Camera module and electronic device

Abstract

The present application provides a camera module and an electronic device. The camera module comprises a focusing module, a first reflection module and an image sensor module which are arranged from an object side to an image side, wherein the first reflection module is configured to change an optical axis in a first direction to a second direction; the focusing module comprises a focusing motor and a lens; the focusing motor comprises a left side portion, a right side portion, a top portion and a bottom portion, the left side portion and the right side portion are arranged along the first direction, the top portion and the bottom portion are arranged along the second direction, the focusing motor has a mounting space, the mounting space runs through the left side portion and the right side portion, and the lens is mounted in the mounting space; and the bottom portion of the focusing motor is recessed towards the top portion to form a clearance space, the clearance space extends to the right side portion of the focusing motor, and a portion of the image sensor module is located in the clearance space. In the first direction, the image sensor module and the focusing motor have an overlapping area, thereby reducing the size of the camera module in the first direction, facilitating the miniaturization of the camera module.

Description

Camera modules and electronic equipment

[0001] This application claims priority to the Chinese patent application with application number 202311169965.9 filed with the State Intellectual Property Office of China on September 8, 2023, and priority to the Chinese patent application with the invention name “Camera module and electronic device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of camera technology, and in particular to a camera module and an electronic device. Background Art

[0003] Traditional camera modules typically utilize a guide rail structure, coupled with an electromagnetic drive assembly consisting of coils and magnets, to directional drive the actuator assembly. However, this has several drawbacks: The guide rail structure requires a relatively long rail, which increases the length of the focus module as the required focus stroke increases. Furthermore, as the size of photosensitive chips increases in the future, the size of camera modules will further increase. Traditional camera modules have become a burden on the overall camera system space. Therefore, the need for a smaller camera module is particularly pressing.

[0004] Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a camera module and an electronic device, wherein the camera module has a small size.

[0006] In a first aspect, the present application provides a camera module. The camera module includes a focus module, a first reflective module, and an image sensor module arranged from an object side to an image side, wherein the focus module and the first reflective module are arranged along a first direction, and the first reflective module and the image sensor module are arranged along a second direction. The first reflective module is configured to change an optical axis from the first direction to the second direction, and the first direction intersects the second direction.

[0007] The focus module includes a focus motor and a lens;

[0008] The focus motor includes a left portion, a right portion, a top portion, and a bottom portion. The left portion and the right portion are arranged along a first direction, and the right portion is arranged relative to the left portion and close to the first reflective module. The top portion and the bottom portion are arranged along a second direction. The focus motor has an installation space that runs through the left portion and the right portion. The lens is installed in the installation space.

[0009] The bottom of the focus motor is recessed toward the top to form an escape space, the escape space extends to the right side of the focus motor, and a portion of the image sensor module is located in the escape space.

[0010] It can be understood that this embodiment first sets an avoidance space at the bottom of the focus motor, and the avoidance space also extends to the right side of the focus motor, and then locates the image sensor module at the bottom of the focus motor, and partially locates it in the avoidance space. Therefore, on the one hand, in the first direction X, the image sensor module and the focus motor have an overlapping area, thereby reducing the size of the camera module in the first direction X, which is conducive to the miniaturization of the camera module. On the other hand, in the second direction Z, the image sensor module and the focus motor have an overlapping area, thereby reducing the size of the camera module in the second direction Z, which is conducive to the thinning of the camera module.

[0011] In one possible implementation, the focus motor includes a base, a focus bracket, a sliding shaft, and a housing. The focus bracket is slidably connected to the base via the sliding shaft, and the lens is mounted on the focus bracket. The base is fixed to the bottom plate of the housing, and the base and the bottom plate enclose a movable space, and the focus bracket is located in the movable space.

[0012] The sliding shaft is fixed to the end portion of the base away from the bottom plate, and an escape space is formed on the bottom plate.

[0013] It is understood that by fixing the sliding shaft to the end of the base away from the bottom plate, space can be freed up at the bottom of the base. In this case, a portion of the bottom plate of the housing can be sunk toward the top of the base, so that a clearance space can be formed on the side of the bottom plate of the housing facing away from the focus bracket.

[0014] In one possible implementation, the avoidance space connects to the active space, with a portion of the image sensor module exposed relative to the active space. A second light-transmitting hole is provided on the base, connecting to the active space. A portion of the first reflective module extends into the active space through the second light-transmitting hole and is secured to the image sensor module. This allows for a more compact arrangement of the first reflective module and the focusing module, improving space utilization.

[0015] In one possible implementation, at least one end of the sliding shaft is welded to a metal insert in the base.

[0016] It is understood that, compared to the solution of fixing the two ends of the sliding shaft to the base by only gluing, the connection between the sliding shaft and the base in this embodiment is more stable and more secure. In this way, the sliding shaft is not likely to fall off from the base, ensuring the reliability of the connection of the sliding shaft.

[0017] In one possible implementation, the focus motor includes a first coil, a first magnetic member, a second coil, and a second magnetic member, wherein the first magnetic member and the second magnetic member are fixed to the focus bracket and are located on both sides of the lens;

[0018] The first coil and the second coil are fixed on the base at intervals, the first coil faces the first magnetic component, and the second coil faces the second magnetic component, so as to drive the focus bracket to slide relative to the base along the first direction.

[0019] In one possible implementation, the sliding shaft includes a first sliding shaft and a second sliding shaft, and the first sliding shaft and the second sliding shaft are both made of magnetic conductive material;

[0020] The first sliding shaft is disposed close to the first magnetic member relative to the second magnetic member, and the second sliding shaft is disposed close to the second magnetic member relative to the first magnetic member;

[0021] The focusing bracket is adsorbed on the first sliding shaft and the second sliding shaft through the magnetic attraction between the first sliding shaft and the first magnetic component and the magnetic attraction between the second sliding shaft and the second magnetic component.

[0022] It is understood that the first and second sliding shafts can serve as guides for the focus bracket to slide relative to the base, and can also serve as magnetic elements to attach the focus bracket to the first and second sliding shafts. The first and second sliding shafts have a "one-piece, multiple-purpose" effect.

[0023] In one possible implementation, the focus motor also includes a first magnetic component and a second magnetic component, and the first magnetic component and the second magnetic component are fixed on the base; the first magnetic component is located on the side of the first magnetic component close to the first sliding shaft, and is spaced apart from the first sliding shaft; the second magnetic component is located on the side of the second magnetic component close to the second sliding shaft, and is spaced apart from the second sliding shaft.

[0024] It is understood that a third magnetic attraction force can be generated between the first magnetic attraction member and the first magnetic member. The third magnetic attraction force can be used to further eliminate the gravitational posture difference of the mover when the camera module is in various postures, so as to adsorb the focus bracket on the first sliding shaft and the second sliding shaft, so that the focus bracket has an area close to the base, thereby further ensuring that the focus bracket is not easily detached from the first sliding shaft and the second sliding shaft, and the focus bracket can maintain contact with the first sliding shaft and the second sliding shaft, further achieving pre-tightening.

[0025] A fourth magnetic attraction force is generated between the second magnetic member and the second magnetic member. The fourth magnetic attraction force can be used to further eliminate the gravitational posture difference of the mover when the camera module is in various postures, thereby further adsorbing the focus bracket on the first and second sliding shafts, so that the focus bracket has an area close to the base, thereby further ensuring that the focus bracket is not easily detached from the first and second sliding shafts, and the focus bracket can maintain contact with the first and second sliding shafts, further achieving pre-tightening.

[0026] It is understood that the size and shape of the first and second magnetic members of this embodiment can be flexibly set as needed, so the magnetic attraction force between the first and second magnetic members can be flexibly set as needed. In this way, by adjusting the size of the magnetic attraction force between the first and second magnetic members, the magnetic attraction force between the second and second magnetic members can be further attracted to the first and second sliding shafts, making it less likely for the focus bracket to fall off the first and second sliding shafts.

[0027] In one possible implementation, the sum of the magnetic attraction force between the first sliding shaft and the first magnetic member, the magnetic attraction force between the second sliding shaft and the second magnetic member, the magnetic attraction force between the first magnetic member and the first magnetic member, and the magnetic attraction force between the second magnetic member and the second magnetic member is F;

[0028] The sum of the gravity of the focusing bracket, the first magnetic component and the second magnetic component is G;

[0029] Among them, F and G satisfy: F≥5G.

[0030] It is understandable that when F and G satisfy the above relationship, it can be ensured that the friction force generated by the magnetic attraction acting on the sliding shaft can be greater than the gravity of the mover and other forces that may cause the mover to move in a static state (such as magnetic interference, inertia, etc., that is, the friction force caused by the magnetic attraction > the gravity of the mover + the external magnetic interference force of the camera module + the inertia force generated by the camera module during human movement). At this time, this embodiment can achieve that the mover can be stationary at the current target position when the power is off (the first coil and the second coil are not energized), that is, when the mover is in the target position, there is no need to continuously energize the first coil and the second coil to maintain the current position, thereby achieving the purpose of reducing power consumption.

[0031] In one possible implementation, the base includes a third side portion and a fourth side portion arranged along a third direction, the third direction intersecting both the first direction and the second direction; the third side portion is provided with a first through hole, and the fourth side portion is provided with a second through hole;

[0032] The focus motor includes a first circuit board, the first circuit board including a first board portion, a second board portion, and a third board portion connected in sequence, the first board portion and the third board portion being arranged opposite each other; a first coil is fixed to a side of the first board portion facing the third board portion and is electrically connected to the first board portion; a second coil is fixed to a side of the third board portion facing the first board portion and is electrically connected to the third board portion;

[0033] The first plate portion is fixed to a side of the third side portion away from the fourth side portion, and the third plate portion is fixed to a side of the fourth side portion away from the third side portion. The first coil is located within the first through-hole, and the second coil is located within the second through-hole. This arrangement of the first coil, the second coil, and the base is compact, facilitating improved space utilization.

[0034] In one possible implementation, the housing also includes a first side panel and a second side panel, the first side panel and the second side panel are connected to the periphery of the bottom panel at intervals, the first side panel and the second side panel are arranged opposite to each other, and the first side panel and the second side panel are made of metal material; the first side panel is fixed to the side of the first plate portion of the first circuit board away from the first coil, and the second side panel is fixed to the side of the third plate portion of the first circuit board away from the second coil.

[0035] It is understood that the first side panel of the housing can be used to increase the structural strength of the first board portion of the first circuit board, reducing the risk of deformation of the first board portion of the first circuit board. The second side panel of the housing can be used to increase the structural strength of the third board portion of the first circuit board, reducing the risk of deformation of the third board portion of the first circuit board.

[0036] In one possible implementation, the focus motor further includes a Hall sensor, a controller, a second circuit board, a magnetic grid, and a tunnel magnetoresistive sensor;

[0037] The Hall sensor, the controller and the tunnel magnetoresistive sensor are fixed on the second circuit board at intervals, the Hall sensor is electrically connected to the controller through the second circuit board, and the tunnel magnetoresistive sensor is electrically connected to the controller through the second circuit board;

[0038] The second circuit board is fixed to the bottom plate, and the Hall sensor is used to measure the magnetic difference of the first magnetic member or the second magnetic member during the movement process, and confirm the first movement stroke of the focus bracket;

[0039] The focus motor further includes a magnetic grid fixed on the focus bracket, and the tunnel magnetoresistive sensor is used to measure the magnetic difference of the magnetic grid during movement and confirm the multiple second movement strokes of the focus bracket;

[0040] The controller is used for confirming a value closest to the first motion stroke from the plurality of second motion strokes according to the first motion stroke and the plurality of second motion strokes.

[0041] It can be understood that through the cooperation of the tunnel magnetoresistance sensor and the Hall sensor, the movement stroke of the mover can be accurately determined, thereby solving the problem that the tunnel magnetoresistance sensor is difficult to uniquely determine the movement stroke of the mover on the one hand, and on the other hand, solving the problem that the Hall sensor is difficult to accurately determine the movement stroke of the mover.

[0042] In one possible implementation, the second circuit board is fixed to a side of the bottom plate away from the top plate;

[0043] The bottom plate is provided with a first through hole and a second through hole arranged at intervals;

[0044] The Hall sensor is located in the first through hole, and the Hall sensor is exposed relative to the bottom plate through the first through hole;

[0045] The tunnel magnetoresistive sensor is located in the second through hole, and the tunnel magnetoresistive sensor is exposed relative to the bottom plate through the second through hole.

[0046] It can be understood that by providing a first through hole and a second through hole arranged at intervals on the bottom plate of the housing, and providing the Hall sensor in the first through hole, and the tunnel magnetoresistive sensor in the second through hole. In this way, on the one hand, the Hall sensor can be exposed relative to the bottom plate of the housing through the first through hole to measure the magnetic difference of the second magnetic part during movement. On the other hand, the tunnel magnetoresistive sensor can be exposed relative to the bottom plate of the housing through the second through hole to measure the magnetic difference of the magnetic grating during movement. On the other hand, the Hall sensor and the tunnel magnetoresistive sensor can utilize the thickness space of the bottom plate of the housing, thereby improving the space utilization rate of the focus motor, which is conducive to the thinning setting of the focus motor.

[0047] In one possible implementation, the periphery of the first through hole protrudes toward the focusing bracket, and relative to the top surface of the Hall sensor, the top surface of the protruding portion is close to the focusing bracket; in this way, the focusing bracket will not collide with the Hall sensor during movement along the first direction X, and the Hall sensor is not easily damaged by the passive particle.

[0048] Alternatively, the periphery of the second through-hole protrudes toward the focus bracket, and relative to the top surface of the tunnel magnetoresistive sensor, the top surface of the protruding portion is closer to the focus bracket. In this way, the focus bracket will not collide with the tunnel magnetoresistive sensor during movement in the first direction X, and the tunnel magnetoresistive sensor is less likely to be damaged by the passive particle.

[0049] In a possible implementation, the focus motor further includes a magnetic isolation member, which is fixed on the focus bracket;

[0050] The magnetic isolation member is located on a side of the magnetic grid close to the first magnetic member, and the magnetic isolation member can be used to prevent the first magnetic member from generating magnetic interference on the tunnel magnetoresistive sensor.

[0051] Alternatively, the magnetic isolation member, which is located on a side of the magnetic grid close to the second magnetic member, can be used to prevent the second magnetic member from generating magnetic interference on the tunnel magnetoresistive sensor.

[0052] Alternatively, a portion of the magnetic shield is located on the side of the magnetic grid close to the first magnetic component, and a portion is located on the side of the magnetic grid close to the second magnetic component. The magnetic shield can be used to prevent the first and second magnetic components from generating magnetic interference on the tunnel magnetoresistive sensor.

[0053] In one possible implementation, the focusing bracket includes a first impact surface and a second impact surface disposed in back-to-back directions, and the first impact surface and the second impact surface are arranged along a first direction;

[0054] The focus motor also includes a first buffer, which is connected to the focus bracket, and at least a portion of the first buffer can protrude relative to the first impact surface; in this way, when the focus bracket moves along the first direction X, the first buffer can serve as a stop member. When the first buffer hits the base or other structures of the focus motor, the kinetic energy can be absorbed by the deformation of the first buffer, thereby reducing both the abnormal sound of the impact and the dust generated by the impact. In addition, since the focus bracket no longer directly hits the base, it can be ensured that the focus bracket and the base are not damaged, reducing the risk of failure of the focus bracket and the base, that is, ensuring the reliability of the focus bracket.

[0055] And / or, the focus motor also includes a second buffer, which is connected to the focus bracket, and at least a portion of the second buffer can protrude relative to the second impact surface. In this way, when the focus bracket moves along the first direction X, the second buffer can serve as a stopper. When the second buffer hits the base or other structures of the focus motor, the kinetic energy can be absorbed by the deformation of the second buffer, thereby reducing both the abnormal sound of the impact and the dust generated by the impact. In addition, since the focus bracket no longer directly hits the base, it can be ensured that the focus bracket and the base are not damaged, reducing the risk of failure of the focus bracket and the base, that is, ensuring the reliability of the focus bracket.

[0056] In one possible implementation, a portion of the first buffer is located inside the focus bracket, and a portion thereof may protrude relative to the first impact surface, and a gap is reserved between the portion of the first buffer located inside the focus bracket and the focus bracket.

[0057] And / or, a portion of the second buffer is located in the focusing bracket, and a portion thereof may protrude relative to the second impact surface, and a gap is reserved between the portion of the second buffer located in the focusing bracket and the focusing bracket.

[0058] In one possible implementation, the lens includes a lens barrel and a lens, the lens is installed in the lens barrel, and the lens barrel is installed in the installation space through a colloid; a boss is protruding from the outer surface of the lens barrel, and the boss is embedded in the colloid.

[0059] It's understood that the boss increases the connection area between the lens barrel and the focus bracket, significantly enhancing the secure connection between the lens and the focus bracket and preventing the lens from coming off the bracket. Furthermore, because the colloid encapsulates the boss, it can be embedded within the colloid. This allows the boss to roughly "hook" onto the colloid, further strengthening the secure connection between the lens and the focus bracket and preventing the lens from coming off the bracket.

[0060] In one possible implementation, a first glue dispensing groove and a second glue dispensing groove are provided on a side wall of the installation space, and the openings of the first glue dispensing groove and the second glue dispensing groove are respectively facing the two openings of the installation space;

[0061] The colloid includes a first colloid and a second colloid. The first colloid is arranged in the first dispensing tank, and the second colloid is arranged in the second dispensing tank.

[0062] It can be understood that, on the one hand, the interaction between the first and second colloids can significantly improve the connection strength between the lens and the focus bracket, preventing the lens from being dislodged from the focus bracket. On the other hand, because the openings of the first and second glue dispensing grooves face the two openings of the accommodating space, respectively, during the glue dispensing process, glue can be dispensed from one opening of the accommodating space to the first glue dispensing groove, and from the other opening of the accommodating space to the second glue dispensing groove. In this way, the glue can cover a large area of ​​the outer surface of the lens barrel and the wall surface of the accommodating space of the focus bracket.

[0063] In one possible implementation, an image sensor module includes a module circuit board, an image sensor, a filter holder, and a filter; the image sensor is disposed on and electrically connected to the module circuit board; the filter holder is fixed to the module circuit board, the filter holder and the image sensor are located on the same side of the module circuit board; the filter holder is provided with a light through hole; the filter is fixed to the filter holder, the filter can be located within the light through hole, and the filter is further disposed opposite the image sensor;

[0064] A portion of the module circuit board is located in the avoidance space, and / or a portion of the image sensor is located in the avoidance space, and / or a portion of the filter holder is located in the avoidance space, and / or a portion of the filter is located in the avoidance space.

[0065] In a second aspect, an embodiment of the present application further provides an electronic device comprising a device housing and any of the above-mentioned camera modules, wherein the camera module is disposed in the device housing. Since the camera module can be configured in a small size, the electronic device is also advantageously configured in a small size. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0067] FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0068] FIG2 is a partial cross-sectional schematic diagram of the electronic device shown in FIG1 taken along line AA in some embodiments;

[0069] FIG3 is a partially exploded schematic diagram of some embodiments of the camera module shown in FIG2 ;

[0070] FIG4 is a partially exploded schematic diagram of some embodiments of the focus module shown in FIG3 ;

[0071] FIG5 is a schematic diagram of a portion of the structure of some embodiments of the camera module shown in FIG2 ;

[0072] FIG6 is a partially exploded schematic diagram of some embodiments of the focus motor shown in FIG4 ;

[0073] FIG7 is an enlarged schematic diagram of some embodiments of the base shown in FIG6;

[0074] FIG8 is a schematic structural diagram of the base shown in FIG7 at another angle;

[0075] FIG9 is a partially exploded schematic diagram of some embodiments of the base shown in FIG8 ;

[0076] FIG10 is a schematic diagram of a portion of the structure of some embodiments of the focus motor shown in FIG4 ;

[0077] FIG11 is a partial cross-sectional schematic diagram of a portion of the focus motor shown in FIG10 taken along line BB in some embodiments;

[0078] FIG12 is a second schematic diagram of a portion of the structure of some embodiments of the focus motor shown in FIG4 ;

[0079] FIG13 is a third schematic diagram of a portion of the structure of some embodiments of the focus motor shown in FIG4 ;

[0080] FIG14 is a partial cross-sectional schematic diagram of a portion of the focus motor shown in FIG13 taken along CC in some embodiments;

[0081] FIG15 is a partial cross-sectional schematic diagram 1 of the focus motor shown in FIG4 taken along line DD in some embodiments;

[0082] FIG16 is an enlarged schematic diagram of some embodiments of the focusing bracket shown in FIG6 at another angle;

[0083] FIG17 is a fourth schematic diagram of a portion of the structure of some embodiments of the focus motor shown in FIG4 ;

[0084] FIG18 is a schematic structural diagram of a focus magnetic conductive member and a focus bracket in some embodiments of the focus motor shown in FIG4 ;

[0085] FIG19 is a second partial cross-sectional schematic diagram of the focus motor shown in FIG4 taken along line DD in some embodiments;

[0086] FIG20 is a partial cross-sectional schematic diagram of the focus motor shown in FIG4 taken along line EE in some embodiments;

[0087] FIG21 is a second schematic diagram of a partial structure of some embodiments of the camera module shown in FIG2 ;

[0088] FIG22 is a partial cross-sectional schematic diagram of the focus motor shown in FIG21 taken along FF in some embodiments;

[0089] FIG23 is a fifth schematic diagram of a portion of the structure of some embodiments of the focus motor shown in FIG4 ;

[0090] FIG24 is a sixth schematic diagram of a portion of the structure of some embodiments of the focus motor shown in FIG4 ;

[0091] FIG25 is a third partial cross-sectional schematic diagram of the focus motor shown in FIG4 taken along line DD in some embodiments;

[0092] FIG26 is a graph showing the magnetic difference and the stroke measured by the Hall sensor shown in FIG25 when the second magnetic member moves along the first direction X;

[0093] FIG27 is a graph showing the magnetic difference and travel measured by the TMR sensor shown in FIG25 when the magnetic grid moves along the first direction X;

[0094] FIG28 is a partial cross-sectional schematic diagram of the focus motor shown in FIG4 taken along line GG in some embodiments;

[0095] FIG29 is a partial cross-sectional view of some embodiments of the lens and focus bracket shown in FIG4 ;

[0096] FIG30 is a partial cross-sectional schematic diagram of a portion of the camera module shown in FIG5 taken along HH in some embodiments;

[0097] FIG31 is a partially exploded schematic diagram of some embodiments of the first reflection module shown in FIG3 ;

[0098] FIG. 32 is a partially exploded schematic diagram of some embodiments of the second reflection module shown in FIG. 3 . DETAILED DESCRIPTION

[0099] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0100] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "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. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after connection remains unchanged. "Sliding connection" means that the two are connected to each other and can slide relative to each other after connection. The directional terms mentioned in the embodiments of the present application, such as "top", "bottom", "up", "down", "inside", "outside", etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. "Multiple" means at least two. A and / or B include three schemes, specifically Scheme A, Scheme B and Scheme AB. Among them, "electrical connection" means that electrical signals can be conducted between each other. In addition, the two components are integrated into an integrated structure through an integrated molding process, which means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components together through further processing (such as bonding, welding, snap connection, screw connection).

[0101] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of the features.

[0102] In addition, in the embodiments of the present application, the mathematical concepts mentioned, such as parallel and perpendicular, are all in terms of the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and being approximately parallel or approximately perpendicular is acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0103] It is understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0104] FIG1 is a schematic structural diagram of an electronic device 1000 provided in an embodiment of the present application.

[0105] As shown in FIG1 , in some embodiments, electronic device 1000 may be a device with a camera function, such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, an in-vehicle device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, or a VR helmet. The electronic device 1000 in the embodiment shown in FIG1 is described using a mobile phone as an example.

[0106] FIG2 is a partial cross-sectional schematic diagram of the electronic device 1000 shown in FIG1 taken along line AA in some embodiments.

[0107] As shown in Figures 1 and 2, in some embodiments, 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. It should be noted that Figure 1 and the related figures 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 Figure 1 and the figures below. In addition, when the electronic device 1000 is a device of some other form, the electronic device 1000 may also not include the screen 300.

[0108] The device housing 200 may include a frame 201 and a back cover 202. The back cover 202 is fixed to the frame 201. For example, the back cover 202 may be fixed to the frame 201 by gluing, snapping, or the like. The back cover 202 may also be integrally formed with the frame 201, i.e., the back cover 202 and the frame 201 form a single, integral structure.

[0109] In some embodiments, the screen 300 can be located on the side of the frame 201 away from the back cover 202. In this case, the screen 300 and the back cover 202 can be located on either side 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 can be used to house components of the electronic device 1000, such as a battery, a receiver, or a microphone. The screen 300 can be flat or curved.

[0110] For example, the camera module 100 can be located inside the electronic device 1000. The back cover 202 has a light-transmitting portion 203. The shape of the light-transmitting portion 203 is not limited to the circular shape shown in FIG1 . Light from outside the electronic device 1000 can enter the interior of the electronic device 1000 through the light-transmitting portion 203. The camera module 100 can capture the light entering the interior of the electronic device 1000.

[0111] Figure 3 is a partially exploded schematic diagram of some embodiments of the camera module 100 shown in Figure 2. It will be understood that, for the sake of convenience of description in the following text, the height direction of the camera module 100 is defined as the Z-axis direction. The width direction of the camera module 100 is the Y-axis direction. The length direction of the camera module 100 is the X-axis direction. In other embodiments, the coordinate system setting of the camera module 100 can be flexibly set according to specific actual needs. In this embodiment, the X-axis direction is defined as the first direction. The Z-axis direction is the second direction. The Y-axis direction is the third direction. In other embodiments, the first direction, the second direction and the third direction can also be flexibly set according to specific actual needs, but it is necessary to ensure that the first direction, the second direction and the third direction are different from each other.

[0112] As shown in Figures 2 and 3, the camera module 100 includes a focus module 1, a first reflective module 2, and an image sensor module 3, arranged sequentially from the object side to the image side. The focus module 1 and the first reflective module 2 are arranged along a first direction X. The first reflective module 2 and the image sensor module 3 are arranged along a second direction Z.

[0113] It is understood that the focusing module 1 can be used for focusing. The first reflection module 2 can be used to change the optical axis of the camera module 100 from the first direction X to the second direction Z. The image sensor module 3 can be used to convert image information carried by ambient light into electrical signals.

[0114] It is understood that the focus module 1, the first reflective module 2, and the image sensor module 3 can form an integrated camera module 100. Thus, compared to a camera module 100 in which the focus module 1, the first reflective module 2, and the image sensor module 3 are separately provided, the camera module 100 of this embodiment is smaller in size, which is conducive to miniaturization of the camera module 100, thereby helping to save internal space of the electronic device 1000.

[0115] As shown in Figures 2 and 3, the camera module 100 further includes a second reflective module 4. The second reflective module 4 is located on the object side of the focus module 1. The second reflective module 4 and the focus module 1 can be arranged along the first direction X. The second reflective module 4 is used to change the optical axis of the camera module 100 from the second direction Z to the first direction X.

[0116] As shown in Figure 2, the light-entering side of the second reflective module 4 is positioned opposite the light-transmitting portion 203. Light passing through the light-transmitting portion 203 can enter the second reflective module 4, where it is reflected and then propagated to the focus module 1. After passing through the focus module 1, the light enters the first reflective module 2, where it is reflected and then propagated to the image sensor module 3.

[0117] In other embodiments, the camera module 100 may also not include the second reflective module 4. The light-entering side of the focus module 1 is positioned opposite the light-transmitting portion 203. In this case, light passing through the light-transmitting portion 203 can directly enter the focus module 1. After passing through the focus module 1, the light enters the first reflective module 2, is reflected by the first reflective module 2, and then travels to the image sensor module 3.

[0118] FIG. 4 is a partially exploded schematic diagram of some embodiments of the focusing module 1 shown in FIG. 3 .

[0119] As shown in Figures 2 and 4, the focus module 1 includes a focus motor 10 and a lens 20. The lens 20 is mounted on the focus motor 10. The focus motor 10 can control the lens 20 to move along a first direction X to achieve auto focus (AF).

[0120] As shown in FIG4 , the focus motor 10 includes a left portion 101, a right portion 102, a top portion 103, and a bottom portion 104. The left portion 101 and the right portion 102 are arranged along a first direction X. The top portion 103 and the bottom portion 104 are arranged along a second direction Z. Furthermore, the right portion 102 is positioned closer to the first reflective module 2 than the left portion 101.

[0121] Exemplarily, the focus motor 10 has an installation space 105. The installation space 105 extends from the left side 101 of the focus motor 10 to the right side 102 of the focus motor 10. The installation space 105 is used to install the lens 20.

[0122] For example, the bottom portion 104 of the focus motor 10 is recessed toward the top portion 103 to form an escape space 106 . The escape space 106 extends to the right side 102 of the focus motor 10 .

[0123] FIG5 is a schematic diagram of a portion of the structure of some embodiments of the camera module 100 shown in FIG2 .

[0124] 4 and 5 , the first reflection module 2 is fixed to the right side 102 of the focus motor 10 . The image sensor module 3 is located at the bottom side of the focus motor 10 , and a portion of the image sensor module 3 is located in the avoidance space 106 .

[0125] It can be understood that this embodiment first sets an avoidance space 106 at the bottom 104 of the focus motor 10, and the avoidance space 106 also extends to the right side 102 of the focus motor 10, and then positions the image sensor module 3 at the bottom 104 of the focus motor 10, and partially within the avoidance space 106. Therefore, on the one hand, in the first direction X, the image sensor module 3 and the focus motor 10 have an overlapping area, thereby reducing the size of the camera module 100 in the first direction X, which is beneficial to the miniaturization of the camera module 100. On the other hand, in the second direction Z, the image sensor module 3 and the focus motor 10 have an overlapping area, thereby reducing the size of the camera module 100 in the second direction Z, which is beneficial to the thinning of the camera module 100.

[0126] It is understandable that in a traditional camera module, the arrangement of the various components of the camera module is already relatively compact. Therefore, in the architecture of a traditional camera module, it is impossible to leave the avoidance space 106 proposed in this application. In this embodiment, a new architecture of the focus motor 10 is proposed, thereby forming the avoidance space 106 at the bottom 104 of the focus motor 10. Of course, the method of forming the avoidance space 106 at the bottom 104 of the focus motor 10 is not specifically limited in this application, that is, it is not limited to the specific embodiment proposed below.

[0127] FIG. 6 is a partially exploded schematic diagram of some embodiments of the focus motor 10 shown in FIG. 4 .

[0128] As shown in FIG6 , the focus motor 10 includes a base 11 , a focus bracket 12 , a driving mechanism 13 , a sliding shaft 14 and a housing 15 .

[0129] Illustratively, the number of the sliding shafts 14 in this embodiment is two, including a first sliding shaft 14 a and a second sliding shaft 14 b .

[0130] Exemplarily, the driving mechanism 13 may include a first coil 131 , a first magnetic member 132 , a second coil 133 , a second magnetic member 134 and a first circuit board 135 .

[0131] Fig. 7 is an enlarged schematic diagram of some embodiments of the base 11 shown in Fig. 6. Fig. 8 is a schematic structural diagram of the base 11 shown in Fig. 7 at another angle.

[0132] As shown in Figures 7 and 8, the base 11 includes a top plate 111 and side frames 112. The side frames 112 are connected to the periphery of the top plate 111. In this embodiment, the side frames 112 and the top plate 111 can be formed into an integrally formed structural member by injection molding or other methods. In other embodiments, the side frames 112 can also be connected to the periphery of the top plate 111 by other methods (such as welding, bonding, or fastening).

[0133] Exemplarily, the side frame 112 includes a first side portion 1121 and a second side portion 1122 that are oppositely disposed, and a third side portion 1123 and a fourth side portion 1124 that are oppositely disposed.

[0134] Exemplarily, the base 11 may have an activity space 113 , that is, the top plate 111 and the side frame 112 may enclose the activity space 113 .

[0135] As shown in Figures 7 and 8, the base 11 is provided with a first light-transmitting hole 114a and a second light-transmitting hole 114b, which are arranged opposite each other. The first light-transmitting hole 114a and the second light-transmitting hole 114b both connect the movable space 113 with the exterior of the base 11. For example, the first light-transmitting hole 114a is located on the first side 1121, and the second light-transmitting hole 114b is located on the second side 1122.

[0136] As shown in Figures 7 and 8, the base 11 further defines a first through hole 115a and a second through hole 115b, which are arranged opposite each other. The first through hole 115a and the second through hole 115b both connect the movable space 113 with the exterior of the base 11. For example, the first through hole 115a is located on the third side 1123, and the second through hole 115b is located on the fourth side 1124.

[0137] As shown in Figures 7 and 8, the base 11 further includes a first slide shaft hole 116a and a second slide shaft hole 116b, as well as a third slide shaft hole 116c and a fourth slide shaft hole 116d, which are arranged opposite to each other. The first slide shaft hole 116a, the second slide shaft hole 116b, the third slide shaft hole 116c, and the fourth slide shaft hole 116d all connect the movable space 113 with the exterior of the base 11.

[0138] Exemplarily, the first sliding shaft hole 116a and the third sliding shaft hole 116c are spaced apart and located on the top of the base 11. For example, a portion of the first sliding shaft hole 116a may be located at the end of the first side portion 1121 near the top plate 111, and a portion may be located on the top plate 111. A portion of the third sliding shaft hole 116c may be located at the end of the first side portion 1121 near the top plate 111, and a portion may be located on the top plate 111. The first sliding shaft hole 116a and the third sliding shaft hole 116c may be located on both sides of the first light-transmitting hole 114a.

[0139] Exemplarily, the second sliding shaft hole 116b and the fourth sliding shaft hole 116d are spaced apart and located on the top of the base 11. For example, a portion of the second sliding shaft hole 116b may be located at the end of the second side portion 1122 near the top plate 111, and a portion may be located on the top plate 111. A portion of the fourth sliding shaft hole 116d may be located at the end of the second side portion 1122 near the top plate 111, and a portion may be located on the top plate 111. The fourth sliding shaft hole 116d may be located on both sides of the second light-transmitting hole 114b.

[0140] FIG. 9 is a partially exploded schematic diagram of some embodiments of the base 11 shown in FIG. 8 .

[0141] As shown in Figure 9, the base 11 includes an insulating body 11a and a metal insert 11b. The insulating body 11a can be made of plastic. The metal insert 11b can be made of stainless steel. The metal insert 11b is embedded within the insulating body 11a. This improves the overall strength of the insulating body 11a. The insulating body 11a and the metal insert 11b together provide a strong structural strength for the base 11.

[0142] For example, the metal insert 11 b may be formed into an integrally formed structural component with the insulating body 11 a by insert-molding or the like.

[0143] It can be understood that the relevant hole structures set on the base 11 (such as the first light-transmitting hole 114a, the second light-transmitting hole 114b, the first through hole 115a and the second through hole 115b in Figure 8) can be set on the insulating body 11a, or can be set on the insulating body 11a and the metal insert 11b at the same time.

[0144] Fig. 10 is a partial structural schematic diagram 1 of some embodiments of the focus motor 10 shown in Fig. 4. Fig. 11 is a partial cross-sectional schematic diagram of some embodiments of the focus motor 10 shown in Fig. 10 taken along line BB.

[0145] As shown in Figures 10 and 11 , the first end 141a of the first slide shaft 14a is fixed in the first slide shaft hole 116a. The second end 142a of the first slide shaft 14a is fixed in the second slide shaft hole 116b. The middle portion 143a of the first slide shaft 14a is located in the movable space 113 of the base 11.

[0146] In one embodiment, a portion of the metal insert 11b of the base 11 extends into the first slide shaft hole 116a. The first end 141a of the first slide shaft 14a is fixedly connected to the metal insert 11b through a welding process. The second end 142a of the first slide shaft 14a can be directly fixed in the second slide shaft hole 116b by adhesive. It can be understood that compared to the solution of fixing the two ends of the first slide shaft 14a to the base 11 only by bonding, the connection method of the first slide shaft 14a and the base 11 in this embodiment is more stable and more secure. In this way, the first slide shaft 14a is not easy to fall off from the base 11, ensuring the connection reliability of the first slide shaft 14a.

[0147] In other embodiments, the first end 141a of the first sliding shaft 14a may also be directly fixed in the first sliding shaft hole 116a by adhesive.

[0148] In other embodiments, the second end 142a of the first sliding shaft 14a can also be fixedly connected to the metal insert 11b extending into the second sliding shaft hole 116b through a welding process. It is understood that when a larger number of sliding shafts 14 are included, the other sliding shafts 14 can also adopt this connection method. In this case, at least one end of the sliding shaft 14 is welded to the metal insert 11b in the base 11.

[0149] It is understood that one end of the second slide shaft 14b is fixed in the third slide shaft hole 116c, and the other end is fixed in the fourth slide shaft hole 116d. The connection between the second slide shaft 14b and the base 11 can be referred to the connection between the first slide shaft 14a and the base 11, and the details are not repeated here.

[0150] FIG. 12 is a second schematic diagram of a partial structure of some embodiments of the focus motor 10 shown in FIG. 4 .

[0151] As shown in Figure 12, the first circuit board 135 includes a first plate portion 1351, a second plate portion 1352, and a third plate portion 1353, which are connected in sequence. The first plate portion 1351 and the third plate portion 1353 are both bent and connected to the second plate portion 1352. The first plate portion 1351 and the third plate portion 1353 are arranged opposite each other. In this case, the first circuit board 135 is generally shaped like a "Π".

[0152] For example, the first plate portion 1351 and the second plate portion 1352 may be arranged at an angle. For example, the first plate portion 1351 and the second plate portion 1352 may be arranged perpendicular to each other or substantially perpendicular to each other.

[0153] For example, the second plate portion 1352 and the third plate portion 1353 may be arranged at an angle. For example, the second plate portion 1352 and the third plate portion 1353 may be arranged perpendicular to each other or substantially perpendicular to each other.

[0154] 12 , the first coil 131 is fixed to a side of the first plate portion 1351 facing the third plate portion 1353 and is electrically connected to the first plate portion 1351. The second coil 133 is fixed to a side of the third plate portion 1353 facing the first plate portion 1351 and is electrically connected to the third plate portion 1353.

[0155] Fig. 13 is a third schematic diagram of a portion of the structure of some embodiments of the focus motor 10 shown in Fig. 4. Fig. 14 is a schematic diagram of a portion of the focus motor 10 shown in Fig. 13 taken along CC in some embodiments.

[0156] As shown in Figures 13 and 14 , the first circuit board 135 is fixed on the base 11. At this time, the first coil 131 and the second coil 133 are fixed on the base 11 with the first circuit board 135 spaced apart.

[0157] For example, the first board portion 1351 of the first circuit board 135 is fixed to the side of the third side 1123 of the base 11, away from the fourth side 1124. The second board portion 1352 of the first circuit board 135 is fixed to the side of the top plate 111 of the base 11, facing away from the active space 113. The third board portion 1353 of the first circuit board 135 is fixed to the side of the fourth side 1124 of the base 11, away from the third side 1123. Furthermore, the first coil 131 is positioned within the first through hole 115a of the base 11. The second coil 133 is positioned within the second through hole 115b of the base 11. This allows for a compact arrangement of the first coil 131, the second coil 133, and the base 11, facilitating improved space utilization.

[0158] For example, each plate portion of the first circuit board 135 may be fixed to each plate member of the base 11 by adhesive.

[0159] For example, the plate portion of the first circuit board 135 and the plate member of the base 11 may also be provided with positioning blocks and positioning holes, respectively, wherein the positioning blocks are inserted into the positioning holes. In this way, the cooperation between the positioning blocks and the positioning holes can further improve the connection firmness and stability between the first circuit board 135 and the base 11.

[0160] In other embodiments, when the base 11 is not provided with the first through hole 115a and the second through hole 115b, the first circuit board 135 can be fixed to the inner side of the base 11. For example, the first plate portion 1351 of the first circuit board 135 can be fixed to the surface of the third side portion 1123 of the base 11 facing the fourth side portion 1124. The second plate portion 1352 of the first circuit board 135 can be fixed to the side of the top plate 111 of the base 11 facing the activity space 113. The third plate portion 1353 of the first circuit board 135 can be fixed to the side of the fourth side portion 1124 of the base 11 facing the third side portion 1123.

[0161] In other embodiments, the first coil 131 and the second coil 133 may also be directly fixed to the base 11. For example, the first coil 131 may be fixed to a surface of the third side portion 1123 of the base 11 that faces the fourth side portion 1124. The second coil 133 may be fixed to a side of the fourth side portion 1124 of the base 11 that faces the third side portion 1123.

[0162] FIG. 15 is a first partial cross-sectional schematic diagram of the focus motor 10 shown in FIG. 4 taken along line DD in some embodiments.

[0163] As shown in FIG15 , the focus motor 10 further includes a housing 15. For example, the housing 15 may be made of metal material, so that the structural strength of the housing 15 is relatively high.

[0164] Exemplarily, the housing 15 includes a first side panel 151, a bottom panel 152, and a second side panel 153 connected in sequence. The first side panel 151 is disposed opposite to the second side panel 153. At this time, the housing 15 is generally in the shape of a Chinese character "∪".

[0165] For example, the first side plate 151 and the bottom plate 152 may be arranged at an angle. For example, the first side plate 151 and the bottom plate 152 may be arranged perpendicular to each other or substantially perpendicular to each other.

[0166] For example, the bottom plate 152 and the second side plate 153 may be arranged at an angle. For example, the bottom plate 152 and the second side plate 153 may be arranged perpendicular to each other or substantially perpendicular to each other.

[0167] As shown in FIG15 , the base 11 is fixed to the inner side of the housing 15. The first side plate 151 of the housing 15 can be arranged opposite to the third side portion 1123 of the base 11. The second side plate 153 of the housing 15 can be arranged opposite to the fourth side portion 1124 of the base 11. The bottom plate 152 of the housing 15 can be fixed to the bottom of the base 11. The bottom plate 152 and the base 11 can enclose an activity space 113. In addition, the first sliding shaft 14a and the second sliding shaft 14b are fixed to the end of the base (11) away from the bottom plate (152).

[0168] As shown in Figure 15, the first side plate 151 is fixed to the side of the first plate portion 1351 of the first circuit board 135 away from the first coil 131, and the second side plate 153 is fixed to the side of the third plate portion 1353 of the first circuit board 135 away from the second coil 133.

[0169] It is understood that the first side panel 151 of the housing 15 can be used to increase the structural strength of the first plate portion 1351 of the first circuit board 135, thereby reducing the risk of deformation of the first plate portion 1351 of the first circuit board 135. The second side panel 153 of the housing 15 can be used to increase the structural strength of the third plate portion 1353 of the first circuit board 135, thereby reducing the risk of deformation of the third plate portion 1353 of the first circuit board 135.

[0170] In other embodiments, the focus motor 10 may not include the housing 15. In this case, a reinforcing member (not shown) may be secured to a surface of the first plate portion 1351 of the first circuit board 135, away from the third plate portion 1353, to increase the structural strength of the first plate portion 1351 of the first circuit board 135 and reduce the risk of deformation of the first plate portion 1351 of the first circuit board 135. Furthermore, a reinforcing member (not shown) may be secured to a surface of the third plate portion 1353 of the first circuit board 135, away from the first plate portion 1351, to increase the structural strength of the third plate portion 1353 of the first circuit board 135 and reduce the risk of deformation of the third plate portion 1353 of the first circuit board 135.

[0171] FIG. 16 is an enlarged schematic diagram of the focusing bracket 12 shown in FIG. 6 at another angle in some embodiments.

[0172] As shown in FIG. 16 , in some embodiments, the focus bracket 12 can be made of an insulating material. For example, the focus bracket 12 can be made of plastic. Alternatively, the focus bracket 12 can be constructed by embedding a metal component within an insulating component. For example, the insulating component and the metal component can be formed into a single integral structure through insert molding or other methods.

[0173] In some embodiments, the focus bracket 12 can be generally frame-shaped and can include a first side 121a, a second side 121b, a third side 121c, and a fourth side 121d. The first side 121a and the second side 121b of the focus bracket 12 are disposed opposite each other. The third side 121c and the fourth side 121d of the focus bracket 12 are disposed opposite each other. The third side 121c and the fourth side 121d of the focus bracket 12 are connected between the first side 121a and the second side 121b of the focus bracket 12.

[0174] Exemplarily, the focus bracket 12 encloses a receiving space 122a. The receiving space 122a is located between the first side 121a and the second side 121b, and between the third side 121c and the fourth side 121d. That is, the first side 121a, the second side 121b, the third side 121c, and the fourth side 121d surround the receiving space 122a. The receiving space 122a extends through the focus bracket 12 in the first direction X.

[0175] Exemplarily, the central axis of the focus bracket 12 is parallel to the optical axis of the lens 20 (see FIG. 4 ).

[0176] As shown in Fig. 16, illustratively, the focus bracket 12 is provided with a first mounting groove 123 and a second mounting groove 124. The first mounting groove 123 and the second mounting groove 124 are located on both sides of the accommodating space 122a and are arranged to face away from the accommodating space 122a.

[0177] Exemplarily, the first mounting groove 123 is provided on the third side portion 121c, and the second mounting groove 124 is provided on the fourth side portion 121d.

[0178] As shown in FIG16 , for example, the focus bracket 12 is provided with a first slide groove 125 and a second slide groove 126 spaced apart from each other. The first slide groove 125 and the second slide groove 126 are both disposed facing away from the accommodating space 122 a. The extending direction of the first slide groove 125 and the second slide groove 126 may be parallel to the first direction X.

[0179] Exemplarily, the first slide groove 125 and the second slide groove 126 are both provided on the first edge 121a of the focus bracket 12. The first slide groove 125 is provided close to the first installation groove 123 relative to the second installation groove 124. The second slide groove 126 is provided close to the second installation groove 124 relative to the first installation groove 123.

[0180] FIG17 is a fourth schematic diagram of a partial structure of some embodiments of the focus motor 10 shown in FIG4 .

[0181] As shown in Figures 16 and 17, in some embodiments, the first magnetic member 132 can be installed in the first mounting slot 123 of the focus bracket 12 to be fixed to the third side 121c of the focus bracket 12. The second magnetic member 134 can be installed in the second mounting slot 124 of the focus bracket 12 to be fixed to the fourth side 121d of the focus bracket 12. The first magnetic member 132 and the second magnetic member 134 are located on both sides of the accommodating space 122a, that is, on both sides of the lens 20.

[0182] FIG. 18 is a schematic structural diagram of the focus magnetic conductive member 16 and the focus bracket 12 in some embodiments of the focus motor 10 shown in FIG. 4 .

[0183] As shown in Figures 17 and 18, the focus motor 10 further includes a focus magnetic conductive member 16. The focus magnetic conductive member 16 is made of a magnetic conductive material, such as silicon steel sheets and alloys formed by various iron products and rare earth elements.

[0184] Exemplarily, the focusing magnetic conductive member 16 includes a first magnetic conductive member 161, a second magnetic conductive member 162, and a third magnetic conductive member 163. The third magnetic conductive member 163 is connected between the first magnetic conductive member 161 and the second magnetic conductive member 162. It is understandable that the first magnetic conductive member 161, the second magnetic conductive member 162, and the third magnetic conductive member 163 of the focusing magnetic conductive member 16 can be an integrally formed structure. Exemplarily, the first magnetic conductive member 161, the second magnetic conductive member 162, and the third magnetic conductive member 163 of the focusing magnetic conductive member 16 can be formed by bending or stamping an integral metal part. In this way, the processing steps of the first magnetic conductive member 161, the second magnetic conductive member 162, and the third magnetic conductive member 163 of the focusing magnetic conductive member 16 can be reduced, thereby reducing the processing cost investment. In other embodiments, the first magnetic conductive member 161, the second magnetic conductive member 162, and the third magnetic conductive member 163 of the focusing magnetic conductive member 16 can also be connected into a whole by welding, bonding, snapping, etc. This application does not specifically limit this.

[0185] For example, the first magnetic conductive member 161 and the third magnetic conductive member 163 may be arranged at an angle. For example, the first magnetic conductive member 161 and the third magnetic conductive member 163 may be arranged perpendicular to each other or substantially perpendicular to each other.

[0186] For example, the second magnetic conductive member 162 and the third magnetic conductive member 163 may be arranged at an angle. For example, the second magnetic conductive member 162 and the third magnetic conductive member 163 may be arranged perpendicular to each other or approximately perpendicular to each other.

[0187] In other embodiments, the focusing magnetic conductive component 16 may not include the second magnetic conductive component 162 and / or the third magnetic conductive component 163 .

[0188] In this embodiment, the focus magnetic conductive member 16 is embedded in the focus bracket 12. The focus magnetic conductive member 16 can improve the overall strength of the focus bracket 12. For example, the focus magnetic conductive member 16 can be formed into an integral structure with the focus bracket 12 by insert molding or other methods.

[0189] For example, the first magnetic conductive member 161 of the focus magnetic conductive member 16 can be embedded in the third side 121c of the focus bracket 12 and arranged opposite the first magnetic member 132. In other embodiments, the main portion of the first magnetic conductive member 161 can be located between the first magnetic member 132 and the bottom wall of the first mounting groove 123. The first magnetic conductive member 161 can be fixed to the bottom wall of the first mounting groove 123 by bonding or other means, and the first magnetic member 132 can be fixed to the first magnetic conductive member 161 by bonding or other means.

[0190] It is understood that the first magnetic conductive member 161 can be used to enhance the magnetic field directivity of the first magnetic member 132. In addition, the first magnetic conductive member 161 can generate an attractive force with the first magnetic member 132, thereby preventing the first magnetic member 132 from separating from the focus bracket 12.

[0191] For example, the second magnetic conductive member 162 of the focus magnetic conductive member 16 can be embedded in the fourth side 121d of the focus bracket 12 and arranged opposite the second magnetic member 134. In other embodiments, the main portion of the second magnetic conductive member 162 can be located between the second magnetic member 134 and the bottom wall of the second mounting slot 124. The second magnetic conductive member 162 can be fixed to the bottom wall of the second mounting slot 124 by bonding or other means, and the second magnetic member 134 can be fixed to the second magnetic conductive member 162 by bonding or other means.

[0192] It is understood that the second magnetic conductive member 162 can be used to enhance the magnetic field directivity of the second magnetic member 134. In addition, the second magnetic conductive member 162 can generate an attractive force with the second magnetic member 134, thereby preventing the second magnetic member 134 from separating from the focus bracket 12.

[0193] Exemplarily, the third magnetic conductive member 163 of the focusing magnetic conductive member 16 may be embedded in the first side portion 121 a of the focusing bracket 12 .

[0194] FIG. 19 is a second partial cross-sectional schematic diagram of the focus motor 10 shown in FIG. 4 taken along line DD in some embodiments.

[0195] As shown in FIG19 , in some embodiments, the focusing bracket 12 is located within the movable space 113 of the base 11. The first magnetic member 132 is disposed opposite the first coil 131. The second magnetic member 134 is disposed opposite the second coil 133. Furthermore, the first slide shaft 14a is located within the first slide groove 125 of the focusing bracket 12. The groove wall of the first slide groove 125 can slide relative to the first slide shaft 14a. The second slide shaft 14b is located within the second slide groove 126 of the focusing bracket 12. The groove wall of the second slide groove 126 can slide relative to the second slide shaft 14b.

[0196] It can be understood that the focusing bracket 12 is slidably connected to the base 11 via the first sliding shaft 14a and the second sliding shaft 14b, and the relative sliding direction thereof is parallel to the guiding direction of the first sliding shaft 14a and the second sliding shaft 14b, that is, the first direction X.

[0197] It is understood that when the focus bracket 12 is slidably connected to the base 11 via the first and second sliding shafts 14a, 14b, the focus bracket 12 and the first and second sliding shafts 14a, 14b maintain linear contact during relative motion. This reduces the risk of dents caused by excessive impact pressure and improves reliability. In some embodiments, the width of the contact area between the focus bracket 12 and the first and second sliding shafts 14a, 14b can be increased to further enhance structural reliability.

[0198] As shown in Figure 19, the first coil 131 is fixed to the base 11, the first magnetic member 132 is fixed to the focus bracket 12, and the first coil 131 is arranged facing the first magnetic member 132, and is used to drive the focus bracket 12 to move relative to the base 11 along the first direction X. When the focus bracket 12 moves relative to the base 11 along the first direction X, the focus bracket 12 can drive the lens 20 mounted thereon (see Figure 4) to move along the first direction X. At this time, the focus motor 10 can achieve automatic focusing of the camera module 100. The first coil 131 is arranged facing the first magnetic member 132, which means that the winding plane of the first coil 131 faces the first magnetic member 132.

[0199] In this embodiment, during the movement of the focusing bracket 12 relative to the base 11, the movement direction of the focusing bracket 12 is perpendicular to the magnetic gap between the first magnetic part 132 and the first coil 131. The above-mentioned magnetic gap is not affected by the movement of the focusing bracket 12. Therefore, the problem of rapid decrease in driving force due to increase in magnetic gap can be avoided, thereby ensuring that the focusing driving force of the focusing motor 10 is large and the driving force is relatively stable, which is conducive to the large stroke design of the focusing function of the focusing motor 10.

[0200] For example, the stroke of the focus motor 10 of this embodiment may be greater than 1 mm.

[0201] As shown in Figure 17, the first magnetic member 132 can have two polarity directions in opposite directions, and the polarity direction of the first magnetic member 132 is arranged perpendicular to the winding plane of the first coil 131. Among them, the first coil 131 in the two sections of the first coil 131 can be respectively arranged corresponding to the two polarity directions of the first magnetic member 132, and the currents in the first coil 131 in the two sections flow in opposite directions. It can be understood that the polarity direction can be the direction from the North Pole (N) to the South Pole (S), or the direction from the South Pole (S) to the North Pole (N). At this time, the side of the first magnetic member 132 facing the first coil 131 includes the North Pole (N) and the South Pole (S), and the side of the first magnetic member 132 facing away from the first coil 131 correspondingly includes the South Pole (S) and the North Pole (N).

[0202] Exemplarily, the first magnetic member 132 may include one or more magnets, and the implementation structure of the first magnetic member 132 may be various. For example, in some embodiments, the first magnetic member 132 may adopt a dual magnet solution, for example, consisting of two magnets, the two magnets are arranged in the first direction X, and the polarity directions are opposite. In other embodiments, the first magnetic member 132 is a Halbach magnet array. In other embodiments, the first magnetic member 132 may adopt a single magnet solution, for example, consisting of a magnet, the magnet including two parts with opposite polarity directions. The magnet may be manufactured using a bipolar magnetization process.

[0203] As shown in Figure 19, in some embodiments, the fit between the first and second sliding shafts 14a, 14b, and the focus bracket 12 includes both a tight fit and a loose fit to reduce assembly difficulty. For example, one of the first and second sliding grooves 125, 126 of the focus bracket 12 is a V-shaped groove, and the other is a U-shaped or L-shaped groove. Exemplarily, the first sliding groove 125 is a V-shaped groove. When the V-shaped groove mates with the first sliding shaft 14a, the side walls of the V-shaped groove contact the first sliding shaft 14a, achieving a tight fit. The second sliding groove 126 is a U-shaped groove. When the U-shaped groove mates with the second sliding shaft 14b, the bottom walls of the U-shaped groove contact the second sliding shaft 14b, achieving a loose fit and serving as a mating surface to absorb tolerances. In other embodiments, the tight and loose fit designs between the multiple sliding shafts and the focus bracket 12 may be implemented in other ways, and this is not strictly limited in the present embodiment.

[0204] FIG. 20 is a partial cross-sectional schematic diagram of the focus motor 10 shown in FIG. 4 taken along line EE in some embodiments.

[0205] As shown in Figure 20, in this embodiment, the first sliding shaft 14a and the second sliding shaft 14b are fixed to the top plate 111 of the base 11. This allows space to be freed up at the bottom of the base 11. At this time, the second side 121b of the focusing bracket 12 can be recessed toward the accommodating space 122a to form a first escape space 122. The first escape space 122 extends to the right side of the focusing bracket 12. In addition, a portion of the bottom of the base 11 can be recessed toward the top plate 111 to form a second escape space 117. The second escape space 117 is connected to the first escape space 122.

[0206] At this time, a portion of the bottom plate 152 of the housing 15 sinks toward the first escape space 122 and the second escape space 117 to be located within the first escape space 122 and the second escape space 117. At this time, the side of the bottom plate 152 of the housing 15 facing away from the focus bracket 12 forms the escape space 106 (i.e., the escape space 106 for the focus motor 10).

[0207] Exemplarily, the bottom plate 152 of the housing 15 is provided with a communication hole 1522 . The avoidance space 106 is connected to the activity space 113 of the base 11 through the communication hole 1522 .

[0208] FIG21 is a second schematic diagram of a partial structure of some embodiments of the camera module 100 shown in FIG2 .

[0209] As shown in Figure 21, the image sensor module 3 is fixed to the bottom plate 152 of the housing 15. Furthermore, a portion of the image sensor module 3 is located within the clearance space 106 of the housing 15. This allows the image sensor module 3 and the focus motor 10 to overlap in a first direction X, thereby reducing the size of the camera module 100 in the first direction X and facilitating a compact design of the camera module 100. Furthermore, the image sensor module 3 and the focus motor 10 also overlap in a second direction Z, thereby reducing the size of the camera module 100 in the second direction Z and facilitating a thinner design of the camera module 100.

[0210] FIG. 22 is a partial cross-sectional schematic diagram of the focus motor 10 shown in FIG. 21 taken along line FF in some embodiments.

[0211] As shown in Figure 22, because the avoidance space 106 can be connected to the active space 113 of the base 11 through the connecting hole 1522, a portion of the image sensor module 3 can be exposed relative to the active space 113 of the base 11 through the avoidance space 106 and the connecting hole 1522. In this case, when the first reflective module 2 is arranged on the image side of the focus module 1, the front end 2a of the first reflective module 2 can extend into the active space 113 of the base 11 through the second light-transmitting hole 114b of the base 11 and be fixed to the image sensor module 3. This makes the arrangement of the first reflective module 2 and the focus module 1 more compact, which helps improve space utilization.

[0212] As shown in FIG22 , the bottom plate 152 of the housing 15 is provided with an ink layer on the surface facing the focus bracket 12. The ink layer prevents optical stray light from being reflected onto the image sensor module 3. In other embodiments, an ink layer may also be provided in areas of the base 11 or the focus bracket 12 where optical stray light could be reflected onto the image sensor module 3.

[0213] It will be understood that the above description, in conjunction with Figures 6 to 20, specifically introduces a new architecture of the focus motor 10, thereby forming an escape space 106 at the bottom 104 of the focus motor 10. For example, in the structure of the focus motor 10 of Figures 6 to 20, the first side portion 1121 of the base 11 can form the left side portion 101 of the focus motor 10. The second side portion 1122 of the base 11 can form the right side portion 102 of the focus motor 10. The top plate 111 of the base 11 can form the top portion 103 of the focus motor 10. The bottom plate 152 of the housing 15 can form the bottom 104 of the focus motor 10. Furthermore, the space within the first light-transmitting hole 114a of the base 11, the space between the first light-transmitting hole 114a and the accommodating space 122a, the accommodating space 122a, the space between the accommodating space 122a and the second light-transmitting hole 114b, and the space within the second light-transmitting hole 114b can constitute the installation space 105 for the focus motor 10. In other embodiments, when the focus motor 10 has other structures, the left side 101, right side 102, top 103, bottom 104, and installation space 105 of the focus motor 10 can be formed by other components of the focus motor 10. This application does not limit this in detail.

[0214] Several embodiments of the structure of the focus motor 10 are described in detail above with reference to the relevant drawings. Several further embodiments of the focus motor 10 will be described in detail below with reference to the relevant drawings.

[0215] As shown in FIG19 , the first slide shaft 14 a and the second slide shaft 14 b can both be made of a magnetically conductive material. For example, silicon steel and alloys formed by various iron products and rare earth elements can be used. For example, the first slide shaft 14 a and the second slide shaft 14 b can both be made of a paramagnetic material.

[0216] The first sliding shaft 14a is disposed close to the first magnetic member 132 relative to the second magnetic member 134, and a first magnetic attraction force can be generated between the first sliding shaft 14a and the first magnetic member 132. The first magnetic attraction force has a first component in the second direction Z.

[0217] The second sliding shaft 14b is disposed close to the second magnetic member 134 relative to the first magnetic member 132. A second magnetic attraction force is generated between the second sliding shaft 14b and the second magnetic member 134. The second magnetic attraction force has a second component in the second direction Z.

[0218] In this embodiment, the first force component and the second force component can be used to eliminate the gravitational posture difference of the mover when the camera module 100 is in various postures, so as to adsorb the focus bracket 12 on the first sliding shaft 14a and the second sliding shaft 14b, so that the focus bracket 12 has an area close to the base 11, thereby ensuring that the focus bracket 12 is not easily detached from the first sliding shaft 14a and the second sliding shaft 14b, and the focus bracket 12 can maintain contact with the first sliding shaft 14a and the second sliding shaft 14b to achieve pre-tightening. It can be understood that the mover includes the focus bracket 12 and related components provided on the focus bracket 12.

[0219] As shown in Figure 19, the focus motor 10 further includes a first magnetic member 17a and a second magnetic member 17b. The first magnetic member 17a and the second magnetic member 17b can be made of a material that can generate magnetic attraction with a magnet or other magnetic component, such as a ferromagnetic material.

[0220] The first magnetic member 17a is located on a side of the first magnetic member 132 close to the first sliding shaft 14a and is spaced apart from the first sliding shaft 14a. The first magnetic member 17a is arranged close to the first magnetic member 132, and a third magnetic attraction force can be generated between the first magnetic member 17a and the first magnetic member 132. The third magnetic attraction force can be used to further eliminate the gravitational posture difference of the mover when the camera module 100 is in various postures, so as to adsorb the focus bracket 12 on the first sliding shaft 14a and the second sliding shaft 14b, so that the focus bracket 12 has an area close to the base 11, thereby further ensuring that the focus bracket 12 is not easy to fall off from the first sliding shaft 14a and the second sliding shaft 14b, and the focus bracket 12 can maintain contact with the first sliding shaft 14a and the second sliding shaft 14b, thereby further achieving pre-tightening.

[0221] The second magnetic member 17b is located on the side of the second magnetic member 134 close to the second sliding shaft 14b, and is spaced apart from the second sliding shaft 14b, and the second magnetic member 17b is arranged close to the second magnetic member 134. A fourth magnetic attraction force is generated between the second magnetic member 17b and the second magnetic member 134. The fourth magnetic attraction force can be used to further eliminate the gravity posture difference of the mover when the camera module 100 is in various postures, so as to further adsorb the focus bracket 12 on the first sliding shaft 14a and the second sliding shaft 14b, so that the focus bracket 12 has an area close to the base 11, thereby further ensuring that the focus bracket 12 is not easy to fall off from the first sliding shaft 14a and the second sliding shaft 14b, and the focus bracket 12 can maintain contact with the first sliding shaft 14a and the second sliding shaft 14b, thereby further achieving pre-tightening.

[0222] It is understood that the size and shape of the first magnetic member 17a and the second magnetic member 17b of this embodiment can be flexibly set as needed. Therefore, the magnetic attraction force between the first magnetic member 17a and the first magnetic member 132, and the magnetic attraction force between the second magnetic member 17b and the second magnetic member 134 can be flexibly set as needed. In this way, by adjusting the size of the magnetic attraction force between the first magnetic member 17a and the first magnetic member 132, and the size of the magnetic attraction force between the second magnetic member 17b and the second magnetic member 134, the focus bracket 12 can be further attracted to the first sliding shaft 14a and the second sliding shaft 14b, and the focus bracket 12 is not easily detached from the first sliding shaft 14a and the second sliding shaft 14b.

[0223] Exemplarily, the sum of the magnetic attraction between the first sliding shaft 14a and the first magnetic part 132, the magnetic attraction between the first magnetic part 17a and the first magnetic part 132, the magnetic attraction between the second sliding shaft 14b and the second magnetic part 134, and the magnetic attraction between the second magnetic part 17b and the second magnetic part 134 is F. In addition, the gravity of the mover is G (for example, the sum of the gravity of the focus bracket 12, the first magnetic part 132 and the second magnetic part 134). Among them, F and G satisfy: F ≥ 5G. In this way, when F and G satisfy the above relationship, it can be ensured that the friction force generated by the magnetic attraction acting on the sliding shaft can be greater than the gravity of the mover and other forces that may cause the mover to move in a stationary state (such as magnetic interference, inertia, etc., that is, the friction force caused by the magnetic attraction > the gravity of the mover + the external magnetic interference force of the camera module 100 + the inertia force generated by the camera module 100 during human movement). At this time, this embodiment can achieve that the mover can remain stationary at the current target position when the power is off (the first coil 131 and the second coil 133 are not energized), that is, when the mover is in the target position, there is no need to continuously energize the first coil 131 and the second coil 133 to maintain the current position, thereby achieving the purpose of reducing power consumption.

[0224] FIG. 23 is a fifth schematic diagram of a partial structure of some embodiments of the focus motor 10 shown in FIG. 4 .

[0225] As shown in FIG23 , the focus motor 10 further includes a circuit board assembly 18. The circuit board assembly 18 includes a Hall sensor 18a, a controller 18b, a second circuit board 18c, and a tunnel magnetoresistive (TMR) sensor 18e. The Hall sensor 18a, controller 18b, and TMR sensor 18e are spaced apart and fixed to the second circuit board 18c. The Hall sensor 18a is electrically connected to the controller 18b via the second circuit board 18c. The TMR sensor 18e is electrically connected to the controller 18b via the second circuit board 18c.

[0226] It is understood that FIG23 only illustrates one embodiment of the position of the controller 18b. In other embodiments, the controller 18b may also be disposed on the first circuit board 135 shown in FIG12 . In this case, the controller 18b may be electrically connected to the Hall sensor 18a and the TMR sensor 18e via the first circuit board 135 and the second circuit board 18c. The controller 18b may also be disposed in the image sensor module 3 shown in FIG22 . In other embodiments, the controller 18b may also be integrated into the Hall sensor 18a or the TMR sensor 18e. This application does not specifically limit this.

[0227] FIG. 24 is a sixth schematic diagram of a partial structure of some embodiments of the focus motor 10 shown in FIG. 4 .

[0228] As shown in FIG24 , the bottom plate 152 of the housing 15 is provided with a first through hole 1523 and a second through hole 1524 spaced apart from each other. The first through hole 1523 and the second through hole 1524 both communicate with the inside and the outside of the housing 15 .

[0229] Illustratively, the second circuit board 18c is fixed to the outer side of the bottom plate 152 of the housing 15. Illustratively, the second circuit board 18c can be fixed to the outer side of the bottom plate 152 of the housing 15 by adhesive or the like.

[0230] For example, the Hall sensor 18a and the controller 18b may both be located in the first through hole 1523. In this way, the Hall sensor 18a and the controller 18b may be exposed relative to the bottom plate 152 of the housing 15 through the first through hole 1523.

[0231] In addition, the TMR sensor 18 e may be located in the second through hole 1524 , so that the TMR sensor 18 e is exposed relative to the bottom plate 152 of the housing 15 through the second through hole 1524 .

[0232] FIG. 25 is a third partial cross-sectional schematic diagram of the focus motor 10 shown in FIG. 4 taken along line DD in some embodiments.

[0233] As shown in Figure 25 , the second circuit board 18c is fixed to the side of the bottom plate 152 of the housing 15 away from the focus bracket 12. Furthermore, the Hall sensor 18a is positioned closer to the second magnetic member 134 than the first magnetic member 132. In other words, the distance between the Hall sensor 18a and the second magnetic member 134 is smaller than the distance between the Hall sensor 18a and the first magnetic member 132. Thus, the Hall sensor 18a is used to measure the magnetic deviation of the second magnetic member 134 during its movement.

[0234] In other embodiments, the Hall sensor 18a may also be disposed closer to the first magnetic member 132 relative to the second magnetic member 134. In this way, the Hall sensor 18a is used to measure the magnetic difference of the first magnetic member 132 during its movement.

[0235] FIG. 26 is a graph showing the magnetic difference and the stroke when the second magnetic member 134 moves along the first direction X as measured by the Hall sensor 18 a shown in FIG. 25 .

[0236] As shown in Figure 26, the horizontal axis represents the travel S1 of the second magnetic member 134 along the first direction X, in millimeters (mm). The vertical axis represents the magnetic difference B1 of the first magnetic member 132 at different travel distances, as measured by the Hall sensor 18a, in millitesr (mT). It will be understood that the magnetic difference B1 can be the difference between the magnetic induction intensity at a certain position and the magnetic induction intensity at the initial position.

[0237] For example, the position of the Hall sensor 18a is fixed (i.e., the position remains unchanged), and the second magnetic member 134 can move along the first direction X. At this time, when the second magnetic member 134 moves along the first direction X along the stroke S1, the Hall sensor 18a can measure the magnetic difference B1 of the second magnetic member 134 in the movement stroke S1. Based on the stroke S1 and the magnetic difference B1, an S1-B1 line can be obtained. In one embodiment, the S1-B1 line of the second magnetic member 134 can be obtained through simulation or experiment, and can be pre-stored in the controller 18b during the assembly process of the camera module 100. In this way, during the focusing process of the camera module 100, the magnetic difference B1 when the second magnetic member 134 moves to a certain position is first measured by the Hall sensor 18a. Then, the controller 18b is used to confirm the stroke S1 corresponding to the measured magnetic difference B1 based on the measured magnetic difference B1 and the S1-B1 line. The stroke S1 is both the movement stroke of the second magnetic member 134 and the movement stroke of the mover. However, through the measurement method of the Hall sensor 18a described above, the applicant discovered that when the first magnetic member 132 has a small movement range (the dotted box M1 in FIG26 ), the Hall sensor 18a is not sufficiently accurate to accurately measure the magnetic difference, and thus the movement range cannot be accurately determined from the measured magnetic difference. Furthermore, when the first magnetic member 132 has a large movement range (the dotted box M2 in FIG26 ), the Hall sensor 18a is not sufficiently accurate to accurately measure the magnetic difference, and thus the movement range cannot be accurately determined from the measured magnetic difference.

[0238] As shown in Figure 25, the focus motor 10 further includes a magnetic grid 18d. The magnetic grid 18d is fixed to the focus bracket 12. For example, the length direction of the magnetic grid 18d can be parallel to the movement direction of the focus bracket 12 (ie, the first direction X).

[0239] In this embodiment, the TMR sensor 18e is used to measure the magnetic difference of the magnetic grid 18d during its movement. The relative movement between the TMR sensor 18e and the magnetic grid 18d uses the magnetoresistance effect, where resistance changes due to an external magnetic field, to detect the precise position of the mover.

[0240] FIG. 27 is a graph showing the magnetic difference and the stroke when the magnetic grid 18 d moves along the first direction X as measured by the TMR sensor 18 e shown in FIG. 25 .

[0241] As shown in Figure 27, the magnetic grid 18d includes a plurality of first polarity blocks 181d and a plurality of second polarity blocks 182d. The plurality of first polarity blocks 181d and the plurality of second polarity blocks 182d are arranged alternately in sequence. In other words, a second polarity block 182d is connected between two adjacent first polarity blocks 181d. The polarity of the first polarity block 181d is different from the polarity of the second polarity block 182d. For example, the polarity of the first polarity block 181d is the north (N) pole, and the polarity of the second polarity block 182d is the south (S) pole. Alternatively, the polarity of the first polarity block 181d is the south (S) pole, and the polarity of the second polarity block 182d is the north (N) pole.

[0242] As shown in Figure 27 , the horizontal axis represents the travel S2 of the magnetic grid 18d along the first direction X, measured in millimeters (mm). The vertical axis represents the magnetic difference B1 of the magnetic grid 18d at different travels, as measured by the TMR sensor 18e, measured in milliteslaers (mT). It will be appreciated that the magnetic difference B1 can be the difference between the magnetic induction intensity at a certain position and the magnetic induction intensity at the initial position.

[0243] Exemplarily, the position of the TMR sensor 18e is a fixed position (i.e., the position remains unchanged), and the magnetic grid 18d can move along the first direction X. At this time, when the magnetic grid 18d moves along the first direction X, each first polarity block 181d can obtain an S21-B21 line when measured by the TMR sensor 18e, and each second polarity block 182d can obtain an S22-B22 line when measured by the TMR sensor 18e. Among them, the S21-B21 line is roughly symmetrical with the S22-B22 line. In addition, based on the S21-B21 line and the S22-B22 line, an S2-B2 line of the magnetic grid 18d can be obtained. In one embodiment, the S2-B2 line of the magnetic grid 18d can be obtained by simulation or experiment, and can be pre-stored in the controller 18b during the assembly process of the camera module 100. In this way, during the focusing process of the camera module 100, the magnetic difference B2 when the magnetic grid 18d moves to a certain position is first measured by the TMR sensor 18e. Then, the controller 18b is used to confirm the stroke S2 ​​corresponding to the measured magnetic difference B2 based on the measured magnetic difference B2 and the S2-B2 line. The stroke S2 ​​is the movement stroke of the magnetic grid 18d and also the movement stroke of the mover. However, according to Figure 27, it can be found that since the S21-B21 lines of each first polarity block 181d of the magnetic grid 18d are roughly the same, the S21-B21 line of the first polarity block 181d is roughly symmetrical with the S22-B22 line of the second polarity block 182d, so that when the TMR sensor 18e measures a magnetic difference B2, one magnetic difference B2 can correspond to multiple movement strokes S2 (for example, Figure 27 shows that S2 includes S21, S22, S23 and S24). In this way, on the one hand, it is difficult to uniquely determine the movement stroke S2 ​​of the mover through the magnetic difference B2 measured by the TMR sensor 18e. On the other hand, when the camera module 100 is powered off (the first coil 131 and the second coil 133 are powered off) and then powered on (the first coil 131 and the second coil 133 are powered on), it is also impossible to identify which first polarity block 181d or which second polarity block 182d the TMR sensor 18e was measuring before it was powered off.

[0244] As can be seen from the above, whether the Hall sensor 18a is used to measure the magnetic difference of the second magnetic member 134 during movement, or the TMR sensor 18e is used to measure the magnetic difference of the magnetic grid 18d during movement, it is impossible to accurately confirm the movement range of the mover. Therefore, based on the above-mentioned problems, this application provides a method for accurately determining the movement range of the mover by cooperating with the Hall sensor 18a and the TMR sensor 18e. The method is not limited to the following steps.

[0245] The Hall sensor 18a measures the magnetic difference B1 when the first magnetic member 132 moves to the first position along the first direction X, determines the first movement stroke S1 of the mover according to the magnetic difference B1, and transmits the first movement stroke S1 to the controller 18b.

[0246] For example, the Hall sensor 18a measures a magnetic difference B1 of 1 mT when the first magnetic member 132 moves to a certain position along the first direction X. At this time, based on the data of the S1-B1 line pre-stored by the controller 18b, it can be determined that the first movement distance S1 corresponding to 1 mT is equal to 0.06 mm.

[0247] TMR sensor 18e measures magnetic difference B2 when magnetic grid 18d moves to a first position along a first direction X. Based on B2, it determines multiple second movement strokes S2 of the mover and transmits these multiple second movement strokes S2 to controller 18b. These multiple second movement strokes S2 include S21, S22, ..., S2n. n is the total number of first polarity blocks 181d and second polarity blocks 182d in magnetic grid 18d. For example, n is 9. In this case, second movement strokes S2 include S21, S22, ..., S29.

[0248] For example, TMR sensor 18e measures a magnetic difference of 1.2 mT when magnetic grid 18d moves to a first position along a first direction X. Based on the data on the S2-B2 line pre-stored by controller 18b, the second movement range S2 corresponding to 1.2 mT can be determined. S2 includes S21, which is 0.08 mm, S22, which is 0.18 mm, S23, which is 0.28 mm, ..., and S29, which is 0.98 mm.

[0249] The controller 18 b determines a value closest to the first movement stroke S1 from among the plurality of second movement strokes S2 based on the first movement stroke S1 and the plurality of second movement strokes S2 , and determines the value as the movement stroke of the mover.

[0250] For example, the first movement stroke S1 is equal to 0.06 mm. The second movement stroke S2 ​​includes S21 of 0.08 mm, S22 of 0.18 mm, S23 of 0.28 mm, ..., and S29 of 0.98 mm. Obviously, S21 of the second movement stroke S2 ​​is closest to the first movement stroke S1. Therefore, S21 of the second movement stroke S2 ​​is confirmed as the movement stroke of the mover, that is, the movement stroke of the mover is 0.08 mm.

[0251] In this embodiment, through the cooperation of the TMR sensor 18e and the Hall sensor 18a, the movement stroke of the mover can be accurately determined, thereby solving the problem that it is difficult for the TMR sensor 18e to uniquely determine the movement stroke of the mover on the one hand, and solving the problem that it is difficult for the Hall sensor 18a to accurately determine the movement stroke of the mover on the other hand.

[0252] As shown in Figures 24 and 25 , in this embodiment, the second circuit board 18c is fixed to the side of the bottom plate 152 of the housing 15 that is away from the focus bracket 12. Thus, compared to fixing the second circuit board 18c on the inner side of the bottom plate 152 of the housing 15, the second circuit board 18c, the Hall sensor 18a, and the TMR sensor 18e can all be positioned significantly further away from the focus bracket 12, thereby preventing the focus bracket 12 from striking the second circuit board 18c, the Hall sensor 18a, the TMR sensor 18e, and the electronic components of the second circuit board 18c during movement in the first direction X.

[0253] Secondly, this embodiment provides a first through hole 1523 and a second through hole 1524 arranged at intervals on the bottom plate 152 of the housing 15, and sets the Hall sensor 18a in the first through hole 1523, and the TMR sensor 18e in the second through hole 1524. In this way, on the one hand, the Hall sensor 18a can be exposed relative to the bottom plate 152 of the housing 15 through the first through hole 1523, so as to measure the magnetic difference of the second magnetic member 134 during movement. On the other hand, the TMR sensor 18e can be exposed relative to the bottom plate 152 of the housing 15 through the second through hole 1524, so as to measure the magnetic difference of the magnetic grid 18d during movement. On the other hand, the Hall sensor 18a and the TMR sensor 18e can utilize the thickness space of the bottom plate 152 of the housing 15, thereby improving the space utilization rate of the focus motor 10 and facilitating the thinning of the focus motor 10.

[0254] In other embodiments, the second circuit board 18c may also be fixed to a side of the bottom plate 152 of the housing 15 close to the focus bracket 12. This application does not limit this in detail.

[0255] As shown in Figure 25, the focus motor 10 further includes a magnetic isolation member 18f. The material of the magnetic isolation member 18f can be stainless steel.

[0256] In one embodiment, the magnetic isolation member 18f includes a first magnetic isolation portion 181f, a second magnetic isolation portion 182f, and a third magnetic isolation portion 183f. The second magnetic isolation portion 182f and the third magnetic isolation portion 183f are connected to the periphery of the first magnetic isolation portion 181f. The second magnetic isolation portion 182f and the third magnetic isolation portion 183f are arranged opposite to each other.

[0257] In other embodiments, the magnetic isolation member 18f may adopt other structures. For example, the magnetic isolation member 18f may not include the second magnetic isolation portion 182f and / or the third magnetic isolation portion 183f. This application does not limit this in detail.

[0258] As shown in Figure 25, the magnetic grid 18d is fixed on the magnetic isolation member 18f. The magnetic isolation member 18f wraps part of the magnetic grid 18d. The part of the magnetic grid 18d exposed relative to the magnetic isolation member 18f faces the TMR sensor 18e. In addition, the magnetic isolation member 18f is fixed on the focusing bracket 12. At this time, the magnetic grid 18d can be fixed on the focusing bracket 12 through the magnetic isolation member 18f. The magnetic isolation member 18f can be used to prevent the first magnetic member 132, the second magnetic member 134 and the magnetic members around the TMR sensor 18e from generating magnetic interference on the TMR sensor 18e.

[0259] Exemplarily, the first magnetic shielding portion 181f is located on a side of the magnetic grid 18d close to the first magnetic member 132. The first magnetic shielding portion 181f can be used to prevent the magnetic field of the first magnetic member 132 from causing magnetic interference to the TMR sensor 18e.

[0260] Exemplarily, the second magnetic shielding portion 182f is located on a side of the magnetic grid 18d close to the second magnetic member 134. The second magnetic shielding portion 182f can be used to prevent magnetic interference to the TMR sensor 18e caused by the magnetic field on the right side of the TMR sensor 18e.

[0261] For example, the third magnetic isolation portion 183 f may be used to prevent the magnetic field on the left side of the TMR sensor 18 e from causing magnetic interference to the TMR sensor 18 e .

[0262] In other embodiments, when the magnetic isolation member 18f adopts other structures, the magnetic isolation member 18f is located on the side of the magnetic grid 18d close to the first magnetic member 132, or the magnetic isolation member 18f is located on the side of the magnetic grid 18d close to the second magnetic member 134.

[0263] As shown in Figures 24 and 25 , the periphery of the first through-hole 1523 protrudes toward the focus bracket 12. Relative to the top surface of the Hall sensor 18a, the top surface of the protruding portion is closer to the focus bracket 12. This prevents the focus bracket 12 from striking the Hall sensor 18a during movement in the first direction X, and the Hall sensor 18a is less likely to be damaged by the passive element.

[0264] In other embodiments, a first buffer member (not shown) may be fixed to the periphery of the first through-hole 1523. The top surface of the first buffer member is closer to the focus bracket 12 relative to the top surface of the Hall sensor 18a. In this case, the focus bracket 12 will not collide with the Hall sensor 18a during movement in the first direction X, and the Hall sensor 18a is not easily damaged by the focus bracket 12.

[0265] In other embodiments, when the first through hole 1523 is also provided with other electronic components of the second circuit board 18c, in the second direction Z, the top surface of the protruding portion is also closer to the focusing bracket 12 than the top surface of the electronic components (including the Hall sensor 18a) in the first through hole 1523.

[0266] It is understood that the configuration of the periphery of the second through-hole 1524 can also be similar to the configuration of the periphery of the first through-hole 1523. For example, the periphery of the second through-hole 1524 protrudes toward the focus bracket 12. With respect to the top surface of the TMR sensor 18e, the top surface of the protruding portion is closer to the focus bracket 12. The details are not further described here.

[0267] It is understood that other electronic components on the second circuit board 18c are exposed through the through-holes in the bottom plate 152 of the housing 15. The arrangement of the other electronic components on the second circuit board 18c and the through-holes in the bottom plate 152 can be similar to the arrangement of the Hall effect sensor 18a and the first through-hole 1523, or the arrangement of the TMR sensor 18e and the second through-hole 1524. Details are not repeated here.

[0268] FIG. 28 is a partial cross-sectional schematic diagram of the focus motor 10 shown in FIG. 4 taken along line GG in some embodiments.

[0269] As shown in Figure 28, the focus motor 10 further includes a first buffer member 19a and a second buffer member 19b. For example, the first and second buffer members 19a, 19b can be made of a flexible material. For example, the first and second buffer members 19a, 19b can be made of a soft material such as soft glue, mylar, or foam. It is understood that this embodiment does not specifically limit the number, size, or shape of the first and second buffer members 19a, 19b.

[0270] As shown in FIG28 , the focus bracket 12 includes a first impact surface 128 a and a second impact surface 128 b that are disposed in opposite directions.

[0271] In addition, the first buffer member 19a is connected to the focus bracket 12. At least a portion of the first buffer member 19a may protrude relative to the first impact surface 128a.

[0272] In one embodiment, a portion of the first buffer member 19a may be located within the focus bracket 12, while a portion may protrude relative to the first impact surface 128a. It is understood that a gap may be reserved between the portion of the first buffer member 19a located within the focus bracket 12 and the focus bracket 12. This gap provides room for the first buffer member 19a to deform.

[0273] In one embodiment, the first buffer member 19a may be connected to the first impact surface 128a, and the entire first buffer member 19a may protrude relative to the first impact surface 128a.

[0274] It is understandable that there are various ways to connect the first buffer member 19 a and the focus bracket 12 .

[0275] In one embodiment, the first buffer member 19 a may be connected to the focus bracket 12 by secondary injection molding.

[0276] In one embodiment, the first buffer member 19 a may also be formed into an integrally formed structural member with the focus bracket 12 by insert-molding or the like.

[0277] In one embodiment, the first buffer member 19a may also be connected to the focus bracket 12 by a fixing method such as bonding.

[0278] It can be understood that by connecting the first buffer member 19a to the focus bracket 12, and at least a portion of the first buffer member 19a can protrude relative to the first impact surface 128a, the first buffer member 19a can serve as a stop member when the focus bracket 12 moves along the first direction X. In this way, when the first buffer member 19a hits the base 11 or other structures of the focus motor 10, the kinetic energy can be absorbed by the deformation of the first buffer member 19a, thereby reducing both the abnormal sound of the impact and the dust generated by the impact. In addition, since the focus bracket 12 no longer directly hits the base 11, it can be ensured that the focus bracket 12 and the base 11 are not damaged, reducing the risk of failure of the focus bracket 12 and the base 11, that is, ensuring the reliability of the focus bracket 12.

[0279] As shown in Figure 28, the second buffer member 19b is connected to the focus bracket 12. At least a portion of the second buffer member 19b may protrude relative to the second impact surface 128b. The connection method between the second buffer member 19b and the focus bracket 12 can be referred to as the connection method between the first buffer member 19a and the focus bracket 12. The details will not be repeated here.

[0280] In other embodiments, a buffer may be connected to an area of ​​the focus bracket 12 where there is a possibility of collision with other components of the focus motor 10 (such as the base 11), so as to avoid damage to the focus bracket 12 due to direct collision with the component when the focus bracket 12 moves along the first direction X, thereby ensuring that the focus bracket 12 has better reliability.

[0281] In other embodiments, a first buffer member 19a may be connected to the surface of the first impact surface 128a of the base 11 facing the focus bracket 12. In this way, when the focus bracket 12 moves along the first direction X, the first buffer member 19a can serve as a stop. Thus, when the first buffer member 19a impacts the focus bracket 12, the deformation of the first buffer member 19a absorbs kinetic energy, thereby reducing the abnormal sound of the impact. Furthermore, since the focus bracket 12 no longer directly impacts the base 11, damage to the focus bracket 12 and the base 11 can be ensured, thereby ensuring the reliability of the focus bracket 12.

[0282] In other embodiments, a second buffer member 19b may be connected to the surface of the second impact surface 128b of the base 11 facing the focus bracket 12. In this way, when the focus bracket 12 moves along the first direction X, the second buffer member 19b can serve as a stop member. Thus, when the second buffer member 19b impacts the focus bracket 12, the deformation of the second buffer member 19b absorbs kinetic energy, thereby reducing the abnormal sound of the impact. In addition, since the focus bracket 12 no longer directly impacts the base 11, the focus bracket 12 and the base 11 can be protected from damage, thereby ensuring the reliability of the focus bracket 12.

[0283] FIG. 29 is a partial cross-sectional view of some embodiments of the lens 20 and the focus bracket 12 shown in FIG. 4 .

[0284] As shown in Figure 29, the lens 20 includes a lens barrel 20a and a lens 20b. The lens 20b is installed in the lens barrel 20a. It is understood that the shape, size and number of the lens 20b can be flexibly set according to needs.

[0285] For example, a boss 20c is provided on the outer surface of the lens barrel 20a. It is understood that the shape, size and number of the boss 20c can be flexibly set according to needs.

[0286] For example, the lens barrel 20a of the lens 20 is installed in the accommodating space 122a of the focus bracket 12. At this time, the lens 20b can be installed in the accommodating space 122a of the focus bracket 12 through the lens barrel 20a.

[0287] As shown in FIG29 , the focus motor 10 includes a colloid 129. The colloid 129 connects the lens barrel 20a and the focus bracket 12 and wraps around the boss 20c. It will be appreciated that the boss 20c can be used to increase the connection area between the lens barrel 20a and the focus bracket 12, thereby significantly improving the connection strength between the lens 20 and the focus bracket 12 and preventing the lens 20 from being dislodged from the focus bracket 12. Furthermore, because the colloid 129 wraps around the boss 20c, the boss 20c can be embedded within the colloid 129. In this way, the boss 20c can roughly "hook" onto the adhesive, thereby increasing the connection strength between the lens 20 and the focus bracket 12 and preventing the lens 20 from being dislodged from the focus bracket 12.

[0288] As shown in Figure 29, the side wall of the accommodating space 122a of the focusing bracket 12 is provided with a first glue dispensing groove 129a and a second glue dispensing groove 129b. The first glue dispensing groove 129a and the second glue dispensing groove 129b are arranged at intervals along the length direction of the focusing bracket 12 (i.e., the first direction X). The openings of the first glue dispensing groove 129a and the second glue dispensing groove 129b are respectively facing the two openings of the accommodating space 122a. For example, compared with the second glue dispensing groove 129b, the first glue dispensing groove 129a is closer to the object side of the lens 20. Compared with the first glue dispensing groove 129a, the second glue dispensing groove 129b is closer to the image side of the lens 20.

[0289] A first adhesive 129c is disposed within the first adhesive dispensing groove 129a. The first adhesive 129c connects the lens barrel 20a and the focus bracket 12. A second adhesive 129d is disposed within the second adhesive dispensing groove 129b. The second adhesive 129d connects the lens barrel 20a and the focus bracket 12. It will be appreciated that FIG. 29 illustrates the boss 20c embedded within the first adhesive 129c. In other embodiments, the boss 20c may also be located within the second adhesive 129d. This application does not limit this in detail.

[0290] It can be understood that, on the one hand, the interaction between the first glue 129c and the second glue 129d can significantly enhance the connection strength between the lens 20 and the focus bracket 12, preventing the lens 20 from being removed from the focus bracket 12. On the other hand, because the openings of the first glue dispensing groove 129a and the second glue dispensing groove 129b are respectively oriented toward the two openings of the accommodating space 122a, during the glue dispensing process, glue can be dispensed into the first glue dispensing groove 129a from one opening of the accommodating space 122a, and into the second glue dispensing groove 129b from the other opening of the accommodating space 122a. In this manner, the glue can cover a large area of ​​the outer surface of the lens barrel 20a and the wall surface of the accommodating space 122a of the focus bracket 12.

[0291] FIG30 is a partial cross-sectional schematic diagram of the portion of the camera module 100 shown in FIG5 taken along HH in some embodiments.

[0292] As shown in Figure 30, the image sensor module 3 includes a module circuit board 31, an image sensor 32, a filter holder 33, and a filter 34. The image sensor 32, also known as a photosensitive chip or photosensitive element, is used to convert image information carried by ambient light into electrical signals.

[0293] It is understandable that the image sensor module 3 may also include fewer or more structures. For example, the image sensor module 3 may include fewer structures. Exemplarily, the image sensor 32 may not include the filter holder 33 and / or the filter 34. The image sensor module 3 may also include more structures. Exemplarily, the image sensor 32 may also include electronic components. The electronic components are also fixed to the module circuit board 31 and electrically connected to the module circuit board 31. At this time, signals can be transmitted between the electronic components and the module circuit board 31. Electronic components can be used to assist the image sensor 32 in processing electrical signals. Electronic components can be components such as capacitors, inductors, resistors or chips. The figure schematically frames the electronic components with dotted boxes.

[0294] As shown in Figure 30, the image sensor 32 can be set on the module circuit board 31 and electrically connected to the module circuit board 31. At this time, signals can be transmitted between the image sensor 32 and the module circuit board 31. The filter holder 33 is fixedly connected to the module circuit board 31. The filter holder 33 and the image sensor 32 are located on the same side of the module circuit board 31. The filter holder 33 is provided with a light hole 331. The filter 34 is fixedly connected to the filter holder 33. The filter 34 can be located in the light hole 331. The filter 34 is also arranged opposite to the image sensor 32. The filter 34 can be used to filter infrared light or blue light in the light before entering the image sensor 32, thereby ensuring that the image sensor 32 has better imaging quality.

[0295] As shown in FIG30 , the module circuit board 31 is fixed to the bottom plate 152 of the housing 15. Furthermore, a portion of the module circuit board 31 may be located within the escape space 106 of the housing 15, and / or a portion of the image sensor 32 may be located within the escape space 106 of the housing 15, and / or a portion of the filter holder 33 may be located within the escape space 106 of the housing 15, and / or a portion of the filter 34 may be located within the escape space 106 of the housing 15.

[0296] As shown in Figure 30, a portion of the first reflective module 2 can extend into the movable space 113 of the base 11 through the second light-transmitting hole 114b of the base 11 and be fixed to the filter holder 33. In other embodiments, a portion of the first reflective module 2 can extend into the movable space 113 of the base 11 through the second light-transmitting hole 114b of the base 11 and be fixed to the module circuit board 31.

[0297] FIG. 31 is a partially exploded schematic diagram of some embodiments of the first reflection module 2 shown in FIG. 3 .

[0298] As shown in FIG31 , the first reflective module 2 includes a first bracket 21 and a first reflective member 22. The first reflective member 22 may be a prism or a reflector. In this embodiment, the first reflective member 22 is described using a prism as an example. The first reflective module 2 may also not include the first bracket 21.

[0299] Exemplarily, the first bracket 21 has a top surface 211, side surfaces 212, and a bottom surface 213. The side surfaces 212 are connected between the top surface 211 and the bottom surface 213. The first bracket 21 has a fixed space 214. The fixed space 214 forms a first opening 2121 on the side surface 212, and a second opening 2122 on the bottom surface 213. A portion of the top surface 211 of the first reflector 22 can be sunken toward the bottom surface 213 of the first reflector 22 to provide more clearance for other components of the electronic device 1000.

[0300] Exemplarily, the fixed space 214 includes an inclined surface 2141 . In one embodiment, the shape of the fixed space 214 may be adapted to the shape of the first reflective member 22 .

[0301] As shown in Figure 31, the first reflector 22 includes a first light incident surface 221, a first reflective surface 222, and a first light emitting surface 223. The first reflective surface 222 is connected between the first light incident surface 221 and the first light emitting surface 223. The first light incident surface 221, the first reflective surface 222, and the first light emitting surface 223 can enclose a shape with a triangular cross-section. It will be understood that the first light incident surface 221 is the object-side surface of the first reflector 22, and the first light emitting surface 223 is the image-side surface of the first reflector 22.

[0302] As shown in Figures 30 and 31 , the first reflector 22 can be fixed within the fixed space 214 of the first bracket 21. The first light incident surface 221 of the first reflector 22 is exposed through the first opening 2121 and is positioned opposite the lens 20 of the focus module 1 through the second light-transmitting hole 114b of the base 11. Furthermore, the first light emitting surface 223 of the first reflector 22 is exposed through the second opening 2122 and is positioned opposite the filter 34 of the image sensor module 3. The first reflective surface 222 of the first reflector 22 can be connected to the inclined surface 2141 of the fixed space 214.

[0303] It can be understood that the first reflective member 22 is used to change the optical axis of the camera module 100 from the first direction X to the second direction Z.

[0304] In one embodiment, the first reflecting surface 222 of the first reflecting member 22 can also correct aberrations such as astigmatism when realizing light reflection, and can increase the optical path length to further improve the image quality. Exemplarily, the first reflecting surface 222 of the first reflecting member 22 can be a plane to have good processability. In other embodiments, the first reflecting surface 222 of the first reflecting member 22 can also be a spherical surface, a cylindrical surface, or a free-form surface. Among them, the spherical surface can be a convex surface or a concave surface. The cylindrical surface has a curvature in one direction and extends in a straight line in another direction. Exemplarily, a high-reflection film can also be provided on the first reflecting surface 222 of the first reflecting member 22 to improve the reflection efficiency so that the light path enters the subsequent optical element after being completely reflected.

[0305] It is understood that the structure of the first reflective module 2 is not limited to the structure shown in Figure 31. Any reflective module that can be used to change the optical axis of the camera module 100 from the first direction X to the second direction Z is within the protection scope of this application.

[0306] FIG32 is a partially exploded schematic diagram of some embodiments of the second reflection module 4 shown in FIG3 .

[0307] As shown in Figure 32, the second reflective module 4 includes a second bracket 41, a second reflective member 42, and a plano-convex lens 43. The second reflective member 42 can be a prism or a reflector. In this embodiment, the second reflective member 42 is described using a prism as an example. The second reflective module may also not include the second bracket 41 and / or the plano-convex lens 43. The plano-convex lens 43 can be a lens with one surface being flat and the other surface being convex.

[0308] Exemplarily, the second reflector 42 includes a second light incident surface 421, a second reflective surface 422, and a second light emitting surface 423. The second reflective surface 422 is connected between the second light incident surface 421 and the second light emitting surface 423. The second light incident surface 421 is the object side surface of the second reflector 42, and the second light emitting surface 423 is the image side surface of the second reflector 42.

[0309] As shown in Figure 32, the second reflector 42 is fixed to the second bracket 41. The connection relationship between the second reflector 42 and the second bracket 41 can also refer to the connection relationship between the first reflector 22 and the first bracket 21. The details are not repeated here.

[0310] Referring to FIG2 , the plane of the plano-convex lens 43 is fixed to the second light-entering surface 421 of the second reflector 42. The plano-convex lens 43 can be integrally formed with the first reflector. For example, the plano-convex lens 43 and the first reflector can be integrally formed by molding or grinding.

[0311] For example, the plano-convex lens 43 is disposed opposite the light-transmitting portion 203 of the rear cover 202. Light passing through the light-transmitting portion 203 can enter the second reflector 42 via the plano-convex lens 43. The second light-emitting surface 423 of the second reflector 42 is disposed opposite the lens 20 of the focus module 1 through the first light-transmitting hole 114a of the base 11. Thus, light passing through the second reflector 42 can enter the lens 20 of the focus module 1 via the first light-transmitting hole 114a of the base 11.

[0312] It is understood that the structure of the second reflective module 4 is not limited to the structures shown in Figures 2 and 32. Any reflective module that can be used to change the optical axis of the camera module 100 from the second direction Z to the first direction X is within the scope of protection of this application.

[0313] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the scope of protection of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0314] It should be noted that all the above drawings are for illustrative purposes only and do not represent the actual size of the product. Furthermore, the dimensional ratios between the components in the drawings are not intended to limit the actual product of the present application.

[0315] The above are only some of the embodiments and implementations of this application. The scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A camera module (100), characterized in that: The invention comprises a focus module (1), a first reflection module (2) and an image sensor module (3) arranged from the object side to the image side, the focus module (1) and the first reflection module (2) are arranged along a first direction, the first reflection module (2) and the image sensor module (3) are arranged along a second direction, the first reflection module (2) is used to change the optical axis of the first direction to the second direction, and the first direction intersects with the second direction; The focus module (1) comprises a focus motor (10) and a lens (20); The focus motor (10) comprises a left side portion (101), a right side portion (102), a top portion (103) and a bottom portion (104); the left side portion (101) and the right side portion (102) are arranged along the first direction, and relative to the left side portion (101), the right side portion (102) is arranged close to the first reflection module (2); the top portion (103) and the bottom portion (104) are arranged along the second direction; the focus motor (10) has an installation space (105); the installation space (105) runs through the left side portion (101) and the right side portion (102); and the lens (20) is installed in the installation space (105); The bottom (104) of the focus motor (10) is recessed toward the top (103) to form an escape space (106), the escape space (106) extends to the right side (102) of the focus motor (10), and a portion of the image sensor module (3) is located in the escape space (106).

2. The camera module (100) according to claim 1, characterized in that: The focus motor (10) comprises a base (11), a focus bracket (12), a sliding shaft (14) and a housing (15); the focus bracket (12) is slidably connected to the base (11) via the sliding shaft (14); and the lens (20) is mounted on the focus bracket (12); The base (11) is fixed on a bottom plate (152) of the housing (15); the base (11) and the bottom plate (152) enclose an activity space (113); and the focus bracket (12) is located in the activity space (113); The sliding shaft (14) is fixed to the end of the base (11) away from the bottom plate (152), and the avoidance space (106) is formed on the bottom plate (152).

3. The camera module (100) according to claim 2, characterized in that: The avoidance space (106) is connected to the activity space (113), and a portion of the image sensor module (3) is exposed relative to the activity space (113); The base (11) is provided with a second light-transmitting hole (114b), the second light-transmitting hole (114b) being connected to the activity space (113), and a portion of the first reflection module (2) extends into the activity space (113) through the second light-transmitting hole (114b) and is fixed on the image sensor module (3).

4. The camera module (100) according to claim 2 or 3, characterized in that: At least one end of the sliding shaft (14) is welded to the metal insert (11b) in the base (11) by welding.

5. The camera module (100) according to claim 2 or 3, characterized in that: The focus motor (10) comprises a first coil (131), a first magnetic member (132), a second coil (133) and a second magnetic member (134); the first magnetic member (132) and the second magnetic member (134) are fixed on the focus bracket (12) and are located on both sides of the lens (20); The first coil (131) and the second coil (133) are fixed on the base (11) at intervals, the first coil (131) faces the first magnetic part (132), and the second coil (133) faces the second magnetic part (134), so as to drive the focusing bracket (12) to slide relative to the base (11) along the first direction.

6. The camera module (100) according to claim 5, characterized in that: The sliding shaft (14) comprises a first sliding shaft (14a) and a second sliding shaft (14b), and the materials of the first sliding shaft (14a) and the second sliding shaft (14b) are both magnetic conductive materials; Relative to the second magnetic member (134), the first sliding shaft (14a) is disposed close to the first magnetic member (132); and relative to the first magnetic member (132), the second sliding shaft (14b) is disposed close to the second magnetic member (134); The focusing bracket (12) is adsorbed on the first sliding shaft (14a) and the second sliding shaft (14b) through the magnetic attraction between the first sliding shaft (14a) and the first magnetic part (132), and the magnetic attraction between the second sliding shaft (14b) and the second magnetic part (134).

7. The camera module (100) according to claim 6, characterized in that: The focus motor (10) further comprises a first magnetic attraction component (17a) and a second magnetic attraction component (17b), wherein the first magnetic attraction component (17a) and the second magnetic attraction component (17b) are fixed on the base (11); The first magnetic attraction member (17a) is located on a side of the first magnetic member (132) close to the first sliding shaft (14a), and is spaced apart from the first sliding shaft (14a); The second magnetic attraction component (17b) is located on a side of the second magnetic component (134) close to the second sliding shaft (14b), and is spaced apart from the second sliding shaft (14b).

8. The camera module (100) according to claim 7, characterized in that: The sum of the magnetic attraction force between the first sliding shaft (14a) and the first magnetic part (132), the magnetic attraction force between the second sliding shaft (14b) and the second magnetic part (134), the magnetic attraction force between the first magnetic part (17a) and the first magnetic part (132), and the magnetic attraction force between the second magnetic part (17b) and the second magnetic part (134) is F; The sum of the gravity of the focus bracket (12), the first magnetic component (132) and the second magnetic component (134) is G; Among them, F and G satisfy: F≥5G.

9. The camera module (100) according to any one of claims 5 to 8, characterized in that: The base (11) comprises a third side portion (1123) and a fourth side portion (1124) arranged along a third direction, wherein the third direction intersects both the first direction and the second direction; the third side portion (1123) is provided with a first through hole (115a), and the fourth side portion (1124) is provided with a second through hole (115b); The focus motor (10) comprises a first circuit board (135), the first circuit board (135) comprising a first board portion (1351), a second board portion (1352) and a third board portion (1353) which are connected in sequence, and the first board portion (1351) and the third board portion (1353) are arranged opposite to each other; The first coil (131) is fixed on a side of the first plate portion (1351) facing the third plate portion (1353) and is electrically connected to the first plate portion (1351); the second coil (133) is fixed on a side of the third plate portion (1353) facing the first plate portion (1351) and is electrically connected to the third plate portion (1353); The first plate portion (1351) is fixed to a side of the third side portion (1123) away from the fourth side portion (1124), the third plate portion (1353) is fixed to a side of the fourth side portion (1124) away from the third side portion (1123), the first coil (131) is located in the first through hole (115a), and the second coil (133) is located in the second through hole (115b).

10. The camera module (100) according to claim 9, characterized in that: The housing (15) further comprises a first side plate (151) and a second side plate (153), wherein the first side plate (151) and the second side plate (153) are connected to the periphery of the bottom plate (152) at intervals, the first side plate (151) and the second side plate (153) are arranged opposite to each other, and the first side plate (151) and the second side plate (153) are made of metal material; The first side plate (151) is fixed to a side of the first plate portion (1351) of the first circuit board (135) away from the first coil (131), and the second side plate (153) is fixed to a side of the third plate portion (1353) of the first circuit board (135) away from the second coil (133).

11. The camera module (100) according to any one of claims 5 to 10, characterized in that: The focus motor (10) further comprises a Hall sensor (18a), a controller (18b), a second circuit board (18c), a magnetic grid (18d) and a tunnel magnetoresistive sensor (18e); The Hall sensor (18a), the controller (18b) and the tunnel magnetoresistive sensor (18e) are fixed on the second circuit board (18c) at intervals; the Hall sensor (18a) is electrically connected to the controller (18b) via the second circuit board (18c); and the tunnel magnetoresistive sensor (18e) is electrically connected to the controller (18b) via the second circuit board (18c); The second circuit board (18c) is fixed on the bottom plate (152), and the Hall sensor (18a) is used to measure the magnetic difference of the first magnetic member (132) or the second magnetic member (134) during movement, and to confirm the first movement stroke of the focus bracket (12); The focus motor (10) further comprises a magnetic grid (18d), wherein the magnetic grid (18d) is fixed on the focus bracket (12), and the tunnel magnetoresistive sensor (18e) is used to measure the magnetic difference of the magnetic grid (18d) during movement and confirm a plurality of second movement strokes of the focus bracket (12); The controller (18b) is used to confirm a value closest to the first movement stroke from among the plurality of second movement strokes based on the first movement stroke and the plurality of second movement strokes.

12. The camera module (100) according to claim 11, characterized in that: The second circuit board (18c) is fixed to a side of the bottom plate (152) away from the focusing bracket (12); The bottom plate (152) is provided with a first through hole (1523) and a second through hole (1524) which are arranged at intervals; The Hall sensor (18a) is located in the first through hole (1523), and the Hall sensor (18a) is connected to the first through hole (1523). The hole (1523) is exposed relative to the bottom plate (152); The tunnel magnetoresistive sensor (18e) is located in the second through hole (1524), and the tunnel magnetoresistive sensor (18e) is exposed relative to the bottom plate (152) through the second through hole (1524).

13. The camera module (100) according to claim 12, characterized in that: The periphery of the first through hole (1523) protrudes in a direction close to the focus bracket (12), and relative to the top surface of the Hall sensor (18a), the top surface of the protruding portion is close to the focus bracket (12); And / or, the periphery of the second through hole (1524) protrudes in a direction close to the focusing bracket (12), and relative to the top surface of the tunnel magnetoresistive sensor (18e), the top surface of the protruding portion is close to the focusing bracket (12).

14. The camera module (100) according to any one of claims 11 to 13, characterized in that: The focus motor (10) further comprises a magnetic isolation component (18f), wherein the magnetic isolation component (18f) is fixed on the focus bracket (12); The magnetic isolation component (18f) is located on a side of the magnetic grid (18d) close to the first magnetic component (132), or is located on a side of the magnetic grid (18d) close to the second magnetic component (134), or a portion of the magnetic isolation component (18f) is located on a side of the magnetic grid (18d) close to the first magnetic component (132), and a portion of the magnetic isolation component (18f) is located on a side of the magnetic grid (18d) close to the second magnetic component (134).

15. The camera module (100) according to any one of claims 2 to 14, characterized in that: The focus bracket (12) comprises a first impact surface (128a) and a second impact surface (128b) which are arranged in back-to-back relation, and the first impact surface (128a) and the second impact surface (128b) are arranged along the first direction; The focus motor (10) further comprises a first buffer member (19a), wherein the first buffer member (19a) is connected to the focus bracket (12), and at least a portion of the first buffer member (19a) can protrude relative to the first impact surface (128a); And / or, the focus motor (10) further comprises a second buffer member (19b), wherein the second buffer member (19b) is connected to the focus bracket (12), and at least a portion of the second buffer member (19b) can protrude relative to the second impact surface (128b).

16. The camera module (100) according to claim 15, characterized in that: A portion of the first buffer member (19a) is located in the focus bracket (12), and a portion thereof may protrude relative to the first impact surface (128a), and a gap is reserved between the portion of the first buffer member (19a) located in the focus bracket (12) and the focus bracket (12); And / or, a portion of the second buffer member (19b) is located inside the focus bracket (12), and a portion thereof may protrude relative to the second impact surface (128b), and a gap is reserved between the portion of the second buffer member (19b) located inside the focus bracket (12) and the focus bracket (12).

17. The camera module (100) according to any one of claims 1 to 16, characterized in that: The lens (20) comprises a lens barrel (20a) and a lens (20b), wherein the lens (20b) is installed in the lens barrel (20a), and the lens barrel (20a) is installed in the installation space (105) via a colloid (129); A boss (20c) is convexly provided on the outer surface of the lens barrel (20a), and the boss (20c) is embedded in the colloid (129).

18. The camera module (100) according to claim 17, characterized in that: A first glue dispensing groove (129a) and a second glue dispensing groove (129b) are provided on the side wall of the installation space (105), and the openings of the first glue dispensing groove (129a) and the second glue dispensing groove (129b) are respectively oriented toward two openings of the installation space (105); The colloid (129) includes a first colloid (129c) and a second colloid (129d), wherein the first colloid (129c) is disposed in the first glue dispensing groove (129a), and the second colloid (129d) is disposed in the second glue dispensing groove (129b).

19. The camera module (100) according to any one of claims 1 to 18, characterized in that: The image sensor module (3) comprises a module circuit board (31), an image sensor (32), a filter holder (33) and a filter (34); The image sensor (32) is arranged on the module circuit board (31) and is electrically connected to the module circuit board (31); the filter holder (33) is fixed to the module circuit board (31); the filter holder (33) and the image sensor (32) are located on the same side of the module circuit board (31); the filter holder (33) is provided with a light through hole (331); the filter (34) is fixed to the filter holder (33); the filter (34) can be located in the light through hole (331); and the filter (34) is also arranged opposite to the image sensor (32); A portion of the module circuit board (31) is located in the avoidance space (106), and / or a portion of the image sensor (32) is located in the avoidance space (106), and / or a portion of the filter holder (33) is located in the avoidance space (106), and / or a portion of the filter (34) is located in the avoidance space (106).

20. An electronic device (1000), characterized in that: It comprises a device housing (200) and a camera module (100) as described in any one of claims 1 to 19, wherein the camera module (100) is arranged in the device housing (200).

Images