CN115914779A - Camera module and electronic equipment - Google Patents

Camera module and electronic equipment Download PDF

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Publication number
CN115914779A
CN115914779A CN202110901474.3A CN202110901474A CN115914779A CN 115914779 A CN115914779 A CN 115914779A CN 202110901474 A CN202110901474 A CN 202110901474A CN 115914779 A CN115914779 A CN 115914779A
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CN
China
Prior art keywords
lens
camera module
limiting
fixedly connected
bracket
Prior art date
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Pending
Application number
CN202110901474.3A
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Chinese (zh)
Inventor
侯清
王建文
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202110901474.3A priority Critical patent/CN115914779A/en
Priority to PCT/CN2022/110093 priority patent/WO2023011559A1/en
Publication of CN115914779A publication Critical patent/CN115914779A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/55Optical parts specially adapted for electronic image sensors; Mounting thereof
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/51Housings
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/54Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

The application provides a camera module and electronic equipment. The camera module can be applied to electronic equipment. The camera module comprises a module circuit board, a photosensitive chip, a driving device and a lens component. Through being provided with drive arrangement in the module of making a video recording to when the module of making a video recording changes from operating condition to the off-state, actuating mechanism can drive first fitting piece motion, and the second fitting piece is close to the module circuit board under the effect of first fitting piece, and camera lens motor and first camera lens are close to the sensitization chip. Like this, the module of making a video recording when the stall state, the camera lens subassembly can with sensitization chip compact setting, the distance between camera lens subassembly and the sensitization chip is shorter to make the thickness of the module of making a video recording less.

Description

Camera module and electronic equipment
Technical Field
The application relates to the technical field of camera shooting, in particular to a camera shooting module and electronic equipment.
Background
With the performance requirement of the mobile phone camera module being improved, a photosensitive chip with a larger imaging size needs to be used. In order to analyze a larger size of the photo chip, the Total Track Length (TTL) of the lens needs to be increased, which results in an increase in the thickness of the camera module. When the camera module is applied to the mobile phone, the height of the mobile phone at the position of the camera module is higher, so that the thin setting of the mobile phone is hindered, and the user experience of the mobile phone is poor. Therefore, the camera module with a thin thickness is increasingly paid attention to various researches and enterprises.
Disclosure of Invention
The application provides a module and electronic equipment of making a video recording that thickness is thinner.
In a first aspect, an embodiment of the present application provides a camera module. The camera module comprises a module circuit board, a photosensitive chip, a driving device and a lens component. The photosensitive chip is fixed on the module circuit board and electrically connected with the module circuit board.
The driving device comprises a driving mechanism, a first matching piece and a second matching piece. First fitting piece and actuating mechanism all fixed connection in module circuit board. The first mating member is connected to the drive mechanism. The second fitting piece is movably connected with the first fitting piece.
The lens assembly includes a lens motor and a first lens. The lens motor is fixedly connected to the second fitting piece. The first lens is arranged on the lens motor and is opposite to the photosensitive chip. The lens motor is used for driving the first lens to move along the optical axis direction of the camera module.
When the camera module is switched from the working state to the stopping state (also called as a non-working state), the driving mechanism drives the first mating piece to move, the second mating piece is close to the module circuit board, and the lens motor and the first lens are close to the photosensitive chip.
In this embodiment, through being provided with drive arrangement in the module of making a video recording to when the module of making a video recording changes from operating condition to the off-state, actuating mechanism can drive first fitting piece motion, and the second fitting piece is close to the module circuit board under the effect of first fitting piece, and lens motor and first camera lens are close to the sensitization chip. Like this, the module of making a video recording when the stall state, the camera lens subassembly can with sensitization chip compact setting, the distance between camera lens subassembly and the sensitization chip is shorter to make the thickness of the module of making a video recording less, be favorable to the slimming setting of the module of making a video recording promptly.
In an implementable manner, the first fitting part is of cylindrical configuration and the inside of the first fitting part has a threaded configuration. The second fitting piece is of a cylindrical structure, and the outer side of the second fitting piece is provided with a thread structure. The first fitting part is in threaded connection with the second fitting part. The driving mechanism is used for driving the first matching piece to rotate around the optical axis of the camera module so as to drive the second matching piece to move along the direction parallel to the optical axis of the camera module. Thus, the structure of the driving device is simple.
In one implementation, the second mating member includes a first structural member, a second structural member, and a bumper. The first structural member is of a cylindrical structure, and the outer side of the first structural member is provided with a thread structure. The first structural member is in threaded connection with the first mating member.
The inner surface of the first structural member has a first boss. The inner surface of the second structural member is provided with a second boss. The second structural member is located inside the first structural member. The first boss and the second boss are arranged oppositely. The second boss is located on one side of the first boss far away from the module circuit board. The lens motor is fixedly connected to the second boss. The buffer piece is connected between the first boss and the second boss.
It can be understood that when the camera module accidentally falls, the lens assembly collides with an external object. The lens assembly presses the second structural member. At this moment, the buffer piece can apply elasticity to the second structural piece so as to buffer the extrusion force of the lens assembly to the second structural piece, thereby avoiding the damage of the lens assembly and the second structural piece.
In an implementation manner, the first boss is provided with a first limit groove. The second boss is provided with a second limiting groove. A part of the buffer piece is arranged in the first limit groove. One part of the buffer piece is arranged in the second limit groove. Therefore, the connecting area of the buffer part and the first boss and the second boss is larger, and the connection of the buffer part and the first boss and the second boss is more stable.
In one implementation, the buffer is a spring, a spring plate, rubber, or silicone.
In one implementable form, the second fitting further comprises a third structural element. The third structural member is annular. The third structural component is fixedly connected to one side, far away from the module circuit board, of the first structural component. The third structural member is provided with a limiting lug, and the second structural member is provided with a limiting side hole. The limiting convex block is arranged in the limiting side hole and is connected to the hole wall of the limiting side hole in a sliding mode.
It can be understood that the limiting convex block of the third structural member is matched with the limiting side hole of the second structural member, so that the second structural member is prevented from rotating relative to the first structural member, and the second structural member is guaranteed to have better stability.
In one realisable form, the outer surface of the first fitting has a gear portion. The output end of the driving mechanism is of a gear structure. The gear portion is meshed with the output end of the driving mechanism.
In one implementation, the drive device 46 further includes a stop. The limiting part is annular. The limiting piece is fixedly connected to the module circuit board. The inner wall of the limiting part is in a step shape. The inner wall of the limiting piece is provided with a limiting surface. The first fitting piece is arranged on the inner side of the limiting piece, and the gear portion of the first fitting piece is clamped between the module circuit board and the limiting face of the limiting piece.
In one implementable form, the lens assembly further comprises a connection mechanism and a second lens. The second lens is positioned between the first lens and the photosensitive chip. The connecting mechanism is connected between the first lens and the second lens.
The second lens includes a second barrel. The second lens cone is provided with a first limiting part and a second limiting part which are arranged at intervals.
The connecting mechanism comprises a first guide rod, a second guide rod, a first limiting bracket and a second limiting bracket. At least part of the first limiting bracket is positioned on one side of the first limiting part far away from the first lens. At least part of the second limit bracket is positioned on one side of the second limit part, which is far away from the first lens.
The first end of the first guide rod is fixedly connected to the lens motor. The second end of the first guide rod penetrates through the first limiting part and is fixedly connected to the first limiting bracket. The first guide rod is connected with the first limiting part in a sliding mode. The first end of the second guide rod is fixedly connected to the lens motor. The second end of the second guide rod penetrates through the second limiting part and is fixedly connected to the second limiting support. The second guide rod is connected to the second limiting part in a sliding mode.
The module of making a video recording is from operating condition to the in-process of off state, and the module of making a video recording is including starting position, intermediate position and stop position.
When the camera module is switched from the starting position to the middle position, the first guide rod, the first limiting bracket, the second guide rod, the second limiting bracket and the second lens are close to the photosensitive chip along with the lens motor.
When the camera module is switched from the middle position to the stop position, the first guide rod, the first limiting bracket, the second guide rod and the second limiting bracket are close to the photosensitive chip along with the lens motor. The first lens is close to the second lens, and the second lens is in a static state.
It can be understood that the second lens is additionally arranged to improve the number of the lenses, so that the optical total length of the camera module is improved, and high-quality imaging of the camera module is facilitated. In addition, the connecting mechanism is connected between the first lens and the second lens, so that when the camera module is in a stop state (also called a non-working state), the first lens and the second lens can be compactly arranged, the distance between the first lens and the second lens is short, the second lens and the photosensitive chip can be compactly arranged, and the distance between the second lens and the photosensitive chip is short, so that the thickness of the camera module is small, and the thin arrangement of the camera module is facilitated.
In one implementation, the connection mechanism further includes a first resilient member and a second resilient member. The first elastic member is sleeved on the first guide rod. One end of the first elastic piece is connected to the first end of the first guide rod, and the other end of the first elastic piece is connected to the first limiting part. The first resilient member is in a compressed state. The second elastic component is sleeved on the second guide rod. One end of the second elastic piece is connected to the first end of the second guide rod, and the other end of the second elastic piece is connected to the second limiting part. The second elastic member is in a compressed state.
In one implementation, the coupling mechanism further comprises a first magnet. The first magnet is fixedly connected to the first limiting part. The first limiting bracket comprises a first part, a second part and a third part which are connected in sequence. The first portion and the third portion are connected on the same side of the second portion. The first part and the second part are bent. The second part and the third part are bent. The first part and the third part are respectively positioned at two sides of the first limiting part. The second part is positioned on one side of the first limiting part close to the photosensitive chip.
The second end of the first guide bar is fixedly connected to the second portion. The first magnet is located between the first portion of the first limiting support and the middle of the first guide rod, and the first limiting support is made of a magnetic conduction material.
It can be understood that, because the first limit bracket is made of a magnetic conductive material, the first portion of the first limit bracket and the first magnet can generate magnetic force. The direction of the magnetic force applied to the first magnet is the direction of the first part of the first limiting support towards the first magnet. The first limiting part is also extruded by the first magnet, and at the moment, the first guide rod can be tightly matched with the first limiting part under the extrusion of the first limiting part.
In an implementation manner, the first limiting portion is provided with a third guide hole. The first guide rod penetrates through the third guide hole and is connected to the third guide hole in a sliding mode. The third guiding hole is a V-shaped hole. The middle part of the third guide hole is opposite to the first magnet.
It is understood that the first guide bar is pressed by the first position-limiting portion, and the first guide bar is pressed at the middle portion of the third guide hole, so that the first guide bar can be more closely matched with the first position-limiting portion.
In one implementation, the lens motor includes a base, a fixed bracket, a movable bracket, a first coil, a second coil, a first motor magnet, and a second motor magnet. The base is fixedly connected to the second mating member. The fixed support is fixedly connected to the base. The movable support is connected with the base and the fixed support in a sliding mode. The first lens is fixedly connected to the movable support.
One of the first coil and the first motor magnet is fixedly connected to the base, and the other one is fixedly connected to the movable support. The first coil is disposed opposite to the first motor magnet. One of the second coil and the second motor magnet is fixedly connected to the base, and the other one is fixedly connected to the movable support. The second coil and the second motor magnet are arranged oppositely.
In one implementation, the lens motor further includes a first slide bar and a second slide bar. One end fixed connection of first slide bar is in the base, other end fixed connection in fixed bolster. One end of the second sliding rod is fixedly connected to the base, and the other end of the second sliding rod is fixedly connected to the fixed support. The second sliding rod and the first sliding rod are arranged at intervals. The movable bracket is connected with the first sliding rod and the second sliding rod in a sliding mode.
It can be understood that the moving stroke of the moving bracket can be increased by slidably coupling the moving bracket to the first slide bar and the second slide bar.
In one implementable form, the lens assembly further comprises an iris diaphragm. The iris diaphragm is positioned on one side of the first lens, which is far away from the photosensitive chip. The iris diaphragm is fixedly connected with the first lens.
In one implementation, the lens assembly further includes a cover plate holder and a lens cover plate. The cover plate fixing frame is fixed on the second matching piece. The cover plate fixing frame is arranged around the first lens. The lens cover plate is fixedly connected with the cover plate fixing frame. The lens cover plate is positioned on one side, away from the photosensitive chip, of the first lens and is arranged opposite to the first lens.
In an implementable manner, the camera module further comprises a lens decoration and a waterproof silicone sleeve. The lens decoration is fixedly connected with the module circuit board. The cover plate fixing frame is positioned on the inner side of the lens decorating part. The outer peripheral edge of the waterproof silica gel sleeve is fixedly connected with the lens decorating part. The inner periphery of the waterproof silica gel sleeve is fixedly connected to the cover plate fixing frame.
In one implementation, the camera module further comprises a first sealing ring and a second sealing ring. The first sealing ring is fixedly connected with the inner peripheral edge of the waterproof silica gel sleeve and the cover plate fixing frame. The second sealing ring is fixedly connected with the outer peripheral edge of the waterproof silica gel sleeve and the lens decorating part.
In a second aspect, an embodiment of the present application provides an electronic device. The electronic equipment comprises a shell and the camera module. The camera module is arranged on the shell.
It can be understood that when the camera module is applied to an electronic device, the electronic device can be provided in a thin type.
Drawings
In order to explain the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.
Fig. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;
FIG. 2 isbase:Sub>A schematic partial cross-sectional view of the electronic device shown in FIG. 1 at line A-A;
fig. 3 is a schematic structural diagram of a camera module of the electronic device shown in fig. 1;
FIG. 4 is a partially exploded view of the camera module shown in FIG. 3;
FIG. 5 is a partially exploded view of the camera module body shown in FIG. 4;
FIG. 6 is a schematic view of a portion of the camera module body shown in FIG. 4;
fig. 7 is a partial structural schematic view of the camera module main body shown in fig. 4;
FIG. 8 is a schematic sectional view of a portion of the camera module body shown in FIG. 7 taken along line B-B;
FIG. 9 is an exploded schematic view of the drive assembly shown in FIG. 5;
FIG. 10 is an exploded schematic view of the lift mechanism shown in FIG. 9;
FIG. 11 is a schematic structural diagram of the limiting member shown in FIG. 10 at different angles;
FIG. 12 is an exploded view of the second fitting shown in FIG. 10;
FIG. 13 is a schematic view of the first structural member shown in FIG. 12 at another angle;
FIG. 14 is a schematic view of the second structural member shown in FIG. 12 at a different angle;
FIG. 15 is a schematic view of a portion of the second mating member shown in FIG. 10;
FIG. 16 is a schematic view of a portion of the second mating member shown in FIG. 10;
FIG. 17 is a schematic view of the second mating member of FIG. 10 at a different angle;
FIG. 18 is a schematic view of the lift mechanism of FIG. 9 at another angle;
FIG. 19 is a schematic partial cross-sectional view of the camera module body of FIG. 4 taken along line C-C;
FIG. 20 is an exploded view of the lens assembly shown in FIG. 5;
fig. 21 is a partially exploded schematic view of the lens motor shown in fig. 20;
FIG. 22 is a schematic view of the base shown in FIG. 21 at another angle;
FIG. 23 is a schematic view of the mounting bracket of FIG. 21 at another angle;
FIG. 24 is a schematic view of the mobile gantry shown in FIG. 21 at a different angle;
fig. 25 is a partial sectional schematic view of the lens motor shown in fig. 20;
FIG. 26 is a schematic partial cross-sectional view of the lens assembly shown in FIG. 5;
fig. 27 is a partial structural schematic view of the lens motor shown in fig. 20;
fig. 28 is an exploded schematic view of the second lens barrel shown in fig. 20;
FIG. 29 is an exploded schematic view of the coupling mechanism shown in FIG. 20;
FIG. 30 is a schematic partial cross-sectional view of the lens assembly shown in FIG. 5;
FIG. 31 is a schematic partial cross-sectional view of the lens assembly shown in FIG. 5;
FIG. 32 is a schematic partial cross-sectional view of the lens assembly shown in FIG. 5;
FIG. 33 is a schematic view of the cover retainer shown in FIG. 20 at a different angle;
FIG. 34 is a schematic partial cross-sectional view of the camera module of FIG. 3 taken along line D-D;
FIG. 35 is a schematic partial cross-sectional view of the camera module of FIG. 34 in an intermediate position;
fig. 36 is a schematic partial cross-sectional view of the camera module of fig. 34 in an activated position.
Detailed Description
The embodiments of the present application will be described below with reference to the drawings.
In the description of the embodiments of the present application, it should be noted that the term "connected" is to be interpreted broadly, unless explicitly stated or limited otherwise, and for example, "connected" may or may not be detachably connected; may be directly connected or may be indirectly connected through an intermediate. The term "fixedly connected" means that they are connected to each other and their relative positional relationship is not changed after the connection. "rotationally coupled" means coupled to each other and capable of relative rotation after being coupled. "slidably connected" means connected to each other and capable of sliding relative to each other after being connected. The directional terms used in the embodiments of the present application, such as "top," "bottom," "inner," "outer," etc., are used solely in reference to the orientation of the figures, and thus are used for better and clearer illustration and understanding of the embodiments of the present application, rather than to indicate or imply that the device or element so referred to must be constructed and operated in a particular orientation and, therefore, should not be taken as limiting the embodiments of the present application. "plurality" means at least two.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present disclosure. The electronic device 100 may be a device having an image capturing function, such as a mobile phone, a tablet personal computer (tablet personal computer), a laptop computer (laptop computer), a Personal Digital Assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented Reality (AR) glasses, an AR helmet, virtual Reality (VR) glasses, or a VR helmet. The electronic device 100 of the embodiment shown in fig. 1 is illustrated as a mobile phone.
Referring to fig. 1 and fig. 2, fig. 2 isbase:Sub>A partial cross-sectional view of the electronic device 100 shown in fig. 1 atbase:Sub>A linebase:Sub>A-base:Sub>A. The electronic device 100 includes a housing 10, a screen 20, a host circuit board 30, and a camera module 40. It should be noted that fig. 1, fig. 2 and the related drawings below only schematically show some components included in the electronic device 100, and the actual shape, the actual size, the actual position and the actual configuration of the components are not limited by fig. 1, fig. 2 and the following drawings. In addition, since the host circuit board 30 and the camera module 40 are internal structures of the electronic apparatus 100, fig. 1 schematically shows the host circuit board 30 and the camera module 40 by dotted lines. In other embodiments, when the electronic device 100 is a device of some other form, the electronic device 100 may not include the screen 20 and the host circuit board 30.
Illustratively, the housing 10 includes a host bezel 11 and a back cover 12. The rear cover 12 is fixedly connected to one side of the main frame 11. The screen 20 is fixed on the side of the host frame 11 far away from the back cover 12. The screen 20, the host bezel 11, and the back cover 12 may collectively enclose the interior of the electronic device 100. The interior of the electronic device 100 may be used to house devices of the electronic device 100, such as a battery, a receiver, or a microphone. Among other things, the screen 20 may be used to display images and the like. The screen 20 may be a flat screen or a curved screen. The display screen of the screen 20 may be an organic light-emitting diode (OLED) display screen, an active matrix organic light-emitting diode (AMOLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a Liquid Crystal Display (LCD) or the like.
Referring to fig. 1 and fig. 2 again, the host circuit board 30 is fixed inside the electronic device 100. The host circuit board 30 may be provided with a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Universal Flash Storage (UFS), or other chips.
The imaging module 40 is provided inside the electronic apparatus 100. The camera module 40 can be used to collect ambient light outside the electronic device 100. The camera module 40 may be a rear camera module or a front camera module. The camera module 40 is electrically connected to the host circuit board 30. Thus, the camera module 40 and the host circuit board 30 can transmit signals to each other.
Illustratively, the rear cover 12 is provided with a mounting hole 13. The mounting holes 13 penetrate through opposite surfaces of the rear cover 12. The mounting hole 13 may communicate the inside of the electronic apparatus 100 to the outside of the electronic apparatus 100. Part of the camera module 40 may protrude outside the electronic apparatus 100 through the mounting hole 13. The camera module 40 can be fixedly connected with the hole wall of the mounting hole 13.
In the present embodiment, the image pickup module 40 has two states, one is in an operating state and the other is in a non-operating state (also referred to as a stop state). The operating state of the camera module 40 may be a process from the start of shooting to the end of shooting of the camera module 40. The non-operating state of the camera module 40 may be a state after the camera module 40 finishes shooting or a state before shooting is started. It is understood that, when the camera module 40 is in the non-operating state, the thickness of the camera module 40 in the Z-axis direction is a first thickness. When the camera module 40 is in the operating state, the thickness of the camera module 40 in the Z-axis direction is a second thickness. Wherein the first thickness is less than the second thickness. In this way, in the present embodiment, by additionally adding a state of the image pickup module 40 (i.e., a non-operating state of the image pickup module 40), the thickness of the image pickup module 40 in the Z-axis direction can be significantly reduced, and the thin design of the image pickup module 40 can be realized. Specifically, how to add a state of the camera module 40 by the related mechanical structure will be described in detail below with reference to the related drawings.
In the present embodiment, when the camera module 40 is in the operating state, the camera module 40 has an activated position. When the camera module 40 is in the start position, the camera module 40 can start shooting. When the camera module 40 is in the non-operating state, the camera module 40 has a stop position. When the camera module 40 is in the stop position, at least some of the components (some or all of the components) of the camera module 40 are in an inoperative state (for example, some of the moving mechanisms of the camera module 40 stop moving). In addition, when the camera module 40 is in the non-operating state, the camera module 40 also has an intermediate position. The intermediate position of the camera module 40 may be a position of the camera module 40 between the start position and the stop position.
Hereinafter, a description will be given taking as an example a structure where the image pickup module 40 is at the stop position.
Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of the camera module 40 of the electronic device 100 shown in fig. 1. Fig. 4 is a partially exploded schematic view of the camera module 40 shown in fig. 3. The camera module 40 includes a camera module main body 40a and a lens mount 40b. The lens decoration 40b is annular. The lens garnish 40b is fixedly attached to the camera module body 40a at its outer periphery. Part of the camera module body 40a is located inside the lens garnish 40b.
As shown in fig. 2, the lens garnish 40b is also fixedly attached to the inner surface of the rear cover 12 at its outer periphery. Part of the lens ornament 40b protrudes outside the electronic apparatus 100 through the mounting hole 13 of the rear cover 12. Illustratively, by providing a sealant between the outer periphery of the lens decoration 40b and the inner side of the rear cover 12, water or dust outside the electronic device 100 is prevented from entering the inside of the electronic device 100 through a gap between the lens decoration 40b and the rear cover 12.
Referring to fig. 5, fig. 5 is a partially exploded view of the camera module body 40a shown in fig. 4. The camera module main body 40a includes a module circuit board 41, a module frame 42, a photosensitive chip 43, a module support 44, an optical filter 45, a driving device 46, a lens assembly 47, a first sealing ring 48a, a second sealing ring 48b, and a waterproof silicone sleeve 49. Among them, the photosensitive chip 43 is also referred to as an image sensor, or a photosensitive element. The photosensitive chip 43 is used for collecting ambient light and converting image information carried by the ambient light into an electrical signal.
Referring to fig. 6 in conjunction with fig. 5, fig. 6 is a schematic partial structure view of the camera module main body 40a shown in fig. 4. The module frame 42 includes a first frame portion 421 and a second frame portion 422. The second frame portion 422 is fixedly connected to the top portion of the first frame portion 421. For example, a part of the first frame portion 421 has a circular ring shape, and the other part has a polygonal shape. The second frame portion 422 has an annular shape.
Wherein, the first frame portion 421 has a ventilation hole 424. The air holes 424 may communicate the inside of the module bezel 42 to the outside of the module bezel 42. The number of the air holes 424 may be one or more. When the number of the air holes 424 is plural, the plural air holes 424 are arranged at intervals. The number of the air holes 424 in this embodiment is three. It is understood that the vents 424 may balance the air pressure inside the module bezel 42 with the air pressure outside the module bezel 42.
In addition, the first frame portion 421 may be provided with a dust screen. The dust screen covers the airing holes 424. Thus, dust on the outside of the module bezel 42 does not easily enter the inside of the module bezel 42 through the ventilation holes 424.
Referring to fig. 6 again, the first frame portion 421 of the module frame 42 is fixedly connected to the module circuit board 41. The first frame portion 421 of the module frame 42 and the module circuit board 41 may enclose a first space 411. For example, the first frame portion 421 of the module frame 42 may be fixedly connected to the module circuit board 41 by bonding or the like.
In addition, the photosensitive chip 43 is fixed on the module circuit board 41 and electrically connected to the module circuit board 41. The photosensitive chip 43 is located in the first space 411. At this time, the photosensitive chip 43 and the module circuit board 41 can transmit signals to each other.
Illustratively, the module circuit board 41 is provided with a sink 412. The photo chip 43 is located in the sink 412. Thus, the imaging module 40 is less likely to be increased in thickness due to the photosensitive chip 43 and the module circuit board 41 being stacked on each other.
Referring to fig. 7 and 8, fig. 7 is a partial schematic structural view of the camera module main body 40a shown in fig. 4. Fig. 8 is a partial cross-sectional view of a portion of the camera module body 40a shown in fig. 7 at line B-B. The module holder 44 is fixedly attached to the module circuit board 41. The module holder 44 is located on the same side of the module circuit board 41 as the photosensitive chip 43. At least a portion of the module holder 44 is located in the first space 411.
In addition, the module holder 44 is provided with a light hole 441. The filter 45 is fixedly connected to the module holder 44 and located in the light hole 441. The optical filter 45 is also disposed opposite to the photosensitive chip 43. The filter 45 may be used to filter infrared light or blue light of ambient light, so as to ensure that the photosensitive chip 43 has better imaging quality. In other embodiments, when the image capturing module 40 has other structures, the arrangement of the module holder 44 and the filter 45 can be flexibly set according to the requirement. In addition, in some configurations of the camera module 40, the camera module 40 may not include the module holder 44 and the filter 45.
Referring to fig. 9, fig. 9 is an exploded view of the driving device 46 shown in fig. 5. The driving device 46 includes a driving mechanism 46a and a lifting mechanism 46b. The driving mechanism 46a is used for driving the lifting mechanism 46b to work. The drive mechanism 46a has an output 460a. When the drive mechanism 46a is energized, the output 460a of the drive mechanism 46a rotates. Illustratively, the drive mechanism 46a may be a stepper motor. The output 460a of the drive mechanism 46a is a gear.
Referring to fig. 10 in conjunction with fig. 9, fig. 10 is an exploded view of the lifting mechanism 46b shown in fig. 9. The lifting mechanism 46b includes a limiting member 461, a first fitting member 462 and a second fitting member 463.
Referring to fig. 11, fig. 11 is a schematic structural view of the position-limiting element 461 shown in fig. 10 at different angles. The limiting member 461 is annular. The stop 461 includes oppositely disposed inner and outer walls 4611 and 4612 and oppositely disposed top and bottom walls 4613 and 4614. Top wall 4613 and bottom wall 4614 are connected between inner wall 4611 and outer wall 4612. The inner wall 4611 of the stop 461 is stepped. The inner wall 4611 of the limiting member 461 has a limiting surface 4615.
In addition, the limiting member 461 has a notch 4614. The notch 4614 extends through the inner wall 4611 of the limiting member 461, the outer wall 4612 of the limiting member 461 and the bottom wall 4614 of the limiting member 461.
Referring to fig. 10 again, the first fitting element 462 is an internal threaded cylinder structure, that is, the first fitting element 462 is a cylinder structure, and the inner side of the first fitting element 462 has a threaded structure. The outer surface of the first fitting 462 has a gear portion 4621. The gear portion 4621 is annular. In the present embodiment, description will be made taking as an example that the screw structure of the first fitting element 462 extends spirally in the Z-axis direction. The gear portion 4621 of the first fitting 462 can be engaged with the output 460a of the drive mechanism 46a (see fig. 9). Thus, when the driving mechanism 46a is energized, the output end 460a (see fig. 9) of the driving mechanism 46a rotates, and the first engaging element 462 rotates.
Referring to fig. 12, fig. 12 is an exploded view of the second fitting element 463 shown in fig. 10. The second mating piece 463 includes a first structural member 4631, a second structural member 4632, a third structural member 4633 and a cushion 4634. The buffer 4634 may be a spring, a resilient sheet, rubber, silicone, or other elastic component. In this embodiment, the buffer 4634 is described by taking a spring as an example. The number of the cushion 4634 may be one or more. In the present embodiment, the number of the cushion members 4634 is four.
Referring to fig. 13 in conjunction with fig. 12, fig. 13 is a schematic structural view of the first structural member 4631 shown in fig. 12 at another angle. The first structural member 4631 is an externally threaded tubular structure, that is, the first structural member 4631 is a tubular structure, and the outer side of the first structural member 4631 has a threaded structure. In this embodiment, description will be made taking as an example that the thread structure of the first structural member 4631 extends spirally in the Z-axis direction.
In addition, the inner surface of the first structural member 4631 has a first boss 4631a. The number of the first bosses 4631a may be one or more. When the number of the first bosses 4631a is plural, the plural first bosses 4631a are provided at intervals. In the present embodiment, the number of the first bosses 4631a is two. In other embodiments, the first boss 4631a may also be disposed on an outer surface of the first structural member 4631.
Illustratively, the first boss 4631a is provided with a first spacing groove 4631b. The number of the first catching grooves 4631b may be one or more. When the number of the first limiting grooves 4631b is plural, the plural first limiting grooves 4631b are provided at intervals. In this embodiment, each of the first bosses 4631a is provided with two first limiting grooves 4631b. In other embodiments, the first boss 4631a may not be provided with the first limiting groove 4631b.
Referring to fig. 14 in conjunction with fig. 12, fig. 14 is a schematic structural view of the second structural member 4632 shown in fig. 12 at different angles. The second structural member 4632 is in a ring configuration. The inner surface of the second structural member 4632 has a second boss 4632a. The number of the second bosses 4632a may be one or more. When the number of the second bosses 4632a is plural, the plural second bosses 4632a are provided at intervals. In the present embodiment, the number of the second bosses 4632a is two, that is, the same as the number of the first bosses 4631a. The shape of the second boss 4632a may be adapted to the shape of the first boss 4631a. In other embodiments, the second boss 4632a may also be disposed on an outer surface of the second structural member 4632.
The second structural member 4632 has a position-limiting side hole 4632b. Wherein, spacing side 4632b forms the opening in the internal surface of second structure 4632, the surface of second structure 4632 and the top surface of second structure 4632. The number of the limit side holes 4632b can be one or more. When the number of the limiting side holes 4632b is multiple, the multiple limiting side holes 4632b are arranged at intervals. In this embodiment, the number of the limit side holes 4632b is two.
Illustratively, the second boss 4632a is provided with a second spacing slot 4632c. The number of the second limiting grooves 4632c may be one or more. When the number of the second limiting grooves 4632c is plural, the plural second limiting grooves 4632c are provided at intervals. In this embodiment, two second limiting grooves 4632c are provided on each second boss 4632a. In other embodiments, second boss 4632a may not be provided with second retaining groove 4632c.
Referring to fig. 15 in conjunction with fig. 13 and 14, fig. 15 is a partial schematic structural view of the second mating element 463 shown in fig. 10. The second structural member 4632 is disposed inside the first structural member 4631. The second boss 4632a of the second structural member 4632 is disposed opposite to the first boss 4631a of the first structural member 4631. The plurality of first limiting grooves 4631b and the plurality of second limiting grooves 4632c are disposed opposite to each other in a one-to-one correspondence. At this time, one first limiting groove 4631b is disposed opposite to one second limiting groove 4632c.
In addition, the cushion 4634 has one end connected to the first boss 4631a of the first structural member 4631 and the other end connected to the second boss 4632a of the second structural member 4632. Thus, the second structural member 4632 is resiliently coupled to the first structural member 4631 via the cushion 4634.
Referring to fig. 16 in conjunction with fig. 14, fig. 16 is a schematic partial structure view of the second fitting element 463 shown in fig. 10. A portion of the buffer 4634 is disposed in the first position-limiting groove 4631b of the first boss 4631a. A portion of the buffering member 4634 is disposed in the second limiting groove 4632c of the second boss 4632a. Thus, the connecting area of the cushion 4634 and the first boss 4631a and the second boss 4632a is larger, and the connection of the cushion 4634 and the first boss 4631a and the second boss 4632a is more stable.
Illustratively, the buffer 4634 may be in a compressed state. Thus, the buffer 4634 may exert a spring force on the second structural member 4632 in the Z-axis direction.
Referring again to FIG. 12, the third connecting member 4633 has a ring structure. The inner surface of the third junction member 4633 has a position restricting projection 4633a. The number of the limiting protrusions 4633a may be one or more. When the number of the limiting protrusions 4633a is plural, the plurality of limiting protrusions 4633a are disposed at intervals. In this embodiment, the number of the limit projections 4633a is two.
Referring to fig. 17, fig. 17 is a schematic structural diagram of the second mating element 463 shown in fig. 10 at a different angle. Third structural member 4633 is fixedly coupled to the top of first structural member 4631. In addition, the limit projection 4633a of the third structural member 4633 is disposed in the limit lateral hole 4632b of the second structural member 4632. The limit projection 4633a of the third structural member 4633 can slide in the limit side hole 4632b of the second structural member 4632 in the Z-axis direction. At this point, second structural member 4632 is slidably coupled to third structural member 4633. In addition, the limiting protrusions 4633a of the third structural member 4633 are matched with the limiting side holes 4632b of the second structural member 4632, so that the second structural member 4632 is prevented from rotating on the X-Y plane relative to the first structural member 4631, and the second structural member 4632 is guaranteed to have better stability on the X-Y plane.
Referring to fig. 18 and 19, fig. 18 is a schematic structural view of the lifting mechanism 46b shown in fig. 9 at another angle. Fig. 19 is a partial sectional view of the camera module body 40a shown in fig. 4 taken along the line C-C. The second fitting element 463 is provided inside the first fitting element 462. The first structure 4631 of the second engagement element 463 is screwed to the first engagement element 462, i.e., the external thread of the first structure 4631 of the second engagement element 463 and the internal thread of the first engagement element 462 form a screw connection. Thus, when the first engaging element 462 is rotated, the first structural member 4631 of the second engaging element 463 can move in the Z-axis direction (including the positive and negative directions of the Z-axis) relative to the first engaging element 462. Since the second structural member 4632 is elastically connected to the first structural member 4631 through the buffer 4634, and the third structural member 4633 is fixedly connected to the first structural member 4631, at this time, the second structural member 4632 and the third structural member 4633 can also move along the Z-axis direction along with the first structural member 4631.
In addition, the first boss 4631a is located between the second boss 4632a and the module circuit board 44. The third structural member 4633 is located on a side of the first structural member 4631 away from the modular circuit board 44.
In addition, the bottom wall 4614 of the limiting member 461 is fixedly connected to the module bracket 44. For example, the bottom wall 4614 of the limiting member 461 can be fixedly connected to the module bracket 44 by glue, screw locking, or the like. The first fitting element 462 is disposed inside the limiting element 461. The gear portion 4621 of the first fitting element 462 is clamped between the module bracket 44 and the position-limiting surface 4615 of the position-limiting element 461. Thus, the first engaging member 462 is restricted from moving in the Z-axis direction by the engagement of the module holder 44 with the 4615 of the stopper 461. In addition, the first fitting element 462 is rotatably connected to the limiting element 461 and the module bracket 44.
For example, the gear portion 4621 of the first fitting element 462 may be attached to the position-limiting surface 4615 of the position-limiting element 461. The bottom surface of the gear portion 4621 of the first fitting 462 may be engaged with the module bracket 44. At this time, the connection between the first fitting element 462, the module bracket 44 and the limiting element 461 is more stable.
For example, the inner wall 4611 (see fig. 11) of the limiting member 461 may be engaged with the outer side surface of the gear portion 4621 of the first fitting member 462 to prevent the first fitting member 462 from shifting in the X-Y plane. In addition, the length of the engagement surface between the inner wall 4611 (see fig. 11) of the stopper 461 and the outer side surface of the gear portion 4621 of the first fitting element 462 can be increased, thereby preventing the first fitting element 462 from being inclined.
Referring to fig. 18 and 19 again, the driving mechanism 46a is disposed in the first space 411. The driving mechanism 46a is fixedly connected to the module circuit board 41 and electrically connected to the module circuit board 41. Thus, the driving mechanism 46a can be energized through the module circuit board 41 to put the driving mechanism 46a in an operating state.
In addition, the output end 460a (see fig. 9) of the driving mechanism 46a can pass through the notch 4615 of the limiting member 461 and engage with the gear portion 4621 of the first fitting member 462 (see fig. 18). Thus, when the output end 460a (see fig. 9) of the driving mechanism 46a rotates, the first engaging element 462 rotates in the Z-axis direction. Since the first engaging element 462 is threadedly coupled to the first structure 4631 of the second engaging element 463, the first structure 4631 of the second engaging element 463 may be moved in the Z-axis direction. Since the second structural member 4632 is elastically connected to the first structural member 4631 through the cushion 4634, the third structural member 4633 is fixedly connected to the first structural member 4631, and the second structural member 4632 and the third structural member 4633 can also move along the Z-axis direction along with the first structural member 4631.
In one embodiment, the lift mechanism 46b further includes a hall sensor and a mechanism magnet. The hall sensor is fixedly attached to the module support 44. The mechanism magnet is fixedly attached to the first structural member 4631, the second structural member 4632 or the third structural member 4633 of the second mating member 463. The Hall sensor is used for detecting the magnetic field intensity of the mechanism magnet at different positions. In this way, when the second engaging element 463 moves in the Z-axis direction relative to the first engaging element 462, the amount of displacement of the second engaging element 463 moving in the Z-axis direction is accurately controlled by the mutual engagement of the hall sensor and the mechanism magnet. Illustratively, the hall sensor can be electrically connected to the module circuit board 41 through traces on the module bracket 44 by providing the traces on the module bracket 44.
Referring to fig. 20, fig. 20 is an exploded view of the lens assembly 47 shown in fig. 5. The lens assembly 47 includes a lens motor 471, a first lens 472, a second lens 473, a coupling mechanism 474, an iris 475, a cover holder 476, a lens cover 477, and a lens housing 478. The first lens 472 is disposed on the lens motor 471. The lens motor 471 is used to drive the first lens 472 to move along an optical axis direction (i.e., a Z-axis direction, wherein the Z-axis direction includes a Z-axis positive direction and a Z-axis negative direction) of the camera module 40, so as to realize Auto Focus (AF) of the first lens 472. The lens motor 471 may be a voice coil motor, an SMA (shape memory alloy) motor, or a motor with other structure. It will be appreciated that the SMA motor may be one which utilises the contraction of SMA wire to generate the driving force. The SMA wire may be a nickel titanium alloy. Further, SMA is a generic term for a class of metals having a shape memory effect. In this embodiment, the lens motor 471 is described by taking a voice coil motor as an example.
Referring to fig. 21, fig. 21 is a partially exploded view of the lens motor 471 shown in fig. 20. The lens motor 471 includes a mount 4711, a first sliding bar 4712a, a second sliding bar 4712b, a fixed bracket 4713, a moving bracket 4714, a first coil 4715a, a second coil 4715b, a first motor magnet 4716a, a second motor magnet 4716b, a motor circuit board 4717, and a plurality of conductive plates 4718.
Referring to fig. 22, fig. 22 is a schematic structural view of the base 4711 shown in fig. 21 at another angle. The seat 4711 is annular. The seat has a first side hole 4711b and a second side hole 4711c disposed at intervals. The first side hole 4711b and the second side hole 4711c are oppositely disposed. In addition, the base plate has a first fixing hole 4711d and a second fixing hole 4711e which are arranged at intervals.
Referring to fig. 23, fig. 23 is a schematic structural view of the fixing bracket 4713 shown in fig. 21 at another angle. The fixing bracket 4713 has a ring shape. The fixing bracket 4713 has a third fixing hole 4713a and a fourth fixing hole 4713b arranged at intervals.
Referring to fig. 24, fig. 24 is a schematic structural view of the movable support 4714 shown in fig. 21 at different angles. The moving rack 4714 has a ring shape. The moving rack 4714 is further provided with a first guide hole 4714a and a second guide hole 4714b which are disposed at intervals. The moving rack 4714 is provided with a first slide hole 4714c and a second slide hole 4714d arranged at intervals. First and second guide holes 4714a and 4714b are also provided at intervals from the first and second slide holes 4714c and 4714d. In addition, the moving bracket 4714 is also provided with a first mounting groove 4714e and a second mounting groove 4714f that are disposed facing away from each other.
Illustratively, the shape of the first slide hole 4714c may be circular, racetrack-shaped, or U-shaped. The second slide hole 4714d may be a V-shaped hole.
Referring to fig. 25, fig. 25 is a partial cross-sectional view of the lens motor 471 shown in fig. 20. The fixed support 4713 is positioned on top of the seat 4711. One end of the first sliding bar 4712a is fixedly connected to the base 4711 and the other end is fixedly connected to the fixing bracket 4713. The present embodiment will be described taking as an example the direction in which the first slider 4712a extends in the length direction as the Z-axis direction. Illustratively, one end of the first sliding bar 4712a is inserted into the first fixing hole 4711d of the base 4711, and the other end is inserted into the third fixing hole 4713a of the fixing bracket 4713. In one embodiment, one end of the first slide bar 4712a may be interference fit with the first securing hole 4711d of the base 4711. The other end of the first sliding bar 4712a may be interference fit with a third fixing hole 4713a of the fixing bracket 4713. In other embodiments, one end of the first sliding bar 4712a may be fixedly coupled to the inside of the first fixing hole 4711d of the base 4711 by welding, bonding, or the like. The other end of the first sliding bar 4712a may also be fixedly connected to the inside of the third fixing hole 4713a of the fixing bracket 4713 by welding, bonding, or the like.
In addition, one end of the second sliding bar 4712b is fixedly connected to the base 4711, and the other end is fixedly connected to the fixing bracket 4713. The present embodiment will be described taking as an example the direction in which the second plunger 4712b extends lengthwise as the Z-axis direction. Illustratively, one end of the first sliding bar 4712a is inserted into the second fixing hole 4711e of the base 4711, and the other end is inserted into the fourth fixing hole 4713b of the fixing bracket 4713. In one embodiment, one end of the second sliding bar 4712b may be interference fit with the second fixing hole 4711e of the base 4711. The other end of the second sliding bar 4712b may be interference fitted with a fourth fixing hole 4713b of the fixing bracket 4713. In other embodiments, one end of the second sliding bar 4712b may be fixedly coupled to the inside of the second fixing hole 4711e of the base 4711 by welding, bonding, or the like. The other end of the second sliding bar 4712b may also be fixedly connected to the inside of the fourth fixing hole 4713b of the fixing bracket 4713 by welding, bonding, or the like.
The moving rack 4714 is provided inside the pedestal 4711. The first slide bar 4712a passes through a first slide hole 4714c of the moving bracket 4714. The second slide bar 4712b passes through a second slide aperture 4714d of the moving bracket 4714. The moving rack 4714 can slide relative to the first slide bar 4712a and the second slide bar 4712 b.
Illustratively, the base 4711 may be fixedly connected with a magnetically conductive plate. The moving rack 4714 is provided with a magnet. The magnet and the magnetic conductive sheet can generate magnetic force. The magnetic force direction that the magnetic conduction piece received is the direction that the magnetic conduction piece faced the magnet. The moving bracket 4714 is also subjected to the pressing force of the magnet. In addition, since the second sliding hole 4714d is a V-shaped hole, the second sliding bar 4712b can be tightly fitted with the second sliding hole 4714d by being pressed by the moving bracket 4714.
In other embodiments, a cushion (not shown) may be disposed between the fixed bracket 4713 and the moving bracket 4714. The cushion pad is fixedly coupled to the fixed bracket 4713 or the moving bracket 4714. The cushion pad may buffer the collision of the moving bracket 4714 with the fixed bracket 4713 during sliding.
Referring to fig. 26, fig. 26 is a partial cross-sectional view of the lens assembly 47 shown in fig. 5. The first motor magnet 4716a and the second motor magnet 4716b are fixedly attached to the moving bracket 4714. The first motor magnet 4716a and the second motor magnet 4716b are disposed opposite to each other. Illustratively, the first motor magnet 4716a is fixedly attached within a first mounting slot 4714e of the mobile bracket 4714 (the first mounting slot 4714e is illustrated from a different perspective in fig. 24). The second motor magnet 4716b is fixedly attached within a second mounting slot 4714f of the mobile bracket 4714 (the first mounting slot 4714e is illustrated from a different perspective in fig. 24).
Referring to fig. 26 in combination with fig. 25, the first coil 4715a and the second coil 4715b are fixedly connected to the base 4711. The first coil 4715a is disposed opposite to the first motor magnet 4716 a. The second coil 4715b is provided to face the second motor magnet 4716 b. It is understood that when a signal is applied to the first coil 4715a and the second coil 4715b, the first motor magnet 4716a may be engaged with the first coil 4715a and the second motor magnet 4716b may be engaged with the second coil 4715b to push the moving bracket 4714 to slide relative to the first bar 4712a and the second bar 4712 b.
In other embodiments, the positions of the first motor magnet 4716a and the first coil 4715a may be reversed. The positions of the second motor magnet 4716b and the second coil 4715b may be reversed.
In addition, the motor circuit board 4717 is fixedly connected to the base 4711. The first coil 4715a and the second coil 4715b are electrically connected to a motor circuit board 4717. Illustratively, the traces may electrically connect the first coil 4715a to the motor circuit board 4717 or the second coil 4715b to the motor circuit board 4717 by providing the traces on the mount 4711. In addition, the motor circuit board 4717 may be electrically connected to the module circuit board 41 through a module bracket 44 (see fig. 19). Illustratively, the module bracket 44 is provided with traces or a flexible circuit board. The motor circuit board 4717 is provided with a trace or a flexible circuit board electrically connected to the module circuit board 41 through the module bracket 44.
Referring again to fig. 26, the lens motor 471 may further include a hall sensor 4719. The hall sensor 4719 is fixedly attached to the motor circuit board 4717 and is electrically connected to the motor circuit board 4717. The hall sensor 4719 is used to detect the magnetic field intensity of the first motor magnet 4716a or the second motor magnet 4716b at different positions. In the present embodiment, the hall sensor 4719 is located in a region surrounded by the first coil 4715 a. The hall sensor 4719 is used to detect the magnetic field intensity of the first motor magnet 4716a at different positions. In other embodiments, the number of hall sensors 4719 may also be two. One for detecting the magnetic field strength of the first motor magnet 4716a at different positions and the other for detecting the magnetic field strength of the second motor magnet 4716b at different positions. It can be appreciated that the hall sensor 4719 and the first motor magnet 4716a or the second motor magnet 4716b cooperate with each other to achieve accurate control of the amount of displacement of the moving support 4714 that slides in the Z-axis direction.
In other embodiments, the lens motor 471 may further include an IC chip. The IC chip may be electrically connected to the first coil 4715a and the second coil 4715b for controlling the operation of the first coil 4715a and the second coil 4715 b. In addition, the IC chip also has a function of a hall sensor, that is, the IC chip can be used to detect the magnetic field intensity of the first motor magnet 4716a or the second motor magnet 4716b at different positions. Therefore, the displacement of the movable support 4714 sliding along the Z-axis direction can be accurately controlled by the cooperation of the IC chip and the first motor magnet 4716a or the second motor magnet 4716 b.
Referring to fig. 26 again, and as shown in fig. 25, the first lens 472 includes a first barrel 4721 and a first lens 4722. The number of the first lenses 4722 may be one or more. When the number of the first eyeglasses 4722 is plural, the plural first eyeglasses 4722 are arranged in order in the Z-axis direction. The number of the first eyeglasses 4722 of the present embodiment is six. The first lens 4722 is fixedly connected to the inside of the first barrel 4721.
Further, the first lens 472 is located inside the moving rack 4714. The first barrel 4721 of the first lens 472 is fixedly attached to the movable bracket 4714. When the moving bracket 4714 slides relative to the first and second slide bars 4712a and 4712b, the first lens 472 may slide relative to the first and second slide bars 4712a and 4712b with the moving bracket 4714, i.e., the first lens 472 may move in the Z-axis direction with the moving bracket 4714. In this way, the first lens 472 can realize a focusing function by being driven by the lens motor 471.
Referring to fig. 26 again, the variable aperture 475 is located on the light incident side of the first lens 472, and the variable aperture 475 may be fixedly connected to the first lens 472. Variable aperture 475 may be used to increase or decrease the amount of light flux into first lens 472. Illustratively, when the electronic apparatus 100 photographs in a dark light condition, the aperture of the iris diaphragm 475 may be enlarged, and at this time, the amount of light entering the first lens 472 increases. When the electronic apparatus 100 photographs in a sufficiently light condition, the aperture of the variable aperture 475 may be adjusted small, and at this time, the amount of light entering the first lens 472 decreases.
In the present embodiment, by fixing the variable diaphragm 475 to the first lens 472, the variable diaphragm 475 can also move in the Z-axis direction along with the first lens 472 when the lens motor 471 drives the first lens 472 to move in the Z-axis direction. At this time, the position of the variable aperture 475 relative to the lens does not change while the first lens 472 moves in the Z-axis direction. In this way, when the position of the aperture hole of the variable aperture 475 with respect to the first lens 472 is not changed without considering other factors that affect the size of the angle of view of the first lens 472, the angle of view of the first lens 472 is not changed.
Referring to fig. 26 again in conjunction with fig. 20, the lens housing 478 is ring-shaped. The lens housing 478 is fixedly attached to the mount 4711. The lens housing 478 may be disposed around a portion of the lens motor 471, the first lens 472, and the iris 475. The lens housing 478 may be used to protect the lens motor 471, the first lens 472, and the iris 475. The lens motor 471 can be fixedly connected to an outer side of the lens housing 478.
Illustratively, the lens housing 478 may also be provided with a cushion pad. The cushion pad may cushion the collision of the moving rack 4714 with the lens housing 478 during sliding.
Referring to fig. 27 in conjunction with fig. 26, fig. 27 is a partial schematic structural diagram of the lens motor 471 shown in fig. 20. Conductive plates 4718. One end of the conductive plate 4718 is fixedly connected to the movable support 4714, and the other end is fixedly connected to the base 4711. The conductive plate 4718 may be used to electrically connect the iris diaphragm 475 to the motor circuit board 4717. Illustratively, by providing a first trace on the moving support 4714, the first trace is electrically connected to the conductive sheet 4718 and the variable aperture 475. In addition, by providing the second traces on the base 4711, the second traces can electrically connect the conductive plate 4718 to the motor circuit board 4717. Thus, the iris 475 can be electrically connected to the motor circuit board 4717 through the first trace, the conductive plate 4718, and the second trace.
Referring to fig. 28, fig. 28 is an exploded view of the second lens 473 shown in fig. 20. The second lens 473 includes a second barrel 473a and a second lens 473b. The number of the second lenses 473b may be one or more. When the number of the second lenses 473b is multiple, the multiple second lenses 473b are arranged in order in the Z-axis direction. The number of the second lenses 473b in this embodiment is one. The second lens 473b is fixedly connected to the inside of the second barrel 473 a.
The second barrel 473a includes a main body 4731, a first stopper 4732, and a second stopper 4733. The first stopper 4732 and the second stopper 4733 are connected to both sides of the body 4731. The body portion 4731 has a ring shape. The second lens 473b is fixedly attached to the inside of the body portion 4731. The first position-limiting portion 4732 is provided with a third guide hole 4734. The second stopper 4733 is provided with a fourth guide hole 4735.
Illustratively, the third guide holes 4734 may be V-shaped holes. The shape of the fourth guide hole 4735 may be circular, U-shaped, or racetrack shaped.
Referring to fig. 29, fig. 29 is an exploded view of the connecting mechanism 474 shown in fig. 20. The connecting mechanism 474 includes a first guide bar 4741, a second guide bar 4742, a first resilient member 4743, a second resilient member 4744, a first limit bracket 4745, a second limit bracket 4746, a first magnet 4747, and a second magnet 4748.
Wherein the first guide bar 4741 includes a first fixing portion 4741a and a first guide portion 4741b. The first guide 4741b includes a first end and a second end. A first end of the first guide portion 4741b is fixedly connected to the first fixing portion 4741a.
The second guide bar 4742 includes a second fixing portion 4742a and a second guide portion 4742b. The second guide portion 4742b includes a first end and a second end. A first end of the second guide portion 4742b is fixedly connected to the second fixing portion 4742a.
The first spacing bracket 4745 includes a first section 4745a, a second section 4745b, and a third section 4745c that are connected in series, i.e., the second section 4745b is connected between the first section 4745a and the third section 4745c. The first portion 4745a is connected to the same side of the second portion 4745b as the third portion 4745c. The first and second portions 4745a and 4745b are bent. The second portion 4745b is bent over the third portion 4745c. Illustratively, the first restraint bracket 4745 is U-shaped. In other embodiments, the first retaining bracket 4745 may not include the third portion 4745c.
In this embodiment, the first position restricting holder 4745 is made of a magnetic conductive material. In other embodiments, the material of the first spacing bracket 4745 may also be a non-magnetic material.
In addition, the second retaining bracket 4746 includes a first portion 4746a, a second portion 4746b, and a third portion 4746c that are connected in series, i.e., the second portion 4746b is connected between the first portion 4746a and the third portion 4746c. The first portion 4746a is connected on the same side of the second portion 4746b as the third portion 4746c. The first portion 4746a and the second portion 4746b are formed in a bent shape. The second 4746b and third 4746c portions are formed in a bent shape. Illustratively, the second restraint bracket 4746 is U-shaped. In other embodiments, the second retaining bracket 4746 may not include the third portion 4746c.
In this embodiment, the second position restricting holder 4746 is made of a magnetic conductive material. In other embodiments, the material of the first spacing bracket 4745 may also be a non-magnetically conductive material.
Referring to fig. 30 in conjunction with fig. 29, fig. 30 is a partial sectional view of the lens assembly 47 shown in fig. 5. The second lens 473 is located on the image side of the first lens 472.
Wherein the first fixing portion 4741a of the first guide bar 4741 is fixedly coupled to the inside of the first guide hole 4714a of the moving bracket 4714. The second end of the first guide portion 4741b of the first guide bar 4741 passes through the third guide hole 4734 of the first stopper portion 4732 of the second barrel 473 a. In addition, the first elastic member 4743 is sleeved on the first guide portion 4741b of the first guide rod 4741, and the first elastic member 4743 is connected between the first fixing portion 4741a of the first guide rod 4741 and the first limiting portion 4732 of the second barrel 473 a. The first elastic member 4743 is in a compressed state.
The second fixing portion 4742a of the second guide bar 4742 is fixedly coupled to the inside of the second guide hole 4714b of the moving bracket 4714. A second end of the second guide portion 4742b of the second guide bar 4742 passes through the fourth guide hole 4735 of the second stopper portion 4733 of the second barrel 473 a. In addition, the second elastic member 4744 is sleeved on the second guiding portion 4742b of the second guide bar 4742, and the second elastic member 4744 is connected between the second fixing portion 4742a of the second guide bar 4742 and the second limiting portion 4733 of the second barrel 473 a. The second resilient member 4744 is in a compressed state.
Referring to fig. 31 in conjunction with fig. 30, fig. 31 is a partial cross-sectional view of the lens assembly 47 shown in fig. 5. The second portion 4745b of the first restricting bracket 4745 is located on the side of the first restricting portion 4732 of the second barrel 473a away from the moving bracket 4714, that is, the second portion 4745b of the first restricting bracket 4745 is located on the bottom side of the first restricting portion 4732. Second portion 4745b of first spacing bracket 4745 is fixedly coupled to a second end of first guide portion 4741b of first guide 4741.
The first portion 4745a and the third portion 4745c of the first retaining bracket 4745 are fixedly attached to the mobile bracket 4714. The first portion 4745a and the third portion 4745c of the first position-limiting bracket 4745 are located on both sides of the first position-limiting portion 4732. Illustratively, the mobile support 4714 may be grooved. The first portion 4745a and the third portion 4745c of the first retaining bracket 4745 can be in interference fit with the groove of the mobile bracket 4714. In one embodiment, the first portion 4745a and the third portion 4745c of the first position-limiting support 4745 may also be fixedly attached to the groove of the movable support 4714 by glue dispensing or the like.
The first magnet 4747 is fixedly connected to the first stopper 4732. The first magnet 4747 is positioned between the first guide portion 4741b of the first guide bar 4741 and the first portion 4745a of the first limit bracket 4745. The first magnet 4747 is now disposed opposite the first portion 4745a of the first spacing bracket 4745. It can be appreciated that, because the first position-limiting support 4745 is made of a magnetically conductive material, the first portion 4745a of the first position-limiting support 4745 and the first magnet 4747 can generate a magnetic force. The first magnet 4747 receives a magnetic force in a direction in which the first portion 4745a of the first stopper bracket 4745 faces the first magnet 4747. The first stopper 4732 is also subjected to the pressing force of the first magnet 4747. The first guide bar 4741 can be tightly fitted with the third guide hole 4734 of the first stopper portion 4732 under the pressing force of the first stopper portion 4732.
Illustratively, the third guide holes 4734 (the structure of the third guide holes 4734 is illustrated in fig. 28 from a different angle) are V-shaped holes. The first magnet 4747 is disposed opposite to the middle of the third guide hole 4734. Thus, the first guide bar 4741 can be pressed at the middle of the third guide hole 4734 under the pressing of the first position-limiting portion 4732, and at this time, the first guide bar 4741 can be more closely fitted with the third guide hole 4734 of the first position-limiting portion 4732. The stability of the first guiding bar 4741 and the first limiting portion 4732 is better.
Referring to fig. 32 in conjunction with fig. 30, fig. 32 is a partial cross-sectional view of the lens assembly 47 shown in fig. 5. The second portion 4746b of the second stopper bracket 4746 is located on a side of the second stopper portion 4733 of the second barrel 473a away from the moving bracket 4714, i.e., the second portion 4746b of the second stopper bracket 4746 is located on a bottom side of the second stopper portion 4733. A second portion 4746b of the second spacing bracket 4746 is fixedly coupled to a second end of the second guide portion 4742b of the second guide 4742.
In addition, the first and third portions 4746a and 4746c of the second retaining bracket 4746 are fixedly attached to the moving bracket 4714. Illustratively, the mobile support 4714 may be grooved. The first portion 4746a and the third portion 4746c of the second retaining bracket 4746 can be an interference fit with the groove of the mobile bracket 4714. In one embodiment, the first portion 4746a and the third portion 4746c of the second retaining bracket 4746 can also be fixedly attached to the groove of the movable bracket 4714 by glue dispensing or the like.
The second magnet 4748 is fixedly attached to the second stopper 4733 and is disposed to face the first portion 4746a of the second stopper bracket 4746. It is understood that the first portion 4746a of the second restraint bracket 4746 and the second magnet 4748 may generate a magnetic force due to the second restraint bracket 4746 being a magnetically conductive material. The second magnet 4748 receives a magnetic force in a direction in which the first portion 4746a of the second position-restricting bracket 4746 faces the second magnet 4748. The second stopper 4733 is also subjected to the pressing force of the second magnet 4748. The second guide rods 4742 can be tightly fitted with the fourth guide holes 4735 of the second restricting portion 4733 (the structure of the fourth guide holes 4735 is shown from a different angle in fig. 28) under the pressing of the second restricting portion 4733.
Referring to fig. 33, fig. 33 is a schematic structural view of the cover fixing frame 476 shown in fig. 20 at different angles. The cover plate mount 476 includes a first annular wall 4761, a second annular wall 4762, and a bottom wall 4763. Wherein the bottom wall 4763 has an annular structure. The first annular wall 4761 is fixedly attached to the inner periphery of the bottom wall 4763. The second annular wall 4762 is fixedly attached to the outer periphery of the bottom wall 4763. A space is enclosed between the first annular wall 4761 and the second annular wall 4762. The inside of the first annular wall 4761 encloses the space inside the cover retainer 476.
Referring to fig. 34, fig. 34 is a partial cross-sectional view of the camera module 40 shown in fig. 3 at a D-D line. The first annular wall 4761 of the cover mount 476 is fixedly attached to the second structural member 4632 of the second mating element 463. The second annular wall 4762 of the cover mount 476 is fixedly coupled to the first seal ring 48a (shown in conjunction with FIG. 5). The first seal ring 48a may be disposed opposite to the stopper 461 of the elevating mechanism 46b. At this time, the cover holder 476 is disposed around the first lens 472 and the variable aperture 475. The cover mount 476 is located inside the lens garnish 40b.
The second seal ring 48b (shown in fig. 5) is annular. The second seal ring 48b is fixedly connected to the second frame portion 422 (shown in conjunction with fig. 6) of the module frame 42. In addition, the second seal ring 48b is also fixedly attached to the lens garnish 40b.
Wherein, the waterproof silicone sheath 49 (shown in fig. 5) is ring-shaped. The outer periphery of the waterproof silicone sleeve 49 is fixedly connected to the second seal ring 48b. The inner periphery of the waterproof silicone sleeve 49 is fixedly connected to the first seal ring 48a.
As shown in fig. 2, the first sealing ring 48a, the waterproof silicone sleeve 49, the second sealing ring 48b, and the lens ornament 40b are engaged with each other, so that water or dust outside the electronic apparatus 100 can be prevented from entering the electronic apparatus 100 through a gap between the camera module body 40a and the lens ornament 40b.
The lens cover 477 is fixedly connected to the bottom wall 4763 of the cover fixing frame 476. The lens cover 477 is disposed on a side of the first lens 472 away from the sensor chip 42, and is opposite to the first lens 472. The lens cover 477 may transmit light outside the camera module 40. The ambient light transmitted through the lens cover 477 can be transmitted to the photosensitive chip 43 through the variable aperture 475, the first lens 472, the second lens 473, the optical filter 45.
The specific structure of each part of the camera module 40 is specifically described above with reference to the accompanying drawings. An embodiment of the positional relationship among the components when the camera module 40 is at the start position, the intermediate position, and the stop position will be described in detail below with reference to the accompanying drawings.
Referring to fig. 34 again, when the image capturing module 40 is at the stop position, the second lens 473 is located between the first lens 472 and the photo sensor chip 43. The second barrel 473a of the second lens 473 contacts the module holder 44. At this time, the distance between the second lens 473 and the photosensitive chip 43 is a first distance. The first distance may be a minimum distance between the second lens 473 and the photosensitive chip 43 when the image capture module 40 is in the stop position.
In addition, the first structural member 4631 of the second fitting 463 contacts the module holder 44. The second portion 4745b of the first spacing bracket 4745 (shown in conjunction with figure 31) and the second portion 4745b of the second spacing bracket 4746 (shown in conjunction with figure 32) are each in contact with the module bracket 44. At this time, the distance between the first lens 472 and the second lens 473 is the third distance. The third distance may be a minimum distance between the first lens 472 and the second lens 473 when the camera module 40 is in the stop position.
The first seal ring 48a is provided in contact with the stopper 461 of the elevating mechanism 46b.
Referring to fig. 35, fig. 35 is a partial cross-sectional view of the camera module 40 shown in fig. 34 at an intermediate position. When the image capturing module 40 is in the intermediate position, the second lens 473 is located between the first lens 472 and the photosensitive chip 43. The second lenses 473 are located on the first lenses 472 and are disposed opposite to the photosensitive chips 43. The second barrel 473a of the second lens 473 contacts the module holder 44. At this time, the relative position between the second lens 473 and the photosensitive chip 43 does not change.
In addition, the first structure 4631 of the second fitting 463 is spaced apart from the module holder 44. The distance between the first structure 4631 of the second mating element 463 and the module bracket 44 is a fifth distance. A second portion 4745b of a first stopper bracket 4745 (shown in conjunction with fig. 31) contacts a first stopper portion 4732 of a second barrel 473a of the second lens 473. A second portion 4745b of a second stopper bracket 4746 (shown in conjunction with fig. 32) contacts a second stopper portion 4733 of a second barrel 473a of the second lens 473. At this time, the distance between the first lens 472 and the second lens 473 is a fourth distance. The fourth distance may be a minimum distance between the first lens 472 and the second lens 473 when the camera module 40 is in the intermediate position. The fourth distance is greater than the third distance.
In addition, the waterproof silicone sheath 49 is deformed. Wherein the deformation amount of the waterproof silicone rubber sleeve 49 is a first deformation amount. The first seal ring 48a is spaced apart from the stopper 461 of the elevating mechanism 46b.
Referring to fig. 36, fig. 36 is a partial cross-sectional view of the camera module 40 shown in fig. 34 in the activated position. When the image capturing module 40 is in the activated position, the second lens 473 is located between the first lens 472 and the photo sensor chip 43. The second barrel 473a of the second lens 473 is spaced apart from the module holder 44. At this time, the distance between the second lens 473 and the photosensitive chip 43 is the second distance. The second distance is greater than the first distance. The distance from the second lens 473 to the photosensitive chip 43 increases.
In addition, the first structure 4631 of the second fitting 463 is spaced apart from the module holder 44. The distance between the first structure 4631 of the second mating element 463 and the module bracket 44 is a sixth distance. The sixth distance is greater than the fifth distance.
A second portion 4745b of a first stopper bracket 4745 (shown in conjunction with fig. 31) contacts a first stopper portion 4732 of a second barrel 473a of a second lens 473. A second portion 4746b of a second stopper bracket 4746 (shown in conjunction with fig. 32) contacts a second stopper portion 4733 of a second barrel 473a of the second lens 473. At this time, the relative position between the second lens 473 and the first lens 472 is not changed.
In addition, the waterproof silicone sheath 49 is deformed. Wherein the deformation amount of the waterproof silicone sheath 49 is the second deformation amount. The second amount of deformation is greater than the first amount of deformation. The first seal ring 48a is spaced apart from the stopper 461 of the elevating mechanism 46b.
Referring to fig. 34 and 35 again in conjunction with fig. 30, when the camera module 40 is switched from the stop position to the intermediate position, the driving mechanism 46a drives the first engaging element 462 to rotate. Since the first junction element 4631 of the second engagement element 463 is threadedly connected with the first engagement element 462 and the first engagement element 462 is fixedly connected to the module bracket 44, the first junction element 4631 of the second engagement element 463 can move in the positive Z-axis direction relative to the first engagement element 462. Since the second structure 4632 of the second mating member 463 is elastically coupled to the first structure 4631 of the second mating member 463, the second structure 4632 can move in the positive direction of the Z-axis along with the first structure 4631. Since the base 4711 of the lens motor 471 (shown in conjunction with fig. 26) is fixedly connected to the second structural member 4632 of the second fitting 463, the first lens 472 is fixedly connected to the movable bracket 4714 (shown in conjunction with fig. 26), and the lens motor 471 and the first lens 472 can move along the positive direction of the Z-axis along with the second structural member 4632. Since the first fixing portion 4741a of the first guide bar 4741 is fixedly connected to the moving bracket 4714 of the first lens 472, the second fixing portion 4742a of the second guide bar 4742 is fixedly connected to the moving bracket 4714, the second portion 4745b of the first limit bracket 4745 is fixedly connected to the second end of the first guide portion 4741b of the first guide bar 4741, the second portion 4745b of the second limit bracket 4746 is fixedly connected to the second end of the second guide portion 4742b of the second guide bar 4742, and the first guide bar 4741, the second guide bar 4742, the first limit bracket 4745, and the second limit bracket 4746 move in the Z-axis direction along with the moving bracket 4714. When the image pickup module 40 is at the intermediate position, the second portion 4745b of the first stopper bracket 4745 moves into contact with the first stopper portion 4732 of the second barrel 473a of the second lens 473, and the second portion 4745b of the second stopper bracket 4746 moves into contact with the second stopper portion 4733 of the second barrel 473a of the second lens 473.
In addition, since the first annular wall 4761 of the cover holder 476 is fixedly connected to the second structural member 4632 of the second mating member 463, the second annular wall 4762 of the cover holder 476 is fixedly connected to the first seal ring 48a, and the lens cover 477 is fixedly connected to the bottom wall 4763 of the cover holder 476, the first seal ring 48a, and the lens cover 477 all move in the positive direction of the Z-axis.
It can be understood that when the image capturing module 40 is switched from the stop position to the intermediate position, the relative position between the second lens 473 and the photo sensor chip 43 does not move, that is, the second lens 473 is in the stationary state, and the first lens 472 moves along the positive direction of the Z axis relative to the photo sensor chip 43, and at this time, the distance between the second lens 473 and the first lens 472 increases. Similarly, when the image capturing module 40 is switched from the intermediate position to the stop position, the relative position between the second lens 473 and the photosensitive chip 43 does not move, and the first lens 472 moves in the negative direction of the Z-axis relative to the photosensitive chip 43, and at this time, the distance between the second lens 473 and the first lens 472 decreases.
Referring to fig. 35 and 36 in conjunction with fig. 30, when the camera module 40 is switched from the intermediate position to the starting position, the driving mechanism 46a continues to drive the first engaging member 462 to rotate. The first structure 4631 and the second structure 4632 of the second mating element 463 may continue to move in the positive Z-axis direction, and the lens motor 471 (shown in conjunction with fig. 26) and the first lens 472 may also continue to move with the second structure 4632 in the positive Z-axis direction. First guide bar 4741, second guide bar 4742, first limit bracket 4745, and second limit bracket 4746 continue to move with moving bracket 4714 in the positive direction of the Z-axis. Since the second portion 4745b of the first limit bracket 4745 contacts the first limit portion 4732 of the second barrel 473a of the second lens 473 and the second portion 4745b of the second limit bracket 4746 contacts the second limit portion 4733 of the second barrel 473a of the second lens 473, the first limit bracket 4745 and the second limit bracket 4746 can pull the second lens 473 to move in the positive Z-axis direction.
It can be understood that when the image capturing module 40 is shifted from the intermediate position to the activated position, the second lens 473 moves in the positive Z-axis direction relative to the photosensitive chip 43 and the distance between the second lens 473 and the photosensitive chip 43 increases. In addition, since both the first lens 472 and the second lens 473 move in the positive direction of the Z axis, the relative position between the first lens 472 and the second lens 473 does not change. Similarly, when the image capturing module 40 is shifted from the activated position to the intermediate position, the second lens 473 moves in the negative direction of the Z-axis relative to the photosensitive chip 43 and the distance between the second lens 473 and the photosensitive chip 43 decreases. In addition, since both the first lens 472 and the second lens 473 move in the negative direction of the Z axis, the relative position between the first lens 472 and the second lens 473 does not change.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (18)

1. A camera module (40) is characterized by comprising a module circuit board (41), a photosensitive chip (42), a driving device (46) and a lens component (47), wherein the photosensitive chip (42) is fixed on the module circuit board (41) and is electrically connected to the module circuit board (41);
the driving device (46) comprises a driving mechanism (46 a), a first fitting piece (462) and a second fitting piece (463), the first fitting piece (462) and the driving mechanism (46 a) are fixedly connected to the module circuit board (41), the first fitting piece (462) is connected with the driving mechanism (46 a), and the second fitting piece (463) is movably connected with the first fitting piece (462);
the lens assembly (47) comprises a lens motor (471) and a first lens (472), the lens motor (471) is fixedly connected to the second mating piece (463), the first lens (472) is arranged on the inner side of the lens motor (471) and is opposite to the photosensitive chip (42), and the lens motor (471) is used for driving the first lens (472) to move along the optical axis direction of the camera module (40);
when the camera module (40) is switched from a working state to a stop state, the driving mechanism (46 a) drives the first fitting piece (462) to move, the second fitting piece (463) is close to the module circuit board (41), and drives the lens motor (471) and the first lens (472) to be close to the photosensitive chip (42).
2. The camera module (40) according to claim 1, wherein the first fitting piece (462) is cylindrical in structure, and the inner side of the first fitting piece (462) has a threaded structure, the second fitting piece (463) is cylindrical in structure, and the outer side of the second fitting piece (463) has a threaded structure;
the first mating piece (462) is in threaded connection with the second mating piece (463), and the driving mechanism (46 a) is used for driving the first mating piece (462) to rotate around the optical axis of the camera module (40) so as to drive the second mating piece (463) to move along the direction parallel to the optical axis of the camera module (40).
3. The camera module (40) of claim 2, wherein the second mating element (463) comprises a first structural member (4631), a second structural member (4632), and a bumper member (4634);
the first structural member (4631) is of a cylindrical structure, a thread structure is arranged on the outer side of the first structural member (4631), and the first structural member (4631) is in threaded connection with the first matching piece (462);
the inner surface of the first structural member (4631) is provided with a first boss (4631 a), the inner surface of the second structural member (4632) is provided with a second boss (4632 a), the second structural member (4632) is positioned on the inner side of the first structural member (4631), the first boss (4631 a) is arranged opposite to the second boss (4632 a), the second boss (4632 a) is positioned on the side, away from the module circuit board (41), of the first boss (4631 a), and the lens motor (471) is fixedly connected to the second boss (4632 a);
the cushion member (4634) is connected between the first boss (4631 a) and the second boss (4632 a).
4. The camera module (40) according to claim 3, wherein the first boss (4631 a) is provided with a first limiting groove (4631 b), and the second boss (4632 a) is provided with a second limiting groove (4632 c);
a part of the buffer member (4634) is disposed in the first limiting groove (4631 b), and a part of the buffer member (4634) is disposed in the second limiting groove (4632 c).
5. The camera module (40) according to claim 3 or 4, wherein the second mating member (463) further comprises a third junction member (4633), the third junction member (4633) is ring-shaped, and the third junction member (4633) is fixedly connected to the first junction member (4631) at a side away from the module circuit board (41);
the third structural member (4633) is provided with a limiting projection (4633 a), the second structural member (4632) is provided with a limiting side hole (4632 b), the limiting projection (4633 a) is arranged in the limiting side hole (4632 b), and the limiting projection (4633 a) is connected to the hole wall of the limiting side hole (4632 b) in a sliding manner.
6. The camera module (40) of any of claims 1 to 5, wherein the first fitting member (462) has a gear portion (4621) on an outer surface thereof, the output end (460 a) of the drive mechanism (46 a) is of a gear structure, and the gear portion (4621) is engaged with the output end (460 a) of the drive mechanism (46 a).
7. The camera module (40) according to claim 6, wherein the driving device (46) further comprises a limiting member (461), the limiting member (461) is annular, and the limiting member (461) is fixedly connected to the module circuit board (41);
the inner wall (4611) of the limiting part (461) is in a step shape, the inner wall (4611) of the limiting part (461) is provided with a limiting surface (4615), the first matching part (462) is arranged on the inner side of the limiting part (461), and the gear part (4621) of the first matching part (462) is clamped between the module circuit board (41) and the limiting surface (4615) of the limiting part (461).
8. The camera module (40) of any of claims 1-7, wherein the lens assembly (47) further comprises a connection mechanism (474) and a second lens (473), the second lens (473) being located between the first lens (472) and the photo-sensing chip (42), the connection mechanism (474) being connected between the first lens (472) and the second lens (473);
the second lens (473) comprises a second lens barrel (473 a), and the second lens barrel (473 a) is provided with a first limiting part (4732) and a second limiting part (4733) which are arranged at intervals;
the connecting mechanism (474) comprises a first guide rod (4741), a second guide rod (4742), a first limit bracket (4745) and a second limit bracket (4746), wherein at least part of the first limit bracket (4745) is positioned on one side of the first limit part (4732) away from the first lens (472), and at least part of the second limit bracket (4746) is positioned on one side of the second limit part (4733) away from the first lens (472);
a first end of the first guide rod (4741) is fixedly connected to the lens motor (471), a second end of the first guide rod (4741) penetrates through the first limiting part (4732) and is fixedly connected to the first limiting bracket (4745), and the first guide rod (4741) is slidably connected with the first limiting part (4732);
a first end of the second guide rod (4742) is fixedly connected to the lens motor (471), a second end of the second guide rod (4742) penetrates through the second limiting part (4733) and is fixedly connected to the second limiting bracket (4746), and the second guide rod (4742) is slidably connected to the second limiting part (4733);
in the process that the camera module (40) is in a stopping state from a working state, the camera module (40) comprises a starting position, a middle position and a stopping position;
when the camera module (40) is switched from a starting position to a middle position, the first guide rod (4741), the first limit bracket (4745), the second guide rod (4742), the second limit bracket (4746) and the second lens (473) approach the photosensitive chip (42) along with the lens motor (471);
when the camera module (40) is switched from the middle position to the stop position, the first guide rod (4741), the first limit bracket (4745), the second guide rod (4742) and the second limit bracket (4746) are close to the photosensitive chip (42) along with the lens motor (471), the first lens (472) is close to the second lens (473), and the second lens (473) is in a static state.
9. The camera module (40) of claim 8, wherein the connection mechanism (474) further comprises a first resilient member (4743) and a second resilient member (4744);
the first guide rod (4741) is sleeved with the first elastic piece (4743), one end of the first elastic piece (4743) is connected to the first end of the first guide rod (4741), the other end of the first elastic piece is connected to the first limiting part (4732), and the first elastic piece (4743) is in a compressed state;
the second guide rod (4742) is sleeved with the second elastic piece (4744), one end of the second elastic piece (4744) is connected to the first end of the second guide rod (4742), the other end of the second elastic piece is connected to the second limiting portion (4733), and the second elastic piece (4744) is in a compressed state.
10. The camera module (40) according to claim 8 or 9, characterized in that the connecting mechanism (474) further comprises a first magnet (4747), the first magnet (4747) being fixedly connected to the first position-limiting portion (4732);
the first limit bracket (4745) comprises a first part (4745 a), a second part (4745 b) and a third part (4745 c) which are connected in sequence, the first part (4745 a) and the third part (4745 c) are connected on the same side of the second part (4745 b), the first part (4745 a) and the second part (4745 b) are bent, the second part (4745 b) and the third part (4745 c) are bent, the first part (4745 a) and the third part (4745 c) are respectively positioned on two sides of the first limit part (4732), and the second part (4745 b) is positioned on one side of the first limit part (4732) close to the photosensitive chip (42);
the second end of the first guide rod (4741) is fixedly connected to the second portion (4745 b), the first magnet (4747) is located between the first portion (4745 a) of the first limiting support (4745) and the middle of the first guide rod (4741), and the first limiting support (4745) is made of a magnetic conductive material.
11. The camera module (40) according to any of claims 1 to 10, wherein the first limiting portion (4732) is provided with a third guide hole (4734), and the first guide rod (4741) passes through the third guide hole (4734) and is slidably connected to the third guide hole (4734);
the third guide hole (4734) is a V-shaped hole, and the middle part of the third guide hole (4734) is right opposite to the first magnet (4747).
12. The camera module (40) according to any one of claims 1 to 11, wherein the lens motor (471) includes a base (4711), a fixed bracket (4713), a moving bracket (4714), a first coil (4715 a), a second coil (4715 b), a first motor magnet (4716 a), and a second motor magnet (4716 b);
the base plate (4711) is fixedly connected to the second fitting piece (463), the fixed bracket (4713) is fixedly connected to the base plate (4711), the movable bracket (4714) is slidably connected to the base plate (4711) and the fixed bracket (4713), and the first lens (472) is fixedly connected to the movable bracket (4714);
one of the first coil (4715 a) and the first motor magnet (4716 a) is fixedly connected to the base plate (4711), and the other is fixedly connected to the moving bracket (4714), the first coil (4715 a) being disposed opposite to the first motor magnet (4716 a);
one of the second coil (4715 b) and the second motor magnet (4716 b) is fixedly connected to the base (4711), the other is fixedly connected to the moving bracket (4714), and the second coil (4715 b) and the second motor magnet (4716 b) are oppositely disposed.
13. The camera module (40) according to claim 12, wherein the lens motor (471) further comprises a first sliding bar (4712 a) and a second sliding bar (4712 b), one end of the first sliding bar (4712 a) is fixedly connected to the base (4711) and the other end is fixedly connected to the fixed bracket (4713), one end of the second sliding bar (4712 b) is fixedly connected to the base (4711) and the other end is fixedly connected to the fixed bracket (4713), and the second sliding bar (4712 b) is spaced apart from the first sliding bar (4712 a);
the mobile bracket (4714) is slidably connected to the first slide bar (4712 a) and the second slide bar (4712 b).
14. A camera module (40) according to any of claims 1 to 13, wherein the lens assembly (47) further comprises an iris diaphragm (475), the iris diaphragm (475) being located on a side of the first lens (472) remote from the photo-sensitive chip (42), the iris diaphragm (475) being fixedly attached to the first lens (472).
15. The camera module (40) of any of claims 1-14, wherein the lens assembly (47) further comprises a cover mount (476) and a lens cover (477);
the cover fixing frame (476) is fixed to the second matching piece (463), and the cover fixing frame (476) is arranged around the first lens (472);
the lens cover plate (477) is fixedly connected to the cover plate fixing frame (476), and the lens cover plate (477) is located on one side of the first lens (472) away from the photosensitive chip (42) and is arranged opposite to the first lens (472).
16. The camera module (40) according to claim 15, wherein the camera module (40) further comprises a lens decoration (40 b) and a waterproof silicone sleeve (49);
the lens decoration (40 b) is fixedly connected with the module circuit board (41), and the cover plate fixing frame (476) is positioned on the inner side of the lens decoration (40 b);
the outer peripheral edge of waterproof silica gel cover (49) fixed connection in lens decoration (40 b), the inner peripheral edge fixed connection of waterproof silica gel cover (49) in apron mount (476).
17. The camera module (40) according to claim 16, wherein the camera module (40) further comprises a first sealing ring (48 a) and a second sealing ring (48 b), the first sealing ring (48 a) is fixedly connected with the inner periphery of the waterproof silicone sleeve (49) and the cover plate fixing frame (476), and the second sealing ring (48 b) is fixedly connected with the outer periphery of the waterproof silicone sleeve (49) and the lens decorating member (40 b).
18. An electronic device (100) comprising a housing (10) and a camera module (40) according to any one of claims 1 to 17, wherein the camera module (40) is provided to the housing (10).
CN202110901474.3A 2021-08-06 2021-08-06 Camera module and electronic equipment Pending CN115914779A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110901474.3A CN115914779A (en) 2021-08-06 2021-08-06 Camera module and electronic equipment
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JP2010262177A (en) * 2009-05-08 2010-11-18 Olympus Imaging Corp Camera unit
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