CN202330839U - Lens driving device, photographing device and electronic device - Google Patents
Lens driving device, photographing device and electronic device Download PDFInfo
- Publication number
- CN202330839U CN202330839U CN2011204620768U CN201120462076U CN202330839U CN 202330839 U CN202330839 U CN 202330839U CN 2011204620768 U CN2011204620768 U CN 2011204620768U CN 201120462076 U CN201120462076 U CN 201120462076U CN 202330839 U CN202330839 U CN 202330839U
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- Prior art keywords
- magnetite
- lens
- lens driver
- coil
- supports body
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Abstract
The utility model aims at providing a lens driving device, a photographing device and an electronic device. A magnet, namely a magnet assembly, can be manufactured easily without using a special mold and is formed by a plurality of magnet portions only provided with straight sides. Seen from the optical axis direction, the periphery of the magnet assembly is 2M polygonal, M is a natural number no smaller than 2, and the magnet assembly is allocated along the inner circumference of a casing without intervals. The inner circumference of the magnet assembly is 2N polygonal, N is a natural number no smaller than 2, and M and N are identical to each other or different from each other.
Description
Technical field
The utility model is about lens driver, camera and electronic equipment.
Background technology
Disclose a kind of lens driver in the patent documentation (TOHKEMY 2004-280031), it has: about tubular yoke; The base of yoke is installed; The carrier of support of lens; Coil; And magnetite.In the said lens drive unit, the inboard perisporium of yoke and outer perimeter wall are mutually with spaced, and the edge is circumferentially disposing the magnetite of annular between inboard perisporium and the outer perimeter wall.
But when making the magnetite of annular, it is special to need to use, or complicated mould, makes comparatively difficulty, and manufacturing cost is higher.
The utility model content
Therefore, the purpose of the utility model provides lens driver, camera and electronic equipment, and magnetite wherein need not to use special mould, makes easily.
For realizing the lens driver of said purpose, comprising:
The lens supports body, its support of lens;
Magnetically-actuated portion, it has magnetite and coil, feeds electric current to said coil, produces electromagnetic force between magnetite and the coil, through this electromagnetic force said lens supports body is moved to the optical axis direction of lens; And
Housing department, this housing department are covered with said lens supports body and said magnetically-actuated portion,
Be characterized in,
Said magnetite is said magnetite set; Be only to have the magnetite portion of straight line to constitute by a plurality of, the peripheral shape of gathering from the said magnetite of optical axis direction is the 2M dihedral, and M is not less than 2 natural number; And very close to each other being configured of interior week of the said shell in edge; The set of said magnetite be shaped as the 2N dihedral interior week, N is not less than 2 natural number, M and N are identical or different.
The set of such magnetite, all shapes and peripheral shape all are polygons in it, and, constituting by a plurality of magnetite portion, said a plurality of magnetite portion is made up of the limit of having only straight line respectively, so need not to use mould special or complicacy, makes more or less freely.Just because of this, also can reduce manufacturing cost.
And the periphery of magnetite set is configured to very close to each other, compares with gapped occasion, can produce stronger magnetic density.Just because of this, can improve the driving efficient of lens driver.
Described lens driver, its further characteristics be, from optical axis direction, each magnetite portion of said a plurality of magnetite portion is quadrangle or triangle.
Each magnetite portion is quadrangle or triangle, so need not to use special or complicated mould, makes more or less freely.
Described lens driver, its further characteristics be, is positioned at the thickness of magnetite portion in bight of the outer circumferential side of magnetite set, and promptly the meat along the bight of the radial direction at magnetite set center is thick, and is bigger than the thickness that is positioned at the magnetite portion beyond the outer circumferential side bight.Therefore, can produce stronger magnetic density, move to drive lens efficiently in the bight.
Described lens driver, its further characteristics be, said coil configuration is in interior all sides of said magnetite set, and, form along the inner peripheral surface shape of said magnetite set.Therefore coil shape is similar with magnetite set shape, can produce stronger magnetic density.Just because of this, can improve the driving efficient of lens driver.
Described lens driver, its further characteristics be, further has restrictions, and this restrictions limits moving of said lens supports body through contending with said electromagnetic force.After the outage, restrictions can return to reference position with lens automatically.
Described lens driver, its further characteristics be, M is 2,3, in 4 one, and N is 2,3, in 4 one.Therefore the number of components of magnetite set is few.
For realizing the camera of said purpose, be characterized in, comprise arbitrary said lens driver.
For realizing a kind of electronic equipment of said purpose, be characterized in, comprise described camera.
Description of drawings
Fig. 1 is the sectional view of the example in the utility model.
Fig. 2 is the exploded perspective view of the example in the utility model.
Fig. 3, Fig. 4, Fig. 5 are to be respectively the expansion synoptic diagram of each formation shown in Fig. 2.
Fig. 6 to Figure 17 be make the magnetite set time, the synoptic diagram that each magnetite portion is made up.
Figure 18 is a synoptic diagram of making the 2nd magnetite portion of magnetite set as shown in Figure 1.
Figure 19 is a synoptic diagram of making trapezoidal magnetite portion.
(symbol description)
3 yokes (shell of holding concurrently)
5 pedestal part
7 lens supports bodies
9 front side springs
11 rear side springs
12 rear side pads
The set of 13 magnetites
13a1,13a2,13a3, the 1st magnetite portion of 13a4 magnetite set
13b 1,13b2,13b3, the 1st magnetite portion of 13b4 magnetite set
15 coils
17 front side pads
Embodiment
Following with reference to accompanying drawing, describe with regard to the example of the utility model.
Lens driver 1 in this example is the lens driver that is assembled in automatic focusing camera (this camera is as an example of the camera) lining in the mobile phone (mobile phone is as an example of electronic equipment).As shown in Figure 2, this lens driver 1 comprises: with the yoke 3 that magnetics such as iron constitute, the also double shell of doing lens driver 1 of this yoke 3; Lens supports body 7; Front side spring 9; Rear side spring 11; And the pedestal part 5 that is configured in the rear side of yoke 3.Fixing coil 15 on the periphery of lens supports body 7.Disposing the front side pad 17 of insulativity between yoke 3 and the front side spring 9.Disposing the rear side pad 12 of insulativity between lens supports body 7 and the rear side spring 11.Such lens driver is very miniaturization.
Yoke 3 comprises: view is dimetric periphery from the plane, front side, and slightly dimetric interior week of plan view.The inner peripheral surface of yoke 3 is being fixed magnetite set 13.To detail in the back about magnetite set 13.
The lens supports body 7 of support of lens moves freely along optical axis direction (fore-and-aft direction) in interior all sides of yoke 3.Lens supports body 7 is made up of lens support 20 cylindraceous and the annular flange portion 22 that is arranged on the optical axis direction rear side of lens support 20.
It is cylindric that lens support 20 slightly is, and fixing lens (having omitted lens among each figure) on the interior week of lens support 20 in advance.
Interior all sidepieces of front side spring 9 are installed on the lens supports body 7, and the periphery sidepiece is fixed on the yoke 3.In addition, interior all sidepieces and periphery sidepiece elastically deformable is being connected.
In this example, be formed with terminal 33 on side's sidepiece 30 of formation rear side spring 11, be formed with terminal 35 on the other party sidepiece 32, each terminal 33,35 is connecting power supply terminal.In addition, side's sidepiece 30 waits through welding respectively with other party sidepiece 32 and is electrically connected with each coil 15, supplies power to coil 15 from rear side spring 11.
The plan view of the peripheral shape of pedestal part 5 is a quadrangle, is fixing the periphery sidepiece 11b of rear side spring 11 on its bottom.
Yoke 3 is being permanently connected with pedestal part 5 on periphery, has also formed the shell of lens driver 1 simultaneously.
Here, describe with regard to magnetite set 13 with reference to Fig. 1.As shown in Figure 1, magnetite set 13 comprises: the cross section be dimetric 4 the 1st magnetite portions (13a1,13a2,13a3,13a4); And, between 2 the adjacent magnetite portions in said 4 magnetite portions, and sectional view be hexagonal the 2nd magnetite portion (13b1,13b2,13b3,13b4).The peripheral shape of magnetite set 13 is 8 dihedrals, and interior all shapes also are 8 dihedrals.As shown in Figure 1, magnetite set 13 is disposed the 2nd such magnetite, so that outer circumferential side and interior all sides all become continuous in each bight.Here being meant continuously of said outer circumferential side, the part of joining of the 1st adjacent magnetite portion, very close to each other at outer circumferential side.Also have, the thickness (from the bight along the direction in radial direction-point to radially from center bight-thick to the meat of all sides of magnetite portion) of magnetite portion in bight of outer circumferential side that is positioned at magnetite set 13 is bigger than the thickness that is positioned at outer circumferential side bight magnetite portion in addition.
Like this, interior all sides of magnetite set 13, outer circumferential side all is 8 dihedrals; And; Magnetite set 13 all is continuous at outer circumferential side and interior all sides in each bight, so, compared with not having continuous occasion in each bight magnetite set 13; Stronger magnetic density can be produced, thereby the driving efficient of lens driver 1 can be improved.
Below, the manufacturing that just constitutes each magnetite portion of magnetite set 13 describes.As shown in Figure 1, (13a3 13a4) is quadrangle for 13a1,13a2 in the 1st magnetite portion of magnetite set 13.So according to the size of the 1st magnetite, tabular magnetite that will be bigger cuts off and gets final product.Such manufacturing approach, cost are comparatively cheap.But (13b3 13b4) is 6 dihedrals for 13b1,13b2, unlike the such easy manufacturing of the 1st magnetite portion in the 2nd magnetite portion.Under this occasion, can be shown in figure 18, when making the 2nd magnetite portion, make earlier and be dimetric magnetite portion (A, B) (E F), combines them afterwards for C, D with being (right angle) leg-of-mutton magnetite portion.Like this, just made easily.
Next, all be polygonal occasion with regard to peripheral shape and interior all shapes of magnetite set 13, bright for instance its manufacturing.
(1) the equal occasion of polygonal limit number of polygonal limit number of the peripheral shape of magnetite set 13 and interior all shapes.
Here, all be the occasion of 4 (shown in Fig. 9～13) or 8 (shown in Figure 14～15) with the limit number of peripheral shape and the limit number of interior all shapes, describe.Shown in Fig. 9～12, the magnetite set 13 magnetite portions by a plurality of quadrangles (rectangle (comprising square), trapezoidal) combine.Specifically, the dimetric magnetite of 4 shown in dotted line among Fig. 9 portion (A, B, C, D); Or 4 the dimetric magnetite portions (A, B, C, D) shown in dotted line among Figure 10; Or 8 the dimetric magnetite portions (A, B, C, D, F, G, H, I) shown in dotted line among Figure 11; Or 4 the dimetric magnetite portions (A, B, C, D) shown in dotted line among Figure 12.Also have, always need not to form by dimetric magnetite portion.Magnetite set 13 also can 4 the trapezoidal magnetite portions (A, B, C, D) shown in dotted line among Figure 13 be made up.When making shown in figure 13 magnetite portion shown in trapezoidal, can be shown in figure 19, tabular magnetite that will be bigger, for example, along dotted line L1, L2 cuts, and makes it to become the bar shaped magnetite.Then, further cut into trapezoidal magnetite portion (A, B, C, D, E, F) to the bar shaped magnetite.Shown in figure 14, can gather 13 to magnetite and make up by the dimetric magnetite of 8 shown in dotted line portion (A, B, C, D, E, F, G, H) and 16 right-angle triangles (A1, A2, B1, B2, C1, C2, D1, D2, E1, E2, F1, F2, G1, G2, H1, H2).But under this occasion, the number of packages of parts is more, can be shown in figure 15, form magnetite set 13 by 8 trapezoidal magnetite portions (A, B, C, D, E, F, G, H).When making 8 trapezoidal magnetite portions shown in figure 15, can adopt manufacturing approach shown in figure 19.
(2) the polygonal limit number of the peripheral shape of magnetite set 13 is more than the occasion of the polygonal limit number of interior all shapes.
Here, be 8 with the polygonal limit number of peripheral shape, the polygonal limit number of interior all shapes is 4, and (as among Figure 16, the magnetite set 13 shown in the solid line) describes for example.Under this occasion, magnetite set 13 can be by 8 shown in the dotted line among Figure 16 the magnetite portion (A1, A2, B1, B2, C1, C2, D1, D2) of dimetric magnetite portion (A, B, C, D, E, F, G, H) and 8 right-angle triangles combine.Under this occasion,, can shown in the dotted line among Figure 17, be combined into magnetite set 13 by 4 trapezoidal magnetite portions (A, B, C, D) and 4 leg-of-mutton magnetite portions (E, F, G, H) in order to reduce the number of packages of parts.Certainly, when making trapezoidal magnetite portion, can adopt the manufacturing approach of that kind shown in figure 19.
(3) the polygonal limit number of the peripheral shape of magnetite set 13 is less than the occasion of the polygonal limit number of interior all shapes.
Here, be 4 with the polygonal limit number of peripheral shape, the polygonal limit number of interior all shapes is 8, and (as in Fig. 6～8, the magnetite set 13 shown in the solid line) describe for example.Shown in the dotted line among Fig. 6, magnetite set 13 by: be dimetric magnetite portion (A, B, C, D) and rectangular leg-of-mutton magnetite portion (E, F, G, H) forms; Perhaps shown in the dotted line among Fig. 7, by: dimetric magnetite portion (A, B, C, D) be, rectangular leg-of-mutton magnetite portion (I, J, K, L, M, N, O), and the magnetite portion (E, F, G, H) that is equilateral triangle; Perhaps shown in the dotted line among Fig. 8, be combined to form magnetite set 13 by: rectangular leg-of-mutton magnetite portion (A, B, C, D) and the magnetite portion (E, F, G, H) that is equilateral triangle.
As stated, the magnetite set 13 magnetite portions by a plurality of easy manufacturings combine, so the manufacturing of magnetite set 13 is easier to, and then reduce manufacturing cost.Also have, outer circumferential side and interior all sides of magnetite combination 13 all are continuous (very close to each other), so, there is the occasion in discontinuous (by the gap) to compare with outer circumferential side with either side in interior all sides, can produce stronger magnetic density.And then can improve the driving efficient of lens driver 1 therefore.
Lens driver 1 with such structure; For example; In the occasion that focuses on, when in coil 15, feeding electric current, lens supports body 7 is just under the electromagnetic force effect of (coil 15 and magnetite are gathered between 13); Move along optical axis direction, and stop at the place that the 1st power (application of force of the fore-and-aft direction of front side spring 9 and rear side spring 11 make a concerted effort) and the 2nd power (coil 15 and magnetite are gathered the said electromagnetic force that is produced between 13) balance each other.Also have, when not when coil 15 feeds electric currents, because the making a concerted effort of the application of force of the fore-and-aft direction of front side spring 9 and rear side spring 11, lens supports body 7 is just got back to original position.Here, magnetite set 13 and coil 15 have constituted the electromagnetic force drive division that lens supports body 7 is moved along the optical axis direction of lens, and front side spring and rear side spring have then constituted the mobile restrictions of restriction lens supports body 7.
Interior all sides of magnetite set 13, the limit number of outer circumferential side are not limited in this example such, obviously, interior all sides of magnetite set 13, the limit number of outer circumferential side can be 2P dihedral (P is not less than 2 natural number).Also have, interior all sides of magnetite set 13, the limit number of outer circumferential side might not equate.Also just say that outer circumferential side is 2M dihedral (M is not less than 2 natural number), when interior all sides were 2N dihedral (N is not less than 2 natural number), the value of M and N equated perhaps unequal and all can., when considering the situation of actual manufacturing, the value of preferred M and N is 2,3,4.
Magnetite in the utility model set 13 is the occasions in focusing, when coming the mobile lens supporter with electromagnetic force, uses as the magnetite that produces this electromagnetic force, but is not limited to this.Magnetite in the utility model set 13 also can be applicable to because that hand is trembled is former thereby cause departing from of image, when revising this and departing from, comes the mobile lens supporter with electromagnetic force, as the magnetite effect that produces this electromagnetic force.
Much less, the utility model is not limited to above-mentioned example, in the scope that does not break away from the utility model main idea, can do all changes.
Claims (8)
1. lens driver comprises:
The lens supports body, its support of lens;
Magnetically-actuated portion, it has magnetite and coil, feeds electric current to said coil, produces electromagnetic force between magnetite and the coil, through this electromagnetic force said lens supports body is moved to the optical axis direction of lens; And
Housing department, this housing department are covered with said lens supports body and said magnetically-actuated portion,
It is characterized in that,
Said magnetite is said magnetite set; Be only to have the magnetite portion of straight line to constitute by a plurality of, the peripheral shape of gathering from the said magnetite of optical axis direction is the 2M dihedral, and M is not less than 2 natural number; And very close to each other being configured of interior week of the said shell in edge; The set of said magnetite be shaped as the 2N dihedral interior week, N is not less than 2 natural number, M and N are identical or different.
2. lens driver as claimed in claim 1 is characterized in that, from optical axis direction, each magnetite portion of said a plurality of magnetite portion is quadrangle or triangle.
3. lens driver as claimed in claim 1; It is characterized in that; Be positioned at the thickness of magnetite portion in bight of the outer circumferential side of magnetite set, promptly the meat along the bight of the radial direction at magnetite set center is thick, and is bigger than the thickness that is positioned at the magnetite portion beyond the outer circumferential side bight.
4. lens driver as claimed in claim 1 is characterized in that, said coil configuration is in interior all sides of said magnetite set, and, form along the inner peripheral surface shape of said magnetite set.
5. lens driver as claimed in claim 1 is characterized in that, further has restrictions, and this restrictions limits moving of said lens supports body through contending with said electromagnetic force.
6. lens driver as claimed in claim 1 is characterized in that M is 2,3, in 4 one, and N is 2,3, in 4 one.
7. a camera is characterized in that, comprises like each said lens driver in the claim 1 to 6.
8. an electronic equipment is characterized in that, comprises camera as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204620768U CN202330839U (en) | 2011-11-18 | 2011-11-18 | Lens driving device, photographing device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204620768U CN202330839U (en) | 2011-11-18 | 2011-11-18 | Lens driving device, photographing device and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330839U true CN202330839U (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204620768U Expired - Lifetime CN202330839U (en) | 2011-11-18 | 2011-11-18 | Lens driving device, photographing device and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123410A (en) * | 2011-11-18 | 2013-05-29 | 思考电机（上海）有限公司 | Lens drive device, photographic device and electronic device |
-
2011
- 2011-11-18 CN CN2011204620768U patent/CN202330839U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123410A (en) * | 2011-11-18 | 2013-05-29 | 思考电机（上海）有限公司 | Lens drive device, photographic device and electronic device |
| CN103123410B (en) * | 2011-11-18 | 2015-12-16 | 新思考电机有限公司 | Lens driver, camera and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD. Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD. Effective date: 20150722 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150722 Address after: 314112 Jiashan City, Jiaxing province Huimin County Street, No., Jia Jia Road, building 3, 1 floor, 58 Patentee after: New math courses Electric Machine Co., Ltd Address before: 201613 No. 38 Teng Teng Road, Songjiang District export processing zone, Shanghai, China Patentee before: Shicoh Motor (Shanghai) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |