The content of the invention
In view of this, it is necessary to which providing a kind of prevents dust and particle from dropping down onto the voice coil motor on CIS and making
With the camera module of the voice coil motor.
A kind of voice coil motor, it includes a housing, a fixation kit, a movable component and a load bearing seat.The housing is used
In the collecting fixation kit, the movable component and the load bearing seat.The fixation kit has one first accommodating cavity.It is described
Movable component is contained in first accommodating cavity.The movable component has a fitted tube and is around in the line of the fitted tube outer wall
Circle.The fitted tube has one second accommodating cavity.Second accommodating cavity is used to house a camera lens module.The fixation kit support
On the load bearing seat.The housing has a base plate and multiple side plates.The base plate be used for be arranged at a CIS with
Between the camera lens module.The base plate includes a loading end, and the multiple side plate is respectively arranged at the loading end of the base plate
On.The base plate has first opening being coaxially disposed with the fixation kit and the movable component.Described first opens
The diameter of mouth is less than the opening diameter of second accommodating cavity and more than or equal to the internal diameter of the camera lens module.The voice coil motor
A dust guard is further included, the dust guard is arranged on the loading end of the base plate.The load bearing seat is carried on institute
State on dust guard.
A kind of camera module, it includes an image sensing unit, a voice coil motor and a camera lens module.The image sensing
Unit includes a substrate and a CIS.The CIS mechanicalness and it is electrically connected on substrate.The voice coil loudspeaker voice coil
Motor load bearing is on the substrate and around the CIS.The voice coil motor includes a housing, a fixation kit, one
Movable component and a load bearing seat.The housing is used to house the fixation kit, the movable component and the load bearing seat.It is described
Fixation kit has one first accommodating cavity, and the movable component is contained in first accommodating cavity, the fixation kit support
On the load bearing seat.The movable component has a fitted tube and is around in the coil of the fitted tube outer wall.The fitted tube has one
Second accommodating cavity.The camera lens module includes a lens barrel.The lens barrel is housed in second accommodating cavity.The housing has
One base plate and multiple side plates.The base plate is arranged between the CIS and the camera lens module.The base plate includes one
First surface and a second surface being oppositely arranged with the first surface.The substrate is affixed on the first surface.Institute
Multiple side plates are stated to be respectively arranged on the second surface of base plate.The base plate has one with the fixation kit and the activity group
The first opening that part is coaxially disposed.It is described first opening diameter less than second accommodating cavity opening diameter and more than etc.
In the internal diameter of the lens barrel of the camera lens module.The voice coil motor further includes a dust guard, and the dust guard is set
On the loading end of the base plate, the load bearing seat is carried on the dust guard.
Relative to prior art, dust guard, camera lens module and movable component are set on the housing of voice coil motor of the present invention
The dust and particle that friction is produced are fallen on dust guard, are influenceed so as to prevent dust and particle from dropping on CIS
Image quality.
Specific embodiment
Also referring to Fig. 1 to Fig. 3, for a kind of camera module 100 that embodiment of the present invention is provided.The camera module
100 include an image sensing unit 10, a voice coil motor 20 and a camera lens module 30.
The image sensing unit 10 includes a substrate 11 and a CIS 12.The mechanicalness of the CIS 12
And be electrically connected with the substrate 11.
The voice coil motor 20 is carried on the substrate 11 and around the CIS 12.The voice coil motor 20
Including a housing 21, a dust guard 22, a fixation kit 23,24, two shell fragments 25 of a movable component, a load bearing seat 26 and
Protecgulum 27.
The housing 21 is used to eliminate external electromagnetic to the interference of the voice coil motor 20 and prevent the voice coil motor 20
Electromagnetic effect its exterior electrical components work.The housing 21 can be by dilval, conductive plastics, surface conductance material
The magnetic shielding materials such as material, electro-conductive glass are made.In present embodiment, the section of the housing 21 is ' ㄩ ' shape, with a base plate
210 and four side plates 211.The base plate 210 is a tetragonal structure.The base plate 210 passes through colloid(It is not shown)It is installed in
On the substrate 11.The base plate 210 includes the first surface 213 and one and first table of one and the Joint of the substrate 11
The second surface 214 that face 213 is oppositely arranged.Four side plates 211 are respectively perpendicular the second surface 214 for being arranged at base plate 210
Four sides.The base plate 210 and four side plates 211 are collectively forming one for housing the dust guard 22, fixation kit 23, living
The accommodation space 212 of dynamic component 24, shell fragment 25 and load bearing seat 26.The geometric center of the base plate 210 opens up the first of a circle
Opening 215.The CIS 12 passes through the described first opening 215.First opening 215 is around the CIS
12.In present embodiment, the relative side plate 211 of one pair of which away from the position of the base plate 210 respectively to the accommodating sky
Between 212 be extended with a snap fit 216.The position that the place side plate 211 of described two snap fits 216 corresponds to the snap fit 216 offers
Hole slot 217, for making snap fit 216 that there is elasticity.
It is understood that in other embodiments, the snap fit 216 is alternatively one or more in two.
The dust guard 22 is colloid layer, and in present embodiment, the dust guard 22 is a double faced adhesive tape, and it is simultaneously
It is glued on the second surface 214 of the base plate 210 of the housing 21.
The fixation kit 23 includes a fixed mount 231 and the four packaged permanent magnets 232 in fixed mount 231.Institute
State fixed mount 231 be one in square tubular support body, its prism 2311 for including four separately and being parallel to each other and multiple
Connect the connecting rod 2312 of four prisms 2311.Four prisms 2311 of the fixed mount 231 and multiple connecting rods 2312
One first accommodating cavity 230 is surrounded jointly, and first accommodating cavity 230 is used to house the movable component 24.The fixed mount 231
Every side prism 2311 and connecting rod 2312 constitute put magnetic portion 2313, for housing the permanent magnet 232.It is described
The opposite end of each prism 2311 of fixed mount 231 each extends over out one first positioning along the length direction of the prism 2311
Post 2314.In present embodiment, the correspondence of the connecting rod 2312 position of snap fit 216 is provided with draw-in groove 2310.
The movable component 24 is installed in the first accommodating cavity 230 of fixation kit 23.The movable component 24 has one
Fitted tube 241 and it is around in the coil 242 of the outer wall of the fitted tube 241.The coil 242 is with the permanent magnet 232 just to setting.Institute
Fitted tube 241 is stated with generally cylindrical second accommodating cavity 240.Second accommodating cavity 240 is used for housing the camera lens
Module 30.On the base plate 210 with diameter greater than the housing 21 of second accommodating cavity 240 first opening 215 it is straight
Footpath.In present embodiment, internal thread 2401 is provided with second accommodating cavity 240.The side wall of second accommodating cavity 240 is along flat
Row extends to form multiple second locating dowels 2411 in the direction of principal axis of fitted tube 241.The multiple second locating dowel 2411 is distributed respectively
In four sides of the upper and lower surface of the fitted tube 241.
In present embodiment, the fixation kit 23, movable component 24 are coaxially disposed with the described first opening 215.
Described two shell fragments 25 are tetragonal structure, and each shell fragment 25 is respectively provided with a center through hole 250, and light passes through institute
Center through hole 250 is stated to incide on the CIS 12.In present embodiment, each shell fragment 25 correspondence fixed mount
231 multiple first locating dowels 2314 offer multiple first location holes 251, and the multiple second of the correspondence fitted tube 241 is determined
Position post 2411 offers multiple second location holes 252.Described two shell fragments 25 are separately positioned on the both sides of the fixed mount 231.
First location hole 251 is used to be positioned with the first locating dowel 2314 of the fixed mount 231.Second location hole 252 is used
Positioned in the second locating dowel 2411 with fitted tube 241.
It is understood that in practical application, can also save described two shell fragments 25.
The load bearing seat 26 has second suitable with the opening size of a second accommodating cavity 240, circular thang-kng
Hole 260 is so that light is injected and is imaged on the CIS 12.The fixed mount 231 is supported on the load bearing seat 26
On.The load bearing seat 26 is fixed on the dust guard 22, that is, the load bearing seat 26 is supported by the dust guard 22
On the second surface 214 of the base plate 210.
It is understood that in practical application, can also save the load bearing seat 26, and fixed mount 231 is directly anchored to
On the second surface 214 of the base plate 210 of the housing 21.
The shape of the protecgulum 27 is corresponding with size with the shape of the housing 21 with size, the center of the protecgulum 27
Offer the second opening 270 of a circle.The open-mouth ruler of the size more than second accommodating cavity 240 of second opening 270
It is very little.
The camera lens module 30 includes that a lens barrel 31 and multiple are housed in the eyeglass 32 in the lens barrel 31.The lens barrel 31
Outer surface be provided with external screw thread 311 for the phase spiral shell of internal thread 2401 with second accommodating cavity 240 of the fitted tube 241
Close.The internal diameter of the lens barrel 31 with diameter greater than the camera lens module 30 of first opening 215.It is understood that actual should
In, the diameter of first opening 215 can be equal to the internal diameter of the lens barrel 31 of the camera lens module 30.
During assembling, the fixation kit 23 that will first fit together, the movable component 24, the shell fragment 25 and described
Load bearing seat 26 is set on the housing 21 together.The snap fit 216 has elasticity, can provide certain elastic deformation energy
Power, supports in the draw-in groove 2310 of the fixed mount 231, so that the housing 21 preferably contains the fixation kit 23, institute
State movable component 24, the shell fragment 25 and the load bearing seat 26.Again by movable component 24 described in the camera lens module 30 precession.When
Described in the camera lens module 30 precession during movable component 24, because second accommodating cavity 240 is with diameter greater than the housing 21
The base plate 210 on first opening 215 diameter, internal thread 2401 and the lens barrel 31 of second accommodating cavity 240
External screw thread 311 between the rub dust and particle of generation drop down onto on the dust guard 22 and be blocked, when subsequently using, this
A little dust and particle will not be kicked up again, so that dust can be avoided to fall on the CIS 12, so as to improve
The image quality of camera module 100.Finally by the protecgulum 27, lid is located at the side of the housing 21 by way of gluing
Away from one end of the base plate 210, the camera lens module 30 is piercing in plate 211 by the second opening 270 of the protecgulum 27
Outside the protecgulum 27.
It is understood that for the person of ordinary skill of the art, can be done with technology according to the present invention design
Go out change and deformation that other various pictures are answered, and all these changes and deformation should all belong to the protection model of the claims in the present invention
Enclose.