CN202931162U - Improved mini driving motor - Google Patents
Improved mini driving motor Download PDFInfo
- Publication number
- CN202931162U CN202931162U CN 201220509917 CN201220509917U CN202931162U CN 202931162 U CN202931162 U CN 202931162U CN 201220509917 CN201220509917 CN 201220509917 CN 201220509917 U CN201220509917 U CN 201220509917U CN 202931162 U CN202931162 U CN 202931162U
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- Prior art keywords
- assembly
- driving motor
- magnetite
- coil block
- conductive part
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Abstract
The utility model discloses an improved mini driving motor, comprising an upper cover, an upper pad, an upper spring leaf, a carrier, a coil assembly, a magnet assembly, a lower spring assembly and a lower pad. The magnet assembly comprises four magnets, wherein the basic shape of each magnet is trapezoidal; one side of the each magnet close to the coil assembly is N pole or S pole, and one side of the magnet far from the coil assembly is S pole or N pole; each magnet is arranged in an included angle formed by two adjacent sidewalls of the upper cover; and a gap is left between two adjacent magnets. The lower pad comprises a pressure plate whose basic shape is a rectangular frame and supporting plates protruding upwardly from the pressure plate, wherein each supporting plate is positioned in the gap of two adjacent magnets, and the top surface of each supporting plate abuts against an outer ring of the upper spring leaf. The improved mini driving motor can effectively ensure linear driving effect.
Description
Technical field
The utility model belongs to micromachine structure-design technique field, is specifically related to a kind of modified model micro-driving motor.
Background technology
Micro-camera device has been widely used on mobile phone and notebook computer, and micro-driving motor wherein (also being the lens drive motors) is also done less and less.
Traditional micro-driving motor generally comprises upper cover, Upper gasket, upper spring sheet, lens carrier, magnetite assembly, coil block, lower gasket, lower spring chip module and base; Traditional upper cover adopts permeability magnetic material to make, the magnetite assembly is positioned at below lid top wall, 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 on enter the upper cover roof, and return this magnetite from the upper cover sidewall, form closed magnetic circuit; Thereby make 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 micro-driving motor in use need to be at the built-in lens subassembly of its carrier, and its application target is namely in certain distance, and Linear Driving carrier and lens subassembly move back and forth.Described carrier and lens subassembly are for this kind 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, and the strictly spacing between control upper spring sheet outer ring and lower shell fragment outside, and the spacing between upper spring sheet inner ring and 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 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 lower shell fragment inner edge; But the fixing of upper spring sheet outer ring and lower shell fragment outside is to be separately fixed on different parts, 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 traditional product, upper spring sheet outer ring and Upper gasket are fixed on and cover, and its installation site is limited by upper cover precision and fixed form; Lower shell fragment outside is fixed on base by the lower gasket crimping, and its installation site is limited by base precision and fixed form; Final upper cover glueds joint again and is fixed on base, so be difficult to accurately to guarantee the spacing between spring leaf outer ring and 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 traditional product, in the magnetite assembly, each magnetite is fixedly its outer wall in abutting connection with the upper cover sidewall to be gluedd joint be fixed on the upper cover sidewall, 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, will even come off from the upper cover sidewall is loosening in case its glue-joint strength is slightly poor owing to being subject to violent impulsive force, causes defective products, needs improvements badly so its structure also exists.
The utility model content
The purpose of this utility model is to provide a kind of modified model micro-driving motor of effective raising Linear-moving effect.
The technical scheme that realizes the utility model purpose is: a kind of modified model micro-driving motor comprises upper cover, Upper gasket, upper spring sheet, carrier, coil block, magnetite assembly, lower spring assembly and lower gasket; Described upper cover comprises roof and four sidewalls that are connected 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 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 outside coil block, and between upper spring sheet and lower spring assembly; Described magnetite assembly comprises that four basic configurations are trapezoidal magnetite, and each magnetite is the N utmost point or the S utmost point near a side of coil block, is the S utmost point or the N utmost point away from a side of coil block; Described each magnetite is arranged on an interior angle place of adjacent two the folded formation of sidewall of upper cover; Leave the gap between two adjacent magnetites; 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; Its design feature is: also comprise be arranged on magnetite assembly below be also the magnetite assembly away from the magnetic conductive part of upper lid top wall one side, described magnetite assembly forms near a side and this magnetic conductive part of coil block the flux path that passes 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 centre on pressing plate each limit; 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; The pressing plate of described lower gasket is crimped on the outside of twice shell fragments on the magnetic conduction body of magnetic conductive part.
In technique scheme, described upper cover adopts non-magnet material to make.
In technique scheme, described upper cover adopts permeability magnetic material to make; The magnetite assembly is near also forming a flux path between a side of coil block and upper lid top wall.
In technique scheme, described lower gasket adopts non-magnetic metal material to make.
In technique scheme, on the outer surface of described magnetic conductive part, lower gasket or lower shell fragment, be provided with the insulating barrier that forms by chemical treatment or surface-coated.
In technique scheme, be provided with insulation cushion lamella or insulating film layer between described magnetic conductive part and lower shell fragment and between described lower gasket and lower shell fragment.
In technique scheme, the inside edge of described magnetite assembly is positioned on the magnetic conduction body along the projection of direction from the top down.
In 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 utlity model has positive effect: (1) the utility model by be also the magnetite assembly below the magnetite assembly away from a side of lid top wall magnetic conductive part is set, described magnetite assembly forms near a side and this magnetic conductive part of coil block the flux path that passes coil block.When upper cover 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 upper cover adopts permeability magnetic material to make, the magnetite assembly also forms a flux path with upper lid top wall near a side of coil block, this structure can effectively provide the service efficiency in magnetite assembly magnetic field, and can be in the process that coil block moves along with carrier, for coil block provides a more constant magnetic field, thereby effectively improve the 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 lower shell fragment outside, as long as guaranteed the machining accuracy of lower gasket, can effectively control upper spring sheet outer ring and lower shell fragment the outside between spacing, 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 utility model;
Fig. 2 is a kind of front view of modified model micro-driving motor shown in Figure 1;
Fig. 3 is that modified model micro-driving motor shown in Figure 2 is along the cutaway view of A-A line;
Fig. 4 is a kind of explosive view of modified model micro-driving motor shown in Figure 1.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 4 has shown the first embodiment of the present utility model, and wherein, Fig. 1 is a kind of perspective view of the present utility model; Fig. 2 is a kind of front view of modified model micro-driving motor shown in Figure 1; Fig. 3 is that modified model micro-driving motor shown in Figure 2 is along the cutaway view of A-A line; Fig. 4 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 4, comprises upper cover 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 upper cover 1 comprises roof 11 and four sidewalls 12 that are connected 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 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 5 comprises that four basic configurations are trapezoidal magnetite 51, and 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; Described each magnetite 51 is arranged on an interior angle place of adjacent two the folded formation of sidewall of upper cover; 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 be also magnetite assembly 5 away from a side of upper cover 1 roof 11, described magnetite assembly 5 forms near a side and this magnetic conductive part 7 of coil block 4 flux path that passes coil block 4;
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 pressing plate 91; Described each supporting bracket 92 is positioned at the centre on pressing plate 91 each limits; 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 upper cover 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 upper lid top wall.In the present embodiment, described magnetite assembly 5 forms near a side and this magnetic conductive part 7 of coil block 4 flux path that passes coil block 4, in order to make as far as possible the more magnetic line of force pass coil block 4, the inside edge of described magnetite assembly 5 is positioned on 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 upper cover 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 be all 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 present embodiment lower gasket 9 used and magnetic conductive part 7 all adopt metal material to make, and both are close to twice shell fragments 61 and arrange, thus for fear of twice shell fragment 61 short circuits, need at least to make magnetic conductive part 7, lower gasket 9 with one side that twice shell fragments 61 contact on insulate.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 be by adding the insulation cushion lamella or insulating film layer overcomes on the adjacent surface between magnetic conductive part 7, lower gasket 9, lower shell fragment 61.
(embodiment 2)
The present embodiment is substantially the same manner as Example 1, and difference is: described upper cover 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 upper lid top wall.This structure can effectively provide the service efficiency in magnetite assembly magnetic field, and can in the process that coil block moves along with carrier, for coil block provides a more constant magnetic field, thereby effectively improve the 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, above-described embodiment of the present utility model is only for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.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 utility model extends out and still belong to protection range of the present utility model.
Claims (8)
1. a modified model micro-driving motor, comprise upper cover, Upper gasket, upper spring sheet, carrier, coil block, magnetite assembly, lower spring assembly and lower gasket; Described upper cover comprises roof and four sidewalls that are connected 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 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 outside coil block, and between upper spring sheet and lower spring assembly; Described magnetite assembly comprises that four basic configurations are trapezoidal magnetite, and each magnetite is the N utmost point or the S utmost point near a side of coil block, is the S utmost point or the N utmost point away from a side of coil block; Described each magnetite is arranged on an interior angle place of adjacent two the folded formation of sidewall of upper cover; Leave the gap between two adjacent magnetites; 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:
Also comprise be arranged on magnetite assembly below be also the magnetite assembly away from the magnetic conductive part of upper lid top wall one side, described magnetite assembly forms near a side and this magnetic conductive part of coil block the flux path that passes 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 centre on pressing plate each limit; 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; The pressing plate of described lower gasket is crimped on the outside of twice shell fragments on the magnetic conduction body of magnetic conductive part.
2. modified model micro-driving motor according to claim 1 is characterized in that: described upper cover adopts non-magnet material to make.
3. modified model micro-driving motor according to claim 1 is characterized in that: described upper cover adopts permeability magnetic material to make; The magnetite assembly is near also forming a flux path between a side of coil block and upper lid top wall.
4. modified model micro-driving motor according to claim 1 is characterized in that: described lower gasket adopts non-magnetic metal material to make.
5. modified model micro-driving motor according to claim 4, is characterized in that: on the outer surface of described magnetic conductive part, lower gasket or lower shell fragment, be provided with the insulating barrier that forms by chemical treatment or surface-coated.
6. modified model micro-driving motor according to claim 4, is characterized in that: be provided with insulation cushion lamella or insulating film layer between described magnetic conductive part and lower shell fragment and between described lower gasket and lower shell fragment.
7. modified model micro-driving motor according to claim 1 is characterized in that: the inside edge of described magnetite assembly is positioned on the magnetic conduction body along the projection of direction from the top down.
8. 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 |
|---|---|---|---|
| CN 201220509917 CN202931162U (en) | 2012-09-29 | 2012-09-29 | Improved mini driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509917 CN202931162U (en) | 2012-09-29 | 2012-09-29 | Improved mini driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931162U true CN202931162U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509917 Withdrawn - After Issue CN202931162U (en) | 2012-09-29 | 2012-09-29 | Improved mini driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001442A (en) * | 2012-09-29 | 2013-03-27 | 苏州贝腾特电子科技有限公司 | Modified miniature driving motor |
-
2012
- 2012-09-29 CN CN 201220509917 patent/CN202931162U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001442A (en) * | 2012-09-29 | 2013-03-27 | 苏州贝腾特电子科技有限公司 | Modified miniature driving motor |
| CN103001442B (en) * | 2012-09-29 | 2015-10-21 | 深圳市光控数码光电有限公司 | Modified model micro-driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN GUANGKONG DIGITAL PHOTOELECTRIC CO., LTD. Free format text: FORMER OWNER: SUZHOU BAITENGTE TECHNOLOGY CO., LTD. Effective date: 20140604 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xia Taihong Inventor after: Liu Ping Inventor before: Hu Xiaoqing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HU XIAOQING TO: XIA TAIHONG LIU PING Free format text: CORRECT: ADDRESS; FROM: 215026 SUZHOU, JIANGSU PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140604 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 Patentee after: SHENZHEN TOPVCM CO., LTD. Address before: 215026, Jiangsu, Suzhou Industrial Park, South Cross bumper harvest Plaza, 1, 809 Patentee before: Suzhou Beitengte Electronic Technology Co., Ltd. |
|
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xia Taihong Inventor after: Peng Quanbin Inventor before: Xia Taihong Inventor before: Liu Ping |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIA TAIHONG LIU PING TO: XIA TAIHONG PENG QUANBIN |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |