WO2023155894A1 - 反射驱动机构和摄像模组 - Google Patents
反射驱动机构和摄像模组 Download PDFInfo
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- WO2023155894A1 WO2023155894A1 PCT/CN2023/076835 CN2023076835W WO2023155894A1 WO 2023155894 A1 WO2023155894 A1 WO 2023155894A1 CN 2023076835 W CN2023076835 W CN 2023076835W WO 2023155894 A1 WO2023155894 A1 WO 2023155894A1
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- WIPO (PCT)
- Prior art keywords
- coil
- driving
- drive
- reflective
- magnet
- Prior art date
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
Definitions
- This application relates to the field of camera modules, in particular to reflection drive mechanisms and camera modules.
- the structure of the camera module has become complicated, and the size thereof has also increased, resulting in an increase in the size of the mobile electronic device installed with the camera module.
- the weight of the component itself and the weight of other components fixed to the component should also be considered. Driving heavier objects requires greater driving force and higher power consumption.
- An advantage of the present application is to provide a reflective driving mechanism and a camera module, wherein the reflective driving mechanism drives a reflective element of the camera module to rotate through a compact structural arrangement to achieve optical anti-shake of the camera module.
- the reflective anti-shake mechanism has a relatively small size, which is beneficial to the miniaturization of the camera module.
- a reflection driving mechanism which includes:
- the reflective driving housing has a receiving cavity formed therein and a light inlet and a light outlet connected to the receiving cavity;
- the supporting frame that is rotatably installed in the receiving cavity through the rotating support assembly, which wherein, the support frame has at least one support groove recessedly formed on its top surface;
- the bearing base is rotatably installed on the support frame, wherein the bearing base includes a bearing body and at least one rotating shaft protruding from the bearing body and extending laterally, and the bearing body has a reflector suitable for mounting
- the mounting part on which the component is mounted, the at least one rotating shaft is fittingly installed in the at least one supporting groove, so that the bearing seat can be made through the pivotal connection between the at least one rotating shaft and the at least one supporting groove is rotatable relative to the support frame;
- a driving unit wherein the driving unit is adapted to drive the bearing seat to rotate relative to the support frame around the first axis set around the at least one rotation axis, and the driving unit is adapted to drive the bearing
- the seat rotates with respect to the reflection drive housing around a second axis perpendicular to the first axis to drive the support frame relative to the reflection through the pivotal connection between the bearing seat and the support frame.
- the drive housing rotates about the second axis.
- the at least one rotating shaft includes a first rotating shaft and a second rotating shaft respectively extending outward from opposite sides of the carrying body, the first rotating shaft and the The second rotating shaft is arranged coaxially, the at least one support groove includes a first support groove and a second support groove formed in a concave manner on the top surface of the support frame, the first support groove and the second support groove Coaxially arranged, wherein, the first rotating shaft is fitfully installed in the first supporting groove, and the second rotating shaft is fittingly installed in the second supporting groove.
- the first rotation shaft and the second rotation shaft are located on the top of the bearing body.
- the support frame includes a first support portion, a second support portion, and a frame connection portion extending between the first support portion and the second support portion, wherein the The first support groove is recessedly formed on the top surface of the first support portion, and the second support groove is recessedly formed on the top surface of the second support portion.
- the outer surface of the first rotating shaft is in contact with at least two surfaces of the first supporting groove
- the outer surface of the second rotating shaft is in contact with at least two surfaces of the second supporting groove. At least two faces are in contact.
- the reflection driving mechanism further includes a first rotation limiting portion for limiting the rotation angle of the bearing seat relative to the support frame.
- the rotation support assembly includes a rotation track formed between the support frame and the reflection drive housing and at least three balls disposed in the rotation track.
- the reflection driving mechanism further includes a second rotation limiting portion for limiting the rotation angle of the supporting frame relative to the reflection driving housing.
- the drive unit includes a first drive magnet and a second drive magnet disposed on the bottom surface of the carrying body, and are disposed on the reflective drive housing and respectively correspond to The first drive coil and the second drive coil of the first drive magnet and the second drive magnet, wherein the first drive magnet and the first drive coil constitute a first coil-magnet pair, the The second drive magnet and the second drive coil form a second coil-magnet pair.
- the reflective drive housing includes an upper cover and a base that are engaged with each other, the base has a base through hole formed through the bottom of the base, and the drive unit further includes a The circuit board of the reflecting part is fixed in the through hole of the base, and the first driving coil and the second driving coil are electrically connected to the circuit board of the reflecting part.
- the first coil-magnet pair and the second coil-magnet pair are arranged symmetrically with respect to the central axis set by the carrying body.
- the first force generated by the first coil-magnet pair acting on the bearing base and the first force acting on the bearing base generated by the second coil-magnet pair determines the movement of the bearing seat relative to the support frame
- the first moment acting on the bearing seat generated by the first coil-magnet pair and the first moment generated by the second coil-magnet pair The moment difference of the second moment acting on the bearing base determines the movement of the bearing base and the supporting frame relative to the reflection driving housing.
- the reflective drive mechanism further includes a reflective part magnetic attraction member for attracting the bearing seat and the support frame to the reflective drive housing, wherein the reflective part
- the magnetic attraction member includes a frame magnetic attraction magnet fixed to the support frame and a reflective magnetic sheet arranged on the reflective drive housing, so that the frame magnetic attraction magnet and the reflective magnetic sheet can The magnetic attraction force between the first and second driving magnets and the reflective part magnetic sheet makes the support frame attract to the reflective drive housing, and, through the The magnetic attraction force between the first and second driving magnets and the magnetically conductive sheet of the reflective part makes the carrying seat attract to the reflective drive housing.
- the reflective driving mechanism further includes a reed, and the reed includes an external fixing part fixed on the top surface of the supporting frame, an external fixing part fixed on the top surface of the bearing seat The inner fixing part, and the spring wire part extending between the inner fixing part and the outer fixing part.
- the bearing seat is centered and held in the supporting frame by the reed.
- the external fixing part includes a first external fixing part, a second external fixing part, a third external fixing part and a fourth external fixing part
- the internal fixing part includes a first internal fixing part part, a second internal fixing part, a third internal fixing part and a fourth internal fixing part
- the spring wire part includes a first spring wire and a second spring wire, wherein the first external fixing part, the second The outer fixing part is fixed on one side of the top surface of the first supporting part, the first inner fixing part and the second inner fixing part are fixed on one side of the top surface of the bearing seat, and the first The spring wire connects the first external fixing part, the second external fixing part, the first internal fixing part and the second internal fixing part to form a first reed part; the third external fixing part, The fourth external fixing part is fixed on the opposite side of the top surface of the second support part, and the third internal fixing part and the fourth internal fixing part are fixed on the top surface of the bearing seat.
- the second spring wire connects the third outer fixing part, the fourth outer fixing part, the third inner fixing part, and the fourth inner fixing part to form a second reed part, wherein the first reed part and the second reed part are arranged symmetrically with respect to the second axis.
- the first spring wire is provided with a first spring wire rotation axis
- the first spring wire is symmetrical about the first spring wire rotation axis
- the second spring wire is provided with A second spring wire rotation axis
- the second spring wire is symmetrical with respect to the second spring wire rotation axis, wherein the first spring wire rotation axis and the second spring wire rotation axis are the same as the first axis Towards.
- the application provides a reflective driving mechanism, which includes:
- the reflective driving housing has a receiving cavity formed therein and a light inlet and a light outlet connected to the receiving cavity;
- the drive unit includes a first drive magnet and a second drive magnet arranged on the bearing seat, and is arranged on the reflective drive housing and corresponds to the first drive magnet and the second drive magnet respectively.
- the first driving coil and the second driving coil wherein, the first driving magnet and the first driving coil form a first coil-magnet pair, and the second driving magnet and the second driving coil form a second Coil-magnet pair.
- the first coil-magnet pair and the second coil-magnet pair are arranged symmetrically with respect to the central axis set by the bearing base.
- the first coil-magnet pair and the second wire The coil-magnet pair is adapted to cooperate to drive the bearing base to rotate around the first axis relative to the support frame, and the first coil-magnet pair and the second coil-magnet pair are adapted to cooperate to driving the bearing base to rotate relative to the reflective drive housing around a second axis perpendicular to the first axis to drive the supporting frame relative to each other through the pivotal connection between the bearing base and the supporting frame
- the housing is driven to rotate around the second axis in reflection.
- the reflection driving mechanism In the reflection driving mechanism according to the present application, the first force generated by the first coil-magnet pair acting on the bearing base and the first force acting on the bearing base generated by the second coil-magnet pair The resultant force of the two forces determines the movement of the bearing seat relative to the support frame, the first moment acting on the bearing seat generated by the first coil-magnet pair and the first moment generated by the second coil-magnet pair The moment difference of the second moment acting on the bearing base determines the movement of the bearing base and the supporting frame as a whole relative to the reflection driving housing.
- the reflective drive housing includes an upper cover and a base that are engaged with each other, the base has a base through hole formed through the bottom of the base, and the drive unit further includes a The circuit board of the reflecting part is fixed in the through hole of the base, and the first driving coil and the second driving coil are electrically connected to the circuit board of the reflecting part.
- the driving unit includes a third driving magnet disposed on the bearing seat and between the first driving magnet and the second driving magnet, and disposed on The reflective driving housing corresponds to the third driving coil of the third driving magnet, and the third driving coil is located between the first driving coil and the second driving coil, wherein the third The drive coil and the third drive magnet constitute the third coil-magnet pair.
- the first coil-magnet pair and the second coil-magnet pair are distributed symmetrically with respect to the third coil-magnet pair.
- the third coil-magnet pair is suitable for driving the bearing seat to rotate around the first axis relative to the supporting frame
- the first coil-magnet pair and the first coil-magnet pair are suitable for cooperating to drive the bearing base to rotate relative to the reflective drive housing around a second axis perpendicular to the first axis to pass between the bearing base and the support frame
- the pivotal connection drives the support frame to rotate around the second axis relative to the reflective drive housing.
- the first torque generated by the first coil-magnet pair and acting on the bearing base is the same as the second moment acting on the bearing base generated by the second coil-magnet pair.
- the difference between the moments of the moments determines the bearing seat and the support frame as a whole relative to the Reflecting the movement of the drive housing, wherein the direction of the first force acting on the bearing seat generated by the first coil-magnet pair is the same as the direction of the first force acting on the bearing seat generated by the second coil-magnet pair
- the direction of the second acting force is opposite.
- the magnitude of the first acting force is equal to the magnitude of the second acting force.
- the first driving coil and the second driving coil are connected in series, the winding direction of the first driving coil is opposite to the winding direction of the second driving coil, and
- the magnetic poles of the first driving magnet and the second driving magnet have the same orientation.
- the first driving coil and the second driving coil are connected in series, the winding direction of the first driving coil is the same as that of the second driving coil, and The magnetic poles of the first driving magnet and the second driving magnet are in opposite directions.
- the reflective drive mechanism further includes a rotating support assembly through which the support frame is rotatably installed in the storage cavity, and the support frame has a recessed ground At least one support groove formed on its top surface, the bearing seat includes a bearing body and at least one rotating shaft protruding from the bearing body and extending laterally, the bearing body has a reflective element suitable for mounting thereon The at least one rotating shaft is fittingly installed in the at least one supporting groove, so that the bearing base is relatively opposite to the The support frame is rotatable.
- the at least one rotating shaft includes a first rotating shaft and a second rotating shaft respectively extending outward from opposite sides of the carrying body, the first rotating shaft and the The second rotating shaft is arranged coaxially, and the at least one support groove includes a first support groove and a second support groove which are recessedly formed on the top surface of the support frame, and the first support groove and the second support groove The grooves are arranged coaxially, wherein the first rotating shaft is fitfully installed in the first supporting groove, and the second rotating shaft is fittingly installed in the second supporting groove, wherein the The first rotation axis and the second rotation axis are located on the top of the bearing body.
- the support frame includes a first support portion, a second support portion, and a frame connection portion extending between the first support portion and the second support portion, wherein the The first support groove is recessedly formed on the top surface of the first support portion, and the second support groove is recessedly formed on the top surface of the second support portion.
- the reflective drive mechanism further includes a first rotation limiter for limiting the rotation angle of the bearing seat relative to the support frame, and The second rotation limiting part is used to limit the rotation angle of the supporting frame relative to the reflection driving housing.
- the reflective drive mechanism further includes a reflective part magnetic attraction member for attracting the bearing seat and the support frame to the reflective drive housing, wherein the reflective part
- the magnetic attraction member includes a frame magnetic attraction magnet fixed to the support frame and a reflective magnetic sheet arranged on the reflective drive housing, so that the frame magnetic attraction magnet and the reflective magnetic sheet can The magnetic attraction force between the first and second driving magnets and the reflective part magnetic sheet makes the support frame attract to the reflective drive housing, and, through the The magnetic attraction force between the first and second driving magnets and the magnetically conductive sheet of the reflective part makes the carrying seat attract to the reflective drive housing.
- the reflective driving mechanism further includes a reed, and the reed includes an external fixing part fixed on the top surface of the supporting frame, an external fixing part fixed on the top surface of the bearing seat The inner fixing part, and the spring wire part extending between the inner fixing part and the outer fixing part, wherein the bearing seat is centrally held in the supporting frame by the spring leaf.
- a camera module which includes:
- a photosensitive component arranged on the light propagation path of the lens module.
- FIG. 1A illustrates a schematic diagram of a camera module according to an embodiment of the present application.
- FIG. 1B illustrates a schematic diagram of another embodiment of a camera module according to an embodiment of the present application.
- FIG. 1C illustrates a schematic diagram of another embodiment of a camera module according to an embodiment of the present application.
- Fig. 2 illustrates a schematic perspective view of a reflection module according to an embodiment of the present application.
- FIG. 3A illustrates a schematic exploded perspective view of a reflection driving mechanism according to an embodiment of the present application.
- Fig. 3B illustrates a bottom-view exploded perspective view of the reflection drive mechanism according to an embodiment of the present application.
- FIG. 4A illustrates a schematic top perspective view of a bearing seat according to an embodiment of the present application.
- Fig. 4B illustrates a schematic bottom perspective view of the bearing seat according to an embodiment of the present application.
- FIG. 5A illustrates a schematic top perspective view of a support frame according to an embodiment of the present application.
- Fig. 5B illustrates a schematic bottom perspective view of the support frame according to an embodiment of the present application.
- FIG. 6A is a schematic perspective view of the reflective driving mechanism with the upper cover removed according to the embodiment of the present application.
- FIG. 6B illustrates a schematic cross-sectional view of the reflection driving mechanism according to an embodiment of the present application after the upper cover is removed.
- Fig. 7 illustrates a schematic top view of a base according to an embodiment of the present application.
- Fig. 8 illustrates a schematic diagram of the driving force of two coil-magnet pairs according to an embodiment of the present application.
- FIG. 9 illustrates a schematic cross-sectional view of another reflection driving mechanism according to an embodiment of the present application with the upper cover removed.
- Fig. 10 illustrates a schematic diagram of driving forces of three coil-magnet pairs according to an embodiment of the present application.
- FIG. 11A illustrates a schematic diagram of three coil-magnet pairs according to an embodiment of the application.
- FIG. 11B illustrates another schematic diagram of three coil-magnet pairs according to an embodiment of the present application.
- a camera module which includes a reflective module 10 , a lens module 20 and a photosensitive component 30 , wherein the reflective module 10 is used for Changing the propagation direction of the imaging light from the object to make the imaging light point to the lens module 20, the lens module 20 is used to converge the imaging light to the photosensitive component 30, and the photosensitive component 30 is used to output the formed image.
- the function of the reflection module 10 is to divert the imaging light from the subject, wherein the lens module 20 is held on the reflection path of the reflection module 10 for To receive the imaging light from the reflection module 10 , and the photosensitive element 30 is held on the light propagation path of the lens module 20 for receiving the imaging light from the lens module 20 .
- the reflective module 10 includes a reflective drive mechanism 12 and a reflective element 11 mounted on the reflective drive mechanism 12, wherein the reflective element 11 is suitable for reflecting light to fold the imaging optical path of the camera module 1 , reducing the overall height dimension of the camera module 1, so that the camera module 1 can be placed horizontally into the mobile electronic device.
- the reflective element 11 is adapted to bend the incident imaging light by 90° before entering the lens module 20 . It is worth mentioning that, considering manufacturing tolerances, the angle at which the reflective element 11 bends the imaging light may have an error within 1°, which should be understood by those skilled in the art.
- the reflective element 11 may be implemented as a reflective mirror or a prism (eg, a triangular prism).
- the reflective driving mechanism 12 is adapted to drive the reflective element 11 to move, so as to change the propagation path of the imaging light, and further realize the anti-shake function of the camera module 1 .
- the reflective driving mechanism 12 is adapted to drive the reflective element 11 around the optical axis (Z-axis) perpendicular to the optical axis.
- the first axis 122X (X axis) and the second axis 123Y (Y axis) perpendicular to the optical axis (Z axis) and the first axis 122X (X axis) are rotated.
- the prism 111 when the reflective element 11 is implemented as a prism 111, the prism 111 includes a light incident surface 1111, a light reflecting surface 1112, and a light exit surface 1113, and the light incident surface 1111 of the prism 111 and its light exit surface 1113
- the light reflection surface 1112 of the prism 111 is perpendicular to each other and the light incident surface 1111 and the light exit surface 1113 are inclined at an angle of 45°, so that the imaging light can be turned at 90° at the light reflection surface 1112, output from the light exit surface 1113 in a manner perpendicular to the light exit surface 1113 .
- the lens module 20 includes an optical lens 22 , the optical axis of the optical lens 22 is the optical axis of the lens module 20 , and the optical axis of the optical lens 22 is arranged along the Z-axis direction.
- the light reflected by the reflective module 10 enters the optical lens 22 and converges to the photosensitive component 30 through the optical lens 22 .
- the optical lens 22 has a fixed focal length. As shown in FIG. 1A , the optical lens 22 includes a lens barrel 221 and a lens group 222 accommodated in the lens barrel 221, The lens group 222 includes at least one optical lens, and the optical lens 22 can move relative to the photosensitive component 30 along the optical axis of the optical lens 22, or along the direction of light perpendicular to the optical lens 22. move in the direction of the axis.
- the optical lens 22 has a variable focal length (that is, the focal length of the lens module 20 is variable), as shown in FIG. 1B and FIG. 1C, the optical lens 22 includes at least A fixed group 223 and at least one movable group 224, the distance between the at least one fixed group 223 and the photosensitive component 30 along the optical axis direction of the optical lens 22 is fixed, and the at least one movable group The distance between the group 224 and the at least one fixed group 223 or the photosensitive element 30 along the optical axis of the optical lens 22 is adjustable. Specifically, referring to FIG.
- the optical lens 22 includes a fixed group 223 and a movable group 224
- the fixed group 223 includes a first lens barrel 2231 and a lens contained in the first lens barrel 2231.
- the first lens group 2232, the first lens group 2232 includes at least one optical lens
- the movable group 224 includes a second lens barrel 2241 and a second lens group 2242 accommodated in the second lens barrel 2241
- the second lens group 2242 includes at least one optical lens.
- the position of the fixed group 223 relative to the photosensitive assembly 30 is fixed, and the position of the movable group 224 relative to the fixed group 223 is adjustable, so that The focal length of the optical lens 22 is adjustable. Further, referring to FIG.
- the movable group 224 further includes a third lens barrel 2243 and a third lens group 2244 accommodated in the third lens barrel 2243, and the third lens group 2244 includes at least one optical Lens, in other words, in the embodiment shown in FIG. 1C, the optical lens 22 includes a fixed group 223 and two movable groups 224, and the two movable groups 224 are relative to the fixed group 223 in the The positions in the optical axis direction of the optical lens 22 can be adjusted respectively.
- the active group 224 includes a zoom group and a focus group.
- the zoom group is set between the fixed group 223 and the focus group; in another specific example , the focus group is disposed between the fixed group 223 and the zoom group, and the present application is not limited thereto.
- the fixed group 223 and the movable group 224 of the optical lens 22 can also be other numbers, which can be set according to the imaging requirements of the camera module 1 .
- the lens module 20 may also include a lens driving mechanism, wherein the optical lens 22 is installed in the lens driving mechanism 21, and the lens driving mechanism 21 is suitable for driving the movement of the optical lens 22 to change the intensity of the imaging light. transmission path, and then realize such as anti-shake, focusing, variable Focus and other functions.
- the lens driving mechanism 21 is suitable for driving the optical lens 22 to move along its optical axis to realize the focusing function, or to drive the optical lens 22 to move perpendicular to its optical axis to realize the anti-shake function.
- the lens drive mechanism 21 is suitable for driving the movable group 224 to move along the optical axis of the optical lens 22 to adjust the focal length of the optical lens 22;
- the The lens driving mechanism 21 is adapted to respectively drive the two movable groups 224 (zoom group and focusing group) to move along the optical axis of the optical lens 22 to realize the optical zoom function.
- the photosensitive assembly 30 includes a photosensitive circuit board 31, a photosensitive chip 32 mounted on the photosensitive circuit board 31, an electronic component (not shown in the figure), a filter element bracket 34 and a filter Element 33.
- the photosensitive chip 32 is fixed to the photosensitive circuit board 31 by, for example, bonding and electrically connected to the photosensitive circuit board 31, so that the photosensitive chip 32 receives imaging light for imaging and passes through the The photosensitive circuit board 31 is electrically connected with the mobile electronic device.
- the filter element bracket 34 is fixed to the photosensitive circuit board 31 by, for example, bonding
- the filter element 33 is fixed to the filter element bracket 34 by, for example, bonding. Therefore, it is held on the photosensitive path of the photosensitive chip 32 , and the filter element 33 filters the imaging light entering the photosensitive chip 32 .
- the photosensitive component 30 and the lens module 20 are fixed to each other, and the reflection module 10 and the lens module 20 are fixed to each other, thereby forming a periscope camera module 1 with an anti-shake function.
- the photosensitive assembly 30 is fixed to the lens driving housing 211 of the lens module 20 by, for example, bonding through the filter element bracket 34 , and the reflective module 10 is driven by reflection of the reflective module 10
- the housing 121 is fixed to the lens driving housing 211 of the lens module 20 (for example, the reflection driving housing 121 of the reflection module 10 and the lens driving housing 211 are fixed to each other through an adhesive medium, or , the reflection driving housing 121 and the lens driving housing 211 are fixed by integral molding), in other words, the reflection module 10 and the lens driving module 20 adopt the same housing, and the reflection element 11 and the optical lens 22 are installed in the same casing to form an integrated periscope camera module 1 .
- the present application provides a reflective drive mechanism 12 suitable for driving the reflective element 11 to rotate, so that while realizing the anti-shake function, the size of the reflective drive mechanism 12 is relatively small and can maintain Miniaturization of the camera module 1 .
- the reflection driving mechanism 12 includes a reflection driving housing 121 , a bearing seat 122 , a supporting frame 123 , a reed 124 , a driving unit 125 , a magnetic attraction member 127 of a reflection part, and a rotation support assembly 128 .
- the imaging light is reflected by the reflective module 10 and transmitted to the optical lens 22, and the outgoing direction of the reflective module 10 is the same as the light emitted by the optical lens 22.
- the axis directions are the same, both are the Z-axis direction, wherein, the incident direction of the imaging light incident on the reflective module 10 is the Y-axis direction (the second axis 123Y direction), and the outgoing direction and the incident direction of the imaging light
- the perpendicular direction is the X-axis direction (the first axis 122X direction).
- the reflective driving housing 121 has a housing cavity and a light inlet 1213 and a light outlet 1214 connected to the housing cavity, wherein the imaging light from the object to be photographed Enter the reflective driving housing 121 from the light entrance 1213 , reflect on the reflective element 11 , and leave the reflective driving housing 121 through the light exit 1214 .
- the reflective driving housing 121 includes an upper cover 1211 and a base 1212, and the upper cover 1211 is fixed to the base 1212 to form the The installation space of the reflex drive housing 121 is used to install other components of the reflex drive mechanism 12 .
- the upper cover 1211 includes an upper cover main body 12111 and a first upper cover side wall 12112 , a second upper cover side wall 12113 , and a third upper cover side wall 12111 extending integrally around the upper cover main body 12111 .
- the upper cover side wall 12114 and the fourth upper cover side wall 12115, the upper cover main body 12111, the first upper cover side wall 12112, the second upper cover side wall 12113, and the third upper cover side wall 12114 and the fourth upper cover sidewall 12115 form an accommodating cavity of the upper cover 1211 for accommodating the base 1212 .
- the first upper cover side wall 12112 and the second upper cover side wall 12113 are arranged on opposite sides of the upper cover main body 12111 , and the third The upper cover side wall 12114 connects the first upper cover side wall 12112 and the second upper cover side wall 12113 and is arranged on one side of the upper cover main body 12111, and the fourth upper cover side wall 12115 connects The first upper cover side wall 12112 and the second upper cover side wall 12113 are disposed on the other side of the upper cover main body 12111 opposite to the third upper cover side wall 12114 .
- the side wall 12115 of the fourth upper cover is located on the side of the reflection module 10 where the imaging light is emitted, that is, the side wall 12115 of the fourth upper cover is located on the side of the upper cover 1211 close to the lens module 20 .
- the upper cover 1211 includes an upper cover light inlet 121111 formed on the upper cover main body 12111 and an upper cover light outlet 121151 formed on the fourth upper cover side wall 12115, the upper cover light inlet 121111 provides the The incident channel of the imaging light, the light outlet 121151 of the upper cover provides a channel for the imaging light to exit.
- the light entrance 121111 of the upper cover communicates with the light output opening 121151 of the upper cover to provide a space for the movement of the reflective element 11, thereby reducing the reflection drive housing 121 to provide The escape space of the reflection element 11 reduces the size of the reflection driving mechanism 12 .
- the light inlet 121111 of the upper cover and the light outlet 121151 of the upper cover are not connected, thereby reducing stray light entering the lens module 20 .
- the base 1212 includes a base 12121 and a first base side wall 12122 surrounding the base 12121 and fixed on the base 12121, a second base side wall 12123, a third base side wall 12124 and a fourth base The seat side wall 12125, so that the base 1212 has an upward opening, and forms an installation space together with the upper cover 1211.
- the first base side wall 12122 and the second base side wall 12123 are disposed on opposite sides of the base 12121, and the third base
- the side wall 12124 connects the first base side wall 12122 and the second base side wall 12123 and is arranged on one side of the base 12121
- the fourth base side wall 12125 connects the first base
- the side wall 12122 and the second base side wall 12123 are disposed on the other side of the base 12121 opposite to the third base side wall 12124 .
- the fourth base side wall 12125 is located on the side where the reflection module 10 emits the imaging light, that is, the fourth base side wall 12125 is located on the side of the base 1212 close to the lens module 20 .
- the base 1212 includes a base light outlet 121251 formed on the fourth base side wall 12125 , and the base light outlet 121251 provides a passage for the imaging light to exit.
- the base 1212 is composed of the base 12121 and the first base side wall 12122, the second base side wall 12123, the third base side wall 12124 and the fourth base side wall 12125
- the upward opening formed by surrounding and the upper cover light entrance 121111 of the upper cover 1211 jointly constitute the light entrance 1213 of the reflective driving housing 121 .
- the base light outlet 121251 of the base 1212 and the upper cover light outlet 121151 of the upper cover 1211 jointly constitute the light outlet of the reflective driving housing 121 1214.
- the reflective element 11 is installed in the reflective driving mechanism 12 by being fixed to the bearing seat 122, and the bearing seat 122 is installed in the support frame 123 and Supported directly or indirectly by the support frame 123 , the support frame 123 is installed on the reflective driving housing 121 and is directly or indirectly supported by the reflective driving housing 121 .
- the bearing seat 122 is rotatably installed on the support frame 123, and the support frame 123 is also rotatably installed in the reflective driving housing 121, so that After the reflective element 11 is installed on the bearing seat 122, when the bearing seat 122 and/or the support frame 123 rotates relative to the reflective drive housing 121, the reflective element 11 is also driven relative to The reflection drives the casing 121 to rotate to realize the optical image stabilization of the camera module 1 .
- the carrying seat 122 includes a carrying body 1221 having a mounting portion, and the mounting portion is recessedly formed on the carrying seat 122 close to the reflection module 10 On the side where the imaging light is emitted, the reflective element 11 is fixed to the bearing seat 122 by being mounted on the mounting portion.
- the bearing seat 122 is adapted to be driven by the driving unit 125 to realize rotation around the first axis 122X (X axis) and/or the second axis 123Y (Y axis), Further, the reflecting element 11 is driven to rotate around the first axis 122X (X axis) and/or the second axis 123Y (Y axis).
- the support frame 123 includes a first support portion 1231, a second support portion 1232 and a frame connection portion 1233 connecting the first support portion 1231 and the second support portion 1232, the first support portion 1231 and the second support portion 1232, the first A supporting part 1231 , the frame connecting part 1233 and the second supporting part 1232 are integrally formed by injection molding to form a U-shaped opening, and the U-shaped opening faces to the side of the bearing seat 122 .
- the bearing seat 122 is disposed in the U-shaped opening of the support frame 123 and is surrounded by the support frame 123, and the bearing seat 122 is adapted to rotate around the first axis 122X (X axis) relative to the support frame 123 rotate.
- the frame connecting part 1233 includes a connected connecting part main body 12331 and a reinforcing member 12332, and the two ends of the connecting part main body 12331 and the reinforcing member 12332 are respectively connected to the first
- the supporting part 1231 is connected to the second supporting part 1232, and the reinforcing member 12332 strengthens the structural strength of the supporting frame 123, and prevents the first supporting part 1231 and the second supporting part 1232 from being concave.
- the bearing seat 122 is rotatably mounted on the support frame 123 .
- the carrying seat 122 also includes two sides extending from the two sides of the carrying body 1221 to The direction of the first supporting part 1231 and the second supporting part 1232 protrude to form the first rotating shaft 1222 and the second rotating shaft 1223, and the first shaft 122X passes through the first rotating shaft 1222 and the first rotating shaft 1222.
- the rotation axis center of the second rotation shaft 1223 , the bearing seat 122 rotates around the rotation axis formed by the first rotation shaft 1222 and the second rotation shaft 1223 .
- the top surface of the support frame 123 is recessed downward to form a first support groove 12311 and a second support groove 12321, and the first support groove 12311 and the second support groove 12321 are respectively symmetrically formed on the first support portion 1231 and the inner side of the second supporting part 1232, the first rotating shaft 1222 is supported in the first supporting groove 12311, and the second rotating shaft 1223 is supported in the second supporting groove 12321, so that the The bearing base 122 is supported by the support frame 123 . At least a part of the top surface of the support frame 123 is recessed downward to form the first support groove 12311 and the second support groove
- the assembly of the reflective driving mechanism 12 becomes simple, and it is only necessary to stack the components along the height direction (that is, the Y-axis direction).
- the bottom surfaces of the first rotating shaft 1222 and the second rotating shaft 1223 in contact with the support frame 123 have a curved shape, and the curved shape may be a part of a cylindrical surface or a part of a spherical surface or other types of surface shapes.
- the bottom surface of the first rotating shaft 1222 is in contact with at least two surfaces of the first supporting groove 12311, and the bottom surface of the second rotating shaft 1223 is in contact with at least two surfaces of the second supporting groove 12321, so that the The first rotating shaft 1222 is supported on the first supporting groove 12311 and rotates in the first supporting groove 12311, and the second rotating shaft 1223 is supported on the second supporting groove 12321 and rotates in the second supporting groove 12311. Rotate in slot 12321.
- the first support groove 12311 and the second support groove 12321 may be in the shape of a V-shaped groove, a rectangular groove, a U-shaped groove, etc., and the present application is not limited thereto.
- the bearing seat 122 rotates around the first axis 122X by relying on the rotation of the first rotation shaft 1222 in the first support groove 12311 and the rotation of the second rotation shaft 1223 in the second support groove 12321 , in order to make the bearing seat 122 rotatable, the rotation axis of the first rotation axis 1222 and the rotation axis of the second rotation axis 1223 are coaxially arranged, and the axes of the two are at the same height, further,
- the rotation of the bearing base 122 can drive the reflective element 11 to have a larger rotation angle when rotating around the first axis 122X, and the first rotation axis 1222 and the second rotation axis 1223 are located on the bearing base 122 top.
- the bearing base 122 is rotatably connected to the support frame 123 through a pivot connection structure so that the bearing base 122 can rotate relative to the support frame 123 .
- the pivotal connection structure refers to the mutual cooperation between the shaft and the slot to The first object configured with the shaft can be rotated relative to the second object configured with the slot.
- the pivot connection structure allows the bearing base 122 to rotate relative to the support frame 123; on the other hand, when the bearing base 122 and the support frame 123 are used When the whole is rotated, the relative positional relationship between the bearing seat 122 and the support frame 123 as a sub-part will not change easily.
- the carrying seat 122 includes the first rotating shaft 1222 and the second rotating shaft 1223 as an example, it should be understood that in the embodiment of the present application, the carrying seat 122 may only include at least one rotating shaft
- the support frame 123 may only be configured with one support slot, so that the bearing seat 122 is relatively The supporting frame 123 can rotate.
- the reflective driving mechanism 12 further includes a first rotation limiter disposed between the bearing base 122 and the support frame 123 .
- a first rotation limiter disposed between the bearing base 122 and the support frame 123 .
- at least a part of the first supporting portion 1231 protrudes toward the direction of the bearing seat 122 to form a first limiting protrusion 12315
- the bearing seat 122 and the second bearing seat 122 At least a part of the opposite side of a supporting portion 1231 is concaved to form a first limiting groove 1224
- the first limiting protrusion 12315 cooperates with the first limiting groove 1224 to limit the bearing seat 122
- the second supporting portion 1232 protrudes toward the direction of the bearing seat 122 to form a second limiting protrusion 12325 , and the side of the bearing seat 122 opposite to the second supporting portion 1232 At least a part of it is recessed to form a second limiting groove 1225, and the second limiting protrusion 12325 cooperates with the second limiting groove 1225 to limit the support seat 122 relative to the supporting frame 123 around the first Rotation angle by which axis 122X (X axis) rotates.
- the first limiting protrusion 12315 is located at the bottom of the first supporting part 1231
- the second limiting protrusion 12325 is located at the bottom of the second supporting part 1232
- the first limiting protrusion 12315 and the second limiting protrusion 12325 are symmetrically arranged on the inner surface of the support frame 123, so that the distance between the first rotation limiting part and the first axis 122X is opposite. The farther away, so that the rotation angle of the bearing seat 122 relative to the support frame 123 around the first axis 122X (X axis) is larger.
- the maximum rotation angle of the bearing base 122 relative to the support frame 123 around the first axis 122X (X axis) is 2°.
- the support frame 123 is rotatably installed in the reflective driving housing 121 .
- the support frame 123 is The over-rotation support assembly 128 is rotatably installed in the reflective driving housing 121 , so that the supporting frame 123 can rotate relative to the reflective driving housing 121 . That is to say, in some embodiments of the present application, the rotation support assembly 128 is arranged between the support frame 123 and the reflective driving housing 121 , so that the support frame 123 passes through the rotation support assembly 128 It is supported by the reflective driving housing 121 and rotates around the second axis 123Y (Y axis) relative to the driving housing by using the rotating support assembly 128 .
- the rotating support assembly 128 includes a rotating track 1281 and at least three balls 1282 disposed in the rotating track 1281 , at least three balls 1282 are in contact with the rotating track 1281 .
- the rotating track 1281 includes an upper track groove formed on the frame bottom surface of the support frame 123 and a lower track groove formed on the reflective driving housing 121, the upper track groove and the lower track groove clamp at least three of the There are balls 1282 therein, and at least three of the balls 1282 are in contact with the upper track groove and the lower track groove.
- the number of the balls 1282 may be three, four, five or more, and when the number of the balls 1282 is greater than or equal to three, at least three balls 1282 are provided for supporting the support frame 123 Support plane.
- the intervals between the three balls 1282 are 120°.
- the rotating support assembly 128 includes four balls 1282 , and the upper track groove of the rotating track 1281 is formed in a concave manner.
- the first upper track groove 12312 and the second upper track groove 12313 on the bottom surface of the first support part 1231 and the third upper track groove 12322 and the fourth upper track groove 12323 formed in the bottom surface of the second support part 1232 are recessed.
- the lower track grooves of the rotating track 1281 include a first lower track groove 121212, a second lower track groove 121213, a third lower track groove 121214, and a fourth lower track groove formed in a recess on the upper surface of the base 12121 of the base 1212. 121215.
- the first upper track groove 12312 corresponds to the first lower track groove 121212 and holds a ball 1282 therein
- the second upper track groove 12313 corresponds to the second lower track groove 121213 and holds A ball 1282 is contained therein
- the third upper track groove 12322 corresponds to the third lower track groove 121214 and holds a ball 1282 therein
- the fourth upper track groove 12323 is connected to the fourth lower track groove 12323.
- the track groove 121215 corresponds to and holds a ball 1282 therein.
- the first lower track groove 121212, the second lower track groove 121213, the third lower track groove 121214 and the fourth lower track groove 121215 are arc-shaped track grooves and are divided into Distributed on a circular track, the second axis 123Y (Y axis) passes through the center of the circular track, corresponding to it, the first upper track groove 12312, the second upper track groove 12313, the third The upper track groove 12322 and the fourth upper track groove 12323 are also arc track grooves and are distributed on circular tracks of the same size.
- the reflective drive mechanism 12 further includes between the second rotation limiter. Specifically, referring to FIG. 5A to FIG. 7 , at least a part of the outer surface of the first support portion 1231 close to the base 1212 is concaved to form a third limiting groove 12314, and the base 1212 is connected to the base 1212. At least a part of the opposite side of the first supporting portion 1231 protrudes to form a third limiting protrusion 121221, and the third limiting groove 12314 cooperates with the third limiting protrusion 121221 to limit the supporting frame.
- the third limiting groove 12314 is formed on the outer surface of the first supporting part 1231
- the fourth limiting groove 12324 is formed on the outer surface of the second supporting part 1232
- the third limiting groove 12324 is formed on the outer surface of the second supporting part 1232.
- the limiting protrusion 121221 is formed on the inner side of the first base side wall 12122
- the fourth limiting protrusion 121231 is formed on the inner side of the second base side wall 12123, so that the second rotation limiting The distance from the second axis 123Y is relatively far, so that the rotation angle of the support frame 123 relative to the base 1212 around the second axis 123Y (Y axis) is larger.
- the maximum rotation angle of the supporting frame 123 relative to the base 1212 around the second axis 123Y (Y axis) is 4°.
- the driving unit 125 is arranged between the bearing seat 122 and the base 1212, so as to drive the bearing seat 122 to move, and through the first rotating shaft 1222, the second The rotating shaft 1223, the first support groove 12311 and the second support groove 12321 realize that the bearing seat 122 rotates around the first axis 122X (X axis) relative to the support frame 123;
- the contact between the support frames 123 drives the support frames 123 to move, and the support frame 123 rotates relative to the base 1212 around the second axis 123Y (Y axis) through the rotating support assembly 128 .
- the bearing seat 122 and the support frame 123 are pivotally connected so that the bearing seat 122 can rotate relative to the support frame 123, and the support frame 123 and the reflective drive housing 121 through a rotating support assembly 128 so that the support frame 123 can rotate relative to the reflective drive housing 121 .
- the bearing seat 122 and the supporting frame 123 can also be realized through a rotating support assembly 128
- the rotatable installation, or in other words, the rotatable installation can also be realized through a pivot connection structure between the support frame 123 and the reflection driving housing 121, but the bearing seat 122 is realized by a pivot connection structure.
- the rotatable installation between the support frame 123 and the rotatable installation between the support frame 123 and the reflection drive housing 121 by rotating the support assembly 128 is preferred, because: on the one hand When the bearing base 122 and the supporting frame 123 pivot around the second axis 123Y as a whole, the pivot connection relationship between the bearing base 122 and the supporting frame 123 can ensure that Relative movement will not easily occur, that is, the anti-shake control of the camera module 1 around the second axis 123Y direction is more precise; on the other hand, the driving unit 125 is arranged on the bearing seat 122 and the base 1212, that is, the driving unit 125 is far away from the pivotal connection structure, so that only relatively small force can be used to drive the bearing seat 122 to rotate relative to the support frame 123 That is, the anti-shake of the camera module 1 in the direction around the first axis 122X is easier to drive and control.
- the drive unit 125 is implemented as at least two coil-magnet pairs, and at least two of the coil-magnet pairs include At least two coils in one of them and at least two magnets arranged in the other of the bearing seat 122 and the base 1212 , at least two coils correspond to at least two magnets.
- at least two coils correspond to at least two magnets.
- the driving unit 125 includes two coil-magnet pairs, and the driving unit 125 includes a bottom surface of the bearing base fixed on the bearing base 122
- the first driving magnet 1252 and the second driving magnet 1254 of 122B correspond to the first driving magnet 1252 and the second driving magnet 1254 respectively and are directly or indirectly fixed on the base 12121 of the base 1212.
- the first driving coil 1251 and the second driving coil 1253 are symmetrically disposed on the bottom surface 122B of the bearing seat.
- the reflective driving mechanism 12 includes a The reflector circuit board 126, the reflector circuit board 126 is fixed on the base 1212, the first drive coil 1251 and the second drive coil 1253 are fixed and electrically connected to the reflector circuit board 126, so that The reflector circuit board 126 provides current to the first driving coil 1251 and the second driving coil 1253 .
- the base 12121 of the base 1212 has a base through hole 121211, the reflector circuit board 126 is fixed on the bottom surface of the base 12121, and the reflector circuit board 126 and the base through hole 121211 form a coil accommodation cavity , the first driving coil 1251 and the second driving coil 1253 are accommodated in the coil accommodation cavity.
- the bottom surface 122B of the bearing base 122 is recessed inwardly to form a first bearing base magnet groove 1226 and a second bearing base magnet groove 1227, and the first driving magnet 1252 is fixed in the first bearing base magnet groove 1226 , the second driving magnet 1254 is fixed in the magnet groove 1227 of the second bearing seat, so as to reduce the size increase of the reflective driving mechanism 12 caused by the volume of the magnet.
- the first driving coil 1251 is arranged opposite to the first driving magnet 1252 to form a first coil-magnet pair
- the second driving coil 1253 is arranged opposite to the second driving magnet 1254 to form a second coil-magnet pair
- the first coil-magnet pair provides a first driving force F1 for the bearing base 122
- the second coil-magnet pair provides a second driving force for the bearing base 122
- F2 use F1 and F2 to represent the magnitude and direction of the first driving force and the second driving force, for example, when the direction of the first driving force is opposite to that of the second driving force, one of F1 and F2 is a positive value, and the other is Negative value; the vertical distance from the first driving force F1 to the rotation axis of the supporting frame 123 is the first moment arm, the first moment arm is L1, and the second driving force F2 is to the supporting frame 123 The vertical distance of the rotation axis of is the second moment arm, and the second moment arm is L2.
- the direction of the first driving force F1 and the direction of the second driving force F2 are perpendicular to the first axis 122X (X axis) and the second axis 123Y (Y axis). ), the rotation axis of the support frame 123 is the second axis 123Y (Y axis).
- the base 122 is stationary relative to the support frame 123; when Fo is not equal to 0, the bearing base 122 rotates around the first axis 122X (X axis) relative to the support frame 123, and the positive or negative value of Fo represents the The direction in which the bearing seat 122 rotates.
- the bearing seat 122 rotates relative to the support frame 123, and the support frame 123 rotates relative to the base 1212, so that the bearing base 122 rotates relative to the base 1212.
- the base 1212 rotates in two directions, that is, the bearing base 122 rotates relative to the base 1212 around a first axis 122X (X axis) and a second axis 123Y (Y axis).
- the distance between the first moment arm L1 and the second moment arm L2 is equal, and when the first driving force F1 and the second driving force F2 have the same direction and the same magnitude, the The bearing base 122 rotates around the first axis 122X (X axis) relative to the support frame 123 , and the support frame 123 is stationary relative to the base 1212 , so that the bearing base 122 rotates around the base 1212 relative to the base 1212
- the first shaft 122X (X axis) rotates; when the first driving force F1 is opposite to the second driving force F2 and equal in magnitude, the bearing seat 122 is stationary relative to the supporting frame 123, and the supporting frame 123 rotates around the second axis 123Y (Y axis) relative to the base 1212, so that the bearing seat 122 rotates around the second axis 123Y (Y axis) relative to the base 1212; when the first When the driving force F1 is not equal to the second driving force F2, the bearing seat
- the first driving magnet 1252 and the second driving magnet 1254 are adapted to be formed on the same magnet, that is to say, in some embodiments of the present application, the first driving magnet 1254
- the magnet 1252 and the second driving magnet 1254 have an integral structure, essentially a magnet, correspondingly, in this embodiment, the magnet groove 1226 of the first bearing base is connected to the magnet groove 1227 of the second bearing base The first driving magnet 1252 and the connected The second driving magnet 1254 is described.
- the reflective driving mechanism 12 further includes a position sensing unit 129 .
- the position sensing unit 129 includes a first position sensing element 1291 and a second position sensing element 1292 fixed and electrically connected to the circuit board 126 of the reflection part.
- the position sensing element 1291 and the second position sensing element 1292 obtain the position information of the magnet on the bearing base 122 to determine the position information of the bearing base 122, specifically, the first position sensing element 1291 Set opposite to the first driving magnet 1252 , the second position sensing element 1292 is set opposite to the second driving magnet 1254 .
- the first position sensing element 1291 is disposed eccentrically in the first driving coil 1251
- the second position sensing element 1292 is disposed eccentrically in the second driving coil 1253 .
- the reflective drive mechanism 12 further includes a reflective part magnetic attraction member 127 .
- the reflector magnetic attraction member 127 is disposed between the bottom surface of the bearing seat 122 and the base 12121 of the base 1212 and between the bottom surface of the support frame 123 and the base 12121 of the base 1212 , so that the bearing seat 122 and the support frame 123 are attracted to the base 12121 by magnetic attraction force, preventing the bearing base 122 and the support frame 123 from falling due to the movement of the reflection driving mechanism 12 .
- the reflective part magnetic member 127 includes a reflective part magnetic sheet 1271, a frame magnetic magnet 1273 and a bearing magnetic magnet 1272.
- the frame magnetic magnet 1273 is fixed on the frame bottom surface 123B of the support frame 123, and the reflector
- the first magnetic sheet 1271 is directly or indirectly fixed on the base 12121, and at least three of the balls 1282 are held on the base by the magnetic force between the frame magnetic magnet 1273 and the reflective magnetic sheet 1271.
- the support frame 123 can be supported on the base 12121 by at least three balls 1282;
- the bottom surface 122B of the seat is opposite to the magnetically conductive sheet 1271 of the reflective part, and then the bearing seat 122 can be supported on the support by the magnetic attraction force between the bearing magnet 1272 and the magnetically conductive sheet 1271 of the reflective part. frame123.
- the frame magnet 1273 includes a first frame magnet 12731 and a second frame magnet 12732, and the bottom surface of the first support part 1231 is concaved inward to form a first support.
- the second support frame magnetic suction groove 12326 is formed in a concave manner, the first frame magnetic suction magnet 12731 is set in the first support frame magnetic suction groove 12316, and the second frame magnetic suction magnet 12732 is set in the The second supporting frame is magnetically attracted to the slot 12326 , thereby reducing the size of the reflective driving mechanism 12 .
- the magnet 1272 carrying magnetic force may be the first driving magnet 1252 and the second driving magnet 1254 .
- the reflective part magnetic sheet 1271 is attached to the side of the reflective part circuit board 126 away from the frame magnet 1273, so that the reflective part magnetic sheet 1271 is in contact with While the magnets are attracted to each other, the magnetically conductive sheet 1271 of the reflective part can also provide structural reinforcement for the circuit board 126 of the reflective part.
- the magnetically conductive sheet 1271 of the reflection part is made of a material capable of attracting each other with the magnet, such as iron sheet.
- the reflection driving mechanism 12 further includes a reed 124, that is, a sheet-like structure with elasticity components. As shown in Fig. 3A, Fig. 3B and Fig.
- the reed 124 includes an outer fixing part 1241, an inner fixing part 1243 and a spring wire part 1242 connecting the outer fixing part 1241 and the inner fixing part 1243, the The outer fixing part 1241 is fixed on the frame top surface 123A of the supporting frame 123, and the inner fixing part 1243 is fixed on the bearing seat top surface 122A of the bearing seat 122, so that the bearing seat 122 is held on the supporting frame 123 , in an embodiment of the present application, through the reed 124 , the bearing seat 122 is centrally set in the support frame 123 .
- the outer fixing part 1241 includes a first outer fixing part 12411, a second outer fixing part 12412, a third outer fixing part 12413 and a fourth outer fixing part 12414
- the inner fixing part 1243 includes a first inner fixing part 12431 , a second inner fixing part 12432 , a third inner fixing part 12433 and a fourth inner fixing part 12434
- the spring wire part 1242 includes a first spring wire 12421 and a second spring wire 12422 .
- the first outer fixing part 12411 and the second outer fixing part 12412 are fixed on the top surface of the first supporting part 1231
- the first inner fixing part 12431 and the second inner fixing part 12432 are fixed on the top surface of the first supporting part 1231.
- the top surface 122A of the bearing seat 122 is close to the side of the first supporting part 1231, and the first spring wire 12421 is connected to the first external fixing part 12411, the second external fixing part 12412, the first An inner fixing part 12431 and the second inner fixing part 12432 form the first reed part; the third outer fixing part 12413 and the fourth outer fixing part 12414 are fixed on the top surface of the second supporting part 1232 , the third internal fixation part 12433, the fourth internal fixation part 12434
- the top surface 122A of the bearing seat fixed on the bearing base 122 is close to the side of the second supporting part 1232, and the second spring wire 12422 is connected to the third external fixing part 12413, the fourth external fixing part 12414,
- the third inner fixing part 12433 and the fourth inner fixing part 12434 form a second reed part.
- the first reed portion and the second reed portion are axisymmetric about a second axis 123Y (
- the carrying seat 122 further includes four first fixing protrusions 122A1 formed on the top surface 122A of the carrying seat, the first internal fixing part 12431 , the second internal fixing part 12432, the third internal fixing part 12433 and the fourth internal fixing part 12434 are respectively fixed on the top surface 122A of the bearing seat by being fixed to the first fixing protrusion 122A1;
- the support frame 123 also includes a The four second fixing protrusions 123A1 on the frame top surface 123A, the first outer fixing part 12411, the second outer fixing part 12412, the third outer fixing part 12413 and the fourth outer fixing part
- the parts 12414 are respectively fixed to the frame top surface 123A by being fixed to the second fixing protrusions 123A1.
- the first spring wire 12421 has a first spring wire rotation axis 124211, the first spring wire 12421 is symmetrical about the first spring wire rotation axis 124211, and the second spring wire
- the wire 12422 has a second spring wire rotation axis 124221, the second spring wire 12422 is symmetrical about the second spring wire rotation axis 124221, the first spring wire rotation axis 124211 and the second spring wire rotation axis 124221 It is in the same direction as the first axis 122X (X axis), so that when the bearing seat 122 rotates around the first axis 122X (X axis) relative to the support frame 123, the reed 124 has relatively low resistance to rotation. Small.
- an outer connecting portion 12415 is integrally extended between the first outer fixing portion 12411 and the third outer fixing portion 12413 close to the frame connecting portion 1233, close to the frame
- An inner connection part 12435 integrally extends between the first inner fixing part 12431 and the third inner fixing part 12433 of the connecting part 1233, so that the first reed part and the second reed part are connected , thereby providing convenience for the installation of the reed 124 .
- the drive unit 125 includes three coil-magnet pairs, and the drive unit 125 includes a bottom surface of the bearing seat 122 fixed to the bearing base.
- the first driving magnet 1252, the second driving magnet 1254, and the third driving magnet 1256 of 122B correspond to the first driving magnet 1252, the second driving magnet 1254, and the third driving magnet 1256 respectively and directly or indirectly fixed to the base of the base 1212
- the first driving coil 1251, the second driving coil 1253 and the third driving coil 1255 on 12121, the first driving magnet 1252 and the second driving magnet 1254 are symmetrically arranged on the bottom surface of the bearing base 122B, and the first The three driving magnets 1256 are disposed in the middle of the first driving magnet 1252 and the second driving magnet 1254 .
- the reflector circuit board 126 is fixed on the bottom surface of the base 12121, the reflector circuit board 126 and the base through hole 121211 form a coil accommodation cavity, the first driving coil 1251, the second The driving coil 1253 and the third driving coil 1255 are accommodated in the coil accommodation cavity.
- the bearing seat bottom surface 122B of the bearing base 122 is inwardly recessed to form a first bearing base magnet groove 1226, a second bearing base magnet groove 1227 and a third bearing base magnet groove 1228, and the first driving magnet 1252 is fixed on the In the magnet groove 1226 of the first bearing seat, the second driving magnet 1254 is fixed in the magnet groove 1227 of the second bearing seat, and the third driving magnet 1256 is fixed in the magnet groove 1228 of the third bearing seat, so that Reducing the size of the reflex drive mechanism 12 increases due to the volume of the magnet.
- the first driving coil 1251 is arranged opposite to the first driving magnet 1252 to form a first coil-magnet pair
- the second driving coil 1253 is arranged opposite to the second driving magnet 1254 to form a second coil-magnet pair
- the third driving coil 1255 is arranged opposite to the third driving magnet 1256 to form a third coil-magnet pair.
- the first coil-magnet pair provides the bearing base 122 with a first driving force F1
- the second coil-magnet pair provides the bearing base 122 with a second driving force F2.
- the third coil-magnet pair provides the bearing seat 122 with a third driving force F3, where F1, F2, and F3 represent the magnitude and direction of the first driving force, the second driving force, and the third driving force, for example,
- F1, F2, and F3 represent the magnitude and direction of the first driving force, the second driving force, and the third driving force, for example
- F1, F2, and F3 represent the magnitude and direction of the first driving force, the second driving force, and the third driving force, for example,
- the direction of the first driving force F1, the direction of the second driving force F2 and the direction of the third driving force F3 are perpendicular to the first axis 122X (X axis) and the The plane where the second axis 123Y (Y axis) is located, the rotation axis of the support frame 123 is the second axis 123Y (Y axis).
- Fz the bearing base 122 is stationary relative to the support frame 123; when Fz is not equal to 0, the bearing base 122 rotates around the first axis 122X (X axis) relative to the support frame 123,
- the positive or negative value of Fz indicates the direction in which the bearing seat 122 rotates.
- the bearing seat 122 rotates relative to the support frame 123, and the support frame 123 rotates relative to the base 1212, so that the bearing base 122 rotates relative to the base 1212.
- the base 1212 rotates in two directions, that is, the bearing base 122 rotates relative to the base 1212 around a first axis 122X (X axis) and a second axis 123Y (Y axis).
- the distance between the first moment arm L1 and the second moment arm L2 is equal, and the distance L3 from the third driving force F3 to the rotation axis of the support frame 123 is zero.
- the third driving force F3 provided by the third coil-magnet pair located in the middle is used to drive the bearing seat 122 to rotate around the first axis 122X (X axis) relative to the base 1212 , and is symmetrically arranged on both sides.
- the first coil-magnet pair and the second coil-magnet pair on the side are suitable for driving the bearing base 1212 to rotate around the first axis 122X (X axis) and the second axis 123Y (Y axis).
- the third coil-magnet pair is suitable for driving the bearing base 122 to rotate around the first axis 122X relative to the supporting frame 123, and the first coil - The pair of magnets and the second coil - The pair of magnets is adapted to cooperate to drive the bearing base 122 to rotate relative to the reflective driving housing 121 around the second axis 123Y perpendicular to the first axis 122X to pass
- the pivotal connection between the bearing base 122 and the support frame 123 drives the support frame 123 to rotate relative to the reflective driving housing 121 around the second axis 123Y.
- the first torque generated by the first coil-magnet pair acts on the bearing seat 122 and the first torque generated by the second coil-magnet pair acts on the bearing seat 122.
- the moment difference between the second moment of 122 determines the movement of the carrying seat 122 and the support frame 123 relative to the reflective driving housing 121 as a whole.
- the support frame 123 rotates relative to the base 1212 around the second axis 123Y (Y axis), so that the The bearing base 122 rotates around the second axis 123Y (Y axis) relative to the base 1212; when the first driving force F1 and the second driving force F2 are not equal in magnitude, the first driving force F1 , the second driving force F2 and the third driving force F3 drive the bearing base 122 relative to the base 1212 around the first axis 122X (X axis) and the second axis 123Y (Y axis) ) to rotate.
- the direction of the driving force provided by the first coil-magnet pair is always opposite to the direction of the driving force provided by the second coil-magnet pair, thereby reducing the loss of driving force.
- the magnetic pole directions of the first driving magnet 1252 and the second driving magnet 1254 are the same, the current directions in the first driving coil 1251 and the second driving coil 1253 are opposite (setting the The winding methods of the first driving coil 1251 and the second driving coil 1253 are consistent), so as to provide driving forces in opposite directions, so as to always maintain the opposite direction of current, as shown in FIG. 11B .
- the winding manner of the first driving coil 1251 and the second driving coil 1253 can also be adjusted so that the effects generated by the first coil-magnet pair and the second coil-magnet pair act on the The direction of the acting force of the bearing seat 122 is opposite.
- the reflective driving mechanism 12 also has a fool-proof mechanism.
- the first driving coil 1251 and the second driving coil 1253 are connected in series and the coil winding directions of the first driving coil 1251 and the second driving coil 1253 are opposite, so that when the first When the direction of the magnetic pole of the driving magnet 1252 is opposite to that of the second driving magnet 1254 , the direction of the current in the first driving coil 1251 and the second driving coil 1253 is the same, so as to provide a driving force in the opposite direction.
- the first driving coil 1251 and the second driving coil 1253 are connected in series, and the winding direction of the first driving coil 1251 is opposite to that of the second driving coil 1253 , and the first drive magnet 1252 and the The magnetic poles of the second driving magnets 1254 have the same orientation.
- the first driving coil 1251 and the second driving coil 1253 may also be connected in series, and the winding direction of the first driving coil 1251 is the same as that of the second driving coil 1251.
- the winding directions of the coils 1253 are the same, and the magnetic poles of the first driving magnet 1252 and the second driving magnet 1254 are facing opposite directions.
- the three coil-magnet pairs, the first coil-magnet pair and the second coil magnet pair respectively drive the bearing base 122 around the first axis relative to the support frame 123 122X (X-axis) rotates, driving the support frame 123 to rotate relative to the base 1212 around a second axis 123Y (Y-axis).
- the driving forces of the first driving force F1 and the second driving force F2 have opposite directions and are equal in magnitude, so that the resultant force of the first driving force F1 and the second driving force F2 is 0, and only
- the supporting frame 123 can be driven to rotate around the second axis 123Y (Y axis) relative to the base 1212, and then, the supporting seat 122 is controlled relative to the supporting frame 123 by the magnitude of the third driving force F3 Rotate around the first axis 122X (X axis), and control the rotation of the bearing seat 122 relative to the support frame 123 around the first axis 122X (X axis) through the direction of the third driving force F3 direction.
- the first driving magnet 1252, the second driving magnet 1254 and the third driving magnet 1256 are suitable to be formed on the same magnet, at this time, the first bearing seat The magnet groove 1226, the second bearing seat magnet groove 1227 and the third bearing seat magnet groove 1228 are connected to accommodate the connected first driving magnet 1252, the second driving magnet 1254 and the third driving magnet groove 1254. Drive magnet 1256.
- the reflective driving mechanism 12 further includes a position sensing unit 129 .
- the position sensing unit 129 includes a first position sensing element 1291 and a second position sensing element 1292 that are fixed and electrically connected to the circuit board 126 of the reflector.
- the element 1291 and the second position sensing element 1292 obtain the position information of the magnet on the bearing seat 122 to determine the position information of the bearing seat 122, specifically, the first position sensing element 1291 and the
- the first driving magnet 1252 is disposed opposite to each other, and the second position sensing element 1292 is disposed opposite to the second driving magnet 1254 .
- the first position sensing element 1291 is disposed eccentrically in the first driving coil 1251
- the second position sensing element 1292 is disposed eccentrically in the second driving coil 1253 .
- the reflector magnetic member 127 is disposed between the bottom surface of the bearing seat 122, the bottom surface of the support frame 123 and the base 12121 of the base 1212, so that the The bearing seat 122 and the support frame 123 are attracted to the base by magnetic attraction 12121, preventing the bearing base 122 and the supporting frame 123 from falling due to the movement of the reflection driving mechanism 12 .
- the reflective part magnetic member 127 includes a reflective part magnetic sheet 1271, a frame magnetic magnet 1273 and a bearing magnetic magnet 1272.
- the frame magnetic magnet 1273 is fixed on the frame bottom surface 123B of the support frame 123, and the reflector
- the first magnetic sheet 1271 is directly or indirectly fixed on the base 12121, and at least three of the balls 1282 are held on the base by the magnetic force between the frame magnetic magnet 1273 and the reflective magnetic sheet 1271.
- the support frame 123 can be supported on the base 12121 by at least three balls 1282;
- the bottom surface 122B of the seat is opposite to the magnetically conductive sheet 1271 of the reflective part, and then the bearing seat 122 can be supported on the support by the magnetic attraction force between the bearing magnet 1272 and the magnetically conductive sheet 1271 of the reflective part. frame123.
- the frame magnet 1273 includes a first frame magnet 12731 and a second frame magnet 12732, and the bottom surface of the first support part 1231 is concaved inward to form a first support.
- Frame magnetic suction groove 12316, the bottom surface of the second support part 1232 is recessed to form a second support frame magnetic suction groove 12326, and the first frame magnetic suction magnet 12731 is set in the first support frame magnetic suction groove In 12316, the second frame magnetic magnet 12732 is disposed in the second support frame magnetic groove 12326, so as to reduce the size of the reflective driving mechanism 12.
- the magnets 1272 carrying magnetic force may be the first driving magnet 1252 , the second driving magnet 1254 and the third driving magnet 1256 .
- the reflective part magnetic sheet 1271 is attached to the side of the reflective part circuit board 126 away from the frame magnet 1273, so that the reflective part magnetic sheet 1271 is in contact with While the magnets are attracted to each other, the magnetically conductive sheet 1271 of the reflective part can also provide structural reinforcement for the circuit board 126 of the reflective part.
- the magnetically conductive sheet 1271 of the reflection part is made of a material capable of attracting each other with the magnet, such as iron sheet.
- the camera module 1 and its reflective drive mechanism 12 are explained based on the embodiment of the present application, wherein the reflective drive mechanism 12 drives the reflective element 11 of the camera module 1 to rotate through a compact structural arrangement to The optical image stabilization of the camera module 1 is realized. Moreover, the reflective anti-shake mechanism has a relatively small size, which is beneficial to the miniaturization of the camera module 1 .
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Abstract
公开了一种反射驱动机构和摄像模组,其中,所述反射驱动机构通过紧凑的结构布置来驱动摄像模组的反射元件进行旋转以实现摄像模组的光学防抖。并且,所述反射驱动机构具有相对较小的尺寸,有利于所述摄像模组的小型化。
Description
本申请涉及摄像模组领域,尤其涉及反射驱动机构和摄像模组。
随着移动电子设备的普及,被应用于移动电子设备的用于帮助使用者获取影像的摄像模组的相关技术得到了迅猛的发展和进步,摄像模组已经普遍安装在诸如平板电脑、笔记本电脑以及智能手机等移动电子设备中,并且已经将自动调焦(AF)功能、光学防抖(OIS)功能、变焦功能等添加到用于移动终端的摄像模组以满足消费者对于摄像模组的功能越来越多样化的要求。
然而,为了实现各种功能,摄像模组的结构已经变得复杂,尺寸也随之增大,导致安装有摄像模组的移动电子设备的尺寸增大。另外,当需要驱动摄像模组中的其中一个部件进行运动时,该部件自身的重量以及与该部件相固定的其他部件的重量也应当被考虑,驱动更重的物体需要更大的驱动力以及更高的功耗。
因此,期待一种优化的防抖方案以及相应的摄像模组结构。
发明内容
本申请的一优势在于提供一种反射驱动机构和摄像模组,其中,所述反射驱动机构通过紧凑的结构布置来驱动摄像模组的反射元件进行旋转以实现摄像模组的光学防抖。特别地,所述反射防抖机构具有相对较小的尺寸,有利于所述摄像模组的小型化。
通过下面的描述,本申请的其它优势和特征将会变得显而易见,并可以通过权利要求书中特别指出的手段和组合得到实现。
为实现上述至少一优势,本申请提供一种反射驱动机构,其包括:
反射驱动壳体,具有形成于其内的收容腔以及连通于所述收容腔的入光口和出光口;
旋转支撑组件;
通过所述旋转支撑组件被可转动地安装于所述收容腔内的支撑框架,其
中,所述支撑框架具有凹陷地形成于其顶表面的至少一支撑槽;
可转动地安装于所述支撑框架的承载座,其中,所述承载座包括承载主体和自所述承载主体突出地且侧向地延伸的至少一旋转轴,所述承载主体具有适于安装反射元件于其上的安装部,所述至少一旋转轴契合地安装于所述至少一支撑槽内,以通过所述至少一旋转轴和所述至少一支撑槽的枢轴连接使得所述承载座相对所述支撑框架可转动;以及
驱动单元,其中,所述驱动单元适于驱动所述承载座相对于所述支撑框架绕所述至少一旋转轴所设定的第一轴进行转动,且所述驱动单元适于驱动所述承载座相对于所述反射驱动壳体绕垂直于所述第一轴的第二轴进行转动以通过所述承载座和所述支撑框架之间的枢轴连接带动所述支撑框架相对于所述反射驱动壳体绕所述第二轴进行转动。
在根据本申请的反射驱动机构中,所述至少一旋转轴包括分别自所述承载主体的相对的两侧往外延伸的第一旋转轴和第二旋转轴,所述第一旋转轴和所述第二旋转轴同轴设置,所述至少一支撑槽包括凹陷地形成于所述支撑框架的顶表面的第一支撑槽和第二支撑槽,所述第一支撑槽和所述第二支撑槽同轴地设置,其中,所述第一旋转轴被契合地安装于所述第一支撑槽内,所述第二旋转轴被契合地安装于所述第二支撑槽内。
在根据本申请的反射驱动机构中,所述第一旋转轴和所述第二旋转轴位于所述承载主体的顶部。
在根据本申请的反射驱动机构中,所述支撑框架包括第一支撑部、第二支撑部和延伸于所述第一支撑部和所述第二支撑部之间的框架连接部,其中,所述第一支撑槽凹陷地形成于所述第一支撑部的顶表面,所述第二支撑槽凹陷地形成于所述第二支撑部的顶表面。
在根据本申请的反射驱动机构中,所述第一旋转轴的外表面与所述第一支撑槽的至少两个面相接触,所述第二旋转轴的外表面与所述第二支撑槽的至少两个面相接触。
在根据本申请的反射驱动机构中,所述反射驱动机构进一步包括用于限制所述承载座相对于所述支撑框架的转动角度的第一旋转限位部。
在根据本申请的反射驱动机构中,所述旋转支撑组件包括形成于所述支撑框架和所述反射驱动壳体之间的旋转轨道和被设置于所述旋转轨道内的至少三滚珠。
在根据本申请的反射驱动机构中,所述反射驱动机构进一步包括用于限制所述支撑框架相对于所述反射驱动壳体的转动角度的第二旋转限位部。
在根据本申请的反射驱动机构中,所述驱动单元包括被设置于所述承载主体的底表面的第一驱动磁石和第二驱动磁石,以及,被设置于所述反射驱动壳体且分别对应于所述第一驱动磁石和所述第二驱动磁石的第一驱动线圈和第二驱动线圈,其中,所述第一驱动磁石和所述第一驱动线圈构成第一线圈-磁石对,所述第二驱动磁石和所述第二驱动线圈构成第二线圈-磁石对。
在根据本申请的反射驱动机构中,所述反射驱动壳体包括相互扣合的上盖和基座,所述基座具有贯穿地形成于其底部的基底通孔,所述驱动单元还包括被固定于所述基底通孔内的反射部线路板,所述第一驱动线圈和所述第二驱动线圈电连接于所述反射部线路板。
在根据本申请的反射驱动机构中,所述第一线圈-磁石对和所述第二线圈-磁石对相对于所述承载主体所设定的中轴线对称地布设。
在根据本申请的反射驱动机构中,所述第一线圈-磁石对产生的作用于所述承载座的第一作用力与所述第二线圈-磁石对产生的作用于所述承载座的第二作用力的合力决定所述承载座相对于所述支撑框架的运动情况,所述第一线圈-磁石对产生的作用于所述承载座的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座的第二力矩的力矩之差决定所述承载座和所述支撑框架相对于所述反射驱动壳体的运动情况。
在根据本申请的反射驱动机构中,所述反射驱动机构还包括用于将所述承载座和所述支撑框架吸附向所述反射驱动壳体的反射部磁吸构件,其中,所述反射部磁吸构件包括被固定于所述支撑框架的框架磁吸磁石以及被设置于所述反射驱动壳体的反射部导磁片,以通过所述框架磁吸磁石和所述反射部导磁片之间的磁吸作用力以及所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述支撑框架吸附向所述反射驱动壳体,以及,通过所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述承载座吸附向所述反射驱动壳体。
在根据本申请的反射驱动机构中,所述反射驱动机构还包括簧片,所述簧片包括被固定于所述支撑框架的顶表面的外固定部、被固定于所述承载座的顶表面的内固定部,以及,延伸于所述内固定部和所述外固定部之间的簧丝部。
在根据本申请的反射驱动机构中,所述承载座通过所述簧片被置中地保持于所述支撑框架内。
在根据本申请的反射驱动机构中,所述外固定部包括第一外固定部、第二外固定部、第三外固定部和第四外固定部,所述内固定部包括第一内固定部、第二内固定部、第三内固定部和第四内固定部,所述簧丝部包括第一簧丝和第二簧丝,其中,所述第一外固定部、所述第二外固定部固定于所述第一支撑部的顶表面的一侧,所述第一内固定部、所述第二内固定部固定于所述承载座的顶表面的一侧,所述第一簧丝连接所述第一外固定部、所述第二外固定部、所述第一内固定部、所述第二内固定部以形成第一簧片部分;所述第三外固定部、所述第四外固定部固定于所述第二支撑部的顶表面的相对的另一侧,所述第三内固定部、所述第四内固定部固定于所述承载座的顶表面的相对的另一侧,所述第二簧丝连接所述第三外固定部、所述第四外固定部、所述第三内固定部、所述第四内固定部以形成第二簧片部分,其中,所述第一簧片部分与所述第二簧片部分相对于所述第二轴对称地布设。
在根据本申请的反射驱动机构中,所述第一簧丝设有第一簧丝旋转轴,所述第一簧丝关于所述第一簧丝旋转轴对称,所述第二簧丝设有第二簧丝旋转轴,所述第二簧丝关于所述第二簧丝旋转轴对称,其中,所述第一簧丝旋转轴和所述第二簧丝旋转轴与所述第一轴同向。
本申请提供一种反射驱动机构,其包括:
反射驱动壳体,具有形成于其内的收容腔以及连通于所述收容腔的入光口和出光口;
可转动地安装于所述收容腔内的支撑框架;
可转动地安装于所述支撑框架的承载座;以及
驱动单元,包括被设置于所述承载座的第一驱动磁石和第二驱动磁石,以及,被设置于所述反射驱动壳体且分别对应于所述第一驱动磁石和所述第二驱动磁石的第一驱动线圈和第二驱动线圈,其中,所述第一驱动磁石和所述第一驱动线圈构成第一线圈-磁石对,所述第二驱动磁石和所述第二驱动线圈构成第二线圈-磁石对。
在根据本申请的反射驱动机构中,所述第一线圈-磁石对和所述第二线圈-磁石对相对于所述承载座所设定的中轴线对称地布设。
在根据本申请的反射驱动机构中,所述第一线圈-磁石对和所述第二线
圈-磁石对适于相配合以驱动所述承载座相对于所述支撑框架绕第一轴进行转动,且所述第一线圈-磁石对和所述第二线圈-磁石对适于相配合以驱动所述承载座相对于所述反射驱动壳体绕垂直于所述第一轴的第二轴进行转动以通过所述承载座和所述支撑框架之间的枢轴连接带动所述支撑框架相对于所述反射驱动壳体绕所述第二轴进行转动。
在根据本申请的反射驱动机构中,所述第一线圈-磁石对产生的作用于所述承载座的第一作用力与所述第二线圈-磁石对产生的作用于所述承载座的第二作用力的合力决定所述承载座相对于所述支撑框架的运动情况,所述第一线圈-磁石对产生的作用于所述承载座的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座的第二力矩的力矩之差决定所述承载座和所述支撑框架作为整体相对于所述反射驱动壳体的运动情况。
在根据本申请的反射驱动机构中,所述反射驱动壳体包括相互扣合的上盖和基座,所述基座具有贯穿地形成于其底部的基底通孔,所述驱动单元还包括被固定于所述基底通孔内的反射部线路板,所述第一驱动线圈和所述第二驱动线圈电连接于所述反射部线路板。
在根据本申请的反射驱动机构中,所述驱动单元包括被设置于所述承载座且位于所述第一驱动磁石和所述第二驱动磁石之间的第三驱动磁石,以及,被设置于所述反射驱动壳体且对应于所述第三驱动磁石的第三驱动线圈,所述第三驱动线圈位于所述第一驱动线圈和所述第二驱动线圈之间,其中,所述第三驱动线圈和所述第三驱动磁石构成所述第三线圈-磁石对。
在根据本申请的反射驱动机构中,所述第一线圈磁石对和所述第二线圈磁石对相对于所述第三线圈-磁石对对称地分布。
在根据本申请的反射驱动机构中,所述第三线圈-磁石对适于驱动所述承载座相对于所述支撑框架绕第一轴进行转动,所述第一线圈-磁石对和所述第二线圈-磁石对适于相配合以驱动所述承载座相对于所述反射驱动壳体绕垂直于所述第一轴的第二轴进行转动以通过所述承载座和所述支撑框架之间的枢轴连接带动所述支撑框架相对于所述反射驱动壳体绕所述所述第二轴进行转动。
在根据本申请的反射驱动机构中,所述第一线圈-磁石对产生的作用于所述承载座的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座的第二力矩的力矩之差决定所述承载座和所述支撑框架作为整体相对于所述
反射驱动壳体的运动情况,其中,所述第一线圈-磁石对产生的作用于所述承载座的第一作用力的方向与所述第二线圈-磁石对产生的作用于所述承载座的第二作用力的方向相反。
在根据本申请的反射驱动机构中,所述第一作用力的大小等于所述第二作用力的大小。
在根据本申请的反射驱动机构中,所述第一驱动线圈和所述第二驱动线圈相互串联,所述第一驱动线圈的绕线方向与所述第二驱动线圈的绕线方向相反,且所述第一驱动磁石和所述第二驱动磁石的磁极朝向相同。
在根据本申请的反射驱动机构中,所述第一驱动线圈和所述第二驱动线圈相互串联,所述第一驱动线圈的绕线方向与所述第二驱动线圈的绕线方向相同,且所述第一驱动磁石和所述第二驱动磁石的磁极朝向相反。
在根据本申请的反射驱动机构中,所述反射驱动机构还包括旋转支撑组件,所述支撑框架通过所述旋转支撑组件被可转动地安装于所述收容腔内,所述支撑框架具有凹陷地形成于其顶表面的至少一支撑槽,所述承载座包括承载主体和自所述承载主体的突出地且侧向地延伸的至少一旋转轴,所述承载主体具有适于安装反射元件于其上的安装部,所述至少一旋转轴契合地安装于所述至少一支撑槽内,以通过所述至少一旋转轴和所述至少一支撑槽的枢轴连接使得所述承载座相对所述支撑框架可转动。
在根据本申请的反射驱动机构中,所述至少一旋转轴包括分别自所述承载主体的相对的两侧往外地延伸的第一旋转轴和第二旋转轴,所述第一旋转轴和所述第二旋转轴同轴设置,所述至少一支撑槽包括凹陷地形成于所述支撑框架的顶表面的第一支撑槽和第二支撑槽,所述第一支撑槽和所述第二支撑槽同轴地设置,其中,所述第一旋转轴被契合地安装于所述第一支撑槽内,所述第二旋转轴被契合地安装于所述第二支撑槽内,其中,所述第一旋转轴和所述第二旋转轴位于所述承载主体的顶部。
在根据本申请的反射驱动机构中,所述支撑框架包括第一支撑部、第二支撑部和延伸于所述第一支撑部和所述第二支撑部之间的框架连接部,其中,所述第一支撑槽凹陷地形成于所述第一支撑部的顶表面,所述第二支撑槽凹陷地形成于所述第二支撑部的顶表面。
在根据本申请的反射驱动机构中,所述反射驱动机构进一步包括用于限制所述承载座相对于所述支撑框架的转动角度的第一旋转限位部,以及,用
于限制所述支撑框架相对于所述反射驱动壳体的转动角度的第二旋转限位部。
在根据本申请的反射驱动机构中,所述反射驱动机构还包括用于将所述承载座和所述支撑框架吸附向所述反射驱动壳体的反射部磁吸构件,其中,所述反射部磁吸构件包括被固定于所述支撑框架的框架磁吸磁石以及被设置于所述反射驱动壳体的反射部导磁片,以通过所述框架磁吸磁石和所述反射部导磁片之间的磁吸作用力以及所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述支撑框架吸附向所述反射驱动壳体,以及,通过所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述承载座吸附向所述反射驱动壳体。
在根据本申请的反射驱动机构中,所述反射驱动机构还包括簧片,所述簧片包括被固定于所述支撑框架的顶表面的外固定部、被固定于所述承载座的顶表面的内固定部,以及,延伸于所述内固定部和所述外固定部之间的簧丝部,其中,所述承载座通过所述簧片被置中地保持于所述支撑框架内。
根据本申请的另一方面,还提供了一种摄像模组,其包括:
如上所述的反射驱动机构;
安装于所述反射驱动机构的反射元件;
被保持于所述反射元件的光反射路径上的镜头模块;以及
被设置于所述镜头模块的光传播路径上的感光组件。
通过对随后的描述和附图的理解,本申请进一步的目的和优势将得以充分体现。
本申请的这些和其它目的、特点和优势,通过下述的详细说明,附图和权利要求得以充分体现。
通过结合附图对本申请实施例进行更详细的描述,本申请的上述以及其他目的、特征和优势将变得更加明显。附图用来提供对本申请实施例的进一步理解,并且构成说明书的一部分,与本申请实施例一起用于解释本申请,并不构成对本申请的限制。在附图中,相同的参考标号通常代表相同部件或步骤。
图1A图示了根据本申请实施例的摄像模组的示意图。
图1B图示了根据本申请实施例的摄像模组的另一种实施例的示意图。
图1C图示了根据本申请实施例的摄像模组的另一种实施例的示意图。
图2图示了根据本申请实施例的反射模块的立体示意图。
图3A图示了根据本申请实施例的反射驱动机构的俯视的立体***示意图。
图3B图示了根据本申请实施例的所述反射驱动机构的仰视的立体***示意图。
图4A图示了根据本申请实施例的承载座的俯视立体示意图。
图4B图示了根据本申请实施例的所述承载座的仰视立体示意图。
图5A图示了根据本申请实施例的支撑框架的俯视立体示意图。
图5B图示了根据本申请实施例的所述支撑框架的仰视立体示意图。
图6A图示了根据本申请实施例的反射驱动机构去除上盖后的立体示意图。
图6B图示了根据本申请实施例的反射驱动机构去除上盖后的剖面示意图。
图7图示了根据本申请实施例的基座的俯视示意图。
图8图示了根据本申请实施例的两个线圈-磁石对的驱动力示意图。
图9图示了根据本申请实施例的另一种反射驱动机构去除上盖后的剖面示意图。
图10图示了根据本申请实施例的三个线圈-磁石对的驱动力示意图。
图11A图示了根据本申请实施例的三个线圈-磁石对的示意图。
图11B图示了根据本申请实施例的三个线圈-磁石对的另一示意图。
下面,将参考附图详细地描述根据本申请的示例实施例。显然,所描述的实施例仅仅是本申请的一部分实施例,而不是本申请的全部实施例,应理解,本申请不受这里描述的示例实施例的限制。
示意性摄像模组
如图1A至图1C所示,根据本申请实施例的摄像模组被阐明,其包括反射模块10、镜头模块20和感光组件30,其中,所述反射模块10用于
改变来自被摄目标的成像光线的传播方向使得成像光线指向所述镜头模块20,所述镜头模块20用于汇聚成像光线于所述感光组件30,所述感光组件30用于输出所成图像。也就是说,在本申请实施例中,所述反射模块10的作用在于对来自被摄目标的成像光线进行转向,其中,所述镜头模块20被保持于所述反射模块10的反射路径上用于接收来自所述反射模块10的成像光线,并且,所述感光组件30被保持于所述镜头模块20的光传播路径上,用于接收来自所述镜头模块20的成像光线。
相应地,所述反射模块10包括反射驱动机构12和被安装于所述反射驱动机构12的反射元件11,其中,所述反射元件11适于反射光线以折叠所述摄像模组1的成像光路,降低所述摄像模组1的整体高度尺寸,使所述摄像模组1可以被横向置入移动电子设备。在一个具体的示例中,所述反射元件11适于将入射的成像光线转折90°后入射至所述镜头模块20。值得一提的是,考虑到制造公差,所述反射元件11对成像光线进行转折的角度可能存在1°以内的误差,对此,本领域普通技术人员应可以理解。
在具体实施方案中,所述反射元件11可被实施为反射镜或者棱镜(例如三棱镜)。所述反射驱动机构12适于驱动所述反射元件11运动,从而改变成像光线的传播路径,进而实现所述摄像模组1的防抖功能。在本申请的一个实施例中,以所述镜头模块20的光轴方向为Z轴方向,所述反射驱动机构12适于驱动所述反射元件11绕着垂直于所述光轴(Z轴)的第一轴122X(X轴)和绕着同时垂直于所述光轴(Z轴)和所述第一轴122X(X轴)的第二轴123Y(Y轴)旋转。
相应地,当所述反射元件11被实施为棱镜111时,所述棱镜111包括光入射面1111、光反射面1112以及光出射面1113,所述棱镜111的光入射面1111与其光出射面1113相互垂直且所述棱镜111的光反射面1112与所述光入射面1111和所述光出射面1113呈45°角倾斜,这样,成像光线能够在所述光反射面1112处发生90°转折,以垂直于所述光出射面1113的方式从所述光出射面1113输出。
所述镜头模块20包括光学镜头22,所述光学镜头22的光轴即是所述镜头模块20的光轴,所述光学镜头22的光轴沿Z轴方向设置。所述反射模块10反射的光线入射至所述光学镜头22并经由所述光学镜头22汇聚至所述感光组件30。
在本申请的一个实施例中,所述光学镜头22具有一固定的焦距,如图1A所示,所述光学镜头22包括镜筒221和容置于所述镜筒221中的透镜组222,所述透镜组222包括至少一光学透镜,所述光学镜头22相对于所述感光组件30可以在沿所述光学镜头22的光轴方向上移动,也可以沿垂直于所述光学镜头22的光轴的方向上移动。
在本申请的其他实施例中,所述光学镜头22具有可变焦距(即,所述镜头模块20的焦距是可变的),如图1B和图1C所示,所述光学镜头22包括至少一固定群组223和至少一活动群组224,所述至少一固定群组223相对于所述感光组件30在沿所述光学镜头22的光轴方向上的距离固定,所述至少一活动群组224相对于所述至少一固定群组223或者所述感光组件30在沿所述光学镜头22的光轴方向上的距离可调整。具体地,参照图1B,所述光学镜头22包括一固定群组223以及一活动群组224,所述固定群组223包括第一镜筒2231和容置于所述第一镜筒2231中的第一透镜组2232,所述第一透镜组2232包括至少一光学透镜,所述活动群组224包括第二镜筒2241和容置于所述第二镜筒2241中的第二透镜组2242,所述第二透镜组2242包括至少一光学透镜。在所述光学镜头22的光轴方向上,所述固定群组223相对于所述感光组件30的位置固定,所述活动群组224相对于所述固定群组223的位置可调整,从而所述光学镜头22的焦距可调。进一步地,参照图1C,所述活动群组224还包括第三镜筒2243和容置于所述第三镜筒2243中的第三透镜组2244,所述第三透镜组2244包括至少一光学透镜,换言之,图1C所示出的实施例中,所述光学镜头22包括一固定群组223及二活动群组224,二所述活动群组224相对于所述固定群组223在所述光学镜头22的光轴方向上的位置分别可以被调整。二所述活动群组224包括变焦群组和对焦群组,在一个具体示例中,所述变焦群组设置于所述固定群组223和所述对焦群组之间;在另一个具体示例中,所述对焦群组设置于所述固定群组223和所述变焦群组之间,本申请并不为此所限。在本申请中,所述光学镜头22的固定群组223、活动群组224也可以是其他数量,可以依据所述摄像模组1的成像需求设定。
所述镜头模块20还可以包括镜头驱动机构,其中,所述光学镜头22被安装于所述镜头驱动机构21内,所述镜头驱动机构21适于驱动所述光学镜头22运动,改变成像光线的传播路径,进而实现诸如防抖、对焦、变
焦等功能。参照图1A所示,所述镜头驱动机构21适于驱动所述光学镜头22沿其光轴方向移动以实现对焦功能,或者驱动所述光学镜头22垂直于其光轴方向移动以实现防抖功能;参照图1B所示,所述镜头驱动机构21适于驱动所述活动群组224沿所述光学镜头22的光轴方向移动以调整所述光学镜头22的焦距;参照图1C所示,所述镜头驱动机构21适于分别驱动二所述活动群组224(变焦群组和对焦群组)沿所述光学镜头22的光轴方向移动以实现光学变焦功能。
在本申请实施例中,所述感光组件30包括感光线路板31以及安装于所述感光线路板31上的感光芯片32、电子元件(图中未示出)、滤光元件支架34以及滤光元件33。在本申请一些示例中,所述感光芯片32通过例如粘接的方式固定于所述感光线路板31并电连接于所述感光线路板31,从而所述感光芯片32接收成像光线进行成像后通过所述感光线路板31与移动电子设备电连接。在本申请一些示例中,所述滤光元件支架34通过例如粘接的方式固定于所述感光线路板31,所述滤光元件33通过例如粘接的方式固定于所述滤光元件支架34从而被保持于所述感光芯片32的感光路径上,所述滤光元件33对进入所述感光芯片32的成像光线进行过滤。
在本申请一些示例中,所述感光组件30与所述镜头模块20相互固定,所述反射模块10与所述镜头模块20相互固定,从而形成具有防抖功能的潜望式摄像模组1。具体地,所述感光组件30通过所述滤光元件支架34与所述镜头模块20的镜头驱动壳体211通过例如粘接的方式固定,所述反射模块10通过所述反射模块10的反射驱动壳体121与所述镜头模块20的镜头驱动壳体211相固定(例如所述反射模块10的反射驱动壳体121与所述镜头驱动壳体211之间通过粘合介质相互粘接固定,或者,所述反射驱动壳体121与所述镜头驱动壳体211之间通过一体成型的方式相固定),换言之,所述反射模块10与所述镜头驱动模块20采用同一壳体,所述反射元件11和所述光学镜头22安装于同一壳体中,形成一体式的潜望式摄像模组1。
如前所述,为实现利用反射元件11的运动实现摄像模组1的防抖,需要反射驱动机构12驱动所述反射元件11改变成像光线的传播路径。为此,本申请提供一种适于驱动所述反射元件11旋转的反射驱动机构12,从而在实现防抖功能的同时,所述反射驱动机构12的尺寸也相对较小,可以维持
摄像模组1的小型化。
示意性反射驱动机构12
如图2至图11B所示,根据本申请实施例的反射驱动机构12被阐明。在本申请中,所述反射驱动机构12包括反射驱动壳体121、承载座122、支撑框架123、簧片124、驱动单元125、反射部磁吸构件127以及旋转支撑组件128。
为了便于说明,如前所述,在本申请中,成像光线经由所述反射模块10反射后出射并传播至所述光学镜头22,所述反射模块10的出射方向与所述光学镜头22的光轴方向一致,均为所述Z轴方向,其中,所述成像光线入射所述反射模块10的入射方向为Y轴方向(第二轴123Y方向),与所述成像光线的出射方向和入射方向均垂直的方向为X轴方向(第一轴122X方向)。
参照图2至图3B,在本申请实施例中,所述反射驱动壳体121具有收容腔以及连通于所述收容腔的入光口1213和出光口1214,其中,来自被摄目标的成像光线从所述入光口1213进入所述反射驱动壳体121内并在所述反射元件11上发生反射并由所述出光口1214离开所述所述反射驱动壳体121。
在本申请一个具体的示例中,如图2至图3B所示,所述反射驱动壳体121包括上盖1211以及基座1212,所述上盖1211与所述基座1212相固定并形成所述反射驱动壳体121的安装空间以安装所述反射驱动机构12的其他元件。
相应地,在该具体示例中,所述上盖1211包括上盖主体12111以及一体延伸于所述上盖主体12111周侧的第一上盖侧壁12112、第二上盖侧壁12113、第三上盖侧壁12114和第四上盖侧壁12115,所述上盖主体12111、所述第一上盖侧壁12112、所述第二上盖侧壁12113、所述第三上盖侧壁12114和所述第四上盖侧壁12115形成所述上盖1211的容纳腔以容置所述基座1212。在所述第一轴122X(X轴)方向上,所述第一上盖侧壁12112和所述第二上盖侧壁12113相对设置于所述上盖主体12111的两侧,所述第三上盖侧壁12114连接所述第一上盖侧壁12112和所述第二上盖侧壁12113并设置于所述上盖主体12111的一侧,所述第四上盖侧壁12115连接
所述第一上盖侧壁12112和所述第二上盖侧壁12113并设置于所述上盖主体12111与所述第三上盖侧壁12114相对的另一侧。所述第四上盖侧壁12115位于所述反射模块10出射所述成像光线的一侧,即,所述第四上盖侧壁12115位于所述上盖1211靠近所述镜头模块20的一侧。
所述上盖1211包括形成于所述上盖主体12111的上盖入光口121111和形成于所述第四上盖侧壁12115的上盖出光口121151,所述上盖入光口121111提供所述成像光线入射的通道,所述上盖出光口121151提供所述成像光线出光的通道。在本申请的一个实施例中,所述上盖入光口121111和所述上盖出光口121151相连通,提供所述反射元件11运动的空间,进而减小所述反射驱动壳体121提供给所述反射元件11的避让空间,减小所述反射驱动机构12的尺寸。在本申请的另一个实施例中,所述上盖入光口121111和所述上盖出光口121151之间不相连,进而减少进入所述镜头模块20的杂光。
所述基座1212包括基底12121和围绕所述基底12121并固定于所述基底12121上的第一基座侧壁12122、第二基座侧壁12123、第三基座侧壁12124以及第四基座侧壁12125,这样,所述基座1212具有一向上的开口,并与所述上盖1211一起形成安装空间。在所述第一轴122X(X轴)方向上,所述第一基座侧壁12122和所述第二基座侧壁12123相对设置于所述基底12121的两侧,所述第三基座侧壁12124连接所述第一基座侧壁12122和所述第二基座侧壁12123并设置于所述基底12121的一侧,所述第四基座侧壁12125连接所述第一基座侧壁12122和所述第二基座侧壁12123并设置于所述基底12121与所述第三基座侧壁12124相对的另一侧。所述第四基座侧壁12125位于所述反射模块10出射所述成像光线的一侧,即,所述第四基座侧壁12125位于所述基座1212靠近所述镜头模块20的一侧。
所述基座1212包括形成于所述第四基座侧壁12125的基座出光口121251,所述基座出光口121251提供所述成像光线出光的通道。所述基座1212由所述基底12121和所述第一基座侧壁12122、所述第二基座侧壁12123、所述第三基座侧壁12124以及所述第四基座侧壁12125合围形成的向上的开口与所述上盖1211的上盖入光口121111共同构成所述反射驱动壳体121的入光口1213。所述基座1212的基座出光口121251与所述上盖1211的上盖出光口121151共同构成所述反射驱动壳体121的所述出光口
1214。
如图2至图6B所示,所述反射元件11通过固定于所述承载座122的方式被安装于所述反射驱动机构12内,所述承载座122被安装于所述支撑框架123中并被所述支撑框架123直接或者间接的支撑,所述支撑框架123被安装于所述反射驱动壳体121并被所述反射驱动壳体121直接或者间接的支撑。更具体地,在本申请实施例中,所述承载座122可转动地安装于所述支撑框架123,所述支撑框架123同样可转动地安装于所述反射驱动壳体121内,这样在所述反射元件11被安装于所述承载座122后,在所述承载座122和/或所述支撑框架123相对于所述反射驱动壳体121发生转动时,所述反射元件11也被带动相对于所述反射驱动壳体121进行转动以实现所述摄像模组1的光学防抖。
在本申请的一个实施例中,参照图4A至图4B,所述承载座122包括具有一安装部的承载主体1221,所述安装部凹陷地形成于所述承载座122靠近所述反射模块10出射所述成像光线的一侧,其中,所述反射元件11通过被安装于所述安装部的方式被固定于所述承载座122。在本申请实施例中,所述承载座122适于被所述驱动单元125驱动以实现绕所述第一轴122X(X轴)和/或所述第二轴123Y(Y轴)的旋转,进而带动所述反射元件11绕所述第一轴122X(X轴)和/或所述第二轴123Y(Y轴)旋转。
参照图5A至图5B,所述支撑框架123包括第一支撑部1231、第二支撑部1232以及连接所述第一支撑部1231和所述第二支撑部1232的框架连接部1233,所述第一支撑部1231、所述框架连接部1233以及所述第二支撑部1232通过注塑的方式一体成型并形成U形开口,所述U形开口朝向所述承载座122一侧。所述承载座122设置于所述支撑框架123的U形开口中并被所述支撑框架123围绕,所述承载座122适于相对所述支撑框架123绕所述第一轴122X(X轴)旋转。在本申请的一个实施例中,所述框架连接部1233包括相连的连接部主体12331和补强构件12332,所述连接部主体12331和所述补强构件12332的两端分别与所述第一支撑部1231和所述第二支撑部1232相连,所述补强构件12332增强所述支撑框架123的机构强度,避免所述第一支撑部1231和所述第二支撑部1232内凹。
参照图6A至图6B,所述承载座122可转动地安装于所述支撑框架123。具体地,所述承载座122还包括自所述承载主体1221的两侧分别向
所述第一支撑部1231和所述第二支撑部1232的方向凸起形成的第一旋转轴1222和第二旋转轴1223,所述第一轴122X穿过所述第一旋转轴1222和所述第二旋转轴1223的旋转轴心,所述承载座122绕所述第一旋转轴1222和所述第二旋转轴1223形成的旋转轴旋转。所述支撑框架123的顶面向下凹陷形成第一支撑槽12311和第二支撑槽12321,所述第一支撑槽12311和所述第二支撑槽12321分别对称的形成于所述第一支撑部1231的内侧和所述第二支撑部1232的内侧,所述第一旋转轴1222支撑于所述第一支撑槽12311,所述第二旋转轴1223支撑于所述第二支撑槽12321,从而所述承载座122支撑于所述支撑框架123。所述支撑框架123的顶面的至少一部分向下凹陷以形成所述第一支撑槽12311和所述第二支撑槽
12321,使得所述反射驱动机构12的组装变得简便,仅需沿高度方向(也即Y轴方向)堆叠各部件即可。
在本申请的一个实施例中,所述第一旋转轴1222和所述第二旋转轴1223与所述支撑框架123接触的底面具有曲面形状,该曲面形状可以是圆柱曲面的一部分、球面的一部分或者其他类型的曲面形状。所述第一旋转轴1222的底面与所述第一支撑槽12311的至少两个面接触,所述第二旋转轴1223的底面与所述第二支撑槽12321的至少两个面接触,从而所述第一旋转轴1222支撑于所述第一支撑槽12311并在所述第一支撑槽12311中旋转,所述第二旋转轴1223支撑于所述第二支撑槽12321并在所述第二支撑槽12321中旋转。所述第一支撑槽12311和所述第二支撑槽12321可以是V形槽、矩形槽、︺形槽等形状,本申请并不为此所限。
所述承载座122依靠所述第一旋转轴1222在第一支撑槽12311中的旋转、所述第二旋转轴1223在所述第二支撑槽12321中的旋转而绕所述第一轴122X转动,为使所述承载座122可以转动,所述第一旋转轴1222的旋转轴和所述第二旋转轴1223的旋转轴同轴设置,两者的轴心处于相同的高度,进一步地,为使所述承载座122的转动可以驱使所述反射元件11在绕第一轴122X转动时具有较大的旋转角度,所述第一旋转轴1222、所述第二旋转轴1223位于所述承载座122的顶部。
也就是说,在本申请实施例中,所述承载座122通过枢轴连接结构可转动地连接于所述支撑框架123以使得所述承载座122可相对于所述支撑框架123可转动。这里,所述枢轴连接结构表示通过轴和槽之间的相互配合以
使得配置有轴的第一对象可以相对于配置有槽的第二对象进行旋转。特别值得一提的是,通过枢轴连接结构一方面可使得所述承载座122可相对于所述支撑框架123发生转动,另一方面,当所述承载座122和所述支撑框架123作为一个整体被转动时,作为子部分的所述承载座122和所述支撑框架123之间的相对位置关系不会轻易发生改变。
应可以理解,虽然以所述承载座122包括第一旋转轴1222和所述第二旋转轴1223为示例,应可以理解,在本申请实施例中,所述承载座122可仅包括至少一个旋转轴,相应地,所述支撑框架123也可以仅配置一个所述支撑槽,以通过所述至少一个旋转轴和所述至少一个支撑槽之间的枢轴连接配合使得所述承载座122相对于所述支撑框架123可发生转动。
为了限制所述承载座122相对于所述支撑框架123之间的转动角度,所述反射驱动机构12还包括设置于所述承载座122和所述支撑框架123之间的第一旋转限位部。具体地,在本申请一些实施例中,所述第一支撑部1231的至少一部分向所述承载座122的方向凸起以形成第一限位凸起12315,所述承载座122与所述第一支撑部1231相对的一侧的至少一部分内凹以形成第一限位凹槽1224,所述第一限位凸起12315与所述第一限位凹槽1224相配合限制所述承载座122相对所述支撑框架123绕第一轴122X(X轴)旋转的旋转角度。同时,所述第二支撑部1232的至少一部分向所述承载座122的方向凸起以形成第二限位凸起12325,所述承载座122与所述第二支撑部1232相对的一侧的至少一部分内凹以形成第二限位凹槽1225,所述第二限位凸起12325与所述第二限位凹槽1225相配合限制所述承载座122相对所述支撑框架123绕第一轴122X(X轴)旋转的旋转角度。
在本申请的一个实施例中,所述第一限位凸起12315位于所述第一支撑部1231的底部,所述第二限位凸起12325位于所述第二支撑部1232的底部,所述第一限位凸起12315与所述第二限位凸起12325对称地设置于所述支撑框架123的内侧面,从而所述第一旋转限位部离所述第一轴122X的距离相对较远,以使所述承载座122相对于所述支撑框架123绕第一轴122X(X轴)旋转的旋转角度更大。在本申请一些实施例中,所述承载座122相对于所述支撑框架123绕第一轴122X(X轴)的最大旋转角度为2°。
进一步地,在本申请实施例中,所述支撑框架123可转动地被安装于所述反射驱动壳体121内。在本申请的一个实施例中,所述支撑框架123通
过旋转支撑组件128被转动地安装于所述反射驱动壳体121内,这样所述支撑框架123可相对于所述反射驱动壳体121发生转动。也就是说,在本申请一些实施例中,所述旋转支撑组件128被设置于所述支撑框架123和所述反射驱动壳体121之间,从而所述支撑框架123通过所述旋转支撑组件128支撑于所述反射驱动壳体121并利用所述旋转支撑组件128相对所述驱动壳体绕第二轴123Y(Y轴)旋转。
在本申请的一个实施例中,所述旋转支撑组件128包括旋转轨道1281和设置在所述旋转轨道1281中的至少三滚珠1282,至少三所述滚珠1282抵触于所述旋转轨道1281。所述旋转轨道1281包括形成于所述支撑框架123的框架底面的上轨道槽和形成于所述反射驱动壳体121的下轨道槽,所述上轨道槽和所述下轨道槽夹持至少三所述滚珠1282于其中,至少三所述滚珠1282与所述上轨道槽和所述下轨道槽相接触。在本申请中,所述滚珠1282的数量可以为三、四、五或者更多,当所述滚珠1282的数量大于等于三时,至少三所述滚珠1282提供用于支撑所述支撑框架123的支撑平面。当所述滚珠1282的数量等于三时,优选地,三个所述滚珠1282的间隔120°。
在本申请的一个具体实施例中,参照图3A、图3B、图6B及图7,所述旋转支撑组件128包括四个所述滚珠1282,所述旋转轨道1281的上轨道槽包括凹陷地形成于所述第一支撑部1231的底面的第一上轨道槽12312、第二上轨道槽12313和凹陷地形成于所述第二支撑部1232的底面的第三上轨道槽12322、第四上轨道槽12323,所述旋转轨道1281的下轨道槽包括凹陷地形成于所述基座1212的基底12121的上表面的第一下轨道槽121212、第二下轨道槽121213、第三下轨道槽121214和第四下轨道槽121215。所述第一上轨道槽12312与所述第一下轨道槽121212相对应并夹持一所述滚珠1282于其中,所述第二上轨道槽12313与所述第二下轨道槽121213相对应并夹持一所述滚珠1282于其中,所述第三上轨道槽12322与所述第三下轨道槽121214相对应并夹持一所述滚珠1282于其中,所述第四上轨道槽12323与所述第四下轨道槽121215相对应并夹持一所述滚珠1282于其中。
如图7所示,所述第一下轨道槽121212、所述第二下轨道槽121213、所述第三下轨道槽121214和所述第四下轨道槽121215为弧形轨道槽且分
布在一个圆轨迹上,所述第二轴123Y(Y轴)穿过该圆轨迹的圆心,与其相对应的,所述第一上轨道槽12312、所述第二上轨道槽12313、所述第三上轨道槽12322和所述第四上轨道槽12323也为弧形轨道槽并分布在同样大小的圆轨迹上。
为了限制所述反射驱动壳体121与所述支撑框架123之间的转动角度,在本申请一些实施例中,所述反射驱动机构12还包括设置于所述支撑框架123和所述基座1212之间的第二旋转限位部。具体地,参照图5A至图7,所述第一支撑部1231靠近所述基座1212一侧的外侧面的至少一部分内凹以形成第三限位凹槽12314,所述基座1212与所述第一支撑部1231相对的一侧的至少一部分凸起以形成第三限位凸起121221,所述第三限位凹槽12314和所述第三限位凸起121221配合限制所述支撑框架123绕第二轴123Y(Y轴)旋转的旋转角度。同时,所述第二支撑部1232靠近所述基座1212一侧的外侧面的至少一部分内凹以形成第四限位凹槽12324,所述基座1212与所述第二支撑部1232相对的一侧的至少一部分凸起以形成第四限位凸起121231,所述第四限位凹槽12324和所述第四限位凸起121231配合限制所述支撑框架123绕第二轴123Y(Y轴)旋转的旋转角度。换言之,所述第三限位凹槽12314形成于所述第一支撑部1231的外侧面,所述第四限位凹槽12324形成于所述第二支撑部1232的外侧面,所述第三限位凸起121221形成于所述第一基座侧壁12122的内侧,所述第四限位凸起121231形成于所述第二基座侧壁12123的内侧,从而所述第二旋转限位部离所述第二轴123Y的距离相对较远,以使所述支撑框架123相对于所述基座1212绕第二轴123Y(Y轴)旋转的旋转角度更大。在本申请的一个实施例中,所述支撑框架123相对于所述基座1212绕第二轴123Y(Y轴)的最大旋转角度为4°。
在本申请中,所述驱动单元125被设置于所述承载座122和所述基座1212之间,从而驱动所述承载座122运动,并通过所述第一旋转轴1222、所述第二旋转轴1223、所述第一支撑槽12311和所述第二支撑槽12321实现所述承载座122相对所述支撑框架123绕第一轴122X(X轴)旋转;再利用所述承载座122与所述支撑框架123之间的接触驱动所述支撑框架123运动,并通过所述旋转支撑组件128实现所述支撑框架123相对所述基座1212绕第二轴123Y(Y轴)旋转。
应注意到,在本申请实施例中,所述承载座122和所述支撑框架123之间通过枢轴连接结构使得所述承载座122相对于所述支撑框架123可发生转动,所述支撑框架123和所述反射驱动壳体121之间通过旋转支撑组件128使得所述支撑框架123相对于所述反射驱动壳体121可发生转动。这里,需要特别强调的是通过两种不同的旋转支撑机构来实现可转动地连接是本申请的优选,虽然所述承载座122和所述支撑框架123之间也可以通过旋转支撑组件128来实现可转动的安装,或者说,所述支撑框架123和所述反射驱动壳体121之间也可以通过枢轴连接结构来实现可转动的安装,但是以枢轴连接结构来实现所述承载座122和所述支撑框架123之间的可转动的安装且通过旋转支撑组件128来实现所述支撑框架123和所述反射驱动壳体121之间的可转动的安装是优选,其原因为:一方面当所述承载座122和所述支撑框架123作为整体绕所述第二轴123Y进行枢转时,所述承载座122和所述支撑框架123之间的枢轴连接关系可确保两者之间不会轻易发生相对移动,即,使得所述摄像模组1的绕所述第二轴123Y方向上的防抖控制更为精准;另一方面,所述驱动单元125被设置于所述承载座122和所述基座1212之间,即,所述驱动单元125远离所述枢轴连接结构,这样仅需要相对更小的力便能够驱动所述承载座122相对于所述支撑框架123进行转动,即,所述摄像模组1在绕所述第一轴122X方向上的防抖更易驱动和控制。
在本申请的一个实施例中,所述驱动单元125被实施为至少两个线圈-磁石对,至少两个所述线圈-磁石对包括设置于所述承载座122和所述基座1212两者中的一个的至少两个线圈和设置于所述承载座122和所述基座1212两者中的另一个的至少两个磁石,至少两个所述线圈与至少两个所述磁石相对应。在本申请的一个具体实施例中,参照图3A、图3B及图6B,所述驱动单元125包括两个线圈-磁石对,所述驱动单元125包括固定于所述承载座122的承载座底面122B的第一驱动磁石1252、第二驱动磁石1254和分别与所述第一驱动磁石1252、所述第二驱动磁石1254相对应并直接或者间接地固定于所述基座1212的基底12121上的第一驱动线圈1251和第二驱动线圈1253。在本申请一些实施例中,所述第一驱动磁石1252与所述第二驱动磁石1254对称地设置于所述承载座底面122B。
具体地,所述反射驱动机构12包括用于提供所述驱动单元125电流的
反射部线路板126,所述反射部线路板126固定于所述基座1212,所述第一驱动线圈1251和所述第二驱动线圈1253固定并电连接于所述反射部线路板126,从而所述反射部线路板126提供所述第一驱动线圈1251和所述第二驱动线圈1253电流。所述基座1212的基底12121具有一基底通孔121211,所述反射部线路板126固定于所述基底12121的底面,进而所述反射部线路板126与所述基底通孔121211形成线圈容纳腔,所述第一驱动线圈1251和所述第二驱动线圈1253容纳于所述线圈容纳腔中。所述承载座122的承载座底面122B向内凹陷地形成第一承载座磁石槽1226和第二承载座磁石槽1227,所述第一驱动磁石1252固定于所述第一承载座磁石槽1226中,所述第二驱动磁石1254固定于所述第二承载座磁石槽1227中,从而减小因磁石的体积造成所述反射驱动机构12的尺寸增加。
所述第一驱动线圈1251与所述第一驱动磁石1252相对设置形成第一线圈-磁石对,所述第二驱动线圈1253与所述第二驱动磁石1254相对设置形成第二线圈-磁石对,通过改变所述第一驱动线圈1251和所述第二驱动线圈1253中的电流大小和电流方向,改变所述第一驱动线圈1251与所述第一驱动磁石1252之间的电磁力的大小和方向,改变所述第二驱动线圈1253与所述第二驱动磁石1254之间的电磁力的大小和方向,从而改变所述第一线圈-磁石对和所述第二线圈-磁石对的合力方向,进而调整所述承载座122的旋转方向。
具体地,如图8所示,所述第一线圈-磁石对提供所述承载座122一第一驱动力F1,以所述第二线圈-磁石对提供所述承载座122一第二驱动力F2,以F1、F2表示第一驱动力、第二驱动力的大小和方向,例如,当第一驱动力与第二驱动力方向相反时,F1与F2中的一个为正值,另一个为负值;所述第一驱动力F1至所述支撑框架123的旋转轴的垂直距离为第一力臂,所述第一力臂为L1,所述第二驱动力F2至所述支撑框架123的旋转轴的垂直距离为第二力臂,所述第二力臂为L2。在本申请的一个实施例中,所述第一驱动力F1的方向和所述第二驱动力F2的方向垂直于所述第一轴122X(X轴)和所述第二轴123Y(Y轴)所在平面,所述支撑框架123的旋转轴即是第二轴123Y(Y轴)。
所述承载座122相对所述支撑框架123的旋转由所述第一驱动力F1和所述第二驱动力F2的合力Fo决定,Fo=F1+F2,当Fo等于0时,所述承载
座122相对所述支撑框架123静止;当Fo不等于0时,所述承载座122相对所述支撑框架123绕所述第一轴122X(X轴)旋转,Fo值的正负表示了所述承载座122旋转的方向。
所述支撑框架123相对所述基座1212的旋转由所述第一驱动力F1的力矩M1和所述第二驱动力F2的力矩M2之差Mo决定,Mo=M1-M2=F1*L1-F2*L2,当Mo等于0时,所述支撑框架123相对所述基座1212静止;当Mo不等于0时,所述支撑框架123相对于所述基座1212绕所述第二轴123Y(Y轴)旋转,Mo值的正负表示了所述支撑框架123旋转的方向。
由前述可知,当Fo和Mo均不为0时,所述承载座122相对所述支撑框架123旋转,所述支撑框架123相对所述基座1212旋转,从而所述承载座122相对所述基座1212在两个方向上旋转,即,所述承载座122相对所述基座1212绕第一轴122X(X轴)和第二轴123Y(Y轴)旋转。
在本申请的一个具体实施例中,第一力臂L1和第二力臂L2的距离相等,当所述第一驱动力F1与所述第二驱动力F2方向相同、大小相等时,所述承载座122相对所述支撑框架123绕所述第一轴122X(X轴)旋转,所述支撑框架123相对所述基座1212静止,从而所述承载座122相对所述基座1212绕所述第一轴122X(X轴)旋转;当所述第一驱动力F1与所述第二驱动力F2方向相反、大小相等时,所述承载座122相对所述支撑框架123静止,所述支撑框架123相对所述基座1212绕所述第二轴123Y(Y轴)旋转,从而所述承载座122相对所述基座1212绕所述第二轴123Y(Y轴)旋转;当所述第一驱动力F1与所述第二驱动力F2大小不相等时,所述承载座122相对所述支撑框架123绕所述第一轴122X(X轴)旋转,所述支撑框架123相对所述基座1212绕所述第二轴123Y(Y轴)旋转,从而所述承载座122相对所述基座1212绕所述第一轴122X(X轴)和所述第二轴123Y(Y轴)旋转。
在本申请的一个实施例中,所述第一驱动磁石1252和所述第二驱动磁石1254适于形成在同一块磁石上,也就是说,在本申请一些实施例中,所述第一驱动磁石1252和所述第二驱动磁石1254具有一体式结构,本质上为一块磁石,相应地,在该实施例中,所述第一承载座磁石槽1226和所述第二承载座磁石槽1227相连通以容置相连的所述第一驱动磁石1252和所
述第二驱动磁石1254。
在本申请的一个实施例中,所述反射驱动机构12还包括位置感测单元129。参照图3A和图6B所示,所述位置感测单元129包括固定并电连接于所述反射部线路板126的第一位置感测元件1291和第二位置感测元件1292,所述第一位置感测元件1291和所述第二位置感测元件1292获取所述承载座122上的磁石的位置信息而确定所述承载座122的位置信息,具体地,所述第一位置感测元件1291与所述第一驱动磁石1252相对设置,所述第二位置感测元件1292与所述第二驱动磁石1254相对设置。所述第一位置感测元件1291偏心的设置于所述第一驱动线圈1251中,所述第二位置感测元件1292偏心的设置于所述第二驱动线圈1253中。
为了所述支撑框架123和所述承载座122相对于所述反射驱动壳体121具有稳定的相对位置关系,即,为了使得所述支撑框架123和所述承载座122相对于所述基座1212具有稳定的相对位置关系,在本申请实施例中,所述反射驱动机构12还包括反射部磁吸构件127。相应地,所述反射部磁吸构件127设置于所述承载座122的底面和所述基座1212的基底12121之间以及所述支撑框架123的底面与所述基座1212的基底12121之间,从而使所述承载座122和所述支撑框架123被磁吸力吸附向所述基底12121,防止所述承载座122和所述支撑框架123因所述反射驱动机构12的移动而掉落。所述反射部磁吸构件127包括反射部导磁片1271、框架磁吸磁石1273和承载磁吸磁石1272,所述框架磁吸磁石1273固定于所述支撑框架123的框架底面123B,所述反射部导磁片1271直接或者间接的固定于所述基底12121,通过所述框架磁吸磁石1273与所述反射部导磁片1271之间的磁吸力使至少三所述滚珠1282被保持于所述支撑框架123和所述基底12121之间,进而所述支撑框架123可以通过至少三所述滚珠1282被支撑于所述基底12121;所述承载磁吸磁石1272被固定于所述承载座122的承载座底面122B并与所述反射部导磁片1271相对,进而所述承载座122可以通过所述承载磁吸磁石1272和所述反射部导磁片1271之间的磁吸力被支撑于所述支撑框架123。
在本申请的一个实施例中,所述框架磁吸磁石1273包括第一框架磁吸磁石12731和第二框架磁吸磁石12732,所述第一支撑部1231的底面向内凹陷地形成第一支撑框架磁吸槽12316,所述第二支撑部1232的底面向内
凹陷地形成第二支撑框架磁吸槽12326,所述第一框架磁吸磁石12731被设置于所述第一支撑框架磁吸槽12316中,所述第二框架磁吸磁石12732被设置于所述第二支撑框架磁吸槽12326中,从而降低所述反射驱动机构12的尺寸。
在本申请的一个实施例中,所述承载磁吸磁石1272可以是第一驱动磁石1252和第二驱动磁石1254。在本申请的一个实施例中,所述反射部导磁片1271被贴附于所述反射部线路板126远离所述框架磁吸磁石1273的一面,从而所述反射部导磁片1271在与磁石相吸引的同时,所述反射部导磁片1271还能提供所述反射部线路板126结构补强的作用。在本申请的一个实施例中,所述反射部导磁片1271为能够与磁石相互吸引的材质,如铁片等。
为了进一步使得所述承载座122与所述支撑框架123之间具有稳定的相对位置关系,在本申请实施例中,所述反射驱动机构12还包括簧片124,即,具有弹性的片状结构的元件。如图3A、图3B以及图6A所示,所述簧片124包括外固定部1241、内固定部1243以及连接所述外固定部1241和所述内固定部1243的簧丝部1242,所述外固定部1241固定于所述支撑框架123的框架顶面123A,所述内固定部1243固定于所述承载座122的承载座顶面122A,使得所述承载座122被保持在所述支撑框架123内,在本申请的一个实施例中,通过所述簧片124,所述承载座122被置中的设置在所述支撑框架123内。
具体地,所述外固定部1241包括第一外固定部12411、第二外固定部12412、第三外固定部12413和第四外固定部12414,所述内固定部1243包括第一内固定部12431、第二内固定部12432、第三内固定部12433和第四内固定部12434,所述簧丝部1242包括第一簧丝12421和第二簧丝12422。所述第一外固定部12411、所述第二外固定部12412固定于所述第一支撑部1231的顶面,所述第一内固定部12431、所述第二内固定部12432固定于所述承载座122的承载座顶面122A靠近所述第一支撑部1231的一边,所述第一簧丝12421连接所述第一外固定部12411、所述第二外固定部12412、所述第一内固定部12431、所述第二内固定部12432形成第一簧片部分;所述第三外固定部12413、所述第四外固定部12414固定于所述第二支撑部1232的顶面,所述第三内固定部12433、所述第四内固定部12434
固定于所述承载座122的承载座顶面122A靠近所述第二支撑部1232的一边,所述第二簧丝12422连接所述第三外固定部12413、所述第四外固定部12414、所述第三内固定部12433、所述第四内固定部12434形成第二簧片部分。所述第一簧片部分与所述第二簧片部分关于第二轴123Y(Y轴)轴对称,从而所述承载座122被置中的设置于所述支撑框架123内。
在本申请的一个实施例中,所述承载座122还包括形成于所述承载座顶面122A的四个第一固定凸起122A1,所述第一内固定部12431、所述第二内固定部12432、所述第三内固定部12433和所述第四内固定部12434分别通过固定于所述第一固定凸起122A1固定于所述承载座顶面122A;所述支撑框架123还包括形成于所述框架顶面123A的四个第二固定凸起123A1,所述第一外固定部12411、所述第二外固定部12412、所述第三外固定部12413和所述第四外固定部12414分别通过固定于所述第二固定凸起123A1固定于所述框架顶面123A。
在本申请的一个实施例中,所述第一簧丝12421具有一第一簧丝旋转轴124211,所述第一簧丝12421关于所述第一簧丝旋转轴124211对称,所述第二簧丝12422具有一第二簧丝旋转轴124221,所述第二簧丝12422关于所述第二簧丝旋转轴124221对称,所述第一簧丝旋转轴124211和所述第二簧丝旋转轴124221与所述第一轴122X(X轴)同向,如此,当所述承载座122相对所述支撑框架123绕第一轴122X(X轴)旋转时,所述簧片124对转动的阻力较小。
在本申请的一个实施例中,靠近于所述框架连接部1233的所述第一外固定部12411和所述第三外固定部12413之间一体延伸一外连接部12415,靠近于所述框架连接部1233的所述第一内固定部12431和所述第三内固定部12433之间一体延伸一内连接部12435,这样,所述第一簧片部分和所述第二簧片部分相连接,进而为所述簧片124的安装提供便利。
在本申请的另一个具体实施例中,参照图9至图11B所示,所述驱动单元125包括三个线圈-磁石对,所述驱动单元125包括固定于所述承载座122的承载座底面122B的第一驱动磁石1252、第二驱动磁石1254、第三驱动磁石1256和分别与所述第一驱动磁石1252、所述第二驱动磁石1254、第三驱动磁石1256相对应并直接或者间接地固定于所述基座1212的基底
12121上的第一驱动线圈1251、第二驱动线圈1253和第三驱动线圈1255,所述第一驱动磁石1252和所述第二驱动磁石1254对称的设置于所述承载座底面122B,所述第三驱动磁石1256设置于所述第一驱动磁石1252和所述第二驱动磁石1254的中间。
具体地,所述反射部线路板126固定于所述基底12121的底面,所述反射部线路板126与所述基底通孔121211形成线圈容纳腔,所述第一驱动线圈1251、所述第二驱动线圈1253和所述第三驱动线圈1255容纳于所述线圈容纳腔中。所述承载座122的承载座底面122B向内凹陷地形成第一承载座磁石槽1226和第二承载座磁石槽1227和第三承载座磁石槽1228,所述第一驱动磁石1252固定于所述第一承载座磁石槽1226中,所述第二驱动磁石1254固定于所述第二承载座磁石槽1227中,所述第三驱动磁石1256固定于所述第三承载座磁石槽1228中,从而减小因磁石的体积造成所述反射驱动机构12的尺寸增加。
所述第一驱动线圈1251与所述第一驱动磁石1252相对设置形成第一线圈-磁石对,所述第二驱动线圈1253与所述第二驱动磁石1254相对设置形成第二线圈-磁石对,所述第三驱动线圈1255与所述第三驱动磁石1256相对设置形成第三线圈-磁石对。通过改变所述第一驱动线圈1251、所述第二驱动线圈1253和所述第三驱动线圈1255中的电流大小和电流方向,改变所述第一驱动线圈1251和所述第一驱动磁石1252之间的电磁力的大小和方向,改变所述第二驱动线圈1253和所述第二驱动磁石1254之间的电磁力的大小和方向,改变所述第三驱动线圈1255和所述第三驱动磁石1256之间的电磁力的大小和方向,进而调整所述承载座122的旋转方向。
具体地,如图10所示,所述第一线圈-磁石对提供所述承载座122一第一驱动力F1,所述第二线圈-磁石对提供所述承载座122一第二驱动力F2,所述第三线圈-磁石对提供所述承载座122一第三驱动力F3,以F1、F2、F3表示第一驱动力、第二驱动力、第三驱动力的大小和方向,例如,当第一驱动力与第二驱动力方向相反时,F1与F2中的一个为正值,另一个为负值;所述第一驱动力F1至所述支撑框架123的旋转轴的垂直距离为第一力臂,所述第一力臂为L1,所述第二驱动力F2至所述支撑框架123的旋转轴的垂直距离为第二力臂,所述第二力臂为L2,所述第三线圈-磁石对位于中间,所述第三驱动力F3至所述支撑框架123的旋转轴的距离L3为0。在本
申请的一个实施例中,所述第一驱动力F1的方向、所述第二驱动力F2的方向和所述第三驱动力F3的方向垂直于所述第一轴122X(X轴)和所述第二轴123Y(Y轴)所在平面,所述支撑框架123的旋转轴即是第二轴123Y(Y轴)。
所述承载座122相对所述支撑框架123的旋转由所述第一驱动力F1、所述第二驱动力F2和所述第三驱动力F3的合力Fz决定,Fz=F1+F2+F3,当Fz等于0时,所述承载座122相对所述支撑框架123静止;当Fz不等于0时,所述承载座122相对所述支撑框架123绕所述第一轴122X(X轴)旋转,Fz值的正负表示了所述承载座122旋转的方向。
所述支撑框架123相对所述基座1212的旋转由所述第一驱动力F1的力矩M1和所述第二驱动力F2的力矩M2之差Mo决定,Mo=M1-M2=F1*L1-F2*L2,当Mo等于0时,所述支撑框架123相对所述基座1212静止;当Mo不等于0时,所述支撑框架123相对于所述基座1212绕所述第二轴123Y(Y轴)旋转,Mo值的正负表示了所述支撑框架123旋转的方向。
由前述可知,当Fz和Mo均不为0时,所述承载座122相对所述支撑框架123旋转,所述支撑框架123相对所述基座1212旋转,从而所述承载座122相对所述基座1212在两个方向上旋转,即,所述承载座122相对所述基座1212绕第一轴122X(X轴)和第二轴123Y(Y轴)旋转。
在本申请一个特殊的实施例中,第一力臂L1和第二力臂L2的距离相等,所述第三驱动力F3至所述支撑框架123的旋转轴的距离L3为0。位于中间的所述第三线圈-磁石对提供的第三驱动力F3用于驱动所述承载座122相对所述基座1212绕所述第一轴122X(X轴)旋转,对称地设置于两侧的第一线圈-磁石对和第二线圈-磁石对适于驱动承载基座1212绕所述第一轴122X(X轴)、所述第二轴123Y(Y轴)旋转。也就是说,在本申请一个特殊的实施例中,所述第三线圈-磁石对适于驱动所述承载座122相对于所述支撑框架123绕第一轴122X进行转动,所述第一线圈-磁石对和所述第二线圈-磁石对适于相配合以驱动所述承载座122相对于所述反射驱动壳体121绕垂直于所述第一轴122X的第二轴123Y进行转动以通过所述承载座122和所述支撑框架123之间的枢轴连接带动所述支撑框架123相对于所述反射驱动壳体121绕所述所述第二轴123Y进行转动。
更具体地,在该特殊的实施例中,所述第一线圈-磁石对产生的作用于所述承载座122的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座122的第二力矩的力矩之差决定所述承载座122和所述支撑框架123作为整体相对于所述反射驱动壳体121的运动情况。当所述第一驱动力F1和所述第二驱动力F2方向相反、大小相等时,所述支撑框架123相对所述基座1212绕所述第二轴123Y(Y轴)旋转,从而所述承载座122相对所述基座1212绕所述第二轴123Y(Y轴)旋转;当所述第一驱动力F1与所述第二驱动力F2大小不相等时,所述第一驱动力F1、所述第二驱动力F2与所述第三驱动力F3一同驱动所述承载座122相对所述基座1212绕所述第一轴122X(X轴)和所述第二轴123Y(Y轴)旋转。
在本申请的一个实施方式中,所述第一线圈-磁石对提供的驱动力的方向与所述第二线圈-磁石对提供的驱动力的方向始终相反,从而减少驱动力的损耗。例如,当所述第一驱动磁石1252与所述第二驱动磁石1254的磁极方向相同时,使所述第一驱动线圈1251与所述第二驱动线圈1253中的电流方向相反(设定所述第一驱动线圈1251和所述第二驱动线圈1253的绕线方式相一致),从而提供方向相反的驱动力,为始终维持电流方向相反,如图11B所示。当然,在本申请其他实施方式中,当所述第一驱动磁石1252和所述第二驱动磁石1254的磁极方向相同时,控制所述第一驱动线圈1251与所述第二驱动线圈1253中的电流方向相同(设定所述第一驱动线圈1251和所述第二驱动线圈1253的绕线方式相一致),从而提供方向相反的驱动力,为始终维持电流方向相反。应可以理解,还可以调整所述第一驱动线圈1251和所述第二驱动线圈1253的绕线方式使得所述第一线圈-磁石对和所述第二线圈-磁石对产生的作用于所述承载座122的作用力的方向相反。
在本申请实施例中,所述反射驱动机构12还具有一防呆机制。具体地,使所述第一驱动线圈1251和所述第二驱动线圈1253串联并使所述第一驱动线圈1251与所述第二驱动线圈1253的线圈绕制方向相反,这样当所述第一驱动磁石1252与所述第二驱动磁石1254的磁极方向相反时,使所述第一驱动线圈1251与所述第二驱动线圈1253中的电流方向相同,从而提供方向相反的驱动力。也就是,该实施例中,所述第一驱动线圈1251和所述第二驱动线圈1253相互串联,所述第一驱动线圈1251的绕线方向与所述第二驱动线圈1253的绕线方向相反,且所述第一驱动磁石1252和所述
第二驱动磁石1254的磁极朝向相同。应可以理解,在本申请其他实施例中,也可以是所述第一驱动线圈1251和所述第二驱动线圈1253相互串联,所述第一驱动线圈1251的绕线方向与所述第二驱动线圈1253的绕线方向相同,且所述第一驱动磁石1252和所述第二驱动磁石1254的磁极朝向相反。
在本申请的一个实施方式中,所述三线圈-磁石对与所述第一线圈-磁石对和所述第二线圈磁石对分别驱动所述承载座122相对所述支撑框架123绕第一轴122X(X轴)旋转、驱动所述支撑框架123相对所述基座1212绕第二轴123Y(Y轴)旋转。具体地,所述第一驱动力F1和所述第二驱动力F2的驱动力方向相反、大小相等,从而所述第一驱动力F1和所述第二驱动力F2的合力为0,进而仅能驱动所述支撑框架123相对所述基座1212绕所述第二轴123Y(Y轴)旋转,而后,通过所述第三驱动力F3的大小控制所述承载座122相对所述支撑框架123绕所述第一轴122X(X轴)旋转,并通过所述第三驱动力F3的方向控制所述承载座122相对所述支撑框架123绕所述第一轴122X(X轴)旋转的旋转方向。
在本申请的一个实施例中,所述第一驱动磁石1252、所述第二驱动磁石1254和所述第三驱动磁石1256适于形成在同一块磁石上,此时,所述第一承载座磁石槽1226、所述第二承载座磁石槽1227和所述第三承载座磁石槽1228相连通以容置相连的所述第一驱动磁石1252、所述第二驱动磁石1254和所述第三驱动磁石1256。
在本申请的一个实施例中,所述反射驱动机构12还包括位置感测单元129。参照图9所示,所述位置感测单元129包括固定并电连接于所述反射部线路板126的第一位置感测元件1291和第二位置感测元件1292,所述第一位置感测元件1291和所述第二位置感测元件1292获取所述承载座122上的磁石的位置信息而确定所述承载座122的位置信息,具体地,所述第一位置感测元件1291与所述第一驱动磁石1252相对设置,所述第二位置感测元件1292与所述第二驱动磁石1254相对设置。所述第一位置感测元件1291偏心的设置于所述第一驱动线圈1251中,所述第二位置感测元件1292偏心的设置于所述第二驱动线圈1253中。
在本申请的一个实施例中,所述反射部磁吸构件127设置于所述承载座122的底面、所述支撑框架123的底面与所述基座1212的基底12121之间,从而使所述承载座122和所述支撑框架123被磁吸力吸附向所述基底
12121,防止所述承载座122和所述支撑框架123因所述反射驱动机构12的移动而掉落。所述反射部磁吸构件127包括反射部导磁片1271、框架磁吸磁石1273和承载磁吸磁石1272,所述框架磁吸磁石1273固定于所述支撑框架123的框架底面123B,所述反射部导磁片1271直接或者间接的固定于所述基底12121,通过所述框架磁吸磁石1273与所述反射部导磁片1271之间的磁吸力使至少三所述滚珠1282被保持于所述支撑框架123和所述基底12121之间,进而所述支撑框架123可以通过至少三所述滚珠1282被支撑于所述基底12121;所述承载磁吸磁石1272被固定于所述承载座122的承载座底面122B并与所述反射部导磁片1271相对,进而所述承载座122可以通过所述承载磁吸磁石1272和所述反射部导磁片1271之间的磁吸力被支撑于所述支撑框架123。
在本申请的一个实施例中,所述框架磁吸磁石1273包括第一框架磁吸磁石12731和第二框架磁吸磁石12732,所述第一支撑部1231的底面向内凹陷地形成第一支撑框架磁吸槽12316,所述第二支撑部1232的底面向内凹陷地形成第二支撑框架磁吸槽12326,所述第一框架磁吸磁石12731被设置于所述第一支撑框架磁吸槽12316中,所述第二框架磁吸磁石12732被设置于所述第二支撑框架磁吸槽12326中,从而降低所述反射驱动机构12的尺寸。
在本申请的一个实施例中,所述承载磁吸磁石1272可以是第一驱动磁石1252、第二驱动磁石1254和第三驱动磁石1256。在本申请的一个实施例中,所述反射部导磁片1271被贴附于所述反射部线路板126远离所述框架磁吸磁石1273的一面,从而所述反射部导磁片1271在与磁石相吸引的同时,所述反射部导磁片1271还能提供所述反射部线路板126结构补强的作用。在本申请的一个实施例中,所述反射部导磁片1271为能够与磁石相互吸引的材质,如铁片等。
综上,基于本申请实施例的所述摄像模组1及其反射驱动机构12被阐明,其中,所述反射驱动机构12通过紧凑的结构布置来驱动摄像模组1的反射元件11进行旋转以实现摄像模组1的光学防抖。并且,所述反射防抖机构具有相对较小的尺寸,有利于所述摄像模组1的小型化。
本领域的技术人员应理解,上述描述及附图中所示的本发明的实施例只
作为举例而并不限制本发明。本发明的目的已经完整并有效地实现。本发明的功能及结构原理已在实施例中展示和说明,在没有背离所述原理下,本发明的实施方式可以有任何变形或修改。
Claims (37)
- 一种反射驱动机构,其特征在于,包括:反射驱动壳体,具有形成于其内的收容腔以及连通于所述收容腔的入光口和出光口;旋转支撑组件;通过所述旋转支撑组件被可转动地安装于所述收容腔内的支撑框架,其中,所述支撑框架具有凹陷地形成于其顶表面的至少一支撑槽;可转动地安装于所述支撑框架的承载座,其中,所述承载座包括承载主体和自所述承载主体突出地且侧向地延伸的至少一旋转轴,所述承载主体具有适于安装反射元件于其上的安装部,所述至少一旋转轴契合地安装于所述至少一支撑槽内,以通过所述至少一旋转轴和所述至少一支撑槽的枢轴连接使得所述承载座相对所述支撑框架可转动;以及驱动单元,其中,所述驱动单元适于驱动所述承载座相对于所述支撑框架绕所述至少一旋转轴所设定的第一轴进行转动,且所述驱动单元适于驱动所述承载座相对于所述反射驱动壳体绕垂直于所述第一轴的第二轴进行转动以通过所述承载座和所述支撑框架之间的枢轴连接带动所述支撑框架相对于所述反射驱动壳体绕所述第二轴进行转动。
- 根据权利要求1所述的反射驱动机构,其中,所述至少一旋转轴包括分别自所述承载主体的相对的两侧往外延伸的第一旋转轴和第二旋转轴,所述第一旋转轴和所述第二旋转轴同轴设置,所述至少一支撑槽包括凹陷地形成于所述支撑框架的顶表面的第一支撑槽和第二支撑槽,所述第一支撑槽和所述第二支撑槽同轴地设置,其中,所述第一旋转轴被契合地安装于所述第一支撑槽内,所述第二旋转轴被契合地安装于所述第二支撑槽内。
- 根据权利要求2所述的反射驱动机构,其中,所述第一旋转轴和所述第二旋转轴位于所述承载主体的顶部。
- 根据权利要求2所述的反射驱动机构,其中,所述支撑框架包括第一支撑部、第二支撑部和延伸于所述第一支撑部和所述第二支撑部之间的框 架连接部,其中,所述第一支撑槽凹陷地形成于所述第一支撑部的顶表面,所述第二支撑槽凹陷地形成于所述第二支撑部的顶表面。
- 根据权利要求4所述的反射驱动机构,其中,所述第一旋转轴的外表面与所述第一支撑槽的至少两个面相接触,所述第二旋转轴的外表面与所述第二支撑槽的至少两个面相接触。
- 根据权利要求2所述的反射驱动机构,其中,所述反射驱动机构进一步包括用于限制所述承载座相对于所述支撑框架的转动角度的第一旋转限位部。
- 根据权利要求1所述的反射驱动机构,其中,所述旋转支撑组件包括形成于所述支撑框架和所述反射驱动壳体之间的旋转轨道和被设置于所述旋转轨道内的至少三滚珠。
- 根据权利要求7所述的反射驱动机构,其中,所述反射驱动机构进一步包括用于限制所述支撑框架相对于所述反射驱动壳体的转动角度的第二旋转限位部。
- 根据权利要求1所述的反射驱动机构,其中,所述驱动单元包括被设置于所述承载主体的底表面的第一驱动磁石和第二驱动磁石,以及,被设置于所述反射驱动壳体且分别对应于所述第一驱动磁石和所述第二驱动磁石的第一驱动线圈和第二驱动线圈,其中,所述第一驱动磁石和所述第一驱动线圈构成第一线圈-磁石对,所述第二驱动磁石和所述第二驱动线圈构成第二线圈-磁石对。
- 根据权利要求9所述的反射驱动机构,其中,所述反射驱动壳体包括相互扣合的上盖和基座,所述基座具有贯穿地形成于其底部的基底通孔,所述驱动单元还包括被固定于所述基底通孔内的反射部线路板,所述第一驱动线圈和所述第二驱动线圈电连接于所述反射部线路板。
- 根据权利要求9所述的反射驱动机构,其中,所述第一线圈-磁石对和所述第二线圈-磁石对相对于所述承载主体所设定的中轴线对称地布设。
- 根据权利要求11所述的反射驱动机构,其中,所述第一线圈-磁石对产生的作用于所述承载座的第一作用力与所述第二线圈-磁石对产生的作用于所述承载座的第二作用力的合力决定所述承载座相对于所述支撑框架的运动情况,所述第一线圈-磁石对产生的作用于所述承载座的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座的第二力矩的力矩之差决定所述承载座和所述支撑框架作为整体相对于所述反射驱动壳体的运动情况。
- 根据权利要求9所述的反射驱动机构,其中,所述反射驱动机构还包括用于将所述承载座和所述支撑框架吸附向所述反射驱动壳体的反射部磁吸构件,其中,所述反射部磁吸构件包括被固定于所述支撑框架的框架磁吸磁石以及被设置于所述反射驱动壳体的反射部导磁片,以通过所述框架磁吸磁石和所述反射部导磁片之间的磁吸作用力以及所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述支撑框架吸附向所述反射驱动壳体,以及,通过所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述承载座吸附向所述反射驱动壳体。
- 根据权利要求1所述的反射驱动机构,其中,所述反射驱动机构还包括簧片,所述簧片包括被固定于所述支撑框架的顶表面的外固定部、被固定于所述承载座的顶表面的内固定部,以及,延伸于所述内固定部和所述外固定部之间的簧丝部。
- 根据权利要求14所述的反射驱动机构,其中,所述承载座通过所述簧片被置中地保持于所述支撑框架内。
- 根据权利要求15所述的反射驱动机构,其中,所述外固定部包括第一外固定部、第二外固定部、第三外固定部和第四外固定部,所述内固定部包括第一内固定部、第二内固定部、第三内固定部和第四内固定部,所述簧丝部包括第一簧丝和第二簧丝,其中,所述第一外固定部、所述第二外固 定部固定于所述第一支撑部的顶表面的一侧,所述第一内固定部、所述第二内固定部固定于所述承载座的顶表面的一侧,所述第一簧丝连接所述第一外固定部、所述第二外固定部、所述第一内固定部、所述第二内固定部以形成第一簧片部分;所述第三外固定部、所述第四外固定部固定于所述第二支撑部的顶表面的相对的另一侧,所述第三内固定部、所述第四内固定部固定于所述承载座的顶表面的相对的另一侧,所述第二簧丝连接所述第三外固定部、所述第四外固定部、所述第三内固定部、所述第四内固定部以形成第二簧片部分,其中,所述第一簧片部分与所述第二簧片部分相对于所述第二轴对称地布设。
- 根据权利要求16所述的反射驱动机构,其中,所述第一簧丝设有第一簧丝旋转轴,所述第一簧丝关于所述第一簧丝旋转轴对称,所述第二簧丝设有第二簧丝旋转轴,所述第二簧丝关于所述第二簧丝旋转轴对称,其中,所述第一簧丝旋转轴和所述第二簧丝旋转轴与所述第一轴同向。
- 一种摄像模组,其特征在于,包括:如权利要求1至17任一所述的反射驱动机构;安装于所述反射驱动机构的反射元件;被保持于所述反射元件的光反射路径上的镜头模块;以及被设置于所述镜头模块的光传播路径上的感光组件。
- 一种反射驱动机构,其特征在于,包括:反射驱动壳体,具有形成于其内的收容腔以及连通于所述收容腔的入光口和出光口;可转动地安装于所述收容腔内的支撑框架;可转动地安装于所述支撑框架的承载座;以及驱动单元,包括被设置于所述承载座的第一驱动磁石和第二驱动磁石,以及,被设置于所述反射驱动壳体且分别对应于所述第一驱动磁石和所述第二驱动磁石的第一驱动线圈和第二驱动线圈,其中,所述第一驱动磁石和所述第一驱动线圈构成第一线圈-磁石对,所述第二驱动磁石和所述第二驱动线圈构成第二线圈-磁石对。
- 根据权利要求19所述的反射驱动机构,其中,所述第一线圈-磁石对和所述第二线圈-磁石对相对于所述承载座所设定的中轴线对称地布设。
- 根据权利要求19所述的反射驱动机构,其中,所述第一线圈-磁石对和所述第二线圈-磁石对适于相配合以驱动所述承载座相对于所述支撑框架绕第一轴进行转动,且所述第一线圈-磁石对和所述第二线圈-磁石对适于相配合以驱动所述承载座相对于所述反射驱动壳体绕垂直于所述第一轴的第二轴进行转动以通过所述承载座和所述支撑框架之间的枢轴连接带动所述支撑框架相对于所述反射驱动壳体绕所述第二轴进行转动。
- 根据权利要求21所述的反射驱动机构,其中,所述第一线圈-磁石对产生的作用于所述承载座的第一作用力与所述第二线圈-磁石对产生的作用于所述承载座的第二作用力的合力决定所述承载座相对于所述支撑框架的运动情况,所述第一线圈-磁石对产生的作用于所述承载座的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座的第二力矩的力矩之差决定所述承载座和所述支撑框架作为整体相对于所述反射驱动壳体的运动情况。
- 根据权利要求19所述的反射驱动机构,其中,所述反射驱动壳体包括相互扣合的上盖和基座,所述基座具有贯穿地形成于其底部的基底通孔,所述驱动单元还包括被固定于所述基底通孔内的反射部线路板,所述第一驱动线圈和所述第二驱动线圈电连接于所述反射部线路板。
- 根据权利要求23所述的反射驱动机构,其中,所述驱动单元包括被设置于所述承载座且位于所述第一驱动磁石和所述第二驱动磁石之间的第三驱动磁石,以及,被设置于所述反射驱动壳体且对应于所述第三驱动磁石的第三驱动线圈,所述第三驱动线圈位于所述第一驱动线圈和所述第二驱动线圈之间,其中,所述第三驱动线圈和所述第三驱动磁石构成所述第三线圈-磁石对。
- 根据权利要求24所述的反射驱动机构,其中,所述第一线圈磁石对和所述第二线圈磁石对相对于所述第三线圈-磁石对对称地分布。
- 根据权利要求24所述的反射驱动机构,其中,所述第三线圈-磁石对适于驱动所述承载座相对于所述支撑框架绕第一轴进行转动,所述第一线圈-磁石对和所述第二线圈-磁石对适于相配合以驱动所述承载座相对于所述反射驱动壳体绕垂直于所述第一轴的第二轴进行转动以通过所述承载座和所述支撑框架之间的枢轴连接带动所述支撑框架相对于所述反射驱动壳体绕所述所述第二轴进行转动。
- 根据权利要求26所述的反射驱动机构,其中,所述第一线圈-磁石对产生的作用于所述承载座的第一力矩与所述第二线圈-磁石对产生的作用于所述承载座的第二力矩的力矩之差决定所述承载座和所述支撑框架作为整体相对于所述反射驱动壳体的运动情况,其中,所述第一线圈-磁石对产生的作用于所述承载座的第一作用力的方向与所述第二线圈-磁石对产生的作用于所述承载座的第二作用力的方向相反。
- 根据权利要求27所述的反射驱动机构,其中,所述第一作用力的大小等于所述第二作用力的大小。
- 根据权利要求27所述的反射驱动机构,其中,所述第一驱动线圈和所述第二驱动线圈相互串联,所述第一驱动线圈的绕线方向与所述第二驱动线圈的绕线方向相反,且所述第一驱动磁石和所述第二驱动磁石的磁极朝向相同。
- 根据权利要求27所述的反射驱动机构,其中,所述第一驱动线圈和所述第二驱动线圈相互串联,所述第一驱动线圈的绕线方向与所述第二驱动线圈的绕线方向相同,且所述第一驱动磁石和所述第二驱动磁石的磁极朝向相反。
- 根据权利要求19所述的反射驱动机构,其中,所述反射驱动机构还包括旋转支撑组件,所述支撑框架通过所述旋转支撑组件被可转动地安装于所述收容腔内,所述支撑框架具有凹陷地形成于其顶表面的至少一支撑 槽,所述承载座包括承载主体和自所述承载主体的突出地且侧向地延伸的至少一旋转轴,所述承载主体具有适于安装反射元件于其上的安装部,所述至少一旋转轴契合地安装于所述至少一支撑槽内,以通过所述至少一旋转轴和所述至少一支撑槽的枢轴连接使得所述承载座相对所述支撑框架可转动。
- 根据权利要求31所述的反射驱动机构,其中,所述至少一旋转轴包括分别自所述承载主体的相对的两侧往外地延伸的第一旋转轴和第二旋转轴,所述第一旋转轴和所述第二旋转轴同轴设置,所述至少一支撑槽包括凹陷地形成于所述支撑框架的顶表面的第一支撑槽和第二支撑槽,所述第一支撑槽和所述第二支撑槽同轴地设置,其中,所述第一旋转轴被契合地安装于所述第一支撑槽内,所述第二旋转轴被契合地安装于所述第二支撑槽内,其中,所述第一旋转轴和所述第二旋转轴位于所述承载主体的顶部。
- 根据权利要求32所述的反射驱动机构,其中,所述支撑框架包括第一支撑部、第二支撑部和延伸于所述第一支撑部和所述第二支撑部之间的框架连接部,其中,所述第一支撑槽凹陷地形成于所述第一支撑部的顶表面,所述第二支撑槽凹陷地形成于所述第二支撑部的顶表面。
- 根据权利要求19所述的反射驱动机构,其中,所述反射驱动机构进一步包括用于限制所述承载座相对于所述支撑框架的转动角度的第一旋转限位部,以及,用于限制所述支撑框架相对于所述反射驱动壳体的转动角度的第二旋转限位部。
- 根据权利要求19所述的反射驱动机构,其中,所述反射驱动机构还包括用于将所述承载座和所述支撑框架吸附向所述反射驱动壳体的反射部磁吸构件,其中,所述反射部磁吸构件包括被固定于所述支撑框架的框架磁吸磁石以及被设置于所述反射驱动壳体的反射部导磁片,以通过所述框架磁吸磁石和所述反射部导磁片之间的磁吸作用力以及所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述支撑框架吸附向所述反射驱动壳体,以及,通过所述第一和第二驱动磁石与所述反射部导磁片之间的磁吸作用力使得所述承载座吸附向所述反射驱动壳体。
- 根据权利要求19所述的反射驱动机构,其中,所述反射驱动机构还包括簧片,所述簧片包括被固定于所述支撑框架的顶表面的外固定部、被固定于所述承载座的顶表面的内固定部,以及,延伸于所述内固定部和所述外固定部之间的簧丝部,其中,所述承载座通过所述簧片被置中地保持于所述支撑框架内。
- 一种摄像模组,其特征在于,包括:如权利要求19-36任一所述的反射驱动机构;安装于所述反射驱动机构的反射元件;被保持于所述反射元件的光反射路径上的镜头模块;以及被设置于所述镜头模块的光传播路径上的感光组件。
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