and lens mount 10 is roughly suitable, and the outer ring surface of stator 32 contacts with the internal face of lens mount 10, thereby stator 32 is defined in the lens mount 10, and power supply is electrically connected with coil 323 via perforation 18.
This rotor 34 is placed in these stator 32 formed cylindrical spaces, the collar 342 that it comprises the magnet ring 341 of an annulus column and is located at these magnet ring 341 tops, the bottom of this magnet ring 341 places on the flange 326 of coil holder 321 of this stator 32, this collar 342 also is the hollow circular ring shape, its bottom extends to form the clamping part 343 of a ring-type downwards, the internal diameter of this clamping part 343 equates with the internal diameter of this collar 342, and the internal diameter of the external diameter of this clamping part 343 and this magnet ring 341 about equally, this clamping part 343 is placed in this magnet ring 341, so that this collar 342 forms as one with this magnet ring 341, these collar 342 inwalls also are provided with the internal thread 344 in order to drive this lens group 50.
This lens group 50 places in this rotor 34, this lens group 50 comprises upper end 51 and bottom 54, this upper end 51 all is cylindric with this bottom 54, this bottom 54 is provided with the external thread 544 that the internal thread 344 with the collar 342 inwalls is screwed in its outer wall, the external diameter of this upper end 51 is less than the external diameter of this bottom 54, its outer wall is provided with the some grooves 541 that cave inward, and these grooves 541 uniformly-spaced are provided with along the circumferencial direction of this upper end 51.
This loam cake 70 is covered on this lens group 50, and it is provided with a perforate 71 in the middle of this loam cake 70 in the form of a ring.The external diameter of the external diameter of this loam cake 70 and this lens mount 10 about equally, the diameter of this perforate 71 is slightly larger than the external diameter of upper end 51 less than the external diameter of the bottom 54 of this lens group 50.This loam cake 70 is provided with some slits 724, and these slits 724 are provided with at interval along the circumferencial direction of ring-type loam cake 70, and it matches with projection 324 on this coil holder 321, moves or comes off to prevent this loam cake 70.The radially inside some guidance parts 741 of projection of the inner edge of this loam cake 70, groove 541 on upper end 51 outer walls of these guidance parts 741 and this lens group 50 matches, thereby restriction lens group 50 rotation along the circumferential direction, the same with the distribution of groove 541 on 51 outer walls of the upper end of lens group 50, guidance part 741 is provided with along the inner edge equi-spaced apart of ring-type loam cake 70, can make lens group 50 accurate contrapositions, avoid rocking.This guidance part 741 extend downwards suitably vertically but its length less than the length (as shown in Figure 3) of this groove 541.
When assembling this inner rotor motor structure, this lens group 50 places in this rotor 34, internal thread 344 on the external thread 544 on bottom 54 outer walls of this lens group 50 and the collar 342 inwalls of this rotor 34 is screwed, this rotor 34 is placed in these stator 32 formed cylindrical spaces, wherein the bottom of the magnet ring 341 of this rotor 34 places on the flange 326 of coil holder 321 of this stator 32,32 of this stators place this lower shell seat 12 to be connected with last shell block 14 in the common accommodation space that forms, this loam cake 70 is covered on this lens group 50, and the slit 724 on this loam cake 70 is matched with projection 324 on this coil holder 321, the guidance part 741 on these loam cake 70 inner edges matches with groove 541 on upper end 51 outer walls of this lens group 50.
As shown in Figure 4, during this inner rotor motor structure work, after coil 322 energized of stator 32, by the action of a magnetic field of coil 322 with the magnet ring 341 of rotor 34, drive rotor 34 around its axis rotation, the helicitic texture that matches with lens group 50 by rotor 34 then, under the restriction and guide function of the guidance part 741 of this loam cake 70, the rotation of rotor 34 is converted into the rectilinear motion of lens group 50, stretched inside and outside this loam cake 70 in the upper end 51 of lens group 50, realize the function of focusing automatically.In the above-mentioned inner rotor motor structure, because these loam cake 70 inwalls are provided with guidance part 741, can play restriction lens group 50 rotates together owing to existing friction force to follow rotor 34 between the screw thread, guide the effect of these lens group 50 moving linearlies, on the other hand since the internal diameter of this loam cake 70 less than the external diameter of the bottom 54 of lens group 50, thereby the external thread 544 on these bottom 54 outer walls is defined in the lens mount 10, in fact only the bee-line of this guidance part 741 of centre distance that needs these loam cake 70 inner edges is less than the radius of a circle of the bottom 54 of this lens group 50, can make unlikely the exposing outside the loam cake 70 of surface of contact of the internal thread 344 on external thread 544 and rotor 34 inwalls on lens group 50 outer walls, thereby can prevent extraneous dust thus surface of contact enter in the motor inner structure, and fall on the image sensor in the motor configuration (figure does not show), the cleanliness that keep image sensor improve the quality of imaging.
Claims (14)
1. inner rotor motor structure, comprise lens group and drive the motor of this lens group telescopic moving, be respectively equipped with on this motor and this lens group and match to drive the helicitic texture that lens group moves, it is characterized in that: this inner rotor motor structure also comprises the loam cake that is covered on this lens group, be provided with perforate in the middle of this loam cake, this lens group comprises upper end and bottom, the helicitic texture of this lens group is located on the bottom, the telescopic moving in the perforate of loam cake of the upper end of this motor driven lens group, in this stretching motion, helicitic texture on the bottom of this lens group does not expose outside the loam cake, this motor comprises a stator, this stator is provided with the slit that some and described projection matches and fixes with loam cake and stator near convexing with several projections on the top of loam cake, covering on this.
2. inner rotor motor structure as claimed in claim 1 is characterized in that: the external diameter of the upper end of this lens group is less than the external diameter of the bottom of this lens group.
3. inner rotor motor structure as claimed in claim 1 or 2 is characterized in that: the outer wall of the upper end of this lens group is provided with along its axial some grooves, the guidance part that the some and described groove of the inside projection of the inner edge of this loam cake matches.
4. inner rotor motor structure as claimed in claim 3 is characterized in that: described guidance part and groove are provided with along the outer wall equi-spaced apart of the upper end of this loam cake inner edge and this lens group respectively.
5. inner rotor motor structure as claimed in claim 3 is characterized in that: described guidance part extends downwards simultaneously vertically, and its length is less than the length of described groove.
6. inner rotor motor structure as claimed in claim 1 is characterized in that: the bottom of this stator radially inwardly convexes with flange, and this motor also comprises the rotor that places in this stator, and this rotor is positioned on this flange.
7. inner rotor motor structure as claimed in claim 6, it is characterized in that: this rotor comprises the magnet ring of annulus column and is located at the wherein collar of an end of this magnet ring, this collar extends to form downwards and magnet ring buckle and clamping part in the form of a ring mutually, this clamping part is placed in this magnet ring, and the helicitic texture of this motor is located on the inwall of this collar.
8. inner rotor motor structure as claimed in claim 1 is characterized in that: also comprise the lens mount of ccontaining this motor and lens group, be covered on this on this lens mount that the external diameter of this loam cake equates with the external diameter of this lens mount.
9. inner rotor motor structure as claimed in claim 8 is characterized in that: offer the perforation that power supply source connects on the sidewall of this lens mount.
10. inner rotor motor structure, comprise lens mount, be located at the stator in the lens mount, be located at the rotor in the stator and be located at the interior lens group of rotor, be respectively equipped with on this rotor and this lens group and match to drive the helicitic texture that lens group moves, it is characterized in that: this inner rotor motor structure also comprises described stator and rotor is fixed in loam cake in the lens mount, this lens group comprises upper end and bottom, the external diameter of the upper end of this lens group is less than the external diameter of the bottom of this lens group, this upper end longitudinally is provided with groove, be provided with and the sizable perforate in described upper end in the middle of this loam cake, the edge projection that is placed on described perforate on being somebody's turn to do has the guidance part that is complementary with described groove, the helicitic texture of this lens group is located on this bottom, under the effect of rotor and above-mentioned guidance part, move as linear telescopic along the perforate of loam cake the upper end of this lens group, and stretch inside and outside this loam cake, and the bottom of this lens group remains in this lens mount and the formed enclosure space of loam cake.
11. inner rotor motor structure as claimed in claim 10 is characterized in that: offer the perforation that power supply source connects on the sidewall of this lens mount.
12. inner rotor motor structure as claimed in claim 10, it is characterized in that: this motor comprises a stator, this stator is provided with the slit that some and described projection matches and fixes with loam cake and stator near convexing with several projections on the top of loam cake, covering on this.
13. inner rotor motor structure as claimed in claim 10 is characterized in that: the bottom of this stator radially inwardly convexes with flange, and this motor also comprises the rotor that places in this stator, and this rotor is positioned on this flange.
14. inner rotor motor structure as claimed in claim 13, it is characterized in that: this rotor comprises the magnet ring of annulus column and is located at the wherein collar of an end of this magnet ring, this collar extends to form downwards and magnet ring buckle and clamping part in the form of a ring mutually, this clamping part is placed in this magnet ring, and the helicitic texture of this motor is located on the inwall of this collar.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100620796A CN100498404C (en) | 2006-08-11 | 2006-08-11 | Inner rotor motor structure |
| JP2007206637A JP5117785B2 (en) | 2006-08-11 | 2007-08-08 | Structure of rotor built-in motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100620796A CN100498404C (en) | 2006-08-11 | 2006-08-11 | Inner rotor motor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101122665A CN101122665A (en) | 2008-02-13 |
| CN100498404C true CN100498404C (en) | 2009-06-10 |
Family
ID=39085073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100620796A Expired - Fee Related CN100498404C (en) | 2006-08-11 | 2006-08-11 | Inner rotor motor structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5117785B2 (en) |
| CN (1) | CN100498404C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581819B (en) * | 2008-05-15 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| JP2011017946A (en) | 2009-07-10 | 2011-01-27 | Sony Corp | Imaging apparatus |
| CN105897972B (en) * | 2016-06-30 | 2017-05-10 | 维沃移动通信有限公司 | Camera module and terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385354Y (en) * | 1999-08-05 | 2000-06-28 | 华晶科技股份有限公司 | Focusing trimming device for digital camera |
| CN1335524A (en) * | 2000-07-29 | 2002-02-13 | 三星Techwin株式会社 | Lens barrel assembly for zoom lens camera |
| CN2677958Y (en) * | 2004-01-18 | 2005-02-09 | 马志达科技股份有限公司 | Built-in drive source structure of camera lens set |
| CN2766268Y (en) * | 2005-03-02 | 2006-03-22 | 普立尔科技股份有限公司 | Camera module and its driving device |
| CN2784956Y (en) * | 2004-12-29 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Digital camera zooming lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006091260A (en) * | 2004-09-22 | 2006-04-06 | Fuji Photo Film Co Ltd | Lens driving apparatus and digital camera |
-
2006
- 2006-08-11 CN CNB2006100620796A patent/CN100498404C/en not_active Expired - Fee Related
-
2007
- 2007-08-08 JP JP2007206637A patent/JP5117785B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385354Y (en) * | 1999-08-05 | 2000-06-28 | 华晶科技股份有限公司 | Focusing trimming device for digital camera |
| CN1335524A (en) * | 2000-07-29 | 2002-02-13 | 三星Techwin株式会社 | Lens barrel assembly for zoom lens camera |
| CN2677958Y (en) * | 2004-01-18 | 2005-02-09 | 马志达科技股份有限公司 | Built-in drive source structure of camera lens set |
| CN2784956Y (en) * | 2004-12-29 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Digital camera zooming lens |
| CN2766268Y (en) * | 2005-03-02 | 2006-03-22 | 普立尔科技股份有限公司 | Camera module and its driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008048595A (en) | 2008-02-28 |
| JP5117785B2 (en) | 2013-01-16 |
| CN101122665A (en) | 2008-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7039309B2 (en) | Drive source of a camera lens | |
| CN1050463C (en) | Lens barrel for a video camera, and linear feeding system therefor | |
| US7443618B2 (en) | Motor structure with built-in lens | |
| US20060192443A1 (en) | Claw-pole permanent magnet stepping motor | |
| CN1538234A (en) | Lens drive device and portable apparatus with camera | |
| JP2007110884A (en) | Stepping motor and electronic apparatus | |
| JP2008129597A (en) | Focusing structure | |
| CN100498404C (en) | Inner rotor motor structure | |
| CN101242117B (en) | Motor driving structure | |
| US7535662B2 (en) | Auto-focusing camera | |
| JP2008152240A (en) | Built-in focusing structure | |
| JP2005062432A (en) | Lens device | |
| JP3116084U (en) | Optical axis stepping motor structure | |
| CN101393378B (en) | Auto focusing structure for camera | |
| JP4537866B2 (en) | Lens drive device | |
| CN114114600B (en) | Novel automatic focusing MTV lens module | |
| JP2010226922A (en) | Air core stepping motor and lens device | |
| JP2016099496A (en) | Lens unit and optical device | |
| CN101315510A (en) | Automatic focusing structure with radially arranged piezoelectric motor | |
| JP2006187104A (en) | Magnetic driving device and lens driving device | |
| JP2006047364A (en) | Lens-barrel incorporated with shutter device, and assembly method therefor | |
| US7657170B2 (en) | Motor structure with built-in lens | |
| CN211651527U (en) | Laser ranging module | |
| JPH0331930Y2 (en) | ||
| JP2005148586A (en) | Lens driver, its manufacturing method and portable equipment with camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |