WO2024104119A1 - 镜头马达、摄像模组以及电子设备 - Google Patents
镜头马达、摄像模组以及电子设备 Download PDFInfo
- Publication number
- WO2024104119A1 WO2024104119A1 PCT/CN2023/127926 CN2023127926W WO2024104119A1 WO 2024104119 A1 WO2024104119 A1 WO 2024104119A1 CN 2023127926 W CN2023127926 W CN 2023127926W WO 2024104119 A1 WO2024104119 A1 WO 2024104119A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bracket
- shake
- focus
- coil
- lens motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Definitions
- the present application relates to the field of camera technology, and in particular to a lens motor, a camera module and an electronic device.
- the embodiments of the present application provide a lens motor, a camera module including the lens motor, and an electronic device including the camera module, aiming to obtain a lens motor and a camera module with a simpler process flow and higher production efficiency.
- a lens motor in a first aspect, includes a stator, a focus bracket, an anti-shake bracket, a focus drive mechanism, an anti-shake drive mechanism, and a drive chip.
- the focus bracket is movably connected to the stator
- the anti-shake bracket is movably connected to the focus bracket and is located on the inner side of the focus bracket
- the anti-shake bracket is used to install the lens.
- the drive chip is used to control the focus drive mechanism so that the focus drive mechanism drives the focus bracket to drive the anti-shake bracket to move relative to the stator in a first direction.
- the drive chip is also used to control the anti-shake drive mechanism so that the anti-shake drive mechanism drives the anti-shake bracket to move relative to the focus bracket in a second direction and a third direction.
- the first direction is the optical axis direction of the lens
- the second direction and the third direction are different from the first direction.
- the driver chip of a traditional lens motor is usually arranged on a module circuit board outside the lens motor. This makes it impossible to burn relevant calibration data to the driver chip at the motor factory during the production of the camera module, and the driver chip needs to be calibrated at the module factory.
- the driver chip in the present application is built into the lens motor, so that during the production of the camera module, the relevant calibration data can be directly burned into the driver chip in the lens motor at the motor factory, saving the subsequent calibration process at the module factory and improving production efficiency.
- the characteristics of the lens motor vary due to factors such as reliability or module process, it is beneficial to compare the data of the lens motor after the characteristic variation.
- the lens motor in this application controls the anti-shake drive mechanism and the focus drive mechanism at the same time through a driver chip.
- the driver chip can obtain the corresponding position information by performing corresponding algorithm compensation. In this way, the information exchange between the anti-shake drive mechanism and the focus drive mechanism is faster, and the driver chip does not need to perform additional data burning, which is conducive to improving the efficiency of the driver chip in obtaining position information and improving the response speed of the lens motor.
- the lens motor of the present application is an integrated motor with both anti-shake and focus functions, and the driver chip is built into the lens motor.
- the driver chip inside the lens motor can simultaneously control the focus bracket to drive the anti-shake bracket to move relative to the stator along the first direction to achieve the focus function, and control the anti-shake bracket to move relative to the focus bracket along the second direction and the third direction to achieve the anti-shake function.
- the lens motor of the present application is smaller in size, which is conducive to the miniaturization of the lens motor and is conducive to saving the internal space of the electronic equipment.
- the stator includes a base, the focus bracket is movably connected to the base, the base is provided with a first avoidance hole, and the first avoidance hole connects the outer peripheral side and the inner peripheral side of the base.
- the lens motor also includes a circuit board, the circuit board is fixed to the outer peripheral side of the base, the driver chip is fixed on the circuit board and electrically connected to the circuit board, and at least part of the driver chip is located in the first avoidance hole.
- the anti-shake drive mechanism includes an anti-shake coil and an anti-shake magnetic component.
- the anti-shake coil is fixed on a circuit board and electrically connected to the circuit board.
- the anti-shake magnetic component is fixed on an anti-shake bracket, and the anti-shake coil and the anti-shake magnetic component are arranged opposite to each other.
- the anti-shake coil is electrically connected to a drive chip, and the drive chip is also used to control the anti-shake coil, so as to drive the anti-shake bracket to move in a second direction relative to the focus bracket through the cooperation of the anti-shake coil and the anti-shake magnetic component, or to drive the anti-shake bracket to move in a third direction relative to the focus bracket.
- the drive chip can control the anti-shake coil, and drive the anti-shake bracket to move through the driving force generated by the cooperation between the anti-shake coil and the anti-shake magnetic component, so as to realize the anti-shake function of the lens motor.
- the anti-shake coil is directed toward the anti-shake magnetic component through the first avoidance hole.
- the anti-shake coil and the driving chip can At the same time, the anti-shake coil and the driver chip are both located in the first avoidance hole, which can effectively reduce the space occupied by the anti-shake coil and the driver chip inside the lens motor, which is conducive to improving the space utilization of the lens motor.
- the base is provided with a first avoidance groove, and the first avoidance groove runs through the bottom of the base.
- the focus bracket is provided with a second avoidance groove, and the second avoidance groove is connected to the bottom space of the anti-shake bracket and the first avoidance groove.
- the first avoidance groove, the second avoidance groove and the bottom space of the anti-shake bracket constitute an installation space, and the installation space is used to accommodate a part of the prism.
- the lens motor of the present application is provided with an installation space, and at least a part of the prism can be located in the installation space, so that the lens motor can be sunk relative to the prism to reduce the height of the lens motor, thereby achieving an overall reduction in the height of the camera module, which is conducive to realizing a thin setting of the camera module.
- the overall structure of the camera module is more compact, which is conducive to saving the internal space of the electronic device.
- the anti-shake bracket includes a first bracket and a second bracket, the first bracket is located between the focus bracket and the bottom of the second bracket, the first bracket is movably connected to the focus bracket, and the second bracket is movably connected to the first bracket.
- the driving chip is used to control the anti-shake driving mechanism so that the anti-shake driving mechanism drives the first bracket to drive the second bracket to move relative to the focus bracket along the second direction, and the driving chip is also used to control the anti-shake driving mechanism so that the anti-shake driving mechanism drives the second bracket to move relative to the first bracket along the third direction.
- the anti-shake bracket can drive the lens to move relative to the focus bracket along the second direction and along the third direction, thereby realizing the anti-shake function.
- the anti-shake coil includes a first coil and a second coil
- the anti-shake magnetic part includes a first magnetic part and a second magnetic part
- the first coil is arranged opposite to the first magnetic part
- the second coil is arranged opposite to the second magnetic part.
- the driving chip is used to control the first coil to drive the first bracket to move in the second direction relative to the focus bracket through the cooperation between the first coil and the first magnetic part
- the driving chip is also used to control the second coil to drive the second bracket to move in the third direction relative to the first bracket through the cooperation between the second coil and the second magnetic part.
- the driving chip can control the first coil and the second coil respectively, drive the first bracket to move through the driving force generated by the cooperation between the first coil and the first magnetic part, and drive the second bracket to move through the driving force generated by the cooperation between the second coil and the second magnetic part, thereby realizing the anti-shake function of the lens motor.
- the first coil includes a first sub-coil and a second sub-coil
- the first magnetic member includes a first sub-magnetic member and a second sub-magnetic member
- the first sub-magnetic member and the second sub-magnetic member are located between the first sub-coil and the second sub-coil
- the first sub-coil and the first sub-magnetic member are arranged opposite to each other
- the second sub-coil and the second sub-magnetic member are arranged opposite to each other.
- the driving force of the anti-shake driving mechanism on the first bracket can be increased, which is beneficial to increasing the moving speed of the first bracket and increasing the anti-shake response speed of the lens motor in the second direction.
- the first bracket is movably connected to the focus bracket via a ball bearing
- the second bracket is movably connected to the first bracket via a ball bearing. It is understandable that, since the friction coefficient of the ball bearing is small, the friction between the first bracket and the focus bracket is small, and the friction between the second bracket and the first bracket is small, thereby reducing the driving force required by the anti-shake driving mechanism, which is beneficial to reducing the energy loss of the lens motor and improving the battery life of the electronic device.
- the first bracket includes a first branch and a second branch, the second branch is connected to the first branch, and the angle between the second branch and the first branch is less than 180°.
- the bottom of the focusing bracket includes a first part and a second part, the second part is stacked on the first part, a part of the second part is arranged opposite to the first branch, and another part of the second part is arranged opposite to the second branch.
- the second part can be raised relative to the first part, and the first bracket can be sunk relative to the second part, thereby reducing the overall thickness of the lens motor, which is conducive to realizing a thin setting of the lens motor.
- the second part is raised relative to the first part, so that the bottom space of the second part can be released, which is conducive to increasing the available space inside the lens motor.
- the base space is located at the bottom of the second part.
- the inner side of the first part faces the bottom space.
- the bottom space of the second part can also be used to accommodate at least part of the prism, thereby achieving an overall reduction in the height of the camera module, which is conducive to achieving a thinner setting of the camera module.
- the overall structure of the camera module is more compact, which is conducive to saving the internal space of the electronic device.
- the focus bracket is movably connected to the stator via a sliding shaft.
- the focus bracket can still achieve self-locking through the friction between itself and the sliding shaft after the lens motor is powered off, and no external power supply is required to continuously power the lens motor, which is beneficial to saving power and improving the battery life of electronic equipment.
- the focus bracket moves, it is less likely to deflect, which is beneficial to ensure the focusing effect of the lens motor and improve the imaging quality of the camera module.
- the focus drive mechanism includes a focus coil and a focus magnetic part.
- the focus coil is fixed on a circuit board and electrically connected to the circuit board.
- the focus magnetic part is fixed on a focus bracket, and the focus coil and the focus magnetic part are arranged opposite to each other.
- the focus coil is electrically connected to a drive chip, and the drive chip is also used to control the focus coil, so as to drive the focus bracket to drive the anti-shake bracket to move relative to the stator in a first direction through the cooperation between the focus coil and the focus magnetic part.
- the drive chip can control the focus coil, and drive the focus bracket to move through the driving force generated by the cooperation between the focus coil and the focus magnetic part, so as to realize the focus function of the lens motor.
- the lens motor further includes a first magnetic sheet, the first magnetic sheet is fixed to the circuit board, and the focus coil is located at the first magnetic sheet.
- the focusing bracket squeezes the sliding shaft under the action of the first magnetic sheet and the focusing magnetic part.
- the first magnetic sheet can absorb the focusing magnetic part, so that the focusing bracket can squeeze the sliding shaft, so that the focusing bracket and the sliding shaft can be in close contact, thereby effectively preventing the focusing bracket from tipping over when moving relative to the stator.
- the lens motor further includes a first sensor, the first sensor is fixed to the circuit board and electrically connected to the circuit board, the driver chip is electrically connected to the first sensor, the first sensor is used to detect the position of the focus bracket, and the driver chip is also used to obtain information from the first sensor.
- the driver chip can obtain the position information of the focus bracket in a timely manner, which is conducive to improving the efficiency of the driver chip in obtaining position information and improving the response speed of the lens motor.
- the lens motor further includes a cover plate, the cover plate is connected to the focus bracket, and the cover plate is located on a side of the anti-shake bracket away from the focus bracket. In this way, it can effectively prevent the anti-shake bracket from falling out of the focus bracket when the electronic device is flipped or tilted, which is conducive to improving the structural reliability of the lens motor.
- a camera module which includes a lens, a prism, a photosensitive chip, and the above-mentioned lens motor, wherein the lens is mounted on an anti-shake bracket, the prism is located on the light-emitting side of the lens, and the photosensitive chip is located on the light-emitting side of the prism.
- the driver chip of a traditional lens motor is usually arranged on a module circuit board outside the lens motor. This makes it impossible to burn relevant calibration data to the driver chip at the motor factory during the production of the camera module, and the driver chip needs to be calibrated at the module factory.
- the driver chip in the present application is built into the lens motor, so that during the production of the camera module, the relevant calibration data can be directly burned into the driver chip in the lens motor at the motor factory, saving the subsequent calibration process at the module factory and improving production efficiency.
- the characteristics of the lens motor vary due to factors such as reliability or module process, it is beneficial to compare the data of the lens motor after the characteristic variation.
- the lens motor in this application controls the anti-shake drive mechanism and the focus drive mechanism at the same time through a driver chip.
- the driver chip can obtain the corresponding position information by performing corresponding algorithm compensation. In this way, the information exchange between the anti-shake drive mechanism and the focus drive mechanism is faster, and the driver chip does not need to perform additional data burning, which is conducive to improving the efficiency of the driver chip in obtaining position information and improving the response speed of the lens motor.
- the lens motor of the present application is an integrated motor with both anti-shake and focus functions, and the driver chip is built into the lens motor.
- the driver chip inside the lens motor can simultaneously control the focus bracket to drive the anti-shake bracket to move relative to the stator along the first direction to achieve the focus function, and control the anti-shake bracket to move relative to the focus bracket along the second direction and the third direction to achieve the anti-shake function.
- the lens motor of the present application is smaller in size, which is conducive to the miniaturization of the lens motor and is conducive to saving the internal space of the electronic equipment.
- the prism includes a first surface, a first inclined surface, a second surface, and a second inclined surface connected in sequence, the lens and the photosensitive chip are both located on the side of the first surface facing away from the second surface, the first surface includes a first area and a second area, the lens and the first area are arranged opposite to each other, and the photosensitive chip and the second area are arranged opposite to each other.
- the ambient light passes through the lens, it enters the prism from the first area of the first surface, and after multiple reflections inside the prism, it is emitted from the second area of the first surface, and the photosensitive chip collects the ambient light passing through the prism.
- the camera module of the present application in which the lens and the photosensitive chip are located on the same side of the prism is conducive to reducing the overall height of the camera module and realizing a thin setting of the camera module.
- an electronic device in a third aspect, includes a device housing and the above-mentioned camera module, and the camera module is arranged in the device housing.
- the lens motor in the electronic device of the present application is an integrated motor with both anti-shake function and focus function, and the driving chip is built into the lens motor.
- the driving chip inside the lens motor can simultaneously control the focus bracket to drive the anti-shake bracket to move relative to the stator along the first direction to realize the focus function, and control the anti-shake bracket to move relative to the focus bracket along the second direction and the third direction to realize the anti-shake function.
- the lens motor of the present application is smaller in size, which is conducive to realizing the miniaturization of the lens motor and saving the internal space of the electronic device.
- FIG1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.
- FIG2a is a partial cross-sectional view of the electronic device shown in FIG1 taken along line A-A in one embodiment
- FIG2b is a schematic structural diagram of an implementation of the camera module shown in FIG1 ;
- FIG3 is an exploded schematic diagram of the camera module shown in FIG2a;
- FIG4 is a schematic structural diagram of the lens motor shown in FIG3 in one embodiment
- FIG5 is an exploded schematic diagram of the lens motor shown in FIG4 ;
- FIG6 is a schematic structural diagram of the base and the sliding shaft shown in FIG5 ;
- FIG7 is a schematic diagram of a portion of the structure of the lens motor shown in FIG5 ;
- FIG8 is a schematic structural diagram of the structure shown in FIG7 at another angle
- FIG9 is a partial structural schematic diagram of the lens motor shown in FIG5 ;
- FIG10 is a schematic structural diagram of the structure shown in FIG9 at another angle
- FIG11 is a partial structural schematic diagram of the lens motor shown in FIG5 ;
- FIG12 is a partial cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line B-B;
- FIG13 is an exploded schematic diagram of the mover shown in FIG5 ;
- FIG14 is a schematic structural diagram of a base of the mover shown in FIG13;
- FIG15 is a schematic structural diagram of the structure shown in FIG14 at another angle
- FIG16 is a partial cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line C-C;
- FIG17 is a partial cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line D-D;
- FIG18 is a schematic structural diagram of the first bracket shown in FIG13 at another angle
- FIG19 is a schematic diagram of a partial structure of the mover shown in FIG13;
- FIG20 is a schematic structural diagram of the structure shown in FIG19 at another angle
- FIG21 is a schematic diagram of a partial structure of the mover shown in FIG13;
- FIG22 is a partial cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line E-E;
- FIG23 is a partial cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line C-C;
- FIG24 is a schematic structural diagram of the second bracket of the mover shown in FIG13 from another viewing angle
- FIG25 is a schematic diagram of a partial structure of the mover shown in FIG13;
- FIG26 is a schematic diagram of a partial structure of the mover shown in FIG13;
- Fig. 28 is a partial cross-sectional view of an embodiment of the structure shown in Fig. 4 on line D-D;
- FIG29 is a schematic diagram of the structure of the mover shown in FIG13;
- FIG30 is a schematic diagram of a portion of the structure of the lens motor shown in FIG5 ;
- FIG31 is a cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line E-E;
- FIG32 is a cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line F-F;
- FIG33 is a cross-sectional view of an embodiment of the lens motor shown in FIG4 taken along line D-D;
- FIG34 is a schematic diagram of the structure of the lens motor and the lens shown in FIG3 ;
- FIG35 is a partial cross-sectional view of the camera module shown in FIG2b on line G-G in one embodiment
- FIG36 is a cross-sectional view of the camera module shown in FIG2b along line G-G in one embodiment
- FIG37 is a partial cross-sectional schematic diagram of another embodiment of the camera module shown in FIG36 ;
- FIG38 is a partial cross-sectional schematic diagram of another embodiment of the camera module shown in FIG36 .
- connection can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.
- fixed connection means that the relative position relationship after connection remains unchanged.
- Rotational connection means that the two are connected to each other and can rotate relative to each other after connection.
- Slide relative connection means that the two are connected to each other and can slide relative to each other after connection.
- first”, “second”, “third”, and “fourth” are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first”, “second”, “third”, and “fourth” may explicitly or implicitly include one or more of the features.
- the embodiment of the present application provides a terminal, which includes but is not limited to electronic devices with display functions such as mobile phones, tablet computers, multimedia players, e-book readers, laptop computers, vehicle-mounted devices or wearable devices.
- a terminal which includes but is not limited to electronic devices with display functions such as mobile phones, tablet computers, multimedia players, e-book readers, laptop computers, vehicle-mounted devices or wearable devices.
- the present application takes the mobile phone as an example for specific description.
- Fig. 1 is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of the present application.
- Fig. 2a is a partial cross-sectional view of the electronic device 1000 shown in Fig. 1 on line A-A in an implementation manner.
- the electronic device 1000 may be a device with a camera module such as a mobile phone, a tablet computer (tablet personal computer), a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, an augmented reality (AR) glasses, an AR helmet, a virtual reality (VR) glasses or a VR helmet.
- a camera module such as a mobile phone, a tablet computer (tablet personal computer), a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, an augmented reality (AR) glasses, an AR helmet, a virtual reality (VR) glasses or a VR helmet.
- AR augmented reality
- VR virtual reality
- the electronic device 1000 may include a camera module 100, a device housing 200, and a screen 300.
- the camera module 100 may be a rear camera module or a front camera module.
- FIG1 and the related drawings below only schematically illustrate some components included in the electronic device 1000, and the actual shape, actual size, actual position, and actual structure of these components are not limited by FIG1 and the drawings below.
- the electronic device 1000 when the electronic device 1000 is a device of some other form, the electronic device 1000 may also not include the screen 300.
- the width direction of the electronic device 1000 is defined as the X axis.
- the length direction of the electronic device 1000 is defined as the Y axis.
- the thickness direction of the electronic device 1000 is defined as the Z axis. It is understood that the coordinate system setting of the electronic device 1000 can be flexibly set according to specific actual needs.
- the device housing 200 may include a frame 201 and a back cover 202.
- the back cover 202 is fixed to the frame 201.
- the back cover 202 may be fixedly connected to the frame 201 by adhesive.
- the back cover 202 may also be an integrally formed structure with the frame 201, that is, the back cover 202 and the frame 201 are an integral structure.
- the screen 300 may be located on a side of the frame 201 away from the back cover 202. In this case, the screen and the back cover 202 are located on both sides of the frame 201.
- the screen 300, the frame 201 and the back cover 202 together enclose the interior of the electronic device 1000.
- the interior of the electronic device 1000 may be used to place components of the electronic device 1000, such as a battery, a receiver or a microphone.
- the screen 300 may be a flat screen or a curved screen.
- the camera module 100 may be located inside the electronic device 1000.
- the camera module 100 may be fixed to the side of the screen 300 facing the back cover 202.
- the back cover 202 may be provided with a light-transmitting hole 203.
- the shape of the light-transmitting hole 203 is not limited to the circular shape illustrated in FIG. 1 .
- the light-transmitting hole 203 connects the inside of the electronic device 1000 to the outside of the electronic device 1000. Light outside the electronic device 1000 may enter the inside of the electronic device 1000 through the light-transmitting hole 203.
- the camera module 100 may collect ambient light entering the inside of the electronic device 1000.
- the camera module 100 may be a common camera module (i.e., the optical axis direction of the camera module 100 is the thickness direction of the electronic device 1000).
- the camera module 100 may also be a periscope camera module (i.e., the optical axis direction of the camera module 100 is the width direction of the electronic device 1000).
- Fig. 2b is a schematic diagram of the structure of an embodiment of the camera module 100 shown in Fig. 1.
- Fig. 3 is a schematic diagram of the exploded view of the camera module 100 shown in Fig. 2a.
- the camera module 100 may include a lens motor 1, a lens 2, a prism 4, a module base 5, a circuit module 6, and a module housing 7.
- the lens motor 1 and the lens 2 may constitute a lens assembly 400.
- the lens motor 1 may surround a mounting hole 3.
- the lens 2 may be mounted in the mounting hole 3. In other embodiments, the mounting method of the lens 2 and the lens motor 1 is not specifically limited.
- the lens motor 1 can be used to achieve auto focus (AF) by controlling the movement of the lens 2 along the optical axis direction of the lens 2 (in this embodiment, the optical axis direction of the lens 2 is the Z-axis direction).
- the lens motor 1 can also control the movement of the lens 2 along a plane perpendicular to the optical axis (in this embodiment, the plane perpendicular to the optical axis is the X-Y plane).
- the lens motor 1 can control the movement of the lens 2 in the X-Y plane through the lens motor 1, thereby realizing the optical image stabilization (OIS) of the camera module 100 and improving the imaging quality of the camera module 100.
- OIS optical image stabilization
- Fig. 4 is a schematic diagram of the structure of the lens motor 1 shown in Fig. 3 in one embodiment.
- Fig. 5 is an exploded schematic diagram of the lens motor 1 shown in Fig. 4 .
- the lens motor 1 may include a housing 10, a base 20, a circuit board 30, a first magnetic sheet 40, a mover 50, a driving chip 60, a coil 70, a position sensor 80, and a sliding shaft 90.
- the housing 10 and the base 20 may together constitute the fixed position of the lens motor 1.
- the number of the sliding shafts 90 may be two.
- the two sliding shafts 90 may be a first sliding shaft 91 and a second sliding shaft 92.
- the first sliding shaft 91 and the second sliding shaft 92 may have the same shape and size. In other embodiments, the number of the sliding shafts 90 is not specifically limited.
- the shape and size of each sliding shaft 90 may also be different.
- the width direction of the lens motor 1, that is, the width direction of the electronic device 1000 is the X-axis direction.
- the length direction of the lens motor 1, that is, the length direction of the electronic device 1000 is the Y-axis direction.
- the thickness direction of the lens motor 1, that is, the thickness direction of the electronic device 1000 is the Z-axis direction.
- the Z-axis direction is also the first direction.
- the X-axis direction is also the second direction.
- the Y-axis direction is also the third direction.
- the coordinate system setting of the lens motor 1 can be flexibly set according to specific actual needs.
- FIG. 6 is a schematic structural diagram of the base 20 and the sliding shaft 90 shown in FIG. 5 .
- the base 20 may be substantially in the shape of a cube.
- the base 20 may include a bottom 21 and a frame 22.
- the frame 22 may be fixed to the bottom 21 and enclose a receiving space 23.
- the receiving space 23 may be used to accommodate the mover 50, the sliding shaft 90, at least a portion of the lens 2, and at least a portion of the coil 70.
- the bottom 21 may be provided with a communication hole 212.
- the communication hole 212 may connect the outside of the lens motor 1 with the accommodating space 23.
- the shape and size of the communication hole 212 are not specifically limited.
- the frame portion 22 may include a first side portion 222, a second side portion 223, a third side portion 224, and a fourth side portion 221 connected in sequence.
- the first side portion 222 may be provided with a first avoidance hole 222a.
- the second side portion 223 may be provided with a second avoidance hole 223a.
- the third side portion 224 may be provided with a third avoidance hole 224a.
- the fourth side portion 221 may be provided with a fourth avoidance hole 221a.
- the first avoidance hole 222a, the second avoidance hole 223a, the third avoidance hole 224a, and the fourth avoidance hole 221a may all penetrate the inner circumference and the outer circumference of the frame portion 22, and communicate with the accommodating space 23.
- the base 20 may be provided with a first avoidance groove 211.
- the first avoidance groove 211 may penetrate the bottom 21 and the frame 22, and communicate with the communication hole 212 of the bottom 21. At this time, the inner side surface of the bottom 21 may face the first avoidance groove 211.
- the fourth side portion 221 may be provided with a first fixing groove 2211 and a second fixing groove 2212.
- the openings of the first fixing groove 2211 and the second fixing groove 2212 may be formed on the surface of the fourth side portion 221 facing the accommodating space 23.
- the first fixing groove 2211 and the second fixing groove 2212 may be respectively located on both sides of the fourth avoidance hole 221a.
- the shapes of the first fixing groove 2211 and the second fixing groove 2212 may be adapted to the shape of the sliding shaft 90.
- the first sliding shaft 91 may be fixed to the first fixing groove 2211 and connected to the base 20.
- the second sliding shaft 92 may be fixed to the second fixing groove 2212 and connected to the base 20.
- Fig. 7 is a partial structural diagram of the lens motor 1 shown in Fig. 5.
- Fig. 8 is a structural diagram of the structure shown in Fig. 7 at another angle.
- the coil 70 and the position sensor 80 can be fixed to the circuit board 30 by welding or the like.
- the coil 70 and the position sensor 80 can be electrically connected to the circuit board 30.
- the circuit board 30 can be a flexible circuit board 30.
- the position sensor 80 can be a Hall sensor. In other embodiments, the circuit board 30 can also be a rigid circuit board 30 or a rigid-flexible circuit board 30.
- the position sensor 80 can also be other types of sensors.
- the circuit board 30 may include a first sub-board 31, a second sub-board 32, a third sub-board 33, and a fourth sub-board 34 connected in sequence.
- the first sub-board 31 is arranged opposite to the third sub-board 33.
- the second sub-board 32 is arranged opposite to the fourth sub-board 34.
- the first sub-board 31, the second sub-board 32, the third sub-board 33, and the fourth sub-board 34 may be roughly surrounded by a square. It should be understood that in order to facilitate the description of the specific structure and shape of the circuit board 30, the present embodiment divides the circuit board 30 into four parts for description, but does not affect the circuit board 30 as an integrated structure.
- the first sub-board 31, the second sub-board 32, the third sub-board 33, and the fourth sub-board 34 may also be connected in sequence by welding.
- the coil 70 may include a focus coil 71 and an anti-shake coil 72.
- the anti-shake coil 72 may include a first coil 721 and a second coil 722.
- the first coil 721 may include a first sub-coil 7211 and a second sub-coil 7212.
- the focus coil 71 may be fixed to the side of the first sub-board 31 facing the third sub-board 33.
- the first sub-coil 7211 may be fixed to the side of the second sub-board 32 facing the fourth sub-board 34.
- the second coil 722 may be fixed to the side of the third sub-board 33 facing the first sub-board 31.
- the second sub-coil 7212 may be fixed to the side of the fourth sub-board 34 facing the second sub-board 32.
- the position sensor 80 may include a first sensor 81, a second sensor 82, and a third sensor 83.
- the first sensor 81 may be fixed to the first sub-board 31.
- the second sensor 82 may be fixed to the second sub-board 32.
- the third sensor 83 may be fixed to the third sub-board 33.
- the first sensor 81 may be located in the coil hole of the focus coil 71.
- the second sensor 82 may be located in the coil hole of the first sub-coil 7211.
- the third sensor 83 may be located in the coil hole of the second coil 722.
- the first coil 721 may not include the second sub-coil 7212 .
- the driving chip 60 can be fixed to the second sub-board 32 by welding. At this time, the driving chip 60 is electrically connected to the second sub-board 32.
- the driving chip 60 can be electrically connected to the coil 70 (i.e., the focus coil 71, the first sub-coil 7211, the second coil 722, and the second sub-coil 7212) and the position sensor 80 (i.e., the first sensor 81, the second sensor 82, and the third sensor 83) at the same time.
- the driver chip 60 can be fixed on the side of the second sub-board 32 facing the fourth sub-board 34. At this time, the driver chip 60 and the coil 70 can be located in the area surrounded by the circuit board 30. The driver chip 60 and the coil 70 can be located on the same side of the circuit board 30. For example, the driver chip 60 and the coil 70 can be located on the same side of the circuit board 30.
- the driving chip 60 may be arranged side by side with the first sub-coil 7211. In other embodiments, the driving chip 60 may also be fixed at other positions of the circuit board 30.
- Fig. 9 is a partial structural diagram of the lens motor 1 shown in Fig. 5.
- Fig. 10 is a structural diagram of the structure shown in Fig. 9 at another angle.
- the circuit board 30 may be arranged around the frame 22 of the base 20.
- the circuit board 30 may be arranged around the outer side of the frame 22.
- the first sub-board 31, the second sub-board 32, the third sub-board 33 and the fourth sub-board 34 may be fixedly connected to the fourth side 221, the first side 222, the second side 223 and the third side 224 in sequence.
- at least a portion of the focus coil 71 may be located in the fourth avoidance hole 221a.
- At least a portion of the first sub-coil 7211 and at least a portion of the driving chip 60 may both be located in the first avoidance hole 222a.
- At least a portion of the second coil 722 may be located in the second avoidance hole 223a. At least a portion of the second sub-coil 7212 may be located in the third avoidance hole 224a.
- each coil 70 i.e., the focusing coil 71, the first sub-coil 7211, the second coil 722 and the second sub-coil 7212
- each avoidance hole i.e., the fourth avoidance hole 221a, the first avoidance hole 222a, the second avoidance hole 223a and the third avoidance hole 224a
- the thickness of the base 20 can be effectively utilized to place the coil 70, thereby improving the space utilization inside the lens motor 1, which is conducive to the miniaturization of the lens motor 1.
- the first magnetic sheet 40 may be fixed to the side of the first sub-plate 31 away from the accommodating space 23.
- the material of the first magnetic sheet 40 may be a magnetic material.
- the frame 22 may further be provided with a groove (not shown), and the circuit board 30 may be installed in the groove, thereby making the structure more compact.
- the lens motor 1 may further include a sub-magnetic sheet 41 .
- the sub-magnetic sheet 41 may be fixed to the first sub-plate 31 and located in the coil hole of the focus coil 71 .
- Fig. 11 is a partial structural schematic diagram of the lens motor 1 shown in Fig. 5.
- Fig. 12 is a partial cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 on line B-B.
- the housing 10 may be roughly cubic in shape.
- the housing 10 may be fixed on the bottom 21.
- the housing 10 is arranged around the frame 22 of the base 20.
- at least part of the circuit board 30 and the first magnetic sheet 40 may be located between the housing 10 and the frame 22.
- the housing 10 may be provided with a lens through hole 12.
- the lens through hole 12 may be connected to the accommodating space 23 and may be arranged opposite to the connecting hole 212 of the base 20.
- the shape of the lens through hole 12 may be adapted to that of the lens 2 (as shown in Figure 3).
- the lens 2 may at least partially pass through the lens through hole 12. It should be understood that Figure 12 illustrates the bottom 21 and the frame 22 of the base 20 by dotted lines.
- FIG. 13 is an exploded schematic diagram of the mover 50 shown in FIG. 5 .
- the mover 50 may include a focus mover 51 , an anti-shake mover 52 and a cover plate 53 .
- the focus mover 51 may include a focus bracket 511, a focus magnetic member 512, a focus magnetic conductive sheet 513, and a plurality of second magnetic suction sheets 514.
- the anti-shake mover 52 may include a first bracket 521, a second bracket 522, an anti-shake magnetic member 52c, a first magnetic conductive sheet 526, a second magnetic conductive sheet 527, a third magnetic conductive sheet 528, and a plurality of rolling balls 529.
- the first bracket 521 and the second bracket 522 may together constitute an anti-shake bracket 52a of the anti-shake mover 52.
- the anti-shake magnetic member 52c may include a first magnetic member 523 and a second magnetic member 524.
- the first magnetic member 523 may include a first sub-magnetic member 5231 and a second sub-magnetic member 5232.
- the focus mover 51 may be used to drive the lens 2 to move along the Z-axis direction to achieve optical focus.
- the anti-shake mover 52 may be used to drive the lens 2 to move in the X-Y plane to achieve optical image stabilization.
- each ball 529 has the same shape and size. Therefore, each ball 529 can be numbered the same. For the sake of simplicity, FIG13 only numbers one of the balls 529.
- Fig. 14 is a schematic structural diagram of the focus bracket 511 of the mover 50 shown in Fig. 13.
- Fig. 15 is a schematic structural diagram of the structure shown in Fig. 14 at another angle.
- the focus bracket 511 may be roughly in the shape of a cube.
- the focus bracket 511 may include a bottom 511b and a frame 511c.
- the frame 511c may connect the outer periphery of the bottom 511b.
- the frame 511c and the bottom 511b may enclose a receiving space 511a.
- the bottom 511b may be provided with a first through hole 511d.
- the first through hole 511d may communicate with the receiving space 511a.
- the bottom 511b may include a first portion 5111 and a second portion 5112.
- the second portion 5112 may be connected to the upper surface of the first portion 5111, and enclose a first through hole 511d with the first portion 5111.
- the second portion 5112 may be raised relative to the first portion 5111 along the positive direction of the Z axis, that is, the second portion 5112 may be stacked on the first portion 5111.
- the inner side surface of the first portion 5111 may face the bottom space 5112a of the second portion 5112.
- the focus bracket 511 may be provided with a second avoidance groove 50a.
- the second avoidance groove 50a may connect the bottom space 5112a of the second portion 5112 and the first through hole 511d.
- Fig. 16 is a partial cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 taken along line CC.
- Fig. 17 is a partial cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 taken along line DD.
- the frame portion 511c may include a first side portion 5113, a second side portion 5114, a third side portion 5115 and a fourth side portion 5116 connected in sequence.
- the second side portion 5114 may be provided with a first avoidance space 5117.
- the third side portion 5115 may be provided with a second avoidance space 5118.
- the fourth side portion 5116 may be provided with a third avoidance space 5119.
- the first avoidance space 5117, the second avoidance space 5118 and the third avoidance space 5119 may all be connected to the receiving space 511a.
- the second avoidance groove 50a may pass through the fourth side portion 5116 of the frame portion 511c, and the portion of the first portion 5111 located at the fourth side portion 5116.
- the first side portion 5113 may be provided with a first slide groove 5113a and a second slide groove 5113b.
- the openings of the first slide groove 5113a and the second slide groove 5113b may be formed on the surface of the first side portion 5113 facing away from the receiving space 511a.
- the first slide groove 5113a and the second slide groove 5113b may be arranged at intervals.
- the first side portion 5113 may also be provided with a base mounting groove 5113c.
- the base mounting groove 5113c may be located between the first slide groove 5113a and the second slide groove 5113b.
- the focusing magnetic conductive sheet 513 may be fixed to the base mounting groove 5113c.
- the focusing magnetic member 512 may be fixed to the side of the focusing magnetic conductive sheet 513 away from the receiving space 511a.
- the first part 5111 may also be provided with a plurality of base guide grooves 54.
- the openings of the plurality of base guide grooves 54 may be formed on the surface of the first part 5111 facing the receiving space 511a.
- the number of the base guide grooves 54 may be three.
- the plurality of base guide grooves 54 may be a first guide groove 541, a second guide groove 542, and a third guide groove 543, respectively.
- the first guide groove 541 may be located at the connection between the first side portion 5111 and the second side portion 5114.
- the second guide groove 542 may be located at the connection between the second side portion 5114 and the third side portion 5115.
- the third guide groove 543 may be located at the connection between the third side portion 5115 and the fourth side portion 5116. Among them, the guiding directions of the first guide groove 541, the second guide groove 542, and the third guide groove 543 may all be parallel to the X-axis direction. At this time, the first guide groove 541, the second guide groove 542, and the third guide groove 543 may be surrounded in an "L" shape.
- the focus bracket 511 may further include a stopper 5110.
- the stopper 5110 may be fixedly connected to the first portion 5111.
- the stopper 5110 may be located at the connection between the first portion 5111 and the first side portion 5113, and may be spaced apart from the first guide groove 541.
- the bottom 511b of the focus bracket 511 may also be provided with a first limiting groove 5112b and a second limiting groove 5112c.
- the opening of the first limiting groove 5112b and the opening of the second limiting groove 5112c may be formed on the surface of the second portion 5112 facing away from the first side portion 5113.
- the first limiting groove 5112b and the second limiting groove 5112c may be arranged at intervals.
- the first limiting groove 5112b may expose the second guide groove 542.
- the second limiting groove 5112c may expose the third guide groove 543.
- multiple second magnetic sheets 514 can be located inside the first part 5111, that is, multiple second magnetic sheets 514 can be built into the first part 5111.
- the material of the second magnetic sheet 514 can be a magnetic material.
- the number of second magnetic sheets 514 can be two.
- One of the second magnetic sheets 514 can be located between the first guide groove 541 and the second guide groove 542.
- Another second magnetic sheet 514 can be located between the second guide groove 542 and the third guide groove 543.
- Fig. 18 is a schematic diagram of the structure of the first bracket 521 shown in Fig. 13 at another angle.
- Fig. 19 is a schematic diagram of a part of the structure of the mover 50 shown in Fig. 13.
- Fig. 20 is a schematic diagram of the structure shown in Fig. 19 at another angle.
- the first bracket 521 may include a first branch 521a and a second branch 521b.
- the first branch 521a is connected to the second branch 521b.
- the first branch 521a and the second branch 521b may be arranged at an angle.
- the angle between the first branch 521a and the second branch 521b may be less than 180°.
- the angle between the first branch 521a and the second branch 521b may be 90°.
- the first bracket 521 may be roughly in an "L"-shaped structure.
- the first branch 521a may include a first support portion 5211, a first connection portion 5212, and a second support portion 5213 connected in sequence.
- the second branch 521b may include a second connection portion 5214 and a third support portion 5215 connected in sequence. One end of the second connection portion 5214 away from the third support portion 5215 may be connected to the second support portion 5213.
- the first connection portion 5212 is connected between the first support portion 5211 and the second support portion 5213.
- the second connection portion 5214 is connected between the second support portion 5213 and the third support portion 5215.
- first connection portion 5212 and the second connection portion 5214 may be arranged at an angle.
- first connection portion 5212 and the second connection portion 5214 may be perpendicular to each other.
- first support portion 5211, the first connection portion 5212, the second support portion 5213, the second connection portion 5214 and the third support portion 5215 may form an "L"-shaped structure.
- the first support portion 5211 may have a first end surface 5211a and a second end surface 5211b disposed in opposite directions.
- the first support portion 5211 may be provided with a first guide groove 5211c and a second guide groove 5211d.
- the opening of the first guide groove 5211c may be formed on the first end surface 5211a and the surface of the first support portion 5211 facing the second support portion 5213.
- the opening of the second guide groove 5211d may be formed on the second end surface 5211b and the surface of the first support portion 5211 facing away from the third support portion 5215.
- the guiding direction of the first guide groove 5211c may be parallel to the Y axis.
- the guiding direction of the second guide groove 5211d may be parallel to the X axis.
- the second support portion 5213 may be provided with a third guide groove 5213a and a fourth guide groove 5213b.
- the third support portion 5215 may be provided with a fifth guide groove 5215a and a sixth guide groove 5215b.
- the structures of the second support portion 5213 and the third support portion 5215 are substantially the same as those of the first support portion 5211, and the same parts are not repeated.
- the guiding directions of the third guide groove 5213a and the fifth guide groove 5215a may be parallel to the Y axis.
- the guiding directions of the fourth guide groove 5213b and the sixth guide groove 5215b may be parallel to the X axis.
- first guide groove 5211c, the third guide groove 5213a, and the fifth guide groove 5215a can all be located on the same side of the first connection portion 5212 and the second connection portion 5214.
- the second guide groove 5211d, the fourth guide groove 5213b, and the sixth guide groove 5215b can all be located on the other side of the first connection portion 5212 and the second connection portion 5214.
- the positions of the first guide groove 5211c and the second guide groove 5211d can also be swapped.
- the number of the balls 529 can be six.
- the balls 529 can be arranged in the first guide groove 5211c, the second guide groove 5211d, the third guide groove 5213a, the fourth guide groove 5213b, the fifth guide groove 5215a and the sixth guide groove 5215b in a one-to-one correspondence.
- the first guide groove 5211c, the third guide groove 5213a, the fourth guide groove 5213b and the sixth guide groove 5215b can be a "V"-shaped groove, that is, the cross-sectional shape of the first guide groove 5211c, the third guide groove 5213a, the fourth guide groove 5213b and the sixth guide groove 5215b is a "V"-shaped.
- a tight fit can be achieved between the ball 529 and the first guide groove 5211c, the third guide groove 5213a, the fourth guide groove 5213b and the sixth guide groove 5215b.
- the second guide groove 5211d and the fifth guide groove 5215a can be a "U"-shaped groove, that is, the cross-sectional shape of the second guide groove 5211d and the fifth guide groove 5215a is a "U"-shaped. At this time, a loose fit can be achieved between the ball 529 and the second guide groove 5211d and the fifth guide groove 5215a.
- Fig. 21 is a partial structural schematic diagram of the mover 50 shown in Fig. 13.
- Fig. 22 is a partial cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 on line E-E.
- Fig. 23 is a partial cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 on line C-C.
- the first bracket 521 may be slidably connected to the first portion 5111 of the focus bracket 511 via the ball bearing 529.
- a portion of the second portion 5112 of the focus bracket 511 may be disposed opposite to the first branch 521a of the first bracket 521.
- Another portion of the second portion 5112 may be disposed opposite to the second branch 521b.
- the opening of the second guide groove 5211d of the first bracket 521 and the opening of the first guide groove 541 of the focus bracket 511 can be arranged opposite to each other, and together form a second ball rolling groove 552.
- the opening of the fourth guide groove 5213b of the first bracket 521 and the opening of the second guide groove 542 of the focus bracket 511 can be arranged opposite to each other, and together form a fourth ball rolling groove 554.
- the opening of the sixth guide groove 5215b of the first bracket 521 and the opening of the third guide groove 543 of the focus bracket 511 can be arranged opposite to each other, and together form a sixth ball rolling groove 556.
- the guiding directions of the second ball groove 552, the fourth ball groove 554 and the sixth ball groove 556 can be parallel to the X-axis direction.
- the ball 529 between the first bracket 521 and the focusing bracket 511 can move along the X-axis direction.
- the first bracket 521 can move relative to the focusing bracket 511 along the X-axis direction.
- the bottom 511b may also not include the second portion 5112.
- the first bracket 521 may also include a third connecting portion (not shown) and a fourth supporting portion (not shown).
- the third connecting portion may be connected to the third supporting portion 5215 and parallel to the first connecting portion 5212.
- the fourth supporting portion may be connected to an end of the third connecting portion away from the third supporting portion 5215.
- the fourth supporting portion may also be provided with a seventh guide groove and an eighth guide groove.
- the guiding direction of the seventh guide groove may be parallel to the Y axis.
- the guiding direction of the eighth guide groove may be parallel to the X axis.
- FIG. 24 is a schematic structural diagram of the second bracket 522 of the mover 50 shown in FIG. 13 from another viewing angle.
- the second bracket 522 may be roughly in the shape of a cube.
- the second bracket 522 may include a first surface 5221 and a second surface 5222 disposed in back-to-back relation, and a peripheral side surface 5223 that simultaneously connects the outer periphery of the first surface 5221 and the second surface 5222.
- the second bracket 522 may be provided with a second through hole 5224.
- the second through hole 5224 may sequentially penetrate the first surface 5221 and the second surface 5222.
- the second through hole 5224 may constitute at least a portion of the mounting hole 3 of the lens motor 1.
- the lens 2 (see FIG. 3 ) may be mounted on the second bracket 522 through the second through hole 5224.
- the peripheral side surface 5223 of the second bracket 522 may include a first side surface 5223a, a second side surface 5223b, a third side surface 5223c, and a fourth side surface 5223d.
- the second bracket 522 may be provided with a plurality of receiving grooves 5225.
- the plurality of receiving grooves 5225 may all be connected to the second surface 5222 and the peripheral side surface 5223 of the second bracket 522.
- the number of the receiving grooves 5225 may be three.
- the plurality of receiving grooves 5225 may be a first receiving groove 5225a, a second receiving groove 5225b, and a third receiving groove 5225c, respectively.
- the first receiving groove 5225a can communicate with the first side surface 5223a, the second side surface 5223b and the second surface 5222 of the second bracket 522.
- the second receiving groove 5225b can communicate with the second side surface 5223b, the third side surface 5223c and the second surface 5222 of the second bracket 522.
- the third receiving groove 5225c can communicate with the third side surface 5223c, the fourth side surface 5223d and the second surface 5222 of the second bracket 522.
- the second bracket 522 may also be provided with a plurality of guide grooves 5226.
- the plurality of guide grooves 5226 may all be connected to the peripheral side surface 5223 of the second bracket 522 and the receiving groove 5225.
- the number of guide grooves 5226 of the second bracket 522 may be three.
- the plurality of guide grooves 5226 may be respectively a first guide groove 5226a, a second guide groove 5226b, and a third guide groove 5226c.
- the first guide groove 5226a may be connected to the first receiving groove 5225a and the first side surface 5223a.
- the second guide groove 5226b may be connected to the second receiving groove 5225b and the third side surface 5223c.
- the third guide groove 5226c may be connected to the third receiving groove 5225c and the third side surface 5223c.
- the guide direction of the plurality of guide grooves 5226 i.e., the first guide groove 5226a, the second guide groove 5226b, and the third guide groove 5226c
- the guide direction of the plurality of guide grooves 5226 i.e., the first guide groove 5226a, the second guide groove 5226b, and the third guide groove 5226c
- the second bracket 522 may be parallel to the Y-axis direction.
- the second bracket 522 may further be provided with a fourth receiving groove (not shown).
- the fourth receiving groove may connect the first side 5223a, the fourth side 5223d and the second side 5222 of the second bracket 522.
- the second bracket 522 may further be provided with a fourth guide groove (not shown).
- the fourth guide groove may connect the fourth receiving groove and the first side 5223a.
- the guide direction of the fourth guide groove may be parallel to the Y-axis direction.
- the second bracket 522 may not be provided with the receiving groove 5225 .
- the guide groove 5226 of the second bracket 522 may communicate with the peripheral side surface 5223 and the second surface 5222 of the second bracket 522 .
- FIG. 25 is a schematic diagram of a partial structure of the mover 50 shown in FIG. 13 .
- the second bracket 522 may be provided with a first mounting groove 5227, a second mounting groove 5228, and a third mounting groove 5229.
- the first mounting groove 5227 may be located between the first receiving groove 5225a and the second receiving groove 5225b.
- the second mounting groove 5228 may be located between the second receiving groove 5225b and the third receiving groove 5225c.
- the third mounting groove 5229 may be arranged side by side with the third receiving groove 5225c along the Y-axis direction.
- the opening of the first mounting groove 5227 can be formed at the second side surface 5223b and the second surface 5222.
- the opening of the second mounting groove 5228 can be formed at the third side surface 5223c and the second surface 5222.
- the opening of the third mounting groove 5229 can be formed at the fourth side surface 5223d and the second surface 5222.
- the first magnetic conductive sheet 526 can be fixed to the groove wall of the first mounting groove 5227 close to the second through hole 5224.
- the first sub-magnetic member 5231 can be fixed to the side of the first magnetic conductive sheet 526 away from the second through hole 5224.
- connection relationship between the second mounting groove 5228 and the second magnetic member 524 and the second magnetic conductive sheet 527, and the connection relationship between the third mounting groove 5229 and the second sub-magnetic member 5232 and the third magnetic conductive sheet 528 are all substantially the same as the connection relationship between the first mounting groove 5227 and the first sub-magnetic member 5231 and the first magnetic conductive sheet 526. The same parts are not repeated.
- Fig. 26 is a partial structural schematic diagram of the mover 50 shown in Fig. 13.
- Fig. 27 is a partial cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 on line E-E.
- Fig. 28 is a partial cross-sectional view of an embodiment of the structure shown in Fig. 4 on line D-D.
- a portion of the second bracket 522 may be movably connected to the first bracket 521 via a ball bearing 529. Another portion of the second bracket 522 may be disposed opposite to the second portion 5112 of the focus bracket 511. At this time, both the first bracket 521 and the second bracket 522 may be located in the receiving space 511a of the focus bracket 511. That is, the anti-shake bracket 52a may be located inside the focus bracket 511.
- the first through hole 511d and the second through hole 5224 can be arranged opposite to each other.
- the first avoidance space 5117, the second avoidance space 5118 and the third avoidance space 5119 of the focusing bracket 511 can respectively expose the first sub-magnetic component 5231, the second magnetic component 524 and the second sub-magnetic component 5232 fixed to the second bracket 522.
- the second magnetic attraction sheet 514 located between the first guide groove 541 and the second guide groove 542 of the focusing bracket 511 can absorb the first sub-magnetic component 5231.
- the second magnetic attraction sheet 514 located between the second guide groove 542 and the third guide groove 543 of the focusing bracket 511 can absorb the second magnetic component 524.
- At least a portion of the first support portion 5211 may be received in the first receiving groove 5225a.
- At least a portion of the second support portion 5213 may be received in the second receiving groove 5225b.
- At least a portion of the third support portion 5215 may be received in the third receiving groove 5225c.
- the opening of the first guide groove 5226a of the second bracket 522 and the opening of the first guide groove 5211c of the first bracket 521 may be arranged opposite to each other, and together constitute the first ball rolling groove 551.
- the opening of the second guide groove 5226b of the second bracket 522 and the opening of the third guide groove 5213a of the first bracket 521 may be arranged opposite to each other, and together constitute the third ball rolling groove 553.
- the opening of the third guide groove 5226c of the second bracket 522 may be arranged opposite to the opening of the fifth guide groove 5215a of the first bracket 521, and together constitute the fifth ball rolling groove 555.
- the first ball groove 551 , the second ball groove 552 , the third ball groove 553 , the fourth ball groove 554 , the fifth ball groove 555 and the sixth ball groove 556 may together constitute the ball grooves of the mover 50 .
- the guiding directions of the first ball groove 551, the third ball groove 553 and the fifth ball groove 555 can be parallel to the Y-axis direction.
- the ball 529 between the second bracket 522 and the first bracket 521 can move along the Y-axis direction.
- the second bracket 522 can move relative to the first bracket 521 along the Y-axis direction.
- the second bracket 522 can be movably connected to the first bracket 521 via the ball bearing 529.
- the second bracket 522 can move relative to the first bracket 521 along the Y-axis direction.
- the groove wall of the second receiving groove 5225b close to the first mounting groove 5227 can move in a direction close to the second support portion 5213 until the groove wall abuts against the second support portion 5213.
- the groove wall of the first receiving groove 5225a close to the first mounting groove 5227 can move in a direction close to the first support portion 5211 until the groove wall abuts against the first support portion 5211.
- the second bracket 522 can be prevented from being separated from the first bracket 521 during the movement, and the ball 529 between the second bracket 522 and the first bracket 521 can be prevented from falling out of the ball groove.
- only the first bracket 521 may be movably connected to the focus bracket 511 via the ball bearing 529 .
- only the second bracket 522 may be movably connected to the first bracket 521 via the ball bearing 529 .
- FIG. 29 is a schematic structural diagram of the mover 50 shown in FIG. 13 .
- the cover plate 53 can cover the focus bracket 511. At this time, the cover plate 53 can be located on the side of the anti-shake bracket 52a away from the focus bracket 511.
- the anti-shake actuator 52 can be located between the focus bracket 511 and the cover plate 53.
- the cover plate 53 can be provided with a plurality of buckling grooves 531.
- the focus bracket 511 can be provided with a plurality of buckling protrusions 5120.
- the plurality of buckling grooves 531 can be matched with the plurality of buckling protrusions 5120 in a one-to-one correspondence to fix the cover plate 53 to the focus bracket 511.
- the first bracket 521 can be movably connected to the focus bracket 511 through the ball 529, and drive the second bracket 522 to move relative to the focus bracket 511 along the X-axis direction, so that the anti-shake element 52 can move relative to the focus mover 51 along the X-axis direction.
- the first support portion 5211 can move in the direction toward the limit block 5110 until the first support portion 5211 abuts against the limit block 5110.
- the third support portion 5215 can move in the direction toward the first limit groove 5112b until the third support portion 5215 abuts against the groove wall of the second limit groove 5112c.
- the second support portion 5213 can move in the direction close to the second limit groove 5112c until the second support portion 5213 abuts against the groove wall of the first limit groove 5112b.
- the ball 529 between the first bracket 521 and the focusing bracket 511 can be prevented from falling out of the ball groove.
- the anti-shake sub 52 can squeeze the focus bracket 511 of the focus mover 51 along the Z-axis direction under the action of the adsorption force.
- the multiple balls 529 can be closely fitted to the groove walls of the multiple ball grooves in a one-to-one correspondence. In this way, the anti-shake sub 52 can be effectively prevented from tipping over when moving in the X-Y plane.
- the cover plate 53 is provided to cover the focus bracket 511, so that the focus actuator 51 can completely cover the anti-shake actuator 52. In this way, the anti-shake actuator 52 in the lens motor 1 can be effectively prevented from escaping from the focus actuator 51 when the electronic device 1000 is flipped or tilted.
- Fig. 30 is a schematic diagram of a partial structure of the lens motor 1 shown in Fig. 5.
- Fig. 31 is a cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 along line E-E.
- Fig. 32 is a cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 along line F-F.
- the mover 50 can be installed in the accommodating space 23 of the base 20.
- the first slide groove 5113a of the focus bracket 511 can cooperate with the first slide shaft 91.
- the second slide groove 5113b of the focus bracket 511 can cooperate with the second slide shaft 92.
- the focus bracket 511 can move relative to the base 20 along the axial direction of the first slide shaft 91.
- the axial direction of the first slide shaft 91 is the Z-axis direction.
- the mover 50 can move relative to the base 20 along the Z-axis direction.
- the first magnetic sheet 40 can absorb the focusing magnetic part 512.
- the focusing bracket 511 can squeeze the first sliding shaft 91 and the second sliding shaft 92 along the Y-axis direction under the action of the adsorption force between the first magnetic sheet 40 and the focusing magnetic part 512, so that the first sliding shaft 91 can fit tightly in the first sliding groove 5113a, and the second sliding shaft 92 can fit tightly in the second sliding groove 5113b.
- the mover 50 can be effectively prevented from tipping over when it moves relative to the base 20 along the Z-axis direction.
- the sub-magnetic sheet 41 (see FIG. 8 ) can also absorb the focusing magnetic member 512. In this way, the sub-magnetic sheet 41 can absorb the focusing magnetic member 512 together with the first magnetic sheet 40, thereby enhancing the adsorption force of the first magnetic sheet 40 on the focusing magnetic member 512. In addition, the sub-magnetic sheet 41 can also be used to balance the Z-direction interference force generated by the first magnetic sheet 40.
- the sliding shaft 90 may also be replaced by a plurality of balls.
- the first sensor 81 can be used to detect the magnetic field strength when the focusing magnetic member 512 is in different positions, so as to detect the position of the focusing bracket 511.
- the second sensor 82 can be used to detect the magnetic field strength when the first sub-magnetic member 5231 is in different positions, so as to detect the position of the anti-shake bracket 52a in the X-axis direction.
- the third sensor 83 can be used to detect the magnetic field strength when the second magnetic member 524 is in different positions, so as to detect the position of the anti-shake bracket 52a in the Y-axis direction.
- the driving chip 60 can simultaneously obtain information from the first sensor 81, the second sensor 82 and the third sensor 83.
- Fig. 33 is a cross-sectional view of an embodiment of the lens motor 1 shown in Fig. 4 on line D-D.
- Fig. 34 is a schematic structural diagram of the lens motor 1 and the lens 2 shown in Fig. 3.
- the first avoidance groove 211 of the base 20 can be connected to the second avoidance groove 50a of the focus bracket 511 and the bottom space 5112a of the second part 5112 ( Figure 14 illustrates the second avoidance groove 50a from another angle, and Figure 15 illustrates the bottom space 5112a from another angle).
- the first avoidance groove 211, the second avoidance groove 50a and the bottom space 5112a of the second part 5112 can together constitute the installation space 1a of the lens motor 1.
- the installation space 1a can be used to accommodate at least part of other lenses or prisms of the camera module 100.
- Figure 33 illustrates the first avoidance groove 211, the second avoidance groove 50a and the bottom space 5112a of the second part 5112 through dotted lines.
- the focus coil 71 can be arranged opposite to the focus magnetic member 512.
- the focus coil 71 and the focus magnetic member 512 can together constitute the focus driving mechanism 51a of the focus mover 51.
- the first sub-coil 7211 can be arranged opposite to the first sub-magnetic member 5231.
- the second coil 722 can be arranged opposite to the second magnetic member 524.
- the second sub-coil 7212 can be arranged opposite to the second sub-magnetic member 5232.
- the first sub-coil 7211 , the second coil 722 , the second sub-coil 7212 , the first sub-magnetic component 5231 , the second magnetic component 524 and the second sub-magnetic component 5232 may together constitute the anti-shake driving mechanism 52 b of the anti-shake component 52 .
- the focus magnetic member 512 can cooperate with the focus coil 71, thereby driving the focus bracket 511 and driving the first bracket 521 and the second bracket 522 (i.e., the anti-shake bracket 52a) to move along the Z-axis direction relative to the base 20.
- the lens 2 can move along the Z-axis direction relative to the base 20 under the action of the mover 50 to achieve the autofocus function.
- the first sub-magnetic member 5231 can cooperate with the first sub-coil 7211, and the second sub-magnetic member 5232 can cooperate with the second sub-coil 7212, thereby driving the first bracket 521 and driving the second bracket 522 to move relative to the focus bracket 511 along the X-axis direction, that is, the second bracket 522 moves relative to the base 20 along the X-axis direction.
- the second magnetic member 524 can cooperate with the second coil 722, thereby driving the second bracket 522 to move relative to the first bracket 521 along the Y-axis direction, that is, the second bracket 522 moves relative to the base 20 along the Y-axis direction.
- the lens 2 can move relative to the base 20 on the X-Y plane under the action of the mover 50 to achieve the optical image stabilization function.
- the driving force generated by the cooperation of the focusing magnetic part 512 and the focusing coil 71 is the Z-direction driving force of the mover 50.
- the Z-direction driving force can be greater than the sum of the overall gravity of the mover 50 and the lens 2, the friction between the focusing bracket 511 and the first sliding shaft 91 and the second sliding shaft 92, the adsorption force between the sub-magnetic sheet 41 (please refer to Figure 8) and the focusing magnetic part 512, and the adsorption force between the first magnetic sheet 40 and the focusing magnetic part 512.
- the sum of the driving force generated by the cooperation of the first sub-magnetic part 5231 and the first sub-coil 7211 and the driving force generated by the cooperation of the second sub-magnetic part 5232 and the second sub-coil 7212 is the X-direction driving force of the mover 50.
- the X-direction driving force can be greater than the sum of the overall gravity of the anti-shake sub-52 and the lens 2 and the friction between the first bracket 521 and the focusing bracket 511.
- the driving force generated by the cooperation of the second magnetic part 524 and the second coil 722 is the Y-direction driving force of the mover 50.
- the Y-direction driving force may be greater than the sum of the overall gravity of the second bracket 522 and the lens 2 and the friction force between the second bracket 522 and the first bracket 521 .
- the lens motor 1 in this embodiment includes a driving chip 60, an anti-shake actuator 52 and a focus actuator 51.
- the anti-shake bracket 52a can be located in the receiving space 511d of the focus bracket 511.
- the lens 2 can be installed on the anti-shake bracket 52a.
- the driving chip 60 can control the focus driving mechanism 51a so that the focus driving mechanism 51a drives the focus bracket 511 to drive the anti-shake bracket 52a to move relative to the base 20 along the Z-axis direction.
- the driving chip 60 can also control the anti-shake driving mechanism 52b so that the first bracket 521 drives the second bracket 522 to move relative to the base 20 along the X-axis direction, and the second bracket 522 moves relative to the base 20 along the Y-axis direction.
- the lens 2 when the lens 2 is installed in the second through hole 5224 of the second bracket 522, by controlling the second bracket 522 to move relative to the base 20 in the Z-axis direction and on the X-Y plane, the lens 2 can be driven to move relative to the base 20 in the Z-axis direction and on the X-Y plane.
- the lens motor 1 of this embodiment is an integrated motor having both anti-shake function and focus function
- the driving chip 60 is built inside the lens motor 1.
- the driving chip inside the lens motor 1 can simultaneously control the second bracket 522 to move relative to the base 20 along the Z-axis direction to achieve the focus function, and control the second bracket 522 to move relative to the base 20 in the X-Y plane to achieve the anti-shake function.
- the lens motor 1 of this embodiment is smaller in size, which is conducive to reducing the stacking size of the camera module 100, simplifying the process flow, and also helping to save the internal space of the electronic device 1000.
- the lens motor 1 in this embodiment uses a single driving chip 60 to simultaneously control the anti-shake driving mechanism 52b of the anti-shake actuator 52 and the focus driving mechanism 51a of the focus actuator 51.
- the driver chip 60 can obtain the corresponding position information by performing corresponding algorithm compensation. In this way, the information exchange between the anti-shake element 52 and the focus element 51 is faster, and the driver chip 60 does not need to perform additional data burning, which is conducive to improving the efficiency of the driver chip 60 in obtaining position information and improving the response speed of the lens motor 1.
- the driver chip 60 of the traditional lens motor 1 is usually arranged on the circuit board outside the lens motor 1. This makes it impossible to burn the relevant calibration data (such as the correction data of the position sensor 80, the linearity calibration data, and the calibration data of the crosstalk of the focus actuator 51 to the anti-shake actuator 52, etc.) of the driver chip 60 in the motor factory during the production process of the camera module 100, and it is necessary to perform relevant calibration work on the driver chip 60 in the module factory.
- the driver chip 60 in this embodiment is built into the lens motor 1, so that during the production process of the camera module 100, the relevant calibration data can be directly burned into the driver chip 60 in the lens motor 1 at the motor factory, saving the subsequent calibration process in the module factory and improving production efficiency.
- the characteristics of the lens motor 1 vary due to factors such as reliability or module process, it is beneficial to compare the data of the lens motor 1 after the characteristic variation.
- the traditional focus actuator 51 is usually connected to the base 20 by sliding through the ball 529, or connected to the base 20 by a reed.
- the ball-type focus actuator 51 cannot achieve self-locking due to the small friction coefficient of the ball 529.
- the reed-type focus actuator 51 is easy to affect the video effect of the electronic device 1000 due to the poor anti-vibration effect of the reed.
- the focus bracket 511 in this embodiment is slidably connected to the base 20 through the sliding shaft 90, which is a sliding shaft type focus actuator 51.
- the friction coefficient of the sliding shaft 90 is large, so that the focus actuator 51 can still achieve self-locking through the friction between itself and the sliding shaft 90 after power failure, so that there is no need for an external power supply to continuously power the lens motor 1. It is beneficial to save power and improve the battery life of the electronic device 1000.
- the anti-vibration effect of the sliding shaft 90 is good, which is beneficial to ensure the video effect of the electronic device 1000.
- the focus bracket 511 in the sliding shaft type focus actuator 51 moves relative to the base 20 along the Z-axis direction, it is less likely to deflect, which is beneficial to ensure the focus effect of the lens motor 1 and improve the imaging quality of the camera module 100.
- the tilt angle of the lens 2 can be less than or equal to 3min.
- the lens motor 1 in this embodiment simultaneously inputs signals to the first sub-coil 7211 and the second sub-coil 7212, thereby pushing the first bracket 521 and driving the second bracket 522 to move relative to the base 20 along the X-axis direction.
- the mover 50 can obtain a greater X-direction driving force, which is beneficial to increase the speed at which the second bracket 522 moves relative to the base 20 along the X-axis direction, and improve the response speed of the lens motor 1 in the X-axis direction.
- Fig. 35 is a partial cross-sectional view of the camera module 100 shown in Fig. 2b on line G-G in one embodiment.
- Fig. 36 is a cross-sectional view of the camera module 100 shown in Fig. 2b on line G-G in one embodiment.
- the module housing 7 can cover the module base 5.
- the module base 5 can have an internal space 5a. At least part of the prism 4 can be accommodated in the internal space 5a of the module base 5.
- the module housing 7 can be fixedly connected to the module base 5 by adhesive.
- the module base 5 may include a first upper surface 501 and a second upper surface 502.
- the first upper surface 501 and the second upper surface 502 have a height difference.
- the second upper surface 502 may be higher than the first upper surface 501. It should be understood that the height referred to in this embodiment refers to the height in the Z-axis direction.
- the first upper surface 501 may be provided with a first light-transmitting hole 5011.
- the second upper surface 502 may be provided with a second light-transmitting hole 5021.
- the first light-transmitting hole 5011 may be connected to the second light-transmitting hole 5021 through the inner space 5a of the module base 5.
- the prism 4 may be fixed to the module base 5.
- the prism 4 may be higher than the first upper surface 501.
- the lens motor 1 may be fixedly connected to the first upper surface 501.
- the installation space 1a of the lens motor 1 may be arranged opposite to the first light-transmitting hole 5011 and connected to the internal space 5a of the module base 5.
- a part of the prism 4 may be located in the internal space 5a of the module base 5.
- Another part of the prism 4 may be located in the installation space 1a of the lens motor 1.
- the prism 4 may include a first surface 401, a first inclined surface 402, a second surface 403, and a second inclined surface 404 connected in sequence.
- the first surface 401 may include a first area 4011 and a second area 4012.
- the lens 2 and the photosensitive chip 601 may be located on the side of the first surface 401 facing away from the second surface 403.
- the lens 2 may be arranged opposite to the first area 4011.
- the photosensitive chip 601 may be arranged opposite to the second area 4012.
- the circuit module 6 may include a photosensitive chip 601, a module circuit board 602, and a filter 603.
- the photosensitive chip 601 may be fixed to the module circuit board 602.
- the filter 603 may be located on a side of the photosensitive chip 601 away from the module circuit board 602.
- the photosensitive chip 601 is also called an image sensor or a photosensitive element.
- the photosensitive chip 601 may be used to collect ambient light and convert the image information carried by the ambient light into an electrical signal.
- the circuit module 6 can be fixedly connected to the second upper surface 502.
- the filter 603 can be arranged opposite to the second light-transmitting hole 5021.
- the ambient light After passing through the lens 2, the ambient light enters the prism 4 from the first area 4011 of the first surface 401 of the prism 4, and after multiple reflections inside the prism 4, it is emitted from the second area 4012 of the first surface 401, passes through the second light-transmitting hole 5021 and the filter 603 in sequence, and finally enters the photosensitive chip 601 (Figure 36 also illustrates the propagation path of the ambient light).
- the camera module 100 in this embodiment sets an installation space 1a in the lens motor 1 and accommodates at least a portion of the prism 4 in the installation space 1a, so that the lens motor 1 can sink relative to the prism 4 to lower the height of the lens motor 1, thereby achieving an overall reduction in the height of the camera module 100, which is conducive to achieving a thin setting of the camera module 100.
- Fig. 37 is a partial cross-sectional schematic diagram of another embodiment of the camera module 100 shown in Fig. 36.
- Fig. 38 is a partial cross-sectional schematic diagram of yet another embodiment of the camera module 100 shown in Fig. 36.
- the camera module 100 in this embodiment has substantially the same structure as the camera module 100 shown in FIG. 35 , and the same parts are not repeated here.
- the photosensitive chip 601 of the camera module 100 in this embodiment can be located at the bottom of the prism 4.
- the cross-sectional shape of the prism 4 can be substantially a parallelogram. External light can be incident on the prism 4 through the lens assembly 400, and enter the photosensitive chip 601 after being reflected by the prism 4.
- the camera module 100 in this embodiment has substantially the same structure as the camera module 100 shown in FIG35 , and the same parts are not repeated here.
- the difference is that the photosensitive chip 601 of the camera module 100 in this embodiment can be located on the peripheral side of the prism 4.
- the cross-sectional shape of the prism 4 can be approximately trapezoidal. External light can be incident on the prism 4 through the lens assembly 400 and enter the photosensitive chip 601 after being reflected by the prism 4.
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Abstract
Description
Claims (19)
- 一种镜头马达(1),其特征在于,包括定子(1b)、对焦支架(511)、防抖支架(52a)、对焦驱动机构(51a)、防抖驱动机构(52b)以及驱动芯片(60);所述对焦支架(511)活动连接所述定子(1b),所述防抖支架(52a)活动连接所述对焦支架(511),且位于所述对焦支架(511)的内侧,所述防抖支架(52a)用于安装镜头(2);所述驱动芯片(60)用于控制所述对焦驱动机构(51a),以使所述对焦驱动机构(51a)驱动所述对焦支架(511)带动所述防抖支架(52a)相对所述定子(1b)沿第一方向移动,所述驱动芯片(60)还用于控制所述防抖驱动机构(52b),以使所述防抖驱动机构(52b)驱动所述防抖支架(52a)相对所述对焦支架(511)沿第二方向和第三方向移动,所述第一方向为所述镜头(2)的光轴方向,所述第二方向、所述第三方向与所述第一方向不同。
- 根据权利要求1所述的镜头马达(1),其特征在于,所述定子(1b)包括底座(20),所述对焦支架(511)活动连接所述底座(20),所述底座(20)设有第一避让孔(222a),所述第一避让孔(222a)连通所述底座(20)的外周侧和内周侧;所述镜头马达(1)还包括电路板(30),所述电路板(30)固定在所述底座(20)的外周侧,所述驱动芯片(60)固定在所述电路板(30)上,且电连接所述电路板(30),所述驱动芯片(60)的至少部分位于所述第一避让孔(222a)内。
- 根据权利要求2所述的镜头马达(1),其特征在于,所述防抖驱动机构(52b)包括防抖线圈(72)与防抖磁性件(52c),所述防抖线圈(72)固定在所述电路板(30)上,且电连接所述电路板(30),所述防抖磁性件(52c)固定在所述防抖支架(52a)上,所述防抖线圈(72)与所述防抖磁性件(52c)相对设置;所述防抖线圈(72)电连接所述驱动芯片(60),所述驱动芯片(60)还用于控制所述防抖线圈(72),以通过所述防抖线圈(72)和所述防抖磁性件(52c)的配合来驱动所述防抖支架(52a)相对所述对焦支架(511)沿所述第二方向移动,或者驱动所述防抖支架(52a)相对所述对焦支架(511)沿所述第三方向移动。
- 根据权利要求3所述的镜头马达(1),其特征在于,所述防抖线圈(72)通过所述第一避让孔(222a)朝向所述防抖磁性件(52c)。
- 根据权利要求2至4中任一项所述的镜头马达(1),其特征在于,所述底座(20)设有第一避让槽(211),所述第一避让槽(211)贯穿所述底座(20)的底部;所述对焦支架(511)设有第二避让槽(50a),所述第二避让槽(50a)连通所述防抖支架(52a)的底部空间(5112a)以及所述第一避让槽(211);所述第一避让槽(211)、所述第二避让槽(50a)和所述防抖支架(52a)的底部空间(5112a)构成安装空间(1a),所述安装空间(1a)用来容置棱镜(4)的一部分。
- 根据权利要求2至5中任一项所述的镜头马达(1),其特征在于,所述防抖支架(52a)包括第一支架(521)与第二支架(522),所述第一支架(521)位于所述对焦支架(511)与所述第二支架(522)的底部之间,所述第一支架(521)活动连接所述对焦支架(511),所述第二支架(522)活动连接所述第一支架(521);所述驱动芯片(60)用于控制所述防抖驱动机构(52b),以使所述防抖驱动机构(52b)驱动所述第一支架(521)带动所述第二支架(522)相对所述对焦支架(511)沿所述第二方向移动,所述驱动芯片(60)还用于控制所述防抖驱动机构(52b),以使所述防抖驱动机构(52b)驱动所述第二支架(522)相对所述第一支架(521)沿所述第三方向移动。
- 根据权利要求6所述的镜头马达(1),其特征在于,所述防抖线圈(72)包括第一线圈(721)与第二线圈(722),所述防抖磁性件(52c)包括第一磁性件(523)与第二磁性件(524),所述第一线圈(721)与所述第一磁性件(523)相对设置,所述第二线圈(722)与所述第二磁性件(524)相对设置;所述驱动芯片(60)用于控制所述第一线圈(721),以通过所述第一线圈(721)与所述第一磁性件(523)的配合来驱动所述第一支架(521)相对所述对焦支架(511)沿所述第二方向移动,所述驱动芯片(60)还用于控制所述第二线圈(722),以通过所述第二线圈(722)和所述第二磁性件(524)的配合来驱动所述第二支架(522)相对所述第一支架(521)沿所述第三方向移动。
- 根据权利要求7所述的镜头马达(1),其特征在于,所述第一线圈(721)包括第一子线圈(7211)和第二子线圈(7212),所述第一磁性件(523)包括第一子磁性件(5231)以及第二子磁性件(5232),所述第一子磁性件(5231)与所述第二子磁性件(5232)位于所述第一子线圈(7211)和所述第二子线圈(7212)之间,所述第一子线圈(7211)与所述第一子磁性件(5231)相对设置,所述第二子线圈(7212)与所述第二子磁性件(5232)相对设置。
- 根据权利要求6至8中任一项所述的镜头马达(1),其特征在于,所述第一支架(521)通过滚珠(529)活动连接所述对焦支架(511),和/或,所述第二支架(522)通过滚珠(529)活动连接所述第一支架(521)。
- 根据权利要求6至9中任一项所述的镜头马达(1),其特征在于,所述第一支架(521)包括第一支部(521a)和第二支部(521b),所述第二支部(521b)连接所述第一支部(521a),所述第二支部(521b)与所述第一支部(521a)之间的角度小于180°;所述对焦支架(511)的底部包括第一部分(5111)和第二部分(5112),所述第二部分(5112)堆叠于所述第一部分(5111),所述第二部分(5112)的一部分与所述第一支部(521a)相对设置,所述第二部分(5112)的另一部分与所述第二支部(521b)相对设置。
- 根据权利要求10所述的镜头马达(1),其特征在于,所述底部空间(5112a)位于所述第二部分(5112)的底部,所述第一部分(5111)的内侧面朝向所述第二部分(5112)的底部空间(5112a)。
- 根据权利要求2至11中任一项所述的镜头马达(1),其特征在于,所述对焦支架(511)通过滑轴(90)活动连接所述定子(1b)。
- 根据权利要求2至12中任一项所述的镜头马达(1),其特征在于,对焦驱动机构(51a)包括对焦线圈(71)和对焦磁性件(512),所述对焦线圈(71)固定在所述电路板(30)上,且电连接所述电路板(30),所述对焦磁性件(512)固定在所述对焦支架(511)上,所述对焦线圈(71)与所述对焦磁性件(512)相对设置;所述对焦线圈(71)电连接所述驱动芯片(60),所述驱动芯片(60)还用于控制所述对焦线圈(71),以通过所述对焦线圈(71)与所述对焦磁性件(512)的配合来驱动所述对焦支架(511)带动所述防抖支架(52a)相对所述定子(1b)沿所述第一方向移动。
- 根据权利要求13所述的镜头马达(1),其特征在于,所述镜头马达(1)还包括第一磁吸片(40),所述第一磁吸片(40)固定于所述电路板(30),所述对焦线圈(71)位于所述第一磁吸片(40)与所述对焦磁性件(512)之间,所述对焦支架(511)在所述第一磁吸片(40)与所述对焦磁性件(512)之间的作用力下挤压所述定子(1b)。
- 根据权利要求2至14中任一项所述的镜头马达(1),其特征在于,所述镜头马达(1)还包括第一传感器(81),所述第一传感器(81)固定于所述电路板(30),且电连接所述电路板(30),所述驱动芯片(60)电连接所述第一传感器(81),所述第一传感器(81)用于检测所述对焦支架(511)的位置,所述驱动芯片(60)还用于获取所述第一传感器(81)的信息。
- 根据权利要求1至15中任一项所述的镜头马达(1),其特征在于,所述镜头马达(1)还包括盖板(53),所述盖板(53)连接所述对焦支架(511),所述盖板(53)位于所述防抖支架(52a)远离所述对焦支架(511)的一侧。
- 一种摄像模组(100),其特征在于,所述摄像模组(100)包括镜头(2)、棱镜(4)、感光芯片(601)、以及权利要求1至16中任一项所述的镜头马达(1),所述镜头(2)安装于所述防抖支架(52a),所述棱镜(4)位于所述镜头(2)的出光侧,所述感光芯片(601)位于所述棱镜(4)的出光侧。
- 根据权利要求17所述的摄像模组(100),其特征在于,所述棱镜(4)包括依次连接的第一面(401)、第一斜面(402)、第二面(403)以及第二斜面(404),所述镜头(2)与所述感光芯片(601)均位于所述第一面(401)背向所述第二面(403)的一侧,所述第一面(401)包括第一区域(4011)与第二区域(4012),所述镜头(2)与所述第一区域(4011)相对设置,所述感光芯片(601)与所述第二区域(4012)相对设置;其中,环境光线经过所述镜头(2)后,由所述第一面(401)的第一区域(4011)进入所述棱镜(4),在所述棱镜(4)内部发生多次反射后,由所述第一面(401)的第二区域(4012)射出,所述感光芯片(601)采集穿过所述棱镜(4)的环境光线。
- 一种电子设备(1000),其特征在于,包括设备壳体以及权利要求17或18所述的摄像模组(100),所述摄像模组(100)设于所述设备壳体(200)。
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