CN103001443B - Micro-driving motor - Google Patents
Micro-driving motor Download PDFInfo
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- CN103001443B CN103001443B CN201210374949.9A CN201210374949A CN103001443B CN 103001443 B CN103001443 B CN 103001443B CN 201210374949 A CN201210374949 A CN 201210374949A CN 103001443 B CN103001443 B CN 103001443B
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- micro
- driving motor
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- support
- spring sheet
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Abstract
The invention discloses a kind of micro-driving motor, comprise upper cover, Upper gasket, upper spring sheet, carrier, magnetite assembly, coil block, lower spring assembly, locating support and base; Described locating support comprises the plate-like body that center is provided with open-work and the multiple support rims given prominence to from plate-like body, and each support rim is positioned at the same side of plate-like body; Described plate-like body is fixed on the crimping of the outside of twice shell fragments on base, and each support rim top is pressed on upper spring sheet outer ring.Spacing between the present invention can effectively control outside upper spring sheet outer ring and lower shell fragment, thus improve Linear Driving effect.
Description
Technical field
The invention belongs to micromachine structure-design technique field, be specifically related to a kind of micro-driving motor.
Background technology
Micro-camera device has been widely used on mobile phone and notebook computer, and micro-driving motor (being also lens drive motors) wherein also does 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 assembly and base.Traditional upper cover adopts permeability magnetic material to make, and the sidewall comprising roof and be connected with roof, described roof center is provided with loophole.Upper spring sheet comprises the silk spring of outer ring, inner ring and connection outer ring, inner ring; The outer ring splicing of upper spring sheet is fixed on Upper gasket diapire, and inner ring splicing is fixed on carrier top.Described lower spring assembly comprises two lower shell fragments insulated from each other, and each lower shell fragment comprises the silk spring of inner edge, outside and connection inner edge and outside; Lower gasket is fixed on the crimping of the outside of twice shell fragments on insulator foot, and the inner edge splicing of lower shell fragment is fixed in carrier base.In use, need at the built-in lens subassembly of its carrier, and namely its application target is in certain distance, Linear Driving carrier and lens subassembly move back and forth this kind of micro-driving motor.Described carrier and lens subassembly are for this kind of micro-driving motor, heavier-weight, a larger gravity can be produced, in order to offset this gravity, in order to avoid affect Linear Driving effect, needing when assembly, allowing upper spring sheet and lower shell fragment produce one for offsetting the internal stress of described carrier and lens generation gravity.Concrete mode is: adopt the carrier that shape and size are suitable, after fixing upper spring sheet and lower shell fragment assembly, make upper spring sheet and lower shell fragment produce an elastic deformation, the gravity that the elastic force produced produces for offset carrier and lens.
The difficult point that this mode is brought is: in order to ensure elastically-deformable consistency, needs the spacing between strict control outside upper spring sheet outer ring and lower shell fragment, 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 the machining accuracy ensureing carrier, namely can be easy to control the spacing between upper spring sheet inner ring and lower shell fragment inner edge; But fixing outside upper spring sheet outer ring and lower shell fragment is then be separately fixed on different parts, and the thicker part between both is magnetite assembly, but the machining accuracy of magnetite assembly self is lower, and error is comparatively large, 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 limits by upper cover precision and fixed form; Be fixed on base by lower gasket crimping outside lower shell fragment, its installation site limits by base precision and fixed form; Final upper cover glueds joint again and is fixed on base, so the spacing between being difficult to accurately to ensure outside spring leaf outer ring and lower shell fragment, also be namely difficult to the gravity of the lucky offset carrier of elastic deformation and the lens generation ensureing that upper spring sheet and lower shell fragment produce, thus affect Linear Driving effect.
In addition, in traditional product, in magnetite assembly, each magnetite is fixedly gluedd joint by the outer wall of its adjacent upper cover sidewall to be fixed on upper cover sidewall, and its bonding effect is not learnt, so cannot ensure its glue-joint strength by directly observing; Thus causing in fall-down test, magnetite is owing to being subject to violent impulsive force, once its glue-joint strength is slightly poor, will loosens and even come off, cause defective products, so its structure also exists need improvements badly from upper cover sidewall.
Summary of the invention
The micro-driving motor of spacing between the object of this invention is to provide outside a kind of effective control upper spring sheet outer ring and lower shell fragment.
The technical scheme realizing the object of the invention is: a kind of micro-driving motor, comprises upper cover, Upper gasket, upper spring sheet, carrier, magnetite assembly, coil block, lower spring assembly and base; The sidewall that described upper cover comprises roof and is connected with roof, described roof center is provided with loophole; Described upper spring sheet comprises outer ring, inner ring and connects the silk spring of outer ring and inner ring; The outer ring of upper spring sheet is fixed on Upper gasket diapire, and inner ring is fixed on carrier top; Described lower spring assembly comprises two lower shell fragments insulated from each other, and each lower shell fragment comprises inner edge, outside and connects the silk spring of inner edge and outside; The inner edge of described lower shell fragment is fixed in carrier base; Its design feature is: also comprise locating support, and described locating support comprises the plate-like body that center is provided with open-work and the multiple support rims given prominence to from plate-like body, and each support rim is positioned at the same side of plate-like body; Described plate-like body is fixed on the crimping of the outside of twice shell fragments on base, and each support rim top is pressed on upper spring sheet outer ring.
In technique scheme, described magnetite assembly comprises multiple magnetite leaving gap, and each support rim is arranged in the gap of adjacent two magnetites.
In technique scheme, each support rim is being connected to along the two side ends in coil block circumference on two adjacent magnetites.
In technique scheme, the basic configuration of described plate-like body is the frame-shaped with at least two flanging; Described each support rim is positioned at the center of a corresponding flanging or the intersection of adjacent two flanging.
In technique scheme, this locating support adopts ambroin or metal material to make.
In technique scheme, when locating support adopts metal material to make, the plate-like body outer surface of locating support has the insulating barrier that one deck is formed by chemical treatment or coating processes.
The present invention has following beneficial effect:
(1) the present invention accurately located outside upper spring sheet outer ring and lower shell fragment by the support rim on locating support between spacing, as long as ensure that the machining accuracy of locating support, spacing between can effectively controlling outside upper spring sheet outer ring and lower shell fragment, thus effectively ensure the lucky offset carrier of elastic deformation that upper spring sheet and lower shell fragment produce and the gravity that lens produce, and then improve Linear Driving effect.
(2), in the present invention, each support rim is being connected to along the two side ends in coil block circumference on two adjacent magnetites.This structure in coil block circumference, can limit the position of each magnetite, increases the shock resistance of magnetite assembly, is conducive to the percent of pass improving fall-down test.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of micro-driving motor of the present invention;
Fig. 2 is a kind of cutaway view of micro-driving motor shown in Fig. 1;
Fig. 3 is a kind of explosive view of micro-driving motor shown in Fig. 1;
Fig. 4 is a kind of explosive view of micro-driving motor the second structure of the present invention;
Fig. 5 is a kind of cutaway view of the third structure of micro-driving motor of the present invention;
Fig. 6 is a kind of perspective view of locating support in micro-driving motor shown in Fig. 5.
Be labeled as shown in accompanying drawing: locating support 1, plate-like body 11, flanging 111, support rim 12, open-work (13), upper cover 21, roof 211, sidewall 212, loophole 213, Upper gasket 22, upper spring sheet 23, outer ring 231, inner ring 232, silk spring 233, carrier 24, magnetite assembly 25, coil block 26, lower spring assembly 27, lower shell fragment 271, inner edge 272, outside 273, silk spring 274, base 28, centre bore 281.
Embodiment
(
(embodiment 1, micro-driving motor)
Fig. 1 to Fig. 3 shows the first embodiment of micro-driving motor of the present invention, and wherein Fig. 1 is a kind of perspective view of the first structure of micro-driving motor of the present invention; Fig. 2 is a kind of cutaway view of micro-driving motor shown in Fig. 1; Fig. 3 is a kind of explosive view of micro-driving motor shown in Fig. 1.
The present embodiment is a kind of micro-driving motor for Linear Driving micro lens, see shown in Fig. 1 to Fig. 3, comprise locating support 1, upper cover 21, Upper gasket 22, upper spring sheet 23, carrier 24, magnetite assembly 25, coil block 26, lower spring assembly 27 and base 28.Described locating support 1 adopts ambroin to make, and described upper cover 21 adopts permeability magnetic material to make.
The sidewall 212 that described upper cover 21 comprises roof 211 and is connected with roof 211, described roof 211 center is provided with loophole 213.
Described upper spring sheet 23 comprises outer ring 231, inner ring 232 and connects the silk spring 233 of outer ring 231 and inner ring 232; The outer ring 231 of upper spring sheet 23 is fixed on Upper gasket 22 diapire, and inner ring 232 is fixed on carrier 24 top.
Described magnetite assembly 25 comprises multiple magnetite 251 leaving gap, and the basic configuration of each magnetite 251 is isosceles trapezoids, and the upper cover due to the present embodiment is cuboid, and coil block profile is octangle, so each magnetite is positioned at four interior angle places of upper cover cavity; Each support rim 12 is arranged in the gap of adjacent two magnetites 251.Described lower spring assembly 27 comprises two lower shell fragments 271 insulated from each other, and each lower shell fragment 271 comprises inner edge 272, outside 273 and connects the silk spring 274 of inner edge 272 and outside 273; The inner edge 272 of described lower shell fragment 271 is fixed on bottom carrier 24.
Described locating support (1) comprises the plate-like body (11) that center is provided with open-work (13) and the multiple support rims (12) given prominence to from plate-like body (11), and each support rim (12) is positioned at the same side of plate-like body (11); Described plate-like body (11) is fixed on the crimping of the outside (273) of twice shell fragments (271) on base (28), and each support rim (12) top is pressed on the basal surface of upper spring sheet outer ring (231).
In the present embodiment, the basic configuration of described plate-like body 11 is that to have four flanging 111 rectangular box-like, and in the present embodiment, the basic configuration of each flanging 111 is rectilinear plate; Described each support rim 12 is positioned at the center of a corresponding flanging 111.
In the present embodiment, described base 28 is the tabular pedestals made with permeability magnetic material, and the center is provided with centre bore 281.This base 28 is fixed in the cavity of upper cover 21 by welding or bonding mode; The plate-like body 11 of described locating support 1 is fixed on the crimping of the outside 273 of lower shell fragment on base 28 upper surface.
Each magnetite 251 forms the magnetic circuit through coil block 26 close to a side of coil block 26 and upper cover 21 roof.
Each magnetite 251 is close to the magnetic circuit also formed between a side of coil block 26 and this base 28 through coil block 26.When coil block 26 moves back and forth along with carrier, this structure contributes to making coil block to be in a comparatively constant magnetic field, thus improves Linear Driving effect.
It is to be noted, because base 28 adopts permeability magnetic material to make, material therefor generally has conductivity, and it is close to twice shell fragments 271 and arranges, in order to prevent twice shell fragment short circuits, so need to arrange an insulating barrier between each lower shell fragment 271 basal surface and base 28 upper surface, this insulating barrier can be made on lower shell fragment or base 28 outer surface by chemical treatment or coating processes.
(embodiment 2, micro-driving motor)
Fig. 4 is a kind of explosive view of micro-driving motor the second structure of the present invention, shows the second embodiment of micro-driving motor of the present invention.
The present embodiment is a kind of micro-driving motor adopting above-described embodiment 1 to make, substantially the same manner as Example 4, difference is: described magnetite assembly 25 comprises four cuboid magnetites 251, and each magnetite 251 adjoins the corresponding sidewall 212 of upper cover arranges, also namely be arranged in parallel with a corresponding sidewall 212; So in order to match with this kind of magnetite assembly, each support rim (12) in described locating support 1 is positioned at the intersection of adjacent two flanging (111), is in the gap of adjacent two magnetites 251 to make it.
(embodiment 3, micro-driving motor)
Fig. 5 and Fig. 6 shows the third embodiment of micro-driving motor of the present invention, and wherein Fig. 5 is a kind of cutaway view of the third structure of micro-driving motor of the present invention; Fig. 6 is a kind of perspective view of locating support in micro-driving motor shown in Fig. 5
The present embodiment is substantially the same manner as Example 1, and difference is: described base 28 adopts ambroin to make, and has centre bore 281, and the plate-like body 11 of described locating support 1 is fixed on the crimping of the outside 273 of twice shell fragments 271 on this insulator foot 28.
(embodiment 4, micro-driving motor)
The present embodiment is substantially the same manner as Example 1, difference is: described locating support 1 adopts metal material to make, in order to prevent the short circuit of twice shell fragments 271, so need to arrange an insulating barrier between each lower shell fragment 271 upper surface and the lower surface of locating support 1 plate-like body 11, this insulating barrier can be made on lower shell fragment or plate-like body 11 outer surface by chemical treatment or coating processes.
(embodiment 5, micro-driving motor)
The present embodiment is substantially the same manner as Example 1, and difference is: each support rim 12 is being connected on two adjacent magnetites 251 along the two side ends in coil block 26 circumference.
The present embodiment in coil block circumference, can limit the position of each magnetite, increases the shock resistance of magnetite assembly, is conducive to the percent of pass improving fall-down test.
Above-described embodiment 1 to embodiment 5 accurately located outside upper spring sheet outer ring and lower shell fragment by the support rim on locating support between spacing, as long as ensure that the machining accuracy of locating support, spacing between can effectively controlling outside upper spring sheet outer ring and lower shell fragment, thus effectively ensure the lucky offset carrier of elastic deformation that upper spring sheet and lower shell fragment produce and the gravity that lens produce, and then improve Linear Driving effect.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the 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 exhaustive without the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (5)
1. a micro-driving motor, comprises upper cover (21), Upper gasket (22), upper spring sheet (23), carrier (24), magnetite assembly (25), coil block (26), lower spring assembly (27) and base (28); The sidewall (212) that described upper cover (21) comprises roof (211) and is connected with roof (211), described roof (211) center is provided with loophole (213); Described upper spring sheet (23) comprises outer ring (231), inner ring (232) and connects the silk spring (233) of outer ring (231) and inner ring (232); The outer ring (231) of upper spring sheet (23) is fixed on Upper gasket (22) diapire, and inner ring (232) is fixed on carrier (24) top; Described lower spring assembly comprises two lower shell fragments (271) insulated from each other, and each lower shell fragment (271) comprises inner edge (272), outside (273) and connects the silk spring (274) of inner edge (272) and outside (273); The inner edge (272) of described lower shell fragment (271) is fixed on carrier (24) bottom; It is characterized in that: also comprise locating support (1), described locating support (1) comprises the plate-like body (11) that center is provided with open-work (13) and the multiple support rims (12) given prominence to from plate-like body (11), and each support rim (12) is positioned at the same side of plate-like body (11); Described plate-like body (11) is fixed on the crimping of the outside (273) of twice shell fragments (271) on base (28), each support rim (12) top is pressed on upper spring sheet outer ring (231), described magnetite assembly (25) comprises multiple magnetite (251) leaving gap, and each support rim (12) is arranged in the gap of adjacent two magnetites.
2. micro-driving motor according to claim 1, is characterized in that: each support rim (12) is being connected to along the two side ends in coil block (26) circumference on two adjacent magnetites (251).
3. micro-driving motor according to claim 1, is characterized in that: the basic configuration of described plate-like body (11) is the frame-shaped with at least two flanging (111); Described each support rim (12) is positioned at the center of a corresponding flanging (111) or the intersection of adjacent two flanging (11).
4. micro-driving motor according to claim 1, is characterized in that: this locating support (1) adopts ambroin or metal material to make.
5. micro-driving motor according to claim 4, it is characterized in that: when locating support (1) adopts metal material to make, plate-like body (11) outer surface of locating support (1) has the insulating barrier that one deck is formed by chemical treatment or coating processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374949.9A CN103001443B (en) | 2012-09-29 | 2012-09-29 | Micro-driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374949.9A CN103001443B (en) | 2012-09-29 | 2012-09-29 | Micro-driving motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103001443A CN103001443A (en) | 2013-03-27 |
| CN103001443B true CN103001443B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210374949.9A Expired - Fee Related CN103001443B (en) | 2012-09-29 | 2012-09-29 | Micro-driving motor |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007086659A1 (en) * | 2006-01-24 | 2007-08-02 | Siliconfile Technologies Inc. | Voice coil module |
| CN102111056A (en) * | 2009-12-24 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
| CN202931158U (en) * | 2012-09-29 | 2013-05-08 | 苏州贝腾特电子科技有限公司 | Mini driving motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101230092B1 (en) * | 2010-05-31 | 2013-02-05 | 엘지이노텍 주식회사 | Voice coil motor |
| KR101853496B1 (en) * | 2011-02-07 | 2018-04-30 | 엘지이노텍 주식회사 | Voice coil motor |
-
2012
- 2012-09-29 CN CN201210374949.9A patent/CN103001443B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007086659A1 (en) * | 2006-01-24 | 2007-08-02 | Siliconfile Technologies Inc. | Voice coil module |
| CN102111056A (en) * | 2009-12-24 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
| CN202931158U (en) * | 2012-09-29 | 2013-05-08 | 苏州贝腾特电子科技有限公司 | Mini driving motor |
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| Publication number | Publication date |
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| CN103001443A (en) | 2013-03-27 |
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Owner name: SHENZHEN GUANGKONG DIGITAL PHOTOELECTRIC CO., LTD. Free format text: FORMER OWNER: SUZHOU BAITENGTE TECHNOLOGY CO., LTD. Effective date: 20140603 |
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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: 518019 SHENZHEN, GUANGDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: HU XIAOQING TO: XIA TAIHONG LIU PING |
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Effective date of registration: 20140603 Address after: No. 20 Silicon Valley Power New Material Industrial Park A5 building 518019 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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| C53 | Correction of patent for 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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Granted publication date: 20151021 Termination date: 20160929 |