CN204231163U - The dust-proof yoke of a kind of voice coil motor - Google Patents
The dust-proof yoke of a kind of voice coil motor Download PDFInfo
- Publication number
- CN204231163U CN204231163U CN201420654018.9U CN201420654018U CN204231163U CN 204231163 U CN204231163 U CN 204231163U CN 201420654018 U CN201420654018 U CN 201420654018U CN 204231163 U CN204231163 U CN 204231163U
- Authority
- CN
- China
- Prior art keywords
- yoke
- dustproof
- upper magnet
- dustproof groove
- dust
- 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 - Fee Related
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model discloses the dust-proof yoke of a kind of voice coil motor, comprises upper magnet yoke, the lower yoke that can engage formation one yoke chamber, and the top of described upper magnet yoke, the bottom of lower yoke are provided with coaxial light hole; The joint of described upper magnet yoke, lower yoke is provided with dirt-proof boot, and described dirt-proof boot comprises the upper dustproof groove around upper magnet yoke side and the lower dustproof groove around lower yoke side, and Open Side Down for described upper dustproof groove; Described lower dustproof groove opening upwards, upper dustproof groove connects with lower dustproof groove the airtight dustproof room of formation one, is provided with rubber layer in dustproof room.The utility model arranges dustproof groove and lower dustproof groove at upper magnet yoke and lower yoke, and the two joint forms an airtight dustproof room at the joint of upper magnet yoke and lower yoke just.Dustproof room can block the gap of upper magnet yoke, lower yoke joint, and blocks dust enters voice coil motor from this gap, and then stops dust and enter picture pick-up device inside by voice coil motor and be infected with image perception element.
Description
Technical field
The utility model relates to a kind of voice coil motor yoke, is specifically related to the dust-proof yoke of a kind of voice coil motor.
Background technology
Existing electronic image pickup apparatus is very responsive to dust, and dust is infected with behind the image induction element surface of picture pick-up device, by serious video imaging quality.Dust enters electronic image pickup apparatus inside by voice coil motor usually.Voice coil motor is conventional electronic image pickup apparatus focusing structural, and it is made up of yoke wrap lens, coil, magnet and resilient suspension usually.Yoke is divided into upper magnet yoke and lower yoke (or claiming pedestal), and upper magnet yoke engages the yoke chamber that said elements is held in formation one with lower yoke, and upper lower yoke is provided with coaxial light hole.When practical application, the dust in environment easily from the joint gap of upper lower yoke, light hole enters the yoke chamber of voice coil motor, and enters image induction element further by the light hole of lower yoke.Therefore, a kind of voice coil motor that dust can be prevented to be infected with image induction element is needed badly.
Utility model content
In view of this, the utility model discloses a kind of voice coil motor yoke that can effectively prevent dust to be infected with image induction element.
The purpose of this utility model is achieved through the following technical solutions:
The dust-proof yoke of a kind of voice coil motor, comprise upper magnet yoke, the lower yoke that can engage formation one yoke chamber, the top of described upper magnet yoke, the bottom of lower yoke are provided with coaxial light hole; The joint of described upper magnet yoke, lower yoke is provided with dirt-proof boot, and described dirt-proof boot comprises the upper dustproof groove around upper magnet yoke side and the lower dustproof groove around lower yoke side, and Open Side Down for described upper dustproof groove; Described lower dustproof groove opening upwards, upper dustproof groove connects with lower dustproof groove the airtight dustproof room of formation one, is provided with rubber layer in dustproof room.
The utility model arranges dustproof groove and lower dustproof groove at upper magnet yoke and lower yoke, and the two joint forms an airtight dustproof room at the joint of upper magnet yoke and lower yoke just.Dustproof room can block the gap of upper magnet yoke, lower yoke joint, and blocks dust enters voice coil motor from this gap, and then stops dust and enter picture pick-up device inside by voice coil motor and be infected with image perception element.The utility model further arranges rubber layer rubber layer in dustproof room can intercept the gap of dustproof room joint and the gap of yoke joint, strengthens dust-proof effect further.Except rubber layer, in dustproof room, also can fill any one elastomeric material.
The dust proof tube coaxial with light hole is provided with, the setting layer that dust proof tube comprises tubular and the electrostatic precipitation layer covered inside setting layer outside the light hole of described upper magnet yoke.
The material that setting layer can select any one to have rigidity is made, and its effect is fixing electrostatic precipitation layer.The material that described electrostatic precipitation layer can select any one easily to produce electrostatic is made, as nylon, Merlon, rubber.The electrostatic of electrostatic precipitation layer can adsorb the dust outside upper magnet yoke light hole, prevents dust from entering voice coil motor by this light hole.
Described electrostatic precipitation layer surface is provided with spiral groove.
Further, the utility model arranges spiral groove on the surface of electrostatic precipitation layer, to increase the surface area of electrostatic precipitation layer, strengthens the electric field strength that electrostatic precipitation layer is formed, and improves electrostatic precipitation layer to the adsorption capacity of dust.
The outside of described upper dustproof groove and lower dustproof groove is provided with multiple lower cancave cambered surface.
The setting of lower cancave cambered surface can make dustproof groove outside air movement disorder, can effectively prevent dust to be attached to yoke surfaces, reduces the probability that dust enters voice coil motor.
The light hole edge of described lower yoke is provided with electrostatic precipitation circle, and the surface of described electrostatic precipitation circle is provided with the annular groove concentric with light hole.
The material that described electrostatic precipitation circle can select any one can produce electrostatic is made, as rubber.Annular groove can increase the surface area of electrostatic precipitation circle, improves its adsorption efficiency to dust.Arranging of electrostatic precipitation circle can as last dust-proof barrier together, and the dust of removing voice coil motor inside, the dust in obstruct voice coil motor contacts with image induction element further by the light hole of lower yoke.
The utility model, relative to prior art, has following beneficial effect:
The utility model arranges dustproof groove and lower dustproof groove at upper magnet yoke and lower yoke, and the two joint forms an airtight dustproof room at the joint of upper magnet yoke and lower yoke just.Dustproof room can block the gap of upper magnet yoke, lower yoke joint, and blocks dust enters voice coil motor from this gap, and then stops dust and enter picture pick-up device inside by voice coil motor and be infected with image perception element.Dust proof tube of the present utility model, electrostatic precipitation circle and dirt-proof boot can form the barrier that multiple tracks intercepts dust, effectively can intercept the murky inside being entered picture pick-up device by voice coil motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cutaway view of the present utility model.
Fig. 3 is the partial enlarged drawing of the utility model dirt-proof boot.
Fig. 4 is the downward projection figure of the utility model dust proof tube.
Fig. 5 is the partial enlarged drawing of the utility model electrostatic precipitation circle.
Embodiment
The utility model to be described in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that:
Embodiment 1
The present embodiment provides a kind of voice coil motor dust-proof yoke, and comprise upper magnet yoke 11, the lower yoke 12 that can engage formation one yoke chamber as shown in Figure 1 and Figure 2, the top of described upper magnet yoke, the bottom of lower yoke are provided with coaxial light hole 13 and light hole 14; As Fig. 3, the joint of described upper magnet yoke, lower yoke is provided with dirt-proof boot 2, and described dirt-proof boot comprises the upper dustproof groove 21 around upper magnet yoke side and the lower dustproof groove 22 around lower yoke side, and Open Side Down for described upper dustproof groove; Described lower dustproof groove opening upwards, upper dustproof groove connects with lower dustproof groove the airtight dustproof room of formation one, is provided with rubber layer 23 in dustproof room.
The dust proof tube 3 coaxial with it is provided with, the setting layer 31 comprising tubular as Fig. 4 dust proof tube and the electrostatic precipitation layer 32 covered inside setting layer outside the light hole of described upper magnet yoke.In the present embodiment, described electrostatic precipitation layer is rubber layer.The height of dust proof tube is 1.5 times of light hole diameter.
Described electrostatic precipitation layer surface is provided with spiral groove 33.
The outside of described upper dustproof groove and lower dustproof groove is provided with the array of lower cancave cambered surface 24.
The light hole edge of described lower yoke is provided with electrostatic precipitation circle 4, and the surface of electrostatic precipitation circle is provided with the annular groove 41 concentric with light hole as described in Figure 5.In the present embodiment, described electrostatic precipitation circle is the rubber ring isometrical and concentric with light hole.
Be more than wherein specific implementation of the present utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (5)
1. the dust-proof yoke of voice coil motor, comprises upper magnet yoke, the lower yoke that can engage formation one yoke chamber, it is characterized in that: the top of described upper magnet yoke, the bottom of lower yoke are provided with coaxial light hole; The joint of described upper magnet yoke, lower yoke is provided with dirt-proof boot, and described dirt-proof boot comprises the upper dustproof groove around upper magnet yoke side and the lower dustproof groove around lower yoke side, and Open Side Down for described upper dustproof groove; Described lower dustproof groove opening upwards, upper dustproof groove connects with lower dustproof groove the airtight dustproof room of formation one, is provided with rubber layer in dustproof room.
2. yoke according to claim 1, is characterized in that: be provided with the dust proof tube coaxial with light hole outside the light hole of described upper magnet yoke, the setting layer that dust proof tube comprises tubular and the electrostatic precipitation layer covered inside setting layer.
3. yoke according to claim 2, is characterized in that: described electrostatic precipitation layer surface is provided with spiral groove.
4. yoke according to claim 3, is characterized in that: the outside of described upper dustproof groove and lower dustproof groove is provided with multiple lower cancave cambered surface.
5. yoke according to claim 3, is characterized in that: the light hole edge of described lower yoke is provided with electrostatic precipitation circle, and the surface of described electrostatic precipitation circle is provided with the annular groove concentric with light hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420654018.9U CN204231163U (en) | 2014-11-05 | 2014-11-05 | The dust-proof yoke of a kind of voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420654018.9U CN204231163U (en) | 2014-11-05 | 2014-11-05 | The dust-proof yoke of a kind of voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204231163U true CN204231163U (en) | 2015-03-25 |
Family
ID=52929212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420654018.9U Expired - Fee Related CN204231163U (en) | 2014-11-05 | 2014-11-05 | The dust-proof yoke of a kind of voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204231163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896798A (en) * | 2016-07-05 | 2016-08-24 | 苏州市优尔特精密机械科技有限公司 | Voice coil motor |
-
2014
- 2014-11-05 CN CN201420654018.9U patent/CN204231163U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896798A (en) * | 2016-07-05 | 2016-08-24 | 苏州市优尔特精密机械科技有限公司 | Voice coil motor |
| CN105896798B (en) * | 2016-07-05 | 2018-07-24 | 苏州市优尔特精密机械科技有限公司 | A kind of voice coil motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20171105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |