CN111212216B - Lens transmission device - Google Patents
Lens transmission device Download PDFInfo
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- CN111212216B CN111212216B CN202010324547.2A CN202010324547A CN111212216B CN 111212216 B CN111212216 B CN 111212216B CN 202010324547 A CN202010324547 A CN 202010324547A CN 111212216 B CN111212216 B CN 111212216B
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- Prior art keywords
- sleeve
- assembly
- fixed
- lens
- rotating shaft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
Abstract
The invention provides a lens transmission device which is arranged in a mobile terminal and comprises a camera lens, a fixed support, a first transmission assembly and a second transmission assembly; the fixed support is fixed inside the mobile terminal; the first transmission assembly comprises a first driving assembly, a screw rod and a sliding block; the second transmission assembly comprises a second driving assembly, a rotating shaft and a sleeve assembly, the sliding block is fixedly connected with the sleeve assembly, the sleeve assembly slides linearly relative to the rotating shaft, the sleeve assembly comprises a sleeve, and the top end of the sleeve is connected with the camera lens; the first driving assembly drives the screw rod to rotate so as to drive the sliding block to move along the linear direction, and the sliding block drives the sleeve assembly to move so as to enable the camera lens to move along the linear direction; the second driving component drives the rotating shaft to rotate so as to drive the sleeve to rotate, so that the camera lens rotates. Compared with the related art, the lens transmission device has high reliability and small occupied space.
Description
Technical Field
The present invention relates to the field of electronic devices, and particularly to a lens driving device for a portable electronic device.
Background
Along with the continuous development of mobile terminal products, the requirement on the screen occupation ratio of the screen is higher and higher, and particularly in the scheme of adopting a full-screen, other components cannot be arranged on one side of the screen according to the scheme, so that in order to avoid the arrangement of a camera lens on one side of the screen, a pop-up camera scheme is required to meet the requirement of full-screen design.
In a lens assembly of the related art, the lens assembly includes a lens module and a lens transmission device for controlling the lens module to go up and down or rotate, the lens transmission device includes a first transmission assembly for controlling the lens module to go up and down and pop out and a second transmission assembly for controlling the lens module to go up and down and then rotate, the second transmission assembly is usually fixed on the first transmission assembly, and in an actual working process, the second transmission assembly follows the first transmission assembly to integrally go up and down.
However, in the related art, since the second transmission assembly moves along with the first transmission assembly, the line connected with the second transmission assembly needs to move all the time, the flat cable of the part is easily damaged in the moving process, and the reliability of the operation is reduced; in addition, because the second transmission assembly generates relative motion inside the mobile terminal, a yield space needs to be reserved for the second transmission assembly inside the mobile terminal, and the occupied space is large.
Therefore, there is a need to provide a new lens driving device to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a lens transmission device to solve the problems of low working reliability, large occupied space and the like when the lens transmission device is applied to a mobile terminal.
In order to achieve the above object, the present invention provides a lens driving device, which is installed inside a mobile terminal; the lens driving device includes:
a camera lens;
the fixed support is fixed inside the mobile terminal;
the first transmission assembly comprises a first driving assembly fixed on the fixed support, a screw rod connected with the first driving assembly and a sliding block sleeved on the screw rod; and the number of the first and second groups,
the second transmission assembly comprises a second driving assembly fixed on the fixed support, a rotating shaft connected with the second driving assembly and a sleeve assembly sleeved outside the rotating shaft, the sliding block is fixedly connected with the sleeve assembly, the sleeve assembly slides linearly relative to the rotating shaft, the sleeve assembly comprises a sleeve sleeved outside the rotating shaft and rotates along with the rotating shaft, and the top end of the sleeve is connected with the camera lens;
the first driving assembly drives the screw to rotate so as to drive the sliding block to move along a linear direction, and the sliding block drives the sleeve assembly to move so as to enable the camera lens to move along the linear direction;
the second driving assembly drives the rotating shaft to rotate so as to drive the sleeve to rotate, and the camera lens rotates.
Preferably, the sleeve assembly further includes a spring support abutted to the sleeve and having an accommodating space, and a spring accommodated in the accommodating space through pre-compression, the slider includes a main body portion sleeved on the screw rod and a connecting portion extending from the main body portion to the sleeve and accommodated in the accommodating space, one end of the spring is connected to the spring support, and the other end of the spring is connected to the connecting portion.
Preferably, the sleeve assembly further includes a fixing bushing accommodated in the accommodating space and sleeved on the sleeve, and the connecting portion is connected to the spring through the fixing bushing.
Preferably, the spring bracket includes with the relative interval of sleeve sets up support wall and by the relative both ends of support wall buckle respectively and extend and with support wall forms jointly accommodating space's first wall and second wall, first wall is fixed in the sleeve is close to one side of second drive assembly, the second wall is fixed in the sleeve is kept away from one side of second drive assembly.
Preferably, the sleeve comprises a first section close to the second driving assembly and a second section connected to the first section and far away from the second driving assembly, the outer diameter of the second section is larger than that of the first section, so that a step part is formed between the first section and the second section, and the second wall of the spring support abuts against the step part.
Preferably, the spring support is provided with a first through hole penetrating through the first wall and the second wall, the first section penetrates through the first through hole, the spring is sleeved at the first section at intervals, and the fixed bushing is slidably connected to the first section.
Preferably, the fixed support is provided with a second through hole opposite to the first through hole, and the second section penetrates through the second through hole and extends to the outside of the fixed support to be connected with the camera lens.
Preferably, the fixed bolster includes the fixed plate, by first board and the second board that the relative both ends of fixed plate were buckled respectively and are extended, be fixed in the first board with the first bearing of second board and be fixed in the second bearing of first board, first drive assembly with the second drive assembly all is fixed in the first board, the screw rod passes through first bearing rotation support in the first board with the second board, the rotation axis passes through the second bearing rotation support in the first board.
Preferably, the lens transmission device further includes a guide rod fixed to the first plate and the second plate and extending in the linear direction, the main body of the slider is provided with a third through hole penetrating through the slider in the linear direction, and the main body is slidably connected to the guide rod through the third through hole.
Preferably, the rotating shaft is provided with an extension portion protruding from an outer wall of the rotating shaft, the sleeve comprises a receiving portion formed by recessing from an inner wall of the sleeve, the extension portion extends into the receiving portion, and the rotating shaft drives the sleeve to rotate through the extension portion.
Preferably, the first driving assembly includes a first speed reducer fixed to the fixing bracket and connected to the screw, and a first motor connected to the first speed reducer.
Preferably, the second driving assembly includes a second speed reducer fixed to the fixing bracket and connected to the rotation shaft, and a second motor connected to the second speed reducer.
Compared with the prior art, in the lens transmission device, the fixed bracket is fixed in the mobile terminal; the first transmission assembly comprises a first driving assembly fixed on the fixed support, a screw rod connected with the first driving assembly and a sliding block sleeved on the screw rod; the second transmission assembly comprises a second driving assembly fixed on the fixed support, a rotating shaft connected with the second driving assembly and a sleeve assembly sleeved on the outer side of the rotating shaft, the sliding block is fixedly connected with the sleeve assembly, the sleeve assembly slides linearly relative to the rotating shaft, the sleeve assembly comprises a sleeve which is sleeved on the outer side of the rotating shaft and rotates along with the rotating shaft, and the top end of the sleeve is connected with the camera lens; the first driving assembly drives the screw rod to rotate so as to drive the sliding block to move along the linear direction, and the sliding block drives the sleeve assembly to move so as to enable the camera lens to move along the linear direction; the second driving assembly drives the rotating shaft to rotate so as to drive the sleeve to rotate, so that the camera lens rotates; when the structure is applied to the mobile terminal, the positions of the first driving component and the second driving component in the mobile terminal are fixed, so that the circuit damage caused by the sliding of the second driving component in the mobile terminal in the working process is avoided, and the reliability of the lens transmission device is effectively ensured; in addition, the second driving assembly does not move relative to the mobile terminal, so that the problem that the reserved abdicating space for the second driving assembly is reserved inside the mobile terminal in the related technology is solved, and the whole occupied space of the lens transmission device is small.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a lens driving device according to the present invention;
FIG. 2 is an exploded perspective view of a portion of the lens driving device according to the present invention;
FIG. 3 is an assembly view of a partial three-dimensional structure of the lens driving device according to the present invention;
FIG. 4 is an exploded view of the perspective structure of FIG. 3;
FIG. 5 is an enlarged view of the portion A shown in FIG. 4;
fig. 6 is an assembled front view of a sleeve and a rotary shaft of the lens driving device according to the present invention;
fig. 7 is a schematic view of an initial state of the lens assembly applied to a mobile terminal according to the present invention;
fig. 8 is a schematic view of the extended state of the lens assembly applied to the mobile terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a lens driving device 100 installed inside a mobile terminal 300, and specifically, the lens driving device 100 includes a fixing bracket 1, a first driving component 2, a second driving component 3, a guide rod 4 and a camera lens 5.
The fixed bracket 1 is fixed inside the mobile terminal 300, specifically, the fixed bracket 1 includes a fixed plate 11, a first plate 12 and a second plate 13 respectively bent and extended from two opposite ends of the fixed plate 11, a first bearing 14 fixedly mounted on the first plate 12 and the second plate 13, and a second bearing 15 fixedly mounted on the first plate 12.
The first transmission assembly 2 comprises a first driving assembly 21, a screw 22 and a slider 23.
In this embodiment, the first driving assembly 21 is fixed to the first plate 12 of the fixing bracket 1, the screw 22 is connected to the first driving assembly 21, the screw 22 is rotatably supported on the first plate 12 and the second plate 13 through the first bearing 14, and the slider 23 is sleeved on the screw 22.
More specifically, the first driving assembly 21 includes a first speed reducer 211 fixed to the fixed bracket 1 and connected to the screw rod 22, and a first motor 212 connected to the first speed reducer 211, wherein the first motor 212 is configured to provide a driving force, an axial direction of the screw rod 22 is defined as an axial direction of the first driving assembly 21, and the axial direction of the screw rod 22 is parallel to a linear direction (i.e., an X-axis direction).
Here, it should be noted that the first speed reducer 211 is provided to convert a part of the rotation speed of the first motor 212 into a torque force, and the rotation performance of the screw 22 is more reliable because the rotation speed becomes smaller and the torque force becomes larger; of course, if the torque performance of the first motor 212 can provide sufficient torque, in other embodiments, it is also feasible that the first speed reducer 211 is not provided, and when the first speed reducer 211 is not provided, the first motor 212 is directly fixed to the fixing bracket 1, and the screw 22 is directly connected to the output end of the first motor 212.
The sliding block 23 includes a main body 231 sleeved on the screw rod 22 and a connecting portion 232 extending from the main body 231 to the second transmission assembly 3 in a protruding manner along a direction perpendicular to the linear direction, the main body 231 is provided with a threaded through hole 233 penetrating through the main body 231 along the linear direction, and the sliding block 23 is in threaded transmission connection with the screw rod 22 through the threaded through hole 233.
The second transmission assembly 3 includes a second driving assembly 31, a rotating shaft 32 and a sleeve assembly 33.
In this embodiment, the second driving assembly 31 is fixedly supported on the first plate 12 of the fixing bracket 1 and is disposed opposite to the first driving assembly 21 at an interval, the rotating shaft 32 is connected to the second driving assembly 31, the sleeve assembly 33 is sleeved outside the rotating shaft 32, the slider 23 is fixedly connected to the sleeve assembly 33, and the sleeve assembly 33 slides linearly relative to the rotating shaft 32.
The second driving assembly 31 includes a second speed reducer 311 fixed to the fixed bracket 1 and connected to the rotating shaft 32, and a second motor 312 connected to the second speed reducer 311, the second motor 312 is configured to provide a driving force, an axial direction of the rotating shaft 32 is defined as an axial direction of the second driving assembly 31, and the axial direction of the rotating shaft 32 is parallel to the linear direction (i.e., the X-axis direction); here, it should be noted that the second speed reducer 311 is provided to convert a part of the rotation speed of the second motor 312 into a torque, and the rotation performance of the rotating shaft 32 is more reliable because the rotation speed is reduced and the torque is increased; of course, if the torque performance of the second motor 312 can provide sufficient torque, in other embodiments, it is also feasible that the second speed reducer 311 is not provided, and when the second speed reducer 311 is not provided, the second motor 312 is directly fixed to the fixed bracket 1, and the rotating shaft 32 is directly connected to the output end of the second motor 312.
The first motor 212 and the second motor 312 are preferably stepper motors.
The sleeve component 33 includes a sleeve 331 sleeved outside the rotating shaft 32 and rotating along with the rotating shaft 32, and a top end of the sleeve 331 is connected to the camera lens 5.
Specifically, the sleeve 331 is fixedly connected with the slider 23 through the connecting portion 232 of the slider 23; the rotating shaft 32 includes a shaft main body 321 connected to the second driving element 31 and inserted into the sleeve 331, and the shaft main body 321 is rotatably supported on the first plate 12 through the second bearing 15; the rotation shaft 32 is provided with an extension 322 protruding from an outer wall thereof, and the sleeve 331 includes a receiving portion 3310 recessed from an inner wall thereof, but of course, in other embodiments, the receiving portion 3310 may further penetrate through the outer wall of the sleeve 331; the extension 322 extends into the receiving portion 3310 and forms a clearance fit, so that the sleeve 331 has an independent degree of freedom that slides along the linear direction relative to the rotating shaft 32, when the rotating shaft 32 rotates, the extension 322 abuts against the inner wall of the sleeve 331 and drives the sleeve 331 to rotate, in actual use, the second motor 312 can control the rotating shaft 32 to rotate in a forward direction or a reverse direction, so as to realize bidirectional rotation of the sleeve 331, and when the sleeve 331 rotates in a reverse direction, there is no angular return difference between the sleeve 331 and the rotating shaft 32, thereby effectively improving the reliability of the rotating motion.
When the lens transmission device 100 works, the first driving component 21 drives the screw rod 22 to rotate so as to drive the slider 23 to linearly move along the linear direction, and the slider 23 drives the sleeve component 33 to slide along the linear direction relative to the rotating shaft 32 so as to linearly move the camera lens 5, until the slider 23 moves to a position limit, the sleeve component 33 stops moving along the linear direction, and the position limit means that the spring support 332 rises and abuts against the second plate 13 of the fixed support 1; the second driving assembly 31 drives the rotating shaft 32 to rotate so as to drive the sleeve 331 to rotate around the axial direction of the rotating shaft 32, so that the camera lens 5 rotates.
In the above structure, the first transmission assembly 2 and the second transmission assembly 3 are respectively installed on a single fixing bracket 1, and the first driving assembly 21 and the second driving assembly 31 are oppositely arranged at intervals to form a side-by-side structure, so that the overall structure of the lens transmission device 100 is more compact, the occupied space is small, when the lens transmission device 100 is applied to a mobile terminal 300, the first driving assembly 21 and the second driving assembly 31 are fixedly installed on the mobile terminal 300 through the fixing bracket 1, the positions of the first driving assembly 21 and the second driving assembly 31 installed inside the mobile terminal 300 are fixed, the difficulty of cable arrangement and wiring inside the mobile terminal 300 is reduced, the problem of line damage caused by the sliding of the second driving assembly 31 inside the mobile terminal part in the working process and the reliability risk of line damage are reduced, the reliability of the lens driving device 100 is effectively guaranteed; in addition, since the second driving assembly 31 and the mobile terminal 300 do not move relatively, the problem of reserving an allowance space for the second driving assembly 31 inside the mobile terminal 300 in the related art is avoided, so that the overall occupied space of the lens transmission device 100 is small.
It should be noted that, in this embodiment, the fixed bracket 1 is used as one of the components of the lens transmission device 100, so as to facilitate the lens transmission device 100 to be mounted on the mobile terminal 300, before assembly, the first transmission assembly 2 and the second transmission assembly 3 are firstly mounted on the fixed bracket 1, and then the fixed bracket 1 is mounted on the corresponding position of the mobile terminal 300 to implement the assembly work of the lens transmission device 100, so as to reduce the difficulty of assembly; of course, in other embodiments, the fixed frame 1 is not a part of the lens actuator 100, but may be a part of the mobile terminal 300, in which case, the fixed frame is a part of the mobile terminal and is itself fixed on the mobile terminal 300, and when the lens actuator 100 is assembled, the first transmission assembly 2 and the second transmission assembly 3 are respectively mounted on the fixed frame 1, so as to complete the assembly of the lens actuator 100.
Preferably, in order to avoid rigid collision damage caused by falling or strong stress of the lens transmission device 100 along the linear direction (i.e. the X-axis direction) during use, in the present embodiment, the second transmission assembly 3 further includes a spring support 332 abutting against the sleeve 331 and having an accommodating space 3320, a spring 333 pre-compressed and accommodated in the accommodating space 3320, and a fixing bushing 334 accommodated in the accommodating space 3320 and sleeved and fixed on the sleeve 331.
The spring support 332 includes a support wall 3321, and a first wall 3322 and a second wall 3323 bent from opposite ends of the support wall 3321 and forming the receiving space 3320 together with the support wall 3321, wherein the first wall 3322 is fixed to a side of the sleeve 331 close to the second driving element 31, and the second wall 3323 is fixed to a side of the sleeve 331 away from the second driving element 31.
The connecting part 232 is accommodated in the accommodating space 3320, one end of the spring 333 is connected to the second wall 3323, and the other end is fixedly connected to the connecting part 232; the connecting portion 232 is fixedly connected to the spring 333 through the fixing bushing 334. It is worth mentioning that when the fixing bushing 334 is not provided, the connecting portion 232 is directly fixedly connected with the spring 333.
Further, the sleeve 331 includes a first segment 3311 located near the second driving component 31 and a second segment 3312 connected to an end of the first segment 3311 away from the second driving component 31.
The outer diameter of the second segment 3312 is larger than the outer diameter of the first segment 3311, so that a step portion 3313 is formed between the first segment 3311 and the second segment 3312, and the second wall 3323 of the spring holder 332 abuts against the step portion 3313; the spring support 332 has a first through hole 3324 penetrating through the first wall 3322 and the second wall 3323, the first segment 3311 is disposed through the first through hole 3324, the spring 333 is disposed on the first segment 3311 at intervals, and the fixing bushing 334 is slidably connected to the first segment 3311; the second plate 13 of the fixing bracket 1 is provided with a second through hole 130 opposite to the first through hole 3324, and the second section 3312 penetrates through the second through hole 130 and extends to the outside of the fixing bracket 1 to be connected with the camera lens 5.
It should be noted that after the spring 333 is installed in the spring support 332, the spring 333 is always in a compressed state, so that one end of the spring 333 pushes the second wall 3323 of the spring support 332 against the end surface of the second section 3312 close to the second driving component 31 through elastic force, the other end of the spring pushes the fixed bushing 334 against the connecting portion 232 through elastic force, and the elastic force of the spring 333 is much greater than the friction force between the fixed bushing 334 and the first section 3311, so as to ensure that the slider 23 drives the sleeve 331 to linearly move along the linear direction through the connecting portion 232 in real time, thereby ensuring the reliability of the linear movement along the linear direction, when the second wall 3323 of the spring support 332 abuts against the second plate 13, the spring support 332 is limited by the second plate 13, and the spring support 332 stops driving the sleeve 331 to rise along the linear direction, at this time, the position of the slider 23 is the limit position thereof.
Through the above structure, when the camera lens 5 is outside the mobile terminal 300, in the process that the mobile terminal 300 falls or is strongly stressed along the linear direction (i.e. the X-axis direction), the sleeve 331 drives the spring support 332 to move downwards along the linear direction, and the spring 333 is compressed and generates a buffering effect, so that the risk of damage to the lens transmission device 100 is avoided, and the reliability of use is further improved.
The guide rod 4 is fixed to the first plate 12 and the second plate 13 and extends along the linear direction, the main body 231 of the slider 23 is provided with a third through hole 234 which penetrates through the main body in the linear direction and is spaced from the threaded through hole 233, the main body 231 is in sliding connection with the guide rod 4 through the third through hole 234, and through the arrangement of the guide rod 4, the slider 23 is effectively prevented from rotating relatively around the axial direction of the screw rod 22 in the sliding process, so that the slider 23 is ensured to drive the sleeve 331 to slide relative to the rotating shaft 32 along the linear direction, and reliability is ensured.
In the process of raising the camera lens 5, the first driving assembly 21 operates, and at this time, the second driving assembly 31 does not operate, the first driving assembly 21 drives the screw rod 22 to rotate, so as to drive the slider 23 to rise along a linear direction (i.e., an X-axis direction), the connecting portion 232 of the slider 23 presses the fixing bushing 334 along the linear direction, and the sleeve 331 is driven to rise through the spring 333 and the spring support 332 in sequence, so that the camera lens 5 is raised along the linear direction, and the camera lens 5 is raised out of the middle frame 6 of the mobile terminal 300.
After the camera lens 5 is lifted, the first driving component 21 stops working, the second driving component 31 works, at this time, the second driving component 31 drives the rotating shaft 32 to rotate so as to drive the sleeve 331 to rotate around the linear direction in a forward direction or a reverse direction, so that the camera lens 5 rotates, and in practical application, the rotating direction, the rotating angle and the rotating speed of the second driving component 31 can be controlled in real time through software adjustment of the mobile terminal 300, so that real-time rotation and dynamic tracking of the camera lens 5 are realized.
In the process of retracting the camera lens 5, the second driving component 31 controls the camera lens 5 to rotate back to the initial position of the lifted state, then the second driving component 31 stops working, the first driving component 21 works, the first driving component 21 drives the screw rod 22 to rotate so as to drive the slider 23 to descend along the linear direction, the connecting portion 232 of the slider 23 presses the first wall 3322 of the spring support 332 along the linear direction so as to drive the sleeve 331 to descend, and thus the camera lens 5 descends along the linear direction, so that the camera lens 5 descends into the middle frame 6 of the mobile terminal 300.
Compared with the related art, in the lens transmission device 100 of the present invention, the fixed bracket 1 is fixed inside the mobile terminal 300; the first transmission assembly 2 comprises a first driving assembly 21 fixed on the fixed support 1, a screw 22 connected with the first driving assembly 21 and a slide block 23 sleeved on the screw 22; the second transmission assembly 3 comprises a second driving assembly 31 fixed on the fixing bracket 1, a rotating shaft 32 connected with the second driving assembly 31, and a sleeve assembly 33 sleeved outside the rotating shaft 32, the slider 23 is fixedly connected with the sleeve assembly 33, the sleeve assembly 33 slides linearly relative to the rotating shaft 32, the sleeve assembly 33 comprises a sleeve 331 sleeved outside the rotating shaft 32 and rotating along with the rotating shaft 32, and the top end of the sleeve 331 is connected to the camera lens 5; the first driving assembly 21 drives the screw 22 to rotate so as to drive the sliding block 23 to move in a linear direction, and the sliding block 23 drives the sleeve assembly 33 to move so as to drive the camera lens 5 to move in the linear direction; the second driving assembly 31 drives the rotating shaft 32 to rotate so as to drive the sleeve 331 to rotate, so that the camera lens 5 rotates; when the above structure is applied to the mobile terminal 300, the positions of the first driving assembly 21 and the second driving assembly 31 inside the mobile terminal 300 are fixed, so that the damage of the circuit caused by the sliding of the second driving assembly 31 inside the mobile terminal 300 during the working process is avoided, and the reliability of the lens transmission device 100 is effectively ensured; in addition, since the second driving component 31 and the mobile terminal 300 do not move relatively, the problem of reserving a space for the second driving component inside the mobile terminal in the related art is avoided, so that the overall occupied space of the lens transmission device 100 is small.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (12)
1. The utility model provides a camera lens transmission, its installs inside mobile terminal which characterized in that: the lens driving device includes:
a camera lens;
the fixed support is fixed inside the mobile terminal;
the first transmission assembly comprises a first driving assembly fixed on the fixed support, a screw rod connected with the first driving assembly and a sliding block sleeved on the screw rod; and the number of the first and second groups,
the second transmission assembly comprises a second driving assembly fixed on the fixed support, a rotating shaft connected with the second driving assembly and a sleeve assembly sleeved outside the rotating shaft, the sliding block is fixedly connected with the sleeve assembly, the sleeve assembly slides linearly relative to the rotating shaft, the sleeve assembly comprises a sleeve sleeved outside the rotating shaft and rotates along with the rotating shaft, and the top end of the sleeve is connected with the camera lens; the sleeve assembly further comprises a spring support which is abutted against the sleeve and is provided with an accommodating space, and a spring which is pre-compressed and accommodated in the accommodating space, wherein one end of the spring is connected with the spring support, and the other end of the spring is connected with the sliding block;
the first driving assembly drives the screw to rotate so as to drive the sliding block to move along a linear direction, and the sliding block drives the sleeve assembly to move so as to enable the camera lens to move along the linear direction;
the second driving assembly drives the rotating shaft to rotate so as to drive the sleeve to rotate, and the camera lens rotates.
2. The lens driving device as claimed in claim 1, wherein the slider includes a main body portion sleeved on the screw and a connecting portion extending from the main body portion to the sleeve and received in the receiving space, and the spring is connected to the connecting portion.
3. The lens transmission device as claimed in claim 2, wherein the sleeve assembly further includes a fixing bushing received in the receiving space and sleeved on the sleeve, and the connecting portion is connected to the spring through the fixing bushing.
4. The lens driving device as claimed in claim 3, wherein the spring support includes a supporting wall disposed opposite to the sleeve at an interval, and a first wall and a second wall extending from opposite ends of the supporting wall and forming the receiving space together with the supporting wall, the first wall is fixed to a side of the sleeve close to the second driving assembly, and the second wall is fixed to a side of the sleeve away from the second driving assembly.
5. The lens driving device as claimed in claim 4, wherein the sleeve includes a first section located close to the second driving component and a second section connected to the first section and away from the second driving component, an outer diameter of the second section is larger than that of the first section so that a step portion is formed between the first section and the second section, and the second wall of the spring support abuts against the step portion.
6. The lens driving device as claimed in claim 5, wherein the spring support has a first through hole penetrating through the first wall and the second wall, the first section is disposed through the first through hole, the spring is disposed on the first section at an interval, and the fixing bushing is slidably connected to the first section.
7. The lens driving device as claimed in claim 6, wherein the fixing bracket has a second through hole opposite to the first through hole, and the second section is disposed through the second through hole and extends out of the fixing bracket to connect with the camera lens.
8. The lens driving device as claimed in claim 2, wherein the fixing bracket includes a fixing plate, a first plate and a second plate bent and extended from opposite ends of the fixing plate, a first bearing fixed to the first plate and the second plate, and a second bearing fixed to the first plate, the first driving assembly and the second driving assembly are both fixed to the first plate, the screw is rotatably supported to the first plate and the second plate by the first bearing, and the rotating shaft is rotatably supported to the first plate by the second bearing.
9. The lens driving device as claimed in claim 8, further comprising a guide rod fixed to the first and second plates and extending in the linear direction, wherein the body portion of the slider is provided with a third through hole penetrating therethrough in the linear direction, and the body portion is slidably connected to the guide rod through the third through hole.
10. The lens driving device as claimed in claim 1, wherein the rotation shaft is provided with an extension portion protruding from an outer wall thereof, the sleeve includes a receiving portion recessed from an inner wall thereof, the extension portion extends into the receiving portion, and the rotation shaft drives the sleeve to rotate via the extension portion.
11. The lens driving device according to any one of claims 1 to 10, wherein the first driving assembly includes a first decelerator fixed to the fixing bracket and connected to the screw, and a first motor connected to the first decelerator.
12. The lens driving apparatus according to any one of claims 1 to 10, wherein the second driving assembly includes a second decelerator fixed to the fixing bracket and connected to the rotation shaft, and a second motor connected to the second decelerator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010324547.2A CN111212216B (en) | 2020-04-23 | 2020-04-23 | Lens transmission device |
| PCT/CN2020/090159 WO2021212570A1 (en) | 2020-04-23 | 2020-05-14 | Lens transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010324547.2A CN111212216B (en) | 2020-04-23 | 2020-04-23 | Lens transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111212216A CN111212216A (en) | 2020-05-29 |
| CN111212216B true CN111212216B (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010324547.2A Active CN111212216B (en) | 2020-04-23 | 2020-04-23 | Lens transmission device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111212216B (en) |
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| CN112230363B (en) * | 2020-09-30 | 2022-04-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Lens transmission device and mobile terminal |
| CN115734050A (en) * | 2021-08-27 | 2023-03-03 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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| US9413968B2 (en) * | 2013-04-04 | 2016-08-09 | Samsung Electronics Co., Ltd. | Camera apparatus and wireless communication terminal including the same |
| WO2019085535A1 (en) * | 2017-10-31 | 2019-05-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Functional device and electronic apparatus |
| CN109451217B (en) * | 2018-11-16 | 2021-07-06 | 维沃移动通信有限公司 | Mobile terminal |
| CN110113452B (en) * | 2019-04-23 | 2020-08-25 | 瑞声光电科技(常州)有限公司 | Imaging device, electronic apparatus, and method for using electronic apparatus |
| CN110035213B (en) * | 2019-05-24 | 2024-04-05 | 深圳市兆威机电股份有限公司 | Camera mechanism and electronic equipment |
| WO2020252696A1 (en) * | 2019-06-19 | 2020-12-24 | 常州市瑞泰光电有限公司 | Camera system and mobile terminal |
| CN209930310U (en) * | 2019-08-02 | 2020-01-10 | 深圳市联合同创科技股份有限公司 | Hidden rotatory lift cell-phone camera |
| CN110602366B (en) * | 2019-09-24 | 2021-07-30 | 深圳创维－Rgb电子有限公司 | Camera and display |
| CN110650363B (en) * | 2019-10-23 | 2024-03-22 | 江苏精研科技股份有限公司 | Lifting and turning device for television camera |
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2020
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| Publication number | Publication date |
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| CN111212216A (en) | 2020-05-29 |
| WO2021212570A1 (en) | 2021-10-28 |
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Address after: 213000 Xinwei 1st Road, Changzhou Comprehensive Bonded Zone, Jiangsu Province Patentee after: Chengrui optics (Changzhou) Co., Ltd Address before: 213000 Xinwei Road, Changzhou Export Processing Zone, Jiangsu Province Patentee before: Ruisheng Communication Technology (Changzhou) Co.,Ltd. |
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