CN203911716U - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
- Publication number
- CN203911716U CN203911716U CN201420321295.8U CN201420321295U CN203911716U CN 203911716 U CN203911716 U CN 203911716U CN 201420321295 U CN201420321295 U CN 201420321295U CN 203911716 U CN203911716 U CN 203911716U
- Authority
- CN
- China
- Prior art keywords
- shell fragment
- carrier
- voice coil
- coil motor
- upper shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000013016 damping Methods 0.000 claims abstract description 45
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 239000012634 fragment Substances 0.000 claims description 68
- 239000003292 glue Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 8
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model discloses a voice coil motor, and relates to the technical field of lens driving equipment. The voice coil motor comprises a carrier which is used for fixing a lens. A coil is wound on the carrier. A magnet is arranged around the periphery of the coil in a surrounding way. The upper and lower ends of the carrier are respectively provided with an upper elastic sheet and a lower elastic sheet. One side, which is away from the carrier, of the upper elastic sheet is provided with a pressing plate. One side, which is close to and/or away from the carrier, of the upper elastic sheet is provided with a vibration-damping body. A technical problem in the prior art that the voice coil motor is long in focusing time is solved. Vibration attenuation of the voice coil motor is rapid so that focusing can be realized within a relatively short period of time, and thus the voice coil motor is particularly suitable for super-close range photographing.
Description
Technical field
The utility model relates to lens actuation apparatus technical field, particularly a kind of voice coil motor.
Background technology
Voice coil motor is a kind of device that converts electrical energy into mechanical energy, and realizes the motion of linear pattern and limited pivot angle.Voice coil motor be mainly used in little stroke, at a high speed, High acceleration motion, be applicable to narrow space, modal application is exactly for realizing the automatic focusing function in mobile phone camera.
The existing voice coil motor being applied in mobile phone comprises the carrier for fixed lens, the coil that has been fastened on carrier, and the periphery of coil is provided with fixed support, is fixed with magnet on fixed support, between magnet and coil, leaves gap; Two ends at carrier are respectively fixed with a shell fragment, setting camera lens is upper end for gathering one end of scenery, therefore be fixed on shell fragment on the shell fragment called after on this end carrier, be fixed on shell fragment under the shell fragment called after of the carrier other end, the opposite side of upper shell fragment is fixed with pressing plate, and shell fragment and pressing plate are used for limiting the position of carrier movement.The operation principle of this voice coil motor is to utilize from the interaction between magnetic pole in the magnetic field of permanent magnet and hot-wire coil generation to produce regular motion, and utilize the elastic force of upper shell fragment and lower shell fragment to come push-and-pull, in check electric current to carry index glass head by carrier, camera lens can be moved towards limiting direction, now just can realize distance element and move whole camera lens, change focal length, realize the object of sharp image.
Current this voice coil motor is applying after larger electric current suddenly to coil, the stressed accelerated motion of coil, meeting retarded motion while running into shell fragment and lower shell fragment, now coil is actual is in vibration, camera lens is along with coil is also in vibration, and this just need to expend the longer time and just can reach balance, and vibration attenuation must be slower, be unfavorable for focusing, affect final image quality.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of voice coil motor, and this voice coil motor vibration attenuation is fast, can realize focusing within a short period of time, is particularly useful for super close distance and takes.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of voice coil motor, comprise the carrier for fixed lens, on described carrier, be wound with coil, the peripheral ring of described coil is arranged with magnet, the two ends up and down of described carrier are respectively equipped with shell fragment and lower shell fragment, described upper shell fragment is provided with pressing plate away from a side of described carrier, and described upper shell fragment is equipped with damping body near a side of described carrier and/or described upper shell fragment away from a side of described carrier.
As a kind of execution mode, described damping body is arranged on the fixing point surrounding that described upper shell fragment and described carrier are in contact with one another.
As another kind of execution mode, described damping body is arranged on the end face of one end that described carrier contacts with described upper shell fragment.
As another execution mode, described damping body is arranged on the surface of described pressing plate near described upper shell fragment one side.
As another execution mode, on the end face of one end that described carrier and described upper shell fragment fix and on the surface of described pressing plate near described upper shell fragment one side, be equipped with described damping body.
As another execution mode, described upper shell fragment and described carrier are arranged with a soft protective jacket jointly near the end of described upper shell fragment.
Wherein, the loop configuration of described upper shell fragment for being surrounded by an elastic sheet body.
Wherein, the described upper shell fragment loop configuration that at least two elastic sheet body surround jointly of serving as reasons.
Wherein, described damping body is damping glue.
Adopted after technique scheme, the beneficial effects of the utility model are:
Because the upper shell fragment of the utility model voice coil motor is equipped with damping body near a side of carrier and/or away from a side of carrier (near pressing plate).During super low coverage focusing, coil passes to suddenly larger electric current, coil band mobile carrier and camera lens are done and are vibrated in magnetic field, and when carrier and upper shell fragment or upper shell fragment and the mutual stressed action of pressing plate, damping body can absorb the part impulse force of carrier, play the effect of buffering and vibration damping, accelerate significantly the speed of vibration attenuation, shortened the time that focal length reaches balance point, promoted significantly focusing effect, especially the focusing that super close distance is taken, focusing effect is more obvious.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model voice coil motor embodiment mono-;
Fig. 2 is the structural representation of the utility model voice coil motor embodiment bis-;
Fig. 3 is the structural representation of the utility model voice coil motor embodiment tri-;
Fig. 4 is the structural representation of the utility model voice coil motor embodiment tetra-;
Fig. 5 is the structural representation of the utility model voice coil motor embodiment five;
Fig. 6 is a kind of structural representation of upper shell fragment in the utility model voice coil motor;
Fig. 7 is the another kind of structural representation of upper shell fragment in the utility model voice coil motor;
Wherein: 10, fixed support, 20, base, 30, lower shell fragment, 32, upper shell fragment, 32a, elastic sheet body, 32b, elastic sheet body, 34, pad, 40, coil, 50, carrier, 60, camera lens, 70, pressing plate, 80a, damping body, 80b, damping body, 80c, damping body, 90, protective jacket.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.
Embodiment mono-:
As shown in Figure 1, a kind of voice coil motor, comprises base 20 and shell (not shown), contains the magnet (not shown) being fixed on fixed support 10 in shell, in the loop configuration that magnet and fixed support 10 surround, is provided with moving cell.Moving cell comprises that the outside of carrier 50 is wound with coil 40, between coil 40 and magnet, is provided with movement clearance for accommodating the carrier 50 of fixed lens 60.One end that setting carrier 50 gathers scenery with respect to camera lens 60 is upper end, the other end is lower end, the upper end of carrier 50 is fixed with shell fragment 32, an other side of upper shell fragment 32 is fixed with pressing plate 70, the lower end of carrier 50 is fixed with lower shell fragment 30, lower shell fragment 30 is fixed on base 20, and upper shell fragment 32, lower shell fragment 30 and pressing plate 70 are for limiting the position of carrier 50 motions.
As shown in Figure 1, upper shell fragment 32 is fixing by least two symmetrical fixing points and carrier 50, surrounding at fixing point is provided with damping body 80a, damping body 80a is arranged at least two symmetrical fixing point surroundings, also surrounding that can each fixing point all arranges damping body 80a, and damping body 80a is the damping glue that is coated in fixing point surrounding.While passing to larger electric current in coil 40, coil 40 band mobile carriers 50 and camera lens 60 are done straight-line oscillation in magnetic field, when carrier 50 and upper shell fragment 32 collide, damping body 80a can absorb the part impulse force of carrier 50, plays the effect of buffering and vibration damping, has accelerated significantly the speed of vibration attenuation, shortened time that focal length reaches balance point, promoted significantly focusing effect, the focusing of especially super close distance being taken, focusing effect is more obvious.
As shown in Figure 1, the periphery of upper shell fragment 32 is provided with pad 34, and pad 34 is used for protecting shell fragment 32, can prevent that shell fragment 32 from deforming, and has effectively avoided causing the bad of image blur because of upper shell fragment 32 distortion.
Upper shell fragment 32 is loop configuration, and centre is provided with loophole.It can adopt integrative-structure, also can adopt Split type structure: integrative-structure as shown in Figure 6, upper shell fragment 32 consists of an elastic sheet body 32a, elastic sheet body 32a can be fixing by symmetrical two fixing points and carrier 50 (as shown in Figure 1), also can fix by being four fixing points and the carrier 50 of cross distribution.As shown in Figure 7, upper shell fragment 32 consists of two elastic sheet body 32b Split type structure jointly, and each elastic sheet body 32b can be fixing by three fixing points and the carrier 50 of distribution triangular in shape.Certainly, according to the structure of specification requirement and shell fragment or size, can also adopt three or more elastic sheet body jointly to form upper shell fragment, in order to save space, its concrete structure does not just describe in detail one by one at this.
Embodiment bis-:
As shown in Figure 2, present embodiment and embodiment mono-are basic identical, and its difference is:
Damping body 80b is arranged on carrier 50 and fixes on the end face of one end with upper shell fragment 32, and it can play the effect of buffer shock-absorbing equally.
Embodiment tri-:
As shown in Figure 3, present embodiment and embodiment mono-are basic identical, and its difference is;
Damping body 80c is arranged on the surface of pressing plate 70 near upper shell fragment 32 1 sides, is with mobile carriers 50 and camera lens 60 moves upward when coil 40, and when upper shell fragment 32 collides with pressing plate 70, damping body 80c can play the effect of buffer shock-absorbing equally.
Embodiment tetra-:
As shown in Figure 4, present embodiment and embodiment bis-are basic identical, and its difference is:
Not only on carrier 50 end faces, be provided with damping body 80b, also at the lower surface of pressing plate 70, be provided with damping body 80c simultaneously.It is better that present embodiment and above-mentioned three embodiment compare effectiveness in vibration suppression, but its manufacture craft is slightly aobvious complicated, need to all apply damping glue at carrier 50 end faces and pressing plate 70 lower surfaces.
Embodiment five:
As shown in Figure 5, present embodiment and embodiment mono-are basic identical, and its difference is:
Upper shell fragment 32 and carrier 50 are arranged with a soft protective jacket 90 jointly near the end of upper shell fragment 32, protective jacket 90 is rubber case or other soft and elastic material, and damping glue is excessive to coil 40 in the course of the work for preventing voice coil motor for protective jacket 90.
In present embodiment, only provided the diagram that protective jacket 90 is applied to embodiment mono-, but this technical scheme that can not illustrate that present embodiment is provided with protective jacket 90 is only applicable to embodiment mono-, it is equally applicable in embodiment bis-, embodiment tri-and embodiment tetra-excessive to coil for preventing damping glue, because diagram and Fig. 5 of being applied in embodiment bis-, embodiment tri-and embodiment tetra-are basically identical, therefore be applied to the omission that is illustrated in the drawings of embodiment bis-to embodiment tetra-.
In the utility model, damping body employing damping glue is because damping glue has good adhesive force, and its tack is lasting, can not come off because of reasons such as vibration, variations in temperature; And damping glue has higher composite damping factor, can play the effect of quick vibration damping, be preferred version of the present utility model.The damping material that can be used as in actual applications damping body is a lot, as rubber, foam, foam etc., so long as structure and specification requirement meet all can be used in, plays buffer shock-absorbing in the utility model.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection range of the present utility model.
Claims (10)
1. voice coil motor, comprise the carrier for fixed lens, on described carrier, be wound with coil, the peripheral ring of described coil is arranged with magnet, the two ends up and down of described carrier are respectively equipped with shell fragment and lower shell fragment, described upper shell fragment is provided with pressing plate away from a side of described carrier, it is characterized in that, described upper shell fragment is equipped with damping body near a side of described carrier and/or described upper shell fragment away from a side of described carrier.
2. voice coil motor according to claim 1, is characterized in that, described damping body is arranged on the fixing point surrounding that described upper shell fragment and described carrier are in contact with one another.
3. voice coil motor according to claim 2, is characterized in that, described damping body is arranged on the surrounding of at least two symmetrical described fixing points.
4. voice coil motor according to claim 1, is characterized in that, described damping body is arranged on the end face of one end that described carrier contacts with described upper shell fragment.
5. voice coil motor according to claim 1, is characterized in that, described damping body is arranged on the surface of described pressing plate near described upper shell fragment one side.
6. voice coil motor according to claim 1, is characterized in that, on the end face of one end that described carrier and described upper shell fragment fix and on the surface of described pressing plate near described upper shell fragment one side, is equipped with described damping body.
7. according to the voice coil motor described in claim 2 to 6 any one claim, it is characterized in that, described upper shell fragment and described carrier are arranged with a soft protective jacket jointly near the end of described upper shell fragment.
8. voice coil motor according to claim 1, is characterized in that, the loop configuration of described upper shell fragment for being surrounded by an elastic sheet body.
9. voice coil motor according to claim 1, is characterized in that, the described upper shell fragment loop configuration that at least two elastic sheet body surround jointly of serving as reasons.
10. voice coil motor according to claim 1, is characterized in that, described damping body is damping glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321295.8U CN203911716U (en) | 2014-06-16 | 2014-06-16 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321295.8U CN203911716U (en) | 2014-06-16 | 2014-06-16 | Voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911716U true CN203911716U (en) | 2014-10-29 |
Family
ID=51785962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420321295.8U Expired - Lifetime CN203911716U (en) | 2014-06-16 | 2014-06-16 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911716U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847644A (en) * | 2016-04-29 | 2016-08-10 | 上海与德通讯技术有限公司 | Focusing motor of camera |
| CN108072957A (en) * | 2016-11-14 | 2018-05-25 | 台湾东电化股份有限公司 | Optical drive mechanism |
| CN108072961A (en) * | 2016-11-14 | 2018-05-25 | 台湾东电化股份有限公司 | Optical module driving mechanism |
| WO2020228727A1 (en) * | 2019-05-14 | 2020-11-19 | 新思考电机有限公司 | Lens driving apparatus, camera module, and electronic device |
| CN112637455A (en) * | 2020-12-08 | 2021-04-09 | Oppo广东移动通信有限公司 | Camera motor, camera and electronic device |
| CN115473977A (en) * | 2021-06-11 | 2022-12-13 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembling method thereof |
| CN115484359A (en) * | 2021-06-15 | 2022-12-16 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembling method thereof |
| CN115484362A (en) * | 2021-06-15 | 2022-12-16 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembling method thereof |
-
2014
- 2014-06-16 CN CN201420321295.8U patent/CN203911716U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847644B (en) * | 2016-04-29 | 2019-06-14 | 上海与德通讯技术有限公司 | A kind of camera focusing motor |
| CN105847644A (en) * | 2016-04-29 | 2016-08-10 | 上海与德通讯技术有限公司 | Focusing motor of camera |
| CN108072960B (en) * | 2016-11-14 | 2022-05-24 | 台湾东电化股份有限公司 | Optical drive mechanism |
| CN108072957A (en) * | 2016-11-14 | 2018-05-25 | 台湾东电化股份有限公司 | Optical drive mechanism |
| CN108072960A (en) * | 2016-11-14 | 2018-05-25 | 台湾东电化股份有限公司 | Optical drive mechanism |
| CN108072961A (en) * | 2016-11-14 | 2018-05-25 | 台湾东电化股份有限公司 | Optical module driving mechanism |
| CN108072957B (en) * | 2016-11-14 | 2022-05-24 | 台湾东电化股份有限公司 | Optical drive mechanism |
| WO2020228727A1 (en) * | 2019-05-14 | 2020-11-19 | 新思考电机有限公司 | Lens driving apparatus, camera module, and electronic device |
| CN112637455A (en) * | 2020-12-08 | 2021-04-09 | Oppo广东移动通信有限公司 | Camera motor, camera and electronic device |
| CN115473977A (en) * | 2021-06-11 | 2022-12-13 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembling method thereof |
| CN115473977B (en) * | 2021-06-11 | 2023-12-05 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembly method thereof |
| CN115484359A (en) * | 2021-06-15 | 2022-12-16 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembling method thereof |
| CN115484362A (en) * | 2021-06-15 | 2022-12-16 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembling method thereof |
| CN115484359B (en) * | 2021-06-15 | 2024-04-16 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembly method thereof |
| CN115484362B (en) * | 2021-06-15 | 2024-10-01 | 宁波舜宇光电信息有限公司 | Lens assembly, camera module and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |