CN221378355U - Lens driving device, image pickup device and mobile terminal - Google Patents

Abstract

The utility model provides a lens driving device, an imaging device and a mobile terminal. The lens driving device comprises a shell component, wherein the shell component is provided with a containing space, and the lens driving device further comprises a lens barrel arranged in the containing space: a prism support; the first limiting assembly is at least partially arranged on the prism support; the first limiting assembly and the second limiting assembly are sleeved and can rotate relative to the second limiting assembly, and the first limiting assembly can drive at least one part of the second limiting assembly to rotate relative to the shell assembly; and at least one part of the driving assembly is arranged on the shell assembly, and at least one other part of the driving assembly is arranged on the prism support. The utility model solves the problem of poor anti-shake effect of the periscope type lens module in the prior art.

Description

Lens driving device, image pickup device and mobile terminal

Technical Field

The present utility model relates to the field of optical lens apparatuses, and in particular, to a lens driving device, an imaging device, and a mobile terminal.

Background

As technology advances, many electronic devices (e.g., tablet computers or smartphones) today are equipped with a lens module and have camera or video functionality. Lenses can be roughly classified into wide-angle lenses of short focal length and telescopic lenses of long focal length. However, placing a lens with a long focal length in the optical module increases the thickness of the electronic device, which is difficult to meet the requirement of the mobile terminal device for light weight, thin profile. In the prior art, periscope type design is generally adopted, namely, the light path is laid flat, and a turning mirror is added to rotate the light path by 90 degrees, so that the whole optical system is laid flat to reduce the whole height.

The existing periscope type lens driving device comprises a reflecting module (a prism motor) and a lens module (a periscope motor), wherein imaging light rays are reflected by the reflecting module by 90 degrees and then are incident into the lens module, and the lens module focuses and images. At present, the anti-shake scheme of periscope type module is responsible for the anti-shake in two directions respectively or jointly by reflection module and camera lens module, therefore camera lens focusing, anti-shake need reflection module and camera lens module cooperation drive accomplish, have two sets of motor equipment, the debugging degree of difficulty is big, and drive arrangement part article quantity is many, the design complicacy leads to structural dimension big, reliability not high scheduling problem.

Therefore, the periscope type lens module has the problem of poor anti-shake effect in the prior art.

Disclosure of utility model

The utility model mainly aims to provide a lens driving device, an imaging device and a mobile terminal, so as to solve the problem of poor anti-shake effect of a periscope type lens module in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a lens driving apparatus including a housing assembly having a receiving space, the lens driving apparatus further including: a prism support; the first limiting assembly is at least partially arranged on the prism support; the first limiting assembly and the second limiting assembly are sleeved and can rotate relative to the second limiting assembly, and the first limiting assembly can drive at least one part of the second limiting assembly to rotate relative to the shell assembly; the driving assembly, at least one part of the driving assembly is set up on the body assembly, at least another part of the driving assembly is set up on the prism support; when the driving assembly is electrified, the prism support can rotate around the X axis relative to at least one part of the first limiting assembly and/or the prism support can drive at least one part of the first limiting assembly and at least one part of the second limiting assembly to rotate around the Y axis relative to at least one other part of the second limiting assembly.

Further, the first limiting assembly comprises a first sliding shaft, two ends of the prism support are respectively connected with the first sliding shaft, the first sliding shaft penetrates through the second limiting assembly, and the prism support can rotate relative to the first sliding shaft.

Further, the second limiting assembly comprises a second sliding shaft, one end of the second sliding shaft is connected with the shell assembly, and the prism support can drive the first sliding shaft and the second sliding shaft to rotate relative to the shell assembly.

Further, the first limiting assembly further comprises at least two first shaft sleeves, at least one first shaft sleeve is sleeved at two ends of the at least first sliding shaft respectively, and two ends of the first sliding shaft are connected with the prism support through corresponding first shaft sleeves.

Further, the second limiting assembly further comprises at least one second sleeve, and the second sliding shaft is connected with the shell assembly through the second sleeve.

Further, the axis of the first sliding shaft is parallel to the X axis; and/or the axis of the second sliding shaft is parallel to the Y axis; and/or the first slide shaft is made of a ceramic material; and/or the second slide shaft is made of a ceramic material.

Further, the center of the joint of the first sliding shaft and the second sliding shaft coincides with the center of gravity of the prism support; and/or the diameter of the second slide shaft is larger than the diameter of the first slide shaft.

Further, the prism support is provided with the installation cavity corresponding to the first limiting component and the second limiting component, the first limiting component is arranged in the installation cavity, one end, connected with the first limiting component, of the second limiting component is arranged in the installation cavity, and a clearance is formed between the part, located in the installation cavity, of the second limiting component and the inner wall of the installation cavity.

Further, the inner wall of the mounting cavity is provided with a first mounting groove and a mounting notch communicated with the first mounting groove corresponding to the first shaft sleeve, the lens driving device further comprises a plurality of sealing blocks, and at least one sealing block is arranged in the mounting notch.

Further, the shell assembly is provided with a shaft sleeve boss corresponding to the second shaft sleeve, the shaft sleeve boss is provided with a second mounting groove for accommodating the second shaft sleeve, and the prism support is provided with an avoidance space corresponding to the shaft sleeve boss.

Further, the lens driving device further comprises at least two reset pieces symmetrically arranged about the second limiting assembly, one end of each reset piece is connected with the shell assembly, the other end of each reset piece is connected with the back plate of the prism support, reset force which moves towards the X axis and/or the Y axis and/or the Z axis is provided for the prism support, and the back plate of the prism support is parallel to the XY plane.

Further, the reset piece is provided with at least two elastic arms, at least one elastic arm is bent along the X-axis direction, and at least the other elastic arm is bent along the Y-axis direction.

Further, one ends of the two elastic arms are respectively connected with the shell component, and the other ends of the two elastic arms extend along the direction of approaching each other and are connected with the prism support, so that an included angle larger than zero degrees is formed between the two elastic arms.

Further, the driving component comprises at least two groups of driving magnets and driving coils which are matched with each other, one of the driving magnets and the driving coils is arranged on the prism bracket, the other is correspondingly arranged on the shell component, one group of driving magnets and driving coils in the two groups of driving magnets and driving coils are parallel to the XZ plane, and the other group of driving magnets and driving coils are parallel to the YZ plane.

Further, the driving assembly further comprises an FPC board, the driving magnet is arranged on the prism support, and the driving coil is arranged on the shell assembly through the FPC board and is electrically connected with the FPC board.

Further, the lens driving device further comprises at least one magnetic attraction piece, and the magnetic attraction piece is arranged on the bottom surface of the shell assembly or the FPC board corresponding to the driving magnet parallel to the XZ plane; or the lens driving device further comprises an adsorption magnet, the adsorption magnet is arranged at one end, far away from the first limiting assembly, of the second limiting assembly, and at least one other magnetic attraction piece is arranged on the bottom surface of the shell assembly or the FPC board in a corresponding adsorption magnet mode.

Further, the lens driving device further comprises at least one magnetic attraction piece, and the magnetic attraction piece is arranged on the backboard of the shell assembly corresponding to the driving magnet parallel to the XZ plane.

Further, an elastic buffer material is filled between the mounting cavity of the prism support and the first limiting component; and/or the lens driving device further comprises at least two limit springs symmetrically arranged about the second limit assembly, wherein the limit springs are arranged between the bottom plate of the prism support and the bottom surface of the shell assembly and are respectively connected with the prism support and the shell assembly.

Further, at least one impact boss is arranged at the top and the bottom of the prism support in the Y-axis direction respectively, and different avoidance grooves are formed in the shell component corresponding to different impact bosses.

Further, the back plate of the prism support is provided with at least one first dispensing groove, and the circumferential side wall of the shell assembly is provided with at least one second dispensing groove corresponding to the first dispensing groove.

According to another aspect of the present utility model, there is provided an image pickup apparatus including the lens driving apparatus described above.

According to another aspect of the present utility model, there is provided a mobile terminal including the above-described image pickup apparatus.

By applying the technical scheme of the utility model, the lens driving device comprises a shell component, wherein the shell component is provided with a containing space, and the lens driving device also comprises a prism support, a first limiting component, a second limiting component and a driving component which are arranged in the containing space. At least one part of the first limiting component is arranged on the prism support; the first limiting assembly and the second limiting assembly are sleeved and can rotate relative to the second limiting assembly, and the first limiting assembly can drive at least one part of the second limiting assembly to rotate relative to at least one other part of the second limiting assembly; at least one part of the driving component is arranged on the shell component, and at least another part of the driving component is arranged on the prism support; when the driving assembly is electrified, the prism support can rotate around the X axis relative to at least one part of the first limiting assembly and/or the prism support can drive at least one part of the first limiting assembly and the second limiting assembly to rotate around the Y axis relative to the shell assembly.

When the lens driving device is used, the lens driving device is provided with the first limiting component and the second limiting component, and after the driving component is electrified, the prism support can rotate around the X axis relative to at least one part of the first limiting component and can drive at least one part of the first limiting component and the second limiting component to rotate around the Y axis relative to the shell component, so that the prism support can drive the prism to realize anti-shake driving of the periscope type lens after the driving component is electrified. Meanwhile, since the anti-shake driving is realized through the movement of the prism support, compared with the anti-shake driving mode in the prior art, the anti-shake driving of the lens driving device does not need the matching of the lens modules in the periscope type lens any more, thereby effectively reducing the assembling and debugging difficulties, being more beneficial to the miniaturization design and improving the running reliability. Therefore, the lens driving device effectively solves the problem of poor anti-shake effect of the periscope type lens module in the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

Fig. 1 is a schematic view showing the structure of a lens driving apparatus according to an embodiment of the present utility model;

fig. 2 shows an exploded view of the lens driving apparatus of fig. 1;

FIG. 3 is a schematic diagram showing the positional relationship among the prism support, the sealing block, the first limiting assembly and the second limiting assembly of the lens driving device in FIG. 1;

FIG. 4 is a schematic diagram showing the positional relationship among the prism holder, the driving coil and the reset member of the lens driving device in FIG. 1;

FIG. 5 is a schematic diagram showing the positional relationship among the prism holder, the reset member, the driving magnet and the magnet sheet of the lens driving device in FIG. 1;

FIG. 6 is a schematic diagram showing the positional relationship of the housing assembly of the lens driving apparatus of FIG. 1;

fig. 7 is a schematic diagram showing a positional relationship of a prism holder of the lens driving apparatus of fig. 1.

Wherein the above figures include the following reference numerals:

10. A housing assembly; 11. a front cover; 12. a boss of the shaft sleeve; 121. a second mounting groove; 13. avoiding the groove; 14. a second dispensing slot; 20. a prism support; 21. a mounting cavity; 211. a first mounting groove; 212. a mounting notch; 22. striking the boss; 23. a first dispensing slot; 30. a first limit assembly; 31. a first slide shaft; 32. a first sleeve; 40. the second limiting component; 41. a second slide shaft; 42. a second sleeve; 50. a drive assembly; 51. driving a magnet; 52. a driving coil; 53. an FPC board; 60. a sealing block; 70. a reset member; 71. an elastic arm; 80. a magnetic attraction piece; 90. a prism; 100. and a limit spring.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

The application provides a lens driving device, an imaging device and a mobile terminal, which aim to solve the problem of poor anti-shake effect of periscopic lens modules in the prior art.

The image pickup apparatus of the present application includes a lens driving apparatus described below, and the mobile terminal of the present application may be a mobile phone, a tablet pc, a notebook computer, or the like having the image pickup apparatus of the present application.

As shown in fig. 1 to 7, the lens driving device of the present application includes a housing assembly 10, the housing assembly 10 having a receiving space, and the lens driving device further includes a prism support 20, a first limiting assembly 30, a second limiting assembly 40 and a driving assembly 50 disposed inside the receiving space. At least a portion of the first spacing assembly 30 is disposed on the prism support 20; one end of the second limiting assembly 40 is connected with the shell assembly 10, the first limiting assembly 30 and the second limiting assembly 40 are sleeved and can rotate relative to the second limiting assembly 40, and the first limiting assembly 30 can drive at least one part of the second limiting assembly 40 to rotate relative to at least one other part of the second limiting assembly 40 or relative to the shell assembly; at least a portion of the drive assembly 50 is disposed on the housing assembly 10 and at least another portion of the drive assembly 50 is disposed on the prism support 20; when the driving assembly 50 is powered on, the prism support 20 can rotate around the X-axis relative to at least a portion of the first limiting assembly 30 and/or the prism support 20 can drive at least a portion of the first limiting assembly 30 and the second limiting assembly 40 to rotate around the Y-axis relative to at least another portion of the second limiting assembly 40.

When the lens driving device of the present application is used, the lens driving device has the first limiting component 30 and the second limiting component 40, and when the driving component 50 is powered on, the prism support 20 can rotate around the X axis relative to at least a portion of the first limiting component 30, and the prism support 20 can drive at least a portion of the first limiting component 30 and the second limiting component 40 to rotate around the Y axis relative to at least another portion of the second limiting component 40 or relative to the housing component, so that after the driving component 50 is powered on, the prism support 20 can drive the prism to realize anti-shake driving of the periscope lens. Meanwhile, since the anti-shake driving is realized through the movement of the prism support 20, compared with the anti-shake driving mode in the prior art, the anti-shake driving of the lens driving device in the application does not need the matching of the lens modules in the periscope lens any more, thereby effectively reducing the assembly and debugging difficulties, being more beneficial to the miniaturization design and improving the running reliability. Therefore, the lens driving device effectively solves the problem of poor anti-shake effect of the periscope type lens module in the prior art.

Also, the prism holder in the present application is used for placing the prism 90.

In one embodiment of the present application, the first limiting assembly 30 includes a first sliding shaft 31, two ends of the prism support 20 are respectively connected to the first sliding shaft 31, the first sliding shaft 31 passes through the second limiting assembly 40, and the prism support 20 can rotate relative to the first sliding shaft 31. The second limiting assembly 40 includes a second sliding shaft 41, one end of the second sliding shaft 41 is connected with the housing assembly 10, and the prism support 20 can drive the first sliding shaft 31 and the second sliding shaft 41 to rotate relative to the housing assembly 10. And, the first sliding shaft 31 passes through the second sliding shaft 41 to ensure that the first sliding shaft 31 can drive the second sliding shaft 41 to rotate. The arrangement can limit the movement direction of the prism support 20 through the first sliding shaft 31 respectively, and limit the movement directions of the prism support 20 and the first sliding shaft 31 through the second sliding shaft 41, so that the movement accuracy of the prism support 20 can be effectively ensured while the anti-shake movement of the prism support 20 is ensured.

Preferably, the first limiting assembly 30 further includes at least two first shaft sleeves 32, at least one first shaft sleeve 32 is sleeved at two ends of the first sliding shaft 31, and two ends of the first sliding shaft 31 are connected with the prism support 20 through corresponding first shaft sleeves 32. And, the second limiting assembly 40 further comprises at least one second sleeve 42, and the second sliding shaft 41 is connected with the housing assembly 10 through the second sleeve 42. Through setting up first axle sleeve 32, can guarantee that prism support 20 when rotating relative first axle sleeve 32, through the rotation of first axle sleeve 32 relative first slide shaft 31, reduce the frictional force between prism support 20 and the first slide shaft 31 effectively, improve assembly precision and structural strength. By arranging the second sleeve 42, it can be ensured that when the prism support 20 drives the second sliding shaft 41 to rotate through the first sliding shaft 31, the friction force between the second sliding shaft 41 and the housing assembly 10 is effectively reduced, and the assembly precision and the structural strength are improved.

Optionally, the axis of the first slide shaft 31 is parallel to the X-axis. The axis of the second slide shaft 41 is parallel to the Y axis. By this arrangement, the limiting effect of the first slide shaft 31 and the second slide shaft 41 on the movement of the prism holder 20 can be effectively ensured.

Therefore, by arranging the first sliding shaft 31 and the second sliding shaft 41 in the application, the prism support 20 can be ensured to form two-shaft rotation driving by using the first sliding shaft 31 and the second sliding shaft 41 which are vertically arranged, so that the 'nodding' and 'shaking' of the prism support 20 are realized, and the anti-shake performance of the prism motor is further realized. Compared with a ball bearing, the application has stable directivity by using a sliding shaft driving mode, and further has higher anti-shake compensation precision.

Alternatively, the first slide shaft 31 is made of a ceramic material. And, the second slide shaft 41 is made of a ceramic material. By doing so, the friction force between the first slide shaft 31 and the second slide shaft 41 can be further effectively reduced, thereby ensuring the driving effect of the lens driving device.

Alternatively, the first sleeve 32 and the second sleeve 42 may be made of a metal composite material. Of course, other materials may be selected as the materials for manufacturing the first sleeve 32 and the second sleeve 42 according to actual use.

Alternatively, the center of the junction of the first slide shaft 31 and the second slide shaft 41 coincides with the center of gravity of the prism holder 20. Through such arrangement, the stability of the prism support 20 when the second sliding shaft 41 is driven to rotate by the first sliding shaft 31 can be effectively ensured, and the prism support 20 can be effectively ensured not to deviate in movement, so that the anti-shake movement effect of the prism support 20 and the imaging effect of the imaging device are ensured.

Alternatively, the diameter of the second slide shaft 41 is larger than the diameter of the first slide shaft 31. In the application, the prism support 20 drives the second slide shaft 41 to rotate through the first slide shaft 31, so that the use strength of the second slide shaft 41 can be effectively ensured through the arrangement, and the performance stability of the lens driving device is further ensured.

Specifically, the prism support 20 is provided with an installation cavity 21 corresponding to the first limiting component 30 and the second limiting component 40, the first limiting component 30 is arranged in the installation cavity 21, one end, connected with the first limiting component 30, of the second limiting component 40 is arranged in the installation cavity 21, and a clearance is reserved between the part, located in the installation cavity 21, of the second limiting component 40 and the inner wall of the installation cavity 21. Through setting up installation cavity 21, not only can guarantee effectively that the position overall arrangement between prism support 20, first spacing subassembly 30 and the spacing subassembly 40 of second is compacter, be favorable to lens drive arrangement's miniaturized design, but also can avoid prism support 20 and the spacing subassembly 40 of second's second slide shaft 41 to produce the contact through setting up installation cavity 21 effectively, and then guaranteed that the motion of prism support 20 is more smooth and easy.

Optionally, the inner wall of the mounting cavity 21 is provided with a first mounting groove 211 corresponding to the first shaft sleeve 32 and a mounting notch 212 communicated with the first mounting groove 211, and the lens driving device further includes a plurality of sealing blocks 60, and at least one sealing block 60 is provided in the mounting notch 212. Through such arrangement, when the first limiting assembly 30 is installed, the sealing block 60 can be detached first, and then after the first limiting assembly 30 is installed in place, the sealing block 60 is installed to the installation notch 212, so that detachment of the first limiting assembly 30 is ensured. Therefore, providing the mounting notch 212 and the sealing block 60 in the present application can facilitate the mounting of the first spacing assembly 30. In addition, before the first limiting assembly 30 is installed, the first mounting groove 211 may be first subjected to a dispensing operation, so as to ensure the stability of the connection between the prism support 20 and the first shaft sleeve 32.

Optionally, the housing assembly 10 is provided with a boss 12 corresponding to the second boss 42, the boss 12 has a second mounting groove 121 for receiving the second boss 42, and the prism support 20 is provided with a relief space corresponding to the boss 12. By providing the boss 12 and the second mounting groove 121, the stability of the second slide shaft 41 in rotation with respect to the housing assembly 10 can be ensured.

In the present application, after the prism support 20 is connected by the first sliding shaft 31 and the second sliding shaft 41, the first sliding shaft 31 may slide along the axis of the first sliding shaft 31 relative to the second sliding shaft 41, and in the driving process of the driving assembly 50 on the prism support 20, the prism support 20 is affected by external force impact, different postures or rapid movement, if the center of gravity of the prism support 20 is unstable, the rotation driving and the structural stability of the two shafts are greatly disturbed, and the product performance is affected. It is therefore necessary to limit the degrees of freedom of the prism holder 20 in the X, Y, and Z axes so that the center of gravity of the prism holder 20 is balanced with the center symmetry point of the slide shaft assembly. Also, the prism holder 20 may be restricted using spring pre-compression in the present application. Or the magnetic force of the magnetic attraction sheet and the magnetic member, the magnetic attraction sheet and the magnetic member in the driving assembly 50, restricts the prism holder 20.

In one embodiment of the present application, the lens driving apparatus further includes at least two restoring members 70 symmetrically disposed about the second limiting assembly 40, one end of each restoring member 70 is connected to the housing assembly 10, the other end of each restoring member 70 is connected to the back plate of the prism support 20 to provide restoring forces to the prism support 20 toward the X-axis, the Y-axis, and the Z-axis, and the back plate of the prism support 20 is parallel to the XY-plane. That is, in the present application, by providing the reset member 70, the degree of freedom of the prism holder 20 can be limited in the X-axis, Y-axis, and Z-axis so that the center of gravity of the prism holder 20 is maintained in a balanced state with the center symmetry point of the slide shaft assembly.

Specifically, the restoring member 70 has at least two elastic arms 71, at least one elastic arm 71 being bent in the X-axis direction and at least the other elastic arm being bent in the Y-axis direction. That is, when the restoring member 70 in the present embodiment is used to limit the degree of freedom of the prism holder 20, the restoring member 70 may be pressed in the Z-axis direction and the two elastic arms 71 may be respectively pressed in the X-axis direction and the Y-axis direction, so that the restoring member 70 may provide restoring force to the prism holder 20 toward the X-axis, the Y-axis, and the Z-axis movements.

Alternatively, one ends of the two elastic arms 71 are respectively connected to the housing assembly 10, and the other ends of the two elastic arms 71 extend in directions approaching each other and are connected to the prism support 20 such that an angle greater than zero degrees is formed between the two elastic arms 71. Of course, other configurations of the restoring member 70 are possible in the present application, so long as the restoring member 70 is capable of providing restoring force to the prism support 20 in the directions of the X-axis, the Y-axis, and the Z-axis. Likewise, the number of return members 70 and the number of resilient arms 71 of return members 70 are not limited in the present application, and may be adjusted accordingly depending on the particular application and application requirements.

Optionally, the driving assembly 50 includes at least two sets of mutually matched driving magnets 51 and driving coils 52, one of the driving magnets 51 and the driving coils 52 is disposed on the prism support 20, the other is correspondingly disposed on the housing assembly 10, one set of driving magnets 51 and driving coils 52 of the two sets of driving magnets 51 and driving coils 52 is parallel to the XZ plane, and the other set of driving magnets 51 and driving coils 52 is parallel to the YZ plane.

In one embodiment of the present application, the driving assembly 50 further includes an FPC board 53, the driving magnet 51 is disposed on the prism support 20, and the driving coil 52 is disposed on the housing assembly 10 through the FPC board 53 corresponding to the driving magnet 51 and is electrically connected to the FPC board 53. The driving magnets 51 and the driving coils 52 are three groups, one driving magnet 51 is arranged on one side plate parallel to the YZ plane of the prism support 20, a position detecting element is arranged in a space surrounded by the driving coils 52 corresponding to the driving magnet 51, the other two driving magnets 51 are symmetrically arranged on a bottom plate parallel to the XZ plane of the prism support 20 about the second limiting assembly 40, and a position detecting element is arranged in a space surrounded by one driving coil 52 of the two driving coils 52 corresponding to the two driving magnets 51. Alternatively, the position detecting member may be a hall chip, and the hall chip is electrically connected with the FPC board 53.

Optionally, the lens driving device further comprises at least one magnetic attraction piece, wherein the magnetic attraction piece is arranged on the bottom surface of the shell assembly or the FPC board corresponding to the driving magnet parallel to the XZ plane; or the lens driving device further comprises an adsorption magnet, the adsorption magnet is arranged at one end, far away from the first limiting assembly, of the second limiting assembly, and at least one other magnetic attraction piece is arranged on the bottom surface of the shell assembly or the FPC board in a corresponding adsorption magnet mode.

Optionally, the lens driving device further includes at least one magnetic attraction piece, and the magnetic attraction piece is disposed on the back plate of the housing assembly corresponding to the driving magnet parallel to the XZ plane.

In a specific embodiment of the present application, the lens driving device further includes a plurality of magnetic attraction pieces 80, and at least one magnetic attraction piece 80 is disposed on the back plate of the housing assembly 10 corresponding to the driving magnet 51 parallel to the XZ plane. By such arrangement, the spacing force in the Z-axis direction can be provided to the prism holder 20 by the interaction of the magnetic attraction sheet 80 and the driving magnet 51. Thereby ensuring the stability of the prism support 20 in the Z-axis direction. At least one other magnetic attraction piece 80 is arranged on the bottom surface of the shell assembly 10 or the FPC board 53 corresponding to the driving magnet 51 parallel to the XZ plane; or the lens driving device further comprises an adsorption magnet, the adsorption magnet is arranged at one end of the second limiting component 40 away from the first limiting component 30, and at least one other magnetic attraction piece 80 is correspondingly arranged on the bottom surface of the shell component 10 or the FPC board 53. Both of the above modes can provide a limit force in the Y-axis direction to the prism support 20. Thereby ensuring the stability of the prism support 20 in the Y-axis direction.

In the present application, the magnetic sheet 80 is provided corresponding to the driving magnet 51 or the attracting magnet, but the magnetic sheet 80 is not required to be aligned with the corresponding driving magnet 51 or the attracting magnet, and it is only required to ensure that the magnetic sheet 80 and the corresponding driving magnet 51 or the attracting magnet can generate a biasing force. And, can also make the adaptive regulation to the position of the magnetic piece 80 according to actual use demand.

Optionally, an elastic buffer material is filled between the mounting cavity 21 of the prism support 20 and the first limiting assembly 30. The elastic cushioning material in the present application may be a silicone rubber or a rubber ring. By providing the elastic buffer material, the horizontal shake of the second slide shaft 41 in the X-axis direction can be reduced, and the shock can be buffered.

Optionally, the lens driving device further includes at least two limiting springs 100 symmetrically disposed about the second limiting assembly 40, and the limiting springs 100 are disposed between the bottom plate of the prism support 20 and the bottom surface of the housing assembly 10 and connected to the prism support 20 and the housing assembly 10, respectively. The limiting spring 100 can provide a certain limiting effect for the prism support 20, so that the prism support 20 can be prevented from overturning under the action of the magnetic attraction sheet 80 and the driving magnet 51 or the attraction magnet or separating the second limiting assembly 40 from the second sleeve 42 under different postures.

Optionally, at least one impact boss 22 is disposed at the top and bottom of the prism support 20 in the Y-axis direction, and different avoidance grooves 13 are disposed on the housing assembly 10 corresponding to different impact bosses 22. The movement of the prism support 20 can be further limited by the mutual cooperation of the impact boss 22 and the avoidance groove 13.

Optionally, the back plate of the prism support 20 has at least one first dispensing slot 23, and the circumferential side wall of the housing assembly 10 is provided with at least one second dispensing slot 14 corresponding to the first dispensing slot 23. Through setting up first point and glue groove 23 and second point and glue groove 14, can be through the mode that adds damping glue between first point and glue groove 23 and second point and glue groove 14 and realize the elastic connection between prism support 20 and the casing subassembly 10 to play the effect of bradyseism through damping glue, reduce the impact of prism support 20 to casing subassembly 10 simultaneously, improve lens drive arrangement's overall stability. Also, the case assembly 10 may include a case body and a front cover 11 in the present application, and the front cover 11 has a second dispensing groove 14. Meanwhile, the front cover 11 may be provided with a relief groove corresponding to the reset member 70 and a positioning groove for mounting the magnetic sheet 80. And the front cover 11 is opposite to and parallel to the back plate of the prism support 20.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

1. The problem of poor anti-shake effect of the periscope type lens module in the prior art is effectively solved;

2. Simple structure, stable performance.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (22)

1. A lens driving device, characterized by comprising a housing assembly (10), the housing assembly (10) having a receiving space, the lens driving device further comprising a lens housing disposed inside the receiving space:

a prism holder (20);

a first spacing assembly (30), at least a portion of the first spacing assembly (30) being disposed on the prism support (20);

the second limiting assembly (40), the second limiting assembly (40) is connected with the shell assembly (10), the first limiting assembly (30) is sleeved with the second limiting assembly (40) and can rotate relative to the second limiting assembly (40), and the first limiting assembly (30) can drive at least one part of the second limiting assembly (40) to rotate relative to the shell assembly (10);

-a drive assembly (50), at least a portion of the drive assembly (50) being disposed on the housing assembly (10), at least another portion of the drive assembly (50) being disposed on the prism support (20);

when the driving assembly (50) is electrified, the prism support (20) can rotate around the X axis relative to at least one part of the first limiting assembly (30) and/or the prism support (20) can drive at least one part of the first limiting assembly (30) and the second limiting assembly (40) to rotate around the Y axis relative to the shell assembly (10).

2. The lens driving device according to claim 1, wherein the first limiting assembly (30) includes a first sliding shaft (31), two ends of the prism support (20) are respectively connected with the first sliding shaft (31), the first sliding shaft (31) passes through the second limiting assembly (40), and the prism support (20) can rotate relative to the first sliding shaft (31).

3. The lens driving device according to claim 2, wherein the second limiting assembly (40) includes a second sliding shaft (41), one end of the second sliding shaft (41) is connected with the housing assembly (10), and the prism support (20) can drive the first sliding shaft (31) and the second sliding shaft (41) to rotate relative to the housing assembly (10).

4. The lens driving device according to claim 2, wherein the first limiting assembly (30) further comprises at least two first shaft sleeves (32), at least one first shaft sleeve (32) is respectively sleeved at two ends of the first sliding shaft (31), and two ends of the first sliding shaft (31) are connected with the prism support (20) through the corresponding first shaft sleeves (32).

5. A lens driving device according to claim 3, wherein the second limiting assembly (40) further comprises at least one second sleeve (42), the second slide shaft (41) being connected to the housing assembly (10) via the second sleeve (42).

6. A lens driving apparatus according to claim 3, wherein,

The axis of the first sliding shaft (31) is parallel to the X axis; and/or

The axis of the second sliding shaft (41) is parallel to the Y axis; and/or

The first sliding shaft (31) is made of ceramic material; and/or

The second slide shaft (41) is made of a ceramic material.

7. A lens driving apparatus according to claim 3, wherein,

The center of the joint of the first sliding shaft (31) and the second sliding shaft (41) coincides with the center of gravity of the prism support (20); and/or

The diameter of the second sliding shaft (41) is larger than that of the first sliding shaft (31).

8. The lens driving device according to claim 4, wherein the prism holder (20) is provided with a mounting cavity (21) corresponding to the first limiting component (30) and the second limiting component (40), the first limiting component (30) is disposed inside the mounting cavity (21), one end of the second limiting component (40) connected with the first limiting component (30) is disposed in the mounting cavity (21), and a clearance is provided between a portion of the second limiting component (40) located in the mounting cavity (21) and an inner wall of the mounting cavity (21).

9. The lens driving device according to claim 8, wherein the inner wall of the mounting cavity (21) is provided with a first mounting groove (211) and a mounting gap (212) communicating with the first mounting groove (211) corresponding to the first shaft sleeve (32), the lens driving device further comprises a plurality of sealing blocks (60), and at least one sealing block (60) is provided in the mounting gap (212).

10. The lens driving apparatus according to claim 5, wherein the housing assembly (10) is provided with a boss (12) corresponding to the second boss (42), the boss (12) has a second mounting groove (121) for receiving the second boss (42), and the prism holder (20) is provided with a relief space corresponding to the boss (12).

11. Lens driving device according to any one of claims 1 to 10, further comprising at least two restoring members (70) symmetrically arranged about the second limiting assembly (40), one end of the restoring member (70) being connected with the housing assembly (10), the other end of the restoring member (70) being connected with the back plate of the prism holder (20) to provide the prism holder (20) with a restoring force moving towards the X-axis and/or the Y-axis and/or the Z-axis, and the back plate of the prism holder (20) being parallel to the XY-plane.

12. The lens driving apparatus according to claim 11, wherein the restoring member (70) has at least two elastic arms (71), at least one of the elastic arms (71) is bent in the X-axis direction, and at least another of the elastic arms (71) is bent in the Y-axis direction.

13. Lens driving device according to claim 12, characterized in that one end of each of the two elastic arms (71) is connected to the housing assembly (10), and the other ends of the two elastic arms (71) extend in directions approaching each other and are connected to the prism holder (20) such that an angle larger than zero degrees is formed between the two elastic arms (71).

14. The lens driving device according to any one of claims 1 to 10, wherein the driving assembly (50) includes at least two sets of mutually cooperating driving magnets (51) and driving coils (52), one of the driving magnets (51) and the driving coils (52) is provided on the prism holder (20), the other is provided on the housing assembly (10), and one set of the driving magnets (51) and the driving coils (52) of the two sets of the driving magnets (51) and the driving coils (52) is parallel to an XZ plane, and the other set of the driving magnets (51) and the driving coils (52) is parallel to a YZ plane.

15. The lens driving apparatus according to claim 14, wherein the driving assembly (50) further includes an FPC board (53), the driving magnet (51) is disposed on the prism holder (20), and the driving coil (52) is disposed on the housing assembly (10) through the FPC board (53) in correspondence with the driving magnet (51) and electrically connected with the FPC board (53).

16. The lens driving apparatus according to claim 15, further comprising at least one magnetic attraction sheet (80),

The magnetic attraction piece (80) is arranged on the bottom surface of the shell assembly (10) or the FPC board (53) corresponding to the driving magnet (51) parallel to the XZ plane; or alternatively

The lens driving device further comprises an adsorption magnet, the adsorption magnet is arranged at one end, far away from the first limiting component (30), of the second limiting component (40), and at least one other magnetic attraction piece (80) is arranged on the bottom surface of the shell component (10) or the FPC board (53) corresponding to the adsorption magnet.

17. Lens driving device according to claim 15, further comprising at least one magnetic attraction piece (80), said magnetic attraction piece (80) being arranged on a back plate of the housing assembly (10) corresponding to the driving magnet (51) parallel to the XZ plane.

18. The lens driving apparatus according to any one of claims 1 to 10, wherein,

An elastic buffer material is filled between the mounting cavity (21) of the prism support (20) and the first limiting component (30); and/or

The lens driving device further comprises at least two limiting springs (100) symmetrically arranged relative to the second limiting assembly (40), wherein the limiting springs (100) are arranged between the bottom plate of the prism support (20) and the bottom surface of the shell assembly (10) and are respectively connected with the prism support (20) and the shell assembly (10).

19. Lens driving device according to any one of claims 1 to 10, characterized in that the prism holder (20) is provided with at least one impact boss (22) at the top and bottom in the Y-axis direction, respectively, and the housing assembly (10) is provided with different relief grooves (13) for different impact bosses (22).

20. Lens driving device according to any one of claims 1 to 10, characterized in that the back plate of the prism holder (20) has at least one first glue dispensing slot (23), and that the circumferential side wall of the housing assembly (10) is provided with at least one second glue dispensing slot (14) corresponding to the first glue dispensing slot (23).

21. An image pickup apparatus comprising the lens driving apparatus according to any one of claims 1 to 20.

22. A mobile terminal comprising the image pickup device according to claim 21.