CN101630890A - Flat spring plate and voice coil motor having same - Google Patents
Flat spring plate and voice coil motor having same Download PDFInfo
- Publication number
- CN101630890A CN101630890A CN200810302769A CN200810302769A CN101630890A CN 101630890 A CN101630890 A CN 101630890A CN 200810302769 A CN200810302769 A CN 200810302769A CN 200810302769 A CN200810302769 A CN 200810302769A CN 101630890 A CN101630890 A CN 101630890A
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- elastic piece
- flat elastic
- plate frame
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Abstract
The invention provides a flat spring plate of a voice coil motor, which comprises a flat frame, an annular part positioned in the flat frame and four elastic parts uniformly distributed in the flat frame. Each elastic part comprises a serpentine section and a buffer section. One end of the serpentine section is fixed on the flat frame, while the other end is connected with one end of the buffer section. The other end of the buffer section is fixed on the annular part, and at least one hole is arranged on the buffer section. As the flat spring plate is provided with the serpentine section and the buffer section provided with the hole on the elastic section, the degree of a stress concentration in a side direction (a direction vertical to a central axis of the annular part) of the flat spring plate is low enough to ensure the better flexibility of the flat spring plate in the side direction. The invention also provides a voice coil motor having the flat spring.
Description
Technical field
The present invention relates to a kind of flat elastic piece and have the voice coil motor of this flat elastic piece.
Background technology
Voice coil motor has that volume is little, power consumption reaches advantages such as cheap less, the actuator that is suitable as in the electronic product (as digital camera, mobile phone, Digital Video etc.) (sees also Design of a voice coil motor used in thefocusing system of a digital video camera, Magnetics, IEEE Transactions onVolume 41, Issue 10, Oct.2005 Page (s): 3979-3981).
Common voice coil motor mainly comprises a fixed mount and an adjustable shelf and an at least one flat elastic piece that is installed in movably in this fixed mount.The plate frame of this flat elastic piece is fixed on this fixed mount, and the ring part of this flat elastic piece is fixed on this adjustable shelf, and when relative this fixed mount of this adjustable shelf was movable, the elastic portion of this flat elastic piece was controlled the activity precision of this adjustable shelf.
Yet, the flat elastic piece of tradition voice coil motor is not good perpendicular to the pliability of the central axis direction of the ring part side direction of voice coil motor (below be called), thereby make when the voice coil motor with this flat elastic piece suffers lateral impact, this flat elastic piece does not damage because of the pliability on its side direction is good easily, and then has shortened the useful life of this voice coil motor.
Summary of the invention
In view of this, be necessary to provide a kind of voice coil motor that has preferable flexual flat elastic piece and have this flat elastic piece.
A kind of flat elastic piece, it comprises a plate frame, ring part and four elastic portion that are evenly distributed on this plate frame that are positioned at this plate frame.Each elastic portion comprises wriggle a section and a breeze way.One end of the section of should wriggling is fixed on this plate frame, and this other end that wriggles section is connected with an end of this breeze way, and the other end of this breeze way is fixed on this ring part, and offers at least one hole on this breeze way.
A kind of voice coil motor, it has above-mentioned flat elastic piece.
Compared with prior art, described flat elastic piece and have the voice coil motor of this flat elastic piece, wriggle section and offer porose breeze way by being provided with in elastic portion, the degree that the stress of this flat elastic piece on side direction is concentrated reduces, thereby makes this flat elastic piece have preferable pliability on side direction.
Description of drawings
The schematic diagram of the voice coil motor that Fig. 1 provides for embodiment of the present invention, this voice coil motor has flat elastic piece.
The schematic diagram of the flat elastic piece that Fig. 2 provides for first embodiment of the invention.
The schematic diagram of the flat elastic piece that Fig. 3 provides for second embodiment of the invention.
The schematic diagram of the flat elastic piece that Fig. 4 provides for third embodiment of the invention.
Embodiment
See also Fig. 1 and Fig. 2, the voice coil motor 200 for embodiment of the present invention provides uses for a camera lens module (figure does not show).This voice coil motor 200 comprises that the fixed mount 210, one of a both ends open are contained in this fixed mount 210 and the adjustable shelf 220 of both ends open, two flat elastic pieces 100 that are individually fixed in the two ends of this fixed mount 210 versatilely.
This flat elastic piece 100 comprises a plate frame 10, ring part 20 and four elastic portion 30 that are evenly distributed on this plate frame 10 that are positioned at this plate frame 10.In the present embodiment, this plate frame 10 be shaped as rectangle, this plate frame 10 is surrounded by four sides 12, is appreciated that the shape of this plate frame 10 can be circle.
This elastic portion 30 comprises the 32 and breeze ways 34 of section that wriggle.One end of the section 32 of should wriggling is fixed on the side 12 of this plate frame 10, and preferably, this end that wriggles section 32 is fixed on the point that two adjacent sides 12 of this plate frame 10 intersect.Be appreciated that this plate frame 10 be shaped as circle the time, this end that wriggles section 32 is fixed on the circumference of this plate frame 10.The other end of the section 32 of should wriggling is connected with an end of this breeze way 34, and the other end of this breeze way 34 is fixed on this ring part 20.Offer two holes 340 on this breeze way 34, preferably, the size shape in two holes 340 is all identical.Be appreciated that on this breeze way 34 and can offer a plurality of holes.Being provided with of this hole 340 solves the problem that stress is easily arranged because of the unexpected variation of width between this sinuous section 32 and this breeze way 34, can effectively promote the pliability of this elastic portion 30 and still possess certain rigidity.The section 32 of should wriggling turn that at least one is curved 320, and each curved 320 has a peak 322, and the stroke that this at least one peak 322 will the section of wriggling 32 is divided into a plurality of camber line strokes 324.Need to prove that this is bent 320 and can be quarter bend, it is curved also to have can be radian.In the present embodiment, this section 32 of wriggling turned three curved 320, thereby have three peaks 322, the stroke that these three peaks 322 will the section of wriggling 32 is divided into 4 camber line strokes 324.
The flat elastic piece 100 that first embodiment of the invention provides and have the voice coil motor 200 of this flat elastic piece 100, by the breeze way 34 that wriggles section 32 and offer porose 340 is set in elastic portion 30, the degree that the stress of this flat elastic piece 100 on side direction is concentrated reduces, thereby makes this flat elastic piece 100 have preferable pliability on side direction.
See also Fig. 3, the flat elastic piece 100a of the voice coil motor that provides for second embodiment of the invention (figure does not show).The difference of the flat elastic piece 100 that this flat elastic piece 100a and first execution mode provide is that this breeze way 34a offers a hole 340a, and the stroke that this at least one peak 322a will the section of wriggling 32a is divided into a plurality of rectilinear path 324a.
See also Fig. 4, the flat elastic piece 100b of the voice coil motor that provides for third embodiment of the invention (figure does not show).The difference of the flat elastic piece 100 that this flat elastic piece 100b and first execution mode provide is, this plate frame 10b is shaped as circle, and this end that wriggles section 32b is fixed on the circumference of this plate frame 10b.
In sum, flat elastic piece provided by the invention and have the voice coil motor of this flat elastic piece, wriggle section and offer porose breeze way by being provided with in elastic portion, the degree that the stress of this flat elastic piece on side direction is concentrated reduces, thereby makes this flat elastic piece have preferable pliability on side direction.
In addition, those skilled in the art also can do other variation in spirit of the present invention.So the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (9)
1. flat elastic piece, it comprises a plate frame, ring part and four elastic portion that are evenly distributed on this plate frame that are positioned at this plate frame, it is characterized in that, each elastic portion comprises wriggle a section and a breeze way, one end of the section of should wriggling is fixed on this plate frame, the other end of the section of should wriggling is connected with an end of this breeze way, and the other end of this breeze way is fixed on this ring part, and offers at least one hole on this breeze way.
2. flat elastic piece as claimed in claim 1 is characterized in that: this section of wriggling has turned that at least one is curved, and each is curved to have a peak, and the stroke that this at least one peak will the section of wriggling is divided into a plurality of camber line strokes.
3. flat elastic piece as claimed in claim 1 is characterized in that: this section of wriggling has turned that at least one is curved, and each is curved to have a peak, and the stroke that this at least one peak will the section of wriggling is divided into a plurality of rectilinear paths.
4. as claim 2 or 3 described flat elastic pieces, it is characterized in that: this is curved to be quarter bend.
5. flat elastic piece as claimed in claim 1 is characterized in that: the size shape in the hole that offers on this breeze way is all identical.
6. flat elastic piece as claimed in claim 1 is characterized in that: this plate frame be shaped as rectangle, this plate frame is surrounded by four sides, this end that wriggles section is fixed on the side of this plate frame.
7. flat elastic piece as claimed in claim 6 is characterized in that: on the point that the two adjacent sides that this end of sinuous section is fixed on this plate frame intersect.
8. flat elastic piece as claimed in claim 1 is characterized in that: this plate frame be shaped as circle, this end that wriggles section is fixed on the circumference of this plate frame.
9. voice coil motor, it has flat elastic piece as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810302769A CN101630890A (en) | 2008-07-17 | 2008-07-17 | Flat spring plate and voice coil motor having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810302769A CN101630890A (en) | 2008-07-17 | 2008-07-17 | Flat spring plate and voice coil motor having same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101630890A true CN101630890A (en) | 2010-01-20 |
Family
ID=41575876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810302769A Pending CN101630890A (en) | 2008-07-17 | 2008-07-17 | Flat spring plate and voice coil motor having same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101630890A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997380B (en) * | 2009-08-21 | 2012-11-14 | 亚洲光学股份有限公司 | Flat elastic piece of voice coil motor |
| CN103997180A (en) * | 2014-06-11 | 2014-08-20 | 深圳市世尊科技有限公司 | Controllable multi-axial-movement spring for voice coil motor |
| CN105721743A (en) * | 2014-12-03 | 2016-06-29 | 佳能企业股份有限公司 | Camera module and electronic device using same |
| CN106300864A (en) * | 2015-05-28 | 2017-01-04 | 鸿富锦精密工业（深圳）有限公司 | Shell fragment and apply the voice coil motor of this shell fragment, electronic installation |
| US10180558B2 (en) | 2014-11-28 | 2019-01-15 | Ability Enterprise Co., Ltd. | Imaging module and electronic device using the same |
-
2008
- 2008-07-17 CN CN200810302769A patent/CN101630890A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997380B (en) * | 2009-08-21 | 2012-11-14 | 亚洲光学股份有限公司 | Flat elastic piece of voice coil motor |
| CN103997180A (en) * | 2014-06-11 | 2014-08-20 | 深圳市世尊科技有限公司 | Controllable multi-axial-movement spring for voice coil motor |
| CN103997180B (en) * | 2014-06-11 | 2016-08-10 | 深圳市世尊科技有限公司 | For the controlled multi-spindle of voice coil motor to motion spring |
| US10180558B2 (en) | 2014-11-28 | 2019-01-15 | Ability Enterprise Co., Ltd. | Imaging module and electronic device using the same |
| CN105721743A (en) * | 2014-12-03 | 2016-06-29 | 佳能企业股份有限公司 | Camera module and electronic device using same |
| CN105721743B (en) * | 2014-12-03 | 2020-01-21 | 佳能企业股份有限公司 | Camera module and electronic device using same |
| CN106300864A (en) * | 2015-05-28 | 2017-01-04 | 鸿富锦精密工业（深圳）有限公司 | Shell fragment and apply the voice coil motor of this shell fragment, electronic installation |
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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: 20100120 |