Aperture driving motor, camera module and electronic equipment

Abstract

The invention provides an aperture driving motor, a camera module and electronic equipment. The aperture driving motor comprises: a housing assembly having an accommodating cavity; the rotating frame is movably arranged in the accommodating cavity; the blade assembly is connected with the shell assembly and the rotating frame assembly, and at least one part of the blade assembly can move relative to the shell assembly along with the rotating frame; the driving assemblies are movably arranged on the shell assembly, and at least one part of each driving assembly extends into the containing cavity and is connected with the rotating frame; when at least one driving assembly is powered on, the powered-on driving assembly drives the rotating frame to rotate forwards around the optical axis, and when at least another driving assembly is powered on, the powered-on driving assembly drives the rotating frame to rotate reversely around the optical axis. According to the invention, the problem of poor use performance of the aperture driving motor of the camera device in the prior art is solved.

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] Further, the driving assembly comprises a fixed jaw arranged on the shell assembly, a movable jaw, a wire having one end connected with the fixed jaw and the other end connected with the movable jaw, and a transmission part having one end connected with the movable jaw and the other end connected with the rotating frame; when the fixed jaw and the movable jaw are electrified, the movable jaw drives the rotating frame to rotate relative to the shell assembly through the transmission part.

[0009] Further, the driving assembly further comprises a first ball, the transmission part is provided with a positioning groove corresponding to the first ball, the shell assembly is provided with a guide groove corresponding to the first ball, at least a part of the first ball is arranged in the positioning groove, and at least another part of the first ball is arranged in the guide groove and can move along the guide groove.

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

[0011] Further, the transmission part comprises a sliding block connected with the movable jaw and capable of moving with the movable jaw, and the sliding block has the positioning groove; and a connecting arm having one end connected with the sliding block and capable of rotating relative to the sliding block, and the other end connected with the rotating frame.

[0012] Further, the positioning groove is arranged on the top surface or the bottom surface of the sliding block; and / or the thickness of the one end of the connecting arm connected with the sliding block is smaller than the thickness of the other end of the connecting arm connected with the rotating frame.

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

[0014] Further, the driving assembly further comprises at least two conductive connecting pieces, at least a part of the conductive connecting pieces is embedded in the interior of the shell assembly, and the movable jaw and the fixed jaw are respectively electrically connected with different conductive connecting pieces.

[0015] Further, the driving assembly further comprises a reset piece, the movable jaw is connected with the conductive connecting piece through the reset piece.

[0016] Further, at least a part of the transmission part, the fixed jaw, the movable jaw and the wire are respectively arranged in the interior of the circumferential side wall of the shell assembly, and at least another part of the transmission part is located in the accommodating cavity and connected with the rotating frame.

[0017] Further, the inner surface of the shell assembly has a mounting groove, the opening direction of the mounting groove is towards the rotating frame, at least another part of the transmission part is located in the mounting groove, and at least a part of the rotating frame extends into the mounting groove and is connected with the transmission part.

[0018] Further, the aperture driving motor further comprises a support base, at least a portion of the support base is arranged in the mounting groove, the support base is located at a side of the transmission part away from the rotating frame, and a side of the support base facing the transmission part is provided with a supporting protrusion or a supporting ball corresponding to the transmission part.

[0019] Further, the shell assembly comprises a support base and a bearing part, at least a portion of the bearing part and the support base are annular, the support base is arranged on the bearing part and forms a containing cavity together with the bearing part, the driving assembly is arranged on the bearing part, and the vane assembly is connected to a side of the support base away from the bearing part.

[0020] Further, the bearing part comprises a base and a bottom cover, the base is annular, and the support base is arranged on the base, the bottom cover is arranged at a side of the base away from the support base, and at least a portion of the driving assembly is arranged between the base and the bottom cover.

[0021] Further, a side of the support base and the base close to each other is provided with at least one set of cooperating plug-in protrusions and plug-in grooves, and the support base and the base are detachably connected through the plug-in protrusions and the plug-in grooves.

[0022] Further, the aperture driving motor further comprises an adsorbing magnet arranged on the rotating frame, and a magnetic part corresponding to the adsorbing magnet is arranged on the base and / or the bottom cover, the adsorbing magnet and the magnetic part act to provide a force for the rotating frame towards the bearing part and parallel to the optical axis.

[0023] Further, the aperture driving motor further comprises at least one second ball, the second ball is arranged between a bottom surface of the rotating frame and a surface of a side of the base facing the support base, the rotating frame and the base are provided with arc-shaped rolling grooves corresponding to the second ball, and the second ball can move along the rolling grooves.

[0024] Further, a circumferential outer side wall of the rotating frame is provided with at least two connecting protrusions extending along a radial direction of the rotating frame, the number of the connecting protrusions is equal to that of the driving assemblies and each connecting protrusion corresponds to one driving assembly, each connecting protrusion is provided with a lever extending towards the driving assembly, the rotating frame is connected to the driving assembly through the lever, and a circumferential inner side 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] Further, the aperture driving motor further comprises a limiting member arranged between the circumferential inner side wall of the shell assembly and the circumferential outer side wall of the rotating frame.

[0026] According to another aspect of the present application, a camera module is provided, comprising the aperture driving motor.

[0027] According to another aspect of the present application, an electronic device is provided, comprising the camera module.

[0028] The application discloses a diaphragm driving motor.

[0029] The diaphragm driving motor can drive the vane assembly to move through the movement of the rotating frame, so that the size of the diaphragm formed by the vane assembly can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0030] The drawings provided in the specification constitute a part of the present application and serve to provide a further understanding of the present application, the illustrative embodiments of the present application and its descriptions serve to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0031] Figure 1 A structural schematic diagram of the diaphragm driving motor in one specific embodiment of the present application is shown;

[0032] Figure 2 An exploded view of the diaphragm driving motor in Figure 1 is shown;

[0033] Figure 3 A position relation schematic diagram of the shell assembly and the rotating frame of the diaphragm driving motor in Figure 1 is shown;

[0034] Figure 4 A structural schematic diagram of the rotating frame of the diaphragm driving motor in Figure 1 is shown;

[0035] Figure 5 A structural schematic diagram of the shell assembly of the diaphragm driving motor in Figure 1 is shown;

[0036] Figure 6A structural schematic view of the support base of the shell assembly of the aperture driving motor in Figure 1 A structural schematic view of the support base of the shell assembly of the aperture driving motor in

[0037] Figure 7 A structural schematic view of the support base of the shell assembly of the aperture driving motor in Figure 1 A structural schematic view of the support base of the shell assembly of the aperture driving motor in

[0038] Figure 8 A structural schematic view of the support base of the shell assembly of the aperture driving motor in Figure 1 A structural schematic view of the support base of the shell assembly of the aperture driving motor in

[0039] Figure 9 A structural schematic view of the support base of the shell assembly of the aperture driving motor in Figure 1 A structural schematic view of the support base of the shell assembly of the aperture driving motor in

[0040] Figure 10 A structural schematic view of the support base of the shell assembly of the aperture driving motor in Figure 1 A structural schematic view of the support base of the shell assembly of the aperture driving motor in

[0041] Wherein, the above-mentioned drawings include the following reference signs:

[0042] 10, shell assembly; 11, accommodating 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, vane assembly; 40, driving assembly; 41, fixed jaw; 42, movable jaw; 43, wire; 44, transmission part; 441, positioning groove; 442, sliding block; 443, connecting arm; 45, first ball; 46, conductive connecting piece; 47, reset piece; 50, bracket; 60, plug-in protrusion; 61, plug-in groove; 70, adsorbing magnet; 80, second ball; 81, rolling groove; 90, limiting piece; 100, top cover; 200, gasket. DETAILED DESCRIPTION

[0043] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0044] It should be noted that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs.

[0045] In the present application, the orientation words such as "upper, lower, top, bottom" used without the opposite description are generally directed to the direction shown in the drawings, or directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of the components themselves, but the above orientation words are not used to limit the present application.

[0046] In order to solve the poor performance problem of the aperture driving motor of the camera device in the prior art, the present application provides an aperture driving motor, a camera module and an electronic device.

[0047] The electronic device in the present application can be a mobile phone, a drone, a sports camera, etc. Moreover, the electronic device in the present application has the camera module of the present application, and the camera module of the present application has the aperture driving motor described below.

[0048] As shown in Figures 1 to 10 The aperture driving motor in the present application includes a housing assembly 10, a rotating frame 20, a vane assembly 30 and at least two driving assemblies 40. The housing assembly 10 has a receiving cavity 11; the rotating frame 20 is movably arranged in the receiving cavity 11; the vane assembly 30 is connected with the housing assembly 10 and the rotating frame 20, and at least part of the vane assembly 30 can move relative to the housing assembly 10 together with the rotating frame 20; the driving assembly 40 is movably arranged on the housing assembly 10, and at least part of the driving assembly 40 extends into the receiving cavity 11 and is connected with the rotating frame 20; when at least one of the driving assemblies 40 is powered, the powered driving assembly 40 drives the rotating frame 20 to rotate forward around the optical axis, and when at least another one of the driving assemblies 40 is powered, the powered driving assembly 40 drives the rotating frame 20 to rotate reversely around the optical axis.

[0049] When the aperture driving motor in the present application is used, since at least part of the driving assembly 40 can move relative to the housing assembly 10 after the driving assembly 40 is powered, and the driving assembly 40 can drive the rotating frame 20 to move relative to the housing assembly 10, the movement of the rotating frame 20 can drive the vane assembly 30 to move, so that the adjustment of the size of the aperture composed of the vane assembly 30 can be realized. Since the driving assembly 40 in the present application is directly connected with the rotating frame 20, compared with the traditional voice coil motor, the driving assembly 40 in the present application will not produce magnetic interference, so that the adjustment accuracy of the aperture formed by the vane assembly 30 can be effectively ensured. Therefore, the aperture driving motor in the present application effectively solves the poor performance problem of the aperture driving motor of the camera device in the prior art.

[0050] Moreover, the optical axis direction in the present application generally refers to the optical axis direction of the lens of the camera module. Moreover, the optical axis direction is the same as the axial direction of the aperture composed of the vane assembly 30.

[0051] In one embodiment of the present application, two driving assemblies 40 are symmetrically arranged about the center of the rotating frame 20. When one of the driving assemblies 40 is powered on, the other driving assembly 40 is powered off. In this embodiment, by arranging two driving assemblies 40 symmetrically about the center of the rotating frame 20, the direction of rotation of the rotating frame 20 driven by different driving assemblies 40 can be different when the different driving assemblies 40 are powered on, thereby achieving the size adjustment of the aperture.

[0052] Of course, the number of driving assemblies 40 in the present application can also be greater than two, and the number of driving assemblies 40 can be even. In this case, all the driving assemblies 40 are divided into two groups, and the number of driving assemblies 40 in the two groups is the same. When one group of driving assemblies 40 is powered on, the other group of driving assemblies 40 is powered off. When one group of driving assemblies 40 is powered on, the rotating frame 20 can be driven to rotate in the forward direction or clockwise. When the other group of driving assemblies 40 is powered on, the rotating frame 20 can be driven to rotate in the reverse direction or counterclockwise.

[0053] Specifically, the driving assembly 40 includes a fixed jaw 41, a movable jaw 42, a wire 43, and a transmission part 44. The fixed jaw 41 is arranged on the housing assembly 10. One end of the wire 43 is connected to the fixed jaw 41, and the other end of the wire 43 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 of the transmission part 44 is connected to the rotating frame 20. When the fixed jaw 41 and the movable jaw 42 are powered on, the movable jaw 42 drives the rotating frame 20 to rotate relative to the housing assembly 10 through the transmission part 44. In the present application, the wire 43 is an SMA wire 43, which is the abbreviation of Shape Memory Alloy. Therefore, by such an arrangement, the driving assembly 40 can not produce magnetic interference. When the wire 43 is powered on, the wire 43 contracts and drives the movable jaw 42 to move, so that the movable jaw 42 drives the transmission part 44 and the rotating frame 20 to move, thereby achieving the size adjustment of the aperture. It should be noted that the transmission part 44 is rotatably connected to the rotating frame 20, so that the transmission part 44 can drive the rotating frame 20 to move, and the rotating frame 20 can also rotate relative to the transmission part 44, thereby preventing the driving assembly 40 from being stuck during the movement of the rotating frame 20.

[0054] Optionally, the driving assembly 40 further comprises a first ball 45, the transmission part 44 is provided with a positioning groove 441 corresponding to the first ball 45, the shell 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. That is, in the present application, when the movable claw 42 drives the transmission part 44 to move, the first ball 45 can move together with the transmission part 44, and through the cooperation of the guide groove 12 and the first ball 45, the movement of the transmission part 44 can be guided, so as to ensure that the adjustment of the aperture size is more accurate. In the present application, the depth of the guide groove 12 can be greater than the depth of the positioning groove 441, so as to ensure that the part of the first ball 45 located in the guide groove 12 is greater than the part of the first ball 45 located in the positioning groove 441, and thus when the aperture driving motor is subjected to external force and the transmission part 44 produces a slight displacement along the optical axis direction, the first ball 45 can be effectively prevented from being separated from the guide groove 12, so as to ensure the use performance of the aperture driving motor.

[0055] Optionally, the extension path of the guide groove 12 is a straight line. That is, at this time, the silk thread 43 drives the movable claw 42 and the transmission part 44 to move along a straight line. The purpose of such arrangement is to be able to more easily control the driving direction of the silk thread 43. It should be noted that since the movement mode of the rotating frame 20 is rotation, the rotation connection between the transmission part 44 and the rotating frame 20 can also effectively ensure that when the transmission part 44 moves along the straight line direction, the rotating frame 20 can rotate around the optical axis.

[0056] In a specific embodiment of the present application, the transmission part 44 comprises a sliding block 442 and a connecting arm 443, the sliding block 442 is connected with the movable claw 42 and can move together with the movable claw 42, and the sliding block 442 has the positioning groove 441; one end of the connecting arm 443 is connected with the sliding block 442 and can rotate relative to the sliding block 442, and the other end of the connecting arm 443 is connected with the rotating frame 20. That is, in the present embodiment, the first ball 45 is arranged on the sliding block 442, and since the sliding block 442 and the connecting arm 443 are rotatably connected, in the present embodiment, the sliding block 442 part of the transmission part 44 will move along a straight line, while the connecting arm 443 does not move along a straight line, and the connecting arm 443 and the rotating frame 20 are also rotatably connected, which can ensure that the connection between the transmission part 44 and the rotating frame 20 is more flexible, thereby effectively preventing the phenomenon of jamming during the driving of the rotating frame 20 by the driving assembly 40. In the present application, the sliding block 442 and the connecting arm 443 can be connected through a pin shaft, so that the connecting arm 443 can rotate relative to the sliding block 442 around the pin shaft.

[0057] Optionally, the positioning groove 441 is arranged on the top surface or the bottom surface of the sliding block 442. In addition, the first rolling ball 45 is arranged on the side of the sliding block 442 away from the movable jaw 42 in the optical axis direction. That is, when the top surface of the sliding block 442 is connected with the movable jaw 42, the first rolling ball 45 is located on the bottom surface of the sliding block 442; when the bottom surface of the sliding block 442 is connected with the movable jaw 42, the first rolling ball 45 is located on the top surface of the sliding block 442. In addition, the thickness direction of the sliding block 442 is parallel to the optical axis direction.

[0058] Optionally, the thickness of the end of the connecting arm 443 connected with the sliding block 442 is smaller than the thickness of the end of the connecting arm 443 connected with the rotating frame 20. In addition, 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 in the optical axis direction and is rotatably connected with the connecting arm 443. That is, the thickness of the part of the connecting arm 443 used for connecting with the rotating frame 20 is thicker in the present application, and the purpose of this arrangement is to ensure that the push rod 21 of the rotating frame 20 can be inserted into the connecting arm 443 to a certain depth in the optical axis direction, thereby ensuring that the connection between the connecting arm 443 and the rotating frame 20 is more stable.

[0059] Optionally, the driving assembly 40 further comprises 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. In the present application, the conductive connecting members 46 are two, one of which is used for electrical conduction of the fixed jaw 41, and the other is used for electrical conduction of the movable jaw 42. In addition, in the present application, the end of the conductive connecting member 46 can be extended out of the circumferential outer wall of the shell assembly 10 to ensure that the conductive connecting member 46 can be electrically connected with the external power supply. Of course, in the present application, the movable jaw 42 and the fixed jaw 41 can also realize electrical conduction through a PCB board and the like structure.

[0060] Specifically, the driving assembly 40 further comprises a reset member 47, and the movable jaw 42 is connected with the conductive connecting member 46 through the reset member 47. In the present application, the reset member 47 can be a spring, and one end of the spring is connected with the movable jaw 42, and the other end of the spring is connected with the conductive connecting member 46 corresponding to the movable jaw 42, and the connection mode can be welding. Since the silk thread 43 will drive the movable jaw 42 to move after being electrified, the stable connection between the movable jaw 42 and the conductive connecting member 46 can be ensured by arranging the spring, so as to ensure the electrification effect of the movable jaw 42. In addition, since the movable jaw 42 drives the spring to move after the silk thread 43 is electrified, the spring is stretched, so that after the silk thread 43 is de-energized, the movable jaw 42 can move in the opposite direction under the action of the spring and return to the position before the silk thread 43 is energized, and at the same time the transmission member drives the rotating frame 20 to move in the opposite direction, so as to realize the rapid reset of the rotating frame 20.

[0061] Optionally, at least one part of the transmission part 44, the fixed jaw 41, the movable jaw 42 and the wire 43 are arranged inside the circumferential sidewall of the housing assembly 10, and at least another part of the transmission part 44 is arranged in the accommodating cavity 11 and connected with the rotating frame 20. Of course, 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 be adjusted adaptively in the present application.

[0062] Optionally, the inner surface of the housing 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 arranged in the mounting groove 13, and at least one part of the rotating frame 20 extends into the mounting groove 13 and is connected with the transmission part 44. In the present application, at least one part of the connecting arm 443 of the transmission part 44 is arranged in the mounting groove 13, that is, in the present 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 direction. It should be noted that the opening direction of the mounting groove 13 can be parallel to the optical axis direction.

[0063] That is, in the present application, the space in the mounting groove 13 can be regarded as part of the accommodating cavity 11.

[0064] Specifically, the housing assembly 10 comprises a support seat 14 and a bearing part 15, at least one part of the bearing part 15 is annular, the support seat 14 is arranged on the bearing part 15 and surrounds the bearing part 15 to form the accommodating cavity 11, the drive assembly 40 is arranged on the bearing part 15, and the blade assembly 30 is connected with the side of the support seat 14 away from the bearing part 15. Moreover, the bearing part 15 comprises a base 151 and a bottom cover 152, the base 151 is annular, and the support seat 14 is arranged on the base 151; the bottom cover 152 is arranged on the side of the base 151 away from the support seat 14, and at least one part of the drive assembly 40 is arranged between the base 151 and the bottom cover 152. That is, in the present application, the support seat 14, the base 151 and the bottom cover 152 are stacked along the optical axis direction. Moreover, the base 151 and the bottom cover 152 can be connected by welding.

[0065] Optionally, the aperture driving motor further comprises a holder 50, at least a part of the holder 50 is arranged in the mounting groove 13, the holder 50 is located at a side of the transmission part 44 away from the rotating frame 20, and a side of the holder 50 facing the transmission part 44 is provided with a supporting protrusion or a supporting ball corresponding to the transmission part 44. In this way, the connecting arm 443 of the transmission part 44 can be arranged on the holder 50, so that the holder 50 provides a limiting effect in the optical axis direction for the connecting arm 443, or the holder 50 is arranged to prevent the connecting arm 443 from moving in the optical axis direction, so as to ensure that the connecting arm 443 can drive the rotating frame 20 to move more stably. At this time, the top surface of the holder 50 and the bottom surface of the base 151 can limit the connecting arm 443 in both positive and negative directions in the optical axis direction, thereby effectively preventing the connecting arm 443 from moving in the optical axis direction. Meanwhile, it is also pointed out in the above description that the thickness of the part of the connecting arm 443 close to the sliding block 442 is smaller than the thickness of the part of the connecting arm 443 close to the lever 21, so the connecting arm 443 in the present application can be regarded as a combination of a sheet structure and a block structure, that is, the sheet structure is connected to the sliding block 442 and the bottom surface of the base 151 limits the sheet structure in the downward direction of the optical axis, so as to avoid the sheet structure from moving upward along the optical axis, while the block structure has a certain thickness, so that the lever 21 of the rotating frame 20 can be inserted into the block structure, and the top surface of the holder 50 limits the block structure in the upward direction of the optical axis, so as to avoid the block structure from moving downward along the optical axis. Meanwhile, such an arrangement can also enable the connecting arm 443 to support the sliding block 442 and the movable claw 42, so that the movable claw 42 can be suspended between the base 151 and the bottom cover 152. In addition, the supporting protrusion or the supporting ball in the present application can offset the mounting gap of the connecting arm 443 and the holder 50 in the optical axis direction, so as to ensure that the overall structure is more stable. On the other hand, the supporting protrusion or the supporting ball can also reduce the contact area between the connecting arm 443 and the holder 50, so as to reduce the friction between the connecting arm 443 and the holder 50.

[0066] In addition, in one specific embodiment of the present application, the holder 50 is located between the connecting arm 443 and the reset member 47.

[0067] Meanwhile, in the present application, the part of the base 151 corresponding to the holder 50 is provided with a notch, and the notch and the top surface of the bottom cover 152 form the mounting groove 13.

[0068] Optionally, the side of the support base 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 base 14 and the base 151 are detachably connected through the plug protrusions 60 and the plug slots 61. In this way, the support base 14 and the base 151 can be more easily assembled. Of course, the support base 14 and the base 151 can also be assembled in other ways in the present application.

[0069] Optionally, the aperture driving 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 facing the support base 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. The second ball 80 can effectively reduce the friction between the rotating frame 20 and the shell assembly 10. In addition, the groove bottom of the rolling groove 81 can be provided with a reinforcing plate, so as to prevent the second ball 80 from being damaged with the rotating frame 20 or the base 151.

[0070] Optionally, the aperture driving motor further comprises an adsorbing 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 adsorbing magnet 70, and the adsorbing magnet 70 and the magnetic part act to provide a force for the rotating frame 20 towards the bearing part 15 and parallel to the optical axis. In this way, the stability of the rotating frame 20 can be effectively ensured, so as to prevent the rotating frame 20 from being inclined relative to the optical axis.

[0071] Optionally, the circumferential outer wall of the rotating frame 20 is provided with 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 driving assembly 40, and the connection protrusions 22 and the driving assembly 40 are one-to-one corresponding, the connection protrusions 22 are provided with a lever 21 extending towards the driving assembly 40, the rotating frame 20 is connected with the driving assembly 40 through the lever 21, and the circumferential inner wall of the support base 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. The connection protrusion 22 and the limiting groove 141 can effectively limit the rotation angle of the rotating frame 20. In addition, the limiting groove 141 extends along the circumferential inner wall of the support base 14, or the extension direction of the limiting groove 141 is parallel to the rotation direction of the rotating frame 20.

[0072] Optionally, the aperture driving motor further comprises a limiting member 90, which is arranged between the circumferential inner side wall of the housing assembly 10 and the circumferential outer side wall of the rotating frame 20. In the present application, the limiting member 90 can be multiple, and the multiple limiting members 90 are arranged around the circumferential inner side wall of the housing assembly 10. The limiting member 90 can be composed of a plurality of balls or rollers. When the limiting member 90 is composed of balls, the balls are multiple, and the multiple balls are arranged along the optical axis direction. When the limiting member 90 is composed of rollers, the axial direction of the rollers is parallel to the optical axis direction. In the present application, since there is an installation gap between the rotating frame 20 and the housing assembly 10 during installation, the installation gap can be reduced by arranging the limiting member 90, so as to avoid the rotating frame 20 from being inclined relative to the optical axis, that is, to ensure that the axial direction of the rotating frame 20 is parallel to the optical axis.

[0073] In addition, in the present application, the aperture driving motor further comprises 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 vane assembly 30 away from the top cover 100.

[0074] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0075] 1. The aperture driving motor of the camera device has good use performance.

[0076] 2. The structure is simple, and the performance is stable.

[0077] Obviously, the above-described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0078] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0079] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0080] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. An aperture drive motor, characterized in that, include: The housing assembly (10) has a receiving cavity (11). A rotating frame (20) is movably disposed within the receiving cavity (11); The blade assembly (30) is connected to the housing assembly (10) and the rotating frame (20) assembly respectively, and at least a portion of the blade assembly (30) can move relative to the housing assembly (10) together with the rotating frame (20); At least two drive assemblies (40) are 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 components (40) is energized, the energized drive component (40) drives the rotating frame (20) to rotate clockwise around the optical axis, and when at least one of the drive components (40) is energized, the energized drive component (40) drives the rotating frame (20) to rotate counterclockwise around the optical axis.

2. The aperture drive motor according to claim 1, characterized in that, There are two drive components (40). The two drive components (40) are arranged symmetrically about the rotating frame (20); and / or When one of the drive components (40) is powered on, the other drive component (40) is powered off.

3. The aperture drive motor according to claim 1, characterized in that, The driving component (40) includes: Fixed jaw (41), the fixed jaw (41) is disposed on the housing assembly (10); Moving claw (42); A wire (43), one end of which is connected to the fixed jaw (41), and the other end of which is connected to the movable jaw (42); Transmission part (44), one end of which is connected to the moving pawl (42), and the other end of which 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) through the transmission part (44).

4. The aperture drive motor according to claim 3, characterized in that, 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 disposed in the positioning groove (441), and at least another part of the first ball (45) is disposed in the guide groove (12) and can move along the guide groove (12).

5. The aperture drive motor according to claim 4, characterized in that, The extension path of the guide groove (12) is a straight line.

6. The aperture drive motor according to claim 4, characterized in that, The transmission unit (44) includes: The slider (442) is connected to the movable claw (42) and can move with the movable claw (42), and the slider (442) has the positioning groove (441). A connecting arm (443) is provided, one end of which is connected to the slider (442) and can rotate relative to the slider (442), and the other end of which is connected to the rotating frame (20).

7. The aperture drive motor according to claim 6, characterized in that, The positioning groove (441) is provided on the top or bottom surface of the slider (442); and / or 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).

8. The aperture drive motor according to claim 6, characterized in that, The rotating frame (20) is provided with a lever (21) corresponding to the connecting arm (443). The axial direction of the lever (21) is parallel to the optical axis direction, and one end of the lever (21) is inserted into the connecting arm (443) along the optical axis direction and rotatably connected to the connecting arm (443).

9. The aperture drive motor according to claim 3, characterized in that, The drive component (40) also 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).

10. The aperture drive motor according to claim 9, characterized in that, The drive component (40) also includes: The reset component (47) is used to connect the movable claw (42) to the conductive connector (46).

11. The aperture drive motor according to claim 3, characterized in that, At least a portion of the transmission part (44), the fixed chuck (41), the movable chuck (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).

12. The aperture drive motor according to claim 11, characterized in that, The inner surface of the housing assembly (10) has a mounting groove (13) with the opening direction of the mounting groove (13) facing 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 to the transmission part (44).

13. The aperture drive motor according to claim 12, characterized in that, The aperture drive motor also includes a bracket (50), at least a portion of which is disposed 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) facing the transmission part (44) is provided with a support protrusion or a support ball corresponding to the transmission part (44).

14. The aperture drive motor according to any one of claims 1 to 13, characterized in that, The housing assembly (10) includes: Support base (14); The support portion (15) and the support base (14) are both annular. The support base (14) is disposed on the support portion (15) and surrounds the receiving cavity (11) with the support portion (15). The drive assembly (40) is disposed on the support portion (15), and the blade assembly (30) is connected to the side of the support base (14) away from the support portion (15).

15. The aperture drive motor according to claim 14, characterized in that, The supporting part (15) includes: The base (151) is annular, and the support (14) is disposed on the base (151); A bottom cover (152) is disposed on the side of the base (151) away from the support (14), and at least a portion of the drive assembly (40) is disposed between the base (151) and the bottom cover (152).

16. The aperture drive motor according to claim 15, characterized in that, 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 by the protrusions (60) and slots (61).

17. The aperture drive motor according to claim 15, characterized in that, 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 work together to provide the rotating frame (20) with a force toward the bearing part (15) and parallel to the optical axis.

18. The aperture drive motor according to claim 15, characterized in that, The aperture drive motor also includes at least one second ball (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 (80), and the second ball (80) can move along the rolling grooves (81).

19. The aperture drive motor according to claim 14, characterized in that, The circumferential outer 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 driving assembly (40) and they correspond one-to-one. The connecting protrusions (22) have levers (21) extending toward the driving assembly (40). The rotating frame (20) is connected to the driving assembly (40) through the levers (21). The circumferential inner wall of the support base (14) is provided with a limiting groove (141) corresponding to the connecting protrusions (22). At least a portion of the connecting protrusions (22) extends into the limiting groove (141) and can move along the limiting groove (141).

20. The aperture drive motor according to any one of claims 1 to 13, characterized in that, The aperture drive motor also includes a limiting member (90), which is disposed between the inner circumferential wall of the housing assembly (10) and the outer circumferential wall of the rotating frame (20).

21. A camera module, characterized in that, The aperture drive motor includes any one of claims 1 to 20.

22. An electronic device, characterized in that, Includes the camera module as described in claim 21.

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