Aperture driving motor, camera module and electronic device

Abstract

The application provides an aperture driving motor, a camera module and an electronic device. The aperture driving motor comprises a housing assembly, the housing assembly having a receiving cavity; a rotating frame, the rotating frame movably arranged in the receiving cavity; a vane assembly, the vane assembly connected with the housing assembly and the rotating frame assembly respectively, and at least a part of the vane assembly capable of moving relative to the housing assembly along with the rotating frame; and at least two driving assemblies, the driving assemblies movably arranged on the housing assembly, at least a part of the driving assemblies extending into the receiving cavity and connected with the rotating frame; when at least one of the driving assemblies is powered, the powered driving assembly drives the rotating frame to rotate in a positive direction around an optical axis, and when at least another one of the driving assemblies is powered, the powered driving assembly drives the rotating frame to rotate in a reverse direction around the optical axis. The application solves the problem of poor performance of the aperture driving motor of the camera device in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lenses, in particular to an aperture driving motor, a camera module and an electronic device. BACKGROUND

[0002] In mobile photography technology, the aperture size of the camera has a decisive influence on the final imaging quality. The aperture not only controls the amount of light entering the lens, but also directly affects the shutter speed and depth of field effect, thereby determining the best shooting strategy under different scenes. Large aperture design allows more light to enter, significantly improving the shooting performance in low light conditions, speeding up the shutter speed, reducing motion blur, and is suitable for capturing fast-moving objects. In addition, a smaller depth of field helps to create a beautiful background blur effect, enhancing the visual impact of the focal object. In contrast, a small aperture ensures a longer exposure time and a deeper depth of field, which is extremely beneficial for shooting still landscapes such as train tracks, star tracks, etc. night scene mode, can ensure that the entire picture from the foreground to the distant background can be clearly presented.

[0003] The VCM (voice coil motor) in the prior art is the core component of aperture control, which can generate a force after current is passed through, thereby changing the diameter of the aperture formed by the leaf assembly. However, the voice coil motor in the prior art is easily affected by electromagnetic interference, resulting in poor aperture aperture adjustment accuracy.

[0004] Therefore, there is a problem of poor performance of the aperture driving motor of the camera device in the prior art. SUMMARY

[0005] The main purpose of the present application is to provide an aperture driving motor, a camera module and an electronic device to solve the problem of poor performance of the aperture driving motor of the camera device in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an aperture driving motor is provided, comprising: a housing assembly having a receiving cavity; a rotating frame movably arranged in the receiving cavity; a leaf assembly connected with the housing assembly and the rotating frame assembly respectively, and at least a part of the leaf assembly can move relative to the housing assembly together with the rotating frame; at least two driving assemblies movably arranged on the housing assembly, at least a part of the driving assembly extends into the receiving cavity and is connected with the rotating frame; when at least one of the driving assemblies is powered, the powered driving assembly drives the rotating frame to rotate clockwise around the optical axis, and when at least another one of the driving assemblies is powered, the powered driving assembly drives the rotating frame to rotate counterclockwise around the optical axis.

[0007] Further, the driving assembly is two, the two driving assemblies are symmetrically arranged about the center of the rotating frame; and / or when one of the driving assemblies is powered, the other driving assembly is powered off.

[0008] Furthermore, the drive assembly includes: a fixed chuck, which is mounted on the housing assembly; a movable chuck; a wire, one end of which is connected to the fixed chuck and the other end of which is connected to the movable chuck; and a transmission unit, one end of which is connected to the movable chuck and the other end of which is connected to the rotating frame. When the fixed chuck and the movable chuck are energized, the movable chuck drives the rotating frame to rotate relative to the housing assembly through the transmission unit.

[0009] Furthermore, the drive assembly also includes a first ball bearing, a positioning groove is provided in the transmission part corresponding to the first ball bearing, a guide groove is provided in the housing assembly corresponding to the first ball bearing, at least a portion of the first ball bearing is disposed in the positioning groove, and at least another portion of the first ball bearing is disposed in the guide groove and is capable of moving along the guide groove.

[0010] Furthermore, the extension path of the guide groove is a straight line.

[0011] Furthermore, the transmission unit includes: a slider, which is connected to and can move with the movable jaw, and the slider has a positioning groove; a connecting arm, one end of which is connected to the slider and can rotate relative to the slider, and the other end of which is connected to the rotating frame.

[0012] Furthermore, the positioning groove is provided on the top or bottom surface of the slider; and / or the thickness of the end of the connecting arm that connects to the slider is less than the thickness of the end of the connecting arm that connects to the rotating frame.

[0013] Furthermore, the rotating frame is provided with a lever corresponding to the connecting arm. The axis of the lever is parallel to the optical axis, and one end of the lever is inserted into the connecting arm along the optical axis and rotatably connected to the connecting arm.

[0014] Furthermore, the drive assembly also includes at least two conductive connectors, at least a portion of which is embedded inside the housing assembly, and the moving claw and the fixed claw are electrically connected to different conductive connectors respectively.

[0015] Furthermore, the drive assembly also includes a reset component, through which the moving claw is connected to the conductive connector.

[0016] Furthermore, at least a portion of the transmission unit, the fixed chuck, the movable chuck, and the wire are respectively disposed inside the circumferential sidewall of the housing assembly, and at least another portion of the transmission unit is located in the receiving cavity and connected to the rotating frame.

[0017] Furthermore, the inner surface of the housing assembly has a mounting groove with the opening of the mounting groove facing the rotating frame, at least another part of the transmission unit is located in the mounting groove, and at least a part of the rotating frame extends into the mounting groove and is connected to the transmission unit.

[0018] Furthermore, the aperture drive motor also includes a bracket, at least a portion of which is disposed in a mounting groove. The bracket is located on the side of the transmission unit away from the rotating frame, and the side of the bracket facing the transmission unit is provided with a support protrusion or support ball corresponding to the transmission unit.

[0019] Furthermore, the housing assembly includes: a support base; a load-bearing portion, at least a portion of the load-bearing portion and the support base are both annular, the support base is disposed on the load-bearing portion and forms a receiving cavity with the load-bearing portion, the drive assembly is disposed on the load-bearing portion, and the blade assembly is connected to the side of the support base away from the load-bearing portion.

[0020] Furthermore, the support portion includes: a base, the base being annular, and a support seat disposed on the base; a bottom cover, the bottom cover being disposed on the side of the base away from the support seat, and at least a portion of the drive assembly being disposed between the base and the bottom cover.

[0021] Furthermore, the support and the base have at least one set of mating protrusions and slots on the side of each other, and the support and the base are detachably connected by the protrusions and slots.

[0022] Furthermore, the aperture drive motor also includes an adsorption magnet, which is disposed on the rotating frame. The base and / or bottom cover are provided with magnetic parts corresponding to the adsorption magnet. The adsorption magnet and the magnetic parts work together to provide the rotating frame with a force toward the bearing part and parallel to the optical axis.

[0023] Furthermore, the aperture drive motor also includes at least one second ball bearing, which is disposed between the bottom surface of the rotating frame and the surface of the base facing the support. The rotating frame and the base are provided with arc-shaped rolling grooves corresponding to the second ball bearing, and the second ball bearing can move along the rolling grooves.

[0024] Furthermore, the circumferential outer wall of the rotating frame has at least two connecting protrusions extending radially along the rotating frame. The number of connecting protrusions is equal to that of the drive components and they correspond one-to-one. Each connecting protrusion has a lever extending toward the drive component. The rotating frame is connected to the drive component through the lever. The circumferential inner wall of the support base is provided with a limiting groove corresponding to the connecting protrusion. At least a portion of the connecting protrusion extends into the limiting groove and can move along the limiting groove.

[0025] Furthermore, the aperture drive motor also includes a limiting member disposed between the circumferential inner wall of the housing assembly and the circumferential outer wall of the rotating frame.

[0026] According to another aspect of the present invention, a camera module is provided, including the aforementioned aperture drive motor.

[0027] According to another aspect of the present invention, an electronic device is provided, including the camera module described above.

[0028] Applying the technical solution of this invention, the aperture drive motor in this application includes a housing assembly, a rotating frame, a blade assembly, and at least two drive assemblies. The housing assembly has a receiving cavity; the rotating frame is movably disposed within the receiving cavity; the blade assembly is connected to both the housing assembly and the rotating frame assembly, and at least a portion of the blade assembly can move relative to the housing assembly along with the rotating frame; the drive assemblies are movably disposed on the housing assembly, and at least a portion of the drive assemblies extends into the receiving cavity and is connected to the rotating frame; when at least one of the drive assemblies is energized, the energized drive assemblies drive the rotating frame to rotate clockwise around the optical axis, and when at least one of the drive assemblies is energized, the energized drive assemblies drive the rotating frame to rotate counterclockwise around the optical axis.

[0029] When using the aperture drive motor of this application, since at least a portion of the drive component can move relative to the housing component after being energized, and the drive component can drive the rotating frame to move relative to the housing component, the movement of the rotating frame can drive the blade assembly to move together, thereby enabling the adjustment of the aperture size formed by the blade assembly. Because the drive component of this application is directly connected to the rotating frame, it does not generate magnetic interference compared to traditional voice coil motors, thus effectively ensuring the adjustment accuracy of the aperture formed by the blade assembly. Therefore, the aperture drive motor of this application effectively solves the problem of poor performance of aperture drive motors in existing camera devices. Attached Figure Description

[0030] 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:

[0031] Figure 1 A schematic diagram of the structure of an aperture drive motor according to a specific embodiment of this application is shown;

[0032] Figure 2 It shows Figure 1 An exploded view of the aperture drive motor in the image;

[0033] Figure 3 It shows Figure 1 A schematic diagram showing the positional relationship between the housing assembly and the rotating frame of the aperture drive motor;

[0034] Figure 4 It shows Figure 1 A schematic diagram of the rotating frame of the aperture drive motor in the image;

[0035] Figure 5 It shows Figure 1 A schematic diagram of the housing assembly of the aperture drive motor in the image;

[0036] Figure 6It shows Figure 1 A schematic diagram of the support structure for the housing assembly of the aperture drive motor in the image;

[0037] Figure 7 It shows Figure 1 A schematic diagram of the base structure of the housing assembly of the aperture drive motor in the image;

[0038] Figure 8 It shows Figure 1 A schematic diagram showing the positional relationship between the base of the housing assembly of the aperture drive motor and the drive assembly;

[0039] Figure 9 It shows Figure 1 A schematic diagram showing the positional relationship between the bottom cover of the housing assembly of the aperture drive motor and the drive assembly;

[0040] Figure 10 It shows Figure 1 A schematic diagram of the drive assembly of the aperture drive motor.

[0041] The above figures include the following reference numerals:

[0042] 10. Housing assembly; 11. Receiving cavity; 12. Guide groove; 13. Mounting groove; 14. Support base; 141. Limiting groove; 15. Bearing part; 151. Base; 152. Bottom cover; 20. Rotating frame; 21. Lever; 22. Connecting protrusion; 30. Blade assembly; 40. Drive assembly; 41. Fixed pawl; 42. Moving pawl; 43. Wire; 44. Transmission part; 441. Positioning groove; 442. Slider; 443. Connecting arm; 45. First ball bearing; 46. Conductive connector; 47. Reset part; 50. Support; 60. Insertion protrusion; 61. Insertion groove; 70. Adsorption magnet; 80. Second ball bearing; 81. Rolling groove; 90. Limiting part; 100. Top cover; 200. Gasket. Detailed Implementation

[0043] 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.

[0044] 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.

[0045] 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.

[0046] To address the issue of poor performance of aperture drive motors in existing camera devices, this application provides an aperture drive motor, a camera module, and an electronic device.

[0047] The electronic device in this application can be a mobile phone, drone, action camera, etc. Furthermore, the electronic device in this application has the camera module described herein, and the camera module has the aperture drive motor described below.

[0048] like Figures 1 to 10 As shown, the aperture drive motor in this application includes a housing assembly 10, a rotating frame 20, a blade assembly 30, and at least two drive assemblies 40. The housing assembly 10 has a receiving cavity 11; the rotating frame 20 is movably disposed within the receiving cavity 11; the blade assembly 30 is connected to both the housing assembly 10 and the rotating frame 20, and at least a portion of the blade assembly 30 can move relative to the housing assembly 10 along with the rotating frame 20; the drive assembly 40 is movably disposed on the housing assembly 10, and at least a portion of the drive assembly 40 extends into the receiving cavity 11 and is connected to the rotating frame 20; when at least one of the drive assemblies 40 is energized, the energized drive assembly 40 drives the rotating frame 20 to rotate clockwise around the optical axis, and when at least one of the drive assemblies 40 is energized, the energized drive assembly 40 drives the rotating frame 20 to rotate counterclockwise around the optical axis.

[0049] When using the aperture drive motor of this application, since at least a portion of the drive component 40 can move relative to the housing component 10 after being energized, and the drive component 40 can drive the rotating frame 20 to move together relative to the housing component 10, the movement of the rotating frame 20 can drive the blade assembly 30 to move together, thereby enabling the adjustment of the aperture size formed by the blade assembly 30. Because the drive component 40 of this application is directly connected to the rotating frame 20, compared with a conventional voice coil motor, the drive component 40 of this application does not generate magnetic interference, thus effectively ensuring the adjustment accuracy of the aperture formed by the blade assembly 30. Therefore, the aperture drive motor of this application effectively solves the problem of poor performance of aperture drive motors in existing camera devices.

[0050] Furthermore, the optical axis direction in this application generally refers to the optical axis direction of the lens of the camera module. And the optical axis direction is the same as the axis of the aperture formed by the blade assembly 30.

[0051] In one specific embodiment of this application, there are two drive components 40, which are symmetrically arranged about the center of the rotating frame 20. Furthermore, when one drive component 40 is energized, the other drive component 40 is de-energized. In this embodiment, by symmetrically arranging the two drive components 40 about the center of the rotating frame 20, it can be ensured that when different drive components 40 are energized, they drive the rotating frame 20 in different directions, thereby achieving aperture size adjustment.

[0052] Of course, in this application, the driving component 40 can also be set to more than two, and the number of driving components 40 can be even. In this case, all driving components 40 are divided into two groups, and the number of driving components 40 in the two groups is the same. When one group of driving components 40 is energized, the other group of driving components 40 is not energized. Furthermore, when one group of driving components 40 is energized, it can drive the rotating frame 20 to rotate forward or clockwise; when the other group of driving components 40 is energized, it can drive the rotating frame 20 to rotate in the opposite direction or counterclockwise.

[0053] Specifically, the drive assembly 40 includes a fixed jaw 41, a movable jaw 42, a wire 43, and a transmission part 44. The fixed jaw 41 is mounted on the housing assembly 10; one end of the wire 43 is connected to the fixed jaw 41, and the other end is connected to the movable jaw 42; one end of the transmission part 44 is connected to the movable jaw 42, and the other end is connected to the rotating frame 20. When the fixed jaw 41 and the movable jaw 42 are energized, the movable jaw 42 drives the rotating frame 20 to rotate relative to the housing assembly 10 via the transmission part 44. Furthermore, in this application, the wire 43 is an SMA wire, short for Shape Memory Alloy wire. Therefore, this arrangement ensures that the drive assembly 40 will not generate magnetic interference. When the wire 43 is energized, the wire 43 contracts and drives the movable jaw 42 to move, thereby causing the movable jaw 42 to drive the transmission part 44 and the rotating frame 20 to move, thus achieving the adjustment of the aperture size. It should be noted that in this application, the transmission part 44 and the rotating frame 20 are rotatably connected. Therefore, while the transmission part 44 can drive the rotating frame 20 to move, the rotating frame 20 can also rotate relative to the transmission part 44, thereby preventing the drive assembly 40 from jamming during the process of driving the rotating frame 20 to move.

[0054] Optionally, the drive assembly 40 further includes a first ball bearing 45. The transmission part 44 is provided with a positioning groove 441 corresponding to the first ball bearing 45, and the housing assembly 10 is provided with a guide groove 12 corresponding to the first ball bearing 45. At least a portion of the first ball bearing 45 is disposed in the positioning groove 441, and at least another portion of the first ball bearing 45 is disposed in the guide groove 12 and can move along the guide groove 12. That is to say, in this application, when the moving pawl 42 drives the transmission part 44 to move, the first ball bearing 45 can move together with the transmission part 44, and the mutual cooperation between the guide groove 12 and the first ball bearing 45 can guide the movement of the transmission part 44, thereby ensuring more precise adjustment of the aperture size. Furthermore, in this application, the depth of the guide groove 12 can be greater than the depth of the positioning groove 441, thereby ensuring that the portion of the first ball 45 located in the guide groove 12 is greater than the portion of the first ball 45 located in the positioning groove 441. Consequently, when the aperture drive motor is subjected to external force and the transmission part 44 produces a small displacement along the optical axis, the first ball 45 can be effectively prevented from dislodging from the guide groove 12, thus ensuring the performance of the aperture drive motor.

[0055] Optionally, the extension path of the guide groove 12 is a straight line. That is, at this time, the wire 43 drives the moving claw 42 and the transmission part 44 to move in a straight line. The purpose of this arrangement is to make it easier to control the driving direction of the wire 43. It should be noted that since the rotating frame 20 moves by rotation, the rotational connection between the transmission part 44 and the rotating frame 20 in this application can also effectively ensure that when the transmission part 44 moves in a straight line, the rotating frame 20 can rotate around the optical axis.

[0056] In one specific embodiment of this application, the transmission unit 44 includes a slider 442 and a connecting arm 443. The slider 442 is connected to the movable pawl 42 and can move with the movable pawl 42, and the slider 442 has a positioning groove 441. One end of the connecting arm 443 is connected to the slider 442 and can rotate relative to the slider 442, and the other end of the connecting arm 443 is connected to the rotating frame 20. That is, in this embodiment, the first ball bearing 45 is disposed on the slider 442, and since the slider 442 and the connecting arm 443 are rotatably connected, the slider 442 part of the transmission unit 44 in this embodiment will move in a straight line, while the connecting arm 443 may not move in a straight line. Furthermore, the connecting arm 443 and the rotating frame 20 are also rotatably connected. This ensures that the connection between the transmission unit 44 and the rotating frame 20 is more flexible, thereby effectively preventing jamming during the process of the drive assembly 40 driving the rotating frame 20. In this application, the slider 442 and the connecting arm 443 can be connected by a pin, so that the connecting arm 443 can rotate relative to the slider 442 about the pin.

[0057] Optionally, the positioning groove 441 is disposed on the top or bottom surface of the slider 442. Furthermore, in the optical axis direction, the first ball bearing 45 is disposed on the side of the slider 442 away from the moving jaw 42. That is, when the top surface of the slider 442 is connected to the moving jaw 42, the first ball bearing 45 is located on the bottom surface of the slider 442; when the bottom surface of the slider 442 is connected to the moving jaw 42, the first ball bearing 45 is located on the top surface of the slider 442. Additionally, the thickness direction of the slider 442 is parallel to the optical axis direction.

[0058] Optionally, the thickness of the end of the connecting arm 443 connected to the slider 442 is less than the thickness of the end of the connecting arm 443 connected to the rotating frame 20. Furthermore, the rotating frame 20 is provided with a lever 21 corresponding to the connecting arm 443. The axis of the lever 21 is parallel to the optical axis, and one end of the lever 21 is inserted into the connecting arm 443 along the optical axis and rotatably connected to the connecting arm 443. In other words, in this application, the portion of the connecting arm 443 used for connecting to the rotating frame 20 is thicker. The purpose of this design is to ensure that the lever 21 of the rotating frame 20 can be inserted into the connecting arm 443 to a certain depth along the optical axis, thereby ensuring a more stable connection between the connecting arm 443 and the rotating frame 20.

[0059] Optionally, the drive assembly 40 further includes at least two conductive connectors 46, at least a portion of which is embedded inside the housing assembly 10, and the movable claw 42 and the fixed claw 41 are electrically connected to different conductive connectors 46. In this application, there are two conductive connectors 46, one for electrical conduction of the fixed claw 41 and the other for electrical conduction of the movable claw 42. Furthermore, in this application, the end of the conductive connector 46 can extend from the circumferential outer wall of the housing assembly 10 to ensure that the conductive connector 46 can be electrically connected to an external power source. Of course, in this application, the movable claw 42 and the fixed claw 41 can also achieve electrical conduction through a structure such as a PCB board.

[0060] Specifically, the drive assembly 40 also includes a reset member 47, and the movable claw 42 is connected to the conductive connector 46 through the reset member 47. In this application, the reset member 47 can be a spring, with one end of the spring connected to the movable claw 42 and the other end connected to the conductive connector 46 corresponding to the movable claw 42, and the connection method can be welding. Since the wire 43 will drive the movable claw 42 to move when energized, the spring can ensure a stable connection between the movable claw 42 and the conductive connector 46, thereby ensuring the energizing effect of the movable claw 42. Furthermore, since the movable claw 42 drives the spring to move when the wire 43 is energized, and the spring is stretched, when the wire 43 is de-energized, the movable claw 42 can move in the opposite direction under the action of the spring and return to the position before the wire 43 was not energized. At the same time, the transmission component drives the rotating frame 20 to move in the opposite direction, thereby achieving rapid reset of the rotating frame 20.

[0061] Optionally, at least a portion of the transmission part 44, the fixed jaw 41, the movable jaw 42, and the wire 43 are respectively disposed inside the circumferential sidewall of the housing assembly 10, and at least another portion of the transmission part 44 is located in the receiving cavity 11 and connected to the rotating frame 20. Of course, in this application, the positional relationship between the transmission part 44, the fixed jaw 41, the movable jaw 42, the wire 43, and the housing assembly 10 can also be adaptively adjusted.

[0062] Optionally, the inner surface of the housing assembly 10 has a mounting groove 13, the opening of which faces the rotating frame 20. At least another portion of the transmission part 44 is located within the mounting groove 13, and at least a portion of the rotating frame 20 extends into the mounting groove 13 and connects to the transmission part 44. In this application, at least a portion of the connecting arm 443 of the transmission part 44 is located within the mounting groove 13. That is, in this application, the lever 21 of the rotating frame 20 can extend into the mounting groove 13 and be inserted into the connecting arm 443 along the optical axis. It should be noted that the opening direction of the mounting groove 13 can be parallel to the optical axis.

[0063] In other words, the space within the mounting slot 13 in this application can be considered as part of the receiving cavity 11.

[0064] Specifically, the housing assembly 10 includes a support base 14 and a bearing portion 15. At least a portion of the bearing portion 15 and the support base 14 are both annular. The support base 14 is disposed on the bearing portion 15 and forms a receiving cavity 11 with the bearing portion 15. The drive assembly 40 is disposed on the bearing portion 15, and the blade assembly 30 is connected to the side of the support base 14 away from the bearing portion 15. Furthermore, the bearing portion 15 includes a base 151 and a bottom cover 152. The base 151 is annular, and the support base 14 is disposed on the base 151. The bottom cover 152 is disposed on the side of the base 151 away from the support base 14, and at least a portion of the drive assembly 40 is disposed between the base 151 and the bottom cover 152. That is, in this application, the support base 14, the base 151, and the bottom cover 152 are stacked along the optical axis. Furthermore, the base 151 and the bottom cover 152 can be connected by welding.

[0065] Optionally, the aperture drive motor also includes a bracket 50, at least a portion of which is disposed within the mounting groove 13. The bracket 50 is located on the side of the transmission part 44 away from the rotating frame 20, and the side of the bracket 50 facing the transmission part 44 is provided with a support protrusion or support ball corresponding to the transmission part 44. This arrangement allows the connecting arm 443 of the transmission part 44 to be mounted on the bracket 50, thereby providing a limiting effect on the connecting arm 443 in the optical axis direction. In other words, by setting the bracket 50, displacement of the connecting arm 443 in the optical axis direction can be prevented, ensuring that the connecting arm 443 can more stably drive the rotating frame 20. Furthermore, the top surface of the bracket 50 and the bottom surface of the base 151 can limit the connecting arm 443 in both the positive and negative directions of the optical axis direction, effectively preventing displacement of the connecting arm 443 in the optical axis direction. Meanwhile, the above description also points out that the thickness of the portion of the connecting arm 443 near the slider 442 is less than the thickness of the portion of the connecting arm 443 near the lever 21. Therefore, in this application, the connecting arm 443 can be regarded as a combination of a sheet structure and a block structure. That is, the sheet structure is the same as the connecting slider 442, and the bottom surface of the base 151 limits the sheet structure downward in the optical axis direction to prevent the sheet structure from moving upward in the optical axis direction. The block structure, due to its certain thickness, allows the lever 21 of the rotating frame 20 to be inserted. At the same time, the top surface of the support 50 limits the block structure upward in the optical axis direction to prevent the block structure from moving downward in the optical axis direction. In addition, this arrangement also allows the connecting arm 443 to support the slider 442 and the moving claw 42, so that the moving claw 42 can be suspended between the base 151 and the bottom cover 152. Furthermore, in this application, the support protrusion or support ball can compensate for the installation gap between the connecting arm 443 and the support 50 in the optical axis direction, thereby ensuring a more stable overall structure. On the other hand, the support protrusion or support ball can also reduce the contact area between the connecting arm 443 and the support 50, thereby reducing the friction between them.

[0066] Furthermore, in one specific embodiment of this application, the support 50 is located between the connecting arm 443 and the reset member 47.

[0067] Meanwhile, in this application, the base 151 has a notch corresponding to the support 50, and this notch forms a mounting groove 13 with the top surface of the bottom cover 152.

[0068] Optionally, the support base 14 and the base 151 have at least one set of mating protrusions 60 and slots 61 on their adjacent sides, and the support base 14 and the base 151 are detachably connected via the protrusions 60 and slots 61. This arrangement makes it easier to assemble the support base 14 and the base 151. Of course, in this application, the support base 14 and the base 151 can also be assembled in other ways.

[0069] Optionally, the aperture drive motor further includes at least one second ball bearing 80, which is disposed between the bottom surface of the rotating frame 20 and the surface of the base 151 facing the support 14. The rotating frame 20 and the base 151 are provided with arc-shaped rolling grooves 81 corresponding to the second ball bearing 80, allowing the second ball bearing 80 to move along the rolling grooves 81. By providing the second ball bearing 80, the friction between the rotating frame 20 and the housing assembly 10 can be effectively reduced. Furthermore, a reinforcing plate can be provided at the bottom of the rolling groove 81 to prevent damage to the second ball bearing 80 from the rotating frame 20 or the base 151.

[0070] Optionally, the aperture drive motor also includes an adsorption magnet 70, which is disposed on the rotating frame 20. The base 151 and / or the bottom cover 152 are provided with magnetic parts corresponding to the adsorption magnet 70. The adsorption magnet 70 and the magnetic parts interact to provide a force to the rotating frame 20 toward the support part 15 and parallel to the optical axis. This arrangement can effectively ensure the stability of the rotating frame 20, thereby preventing the rotating frame 20 from deviating relative to the optical axis.

[0071] Optionally, the outer circumferential wall of the rotating frame 20 has at least two connecting protrusions 22 extending radially along the rotating frame 20. The number of connecting protrusions 22 is equal to that of the drive assembly 40 and they correspond one-to-one. Each connecting protrusion 22 has a lever 21 extending toward the drive assembly 40. The rotating frame 20 is connected to the drive assembly 40 through the lever 21. The inner circumferential wall of the support base 14 is provided with a limiting groove 141 corresponding to the connecting protrusion 22. At least a portion of the connecting protrusion 22 extends into the limiting groove 141 and can move along the limiting groove 141. The cooperation between the connecting protrusion 22 and the limiting groove 141 can effectively limit the rotation angle of the rotating frame 20. Furthermore, in this application, the limiting groove 141 extends along the inner circumferential wall of the support base 14, or in other words, the extension direction of the limiting groove 141 is parallel to the rotation direction of the rotating frame 20.

[0072] Optionally, the aperture drive motor further includes a limiting member 90, which is disposed between the circumferential inner wall of the housing assembly 10 and the circumferential outer wall of the rotating frame 20. In this application, there can be multiple limiting members 90, and these multiple limiting members 90 are arranged around the circumferential inner wall of the housing assembly 10. The limiting member 90 can be composed of balls or rollers. When the limiting member 90 is composed of balls, there are multiple balls arranged along the optical axis. When the limiting member 90 is a roller, the axial direction of the roller is parallel to the optical axis. In this application, since there will be an installation gap between the rotating frame 20 and the housing assembly 10 during installation, the limiting member 90 can reduce the impact of the installation gap on the rotating frame 20, thereby preventing the rotating frame 20 from being misaligned relative to the optical axis, i.e., ensuring that the axial direction of the rotating frame 20 is parallel to the optical axis.

[0073] Furthermore, the aperture drive motor in this application also includes a top cover 100 and a gasket 200. The top cover 100 covers the top of the housing assembly 10, and the gasket 200 is located on the side of the blade assembly 30 away from the top cover 100.

[0074] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0075] 1. Effectively solves the problem of poor performance of aperture drive motors in existing camera devices;

[0076] 2. Simple structure and stable performance.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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. An aperture drive motor characterized by, The utility model relates to a kind of rotating device, including: Housing assembly (10), the housing assembly (10) has accommodating cavity (11); Rotary frame (20), the rotary frame (20) is movably arranged in the accommodating cavity (11); Blade assembly (30), the blade assembly (30) is respectively connected with the housing assembly (10) and the rotary frame (20) component, and at least a part of the blade assembly (30) can be moved with the rotary frame (20) relative to the housing assembly (10); At least two drive assemblies (40), the drive assembly (40) is movably arranged on the housing assembly (10), and at least a part of the drive assembly (40) extends into the accommodating cavity (11) and is connected with the rotary frame (20); When at least one of the drive assemblies (40) is powered, the powered drive assembly (40) drives the rotary frame (20) to rotate in a positive direction around the optical axis, and when at least another one of the drive assemblies (40) is powered, the powered drive assembly (40) drives the rotary frame (20) to rotate in a reverse direction around the optical axis; The drive assembly (40) includes: a fixed jaw (41) provided on the housing assembly (10); a movable jaw (42); a wire (43) having one end connected to the fixed jaw (41) and the other end connected to the movable jaw (42); a transmission part (44) having one end connected to the movable jaw (42) and the other end connected to the rotary frame (20); when the fixed jaw (41) and the movable jaw (42) are powered, the movable jaw (42) drives the rotary frame (20) to rotate relative to the housing assembly (10) through the transmission part (44).

2. The aperture drive motor of claim 1, wherein, The drive assembly (40) is two, The two drive assemblies (40) are symmetrically arranged about the center of the rotary frame (20); When one of the drive assemblies (40) is powered, the other drive assembly (40) is powered off.

3. The aperture drive motor of claim 1, wherein, The drive assembly (40) further includes a first ball (45), the transmission part (44) is provided with a positioning groove (441) corresponding to the first ball (45), the housing assembly (10) is provided with a guide groove (12) corresponding to the first ball (45), at least a part of the first ball (45) is arranged in the positioning groove (441), and at least another part of the first ball (45) is arranged in the guide groove (12) and can move along the guide groove (12).

4. The aperture drive motor of claim 3, wherein, The extension path of the guide groove (12) is a straight line.

5. The aperture drive motor of claim 3, wherein, The transmission part (44) includes: A sliding block (442) connected to the movable jaw (42) and capable of moving with the movable jaw (42), and the sliding block (442) has the positioning groove (441); A connecting arm (443) having one end connected to the sliding block (442) and capable of rotating relative to the sliding block (442), and the other end connected to the rotary frame (20).

6. The aperture driving motor according to claim 5, wherein the positioning groove (441) is arranged on the top surface or the bottom surface of the slider (442); and / or the thickness of the end of the connecting arm (443) connected with the slider (442) is less than the thickness of the end of the connecting arm (443) connected with the rotating frame (20). The rotating frame (20) is provided with a push rod (21) corresponding to the connecting arm (443), the axial direction of the push rod (21) is parallel to the optical axis direction, and one end of the push rod (21) is inserted into the connecting arm (443) along the optical axis direction and rotatably connected with the connecting arm (443). The driving assembly (40) further comprises:

7. The aperture drive motor of claim 5, wherein, at least two conductive connecting members (46), at least a part of the conductive connecting members (46) is embedded in the inside of the shell assembly (10), and the movable jaw (42) and the fixed jaw (41) are respectively electrically connected with different conductive connecting members (46).

8. The aperture drive motor of claim 1, wherein, The driving assembly (40) further comprises: a reset member (47), the movable jaw (42) is connected with the conductive connecting member (46) through the reset member (47).

9. The aperture drive motor of claim 8, wherein, 10. The aperture driving motor according to claim 1, wherein at least a part of the transmission part (44), the fixed jaw (41), the movable jaw (42) and the wire (43) are arranged in the inside of the circumferential side wall of the shell assembly (10), and at least another part of the transmission part (44) is located in the accommodating cavity (11) and connected with the rotating frame (20). The inner surface of the shell assembly (10) is provided with a mounting groove (13), the opening direction of the mounting groove (13) is towards the rotating frame (20), at least another part of the transmission part (44) is located in the mounting groove (13), and at least a part of the rotating frame (20) extends into the mounting groove (13) and is connected with the transmission part (44). The aperture driving motor further comprises a bracket (50), at least a part of the bracket (50) is arranged in the mounting groove (13), the bracket (50) is located on the side of the transmission part (44) away from the rotating frame (20), and the side of the bracket (50) towards the transmission part (44) is provided with a supporting protrusion or supporting ball corresponding to the transmission part (44). The shell assembly (10) comprises:

11. The aperture drive motor of claim 10, wherein, a supporting seat (14); 12. The aperture drive motor of claim 11, wherein, a bearing part (15), at least a part of the bearing part (15) and the supporting seat (14) are annular, the supporting seat (14) is arranged on the bearing part (15) and surrounds the accommodating cavity (11) with the bearing part (15), the driving assembly (40) is arranged on the bearing part (15), and the vane assembly (30) is connected with the side of the supporting seat (14) away from the bearing part (15).

13. The aperture drive motor of any of claims 1 to 12, wherein, The bearing part (15) comprises: a base (151), the base (151) is annular, and the supporting seat (14) is arranged on the base (151); ​ 14. The aperture drive motor of claim 13, wherein, ​ ​ A bottom cover (152) is arranged on the side of the base (151) away from the support seat (14), and at least a part of the drive assembly (40) is arranged between the base (151) and the bottom cover (152).

15. The aperture drive motor of claim 14, wherein, The side of the support seat (14) and the base (151) close to each other is provided with at least one set of matched plug protrusions (60) and plug slots (61), and the support seat (14) and the base (151) are detachably connected through the plug protrusions (60) and the plug slots (61).

16. The aperture drive motor of claim 14, wherein, The aperture drive motor further comprises an adsorption magnet (70) arranged on the rotating frame (20), and the base (151) and / or the bottom cover (152) is provided with a magnetic part corresponding to the adsorption magnet (70), and the adsorption magnet (70) and the magnetic part act to provide a force on the rotating frame (20) towards the bearing part (15) and parallel to the optical axis.

17. The aperture drive motor of claim 14, wherein, The aperture drive motor further comprises at least one second ball (80) arranged between the bottom surface of the rotating frame (20) and the surface of the side of the base (151) towards the support seat (14), and the rotating frame (20) and the base (151) are provided with arc-shaped rolling grooves (81) corresponding to the second ball (80), and the second ball (80) can move along the rolling grooves (81).

18. The aperture drive motor of claim 13, wherein, The circumferential outer wall of the rotating frame (20) has at least two connection protrusions (22) extending in the radial direction of the rotating frame (20), the number of the connection protrusions (22) is equal to that of the drive assembly (40) and each connection protrusion (22) corresponds to one drive assembly (40), the connection protrusion (22) has a lever (21) extending towards the drive assembly (40), the rotating frame (20) is connected to the drive assembly (40) through the lever (21), and the circumferential inner wall of the support seat (14) is provided with a limiting groove (141) corresponding to the connection protrusion (22), at least a part of the connection protrusion (22) extends into the limiting groove (141) and can move along the limiting groove (141).

19. The aperture drive motor of any one of claims 1 to 12, wherein, The aperture drive motor further comprises a limiting piece (90) arranged between the circumferential inner wall of the housing assembly (10) and the circumferential outer wall of the rotating frame (20).

20. An image capture module, comprising: The aperture drive motor comprises the aperture drive motor according to any one of claims 1 to 19.

21. An electronic device, comprising: The camera module comprises the camera module according to claim 20.

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