CN204790261U - Lens driving device - Google Patents
Lens driving device Download PDFInfo
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- CN204790261U CN204790261U CN201520610336.XU CN201520610336U CN204790261U CN 204790261 U CN204790261 U CN 204790261U CN 201520610336 U CN201520610336 U CN 201520610336U CN 204790261 U CN204790261 U CN 204790261U
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- yoke
- pedestal
- lens
- auto
- wiring board
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Abstract
The utility model provides a lens driving device, it includes base and the yoke of cover on the base. The yoke lower extreme is connected with the mode that lateral wall of the base passes through the glue bonding, in addition, the yoke still is formed with buckle structure with the position that the base links to each other. Buckle structure is one kind in the following structure: 1 ) the lower extreme of the lateral wall of yoke is formed with the extendible flake in band -pass hole, be formed with corresponding lug on the lateral wall of base, 2 ) the lower extreme of the lateral wall of yoke is formed with hook portion, be formed with corresponding recess on the lateral wall of base. The utility model discloses corresponding of lens driving device's yoke and base is formed with buckle structure on the position, and behind yoke and pedestal connection, even the adhesion stress of independence glue, both are readily releasable not also to lens driving device's bulk strength is enough strong, and product stability is high.
Description
Technical field
The utility model relates to one and is applied in camera, the lens driver on such as, camera in mobile phone.
Background technology
Existingly be applied to mobile device, such as, lens driver on mobile phone all has automatic focusing function, a lot of lens driver also has anti-trembling function, namely when camera produces shake, make lens or for keeping the lens carrier of lens to swing to the direction of the optical axis direction perpendicular to lens, shaking to suppress the image imaged on imageing sensor or being shifted.
Such as, Chinese Patent Application No. 201410183565.8, the utility application in May 4 in 2014 applying date discloses one " lens driver of band anti-trembling function ", it comprise auto-focusing unit, swing unit, for the pedestal that supports described swing unit and the yoke be buckled on pedestal.Yoke is covered on pedestal, in auto-focusing unit and swing unit being housed in.Wherein the lower edge of yoke is bonded on pedestal sidewall by glue.Because bond area is less, bulk strength is less, and when made by larger impulsive force, yoke easily comes off from pedestal or is shifted, and has a strong impact on product performance.
Summary of the invention
The utility model object be to provide a kind of when suffering greater impact power yoke be also not easy the lens driver coming off from pedestal or be shifted.
A kind of lens driver, it comprises pedestal, the wiring board be fixed on pedestal, arrange and make lens at the auto-focusing unit of Z-direction movement for support of lens and to cover on above pedestal and by described wiring board and auto-focusing unit housing in interior yoke in the circuit board.The mode that described yoke lower end and pedestal sidewall are bondd by glue is connected, and in addition, the position that described yoke is connected with pedestal is also formed with buckle structure.Described buckle structure is the one in following structure: 1) end of the sidewall of described yoke extends at least two panels Extendible flake downwards, each Extendible flake is formed with through hole or groove; Position corresponding with described at least two panels Extendible flake on the sidewall of described pedestal is formed with the projection protruded laterally; Described projection inserts described through hole or yoke is connected with substrate latch fastener by groove; 2) end of the sidewall of described yoke is formed first at least two hook portions that downward-extension extends towards lens driver center again; Position corresponding with described at least two hook portions on the sidewall of described pedestal is formed with the groove caved inward; Described at least two hook portions are inserted described groove and yoke are connected with substrate latch fastener.
Preferably, the described 1st) to plant in buckle structure, the end face being positioned at Z-direction front of described projection is formed as the inclined-plane facilitating described Extendible flake end to slip over; The end face being positioned at Z-direction rear of described projection is perpendicular to Z axis or be formed as the hook portion that can catch on described Extendible flake through hole or groove.
In one embodiment, described auto-focusing unit comprises: for the lens carrier of fixing described lens; Be wound in the auto-focusing coil in the circumferential lateral surface of lens carrier; Be disposed in the magnet holder of described lens carrier outer circumferential side; Be fixed on permanent magnet inside magnet holder and with radially separating space mutually opposing with auto-focusing coil; And inner circumferential side is fixedly connected with described lens carrier, outer circumferential side is fixedly connected with described magnet holder, for by the front side spring member of lens carrier suspension support in magnet holder and rear side spring member.
In one in embodiment, described lens driver also comprises the swing unit for making described auto-focusing unit swing to the direction at a right angle with Z axis, described swing unit comprises the extension from described wiring board to Z-direction front, for the linear springs of magnet holder described in suspension support; Described linear springs one end is fixedly connected with described wiring board, and the other end is fixedly connected with front side spring member.
Preferably, described wiring board is flexible circuit board, and the position that described pedestal is connected with wiring board corresponding to described linear springs is formed with clearance position, and to make when being vibrated, the end that wiring board is connected with linear springs can swing in Z-direction.
The yoke of the utility model lens driver and the correspondence position of pedestal are formed with buckle structure, after yoke is connected with pedestal, even if do not rely on the cohesive force of glue, both are not easily separated yet, thus the bulk strength of lens driver is enough strong, product stability is high.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the lens driver of the utility model one embodiment.
Fig. 2 is the stereographic map of the lens driver removing yoke in Fig. 1.
Fig. 3 is the yoke of the utility model one embodiment and the stereographic map of pedestal.
Fig. 4 is the combination schematic diagram of yoke and pedestal in Fig. 3.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, the utility model lens driver is described in further detail.
As depicted in figs. 1 and 2, in an embodiment, lens driver mainly comprises pedestal 11, be fastened on the yoke 40 on pedestal 11 and the auto-focusing unit that is housed in space that pedestal and yoke surround and swing unit.
In this manual, for convenience of description, the optical axis defining not shown lens is the Z axis in three-dimensional system of coordinate, and using object side as Z-direction front, also the positive dirction (+Z side) of i.e. Z axis.In the parts below related to, one end/surface being positioned at+Z side is called the front end/front surface of these parts, and one end/surface being positioned at-Z side is called the rear end/rear surface/lower end/lower surface etc. of these parts.
Auto-focusing unit is used for support of lens and lens is moved in Z-direction, and it mainly comprises: for the lens carrier 18 of the cylindrical shape of fixing not shown lens; Be wound in the auto-focusing coil (not shown) in the circumferential lateral surface of lens carrier 18; Make pole surface towards X-direction and Y-direction and be disposed in around the axle parallel with Z axis with 90 degree of intervals, radially separating the permanent magnet 14 of four mutually opposing tabulars of ground, space with auto-focusing coil; Inner side is fixed with the magnet holder 13 of the frame-shaped of permanent magnet 14; And front side spring member 171 and rear side spring member 172.
The inner circumferential side of front side spring member 171 is fixedly connected with the front end of lens carrier 18, and its outer circumferential side is fixedly connected with the front end of magnet holder 13.The inner circumferential side of rear side spring member 172 is fixedly connected with the rear end of lens carrier 18, and its outer circumferential side is fixedly connected with the rear end of magnet holder 13, thus by lens carrier 18 suspension support inside magnet holder 13.
By the lens carrier 18 of front side spring member 171 and rear side spring member 172 suspension supports, play function as auto-focusing unit.Along with to auto-focusing coil (not shown) energising, lens carrier 18 can be made to move to+Z-direction.
When swing unit is for vibration occurs on lens driving unit, auto-focusing unit is swung to the direction at a right angle with Z axis, thus suppress shake.Swing unit mainly comprises: the flexible PCB 50 of central portion opening; In four linear springs 12 that Z-direction extends; The magnet holder 13 mentioned in the explanation of above-mentioned auto-focusing unit; Permanent magnet 14; And be wound in Z-direction and with-Z the side of permanent magnet 14 with separating space opposite, and be installed on X side oscillation coil and the Y side oscillation coil 20 of the+Z side of flexible PCB 50.Therefore, the magnet holder 13 of the present embodiment and permanent magnet 14 are shared by auto-focusing unit and swing unit.Wherein, flexible PCB 50 is fixed on pedestal 11, linear springs 12 one end is fixed on the bight of flexible PCB 50, the other end is connected with the bight of the front side spring member 171 being fixed on magnet holder 13 front end, thus swing unit by spring member by auto-focusing unit suspension support on the+Z side of pedestal 11 and flexible PCB 50.
As shown in Figure 3 and Figure 4, the processing of ferromagnetism plate stretch that yoke 40 is made up of soft iron etc. or Punching Technology etc. are shaped, it comprise a front panel 41 that is square, central portion opening and from the surrounding of front panel 41 downwards (also namely towards Z-direction rear) extend, four sidewalls 42 surrounding annular.In the present embodiment, wherein two relative sidewalls 42 extend two panels Extendible flake 43 downwards, Extendible flake 43 have square through hole (also can be described as groove) 44.
Pedestal 11 is square, and its central portion opening, position corresponding with two panels Extendible flake 43 on its sidewall is formed laterally, is also the projection 111 that X side or Y side are protruded.The end face being positioned at Z-direction front of projection 111 is formed as the inclined-plane facilitating Extendible flake 43 end to slip over, thus when assembling, yoke 43 can be detained on the base 11 smoothly, and projection 111 can insert in the through hole 44 on Extendible flake 43 smoothly, forms the buckle link structure of yoke and pedestal.In addition, the end face being positioned at Z-direction rear of projection 111 is perpendicular to Z axis or the hook portion being formed as the through hole 44 that can catch on Extendible flake 43.Thus after projection 111 inserts through hole 44, the edge that Extendible flake 43 surrounds through hole 44 can be caught on, yoke 40 cannot be departed from from pedestal 11 easily.
Yoke 40 and pedestal 11, except relying on except above buckle structure is connected, also utilize glue to be bondd in yoke sidewall 42 lower end and pedestal sidewall, guarantee that the Lao Du degree connected can resist default impulsive force.
In addition, pedestal 11 sidewall is also formed for spacing spacing block set 112, after Extendible flake 43 and projection 111 are fastened togather, the existence of spacing block set 112 makes yoke to move down further, guarantees the steadiness that Extendible flake 43 is connected with projection 112.
Especially, the corner place of pedestal 11, the position be also namely connected with wiring board 50 corresponding to linear springs 12 is formed with clearance position (unfilled corner), thus the position that wiring board 50 is connected with linear springs 12 loses the support of pedestal 11, becomes elastic beam.The lens driver formed thus is when making auto-focusing unit swing, and the existence of elastic beam makes auto-focusing unit be difficult to the direction flexure around Z axis rotates occur, to suppress lens axis run-off the straight.In addition, even if when making auto-focusing unit move towards the direction (+Z-direction) away from pedestal 11 or the direction (-Z-direction) near pedestal 11 under the effect of the impulsive forces such as whereabouts, elastic beam also can to Z-direction generation elastic springing, to reduce to put on the tension force in linear springs 12 or force of compression.Therefore, elastic beam can prevent linear springs 12 from the faults such as fracture occurring.
In other embodiments, the quantity of Extendible flake can be more than 3 or 3, and the quantity of corresponding projection 112 is also more than 3 or 3, its fixing better effects if.
In the above embodiments, the projection 112 of the pin thread of buckle structure-is namely arranged on the base 11, and the through hole 44 of Extendible flake 43 of and box-is namely arranged in yoke 40.In a variant embodiment, the pin thread of buckle structure and the position of box interchangeable.Such as but not limited to, the lower end being positioned at Z-direction rear of the sidewall of yoke is formed first at least two hook portions that downward-extension extends towards lens driver center again, and position corresponding with described at least two hook portions on the sidewall of pedestal is formed with the groove caved inward.Thus yoke is connected with substrate latch fastener by the groove of at least two hook portion insertion pedestal sidewalls.Identical with embodiment above of its effect.
Above, use embodiment to be illustrated the utility model, but technical scope of the present utility model is not limited to the scope described in described embodiment.To those skilled in the art, can be apparent to described embodiment applying numerous variations or improvement.The embodiment form applying to change or improve also can be included in technical scope of the present utility model, and this scope from claims can clearly be learnt.
Claims (5)
1. a lens driver, comprising:
Pedestal;
Be fixed on the wiring board on pedestal;
Arrange auto-focusing unit in the circuit board, it is for support of lens and lens are moved in Z-direction; And
To cover on above pedestal and by described wiring board and auto-focusing unit housing in interior yoke, the mode that described yoke lower end and pedestal sidewall are bondd by glue is connected;
It is characterized in that, the position that described yoke is connected with pedestal is also formed with buckle structure, and described buckle structure is the one in following structure:
1) end of the sidewall of described yoke extends at least two panels Extendible flake downwards, each Extendible flake is formed with through hole or groove; Position corresponding with described at least two panels Extendible flake on the sidewall of described pedestal is formed with the projection protruded laterally; Described projection inserts described through hole or yoke is connected with substrate latch fastener by groove;
2) end of the sidewall of described yoke is formed first at least two hook portions that downward-extension extends towards lens driver center again; Position corresponding with described at least two hook portions on the sidewall of described pedestal is formed with the groove caved inward; Described at least two hook portions are inserted described groove and yoke are connected with substrate latch fastener.
2. lens driver according to claim 1, is characterized in that, the described 1st) to plant in buckle structure, the end face being positioned at Z-direction front of described projection is formed as the inclined-plane facilitating described Extendible flake end to slip over; The end face being positioned at Z-direction rear of described projection is perpendicular to Z axis or be formed as the hook portion that can catch on described Extendible flake through hole or groove.
3. lens driver according to claim 1, is characterized in that, described auto-focusing unit comprises:
For the lens carrier of fixing described lens;
Be wound in the auto-focusing coil in the circumferential lateral surface of lens carrier;
Be disposed in the magnet holder of described lens carrier outer circumferential side;
Be fixed on permanent magnet inside magnet holder and with radially separating space mutually opposing with auto-focusing coil; And
Inner circumferential side is fixedly connected with described lens carrier, outer circumferential side is fixedly connected with described magnet holder, for by the front side spring member of lens carrier suspension support in magnet holder and rear side spring member.
4. lens driver according to claim 3, it is characterized in that, also comprise the swing unit for making described auto-focusing unit swing to the direction at a right angle with Z axis, described swing unit comprises the extension from described wiring board to Z-direction front, for the linear springs of magnet holder described in suspension support; Described linear springs one end is fixedly connected with described wiring board, and the other end is fixedly connected with front side spring member.
5. lens driver according to claim 4, it is characterized in that, described wiring board is flexible circuit board, the position that described pedestal is connected with wiring board corresponding to described linear springs is formed with clearance position, to make when being vibrated, the end that wiring board is connected with linear springs can swing in Z-direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610336.XU CN204790261U (en) | 2015-08-14 | 2015-08-14 | Lens driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610336.XU CN204790261U (en) | 2015-08-14 | 2015-08-14 | Lens driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204790261U true CN204790261U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520610336.XU Active CN204790261U (en) | 2015-08-14 | 2015-08-14 | Lens driving device |
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| Country | Link |
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| CN (1) | CN204790261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957680A (en) * | 2017-05-17 | 2018-12-07 | 台湾东电化股份有限公司 | driving mechanism |
-
2015
- 2015-08-14 CN CN201520610336.XU patent/CN204790261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957680A (en) * | 2017-05-17 | 2018-12-07 | 台湾东电化股份有限公司 | driving mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| 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. |