CN218825104U - Lens drive module that shocks resistance - Google Patents
Lens drive module that shocks resistance Download PDFInfo
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- CN218825104U CN218825104U CN202223018254.5U CN202223018254U CN218825104U CN 218825104 U CN218825104 U CN 218825104U CN 202223018254 U CN202223018254 U CN 202223018254U CN 218825104 U CN218825104 U CN 218825104U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
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Abstract
The utility model discloses a shock-resistant lens driving module, which comprises a motor, a screw rod, a guide rod, a bracket and a lens mounting block, wherein one end of a rotating shaft of the motor is connected with one end of the screw rod; the screw is arranged on the bracket through a bearing; the lens installation block comprises a sliding block, a toothed plate and two groups of clamping groups, each group of clamping groups comprises a toothed sheet and an elastic sheet, the toothed sheets and the elastic sheets of each group of clamping groups are respectively matched with a clamping screw, each toothed sheet is provided with a first tooth part meshed with the screw, the toothed plate is provided with a second tooth part meshed with the screw, and the sliding block is movably arranged on the guide rod in a penetrating mode so as to move axially along the guide rod. The utility model discloses a slider passes through shell fragment and tooth piece and screw rod cooperation, has realized the flexonics with the screw rod, receives axial impact back at the camera lens, and the shell fragment can produce to warp and can cushion the impact to reduce and strike, can not harm the part moreover, the shock resistance of module is good, and transmission efficiency and transmission precision are high moreover.
Description
Technical Field
The utility model belongs to camera lens drive module field, more specifically relates to a camera lens drive module that shocks resistance.
Background
The telescopic lens is widely used in high-end low-end digital cameras, and can well complete a zooming task as long as a focal section is changed except for a fixed-focus lens.
At present, although the telescopic mechanisms of cameras produced by each manufacturer on the market are different, the telescopic mechanisms have certain defects in practical application, namely, the front and back movement of the camera is focused by the driving mechanism driven by the motor, rigid connection is adopted between the camera and the driving mechanism, once the extended camera is impacted from the outside, the impact force is directly transmitted to the driving mechanism by the camera, so that the driving mechanism is damaged irreversibly, such as breakage and the like, and the lifting function of the camera cannot be normally used, thereby not only influencing the product use experience of users, but also limiting the popularization and application of the front and back movement focusing camera. In addition, the transmission mechanism is worn and loosened after being used for a long time, and transmission precision and transmission efficiency are also reduced.
SUMMERY OF THE UTILITY MODEL
To the above defect or the improvement demand of prior art, the utility model provides a camera lens drive module that shocks resistance, its slider that is used for installing the camera lens passes through shell fragment and tooth piece and screw rod cooperation, realized the flexonics with the screw rod, receive axial impact back at the camera lens, the shell fragment can produce to warp and to cushion impact, thereby reduce and strike, and can not harm the part yet, shock resistance is good, and the elasticity of shell fragment can make shell fragment and tooth piece clip the screw rod always, the tooth and the shell fragment that make the screw rod, the tooth of tooth piece contacts always, eliminate the intertooth space clearance, can improve transmission precision and transmission efficiency.
In order to achieve the above object, according to an aspect of the present invention, there is provided a lens driving module with impact resistance, which is characterized in that it comprises a motor, a screw, a guide rod, a bracket and a lens mounting block, wherein:
the motor is provided with a rotating shaft, and one end of the rotating shaft is connected with one end of the screw rod;
the screw rod is rotatably arranged on the bracket through a bearing, and the guide rod is fixedly arranged on the bracket and is parallel to the screw rod;
the lens mounting block comprises a sliding block, a toothed plate and two groups of clamping groups, the toothed plate and the two groups of clamping groups are mounted on the sliding block together, the two groups of clamping groups are arranged along the axial direction of the screw rod, each group of clamping groups comprises a toothed sheet and an elastic sheet which are arranged oppositely, each toothed sheet and the elastic sheet of each clamping group are respectively matched and clamped with the screw rod, the elastic sheets apply elastic force to the screw rod, the toothed plate and the two toothed sheets are arranged in a triangular mode, the toothed plate is located between the two elastic sheets, each toothed sheet is provided with a first tooth part meshed with the screw rod, a second tooth part meshed with the screw rod is arranged on the toothed plate, and the sliding block is movably mounted on the guide rod in a penetrating mode so as to move along the axial direction of the guide rod.
Preferably, the motor still has shell, end cover, stator and rotor magnet, the first end of shell is connected the end cover and the second end relative with first end of shell is connected the support, the stator is installed on the shell and be located in the shell, the fixed suit of rotor magnet is in the pivot, the one end of keeping away from the screw rod of pivot is installed through first bearing on the end cover, the one end of being close to the screw rod of pivot is installed through the second bearing on the support.
Preferably, the first bearing and the second bearing are both precision bearings, so that the first bearing and the second bearing can be used for realizing the precise installation of the rotating shaft in the radial direction.
Preferably, one end of the screw rod, which is far away from the rotating shaft, is mounted on the bracket through a swing bearing;
one end of the rotating shaft, which is far away from the screw rod, penetrates through the end cover;
and an elastic cover plate is fixedly arranged on the outer side of the end cover, and applies elasticity to one end of the rotating shaft, which is far away from the screw rod, so as to be matched with the oscillating bearing to eliminate the axial movement of the rotating shaft.
Preferably, the motor is a stepper motor.
Preferably, the rotating shaft is integrally formed with the screw.
Preferably, the slider has two ears, each of the ears is provided with a through hole, and the guide bar passes through the ear from the through hole of each ear.
Preferably, a notch is formed in the sliding block, the screw rod penetrates through the notch, the notch is provided with two opposite groove walls, the two tooth plates are arranged on one of the groove walls, and the tooth plate and the two elastic sheets are arranged on the other groove wall.
Preferably, the sliding block, the toothed plate and the elastic sheet are integrally formed.
Preferably, the slider is provided with a load mounting hole for mounting the lens.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1) The utility model discloses a be provided with the shell fragment on the slider, the shell fragment can push down the screw rod with the tooth piece cooperation, fixes the slider on the screw rod, can drive the camera lens installation piece when the screw rod rotates and remove, and the screw rod is cliied to shell fragment and tooth piece moreover, can realize the flexible mounting of camera lens installation piece and screw rod for the camera lens is when receiving external force impact, and shell fragment and tooth piece can cushion impact force, thereby reduce and strike, make this camera lens drive module's shock resistance high. In addition, the elastic pieces can eliminate the radial shaking of the screw rod to the maximum extent, and the moving accuracy of the lens is guaranteed. In addition, the elastic force of the elastic sheet can enable the elastic sheet and the toothed sheet to clamp the screw rod all the time, so that the teeth of the screw rod are in contact with the teeth of the toothed sheet all the time, the gap between the teeth is eliminated, and the transmission precision and the transmission efficiency can be improved.
2) The utility model discloses a rear end of motor is provided with the elastic cover board, and the pivot can be pushed down to the elastic cover board, and the oscillating bearing cooperation of screw rod end location, eliminates the drunkenness of pivot between the axial, also can improve transmission precision and transmission efficiency.
3) The utility model discloses an both ends of pivot all are provided with precision bearing, and two precision bearing can accurate location, eliminate tolerance and the radial error of the installation of pivot.
Drawings
Fig. 1 and fig. 2 are schematic perspective views of the present invention at different viewing angles;
FIG. 3 is a cross-sectional view of the present invention;
fig. 4 is a perspective view of a lens mount block of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 4, an impact-resistant lens driving module includes a motor 1, a screw 121, a guide rod 21, a bracket 2, and a lens mounting block, where the motor 1 is preferably a stepping motor, and:
the motor 1 is provided with a rotating shaft 12, one end of the rotating shaft 12 is connected with one end of the screw rod 121 so as to drive the screw rod 121 to rotate, the rotating shaft 12 and the screw rod 121 are preferably integrally formed, namely, the same shaft, one part is used as the rotating shaft 12 of the motor 1, and the other part is designed as the screw rod 121.
The screw rod 121 is rotatably mounted on the bracket 2 through a bearing, and the guide rod 21 is fixedly mounted on the bracket 2 and is parallel to the screw rod 121. The support 2 is preferably a U-shaped frame.
The lens mounting block comprises a sliding block 3, a toothed plate 33 and two groups of clamping groups, wherein the toothed plate 33 and the two groups of clamping groups are jointly mounted on the sliding block, the sliding block 3 is used for mounting a lens, a load mounting hole 35 for mounting the lens is preferably formed in the sliding block 3, the two groups of clamping groups are arranged along the axial direction of the screw rod 121, each group of clamping groups comprises a toothed plate and an elastic plate which are oppositely arranged, the toothed plate and the elastic plate of each group of clamping groups are respectively matched with and clamped with the screw rod 121, the elastic plate exerts elastic force on the screw rod 121, the two toothed plates are respectively a first toothed plate 311 and a second toothed plate 312, the two elastic plates are respectively a first elastic plate 341 and a second elastic plate 342, the first toothed plate 311 is oppositely arranged with the first elastic plate 341, and the second toothed plate 312 is oppositely arranged with the second elastic plate 342.
The toothed plate 33 and the two toothed plates are arranged in a triangular shape, that is, they are distributed on three vertexes of the triangle, the toothed plate 33 is located between the two spring pieces, the two toothed plates are on the same side, the toothed plate 33 and the two spring pieces are also on the same side and on different sides from the toothed plate, each toothed plate is provided with a first tooth portion meshed with the screw rod 121, the toothed plate 33 is provided with a second tooth portion meshed with the screw rod 121, and the sliding block 3 is movably mounted on the guide rod 21 in a penetrating manner so as to move along the axial direction of the guide rod 21. Slider 3 has two ears, is first ear 321 and second ear 322 respectively, every the ear all is provided with the through-hole, guide bar 21 passes the ear from the through-hole of every ear.
The sliding block 3 is provided with a notch 36, the screw 121 penetrates through the notch 36, the notch 36 has two opposite groove walls, the two tooth plates are arranged on one of the groove walls, and the tooth plate 33 and the two elastic sheets are both arranged on the other groove wall. The motor 1 drives the screw rod 121 to rotate, so that the tooth sheets are pushed to move along the axial direction of the screw rod 121, the sliding block 3 is driven to move integrally, the movement of the sliding block 3 also drives the lens mounted on the sliding block 3 to move, and the micro focusing and focusing of the lens can be realized. The distance between the elastic sheet of the clamping group and the opposite tooth sheet is smaller than the outer diameter of the screw rod 121, after the screw rod 121 is installed, the elastic sheet presses the screw rod 121, the radial shaking of the screw rod 121 during movement can be reduced, the flexible connection with the screw rod 121 can be realized, and the impact resistance of a lens installed on the sliding block 3 is improved. Based on the elastic property of the elastic sheet, the elastic sheet can always press the screw rod 121, so that the screw rod 121 can be kept in the notch 36 of the sliding block 3, and the lens mounting block cannot fall off even under the power-on condition. The sliding block 3, the tooth plate 33 and the elastic sheet are preferably integrally formed. Preferably, a toothed plate 33 engaged with the screw rod 121 is further disposed on the sliding block 3, the toothed plate 33 is located between the two elastic pieces, and the toothed plate 33 is preferably integrally formed with the sliding block 3.
The utility model discloses a screw rod 121 and tooth piece and pinion rack 33's cooperation can be seen as the cooperation of current screw rod 121 and nut, if the rotational degree of freedom of nut is restricted, then the rotation of screw rod 121 can drive the nut along the axial displacement of screw rod 121. In order to ensure that the lens mounting block is moved in the axial direction of the screw 121 as a whole when the screw 121 is rotated, the rotational freedom of the lens mounting block around the screw 121 or around the guide rod 21 must be restricted so that the lens mounting block can move only in the axial direction of the guide rod 21. Therefore, the guide rod 21 can be a square rod, and the slide block 3 is provided with a square hole matched with the square rod; or, the guide bar 21 can be a round bar, and a precise shaft hole is arranged between the guide bar 21 and the sliding block 3, so that the sliding of the sliding block 3 on the guide bar 21 is smoother, the shaking of the sliding block 3 and the carried load is eliminated, and the installation positions of the tooth piece and the elastic piece are reasonably designed by starting from the tooth piece and the elastic piece, and the tooth piece and the elastic piece can limit the sliding block 3 to rotate around the guide bar 21 together. Of course, after the lens is mounted on the slider 3 and the lens is mounted on the lens mounting hole of the outer housing, the lens can only move along the axial direction of the lens mounting hole and can also limit the slider 3 to rotate around the guide rod 21.
Further, the motor 1 further comprises a housing, an end cover, a stator 16, a rotating shaft 12 and a rotor magnet 14, wherein a first end of the housing is connected with the end cover, a second end of the housing is connected with the bracket 2, and the stator 16 is installed on the housing and is positioned in the housing.
One end of the rotating shaft 12, which is far away from the screw rod 121, is mounted on the end cover through a first bearing 151, one end of the rotating shaft 12, which is close to the screw rod 121, is mounted on the bracket 2 through a second bearing 152, and the first bearing 151 and the second bearing 152 are both precision bearings, so that the precise mounting of the rotating shaft 12 in the radial direction is realized through the first bearing 151 and the second bearing 152. The rotor magnet 14 is fixedly sleeved on the rotor magnet 14, and the rotating shaft 12 of the motor 1 is coaxially connected with the screw rod 121. The precision bearing and the rotating shaft 12 are matched through a shaft hole, the inner diameter of the precision bearing is equal to the outer diameter of the rotating shaft 12, the shaft section of the outer ring of the precision bearing is integrally in a convex shape and is divided into a first part and a second part, the outer diameter of the first part is larger than that of the second part to form a flange part, the outer diameter of the first part of the outer ring of the precision bearing is equal to the inner diameter of a stator 16 of the motor 1, and the first part of the outer ring of the precision bearing is fixedly arranged on the stator 16 of the motor 1; the two precision bearings enable the shaft 12 to be positioned and eliminate the radial loose clearance of the shaft 12. The end of the screw 121 close to the rotating shaft 12 is also mounted on the inner ring of the second bearing 152 on the bracket 2. The stator 16 is provided with a terminal 11 to which an external power source can be connected.
Further, one end of the screw rod 121 far away from the rotating shaft 12 is mounted on the bracket 2 through a swing bearing 22, and then the screw rod 121 is mounted on the bracket 2 through the swing bearing 22 and a second bearing 152; the rocking bearing 22 is a bearing that is reciprocatingly rotated within a certain angle of view, and therefore, the rocking bearing 22 can limit the rotational stroke of the screw 121, and thus also the telescopic stroke of the lens mounted on the slider 3. The end of the rotating shaft 12 far away from the screw rod 121 penetrates through the end cover.
An elastic cover plate 13 is fixedly installed on the outer side of the end cover, and the elastic cover plate 13 applies elastic force to one end of the rotating shaft 12 far away from the screw rod 121 so as to cooperate with the swing bearing 22 to eliminate the axial movement of the rotating shaft 12.
The working process of the utility model is as follows:
the utility model discloses a binding post 11 is rotatory after 1 circular telegram for step motor, the rotation of pivot 12 makes the rotation of screw rod 121, because screw rod 121 is cliied in shell fragment and the cooperation of tooth piece, and slider 3 also installs on guide bar 21, slider 3's rotation is restricted, the rotation of screw rod 121 makes tooth piece and the pinion rack 33 with screw rod 121 meshing can only follow the axial displacement of screw rod 121, the tooth piece, the removal of pinion rack 33 drives slider 3 along the axial reciprocating motion of guide bar 21, and then the drive is installed lens reciprocating motion on slider 3, realize focusing, zoom and function such as focusing.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a lens drive module who shocks resistance which characterized in that, includes motor, screw rod, guide bar, support and camera lens installation piece, wherein:
the motor is provided with a rotating shaft, and one end of the rotating shaft is connected with one end of the screw rod;
the screw rod is rotatably arranged on the bracket through a bearing, and the guide rod is fixedly arranged on the bracket and is parallel to the screw rod;
the lens mounting block comprises a sliding block, a toothed plate and two groups of clamping groups, the toothed plate and the two groups of clamping groups are mounted on the sliding block together, the two groups of clamping groups are arranged along the axial direction of the screw rod, each group of clamping group comprises a toothed piece and an elastic piece which are arranged oppositely, the toothed piece and the elastic piece of each clamping group are matched with and clamp the screw rod respectively, the elastic pieces exert elastic force on the screw rod, the toothed plate and the two toothed pieces are arranged in a triangular mode and are located between the two elastic pieces, each toothed piece is provided with a first tooth part meshed with the screw rod, a second tooth part meshed with the screw rod is arranged on the toothed plate, and the sliding block is movably mounted on the guide rod so as to move along the axial direction of the guide rod.
2. An impact-resistant lens driving module as claimed in claim 1, wherein said motor further has a housing, an end cap, a stator and a rotor magnet, a first end of said housing is connected to said end cap and a second end of said housing opposite to said first end is connected to said bracket, said stator is mounted on said housing and located inside said housing, said rotor magnet is fixedly mounted on said shaft, an end of said shaft far from said screw is mounted on said end cap by a first bearing, and an end of said shaft near to said screw is mounted on said bracket by a second bearing.
3. The impact-resistant lens driving module as claimed in claim 2, wherein the first bearing and the second bearing are precision bearings, so that the first bearing and the second bearing can be used to realize precise installation of the rotating shaft in the radial direction.
4. An impact-resistant lens driving module according to claim 2, wherein an end of the screw rod away from the rotating shaft is mounted on the bracket through a swing bearing;
one end of the rotating shaft, which is far away from the screw rod, penetrates through the end cover;
and an elastic cover plate is fixedly arranged on the outer side of the end cover, and applies elasticity to one end of the rotating shaft, which is far away from the screw rod, so as to be matched with the oscillating bearing to eliminate the axial movement of the rotating shaft.
5. The impact-resistant lens driving module of claim 1, wherein the motor is a stepping motor.
6. The impact-resistant lens driving module of claim 1, wherein the shaft is integrally formed with the screw.
7. An impact-resistant lens driving module according to claim 1, wherein the slider has two ears, each of the ears is provided with a through hole, and the guide rod passes through the ear from the through hole of each of the ears.
8. The impact-resistant lens driving module as claimed in claim 1, wherein the sliding block is provided with a notch, the screw rod passes through the notch, the notch has two opposite groove walls, two of the teeth plates are disposed on one of the groove walls, and the tooth plate and two of the resilient plates are disposed on the other groove wall.
9. The impact-resistant lens driving module according to claim 1, wherein the sliding block, the toothed plate and the elastic plate are integrally formed.
10. The impact-resistant lens driving module as claimed in claim 1, wherein the slider has a load mounting hole for mounting a lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223018254.5U CN218825104U (en) | 2022-11-14 | 2022-11-14 | Lens drive module that shocks resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223018254.5U CN218825104U (en) | 2022-11-14 | 2022-11-14 | Lens drive module that shocks resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218825104U true CN218825104U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223018254.5U Active CN218825104U (en) | 2022-11-14 | 2022-11-14 | Lens drive module that shocks resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218825104U (en) |
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2022
- 2022-11-14 CN CN202223018254.5U patent/CN218825104U/en active Active
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