CN103001447A - Modified miniature driving motor - Google Patents
Modified miniature driving motor Download PDFInfo
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- CN103001447A CN103001447A CN2012103749658A CN201210374965A CN103001447A CN 103001447 A CN103001447 A CN 103001447A CN 2012103749658 A CN2012103749658 A CN 2012103749658A CN 201210374965 A CN201210374965 A CN 201210374965A CN 103001447 A CN103001447 A CN 103001447A
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Abstract
The invention discloses a modified miniature driving motor which comprises an upper cover, an upper washer, an upper spring piece, a carrier, a coil component, a magnet component, a lower spring component and a lower washer. The magnet component includes four rectangular magnets, and each magnet is adjacent to a corresponding side wall of the upper cover, namely parallel to the corresponding side wall. A gap is reserved between adjacent two magnets. A magnetizer is disposed below the magnet component namely one side, away from the top wall of the upper cover, of the magnet component. The magnetizer comprises an integrated tabular magnetizer body which is provided with a central hole in the center. The magnetizer is disposed below the spring component. The lower washer comprises a pressing plate with a basic structure of a rectangle and support plates with each protruding up from an included angle between two adjacent edges of the pressing plate. Each support plate is located in the gap between adjacent two magnets, and the top surface of each support plate is abutted to an outer ring of the upper spring piece. By the use of the modified miniature driving motor, linear driving can be guaranteed effectively.
Description
Technical field
The invention belongs to micromachine structure-design technique field, be specifically related to a kind of modified model micro-driving motor.
Background technology
Micro-camera device has been widely used on mobile phone and the notebook computer, and modified model micro-driving motor wherein (also being the lens drive motors) is also done less and less.
Traditional modified model micro-driving motor generally comprises loam cake, Upper gasket, upper spring sheet, lens carrier, magnetite assembly, coil block, lower gasket, lower spring chip module and base; Traditional loam cake adopts permeability magnetic material to make, the magnetite assembly is positioned at the lid top wall below, and magnetite assembly below is without permeability magnetic material, so in the magnetite assembly most magnetic lines of force of each magnetite after passing coil block to entering the loam cake roof, and return this magnetite from the loam cake sidewall, form closed magnetic circuit; Thereby so that each magnetite near on the magnetic line of force of lid top wall one side comparatively intensive, and it is comparatively sparse away from the magnetic line of force of upper lid top wall one side, cause coil block in the process that moves up and down along with carrier, magnetic field of living in changes, and affects its Linear-moving effect.
In addition, this kind modified model micro-driving motor in use need to be at the built-in lens subassembly of its carrier, and its application target namely is in certain distance, and Linear Driving carrier and lens subassembly move back and forth.Described carrier and lens subassembly are for this kind modified model micro-driving motor, weight is heavier, can produce a larger gravity, in order to offset this gravity, in order to avoid affect the Linear Driving effect, need to when assembly, allow upper spring sheet and lower shell fragment produce an internal stress that is used for offsetting described carrier and lens generation gravity.Concrete mode is: adopt the suitable carrier of shape and size, after fixing upper spring sheet and lower shell fragment assembly, make upper spring sheet and lower shell fragment produce an elastic deformation, the elastic force that produces is used for the gravity of offset carrier and lens generation.
The difficult point that this mode is brought is: in order to guarantee elastically-deformable consistency, need the spacing between strict control upper spring sheet outer ring and the lower shell fragment outside, and the spacing between upper spring sheet inner ring and the lower shell fragment inner edge; Because the inner ring of upper spring sheet is fixed on carrier top, the inner edge of lower shell fragment is fixed on carrier base, both are fixed on the same parts, so only need to guarantee the machining accuracy of carrier, namely can be easy to control the spacing between upper spring sheet inner ring and the lower shell fragment inner edge; But upper spring sheet outer ring then is to be separately fixed on the different parts with the fixing of lower shell fragment outside, and between the two is the magnetite assembly than thick parts, but the machining accuracy of magnetite assembly self is lower, and error is larger, can not be used for locating distance between the two; In addition, in the traditional product, upper spring sheet outer ring and Upper gasket are fixed on and cover, and its installation site is limited by loam cake precision and fixed form; Lower shell fragment outside is fixed on the base by the lower gasket crimping, and its installation site is limited by base precision and fixed form; Final loam cake glueds joint again and is fixed on the base, so be difficult to accurately to guarantee the spacing between spring leaf outer ring and the lower shell fragment outside, also namely be difficult to guarantee the lucky offset carrier of elastic deformation of upper spring sheet and the generation of lower shell fragment and the gravity that lens produce, thereby affect the Linear Driving effect.
In addition, in the traditional product, each magnetite fixedly is its outer wall in abutting connection with the loam cake sidewall to be gluedd joint be fixed on the loam cake sidewall in the magnetite assembly, and its bonding effect can not be learnt by direct observation, so can't guarantee its glue-joint strength; Thereby cause in fall-down test, magnetite is owing to being subject to violent impulsive force, and is will be from the loam cake sidewall loosening even come off in case its glue-joint strength is slightly poor, causes defective products, needs improvements badly so its structure also exists.
Summary of the invention
The modified model micro-driving motor that the purpose of this invention is to provide a kind of Effective Raise Linear-moving effect.
The technical scheme that realizes the object of the invention is: a kind of modified model micro-driving motor comprises loam cake, Upper gasket, upper spring sheet, carrier, coil block, magnetite assembly, lower spring assembly and lower gasket; Described loam cake comprises roof and four sidewalls that link to each other with roof, and described roof center is provided with loophole; The silk spring that described upper spring sheet comprises outer ring, inner ring and connects described outer ring and inner ring; Described outer ring is in abutting connection with the Upper gasket setting, and described inner ring is fixed on the carrier top; Described carrier adopts plastics to make, and the center is provided with inner bolt hole, and external lens subassembly is arranged in this inner bolt hole; Described coil block is fixed on the carrier outer wall, and described magnetite assembly is set in the coil block outside, and between upper spring sheet and lower spring assembly; Described lower spring assembly comprises two lower shell fragments insulated from each other, and each time shell fragment comprises the silk spring of inner edge, outside and connection inner edge and outside; The inner edge of each time shell fragment is fixed on carrier base, and the outer edge abuts lower gasket arranges; It is characterized in that:
Described magnetite assembly comprises four cuboid magnetites, and each magnetite is in abutting connection with the corresponding sidewall setting of loam cake, also namely with a corresponding parallel sidewalls setting; Leave the gap between two adjacent magnetites; Also comprise be arranged on magnetite assembly below also be the magnetite assembly away from the magnetic conductive part of upper lid top wall one side, described magnetite assembly forms the flux path that passes coil block near a side and this magnetic conductive part of coil block; Described magnetic conductive part comprises the tabular magnetic conduction body that is made into integration, and the center is provided with a centre bore; Described lower gasket comprises that basic configuration is rectangular box-like pressing plate and the supporting bracket that projects upwards from the angle on the adjacent both sides of pressing plate; Each supporting bracket is arranged in the gap of adjacent two magnetites, and each supporting bracket is connected on the outer ring of upper spring sheet.
In the technique scheme, described loam cake adopts non-magnet material to make.
In the technique scheme, described loam cake adopts permeability magnetic material to make; The magnetite assembly is near also forming a flux path that passes coil block between a side of coil block and the upper lid top wall.
In the technique scheme, described lower gasket adopts non-magnetic metal material to make.
In the technique scheme, the two side ends that each support rim makes progress along the line in coil assembly week is connected on two adjacent magnetites.
The present invention has positive effect: (1) the present invention by also be the magnetite assembly below the magnetite assembly away from a side of lid top wall magnetic conductive part is set, described magnetite assembly forms the flux path that passes coil block near a side and this magnetic conductive part of coil block.When loam cake adopted non-magnet material to make, the flux path that coil block still can utilize magnetite assembly and magnetic conductive part to form was realized Linear Driving.When loam cake adopts permeability magnetic material to make, the magnetite assembly also passes the flux path of coil block with upper lid top wall formation one near a side of coil block, this structure can effective supply magnetite assembly magnetic field service efficiency, and can be in the process that coil block moves along with carrier, for coil block provides a more constant magnetic field, thus Effective Raise Linear Driving effect.In addition, described lower gasket comprises that basic configuration is rectangular box-like pressing plate and the supporting bracket that projects upwards from pressing plate; Each supporting bracket is arranged in the gap of adjacent two magnetites, and the top surface of each supporting bracket is connected on the outer ring of upper spring sheet.This support rim can accurately be located the spacing between upper spring sheet outer ring and the lower shell fragment outside, as long as guaranteed the machining accuracy of lower gasket, can effectively control spacing between upper spring sheet outer ring and the lower shell fragment outside, thereby effectively guarantee the lucky offset carrier of elastic deformation of upper spring sheet and lower shell fragment generation and the gravity that lens produce, and then improve the Linear Driving effect.
Description of drawings
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is a kind of explosive view of modified model micro-driving motor shown in Figure 1.
Embodiment
(embodiment 1)
Fig. 1 and Fig. 2 have shown the first embodiment of the present invention, and wherein, Fig. 1 is a kind of perspective view of the present invention; Fig. 2 is a kind of explosive view of modified model micro-driving motor shown in Figure 1.
The present embodiment is a kind of modified model micro-driving motor that drives the minisize pick-up head lens subassembly, see that Fig. 1 to shown in Figure 2, comprises loam cake 1, Upper gasket 120, upper spring sheet 2, carrier 3, coil block 4, magnetite assembly 5, lower spring assembly 6, magnetic conductive part 7 and lower gasket 9; Described Upper gasket 120, upper spring sheet 2, carrier 3, lower gasket 9 all adopt non-magnet material to make;
Described loam cake 1 comprises roof 11 and four sidewalls 12 that link to each other with roof 11, and described roof 11 centers are provided with loophole 13;
The silk spring 23 that described upper spring sheet 2 comprises outer ring 21, inner ring 22 and connects described outer ring 21 and inner ring 22; Described outer ring 21 is in abutting connection with the basal surface setting of Upper gasket 120, and described inner ring 22 is fixed on the carrier top;
Described carrier 3 adopts plastics to make, and the center is provided with inner bolt hole, and external lens subassembly is arranged in this inner bolt hole;
Described coil block 4 is fixed on carrier 3 outer walls, and described magnetite assembly 5 is set in coil block 4 outsides, and between upper spring sheet 2 and lower spring assembly 6;
Described magnetite assembly 25 comprises four cuboid magnetites 251, and each magnetite 251 also namely be arranged in parallel with a corresponding sidewall 212 in abutting connection with a corresponding sidewall 212 settings of loam cake; Each magnetite 51 is the N utmost point or the S utmost point near a side of coil block 4, is the S utmost point or the N utmost point away from a side of coil block 4; Leave the gap between two adjacent magnetites 51;
Described lower spring assembly 6 comprises two lower shell fragments 61 insulated from each other, and each time shell fragment 61 comprises inner edge 611, outside 612 and is connected inner edge 611 and the silk spring 613 of outside 612; The inner edge 611 of each time shell fragment 61 is fixed on carrier 3 bottoms, and outside 612 is in abutting connection with lower gasket 9 basal surface settings;
Described magnetic conductive part 7 be arranged on magnetite assembly 5 belows also be magnetite assembly 5 away from a side of loam cake 1 roof 11, described magnetite assembly 5 forms the flux path that passes coil block 4 near a side of coil block 4 and this magnetic conductive part 7;
Described magnetic conductive part 7 comprises the tabular magnetic conduction body 71 that is made into integration, and the center is provided with a centre bore 74.Described magnetic conductive part 7 is arranged on lower spring assembly 6 belows;
Described lower gasket 9 comprises that basic configuration is rectangular box-like pressing plate 91 and the supporting bracket 92 that projects upwards from the angle on pressing plate 91 adjacent both sides; Each supporting bracket 92 is arranged in the gap of adjacent two magnetites 51, and the top surface of each supporting bracket 92 is connected on the outer ring 21 of upper spring sheet.
In the present embodiment, described loam cake 1 adopts non-magnet material to make, so magnetite assembly 5 is near not forming flux path between a side of coil block 4 and the upper lid top wall.In the present embodiment, described magnetite assembly 5 forms the flux path that passes coil block 4 near a side and this magnetic conductive part 7 of coil block 4, for as far as possible so that the more magnetic line of force passes coil block 4, the inside edge of described magnetite assembly 5 is positioned on the magnetic conduction body 71 along the projection of direction from the top down, rather than is arranged in centre bore 74 or magnetic conduction body 61 outsides of magnetic conduction body 71.
Magnetic conductive part 7 in the present embodiment is arranged in the cavity that four sidewalls 12 of loam cake surround.
In the present embodiment, described lower gasket 9 adopts non-magnetic metal material to make, and can effectively guarantee bulk strength.
In the present embodiment, described upper lid top wall 11,, Upper gasket 120, the outer ring of upper spring sheet 2, the roof of lower gasket supporting bracket 92 all be to be fixedly linked by laser welding or bonding mode successively.In addition, the outside 612 of the pressing plate 91 of lower gasket, twice shell fragments 61, magnetic conductive part 7 also are fixedly linked by laser welding or bonding mode successively.
It is emphasized that, because the used lower gasket 9 of the present embodiment and magnetic conductive part 7 all adopt metal material to make, and both are close to twice shell fragments 61 and arrange, so for fear of twice shell fragment 61 short circuits, need at least to make magnetic conductive part 7, lower gasket 9 to insulate in the one side that contacts with twice shell fragments 61.In order to address this problem, can on the outer surface of magnetic conductive part 7, lower gasket 9 or lower shell fragment 61, form insulating barrier by chemical treatment or surface-coated; Can certainly add the insulation cushion lamella by the adjacent surface between magnetic conductive part 7, lower gasket 9, lower shell fragment 61 or insulating film layer overcomes.
(embodiment 2)
The present embodiment is substantially the same manner as Example 1, and difference is: described loam cake 1 adopts permeability magnetic material to make; Magnetite assembly 5 is near also forming a flux path between a side of coil block 4 and the upper lid top wall.This structure can effective supply magnetite assembly magnetic field service efficiency, and can be in the process that coil block moves along with carrier, for coil block provides a more constant magnetic field, thereby Effective Raise Linear Driving effect.
(embodiment 3)
The present embodiment is substantially the same manner as Example 1, and difference is: the two side ends that each support rim 12 makes progress along the line in 26 weeks of coil assembly is connected on two adjacent magnetites 251.This structure can limit the position of each magnetite on coil block is circumferential, increase the shock resistance of magnetite assembly, is conducive to improve the percent of pass of fall-down test.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (5)
1. a modified model micro-driving motor comprises loam cake, Upper gasket, upper spring sheet, carrier, coil block, magnetite assembly, lower spring assembly and lower gasket; Described loam cake comprises roof and four sidewalls that link to each other with roof, and described roof center is provided with loophole; The silk spring that described upper spring sheet comprises outer ring, inner ring and connects described outer ring and inner ring; Described outer ring is in abutting connection with the Upper gasket setting, and described inner ring is fixed on the carrier top; Described carrier adopts plastics to make, and the center is provided with inner bolt hole, and external lens subassembly is arranged in this inner bolt hole; Described coil block is fixed on the carrier outer wall, and described magnetite assembly is set in the coil block outside, and between upper spring sheet and lower spring assembly; Described lower spring assembly comprises two lower shell fragments insulated from each other, and each time shell fragment comprises the silk spring of inner edge, outside and connection inner edge and outside; The inner edge of each time shell fragment is fixed on carrier base, and the outer edge abuts lower gasket arranges; It is characterized in that:
Described magnetite assembly comprises four cuboid magnetites, and each magnetite is in abutting connection with the corresponding sidewall setting of loam cake, also namely with a corresponding parallel sidewalls setting; Leave the gap between two adjacent magnetites; Also comprise be arranged on magnetite assembly below also be the magnetite assembly away from the magnetic conductive part of upper lid top wall one side, described magnetite assembly forms the flux path that passes coil block near a side and this magnetic conductive part of coil block; Described magnetic conductive part comprises the tabular magnetic conduction body that is made into integration, and the center is provided with a centre bore; Described lower gasket comprises that basic configuration is rectangular box-like pressing plate and the supporting bracket that projects upwards from the angle on the adjacent both sides of pressing plate; Each supporting bracket is arranged in the gap of adjacent two magnetites, and each supporting bracket is connected on the outer ring of upper spring sheet.
2. modified model micro-driving motor according to claim 1 is characterized in that: described loam cake adopts non-magnet material to make.
3. modified model micro-driving motor according to claim 1 is characterized in that: described loam cake adopts permeability magnetic material to make; The magnetite assembly is near also forming a flux path that passes coil block between a side of coil block and the upper lid top wall.
4. modified model micro-driving motor according to claim 1, it is characterized in that: described lower gasket adopts non-magnetic metal material to make.
5. modified model micro-driving motor according to claim 1 is characterized in that: the two side ends that each support rim makes progress along the line in coil assembly week is connected on two adjacent magnetites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103749658A CN103001447A (en) | 2012-09-29 | 2012-09-29 | Modified miniature driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103749658A CN103001447A (en) | 2012-09-29 | 2012-09-29 | Modified miniature driving motor |
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| CN103001447A true CN103001447A (en) | 2013-03-27 |
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| CN2012103749658A Pending CN103001447A (en) | 2012-09-29 | 2012-09-29 | Modified miniature driving motor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227131A (en) * | 2008-02-03 | 2008-07-23 | 惠州市百宏微动技术工业有限公司 | Spring lamination pair for microminiaturization voice coil motor |
| CN201181355Y (en) * | 2008-02-15 | 2009-01-14 | 台湾东电化股份有限公司 | Electromagnetic interference prevention mechanism for micro-lens |
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
| CN201532486U (en) * | 2009-09-21 | 2010-07-21 | 常州美欧电子有限公司 | Lens driving device |
| CN101887157A (en) * | 2009-05-15 | 2010-11-17 | 东莞市盈聚电子科技有限公司 | Driving module for mobile phone lens |
| JP2010286532A (en) * | 2009-06-09 | 2010-12-24 | Nidec Sankyo Corp | Lens driving device |
| CN202931160U (en) * | 2012-09-29 | 2013-05-08 | 苏州贝腾特电子科技有限公司 | Improved mini driving motor |
-
2012
- 2012-09-29 CN CN2012103749658A patent/CN103001447A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227131A (en) * | 2008-02-03 | 2008-07-23 | 惠州市百宏微动技术工业有限公司 | Spring lamination pair for microminiaturization voice coil motor |
| CN201181355Y (en) * | 2008-02-15 | 2009-01-14 | 台湾东电化股份有限公司 | Electromagnetic interference prevention mechanism for micro-lens |
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
| CN101887157A (en) * | 2009-05-15 | 2010-11-17 | 东莞市盈聚电子科技有限公司 | Driving module for mobile phone lens |
| JP2010286532A (en) * | 2009-06-09 | 2010-12-24 | Nidec Sankyo Corp | Lens driving device |
| CN201532486U (en) * | 2009-09-21 | 2010-07-21 | 常州美欧电子有限公司 | Lens driving device |
| CN202931160U (en) * | 2012-09-29 | 2013-05-08 | 苏州贝腾特电子科技有限公司 | Improved mini driving motor |
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Owner name: SHENZHEN GUANGKONG DIGITAL PHOTOELECTRIC CO., LTD. Free format text: FORMER OWNER: SUZHOU BAITENGTE TECHNOLOGY CO., LTD. Effective date: 20140815 |
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Inventor after: Xia Taihong Inventor after: Liu Ping Inventor before: Hu Xiaoqing |
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Free format text: CORRECT: ADDRESS; FROM: 215121 SUZHOU, JIANGSU PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: HU XIAOQING TO: XIA TAIHONG LIU PING |
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Effective date of registration: 20140815 Address after: No. 20 Silicon Valley Power New Material Industrial Park A5 building 518000 Guangdong province Shenzhen city Longhua District Guanlan community bucket Dafu Industrial Zone, 3 floor Applicant after: SHENZHEN TOPVCM CO., LTD. Address before: 215121, Jiangsu, Suzhou Industrial Park, South Cross bumper harvest Plaza, 1, 809 Applicant before: Suzhou Beitengte Electronic Technology Co., Ltd. |
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Addressee: Hu Yan Document name: Notification of Passing Examination on Formalities |
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| C53 | Correction of patent of invention or patent application | ||
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Inventor after: Xia Taihong Inventor after: Peng Quanbin Inventor before: Xia Taihong Inventor before: Liu Ping |
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Free format text: CORRECT: INVENTOR; FROM: XIA TAIHONG LIU PING TO: XIA TAIHONG PENG QUANBIN |
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Application publication date: 20130327 |