CN205880328U - Lens driving device - Google Patents
Lens driving device Download PDFInfo
- Publication number
- CN205880328U CN205880328U CN201620746520.1U CN201620746520U CN205880328U CN 205880328 U CN205880328 U CN 205880328U CN 201620746520 U CN201620746520 U CN 201620746520U CN 205880328 U CN205880328 U CN 205880328U
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- Prior art keywords
- fixed mount
- lens
- dust
- downside
- lens carrier
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Abstract
The utility model relates to a lens driving device, including the downside mount, its central part is formed with the through -hole, encloses the interior periphery of through -hole extends a barricade towards the lens support. The downside mount be formed with the binding dust district in lens support one side, binding dust district surface is equipped with and is used for the stickum of dust and particle that bonds, and lies in the periphery side of barricade. Still be formed with a plurality of sunken dirt pockets of catching in the binding dust district, a plurality of at least a part of degree of depth and size that have the difference of catching in the dirt pocket. The utility model discloses a be formed with a plurality of sunken dirt pockets of catching that have the different degree of depth and size in the binding dust of lens driving device's the downside mount district to increase binding dust district surface area, increase and catch the dirt probability, catch the dust that the size is different. In catching the dirt pocket, the relative binding dust of the some district surface that the dust was bondd increases to some extent to multiplicable tack strength of catching behind the dirt, the effect of catching big particle powder dirt is better, ensures the effect that the camera shot.
Description
Technical field
This utility model relates to a kind of lens carrier applying bias force by being supported on suspension on one box body to be carried out
The lens driver of focusing, particularly to the lens driver of a kind of good dustproof effect.
Background technology
In recent years, the photographic head being loaded in mobile phone or panel type terminal etc. not only has a high pixel, and mostly
Also there is automatic focusing mechanism.There is driving means many uses voice coil motor (Voil Coil of the photographic head of automatic focusing mechanism
Motor, VCM).
Such as shown in Fig. 5 and Fig. 6, the lens driver employing voice coil motor includes: middle position be formed for
Keep the lens carrier 3 of the threaded portion 3d of lens (not shown)；The driving coil 4 being installed on lens carrier 3；Square outrigger
9, it is installed on lens carrier 3 around, is made up of magnetics such as soft irons and as outside crown cap；Upside fixed mount 8, it sets
Put in outrigger 9 inside upper part；Downside fixed mount 1, is arranged on below lens carrier 3, is oppositely arranged with upside fixed mount 8；Multiple
Magnet 6, it is installed on outrigger 9, and peripheral shape is formed as complying with the shape of (coupling) outrigger 9 inwall, inner circumferential shape shape
Become and comply with the shape driving coil 4 periphery；Upper spring 7, its internal side diameter 7e is formed as corresponding with lens carrier 3 upper surface
Shape, is connected with the upper end of lens carrier 3, and its outside diameter 7d is formed as and the plate in the upside fixed mount 8 being installed on outrigger 9
The shape that spring profile maintaining part 8d is corresponding, fixes with upside fixed mount 8 and is connected；And lower spring 2, its outside diameter 2d is formed
For the shape corresponding with flat spring profile maintaining part 1d in downside fixed mount 1, it is installed on the fixed mount 1 of downside.Upper spring 7
With lower spring 2 for side and upper side suspension support lens carrier 3 from below.
Coil 4 is driven to be arranged on magnetic that produced, that radially distribute around this driving coil 4 by outrigger 9 and Magnet 6
In Chang.Therefore, along with energising, drive coil 4 to produce the Lorentz force towards subject direction (top, lower section).Drive coil 4
Under the effect of Lorentz force, lens carrier 3 is made to move to the pre-determined bit balanced each other with the recuperability of lower spring 2 and upper spring 7
Put.
Downside fixed mount 1 central part is formed with circular open, and imaging device is positioned under the circular open of downside fixed mount 1
Side.The edge part surrounding described circular open of downside fixed mount 1 integrally extends between a cylindrical shape towards lens carrier
Wall 1f.When lens carrier is positioned at initial position (being not powered on), partition 1f is inserted in inside lens carrier, thus plays certain
Dust-proof effect.But, in the environment space of our life, there is dust everywhere, owing to VCM drives, partition 1f, downside
Being formed with l-shaped clearance bottom fixed mount 1 and between lens carrier lower end, dust is still easily accessible circular open, thus falls
On imaging device, affect the shooting of photographic head and effect of taking pictures.
Summary of the invention
The purpose of this utility model is to provide a kind of more preferable lens driver of dust-proof effect.
A kind of lens driver, including for the lens carrier of loading lens, upside fixed mount, downside fixed mount, use
In lens carrier suspension is supported in upside fixed mount and downside fixed mount between spring assembly and be used for driving lens to prop up
Frame moves to realize the electromagnetic drive mechanism of focusing along the optical axis direction of lens.Wherein, the central part of downside fixed mount is formed
Through hole, the inner rim surrounding described through hole extends a barricade towards lens carrier.Propping up towards lens of described downside fixed mount
Being formed with binding dust district in frame one side, surface, binding dust district is provided with the stickum for bond dust and microgranule, and is positioned at described gear
The outer circumferential side of wall.Be also formed with the dirt pocket of catching of multiple depression in described binding dust district, the plurality of catch in dirt pocket at least some of
There is the different degree of depth and size.
Preferably, the plurality of optical axis catching the most described lens of dirt pocket is rotationally symmetrical distribution.
As a kind of embodiment, described spring assembly includes epipleural spring and lower side panel spring, described epipleural bullet
The inner circumferential side of spring connects lens carrier top, fixed mount on the upside of the connection of its outer circumferential side, and the inner circumferential side of described lower side panel spring connects
Lens carrier bottom, fixed mount on the downside of the connection of its outer circumferential side.
As a kind of embodiment, the position near its neighboring of described downside fixed mount is also formed with propping up towards lens
The annular stop wall that frame extends.
As a kind of embodiment, described lens driver also includes the magnetic being fastened on the tubular on the fixed mount of downside
Gonosome outrigger, described upside fixed mount is fixed on outrigger inner upper, and the bottom of described outrigger is arranged on described spacing walls
Outer circumferential side, and be closely affixed with the lateral wall of spacing walls.
As a kind of embodiment, the lateral wall of described barricade is provided with the stickum for bond dust and microgranule.
As a kind of embodiment, the medial wall of described outrigger is provided with for boning at least adjacent to the part of downside fixed mount
Dust and the stickum of microgranule.
The downside fixed mount surface configuration of lens driver of the present utility model has binding dust district, binding dust to be also formed with in district
Multiple depressions with different depth and size catch dirt pocket, thus increase binding dust district surface area, increase and catch dirt probability.In addition have
There are catching dirt pocket and can catching the dust that size is different of different depth and the depression of size, in catching dirt pocket, the point that dust is bondd
Surface, binding dust district relatively increased, thus can increase the intensity that adheres after catching dirt, and the effect of capture big dust particle is more preferable, really
Protect the effect that photographic head is taken pictures.
Accompanying drawing explanation
Fig. 1 be downside fixed mount and the lens carrier of the lens driver of this utility model one embodiment along lens light
Axial profile.
Fig. 2 is the enlarged drawing in A portion in Fig. 1.
Fig. 3 is the schematic perspective view of downside fixed mount in Fig. 1.
Fig. 4 is the schematic perspective view of a jiao of downside fixed mount in another embodiment.
Fig. 5 is the explosive view of the lens driver of existing use voice coil motor.
Fig. 6 is the profile of lens driver in Fig. 5.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, this utility model lens driver is described in further detail.
Fig. 1, Fig. 2 and Fig. 3 illustrate only the downside fixed mount 20 of the lens driver of this utility model preferred embodiment
With lens carrier 10.The lens driver of the present embodiment also uses voice coil motor, for simplifying explanation, with Fig. 5 in the present embodiment
The parts similar with the lens driver in Fig. 6 no longer illustrate and describe in detail.Lens driver mainly includes for filling
Carry the lens carrier 10 of lens 80, upside fixed mount, downside fixed mount 20, be used for lens carrier 10 suspension being supported in upside admittedly
Determine the spring assembly between frame and downside fixed mount 20, for driving lens carrier 10 to move to realize along the optical axis direction of lens
Focusing electromagnetic drive mechanism and cover on the magnetic outrigger outside lens driver.
Lens carrier 10 is in column, and its central part forms circular open, and opening inwall is formed and can coordinate with lens periphery
Screw thread 12.Lens carrier 10 is installed between upside fixed mount and downside fixed mount 20, and by epipleural spring and downside
Flat spring is connected with upside fixed mount and downside fixed mount 20, at the support lower suspension of epipleural spring and lower side panel spring in upper
Between side fixed mount and downside fixed mount 20.Concrete, spring assembly can include epipleural spring and lower side panel spring.Epipleural
The inner circumferential side of spring connects lens carrier 10 top, fixed mount on the upside of the connection of its outer circumferential side.The inner circumferential side of lower side panel spring connects
Lens carrier 10 bottom, fixed mount 20 on the downside of the connection of its outer circumferential side.
Magnetic outrigger is tubular, and the through hole for lens shooting is formed on its bottom, and its peristome is towards downside fixed mount
20 are buckled on the fixed mount 20 of downside.Corresponding, the position near its neighboring of downside fixed mount 20 is formed props up towards lens
The annular stop wall 26 that frame 10 extends, the end of the peristome of outrigger is arranged on the outer circumferential side of spacing walls 26, and with spacing walls 26
Lateral wall be closely affixed, thus cylinder sidewall and downside fixed mount 20 form dust-proof barrier together.Outside upside fixed mount is fixed on
Frame is internal close or is close to (namely top in outrigger) bottom cylinder.
Electromagnetic drive mechanism includes driving coil (the optical axis direction volume around lens being wrapped on lens carrier 10 periphery wall
Around) and be arranged in multiple Magnet of coil periphery.Magnet is fixed on the fixed mount of upside, and outrigger is simultaneously as the magnetic of Magnet
Yoke, thus drive coil to be in the magnetic field radially distributed produced by outrigger and Magnet.By to drive coil electricity,
This driving coil produces the Lorentz force in the direction (upper and lower to) towards subject.Coil is driven to utilize the Lorentz produced
Power, the precalculated position making lens carrier 10 balance to the recuperability with epipleural spring and lower side panel spring is moved.
The position that the central part of downside fixed mount 20 is corresponding with lens 80 is formed with through hole 28, arranges shooting below through hole 28
Head sensor 90, and the inner rim surrounding through hole 28 extends the barricade 22 of an annular towards lens carrier 10.And lens carrier
The bottom 14 of 10 is preferably formed into cylindric, thus in the case of driving coil to be not powered on, the bottom of lens carrier 10
14 are inserted in barricade 22 inner circumferential side or are enclosed within the outer circumferential side of barricade 22.So, barricade 22 defines and prevents dust from barricade 22
Side enters the dust-break element of through hole 28.
It is formed with binding dust district 24 in the one side towards lens carrier 10 of downside fixed mount 20, in the present embodiment, is positioned at gear
Region between wall 22 and spacing walls 26 is binding dust district 24.Surface, binding dust district 24 is provided with the goo for bond dust and microgranule
Matter, such as synthetic resin, or polybutadiene, or the adhesive sticker such as polybutadiene and cinnamic mixture (preferably 2-10 has
Sticking glue).Be also formed with multiple depression in binding dust district 24 catches dirt pocket 242,244,246.Wherein, catch dirt pocket 242, catch
Dirt pocket 244, the degree of depth relative to downside fixed mount 20 surface catching dirt pocket 246 and size (are i.e. perpendicular in the plane of the degree of depth
Size/area) different.In this example, catching dirt pocket 244 and be positioned at the bottom of the hole catching dirt pocket 242, it is deep that the degree of depth relatively catches dirt pocket 242, but size
Less, and be distributed at the corner of downside fixed mount 20, at this, space is bigger.Catch dirt pocket 246 and be located close to downside fixed mount 20
The position of the midpoint on four limits, size is minimum compared with catching dirt pocket 242,244.Thus catch dirt pocket 244,242 and 246 and coordinate, increase
Add binding dust district actual surface area, increase and catch dirt probability.In addition there is the catching dirt pocket and can catch chi of depression of different depth and size
Very little different dust, in catching dirt pocket, the point that dust is bondd increased relative to surface, binding dust district, thus after can increasing and catching dirt
Adhere intensity, the effect of capture big dust particle is more preferable.
Additionally, in the present embodiment, multiple optical axises catching dirt pocket 244,242 and 246 relative lens are rotationally symmetrical distribution, from
And making the center of gravity of downside fixed mount maintain center, equipment runs more stable.In Fig. 3, only suitability shows and catches dirt pocket
244,242 and 246, it is possible to understand that, shape and the position of catching dirt pocket are not limited to this, can arrange according to actual needs.
In other embodiments, as to the auxiliary in binding dust district 24 with supplement, the magnetic outside lens driver is covered on
The part at least adjacent to downside fixed mount of the medial wall of external frame is provided with the stickum for bond dust and microgranule.Not
On the premise of affecting lens carrier motion, the lateral wall of barricade 22 also can be provided with the goo for bond dust and microgranule
Matter, thus have grit at large when by gap between lens carrier lower end and barricade 22, can be captured.
In other embodiments, as shown in Figure 4, downside fixed mount 20 be positioned at the region inside barricade 22 and spacing walls 26
In, only at corner, more spacious region be provided with the binding dust district 24 ' of the most curved strip.Each binding dust district 24 ' is each other
Can be advisable adapting to peripheral parts shape without specific symmetrical relations so that the area in binding dust region as far as possible greatly.Binding dust district
It is all provided with two in 24 ' and mutually nested catches dirt pocket 242 ' and 244 ', be used for increasing binding dust area, more effectively binding dust and capture relatively
Bulky grain grit.
Although description of the present utility model being combined embodiments above carry out, but, it is familiar with the art
Personnel can carry out many replacement, modifications and variations according to above-mentioned content, be apparent from.Therefore, all such
Substitute, improve and change in the spirit and scope being included in appended claims.
Claims (7)
1. a lens driver, including:
Lens carrier for loading lens；
Upside fixed mount；
Downside fixed mount, its central part is formed with through hole, and the inner rim surrounding described through hole extends a gear towards lens carrier
Wall；
For lens carrier suspension being supported in the spring assembly between upside fixed mount and downside fixed mount；And
For driving lens carrier to move to realize the electromagnetic drive mechanism of focusing along the optical axis direction of lens；
Described downside fixed mount towards lens carrier one side on be formed with binding dust district, surface, binding dust district is provided with for the dust that bonds
With the stickum of microgranule the outer circumferential side that is positioned at described barricade, it is characterised in that: it is also formed with multiple recessed in described binding dust district
That falls into catches dirt pocket, the plurality of catch in dirt pocket there is the different degree of depth and size at least partially.
Lens driver the most according to claim 1, it is characterised in that the plurality of dirt pocket the most described lens of catching
Optical axis is rotationally symmetrical distribution.
Lens driver the most according to claim 1, it is characterised in that described spring assembly include epipleural spring and
Lower side panel spring, the connection lens carrier top, inner circumferential side of described epipleural spring, fixed mount on the upside of the connection of its outer circumferential side, described
The inner circumferential side of lower side panel spring connects lens carrier bottom, fixed mount on the downside of the connection of its outer circumferential side.
Lens driver the most according to claim 3, it is characterised in that its neighboring close of described downside fixed mount
Position be also formed with towards lens carrier extend annular stop wall.
Lens driver the most according to claim 4, it is characterised in that also include the cylinder being fastened on the fixed mount of downside
The magnetic outrigger of shape, described upside fixed mount is fixed on outrigger inner upper, and the bottom of described outrigger is arranged on described limit
The outer circumferential side of position wall, and be closely affixed with the lateral wall of spacing walls.
Lens driver the most according to claim 5, it is characterised in that the lateral wall of described barricade is provided with for gluing
Knot dust and the stickum of microgranule.
7. according to the lens driver described in claim 5 or 6, it is characterised in that the medial wall of described outrigger at least adjacent to
The part of downside fixed mount is provided with the stickum for bond dust and microgranule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620746520.1U CN205880328U (en) | 2016-07-15 | 2016-07-15 | Lens driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620746520.1U CN205880328U (en) | 2016-07-15 | 2016-07-15 | Lens driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880328U true CN205880328U (en) | 2017-01-11 |
Family
ID=57696011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620746520.1U Active CN205880328U (en) | 2016-07-15 | 2016-07-15 | Lens driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205880328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755787A (en) * | 2020-12-25 | 2022-07-15 | 新思考电机有限公司 | Driving device, camera device and electronic equipment |
-
2016
- 2016-07-15 CN CN201620746520.1U patent/CN205880328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755787A (en) * | 2020-12-25 | 2022-07-15 | 新思考电机有限公司 | Driving device, camera device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211221 Address after: 516083 Xiangshuihe Industrial Park, Dayawan Economic and Technological Development Zone, Huizhou City, Guangdong Province Patentee after: Huizhou Sazhide Optoelectronics Technology Co.,Ltd. Address before: 516083 Xiangshui River Industrial Park, Longshan Jiu Road, Daya Bay, Huizhou City, Guangdong Province Patentee before: HUIZHOU DAYA BAY EVER BRIGHT ELECTRONICS & INDUSTRIAL Co.,Ltd. Patentee before: JSS OPTICAL TECHNOLOGY Co.,Ltd. Patentee before: HUIZHOU DAYA BAY JSS OPTICAL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |