Reflection element driving device, imaging device, and mobile terminal

Abstract

This invention provides a reflective element driving device, a camera device, and a mobile terminal. The reflective element driving device includes a housing assembly, and further includes: a prism support disposed within an accommodating space; the prism support is movably mounted on a rotating base assembly; at least a portion of a first limiting component is disposed on the rotating base assembly, and at least another portion of the first limiting component is disposed on the prism support; at least a portion of a second limiting component is disposed on the housing assembly, and at least another portion of the second limiting component is disposed on the rotating base assembly; at least a portion of a first driving component is disposed on the prism support, and at least a portion of the first driving component is disposed on the rotating base assembly; at least a portion of the second driving component is disposed on the rotating base assembly, and at least another portion of the second driving component is disposed on the housing assembly. This invention solves the problem of poor performance in existing periscope lens modules.

Description

Technical Field

[0001] This invention relates to the field of optical lens equipment, and more specifically, to a reflective element driving device, a camera device, and a mobile terminal. Background Technology

[0002] With technological advancements, many electronic devices today (such as tablets or smartphones) are equipped with lens modules and feature cameras or video capabilities. Lenses can be broadly categorized into wide-angle lenses with short focal lengths and telephoto lenses with long focal lengths; however, placing a long focal length lens within the optical module increases the thickness of the electronic device, making it difficult to meet the demands for thinness and lightness in mobile devices. Existing technologies typically employ a periscope design, which involves laying the optical path flat and using a folding mirror to rotate the optical path by 90 degrees, thus flattening the entire optical system and reducing its overall height.

[0003] The periscope reflector drive device consists of two parts: a reflector module (prism motor) and a lens module (periscope motor). The reflector module reflects the imaging light 90° before it enters the lens module, which then enables the camera module to focus and zoom. Existing prism motors all use ball bearings for multi-axis image stabilization. Ball bearings have low friction, good driving performance, and are the most widely used, but they have several problems: firstly, the ball bearing support surface is small, resulting in low reliability under external impact, especially as the prism weight increases; secondly, the directional control of the ball bearing image stabilization drive is difficult.

[0004] Therefore, existing technologies suffer from poor performance of periscope lens modules. Summary of the Invention

[0005] The main objective of this invention is to provide a reflective element driving device, a camera device, and a mobile terminal to solve the problem of poor performance of periscope lens modules in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a reflective element driving device is provided, comprising a housing assembly having a receiving space, the reflective element driving device further comprising: a prism support disposed within the receiving space; a rotating seat assembly, the prism support movably disposed on the rotating seat assembly; a first limiting assembly, at least a portion of the first limiting assembly being disposed on the rotating seat assembly, and at least another portion of the first limiting assembly being disposed on the prism support; a second limiting assembly, at least a portion of the second limiting assembly being disposed on the housing assembly, and at least another portion of the second limiting assembly being disposed on the rotating seat assembly; and a first driving assembly. At least a portion of the first driving component is disposed on the prism bracket, and at least a portion of the first driving component is disposed on the rotary seat assembly. When the first driving component is powered on, the prism bracket assembly can drive at least a portion of the first limiting component to rotate relative to the rotary seat assembly around the X-axis. The second driving component is disposed at least a portion on the rotary seat assembly, and at least another portion of the second driving component is disposed on the housing assembly. When the second driving component is powered on, the rotary seat assembly can drive the portions of the prism bracket, the first limiting component, the first driving component, and the second limiting component disposed on the rotary seat assembly to rotate relative to the housing assembly around the Y-axis.

[0007] Furthermore, the rotating seat assembly has an installation space, within which at least a portion of the prism support is disposed.

[0008] Furthermore, the first limiting component includes: a sliding shaft, at least a portion of which is disposed inside the prism bracket, and both ends of the sliding shaft extending out of the prism bracket; and at least two bushings, which are disposed on the rotating seat assembly, and both ends of the sliding shaft are rotatably connected to at least one bushing respectively.

[0009] Furthermore, the axis of the slide shaft is parallel to the X-axis.

[0010] Furthermore, the reflective element driving device also includes a first magnet and a second magnet, which are respectively disposed on the rotating seat assembly corresponding to the prism bracket. The plane of the first magnet is parallel to the YZ plane, and the plane of the second magnet is parallel to the XZ plane. The prism bracket is internally embedded with a first adsorption frame that cooperates with the first magnet and the second magnet; and / or the outer surface of the prism bracket is provided with a first magnetic absorbing piece that cooperates with the first magnet and a second magnetic absorbing piece that cooperates with the second magnet.

[0011] Furthermore, the first magnet is positioned close to one of the bushings, and the sliding shaft has a tapered structure at least at one end near the first magnet.

[0012] Furthermore, the bushing is provided with a V-shaped hole corresponding to the tapered structure of the sliding shaft. The upper part of the V-shaped hole is semi-circular, and the lower part of the V-shaped hole is V-shaped.

[0013] Furthermore, the rotary seat assembly is provided with a first reinforcing plate corresponding to at least one bushing. The first reinforcing plate is embedded inside the rotary seat assembly, and the first reinforcing plate is close to the side of the bushing away from the other bushing.

[0014] Furthermore, the second limiting component includes: a support base, of which there are two support bases, each support base having a rotating groove, one support base being disposed on the bottom surface of the housing assembly, and the other support base being disposed opposite to the rotating seat assembly, with the rotating grooves of the two support bases being disposed opposite to each other; and a first ball bearing, at least a portion of the first ball bearing being disposed in the rotating groove of one of the support bases, and at least another portion of the first ball bearing being disposed in the rotating groove of the other support base.

[0015] Furthermore, there is a rotational clearance between the two supports.

[0016] Furthermore, the interior of the housing assembly and the interior of the rotating seat assembly are respectively provided with second reinforcing plates corresponding to the support base.

[0017] Furthermore, the second limiting component also includes a second ball bearing. The rotating seat component has at least one mounting groove on the side facing the housing component. Each mounting groove contains at least one second ball bearing, and at least a portion of the second ball bearing extends out of the mounting groove and rolls in contact with the bottom surface of the housing component.

[0018] Furthermore, there are two second balls, and the two second balls are equidistant from the first ball. The housing assembly includes: a base plate, one of which is a support seat disposed on the base plate; a vertical plate, which is erected on the base plate and parallel to the XY plane, and the two second balls roll in contact with the end of the base plate near the vertical plate; and two oppositely disposed side plates, which are erected on the base plate and respectively disposed at both ends of the vertical plate, and are parallel to the YZ plane.

[0019] Furthermore, the reflective element driving device also includes a plurality of third magnets, which are arranged circumferentially around the support base on the base plate, and a second adsorption frame that cooperates with the third magnets is embedded inside the rotating base assembly.

[0020] Furthermore, there are three third magnets, and the resultant force of the magnetic attraction of the three third magnets to the rotating seat assembly coincides with the center of the triangle formed by the first ball and the second ball.

[0021] Furthermore, the reflective element driving device also includes at least two bottom magnetic clasps and at least two bottom magnets. The two bottom magnetic clasps are respectively disposed at both ends of the base plate in the X-axis direction, and the two bottom magnets are respectively disposed on the rotating base assembly corresponding to the two bottom magnetic clasps.

[0022] Furthermore, the first driving assembly includes a set of first driving magnets and first driving coils arranged opposite to each other. The first driving magnets are disposed on the side wall opposite to the upright plate of the prism bracket and the housing assembly, and the first driving coils are disposed on the rotating base assembly corresponding to the first driving magnets. The second driving assembly includes two second driving magnets and two second driving coils. The two second driving coils are respectively disposed on the two side plates of the housing assembly, and the two second driving magnets are respectively disposed on the rotating base assembly corresponding to the two second driving coils.

[0023] Furthermore, the reflective element driving device also includes an FPC board, which comprises a first mounting section, a rocker arm section, and a second mounting section connected in sequence. The first mounting section is disposed on the housing assembly and electrically connected to the second drive coil, and the second mounting section is disposed on the rotary seat assembly and electrically connected to the first drive coil.

[0024] Furthermore, the reflective element driving device also includes: at least two first springs, with at least one first spring respectively provided at both ends of the top surface of the rotating seat assembly in the X-axis direction, one end of the first spring being connected to the rotating seat assembly and the other end of the first spring being connected to the prism bracket; and at least two second springs, with at least one second spring respectively provided at the end of the two side plates of the housing assembly away from the upright plate of the housing assembly, one end of the second spring being connected to the side plate and the other end of the second spring being connected to the rotating seat assembly.

[0025] According to another aspect of the present invention, a camera device is provided, including the above-described reflective element driving device.

[0026] According to another aspect of the present invention, a mobile terminal is provided, including the above-described camera device.

[0027] Applying the technical solution of the present invention, the reflective element driving device in this application includes a housing assembly, the housing assembly having an accommodating space, and the reflective element driving device further includes a prism bracket, a rotating seat assembly, a first limiting assembly, a second limiting assembly, a first driving assembly, and a second driving assembly disposed inside the accommodating space. A prism support is movably mounted on a rotating base assembly; at least a portion of a first limiting component is mounted on the rotating base assembly, and at least another portion of the first limiting component is mounted on the prism support; at least a portion of a second limiting component is mounted on a housing assembly, and at least another portion of the second limiting component is mounted on the rotating base assembly; at least a portion of a first driving component is mounted on the prism support, and at least a portion of the first driving component is mounted on the rotating base assembly. When the first driving component is energized, the prism support assembly can drive at least a portion of the first limiting component to rotate relative to the rotating base assembly around the X-axis; at least a portion of a second driving component is mounted on the rotating base assembly, and at least another portion of the second driving component is mounted on the housing assembly. When the second driving component is energized, the rotating base assembly can drive the portions of the prism support, the first limiting component, the first driving component, and the second limiting component mounted on the rotating base assembly to rotate relative to the housing assembly around the Y-axis.

[0028] When using the reflective element driving device of this application, since the reflective element driving device has a first limiting component and a second limiting component, and when the first driving component is energized, the prism support assembly can drive at least a portion of the first limiting component to rotate relative to the rotating seat assembly around the X-axis, and when the second driving component is energized, the rotating seat assembly can drive the portions of the prism support, the first limiting component, the first driving component, and the second limiting component disposed on the rotating seat assembly to rotate relative to the housing assembly around the Y-axis, the reflective element driving device of this application can realize the prism support driving the prism to achieve image stabilization driving of the periscope lens. Simultaneously, since the image stabilization adjustment in the X-axis direction and the Y-axis direction of the reflective element driving device of this application is controlled by the first driving component and the second driving component respectively, the directional control of image stabilization driving of the reflective element driving device of this application is easier. Therefore, the reflective element driving device of this application effectively solves the problem of poor performance of periscope lens modules in the prior art. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0030] Figure 1 A schematic diagram of a reflective element driving device according to a specific embodiment of the present invention is shown;

[0031] Figure 2 It shows Figure 1 Exploded view of the reflective element driving device in the image;

[0032] Figure 3 It shows Figure 1 A schematic diagram of the internal structure of the reflective element driving device in the diagram;

[0033] Figure 4 It shows Figure 1 A schematic diagram showing the positional relationship between the prism bracket, sliding shaft, and first driving magnet in the reflective element driving device;

[0034] Figure 5 It shows Figure 1 A schematic diagram of the internal structure of the housing assembly of the reflective element driving device in the diagram;

[0035] Figure 6 It shows Figure 1 A schematic diagram showing the positional relationship between the rotating seat assembly, bushing, and second magnet of the reflective element drive device;

[0036] Figure 7 It shows Figure 1 A schematic diagram showing the positional relationship between the rotating seat assembly, housing assembly, support base, and first ball bearing of the reflective element drive device;

[0037] Figure 8 It shows Figure 1 A schematic diagram showing the positional relationship between the rotating seat assembly, the second driving magnet, and the support seat of the reflective element driving device;

[0038] Figure 9 It shows Figure 1 A partial structural diagram of the first limiting component of the reflective element driving device.

[0039] The above figures include the following reference numerals:

[0040] 10. Housing assembly; 11. Base plate; 12. Vertical plate; 13. Side plate; 14. Outer shell; 20. Prism bracket; 30. Rotary seat assembly; 31. First reinforcing plate; 40. First limiting assembly; 41. Sliding shaft; 42. Bushing; 421. V-shaped hole; 50. Second limiting assembly; 51. Support seat; 511. Rotating groove; 52. First ball bearing; 53. Second ball bearing; 60. First drive assembly; 61. First drive magnet; 62. First drive wire 70. Second drive assembly; 71. Second drive magnet; 72. Second drive coil; 80. First magnet; 90. Second magnet; 100. Second magnetic chuck; 200. Second reinforcing plate; 300. Third magnet; 400. Bottom magnetic chuck; 410. Bottom magnet; 500. FPC board; 510. First mounting section; 520. Rocker arm section; 530. Second mounting section; 600. First spring; 700. Second spring; 800. Prism. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0043] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0044] To address the poor performance of periscope lens modules in the prior art, this application provides a reflective element driving device, a camera device, and a mobile terminal.

[0045] Furthermore, the camera device in this application has the following reflective element driving device, the optical element in this application is used to receive light from the outside and reflect the light to the lens assembly, such as a prism, and the mobile terminal in this application can be a mobile phone, tablet computer, or laptop computer with the camera device of this application.

[0046] like Figures 1 to 9As shown, the reflective element driving device in this application includes a housing assembly 10, which has an accommodating space. The reflective element driving device also includes a prism bracket 20, a rotating seat assembly 30, a first limiting assembly 40, a second limiting assembly 50, a first driving assembly 60, and a second driving assembly 70 disposed inside the accommodating space. The prism support 20 is movably mounted on the rotating base assembly 30; at least a portion of the first limiting component 40 is mounted on the rotating base assembly 30, and at least another portion of the first limiting component 40 is mounted on the prism support 20; at least a portion of the second limiting component 50 is mounted on the housing assembly 10, and at least another portion of the second limiting component 50 is mounted on the rotating base assembly 30; at least a portion of the first driving component 60 is mounted on the prism support 20, and at least a portion of the first driving component 60 is mounted on the rotating base assembly 30. When the first driving component 60 is energized, the prism support 20 assembly can drive at least a portion of the first limiting component 40 to rotate relative to the rotating base assembly 30 around the X-axis; at least a portion of the second driving component 70 is mounted on the rotating base assembly 30, and at least another portion of the second driving component 70 is mounted on the housing assembly 10. When the second driving component 70 is energized, the rotating base assembly 30 can drive the portions of the prism support 20, the first limiting component 40, the first driving component 60, and the second limiting component 50 mounted on the rotating base assembly 30 to rotate relative to the housing assembly 10 around the Y-axis.

[0047] When using the reflective element driving device of this application, since the reflective element driving device has a first limiting component 40 and a second limiting component 50, and when the first driving component 60 is energized, the prism support 20 assembly can drive at least a portion of the first limiting component 40 to rotate relative to the rotating seat assembly 30 around the X-axis, and when the second driving component 70 is energized, the rotating seat assembly 30 can drive the portions of the prism support 20, the first limiting component 40, the first driving component 60, and the second limiting component 50 disposed on the rotating seat assembly 30 to rotate relative to the housing assembly 10 around the Y-axis, the reflective element driving device of this application can realize the prism support 20 driving the prism to achieve image stabilization driving of the periscope lens. At the same time, since the image stabilization adjustment in the X-axis direction and the Y-axis direction of the reflective element driving device of this application is controlled by the first driving component 60 and the second driving component 70 respectively, the directional control of the image stabilization driving of the reflective element driving device of this application is easier. Therefore, the reflective element driving device of this application effectively solves the problem of poor performance of periscope lens modules in the prior art.

[0048] Furthermore, the prism holder 20 in this application is used to hold the prism 800.

[0049] Optionally, the rotary seat assembly 30 has an installation space, and at least a portion of the prism support 20 is disposed within the installation space. This arrangement ensures that the rotary seat assembly 30 can more stably drive the prism support 20 to move.

[0050] In one specific embodiment of this application, the first limiting component 40 includes a sliding shaft 41 and at least two bushings 42. At least a portion of the sliding shaft 41 is disposed inside the prism bracket 20, and both ends of the sliding shaft 41 extend out of the prism bracket 20. The bushings 42 are disposed on the rotating seat assembly 30, and both ends of the sliding shaft 41 are rotatably connected to at least one bushing 42.

[0051] In one specific embodiment of this application, the two ends of the sliding shaft 41 pass through the two side walls of the prism bracket 20 in the X-axis direction and extend into the corresponding bushings 42. At this time, the other parts of the sliding shaft 41 between the two side walls of the prism bracket 20 can be hollow, thereby effectively reducing the overall weight of the reflective element driving device. At the same time, this arrangement can also reduce the driving force required for the prism bracket 20 to drive the sliding shaft 41 to rotate relative to the rotating seat.

[0052] Optionally, the axis of the slide shaft 41 is parallel to the X-axis.

[0053] In other words, in this application, when the prism bracket 20 rotates relative to the rotating seat assembly 30 around the X-axis, the sliding shaft 41 in the first limiting assembly 40 rotates relative to the bushing 42, and at this time the prism bracket 20 drives the sliding shaft 41 to rotate together.

[0054] Optionally, the reflective element driving device further includes a first magnet 80 and a second magnet 90. The first magnet 80 and the second magnet 90 are respectively disposed on the rotating seat assembly 30 corresponding to the prism bracket 20. The plane where the first magnet 80 is located is parallel to the YZ plane, and the plane where the second magnet 90 is located is parallel to the XZ plane. A first adsorption frame that cooperates with the first magnet 80 and the second magnet 90 is embedded inside the prism bracket 20.

[0055] Optionally, the outer surface of the prism holder 20 is provided with a first magnetic absorbing piece that cooperates with the first magnet 80, and a second magnetic absorbing piece 100 that cooperates with the second magnet 90.

[0056] Optionally, the first magnet 80 is positioned close to one of the bushings 42, and the sliding shaft 41 is tapered at least at one end close to the first magnet 80.

[0057] Optionally, the bushing 42 is provided with a V-shaped hole 421 corresponding to the tapered structure of the sliding shaft 41. The upper part of the V-shaped hole 421 is semi-circular, and the lower part of the V-shaped hole 421 is V-shaped.

[0058] Optionally, the rotary seat assembly 30 is provided with a first reinforcing plate 31 corresponding to at least one bushing 42. The first reinforcing plate 31 is embedded inside the rotary seat assembly 30, and the first reinforcing plate 31 is close to the side of the bushing 42 away from the other bushing 42.

[0059] Furthermore, this application can also provide two sliding shafts 41, which are located on the same straight line and spaced apart along the X-axis. In this case, the ends of the two sliding shafts 41 that are far apart extend from the two ends of the prism bracket 20 in the X-axis direction and respectively engage with different bushings 42, while the ends of the two sliding shafts 41 that are close together are located inside the prism bracket 20. In this case, the prism bracket 20 can also drive the two sliding shafts 41 to rotate relative to the rotating seat assembly 30 and the bushings 42. Of course, in this application, the number and arrangement of the sliding shafts 41 can be changed according to actual design requirements, as long as the prism bracket 20 can rotate relative to the rotating seat assembly 30 around the X-axis.

[0060] In this application, by providing a first magnet 80 and a second magnet 90, the prism support 20 can be supported against one end of the rotating seat assembly 30 under the force of the first magnet 80 and the second magnet 90. Furthermore, in this application, the first magnet 80 and the second magnet 90 can simultaneously cooperate with a first adsorption frame embedded inside the prism support 20. The first adsorption frame is made of magnetic or composite material. When the first adsorption frame is not embedded inside the prism support 20, a first magnetic attracting piece and a second magnetic attracting piece 100 can be respectively provided at the positions corresponding to the first magnet 80 and the second magnet 90, thereby ensuring that the first magnet 80 and the first magnetic attracting piece interact, and the second magnet 90 interacts with the second magnetic attracting piece 100. Of course, in this application, the first adsorption frame, the first magnetic attracting piece, and the second magnetic attracting piece 100 can be provided simultaneously, or the first adsorption frame can be provided along with one of the first magnetic attracting piece and the second magnetic attracting piece 100, to ensure the supporting effect.

[0061] When the first magnet 80 acts on the prism support 20, the direction of the force on the prism support 20 is in the X-axis direction. When the second magnet 90 acts on the prism support 20, the direction of the force on the prism support 20 is in the Y-axis direction. Therefore, when the prism support 20 is subjected to the resultant force of these two forces, if there is only one sliding shaft 41, the end of the sliding shaft 41 near the first magnetic attracting piece will be supported by the bottom of the inner surface of the hole of the bushing 42 under the action of the resultant force. Therefore, setting this end of the sliding shaft 41 as conical and setting the corresponding bearing hole as a V-shaped hole 421 with a V-shape at the bottom and a semi-circular shape at the top can effectively prevent the sliding shaft 41 from getting stuck during the rotation relative to the bushing 42. Meanwhile, this end of the slide shaft 41 will also abut against the rotating seat assembly 30 along the X-axis, thereby ensuring that the prism bracket 20 will not move during the rotation relative to the rotating seat assembly 30. In order to effectively prevent the end of the slide shaft 41 from damaging the rotating seat assembly 30, a first reinforcing plate 31 can be provided on the part of the rotating seat assembly 30 that abuts against the end of the slide shaft 41.

[0062] Alternatively, the slide shaft 41 in this application may be made of stainless steel, ceramic or copper.

[0063] In this application, for the installation of the bushing 42, an installation groove can be provided at the corresponding position of the rotating seat assembly 30, thereby providing installation space for the bushing 42 and positioning the bushing 42.

[0064] In one specific embodiment of this application, the second limiting component 50 includes a support base 51 and a first ball bearing 52. There are two support bases 51, each with a rotation groove 511. One support base 51 is disposed on the bottom surface of the housing assembly 10, and the other support base 51 is disposed opposite to the rotating seat assembly 30, with the rotation grooves 511 of the two support bases 51 facing each other. At least a portion of the first ball bearing 52 is disposed within the rotation groove 511 of one of the support bases 51, and at least another portion of the first ball bearing 52 is disposed within the rotation groove 511 of the other support base 51. That is, when the rotating seat assembly 30 moves together with the prism support 20, the rotating seat assembly 30 can drive the first ball bearing 52 or rotate relative to the first ball bearing 52. In this embodiment, by setting the support seat 51, not only can the first ball 52 be limited, but the first ball 52 can also be prevented from directly contacting the rotating seat assembly 30 or the housing assembly 10, thereby indirectly increasing the contact area between the first ball 52 and the rotating seat assembly 30 and the housing assembly 10, and thus preventing impact damage or extrusion dents from occurring at the contact point between the first ball 52 and the rotating seat assembly 30 and the housing assembly 10.

[0065] Optionally, a rotational clearance is provided between the two support seats 51. This arrangement effectively reduces the resistance experienced by the rotating seat assembly 30 during movement, thereby ensuring smoother movement of the rotating assembly.

[0066] Optionally, a second reinforcing plate 200 is provided inside the housing assembly 10 and inside the rotating seat assembly 30, respectively, corresponding to the support base 51. This arrangement can effectively improve the structural strength of the rotating seat assembly 30 and the housing assembly 10, thereby increasing their service life.

[0067] Optionally, the second limiting component 50 further includes a second ball bearing 53. The rotating seat assembly 30 has at least one mounting groove on the side facing the housing assembly 10, and each mounting groove contains at least one second ball bearing 53. At least a portion of the second ball bearing 53 extends out of the mounting groove and rolls in contact with the bottom surface of the housing assembly 10. Furthermore, a steel plate can be embedded at the corresponding position where the housing assembly 10 contacts the second ball bearing 53. This not only reduces the rolling resistance of the second ball bearing 53 but also ensures the strength of the housing assembly 10.

[0068] In one specific embodiment of this application, there are two second balls 53, and the two second balls 53 are equidistant from the first ball 52. The housing assembly 10 includes: a base plate 11, with a support base 51 disposed on the base plate 11; a vertical plate 12, which is erected on the base plate 11 and parallel to the XY plane, and the two second balls 53 roll in contact with the end of the base plate 11 near the vertical plate 12; and two oppositely disposed side plates 13, which are erected on the base plate 11 and respectively disposed at both ends of the vertical plate 12, and are parallel to the YZ plane. Furthermore, the housing assembly 10 in this application may also include an outer shell 14 covering the base plate 11, the vertical plate 12, and the side plates 13.

[0069] Optionally, the reflective element driving device also includes a plurality of third magnets 300, which are arranged circumferentially around the support seat 51 on the base plate 11, and a second adsorption frame that cooperates with the third magnets 300 is embedded inside the rotating seat assembly 30.

[0070] Optionally, there are three third magnets 300, and the resultant force of the magnetic attraction of the three third magnets 300 on the rotating seat assembly 30 coincides with the center of the triangle formed by the first ball 52 and the second ball 53. Since the second adsorption frame is embedded inside the rotating seat assembly 30, the rotating seat assembly 30 can be subjected to force simultaneously when the third magnets 300 interact with the second adsorption frame. This arrangement ensures more stable force distribution on the rotating seat assembly 30, thereby preventing tilting of the rotating seat assembly 30.

[0071] Optionally, the reflective element driving device further includes at least two bottom magnetic clasps 400 and at least two bottom magnets 410. The two bottom magnetic clasps 400 are respectively disposed at both ends of the base plate 11 in the X-axis direction, and the two bottom magnets 410 are respectively disposed on the rotating seat assembly 30 corresponding to the two bottom magnetic clasps 400.

[0072] In one specific embodiment of this application, the cooperation between the bottom magnet and the bottom magnetic sheet, and the cooperation between the third magnet 300 and the second adsorption frame inside the support base 51, ensures stable contact between the rotation grooves 511 of the two support bases 51 and the first ball bearing 52. This effectively ensures that the rotating base assembly 30 can drive the prism bracket 20 to move more smoothly. Simultaneously, this cooperation method also effectively prevents the rotating frame assembly from tipping over.

[0073] In one specific embodiment of this application, the first driving assembly 60 includes a set of first driving magnets 61 and first driving coils 62 arranged opposite to each other. The first driving magnets 61 are disposed on the side wall opposite to the upright plate 12 of the prism bracket 20 and the housing assembly 10, and the first driving coils 62 are disposed on the rotating base assembly 30 corresponding to the first driving magnets 61. The second driving assembly 70 includes two second driving magnets 71 and two second driving coils 72. The two second driving coils 72 are respectively disposed on the two side plates 13 of the housing assembly 10, and the two second driving magnets 71 are respectively disposed on the rotating base assembly 30 corresponding to the two second driving coils 72.

[0074] Optionally, the reflective element driving device also includes an FPC board 500, which includes a first mounting section 510, a rocker arm section 520, and a second mounting section 530 connected in sequence. The first mounting section 510 is disposed on the housing assembly 10 and electrically connected to the second drive coil 72, and the second mounting section 530 is disposed on the rotating seat assembly 30 and electrically connected to the first drive coil 62. This arrangement not only prevents the electrical connection between the first drive coil 62 and the second drive coil 72, but also allows the rotating seat assembly 30 to drive the first drive coil 62 to move together with the prism support 20 relative to the housing assembly 10 when the prism support 20 moves relative to the housing assembly 10. Furthermore, because the FPC board 500 has the rocker arm section 520, the rotating seat assembly 30 can stretch or deform during this movement. Therefore, in this application, the rocker arm segment 520 can be configured as a multi-segment bent structure to ensure that the rocker arm segment 520 will not be torn during the movement of the rotating seat assembly 30 and to ensure that the rocker arm segment 520 will not drive the first mounting segment 510 to move together. Of course, in this application, position sensors can also be set on the FPC board 500 at positions corresponding to the first drive coil 62 and the second drive coil 72, and in this application, the position sensors can be Hall elements, etc.

[0075] Optionally, the reflective element driving device further includes at least two first springs 600 and at least two second springs 700. At least one first spring 600 is respectively provided at both ends of the top surface of the rotating base assembly 30 in the X-axis direction. One end of the first spring 600 is connected to the rotating base assembly 30, and the other end is connected to the prism support 20. At least one second spring 700 is respectively provided at the end of the two side plates 13 of the housing assembly 10 away from the upright plate 12 of the housing assembly 10. One end of the second spring 700 is connected to the side plate 13, and the other end is connected to the rotating base assembly 30. By providing the first springs 600, a restoring force can be provided to the prism support 20 during its movement relative to the rotating base assembly 30, enabling the prism support 20 to quickly return to its initial position. Similarly, by providing the second springs 700, a restoring force can be provided to the rotating base assembly 30 during its movement with the prism support 20, enabling the rotating base assembly 30 to quickly return the prism support 20 to its initial position. Therefore, by setting the first spring 600 and the second spring 700 in this application, the sensitivity of the reflective element driving device in this application can be effectively improved.

[0076] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0077] 1. Effectively solves the problem of poor performance of periscope lens modules in existing technologies;

[0078] 2. Simple structure and stable performance.

[0079] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0080] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0081] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A driving device for a reflective element, characterized in that, The device includes a housing assembly (10) having a receiving space, and the reflective element driving device further includes a component disposed within the receiving space: Prism support (20); Rotary seat assembly (30), the prism support (20) is movably mounted on the rotary seat assembly (30); A first limiting component (40), at least a portion of which is disposed on the rotating seat assembly (30), and at least another portion of which is disposed on the prism bracket (20); A second limiting component (50), at least a portion of which is disposed on the housing assembly (10), and at least another portion of which is disposed on the rotating seat assembly (30); A first driving component (60) is provided, at least a portion of which is disposed on the prism bracket (20) and at least a portion of which is disposed on the rotating seat assembly (30). When the first driving component (60) is powered on, the prism bracket (20) assembly can drive at least a portion of the first limiting component (40) to rotate relative to the rotating seat assembly (30) around the X-axis. The second drive assembly (70) has at least a portion disposed on the rotating base assembly (30) and at least another portion disposed on the housing assembly (10). When the second drive assembly (70) is powered on, the rotating base assembly (30) can drive the portions of the prism bracket (20), the first limiting assembly (40), the first drive assembly (60), and the second limiting assembly (50) disposed on the rotating base assembly (30) to rotate relative to the housing assembly (10) around the Y-axis.

2. The reflective element driving device according to claim 1, characterized by The rotating seat assembly (30) has an installation space, and at least a portion of the prism bracket (20) is disposed within the installation space.

3. The reflective element driving device according to claim 1, characterized by The first limiting component (40) includes: A sliding shaft (41), at least a portion of which is disposed inside the prism bracket (20), and both ends of the sliding shaft (41) extend out of the prism bracket (20); At least two bushings (42) are disposed on the rotating seat assembly (30), and the two ends of the sliding shaft (41) are rotatably connected to at least one of the bushings (42).

4. The reflective element driving device according to claim 3, characterized by The axis of the slide shaft (41) is parallel to the X-axis.

5. The reflective element driving device according to claim 3, characterized by The reflective element driving device further includes a first magnet (80) and a second magnet (90). The first magnet (80) and the second magnet (90) are respectively disposed on the rotating seat assembly (30) corresponding to the prism bracket (20). The plane where the first magnet (80) is located is parallel to the YZ plane, and the plane where the second magnet (90) is located is parallel to the XZ plane. The prism holder (20) is internally fitted with a first adsorption frame that cooperates with the first magnet (80) and the second magnet (90); and / or The outer surface of the prism bracket (20) is provided with a first magnetic absorbing piece that cooperates with the first magnet (80) and a second magnetic absorbing piece (100) that cooperates with the second magnet (90).

6. The reflective element driving device according to claim 5, characterized by The first magnet (80) is positioned close to one of the bushings (42), and the slide shaft (41) is tapered at least at one end close to the first magnet (80).

7. The reflective element driving device according to claim 6, characterized by The bushing (42) is provided with a V-shaped hole (421) corresponding to the tapered structure of the sliding shaft (41). The upper part of the V-shaped hole (421) is semi-circular, and the lower part of the V-shaped hole (421) is V-shaped.

8. The reflective element driving device according to claim 5, characterized by The rotating seat assembly (30) is provided with a first reinforcing plate (31) corresponding to at least one of the bushings (42). The first reinforcing plate (31) is embedded inside the rotating seat assembly (30), and the first reinforcing plate (31) is located on the side of the bushing (42) away from the other bushing (42).

9. The reflective element driving device according to claim 1, characterized by, The second limiting component (50) includes: Support base (51), there are two support bases (51), each support base (51) has a rotating groove (511), one of the support bases (51) is disposed on the bottom surface of the housing assembly (10), and the other support base (51) is disposed opposite to the rotating seat assembly (30), and the rotating grooves (511) of the two support bases (51) are disposed opposite to each other; A first ball (52), at least a portion of which is disposed in the rotation groove (511) of one of the supports (51), and at least another portion of which is disposed in the rotation groove (511) of the other support (51).

10. The reflective element driving device according to claim 9, characterized in that, There is a rotational clearance between the two support seats (51).

11. The reflective element driving device according to claim 9, characterized in that, The interior of the housing assembly (10) and the interior of the rotating seat assembly (30) are respectively provided with second reinforcing plates (200) corresponding to the support seat (51).

12. The reflective element driving device according to claim 9, characterized in that, The second limiting component (50) further includes a second ball (53). The rotating seat component (30) has at least one mounting groove on the side facing the housing component (10). Each mounting groove contains at least one second ball (53), and at least a portion of the second ball (53) extends out of the mounting groove and rolls in contact with the bottom surface of the housing component (10).

13. The reflective element driving device according to claim 12, characterized in that, There are two second balls (53), and the two second balls (53) are equidistant from the first ball (52). The housing assembly (10) includes: A base plate (11), wherein one of the support seats (51) is disposed on the base plate (11); The upright plate (12) is erected on the base plate (11) and parallel to the XY plane, and the two second balls (53) roll in contact with the end of the base plate (11) near the upright plate (12); Two opposing side plates (13) are erected on the base plate (11). The two side plates (13) are respectively disposed at both ends of the upright plate (12), and the side plates (13) are parallel to the YZ plane.

14. The reflective element driving device according to claim 13, characterized in that, The reflective element driving device also includes a plurality of third magnets (300), which are arranged circumferentially around the support base (51) on the base plate (11). The rotating seat assembly (30) is internally fitted with a second adsorption frame that cooperates with the third magnets (300).

15. The reflective element driving device according to claim 14, characterized in that, There are three third magnets (300), and the resultant force of the magnetic attraction of the three third magnets (300) on the rotating seat assembly (30) coincides with the center position of the triangle formed by the first ball (52) and the second ball (53).

16. The reflective element driving device according to claim 13, characterized in that, The reflective element driving device further includes at least two bottom magnetic clasps (400) and at least two bottom magnets (410). The two bottom magnetic clasps (400) are respectively disposed at both ends of the base plate (11) in the X-axis direction, and the two bottom magnets (410) are respectively disposed on the rotating seat assembly (30) corresponding to the two bottom magnetic clasps (400).

17. The reflective element driving device according to any one of claims 1 to 16, characterized in that, The first drive assembly (60) includes a set of first drive magnets (61) and first drive coils (62) arranged opposite to each other. The first drive magnets (61) are disposed on the side wall of the prism bracket (20) opposite to the upright plate (12) of the housing assembly (10). The first drive coils (62) are disposed on the rotating seat assembly (30) corresponding to the first drive magnets (61). The second drive assembly (70) includes two second drive magnets (71) and two second drive coils (72). The two second drive coils (72) are respectively disposed on the two side plates (13) of the housing assembly (10), and the two second drive magnets (71) are respectively disposed on the rotating seat assembly (30) corresponding to the two second drive coils (72).

18. The reflective element driving device according to claim 17, characterized in that, The reflective element driving device also includes an FPC board (500), which includes a first mounting section (510), a rocker arm section (520), and a second mounting section (530) connected in sequence. The first mounting section (510) is disposed on the housing assembly (10) and electrically connected to the second drive coil (72). The second mounting section (530) is disposed on the rotating seat assembly (30) and electrically connected to the first drive coil (62).

19. The reflective element driving device according to any one of claims 1 to 16, characterized in that, The reflective element driving device further includes: At least two first springs (600) are provided at both ends of the top surface of the rotating seat assembly (30) in the X-axis direction. One end of the first spring (600) is connected to the rotating seat assembly (30), and the other end of the first spring (600) is connected to the prism bracket (20). At least two second springs (700) are provided at one end of each of the two side plates (13) of the housing assembly (10) away from the upright plate (12) of the housing assembly (10). One end of the second spring (700) is connected to the side plate (13), and the other end of the second spring (700) is connected to the rotating seat assembly (30).

20. A camera device, characterized in that, The reflective element driving device includes any one of claims 1 to 19.

21. A mobile terminal, characterized in that, Includes the camera device as described in claim 20.

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