WO2023036295A1 - 用于摄像模组的线路板及相应的摄像模组 - Google Patents

用于摄像模组的线路板及相应的摄像模组 Download PDF

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Publication number
WO2023036295A1
WO2023036295A1 PCT/CN2022/118119 CN2022118119W WO2023036295A1 WO 2023036295 A1 WO2023036295 A1 WO 2023036295A1 CN 2022118119 W CN2022118119 W CN 2022118119W WO 2023036295 A1 WO2023036295 A1 WO 2023036295A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
hard
camera module
connection
plate
Prior art date
Application number
PCT/CN2022/118119
Other languages
English (en)
French (fr)
Inventor
诸海江
劳益杭
朱亚飞
聂军龙
陈永明
李威
范迪科
魏罕钢
杨祎
俞丝丝
刘春梅
赵开开
吴雨榕
Original Assignee
宁波舜宇光电信息有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202111061007.0A external-priority patent/CN115811641A/zh
Priority claimed from CN202111061548.3A external-priority patent/CN115811642B/zh
Priority claimed from CN202111060876.1A external-priority patent/CN115811640B/zh
Priority claimed from CN202111064738.0A external-priority patent/CN115942073A/zh
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Priority to EP22866756.4A priority Critical patent/EP4398590A1/en
Priority to CN202280054601.3A priority patent/CN117859334A/zh
Publication of WO2023036295A1 publication Critical patent/WO2023036295A1/zh

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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
    • H04N23/54Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/14Structural association of two or more printed circuits
    • H05K1/147Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007Types of components
    • H05K2201/10121Optical component, e.g. opto-electronic component
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2009Reinforced areas, e.g. for a specific part of a flexible printed circuit

Definitions

  • the present invention relates to the technical field of camera modules, in particular, the present invention relates to a circuit board for a camera module and a corresponding camera module, wherein the present invention improves the structure, position and assembly method of the circuit board .
  • the mobile phone camera module is one of the important components of smart equipment, and its application range and application volume in the market continue to grow. With the advancement of technology, intelligence is being advocated in both work and life, and one of the important prerequisites for realizing intelligence is to be able to achieve good interaction with the external environment. One of the important ways to achieve good interaction is visual perception. Perception is mainly dependent on the camera module. It can be said that the camera module has changed from an obscure smart equipment accessory to one of the key components of smart equipment.
  • the applicant proposed a dual OIS motor (OIS is an English abbreviation for optical image stabilization, sometimes also called optical image stabilization)
  • the motor has two parts, one of which is used to drive the optical lens to move , and the other part is used to drive the photosensitive chip to move, and at the same time drive the optical lens and the photosensitive chip to move, which can achieve better anti-shake effect.
  • OIS optical image stabilization
  • the photosensitive chip is attached to the circuit board, and the connection strip on the circuit board will cause relatively large resistance to the movement of the photosensitive chip.
  • the circuit board is usually a rigid-flex board, wherein the hard board part is the main part of the circuit board, and the soft board part is drawn from the side of the main part to form a connecting strip, and the end of the connecting strip (i.e. The free end) can be provided with a connector for plugging in with the mainboard of the mobile phone.
  • the connector at the end of the connecting band can be pin array, and a corresponding socket-shaped connector is set on the main board of the mobile phone, and the electrical connection between the circuit board of the camera module and the main board of the mobile phone is realized by plugging the pins and the socket.
  • One end of the connecting strip of the above-mentioned traditional circuit board is fixed on the main board of the mobile phone.
  • the main body of the circuit board will also move accordingly, while the connecting strip on the side will be pulled by the connector end, thus forming Greater resistance.
  • the resistance of the connecting belt will cause the optical actuator to provide a greater driving force, which is not conducive to the miniaturization of the camera module.
  • the resistance of the connecting strap is irregular and may also cause the accuracy of the anti-shake movement to decrease.
  • the dual OIS motor has a more complex motor structure, resulting in an increase in the wiring area required for the circuit board. If the traditional stacking of more PCB board levels is used to increase the wiring area, the height of the camera module will increase.
  • the applicant proposes a solution in which the side connection strips are respectively drawn out on two symmetrical sides of the main body of the circuit board to overcome the above-mentioned defects.
  • the surfaces of the two side connecting strips are approximately perpendicular to the surface of the main body of the circuit board, and the side connecting strips and the main body of the circuit board form a bent portion through an upwardly bent soft board, and the side connecting strips can be suspended on the optical actuator on the fixed part.
  • This new circuit board design solution can reduce the resistance brought by the connection belt used to connect the main board of the mobile phone to the movement of the main body of the circuit board.
  • this brand-new circuit board structure still has many problems such as low yield rate and insufficient production efficiency during actual assembly.
  • the circuit board structure can be designed to be more suitable for automatic production, and the production efficiency can be improved through automatic production.
  • Another example is to improve the shape of the camera module and its circuit board structure by analyzing and finding the main reasons that affect the yield rate of the camera module, and finally improve the yield rate of the camera module product.
  • the height direction of the camera module is usually the thickness direction of electronic devices such as mobile phones, so the height of the camera module directly affects the thickness of the mobile phone or other electronic devices equipped with the camera module.
  • the optical actuator needs to be equipped with a chip anti-shake part and a lens anti-shake part at the same time, it may occupy a large space in the height direction. Therefore, there is an urgent need for a solution capable of reducing the height of the camera module.
  • the purpose of the present invention is to overcome the deficiencies of the prior art and provide a circuit board and camera module solution that can reduce the movement resistance of the circuit board main body and the photosensitive chip, have a high yield rate and high production efficiency.
  • the present invention provides a circuit board for a camera module, which includes a main body of the circuit board and at least two side connecting strips.
  • the main body of the circuit board has a surface perpendicular to the optical axis of the camera module and a plurality of side surfaces parallel to the optical axis.
  • the side connecting strips are led out from the side of the main body of the circuit board and bent upwards, and extend on the side of the camera module after bending to form the main body of the side connecting strips; the side connecting strips have a hard plate , in the at least two lateral connection strips, the outer surface of the rigid plate of one of the lateral connection strips has a plurality of solder pads, and the other hard plate of the lateral connection strip has a plurality of conductive channels.
  • the two hard plates of the lateral connecting strips are arranged overlappingly; the soldering medium is attached to the side wall of the conductive via hole and contacts the pad through the conductive via hole.
  • the multiple sides include a first side, a second side opposite to the first side, a third side adjacent to the first side, and a fourth side opposite to the third side.
  • the side connection belt includes: a first connection belt, which includes a first connection belt soft board and a first connection belt hard board, and the first connection belt soft board is led out from the first side of the circuit board main body and bend upwards, then extend along the first side, and then bend to the third side, the first connection with a hard plate is located on the third side and the first connection with a hard plate is on the side It is connected with the soft plate of the first connecting band, the surface of the hard plate of the first connecting band is parallel to the optical axis; and the second connecting band comprises a soft plate of the second connecting band and a hard plate of the second connecting band,
  • the second connecting flexible board is led out from the second side of the main body of the circuit board and bent upwards, then extends along the second side, and then bends to the third side, the second The hard plate of the connecting band is located on
  • the hard plate of the first connecting band and the hard plate of the second connecting band are bonded by an adhesive medium; the inner surface of the hard plate of the first connecting band and the outer surface of the hard plate of the second connecting band There is a gap of no more than 100 ⁇ m between them.
  • the soldering medium enters the conductive via in the form of a jet stream in a molten state and adheres to the sidewall of the conductive via, and the soldering medium passes through the conductive via and contacts the solder disc; and said soldering medium, after solidification, constitutes a connector spanning the gap between the inner surface of said first connecting strip hard plate and the outer surface of said second connecting strip hard plate; said soldering medium and said conductive Pores remain between part of the walls of the through-holes.
  • a metal layer is attached to the hole wall of the conductive through hole, and the metal layer is a metal plating layer.
  • the metal layer is an annular metal layer.
  • the metal layer is attached to a part of the hole wall of the conductive via hole to form an unclosed metal layer.
  • the unclosed metal layers of all the conductive vias are arranged on the same side of the conductive vias.
  • the arc-shaped metal layers of all the conductive vias are arranged on the lower side of the conductive vias.
  • soldering medium is tin or tin-containing soldering material.
  • the circuit board further includes a third connection strip drawn from the lower side of the hard plate of the first connection strip and bent outward, the surface of the third connection strip is perpendicular to the optical axis, and
  • the free end of the third connection belt has a connector, and the connector is suitable for plugging into the main board of the electronic equipment carrying the camera module.
  • a camera module which includes: an outer frame, an optical lens accommodated in the outer frame, an optical actuator, a photosensitive chip, and any of the aforementioned solutions.
  • a circuit board wherein, the photosensitive chip is fixed to the circuit board main body of the circuit board, and the optical actuator is suitable for driving the optical lens and/or the photosensitive chip to move; the optical actuation
  • the actuator includes an actuator fixing part, and the lateral connecting band is disposed in a gap between the outer frame and the actuator fixing part.
  • the photosensitive chip is attached to the upper surface of the main body of the circuit board; an annular base is arranged on the upper surface of the circuit board, the annular base surrounds the photosensitive chip, and the top surface of the annular base is installed on
  • the optical filter, the optical filter, the annular base and the main body of the circuit board form a closed cavity, and the photosensitive chip is packaged in the closed cavity.
  • the center of the main body of the circuit board has a central through hole, a reinforcing plate is attached to the lower surface of the main body of the circuit board, the photosensitive chip is attached to the upper surface of the reinforcing plate and the photosensitive chip is placed In the central through hole;
  • the upper surface of the main body of the circuit board is provided with an annular base, the annular base surrounds the photosensitive chip, the top surface of the annular base is installed on a filter, the filter, the The annular base, the main body of the circuit board and the reinforcing plate form a closed cavity, and the photosensitive chip is packaged in the closed cavity.
  • the optical actuator also includes a chip anti-shake movable part
  • the photosensitive package composed of the circuit board main body, the optical filter, the ring base, and the photosensitive chip is fixed on the chip anti-shake a movable part
  • the photosensitive package is adapted to move relative to the fixed part of the actuator driven by the chip anti-shake movable part, the first connection with a hard plate and the second connection with a hard plate
  • the plates are all directly or indirectly fixed to the actuator fixing part.
  • the optical actuator also includes a chip anti-shake movable part, and the photosensitive package composed of the circuit board main body, the optical filter, the annular base, the reinforcing plate and the photosensitive chip is fixed.
  • the photosensitive package is suitable for moving relative to the fixed part of the actuator driven by the movable part of the chip anti-shake, and the first connecting belt hard plate and the The hard plates of the second connection belt are directly or indirectly fixed to the actuator fixing part.
  • the optical actuator further includes a lens driving movable part, the optical lens is mounted on the lens driving movable part, and is adapted to be driven by the lens driving movable part relative to the actuating The fixed part of the device moves.
  • the outer surface of the fixed part of the actuator has a protruding column protruding outward
  • the hard plate of the side connecting belt has a hanging hole, and the protruding column passes through the hanging hole so that the The side connecting strap is suspended from the actuator fixing part.
  • the main body of the circuit board of the camera module has a plurality of side connecting strips drawn from different sides, and these side connecting strips are closed on the side of the camera module, and the hard side of the side connecting strips
  • the board can be suspended from the actuator fixing part (the actuator fixing part can include the chip anti-shake fixing part and the lens driving fixing part fixed together), this design can significantly reduce the movement of the main body of the circuit board caused by the connection belt.
  • the resistance is especially suitable for camera modules with chip anti-shake function.
  • an innovative non-inserting method is used to realize the electrical connection at the closure of the side connection belt, so as to prevent the optical actuator or optical element from being squeezed laterally during the insertion process and causing the camera The image quality of the module is degraded.
  • the welding medium can be injected from the outside in the form of a high-temperature jet and pass through the conductive through hole. After cooling, the welding medium can be attached to the The side wall of the conductive via hole passes through the conductive via hole and contacts the pad, so as to realize the electrical connection of the two side connecting strips on the side in a non-inserting manner.
  • the side close to the optical axis of the camera module is the inner side
  • the side away from the optical axis is the outer side.
  • the conductive through hole can be arranged with a conductive layer that is easy to fuse with the welding medium only on a part of the hole wall, so that the welding medium can only adhere to a part of the wall of the conductive through hole segment, while the rest of the segment leaves a gap to observe whether the soldering medium is in contact with the pad from the outside through the gap, thereby helping to improve the yield.
  • double-sided adhesives may be used to bond the two rigid boards with side connecting belts, and there may be a gap of less than 100 ⁇ m between the two rigid boards.
  • the soldering medium does not block the conductive via, and on at least one section of the wall of the conductive via, the soldering medium does not connect the wall of the conductive via. In this way, that is, the soldering medium does not block the conductive via hole, so that the bonding pad of the inner hard board can be exposed to the outside world, thereby providing an observation channel for the state of the bonding pad.
  • the operator can observe with the naked eye whether the soldering medium is effectively in contact with the pad, and if it fails to contact the pad, it can be judged as a defective product (NG product).
  • the image of the pad area can be taken through the gap between the wall of the conductive via hole and the welding medium through the shooting device arranged on the outside, and the welding medium can be automatically identified based on the AI algorithm. Touch the pad, and then take measures to improve the yield rate.
  • the circuit board structure of the camera module has at least two side hard boards, and these side hard boards are electrically connected based on a conductive via-pad structure.
  • this new connection method can avoid lateral extrusion of the optical actuator or optical element during the plug-in process, which will cause the image quality of the camera module to deteriorate.
  • the circuit board structure can be arranged not only under the photosensitive chip, but also in the space around the optical lens, optical actuator and photosensitive component.
  • part of the circuit The board structure can be arranged in the gap between the actuator fixing part and the outer frame, so that the wiring area of the circuit board structure can be increased without increasing the height of the camera module.
  • the welding medium can be injected from the outside in the form of a high-temperature jet and pass through the conductive through hole. After cooling, the welding medium can be attached to the The side wall of the conductive via hole passes through the conductive via hole and contacts the pad, so as to realize the electrical connection of the two side connecting strips on the side in a non-inserting manner.
  • the side close to the optical axis of the camera module is the inner side
  • the side away from the optical axis is the outer side.
  • Some embodiments of the present application improve the connection structure between the circuit board of the photosensitive component and the motor (optical actuator) pin, and improve the traditional pad-stitch type welding structure into an underside recess-stitch type welding structure, Therefore, the space in the height direction of the module occupied by the motor pin welding structure is reduced, thereby reducing the height of the camera module.
  • the optical actuator of the dual OIS camera module has two sets of anti-shake structures, the chip anti-shake part and the lens anti-shake part.
  • the chip anti-shake part is usually It needs to be placed very close to the photosensitive chip, so by setting an undercut on the side of the circuit board, the motor pins can be avoided, thereby effectively reducing the space occupied by the motor pin soldering structure in the height direction of the module. space.
  • the undercut-stitch welding structure can be used in conjunction with the suspended circuit board structure.
  • the surface of the main body of the circuit board is perpendicular to the optical axis of the camera module, and the circuit board
  • the suspension part may include one or more hard plates, the surfaces of which are parallel to the optical axis of the camera module and suspended from the fixing part of the optical actuator.
  • the two symmetrical sides (such as the first side and the second side) of the main body of the circuit board can respectively lead out the soft board and bend upwards to form two connection strips, and the end of the connection strip can be provided with the hard board to form the
  • the suspension part of the circuit board, the hard board of the suspension part can be arranged on the third side.
  • a plurality of hard boards can be overlapped on the third side and electrically connected through a conductive via-pad structure.
  • the undercut-stitch type soldering structure in the present application can be provided on the fourth side of the main body of the circuit board, that is, the side opposite to the third side. This design efficiently and reasonably utilizes the space on the four sides of the main body of the circuit board, thereby making the internal layout of the camera module more compact and contributing to the miniaturization of the camera module.
  • the bottom plate may be provided with a pin avoidance hole directly under the side recess , so as to prevent the welding medium flowing to the bottom of the motor pin under the action of gravity from contacting the bottom plate, thereby avoiding the problem of defective products caused by short circuit.
  • the motor pins can be arranged obliquely, thereby reducing the dimension in the height direction occupied by the motor pins, thereby reducing the height of the camera module.
  • a reinforcing board is attached to the bottom surface of the main body of the circuit board, and the side-mounted
  • the flexible board bending part of the connection belt further reduces the movement resistance of the main body of the circuit board, further reduces the driving force required for the movement of the photosensitive component, and improves the driving precision.
  • Fig. 1 shows a three-dimensional exploded view of a camera module according to an embodiment of the present application
  • Fig. 2 shows a schematic perspective view of a camera module according to an embodiment of the present application
  • Fig. 3 shows a perspective view of the chip driving part of the optical actuator in one embodiment of the present application
  • FIG. 4 shows a schematic perspective view of the lens driving part of the optical actuator in one embodiment of the present application
  • FIG. 5 shows a schematic perspective view of an optical actuator in an embodiment of the present application
  • Fig. 6 shows a schematic diagram of an optical actuator in an embodiment of the present application at a downward viewing angle
  • FIG. 7 shows a perspective view of a suspended circuit board and a photosensitive chip mounted thereon in one embodiment of the present application
  • Fig. 8 shows a three-dimensional cross-sectional view of a suspended circuit board and a photosensitive chip mounted thereon in one embodiment of the present application
  • FIG. 9 shows a schematic top view of a suspended circuit board and a photosensitive chip mounted thereon in one embodiment of the present application.
  • Fig. 10 shows a schematic top view of a suspended circuit board in a flattened state in one embodiment of the present application
  • Figure 11 shows a perspective view of the camera module in one embodiment of the present application after removing the outer frame; in this figure, the positional relationship between the suspended circuit board and the optical actuator inside the outer frame is revealed;
  • Figure 12a shows a schematic diagram of the electrical connection of the inner and outer hard boards with a ring-shaped metal layer in the conductive via hole in one embodiment of the present application
  • Fig. 12b shows a schematic diagram of the electrical connection of the inner and outer hard boards with conductive vias having no closed metal layer in another embodiment of the present application
  • Fig. 12c shows a schematic diagram of a hard board with conductive vias that do not close the metal layer in another embodiment of the present application
  • Fig. 13 shows a schematic top view of a suspended circuit board attached with a reinforcement board in a flattened state in one embodiment of the present application
  • Fig. 14 shows a schematic side view of the reinforcing plate and the suspended circuit board in a bent state in one embodiment of the present application
  • Fig. 15 shows a three-dimensional schematic view of the reinforcing plate and the suspended circuit board in a bent state in one embodiment of the present application
  • Fig. 16 shows a schematic perspective view of a camera module with a circuit board having an undercut in an embodiment of the present application
  • Fig. 17 shows a partial schematic diagram of the electric connection between the side recess of the circuit board and the conductive pin of the optical actuator in one embodiment of the present application;
  • Fig. 18 shows a schematic perspective view of a camera module with an outer frame in one embodiment of the present application
  • Fig. 19 shows a schematic perspective view of a camera module with a frame cover added in one embodiment of the present application
  • Figure 20 shows the positional relationship between the frame bottom plate and the suspended circuit board in one embodiment of the present application
  • Fig. 21 shows the positional relationship of the conductive cloth, the frame bottom plate and the suspended circuit board in one embodiment of the present application.
  • first, second, etc. are only used to distinguish one feature from another, and do not represent any limitation on the features. Accordingly, a first body discussed hereinafter may also be referred to as a second body without departing from the teachings of the present application.
  • a camera module 1 which includes a photosensitive component 30, an optical lens 10 held on the photosensitive path of the photosensitive component 30, and used to drive the The driving assembly 20 for moving the photosensitive assembly 30, and the outer frame 40 for packaging.
  • the bottom surface of the driving assembly 20 is fixedly connected with the photosensitive assembly 30 to drive the photosensitive assembly 30 to move.
  • the optical lens 10 provides a light passage for the optical lens 10 , allowing the light refracted by the optical lens 10 to pass through and enter the photosensitive component 30 .
  • the outer frame 40 encapsulates the driving assembly 20 and the photosensitive assembly 30 therein, and provides a fixed position for the driving assembly 20 to fix the driving assembly 20, so that the photosensitive assembly 30 is suspended Inside the outer frame 40 .
  • the optical lens 10 is held on the photosensitive path of the photosensitive component 30 to collect external imaging light.
  • the optical lens 10 includes a lens barrel 11 and a lens group 12 installed in the lens barrel 11, the lens group 12 includes at least one optical lens, and the number of the at least one optical lens is not limited .
  • the driving assembly 20 includes a chip driving part 21, and the chip driving part 21 includes a chip anti-shake part 211, and the chip anti-shake part 211 is suitable for driving the photosensitive component 30 to translate and move in the X-axis and Y-axis directions. /or rotate around the Z-axis direction to achieve translation and/or rotation stabilization of the photosensitive assembly 30; or, the chip anti-shake part 211 is adapted to drive the photosensitive assembly 30 in the Rotate in the Y direction to realize tilting and anti-shake of the photosensitive assembly 30 .
  • the X-axis direction and the Y-axis direction are perpendicular to each other, and the Z-axis direction is perpendicular to the plane where the X-axis direction and the Y-axis direction are located, in other words, the X-axis , Y axis and Z axis constitute a three-dimensional coordinate system.
  • the chip anti-shake part 211 includes a chip anti-shake fixed part 2111, a chip anti-shake movable part 2112 and a driving element for driving the chip anti-shake movable part 2112 to move relative to the chip anti-shake fixed part 2111,
  • the driving element is connected to the chip anti-shake movable part 2112 and the chip anti-shake fixed part 2111 respectively.
  • the chip anti-shake movable part 2112 is fixed to the photosensitive assembly 30 , so that the driving element drives the photosensitive assembly 30 fixed on the chip anti-shake movable part 2112 to move.
  • the chip anti-shake part 211 may also include a suspension system, the chip anti-shake movable part 2112 is suspended in the chip anti-shake fixed part 2111 through the suspension system, and the suspension system may be implemented as Shrapnels, suspension wires, balls, etc., the embodiment of the present application is not limited by the type of the suspension system.
  • the chip anti-shake part 211 may be a driving motor of a voice coil motor, a piezoelectric motor, a SMA (Shape Memory Alloy) motor or the like.
  • the driving element is implemented as a coil-magnet pair, that is, the driving force for driving the chip anti-shake movable part 2112 is provided between the coil and the magnet. generated by the electromagnetic effect.
  • the coil and the magnet in the coil-magnet pair are adapted to be arranged on the chip anti-shake movable part 2112 and the chip anti-shake fixed part 2111 respectively.
  • the coil in the coil-magnet pair is fixedly arranged on the chip anti-shake movable part 2112, and the magnet in the coil-magnet pair is fixedly arranged on the chip anti-shake fixed part 2111, so that , can reduce the driving force demand for the driving element; it can also be that the magnet in the coil-magnet pair is fixedly arranged on the anti-shake movable part 2112 of the chip, and the coil in the coil-magnet pair is fixedly arranged In the anti-shake fixing part 2111 of the chip, in this way, the way of energizing the coil can be simplified.
  • the number of the coil-magnet pair can be one or more, and it is arranged around the chip anti-shake movable part 2112.
  • the number of the coil-magnet pair can be two, three or four, located at The side surface adjacent to the chip anti-shake movable part 2112 .
  • the driving element is implemented as an SMA (shape memory alloy) wire.
  • SMA shape memory alloy
  • the alloy material returns to its original shape before deformation.
  • the shape memory alloy undergoes a limited plastic deformation at a temperature lower than the phase transformation state, it can be restored to its original shape before deformation by heating.
  • it can be realized by energizing the SMA wire Heating of SMA wire.
  • a set of SMA wires 2113 are provided on four sides of the chip anti-shake part 211, and each set of SMA wires 2113 includes at least one SMA wire. Adjacent two sides of the four sides of the shaking part 211 are arranged vertically (approximately vertically), while opposite two sides of the four sides of the chip anti-shaking part 211 are arranged parallel (approximately parallel).
  • the chip anti-shake fixed part 2111 has a first fixed end 21111 respectively, and the chip anti-shake movable part 2112 has a second fixed end 21121, the two ends of the set of SMA wires 2113 are respectively fixed to the chip anti-shake fixed part 2111 through the first fixed end 21111 and fixed to the chip anti-shake movable part through the second fixed end 21121 2112, so that the group of SMA wires 2113 drives the chip anti-shake movable part 2112 to move relative to the chip anti-shake fixed part 2111, so that the four groups of SMA wires 2113 located on the four sides of the chip anti-shake part 211 drive
  • the chip anti-shake movable part 2112 translates in the perpendicular X-axis and Y-axis directions relative to the chip anti-shake fixed part 2111, or can also drive the chip anti-shake movable part 2112 relative to the chip
  • the anti-shake fixing part 2111 rotates around the Z-axi
  • the chip anti-shake part 211 also includes a chip anti-shake electrical connection part 2114, and the chip electrical connection point is electrically connected to the driving element, that is, the SMA line 2113, thereby providing the chip anti-shake electrical connection part 2114.
  • the chip anti-shake unit 211 drives a power supply.
  • the chip anti-shake electrical connection part 2114 is located on the side of the chip anti-shake part 211, and it further includes a plurality of pins 21141, for example, the chip anti-shake electrical connection part 2114 includes The five pins 21141 of the chip anti-shake part 211 are fixedly arranged on the side of the chip anti-shake fixing part 2111 of the chip anti-shake part 211 in an inverted "L" shape.
  • the driving assembly 20 also includes a lens driving part 22 adapted to drive the optical lens 10 to move.
  • the lens driving part 22 includes a lens focusing part 221, and the lens focusing part 221 is suitable for driving the optical lens 10 to translate in the Z-axis direction, so as to adjust the distance between the optical lens 10 and the photosensitive component 30 to realize the Describe the focusing function of the optical lens 10.
  • the lens driving part 22 may also include a lens anti-shake part 222, and the lens anti-shake part 222 is suitable for driving the optical lens 10 to translate in the directions of the X-axis and the Y-axis and/or rotate around the direction of the Z-axis.
  • the lens anti-shake part 222 is adapted to drive the optical lens 10 to rotate around the X-axis direction and around the Y direction, so as to realize the The tilting anti-shake of the optical lens 10 is described.
  • the lens driving part 22 may only include the lens focusing part 221 or the lens anti-shake part 222; the lens driving part 22 may also include the lens focusing part 221 and the lens anti-shake part The shaking part 222, so that the lens driving part 22 can not only realize the lens focusing function but also realize the lens anti-shaking function.
  • the lens focus unit 221 and the lens anti-shake unit 222 may be driving motors such as voice coil motors, piezoelectric motors, and SMA (Shape Memory Alloy) motors.
  • driving motors such as voice coil motors, piezoelectric motors, and SMA (Shape Memory Alloy) motors.
  • the lens driving part 22 includes a lens driving fixed part 2201 , a lens driving movable part 2202 and is used to drive the lens driving movable part 2202 relative to the
  • the lens drives the driving element (not shown) that moves the fixed part 2201 , and the driving element connects the lens driving movable part 2202 and the lens driving fixed part 2201 respectively.
  • the lens driving movable part 2202 is fixed to the optical lens 10 , so that the driving element drives the optical lens 10 fixed on the lens driving movable part 2202 to move.
  • the lens driving part 22 may also include a suspension system (not shown), the lens driving movable part 2202 is suspended in the lens driving fixed part 2201 through the suspension system, and the suspension system may be Implemented as one or more of shrapnel, suspension wire, ball, etc., the application is not limited by the type of suspension system.
  • the driving element drives the lens driving movable part 2202 to move relative to the lens driving fixed part 2201, which is suitable for realizing lens focusing or lens anti-shake function, so that the driving element, the The lens driving movable part 2202 and the lens driving fixed part 2201 constitute the aforementioned lens focusing part 221 or the lens anti-shake part 222 .
  • the lens driving movable part 2202 may further include a first lens driving movable part 2202, a second lens driving movable part 2202 located inside the first lens driving movable part 2202, and a second lens driving movable part 2202 for driving the first lens driving movable part 2202.
  • the second lens drives the movable part 2202 to move relative to the first lens to drive the movable part 2202 . Therefore, the driving element located between the lens driving fixed part 2201 and the lens driving movable part 2202 drives the lens driving movable part 2202 to realize the lens anti-shake function.
  • the driving element between the movable part 2202 and the second lens driving movable part 2202 drives the second lens driving movable part 2202 to move to realize the lens focusing function; or, it can also be located in the lens driving
  • the driving element between the fixed part 2201 and the lens driving movable part 2202 drives the lens driving movable part 2202 to move to realize the lens focusing function, while the first lens driving movable part 2202 and the The driving element between the second lens driving movable parts 2202 drives the second lens driving movable part 2202 to move to realize the lens anti-shake function.
  • the lens driving part 22 includes a lens driving electrical connection part 2203 located on the side.
  • the lens driving electrical connecting part 2203 is electrically connected to the driving element of the lens driving part 22 and provides driving power for the lens driving part 22 .
  • the lens drive electrical connection part 2203 includes a plurality of lens drive pads 22031, and the plurality of lens drive pads 22031 are arranged in two rows to reduce the length of the lens drive electrical connection part 2203, for example, located in the upper row
  • the number of the lens driving pads 22031 is 4, and the number of the lens driving pads 22031 in the lower row is also 4.
  • the lens driving fixing part 2201 of the lens driving part 22 further includes at least two hanging parts, and the at least two hanging parts are located on the side of the lens driving fixing part 2201.
  • the at least two hanging parts are located on the same side of the lens driving fixing part 2201 and the lens driving electrical connecting part 2203 .
  • the number of the at least two suspension parts can be two, which are the first suspension part 22011 and the second suspension part 22012 respectively, and the first suspension part 22011 and the second suspension part 22012 are connected to the lens drive electrical connection part respectively. Both sides of 2203 extend outward from the lens driving fixing part 2201 .
  • the functions of the at least two hanging parts will be expanded in the subsequent description of the photosensitive assembly 30 , and will not be repeated here.
  • the lens driving part 22 and the chip driving part 21 may be separated from each other, or may be fixed to each other, and the lens driving part 22 may communicate with the lens driving fixing part 2201
  • the chip driving and fixing parts of the chip driving part 21 (for example, the chip anti-shake fixing part 2111 ) are bonded and fixed or integrally formed so as to be fixed to the chip driving part 21 .
  • the driving assembly 20 may include the lens driving part 22 and the chip driving part 21 .
  • the four corners of the chip driving part 21 are recessed to form four concave parts, so that the four corners of the lens driving part 22 protrude downward to form four convex parts, extending into the four concave parts of the chip driving part 21 , wherein, a sensing magnet 2311 is respectively fixed in three recesses of the four convex parts of the lens driving part 22, that is, three sensing magnets 2311 are fixed in the four corners of the lens driving part 22 .
  • the magnetometer 2311 is used to provide the magnetic field of the position sensor 2312 on the photosensitive assembly 30 shown in FIG. and distance. In other implementations of the present application, the number of the sensing magnets 2311 may also be one, two or four or other numbers.
  • FIG. 5 further shows that the chip anti-shake electrical connection part 2114 of the chip driving part 21 and the lens driving electrical connection part 2203 of the lens driving part 22 are respectively located on opposite sides of the driving assembly 20 .
  • FIG. 6 further shows that the lens focusing part 221 of the lens driving part 22 is located inside the lens anti-shake part 222, and the size of the through hole in the middle of the chip driving part 21 is larger than that in the middle of the lens driving part 22. The size of the through hole provides a light path that is not blocked by the optical lens 10, thereby reducing the problem of vignetting.
  • the photosensitive component 30 includes a circuit board 31 , a photosensitive chip 32 , a base 34 and a filter element 35 .
  • the photosensitive chip 32 includes a photosensitive area 321 and a non-photosensitive area 322321, the photosensitive chip 32 is electrically connected to the circuit board 31 through the photosensitive chip pad located at the non-photosensitive area 322321, for example, the photosensitive chip 32 can be It is electrically connected to the circuit board 31 by means of gold wire bonding, wire bonding, welding, FC technology (flip chip), RDL (redistribution layer technology) and the like.
  • the photosensitive chip 32 is adapted to be fixed on the upper surface of the circuit board 31 through an adhesive medium (the side of the circuit board 31 facing the lens is defined as the upper surface), or the photosensitive chip 32 is arranged on the circuit board 31 In the through hole 3111 of the circuit board, thereby reducing the influence of the thickness of the circuit board 31 on the thickness of the photosensitive assembly 30, so as to reduce the height of the camera module.
  • the base 34 is disposed on the photosensitive part of the chip of the circuit board 31 for supporting other components.
  • the base 34 is implemented as a separately molded plastic bracket, which is attached to the surface of the circuit board 31 through an adhesive medium and used to support other components.
  • the base 34 can also be formed on the circuit board 31 in other ways, for example, the base 34 is implemented as a molded base, which is integrally formed on the circuit through a molding process.
  • the predetermined position of the plate 31 is not limited by the present application.
  • the filter element 35 is held on the photosensitive path of the photosensitive chip 32 for filtering the imaging light entering the photosensitive chip 32 .
  • the filter element 35 is installed on the base 34 and at least corresponds to the photosensitive area 321 of the photosensitive chip 32 .
  • the filter element 35 may be indirectly installed on the base 34 through other support members.
  • the filter element 35 can also be installed in other positions of the camera module 1, for example, the filter element 35 is formed in the optical lens 10 (for example, As a layer of filter film attached to the surface of a certain optical lens of the optical lens 10), this is not limited by the present application.
  • the circuit board 31 includes a circuit board main body 311 , a connecting strip and a connector part 314 .
  • the circuit board main body 311 is used to install and electrically connect the photosensitive chip 32 and the electronic component 33.
  • the electronic component 33 includes passive devices such as capacitors and resistors and active devices such as driver chips. And fix the circuit board main body 311 and the connector part 314 , the connector part 314 is used to electrically connect with the mobile electronic device to derive the image information output by the photosensitive chip 32 .
  • the four corners of the circuit board main body 311 of the circuit board 31 are also fixed and electrically connected with position sensors 2312 for sensing the movement of the photosensitive component 30, and the number and position of the position sensors 2312 are the same as those located in the drive.
  • the sensing magnets 2311 of the component 20 correspond to each other. For example, when the triangles of the four corners of the driving component 20 are respectively provided with a sensing magnet 2311, all the corresponding triangles of the four corners of the driving component 20
  • the positions of the photosensitive chips 32 of the circuit board 31 are respectively fixed and electrically connected to a position sensor 2312 .
  • the base 34 is fixed to the circuit board main body 311 of the circuit board 31 through an adhesive medium and encapsulates the photosensitive chip 32 therein, and the photosensitive chip 32 Located inside the base 34 (referring to the side of the photosensitive chip 32 ), the electronic component 33 is located outside the base 34 , in other words, the base 34 only encapsulates the photosensitive chip 32 .
  • the base 34 can also package the photosensitive chip 32 and part of the electronic components 33 therein, and another part of the electronic components 33 is located outside the base 34; or, the The base 34 can also encapsulate the photosensitive chip 32 and all the electronic components 33 therein. When the base 34 only encapsulates the photosensitive chip 32 therein, the base 34 can prevent possible dust on the electronic components 33 from polluting the photosensitive chip 32 .
  • the number of the electronic components 33 is multiple, and distributed around the photosensitive chip 32 and the base 34, a plurality of the electronic components 33 are distributed in a circular In the region, this is related to the shape of the chip anti-shake movable part 2112 of the chip anti-shake part 211 .
  • the chip anti-shake movable part 2112 has a cylindrical through hole.
  • the base 34 does not need to package the electronic components 33, so that the dimensions of the base in the length direction, width direction, and height direction are reduced, and the cylindrical through hole of the chip anti-shake movable part 2112 does not need to
  • the size of the base 34 of rectangular design is further enlarged, so that a plurality of electronic components 33 can be distributed on the base 34 and the cylindrical through hole of the chip anti-shake movable part 2112, so that the camera module
  • the horizontal size is reduced.
  • the upper surface of the circuit board main body 311 can also be provided with dust-catching glue to capture dirt such as dust in the camera module.
  • the dust-catching glue can be arranged in a ring around the circumference of the circular area or covering multiple electronic components 33 .
  • circuit board through hole 3111 in the middle of the circuit board main body 311, preferably, the circuit board through hole 3111 is similar in shape to the photosensitive chip 32, for example, the circuit board through hole 3111 is arranged in a rectangular shape, It is used to accommodate the photosensitive chip 32 to reduce the height of the photosensitive component 30 .
  • the photosensitive assembly 30 also includes a reinforcing plate 37, and the reinforcing plate 37 is fixed on the back side of the circuit board main body 311 of the circuit board 31 through an adhesive medium (referring to the side of the circuit board 31 away from the lens). side, opposite to the upper surface of the main body of the circuit board) to provide support and reinforcement for the main body 311 of the circuit board.
  • the reinforcing plate 37 can be a metal plate such as a steel plate or a copper plate, or a plastic plate. For this, and Not limited by this application.
  • the circuit board main body 311 has a circuit board through hole 3111
  • the reinforcing plate 37 is fixed on the back of the circuit board main body 311, and the reinforcing plate 37 and the The circuit board main body 311 forms a groove
  • the photosensitive chip 32 is fixed on the reinforcing plate 37 through an adhesive medium and accommodated in the circuit board through hole 3111 of the circuit board main body 311.
  • the reinforcing plate 37 can be thinner than the main body 311 of the circuit board to reduce the height of the photosensitive component 30, and the reinforcing plate 37 can provide a smoother surface for the photosensitive chip 32 than the main body 311 of the circuit board for bonding and fixing. surface.
  • the circuit board main body 311 can be a rigid board or a flexible board, and the connection strip electrically connected to the photosensitive chip 32 is a rigid-flex board.
  • the connection strips include a first connection strip 312 and a second connection strip 313, and the first connection strip 312 and the second connection strip 313 are connected from two opposite sides of the circuit board main body 311 (for For ease of description, these two opposite sides may be referred to as a first side 301 and a second side 302, adjacent to the first side 301 and the second side 302 are a third side 303 and a fourth side 304,
  • the third side 303 and the fourth side 304 are relatively distributed, and the first side 301, the third side 303, the second side 302 and the fourth side 304 are distributed in a clockwise direction) and bend upwards (upward is pointing away from the circuit board main body 311), and the first connection strip 312 further extends along the first side 301 toward the third side 303 and toward the first The three sides 303 are bent, and the second
  • the second connecting strip 313 is fixed on the third side 303 to form a complete connecting strip, and the connecting strip surrounds the first side 301, the second side 302, the The third side 303 is arranged on three sides. Further, the first connection strip 312 is electrically connected to the second connection strip 313 on the third side 303, and the first connection strip 312 is on the third side.
  • the bottom of 303 bends away from the circuit board main body 311 and extends away from the circuit board main body 311 , and is electrically connected to the connector part 314 .
  • connection belt When the drive assembly 20 drives the circuit board main body 311 to move, the resistance produced by the connection belt is relatively small, which solves the problem of the connection belt relative to the circuit board main body 311 in the prior art. Deflection in the same plane creates a problem of greater drag.
  • the connector part 314 can be a hard board or a soft board, and a connector 36 is electrically connected to the upper surface or the back side of the connector part 314. Through the connector 36, the camera module 1 and the mobile electronic device Electrically connected to derive the image information output by the photosensitive chip 32 .
  • the connector portion 314 can further be electrically connected to other electronic components, so as to reduce the number of electronic components 33 electrically connected to the circuit board main body 311 .
  • the first connection strip 312 includes a first connection strip soft board 3121, a first connection strip hard board 3122 and a third connection strip soft board 3123, and the first connection strip soft board 3121 is respectively electrically connected to the circuit
  • the main body 311 of the board and the hard board 3122 of the first connecting band, and the soft board 3123 of the third connecting band are respectively electrically connected to the hard board 3122 of the first connecting band and the connector part 314 .
  • the first connecting flexible board 3121 has a first bending portion 31211 and a second bending portion 31212, the first connecting flexible board 3121 is connected to the main body of the circuit board through the first bending portion 31211 311 is connected and bent upward from the first side 301 of the circuit board main body 311, and bent from the first side 301 to the third side 303 through the second bending part 31212, so that the first The connecting belt soft board 3121 is connected with the first connecting belt hard board 3122 located on the third side 303 .
  • the third connecting belt flexible board 3123 includes a third bent part 31231, the third connecting belt soft board 3123 is connected to the bottom of the first connecting belt hard board 3122 through the third bent part 31231 and is connected from the bottom of the first connecting belt hard board 3122.
  • the hard board 3122 of the first connection belt is bent downward in a direction away from the main body 311 of the circuit board, so that the soft board 3123 of the third connection belt is connected to the connector part 314 .
  • the first bending portion 31211 is located close to the intersection of the first side 301 and the bottom surface of the circuit board main body 311
  • the second bending portion 31212 is located close to the first side 301 and the second Where the three sides 303 intersect
  • the third bent portion 31231 is located close to the intersection where the third side 303 and the bottom surface of the main body 311 of the circuit board intersect.
  • the second connection strip 313 includes a second connection strip soft board 3131 and a second connection strip hard board 3132, and the second connection strip soft board 3131 electrically connects the circuit board main body 311 and the second connection strip hard board respectively.
  • the second connecting flexible board 3131 has a fourth bending portion 31311 and a fifth bending portion 31312, the second connecting flexible board 3131 is connected to the main body of the circuit board through the fourth bending portion 31311 311 is connected and bent upwards from the second side 302 of the circuit board main body 311, and bent from the first side 301 to the third side 303 through the fifth bending part 31312, so that the second The connection belt soft board 3131 is connected with the second connection belt hard board 3132 located on the third side 303 .
  • the fourth bent portion 31311 is located close to the intersection of the second side 302 and the bottom surface of the circuit board main body 311
  • the fifth bent portion 31312 is located close to the second side 302 and the second side. The position where the three sides 303 intersect.
  • the X-axis direction Take the direction perpendicular to the first side 301 or the second side 302 as the X-axis direction, take the direction perpendicular to the third side 303 and the fourth side 304 as the Y-axis direction, and the X-axis direction is vertical In the Y-axis direction, the direction perpendicular to the X-axis direction and the plane where the Y-axis direction is located (ie, the plane where the circuit board main body 311 is located) is defined as the Z-axis direction.
  • the first bending part 31211 and the fourth bending part 31311 are suitable for bending along the Y-axis direction, so as to reduce the connection when the circuit board main body 311 is driven by the driving assembly 20 to move in the X-axis direction.
  • the second bending portion 31212 and the fifth bending portion 31312 are adapted to bend along the Z-axis direction, so as to reduce the movement of the circuit board main body 311 driven by the drive assembly 20 in the Y-axis direction When the resistance of the connecting band.
  • the first bending part 31211, the fourth bending part 31311, the second bending part 31212 and the fifth bending part 31312 are also adapted to reduce the circuit board main body 311 being driven by the
  • the assembly 20 drives the resistance of the connection belt (including the first connection belt 312 and the second connection belt 313 ) when rotating around the X-axis direction, the Y-axis direction or the Z-axis direction.
  • the first connecting belt flexible board 3121 further includes two first horizontal portions 31213 and a first inclined portion 31214 between the first bending portion 31211 and the second bending portion 31212 .
  • the first inclined part 31214 connects the two first horizontal parts 31213, and through the first inclined part 31214, the first connecting belt flexible board 3121 moves from the first bending part 31211 to the first bending part 31211.
  • the two bent parts 31212 extend and extend upwards, and there is a height difference between the two first horizontal parts 31213; and/or, through the first inclined part 31214, the first connecting belt soft board 3121 is separated from the
  • the first bending part 31211 extends toward the second bending part 31212 and extends outward (away from the main body of the circuit board), there is a gap between the planes where the two first horizontal parts 31213 are located, and the two second The planes of a horizontal portion 31213 are parallel to or intersect each other.
  • the second connection belt flexible plate 3131 further includes two second horizontal parts 31223 and a second inclined part 31224 between the fourth bending part 31311 and the fifth bending part 31312.
  • the second inclined part 31224 connects the two second horizontal parts 31223, through the second inclined part 31224, the second connecting belt soft plate 3131 is connected from the fourth bending part 31311 to the first
  • the five bent parts 31312 extend and extend upwards, and there is a height difference between the two second horizontal parts 31223; and/or, through the second inclined part 31224, the second connecting belt soft plate 3131 is separated from the
  • the fourth bending portion 31311 extends toward the fifth bending portion 31312 and extends outward (away from the main body of the circuit board), there is an interval between the planes where the two second horizontal portions 31223 are located, and the two second The planes where the two horizontal parts 31223 are located are parallel to or intersect.
  • a plastic layer is pasted on the inside and/or outside of the first bending part 31211 and the fourth bending part 31311, so that the first connecting strip 312
  • the first bending part 31211 and the second connecting strip 313 are kept bent at the fourth bending part 31311; the second bending part 31212 and the fifth bending part 31312
  • the inner side and/or the outer side are pasted with a plastic layer, so that the first connecting band 312 is at the second bending part 31212 and the second connecting band 313 is at the fifth bending part 31312 be kept bent.
  • the shaping layer may be copper foil or other thinner components that have a shaping effect.
  • FIG. 10 shows the bottom surface of the circuit board 31 in a flattened state in an embodiment of the present application
  • the circuit board 31 includes a circuit board main body 311, a first connection strip 312, a second connection strip 313 and a connector Section 314.
  • the circuit board main body 311 has a rectangular circuit board through hole 3111 for accommodating the photosensitive chip 32, the first side 301 of the circuit board main body 311 is electrically connected with the first connection strip 312, and the circuit board main body 311
  • the second side 302 is electrically connected to the second connection strip 313 .
  • the first connection belt 312 includes the first connection belt soft board 3121 , the first connection belt hard board 3122 and the third connection belt soft board 3123 , and the first connection belt soft board 3121 includes a first bent part 31211 and a second bending part 31212, the first connection belt soft board 3121 is connected to the circuit board main body 311 through the first bending part 31211 and connected to the first bending part 31212 A connection is connected with a hard board 3122, by bending the first bending part 31211, the second bending part 31212 is suitable for bending the first connection with a soft board 3121; the third connection is with a soft board 3123 includes a third bending part 31231, the third connecting belt soft board 3123 is connected with the first connecting belt hard board 3122 through the third bending part 31231, and by bending the third bending part 31231 It is suitable for bending the third connection belt soft board 3123 .
  • the second connection belt 313 includes the second connection belt soft board 3131 and the second connection belt hard board 3132, and the second connection belt soft board 3131 includes a fourth bending part 31311 and a fifth bending part 31312.
  • the second connection with soft board 3131 is connected to the circuit board main body 311 through the fourth bending part 31311, and the second connection with soft board 3131 and the first connection with soft board 3121 are distributed on the On opposite sides of the main body 311 of the circuit board; the second connection with the soft board 3131 is connected with the second connection with the hard board 3132 through the fifth bending portion 31312 .
  • FIG. 11 shows the structure of the circuit board 31 after the first connection with a soft board 3121 and the second connection with a soft board 3131 are bent.
  • the first connecting belt hard plate 3122 is located on the outside, that is, the second connecting belt hard plate 3132 is located between the drive assembly 20 and the first connecting belt hard plate 3122, and the second connecting belt
  • the hard plate 3132 is positioned on the side of the drive assembly 20 (that is, the third side 303 ) through at least two through holes of the second connecting belt hard plate 3132 and at least two hanging parts on the drive assembly 20 .
  • the first connection belt hard plate 3122 is positioned on the side of the drive assembly 20 (that is, the third side 303 ) through at least two through holes of the first connection belt hard plate 3122 and at least two hanging parts on the drive assembly 20 . ) of the second connection with the outside of the hard plate 3132.
  • the at least two suspension parts on the drive assembly 20 include a first suspension part 22011 and a second suspension part 22012 respectively extending outward from the lens drive fixing part 2201 on both sides of the lens drive electrical connection part 2203.
  • the first suspension part 22011 passes through the through hole on the hard plate 3132 of the second connection belt and the through hole on the hard plate 3122 of the first connection belt
  • the second suspension part 22012 passes through the first connection
  • the through hole on the belt hard plate 3122 and the through hole on the first connecting belt hard plate 3122 are the positioning of the first connecting belt hard plate 3122 and the second connecting belt hard plate 3132 on the drive assembly 20 .
  • the hard board 3122 of the first connection belt and the hard board 3132 of the second connection belt are suitable for being bonded and fixed by an adhesive medium, such as UV glue, UV thermosetting glue, thermosetting glue, double-sided tape and other adhesive media.
  • the second connection strip hard plate 3132 is electrically connected to the first connection strip hard plate 3122, so that the second connection strip 313 is connected to the third connection strip through the first connection strip hard plate 3122
  • the soft board 3123 is electrically connected to the connector portion 314 .
  • Figure 8-12c shows a specific example of the present application
  • the second connection strip hard board 3132 includes a plurality of connection strip pads 31321, and the connection strip pads 31321 are located on the second connection strip hard board 3132 On the side adjacent to the hard plate 3122 of the first connection strip after the circuit board 31 is bent, in other words, in the flattened view of the circuit board 31 shown in FIG.
  • the hard board of the first circuit board 31 includes a plurality of conductive vias, and the plurality of conductive vias include a plurality of first conductive vias 31221 and a plurality of second conductive vias 31222, when the first circuit board 31 After the first connection strip and the second connection strip 313 are bent, the plurality of first conductive through holes 31221 of the hard plate 3122 of the first connection strip are respectively connected to the plurality of the first conductive through holes 3122 of the hard plate 3132 of the second connection strip.
  • connection strip pads 31321 are opposite, so that it is suitable for electrically connecting the plurality of first conductive vias 31221 and the plurality of connection strip pads by providing an electrical connection medium 31322 in the plurality of first conductive vias 31221 31321, realize the electrical conduction between the hard plate 3122 of the first connecting band and the hard plate 3132 of the second connecting band.
  • the electrical connection medium 31322 can be solder such as tin balls, and the electrical connection medium 31322 is fixed to the first conductive via 31221 and to the connection strip pad 31321 by laser welding, namely The electrical conduction between the first connecting strip hard plate 3122 and the second connecting strip hard plate 3132 is made by welding.
  • the first connecting strip hard plate 3122 and the second connecting strip hard plate 3132 are electrically connected by the above-mentioned welding method, compared with the traditional way of connecting through a connector, the process of pressing the connector can be avoided, thereby preventing the drive assembly from being pressed. , to reduce the occurrence of defective drive components.
  • FIG. 12a-FIG. 12b show a structural schematic diagram of welding the first connecting strip hard plate 3122 and the second connecting strip hard plate 3132 through an electrical connection medium 31322 .
  • the connecting strip pad 31321 is located between the second connecting strip hard plate 3132 and the first connecting strip hard plate 3122 , and the first connecting strip hard plate 3122
  • the first conductive via 31221 is composed of a conductive side 312211 and an insulating side 312212, in other words, the first conductive via 31221
  • the metal plating layer is only distributed on a part of the sides of the first conductive through hole 31221 (as shown in FIG.
  • the electrical connection medium 31322 will be biased towards the conductive side 312211, and the electrical connection medium 31322 is only in contact with, fixed and Electrical connection, so that the connection and contact between the electrical connection medium 31322 and the connection strip pad 31321 can be observed from the insulating side 312212 of the first conductive via 31221 to the conductive side 312211, and whether there is a false soldering Problems to reduce the badness of the camera module.
  • the ratio of the area occupied by the conductive side 312211 to the insulating side 312212 is between 0.8-1.25, for example, the conductive side 312211 and the insulating side
  • the areas occupied by 312212 are equal, so as to ensure the electrical connection between the first connecting strip hard plate 3122 and the second connecting strip hard plate 3132 , and at the same time, it is convenient to observe the problem of virtual welding.
  • a plurality of the first conductive vias 31221 The conductive sides 312211 of the through holes 31221 are located on the same side, and the insulating sides 312212 of the plurality of first conductive vias 31221 are located on the other side, for example, the plurality of first conductive vias 31221
  • the insulating sides 312 and 212 are located on the upper side (that is, the side away from the circuit board main body 311), so as to facilitate observation of the soldering situation from the upper side of the camera module.
  • the insulating sides 312212 of the plurality of first conductive vias 31221 may also be located on the lower side, left side or right side of the camera module, or may be located between the left side and the upper side. position, the welding situation can be observed with naked eyes.
  • the electrical connection medium 31322 such as tin, needs to be heated to the melting point to react with the connection strip pad 31321 and the first conductive via 31221. If the temperature is insufficient, the conductive connection medium 31322 cannot be connected to the connection strip pad. 31321 reacts with the first conductive via 31221, resulting in the problem of virtual soldering.
  • the electrical connection medium 31322 is sprayed between the connection strip pad 31321 and the first conductive via hole 31221 through a laser welding process, the connection strip pad 31321 and the first conductive via hole 31221 If the distance between them is too long, the electrical connection medium 31322 will cool down.
  • the gap between the connecting strip pad 31321 and the first conductive via 31221 is less than 100 ⁇ m, and the first connecting strip has a hard plate
  • the gap between 3122 and the hard plate 3132 of the second connection belt is less than 100 ⁇ m.
  • Pre-tinning refers to directly setting solder (or other electrical connection medium) on the connection strip pad 31321 first, so that the solder and the pad react and combine, and then pass the molten solder through the pad.
  • the first conductive via 31221 is arranged between the connecting strip pad 31321 and the first conductive via 31221 to realize electrical conduction.
  • the material of the connection strip pad 31321 is usually different from that of the electrical connection medium 31322. During welding, the two need to react on the contact surface to ensure a stable combination, and the reaction process requires high temperature.
  • a layer of tin can be provided on the surface of the connection strip pad 31321 by pre-tinning, so in the subsequent soldering process, the solder and the tin on the surface of the connection strip pad 31321 are easily combined, and the distance between the surface of the connection strip pad 31321 and the first conductive via 31221 is also shortened, and the temperature of the solder can still be kept relatively high when it is arranged on the surface of the connection strip pad 31321 temperature, thereby having a better welding effect, and can reduce the demand on the welding process.
  • the thickness of the solder is between 10-50 ⁇ m to maintain a good welding effect.
  • the electrical connection between the driving assembly 20 and the circuit board 31 can also be realized by the above-mentioned first conductive via-pad welding.
  • the second connecting belt hard plate 3132 has a recess, so that the second connecting belt hard plate 3132 is bent and hung on the first hanging part 22011 and the When the second suspension part 22012 is on, avoid the lens driving electrical connection part 2203 of the driving assembly 20, and expose the lens driving electrical connecting part 2203, so as to be suitable for electrical connection with the first connecting belt hard plate 3122.
  • the plurality of lens driving pads 22031 on the lens driving electrical connection part 2203 correspond to the plurality of second conductive vias 31222 on the hard board 3122 of the first connection strip, and are connected through an electrical connection medium 31322 electrical connection.
  • the plurality of lens drive pads 22031 on the lens drive electrical connection part 2203 are arranged in two rows to reduce the length of the lens drive electrical connection part 2203, for example, the lens drive pads 22031 on the upper There are four, and the number of the lens driving pads 22031 located below is also four.
  • the upper and lower rows of the lens driving pads 22031 are alternately distributed, and in order to improve the utilization of the area of the lens driving electrical connection part 2203
  • the lens driving pad 22031 has a large size on one side and a small size on the other side, that is, a "gourd" type pad, and the lens driving pad 22031 is close to the edge of the lens driving electrical connection part 2203. The size is relatively larger.
  • the lens driving electrical connection part 2203 is a flexible and rigid board, and the flexible board part of the lens driving electrical connecting part 2203 is electrically connected to the driving element of the lens driving part 22 and the hard board part of the lens driving electrical connecting part 2203 , the plurality of lens driving pads 22031 are located on the hard board part of the lens driving electrical connection part 2203, and the hard board part of the lens driving electrical connecting part 2203 is fixed on the lens driving fixing part of the lens driving part 22 2201 to maintain the stability of the electrical connection between the lens drive electrical connection part 2203 and the external power supply.
  • the outer surface of the lens driving pad 22031 is lower than the outer surface of the hard plate part of the lens driving electrical connection part 2203, so as to provide protection for the lens driving pad 22031 and prevent the lens driving pad 22031 from Scratched, affecting the yield of electrical connections.
  • the plurality of second conductive vias 31222 on the hard board 3122 of the first connecting strip are also composed of a conductive side 312211 and an insulating side 312212, so as to facilitate observation of the second conductive vias 31222.
  • the conductive sides 312211 of the plurality of second conductive vias 31222 are located on the same side, and the insulating sides 312212 of the plurality of second conductive vias are located on the other side, for example, a plurality of The conductive sides 312211 of the plurality of second conductive through-holes 31222 are all located on the lower side (that is, the side close to the main body of the circuit board 311 ), so that it is convenient to observe the soldering situation from the upper side of the camera module.
  • the conductive sides 312211 of the plurality of second conductive vias 31222 can also be located on the upper side, left side or right side of the camera module, or can also be located between the right side and the lower side. position, the welding situation can be observed with naked eyes.
  • the gap is preferably less than 100 ⁇ m, that is, the gap between the hard plate 3122 of the first connection belt and the lens driving connection part is less than 100 ⁇ m.
  • the connection between the second conductive via 31222 and the lens driving pad 22031 can also be soldered by secondary heating or pre-tinning. When pre-tinning is used for soldering, the thickness of the solder is set to 10- 50 ⁇ m to maintain a good welding effect.
  • the driving assembly 20 includes a driving electrical connection part (for example, a lens driving electrical connection part 2203 ) located on the side of the driving assembly 20 , a plurality of pads (such as a lens driving pad 22031 ) on the driving electrical connection part, Corresponding to a plurality of conductive through holes on the hard board part of the circuit board (such as the first connecting strip hard board 3122 ), and electrically connected through the electrical connection medium provided in the conductive through holes.
  • a driving electrical connection part for example, a lens driving electrical connection part 2203
  • a plurality of pads such as a lens driving pad 22031
  • the conductive through-hole-pad welding structure involved in the present application can be applied when the electrical connection part of the camera module is arranged on the side of the camera module, so as to avoid the camera module being under pressure during electrical conduction, Cause the camera module to be defective.
  • the electrical connection part is arranged on the side of the camera module
  • the electrical connection part of the driving assembly 20 can be arranged on the side
  • the electrical connection part of the photosensitive assembly 30 can also be arranged on the side, by having a conductive through hole
  • the circuit board 31 of the circuit board 31 is welded to the electrical connection part, so as to electrically conduct the driving assembly 20 or the photosensitive assembly 30 with the mobile electronic device.
  • the reinforcing plate 37 can also be bent to The bending of the first connecting belt flexible plate 3121 at the first bending portion 31211 is maintained, and the bending of the second connecting belt flexible plate 3131 at the fourth bending portion 31311 is maintained.
  • FIGS. 13-15 show a schematic diagram of the reinforcement board 37 attached to the bottom surface of the circuit board main body 311.
  • the reinforcement board 37 includes a reinforcement board main body 371 and a first reinforcement board side part 372. and the second reinforcing plate side portion 373 , the reinforcing plate main body 371 , the first reinforcing plate side portion 372 and the second reinforcing plate side portion 373 may be integrally formed.
  • the first reinforcing plate side portion 372 further includes a first reinforcing plate bent portion 3721
  • the second reinforcing plate side portion 373 further includes a second reinforcing plate bending portion 3731, and the reinforcing plate passes through the
  • the reinforcing board main body 371 is attached and fixed on the bottom surface of the circuit board main body 311, so that the reinforcing board main body 371 and the circuit board main body 311 having the circuit board through hole 3111 form a groove for accommodating
  • the side portion 372 of the first reinforcing plate is fixedly connected to one side of the main body 371 of the reinforcing plate through the bent portion 3721 of the first reinforcing plate (with the soft plate 3121 connected with the first reinforcing plate).
  • the second reinforcing plate side part 373 is fixedly connected to the reinforcing plate main body 371 and the first reinforcing plate through the second reinforcing plate bent portion 3731
  • the other side opposite to the side portion 372 located on the same side as the second connection with the soft plate 3131 , namely the second side 302 ).
  • the reinforcing plate 37 is made of stainless steel, copper and other metal materials suitable for bending.
  • the first reinforcing plate side portion 372 is bent along the first side 301 of the reinforcing plate main body 371 and extends upward, and through the bending of the second reinforcing plate
  • the second reinforcing plate side portion 373 is bent along the second side 302 of the reinforcing plate main body 371 and extends upward.
  • the shape of the first reinforcing plate side part 372 and the second reinforcing plate side part 373 is not easy to change after bending, therefore, the first reinforcing plate side part 372 and the second reinforcing plate side part 373 It is suitable for keeping the bending of the first bending part 31211 and the fourth bending part 31311, and maintaining the bent shape of the first connecting belt flexible plate 3121 and the second connecting belt flexible plate 3131, thereby reducing the When the driving assembly 20 drives the main body 311 of the circuit board to move, the resistance of the first connecting belt 312 and the second connecting belt 313 is generated.
  • the width of the first reinforcing plate bending portion 3721 is smaller than the width of the first reinforcing plate side portion 372, thereby reducing the difficulty of bending the first reinforcing plate bending portion 3721, further, the first reinforcing plate
  • the bending portion 3721 of the reinforcing plate also has a through hole, which further reduces the resistance of bending the bending portion 3721 of the first reinforcing plate.
  • the width of the second reinforcing plate bending portion 3731 is smaller than the width of the second reinforcing plate side portion 373, thereby reducing the difficulty of bending the second reinforcing plate bending portion 3731, further, the second reinforcing plate
  • the bent part 3731 of the reinforcing plate also has a through hole, which further reduces the resistance of bending the bent part 3731 of the second reinforcing plate.
  • the chip anti-shake electrical connection portion 2114 of the chip anti-shake portion 211 is electrically connected to the circuit board main body 311 by pin welding.
  • the optical lens 10 is assembled on the driving assembly 20, and the driving assembly 20 is fixed on the circuit board main body 311 and electrically connected to the circuit board main body 311, Thereby reducing the height of the camera module.
  • the drive assembly 20 is fixed to the circuit board main body 311 and can be assembled by HA process or AA process.
  • the HA process refers to directly bonding and fixing the drive assembly 20 and the circuit board 31 through an adhesive medium after adjusting the parallelism. It generally requires about 0.03mm to be reserved for the gap between the drive assembly 20 and the circuit board main body 311; and the AA process refers to the active calibration process, which first assembles the optical lens 10 to the drive assembly 20 to form a camera module.
  • Adhesive fixing usually requires a gap of about 0.16 mm between the driving assembly 20 and the circuit board main body 311 . Therefore, no matter through the HA process or the AA process, when the drive assembly 20 and the circuit board main body 311 are bonded and fixed in order to reduce the height of the camera module, the drive assembly 20 and the circuit board main body 311 The gap between 311 will be lower.
  • the chip anti-shake electrical connection part 2114 includes a plurality of pins 21141, and the pins 21141 include a lateral part 211411 fixedly connected to the chip anti-shake fixing part 2111 and connected to the
  • the horizontal part 211411 is integrally formed and perpendicular (approximately vertical) to the vertical part 211412 of the horizontal part 211411, the vertical part 211412 of the pin 21141 determines the height of the pin 21141, common pin size It is 0.5 mm, which is far beyond the gap between the driving assembly 20 and the circuit board main body 311 .
  • the pins are usually welded on the circuit board 31, and a gap of 0.2mm is reserved between the pins and the circuit board 31, which, for the present application, will cause the drive
  • the increased gap between the component 20 and the circuit board main body 311 increases the height of the camera module, which is inconsistent with the requirement of reducing the height of the camera module.
  • the main body 311 of the circuit board has a plurality of side recesses 3112, and the plurality of side recesses 3112 are located between one side of the main body 311 of the circuit board and the anti-shake connection part of the chip.
  • the positions corresponding to the plurality of pins 21141, the pins 21141 pass through the circuit board main body 311 through the underside recess 3112, and electrically connect the pins 21141 and the side by laying an electrical connection medium Recess 3112 .
  • the surface of the undercut portion 3112 has a metal plating layer, so that it can be welded and fixed with the electrical connection medium and electrically conducted.
  • FIG. 17 shows a schematic diagram of the relative positional relationship between the pin 21141 and the main body 311 of the circuit board according to an embodiment of the present application.
  • the vertical portion 211412 of the pin 21141 preferably protrudes from the bottom surface of the circuit board body 311 (ie, the back side of the circuit board body 311), that is, the bottom surface of the vertical portion 211412 of the pin 21141 is lower than the bottom surface of the circuit board body 311.
  • the bottom surface of the circuit board main body 311, so that the electrical connection medium can have a larger contact area with the side of the pin 21141, so as to improve the welding yield and ensure the effect of electrical connection.
  • the reinforcement plate 37 is not attached to the bottom surface of the side recess 3112, and the vertical portion of the pin 21141
  • the bottom surface of 211412 does not protrude from the bottom surface of the reinforcing plate 37, that is, the bottom surface of the vertical part 211412 of the pin 21141 is preferably between the bottom surface of the circuit board main body 311 and the bottom surface of the reinforcing plate 37, so that the The reinforcing plate 37 can protect the pin 21141 and reduce the risk of short circuit caused by contact between the pin 21141 and other components.
  • the bottom surface of the vertical portion 211412 of the pin 21141 may also protrude from the bottom surface of the reinforcing plate 37, or, the bottom surface of the pin 21141
  • the bottom surface of the vertical part 211412 may not protrude from the bottom surface of the circuit board main body 311, that is, the bottom surface of the vertical part 211412 of the pin 21141 may also be higher than the bottom surface of the circuit board main body 311, and is located on the circuit board Between the upper surface and the bottom surface of the main body 311 .
  • the angle between the vertical portion 211412 and the horizontal portion 211411 is 90°.
  • the vertical portion 211412 has an inclination angle greater than 0° and less than 10° relative to the vertical line of the horizontal portion 211411 , so that the vertical portion 211412 has a length It can be longer, reducing the difficulty of the manufacturing process of the pins.
  • the first connection with a soft board 3121 is located on the first side 301 of the camera module 1
  • the second connection with a soft board 3131 is located on the second side of the camera module 1 302
  • the first connecting belt hard plate 3122 and the second connecting belt hard plate 3132 are located on the third side 303 of the camera module 1
  • the chip anti-shake electrical connection part 2114 of the chip driving part 21 is located on the fourth side 304 of the camera module 1.
  • the outer frame 40 includes a frame main body 41 , a frame cover 42 and a frame bottom plate 43 .
  • the frame main body 41 has a through hole for accommodating the driving assembly 20 , and the driving assembly 20 is fixed to the frame main body 41 by an adhesive medium, thereby providing a supporting position for the driving assembly 20 .
  • the frame bottom plate 43 is fixed on the bottom surface of the frame main body 41, thereby protecting the photosensitive assembly 30, and there is a gap between the frame bottom plate 43 and the bottom surface of the photosensitive assembly 30, so that the photosensitive assembly 30 is When the chip anti-shake part 211 of the driving assembly 20 is driven, the frame bottom plate 43 will not interfere with the movement of the photosensitive assembly 30 .
  • the frame bottom plate 43 may also have a through hole, and the through hole of the frame bottom plate 43 corresponds to the chip anti-shake electrical connection part 2114 of the chip anti-shake part 211 of the drive assembly 20, thereby providing the There is more space for the pins 21141, avoiding the contact between the pins 21141 and the frame bottom plate 43, and reducing the risks of mutual interference and circuit short circuit.
  • the frame cover 42 is fixed on the top surface of the frame body 41 so as to encapsulate the drive assembly 20 with the frame body 41 to reduce dust and other dirt falling between the drive assembly 20 and the frame body 41 risks of.
  • the frame cover 42 has a through hole, the through hole of the frame cover 42 is suitable for providing the incident light of the optical lens 10, and the optical lens 10 can pass through, so that the optical lens 10 protrudes above the The frame cover 42 is described.
  • the outer frame 40 also includes a conductive cloth 44 attached to the bottom surface of the frame bottom plate 43 .
  • the conductive cloth 44 can cover the through hole of the frame bottom plate 43, so that dirt such as dust will not enter the camera module.
  • the conductive cloth 44 may also include a conductive cloth side portion 441, and the conductive cloth 44 is further attached to the side of the frame body 41 through the conductive cloth side portion 441.
  • the frame body 41 is made of aluminum, stainless steel, etc.
  • the conductive cloth 44 can be electrically connected to the frame main body 41 to achieve the effects of conduction and electromagnetic shielding.
  • the conductive cloth 44 may include one or more conductive cloth side parts 441, in a specific example of the present application, the number of the conductive cloth side parts 441 is four, and are respectively distributed on the four sides of the frame main body 41 .
  • the outer frame 40 further includes an insulating sheet 45 , and the insulating sheet 45 is disposed between the first connecting strip hard plate 3122 and the frame main body 41 .
  • the material of the frame body 41 is a conductive material, there is a risk of contact between the frame body 41 and the first hard board, thereby causing a short circuit of the first hard board, so the insulating sheet 45 is arranged on the The above-mentioned risk can be reduced between the first connecting strip hard plate 3122 and the frame main body 41 .
  • the insulating sheet 45 can be glued and fixed on the inside of the frame main body 41, or can be glued and fixed on the outside of the first connecting strip hard plate 3122, or the insulating sheet 45 can only be placed on the first connecting strip hard plate 3122.
  • a connection is between the hard plate 3122 and the frame main body 41 .
  • the main parts of the first connecting strip and the second connecting strip are arranged on the peripheral side of the optical element of the camera module, so they can be called side connecting strips.
  • the side connecting strip the part bent upward from the side of the main body of the circuit board may be called a bent portion (or called an upwardly bent portion, which may be regarded as a part of the side connecting strip).
  • the part arranged around the optical element of the camera module may be referred to as the main body of the side connection belt.
  • the surface of the main body of the lateral connecting strip may be substantially perpendicular to the surface of the main body of the circuit board.
  • the side connection strips and the main body of the circuit board can be integrally formed, for example, the side connection strips and the main body of the circuit board can be integrally formed through the fabrication process of a rigid-flex board.
  • the main body of the circuit board can be a hard board (such as a PCB board)
  • the bent portion of the side connecting strip can be a soft board (such as an FPC board)
  • the main body of the side connecting strip can include a part of a soft board and a part of a hard board.
  • the part of the hard plate can be used to suspend the lateral connecting strip on the static component of the optical actuator (such as the actuator fixing part).
  • an optical element refers to an element used to form an imaging optical system, generally including a plurality of lenses and a photosensitive element (usually a photosensitive chip) for imaging.
  • a plurality of lenses and their supporting components (such as lens barrels) used for imaging can constitute the optical lens.
  • the photosensitive element is located in the photosensitive assembly.
  • the driving assembly 20 constitutes an optical actuator.
  • the optical actuator may be a dual OIS optical actuator, that is, the optical actuator has a lens driving part and a chip driving part.
  • the optical actuator may include an actuator fixed part and an actuator movable part.
  • the actuator fixing part may include a lens driving fixing part and a chip anti-shake fixing part, and the two may be fixed together.
  • the actuator movable part may include a lens driving movable part and a chip anti-shake movable part.
  • the surface of the hard board or connecting strip refers to the surface perpendicular to the thickness direction of the hard board or connecting strip (that is, the normal direction of the surface is consistent with the thickness direction of the hard board).
  • Each hard board or connecting strip includes two surfaces, the inner surface (that is, the side close to the optical axis) is the inner surface, and the outer surface (that is, the side away from the optical axis) is the outer surface.
  • the photosensitive chip and/or optical actuator of the camera module usually have circuits for supplying power and/or realizing certain corresponding functions, and these circuits can be arranged on one or more circuit boards.
  • circuit board structures All substrates in the camera module used for power supply and/or arranging functional circuits and the connecting components of these substrates are referred to as circuit board structures herein.
  • the camera module includes an optical actuator, an optical lens, and a photosensitive component; wherein, the optical actuator has a chip anti-shake part.
  • At least one side of the anti-shake part of the chip has a plurality of conductive pins, and at least one side of the circuit board body has a plurality of undercuts, and each of the undersides is recessed from the side of the circuit board main body to the inside.
  • the conductive pin extends into the side recess, and the conductive pin is electrically connected to the side recess by a welding medium.
  • the chip anti-shake part includes a chip anti-shake fixed part and a chip anti-shake movable part.
  • the plurality of conductive pins are led out from at least one side of the chip anti-shake movable part.
  • the conductive pin is drawn out from the chip anti-shake movable part, and is electrically connected with the side concave part of the main body of the circuit board, while realizing the electrical connection between the anti-shake part of the chip and the main body of the circuit board, the Adapt to chip anti-shake movement.
  • the chip anti-shake movable part and the circuit board main body move together, that is, the chip anti-shake movable part and the circuit board main body are relatively stationary. It should be noted that in FIG.
  • some lines of the chip anti-shake fixed part and the chip anti-shake movable part are omitted in order to make the drawing simple.
  • the The conductive pins electrically connected to the concave part are drawn out from the side of the chip anti-shake movable part (not the chip anti-shake fixed part).
  • the frame bottom plate has a pin avoidance through hole; the pin avoidance through hole may be located directly below the side recess, and the pin avoidance through hole
  • the size of the undercut is greater than the size of the undercut, and the outline of the pin avoidance through hole and the outline of the undercut have a distance of not less than 15 ⁇ m; the depth of the underside is 15-25 ⁇ m.
  • the depth of the side recess is the distance inwardly recessed from the side of the main body of the circuit board.
  • undercuts are provided on the side of the main body of the circuit board, conductive pins (ie, motor pins) are provided on the side of the optical actuator, and then the conductive pins are extended into or through the The side recesses on the side of the main body of the circuit board, and then apply a welding medium from the outside to solder the conductive pins to the side recesses.
  • This design scheme can reduce the height occupied by the soldering of the motor pins, thereby reducing the height of the camera module with the optical actuator.
  • the pin-side recess welding solution is especially suitable for dual OIS camera modules, or camera modules with chip anti-shake function, and can also be suitable for AF modules (ie, auto-focus camera modules).

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Abstract

本发明涉及一种用于摄像模组的线路板,其包括线路板主体和至少两个侧置连接带;所述侧置连接带自所述线路板主体的侧面引出并向上弯折,并在弯折后在所述摄像模组的侧面延伸形成侧置连接带主体;所述侧置连接带具有硬板,在所述的至少两个侧置连接带中,其中一个所述侧置连接带的硬板的外表面具有多个焊盘,另一个所述侧置连接带的硬板具有多个导电通孔,这两个所述侧置连接带的硬板重叠布置;焊接介质附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘。本发明还提供了一种相应的摄像模组。其中还进一步对线路板的结构、位置和组装方式做出改进。本发明能够减小线路板主体和感光芯片的移动阻力,同时提高良品率和生产效率。

Description

用于摄像模组的线路板及相应的摄像模组
相关申请
本申请要求名称为“用于摄像模组的线路板及相应的摄像模组”、于2021年9月10日提交的中国专利申请号为202111060876.1,名称为“摄像模组”、于2021年9月10日提交的中国专利申请号为202111061548.3,名称为“摄像模组”、于2021年9月10日提交的中国专利申请号为202111064738.0,以及名称为“用于摄像模组的线路板及相应的摄像模组”、于2021年9月10日提交的中国专利申请号为202111061007.0的优先权,并在此通过引用包括上述申请的全部内容。
技术领域
本发明涉及摄像模组技术领域,具体地说,本发明涉及一种用于摄像模组的线路板及相应的摄像模组,其中本发明对线路板的结构、位置和组装方式做出了改进。
背景技术
手机摄像模组是智能装备的重要组成部分之一,其在市场上的应用范围和应用量不断增长。随着技术的进步,不管是工作还是生活都在提倡着智能化,而实现智能化的重要前提之一是能够实现与外界环境的良好交互,其中实现良好交互的一个重要方式就是视觉感知,视觉感知依赖的主要是摄像模组。可以说,摄像模组已从默默无闻的智能装备配件转变成为智能装备举足轻重的关键元器件之一。
随着手机摄像模组的成像质量要求越来越高,镜头的体积和重量越来越大,对马达(即光学致动器)的驱动力要求也越来越高。而当前电子设备(例如手机)对摄像模组的体积也有很大的限制,马达的占用体积随着镜头的增大而相应的增加。换句话说,在镜头向更大体积、更大重量发展的趋势下,马达所能提供的驱动力却难以相应地增加。在驱动力受限的前提下,镜头越重,马达能够驱动镜头移动的行程越短,影响防抖能力。另一方面,镜头越重,马达能够驱动镜头移动的速度也越慢,镜头到达预定的补偿位置的时间也越长,这也会影响防抖效果。
为克服上述缺陷,本申请人提出了一种双OIS马达(OIS为光学图像稳定的英文缩写,有时也称为光学防抖),该马达具有两个部分,其中一个部分用于驱动光学镜头移动,另一部分用于驱动感光芯片移动,同时驱动光学镜头和感光芯片移动,可以达到更好的防抖效果。然而,传统方案中,感光芯片贴附于线路板上,线路板上的连接带会对感光芯片的移动造成较大的阻力。具体来说,传统方案中,线路板通常是软硬结合板,其中硬板部分是线路板的主体部分,软板部分从主体部分的侧面引出,形成一连接带,该连接带的末端(即自由端)可以设置一连接器,用于与手机主板插接。例如连接带末端的连接器可以是针脚阵列状的,手机主板上设置对应的插座形的连接器,通过针脚和插座的插接来实现摄像模组的线路板与手机主板的电连接。上述传统的线路板的连接带的一端是固定于手机主板的,当感光芯片移动时,线路板主体也会随之移动,而其侧面的连接带却会被其连接器端所拉扯,从而形成较大的阻力。在防抖移动中,连接带的阻力将导致光学致动器需要提供更大的驱动力,不利于摄像模组的小型化。另一方面,连接带的阻力是不规则的,还可能导致防抖移动的准确度下降。再者,双OIS马达具有更复杂的马达结构,导致线路板所需的布线面积增加,如果采用传统的堆叠更多的PCB板层次的方案来增加布线面积,将导致摄像模组的高度增加。
进一步地,申请人提出了一种在线路板主体的对称的两个侧面分别引出侧置连接带的方案来克服上述缺陷。这两个侧置连接带的表面大致垂直于线路板主体的表面,侧置连接带与线路板主体通过向上弯折的软板形成弯折部,侧置连接带可以悬挂在光学致动器的固定部上。这种新的线路板设计方案可以减小用于连接手机主板的连接带对线路板主体移动所带来的阻力。然而这种全新的线路板结构在实际组装时仍存在良品率低、生产效率不足等诸多问题。因此,有必要对该线路板的结构做出进一步地优化,以便在减小连接带阻力的同时,提升摄像模组的良品率和生产效率。例如可以通过将该线路板结构设计成更适合自动化生产的形态,通过自动化生产来提升生产效率。又例如通过分析和寻找影响摄像模组良品率的主要原因,来对摄像模组及其线路板结构的形态加以改进,最终使得摄像模组成品的良品率提升。
进一步地,摄像模组的高度方向通常是手机等电子设备的厚度方向,因此摄像模组的高度直接影响到手机或其他搭载该摄像模组的电子设备的厚度。对 于双OIS功能的摄像模组来说,由于光学致动器需要同时配置芯片防抖部和镜头防抖部,因此在高度方向上可能占用较大的空间。因此当前迫切需要一种能够减小摄像模组高度的解决方案。
发明内容
本发明的目的在于,克服现有技术的不足,提供一种可减小线路板主体和感光芯片的移动阻力、良品率高且生产效率高的线路板及摄像模组解决方案。
为解决上述技术问题,本发明提供了一种用于摄像模组的线路板,其包括线路板主体和至少两个侧置连接带。所述线路板主体具有垂直于所述摄像模组的光轴的表面和平行于所述光轴的多个侧面。所述侧置连接带自所述线路板主体的侧面引出并向上弯折,并在弯折后在所述摄像模组的侧面延伸形成侧置连接带主体;所述侧置连接带具有硬板,在所述的至少两个侧置连接带中,其中一个所述侧置连接带的硬板的外表面具有多个焊盘,另一个所述侧置连接带的硬板具有多个导电通孔,这两个所述侧置连接带的硬板重叠布置;焊接介质附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘。
其中,所述多个侧面包括第一侧面、与所述第一侧面相对的第二侧面、与所述第一侧面相邻的第三侧面和与所述第三侧面相对的第四侧面。所述侧置连接带包括:第一连接带,其包括第一连接带软板和第一连接带硬板,所述第一连接带软板自所述线路板主体的所述第一侧面引出并向上弯折,然后沿着所述第一侧面延伸,再弯折至所述第三侧面,所述第一连接带硬板位于所述第三侧面并且所述第一连接带硬板的侧面与所述第一连接带软板连接,所述第一连接带硬板的表面平行于所述光轴;以及第二连接带,其包括第二连接带软板和第二连接带硬板,所述第二连接带软板自所述线路板主体的所述第二侧面引出并向上弯折,然后沿着所述第二侧面延伸,再弯折至所述第三侧面,所述第二连接带硬板位于所述第三侧面并且所述第二连接带硬板的侧面与所述第二连接带软板连接,所述第二连接带硬板的表面平行于所述光轴;其中,所述第一连接带硬板位于所述第二连接带硬板的外侧,所述第一连接带硬板具有多个导电通孔,所述第二连接带硬板的外表面具有多个焊盘,所述导电通孔和所述焊盘通过焊接介质连接,所述焊接介质在熔化状态下喷射进入并穿过所述导电通孔,并且在冷却后附着在所述焊盘和所述导电通孔以将所述导电通孔和所述焊盘电连接。
其中,所述第一连接带硬板与所述第二连接带硬板之间通过黏合介质粘接;所述第一连接带硬板的内表面和所述第二连接带硬板的外表面之间具有不大于100μm的间隙。
其中,所述焊接介质在熔化状态下以喷射流的形式进入所述导电通孔并附着于所述导电通孔的侧壁,并且所述焊接介质穿过所述导电通孔并接触所述焊盘;并且所述焊接介质在固化后构成跨越所述第一连接带硬板的内表面和所述第二连接带硬板的外表面之间间隙的连接件;所述焊接介质与所述导电通孔的一部分孔壁之间保留有孔隙。
其中,所述导电通孔的孔壁上附着有金属层,所述金属层为金属镀层。
其中,所述金属层为环形金属层。
其中,所述金属层附着在所述导电通孔的一部分孔壁上,形成不封闭的金属层。
其中,所述第一连接带硬板中,所有的所述导电通孔的所述不封闭的金属层均布置在所述导电通孔的同一侧。
其中,所述第一连接带硬板中,所有的所述导电通孔的所述弧形金属层均布置在所述导电通孔的下侧。
其中,所述焊接介质为锡或者含锡焊接材料。
其中,所述线路板还包括自所述第一连接带硬板的下侧面引出并向外弯折而形成的第三连接带,所述第三连接带的表面垂直于所述光轴,并且所述第三连接带的自由端具有连接器,所述连接器适于与搭载所述摄像模组的电子设备的主板插接。
根据本申请的另一方面,还提供了一种摄像模组,其包括:外框架和容纳在所述外框架内的光学镜头、光学致动器、感光芯片和前述任一方案中所述的线路板;其中,所述感光芯片固定于所述的线路板的所述线路板主体,所述光学致动器适于驱动所述光学镜头和/或所述感光芯片移动;所述光学致动器包括致动器固定部,所述侧置连接带设置在所述外框架和所述致动器固定部之间的间隙。
其中,所述感光芯片贴附于所述线路板主体的上表面;所述线路板上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座和所述线路板主体构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
其中,所述线路板主体的中央具有中央通孔,所述线路板主体的下表面贴附一补强板,所述感光芯片贴附于所述补强板的上表面并且所述感光芯片置于所述中央通孔中;所述线路板主体上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座、所述线路板主体和所述补强板构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
其中,所述光学致动器还包括芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述致动器固定部移动,所述第一连接带硬板和所述第二连接带硬板均直接或间接地固定于所述致动器固定部。
其中,所述光学致动器还包括芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述补强板和所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述致动器固定部移动,所述第一连接带硬板和所述第二连接带硬板均直接或间接地固定于所述致动器固定部。
其中,所述光学致动器还包括镜头驱动可动部,所述光学镜头安装于所述镜头驱动可动部,并且适于在所述镜头驱动可动部的带动下相对于所述致动器固定部移动。
其中,所述致动器固定部的外侧面具有向外侧凸起的凸柱,所述侧置连接带的所述硬板具有挂孔,所述凸柱穿过所述挂孔,以将所述侧置连接带悬挂于所述致动器固定部。
与现有技术相比,本申请具有下列至少一个技术效果:
1.本申请的一些实施例中,摄像模组的线路板主体从不同侧边引出的多条侧置连接带,并且这些侧置连接带在摄像模组的侧面合龙,侧置连接带的硬板可以悬挂于致动器固定部(致动器固定部可以包括固定在一起的芯片防抖固定部和镜头驱动固定部),这种设计可以显著地减小连接带对线路板主体移动所造成的阻力,特别适合于具有芯片防抖功能的摄像模组。进一步地,本申请中,以一种创新的非插接方式来实现侧置连接 带合龙处的电连接,从而防止插接过程中对光学致动器或光学元件造成侧向挤压而导致摄像模组的成像品质下降。
2.本申请的一些实施例中,对于需要电连接的两个侧置连接带,焊接介质可以以高温喷射流的形式自外侧注入并穿过所述导电通孔,焊接介质冷却后可以附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘,从而以非插接的方式实现侧面的两个侧置连接带的电连接。本文中,对于设置在摄像模组侧面的各类板状部件,其靠近摄像模组光轴的一侧为内侧,背离所述光轴的一侧为外侧。
3.本申请的一些实施例中,所述导电通孔可以仅在其孔壁的部分区段布置易于与焊接介质融合的导电层,这样焊接介质可以仅附着在导电通孔孔壁的部分区段,而其余区段则留下空隙,以便从外侧透过该空隙观察焊接介质是否接触到焊盘,从而帮助提升良品率。
4.本申请的一些实施例中,两个侧置连接带的硬板之间可以通过双面胶粘结,两个硬板之间可以具有100μm以下的间隙。也就是说,在焊接过程中,不需要依靠外部器械将这两个硬板压紧,有助于避免对光学致动器或光学元件侧向挤压而导致摄像模组的成像品质下降,同时还便于组装,有助于提升生产效率。
5.本申请的一些实施例中,所述焊接介质不堵塞所述导电通孔,在导电通孔孔壁的至少一个区段上,所述焊接介质不连接所述导电通孔的孔壁。这样,即焊接介质不堵塞导电通孔,使得位于内侧的硬板的焊盘可以暴露于外界,从而提供焊盘状态的观察通道。操作员可以通过肉眼观察焊接介质是否有效接触到焊盘,如果未效接触到焊盘,可以判定为次品(NG品)。
6.本申请的一些实施例中,可以通过布置在外侧的拍摄装置透过所述导电通孔孔壁与焊接介质之间的空隙来拍摄焊盘区域的图像,基于AI算法自动识别焊接介质是否接触到焊盘,进而采取措施来提升良品率。
7.本申请的一些实施例中,摄像模组的线路板结构中具有至少两个侧置硬板,这些侧置硬板基于导电通孔-焊盘结构实现电连接。相比传统的连 接器插接方式的电连接,这种新的连接方式可以避免插接过程中对光学致动器或光学元件造成侧向挤压而导致摄像模组的成像品质下降。
8.本申请的一些实施例中,线路板结构不仅可以布置在感光芯片的下方,还可以布置在光学镜头、光学致动器和感光组件周围的空间,例如在一些实施例中,部分的线路板结构可以布置在致动器固定部与外框架之间的间隙处,从而可以在不增加摄像模组的高度的同时增加线路板结构的布线面积。
9.本申请的一些实施例中,对于需要电连接的两个侧置连接带,焊接介质可以以高温喷射流的形式自外侧注入并穿过所述导电通孔,焊接介质冷却后可以附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘,从而以非插接的方式实现侧面的两个侧置连接带的电连接。本文中,对于设置在摄像模组侧面的各类板状部件,其靠近摄像模组光轴的一侧为内侧,背离所述光轴的一侧为外侧。
10.本申请的一些实施例改进了感光组件的线路板与马达(光学致动器)引脚的连接结构,将传统的焊盘-针脚式焊接结构,改进为侧凹部-针脚式焊接结构,从而减小马达引脚焊接结构所占用的模组高度方向上的空间,进而降低摄像模组的高度。
11.本申请的一些实施例特别适合用于双OIS摄像模组,双OIS摄像模组的光学致动器具有芯片防抖部和镜头防抖部这两套防抖结构,芯片防抖部通常需要设置在非常接近于感光芯片的位置处,因此通过在线路板的侧面设置侧凹部,可以对马达引脚进行避让,从而有效地减小马达引脚焊接结构所占用的模组高度方向上的空间。
12.本申请的一些实施例中,侧凹部-针脚式焊接结构可以与悬挂式线路板结构配合使用,悬挂式线路板结构中,线路板主体的表面垂直于摄像模组的光轴,线路板悬挂部可以包括一或多个硬板,该硬板的表面平行于摄像模组的光轴并悬挂于光学致动器的固定部。其中,线路板主体的两个对称的侧面(例如第一侧面和第二侧面)可以分别引出软板并向上弯折形成两个连接带,连接带末端可以设置所述的硬板并构成所述的线路板悬挂部,悬挂部的硬板可以设置在第三侧面。多个硬板可以在第 三侧面重叠设置并通过导电通孔-焊盘结构实现电连接。本申请中的侧凹部-针脚式焊接结构则可以设置在线路板主体的第四侧面,即与第三侧面相对的侧面。这种设计高效合理地利用了线路板主体的四个侧面的空间,从而使得摄像模组的内部布局更加紧凑,有助于摄像模组的小型化。
13.本申请的一些实施例中,所述线路板主体下方可以具有底板(该底板是摄像模组外框架的一部分),该底板可以设置位于所述侧凹部的正下方的引脚避让通孔,从而避免在重力作用下流动到马达引脚底端的焊接介质与底板接触,进而避免短路造成的产品不良问题。
14.本申请的一些实施例中,马达引脚可以倾斜布置,从而减少马达引脚所占用的高度方向上的尺寸,进而减小摄像模组的高度。
15.本申请的一些实施例中,在悬挂式线路板结构的基础上,在线路板主体的底面贴附补强板,并通过补强板边缘区域的补强板弯部来托住侧置连接带的软板弯折部,从而进一步地减小线路板主体的移动阻力,进一步地降低了感光组件移动所需的驱动力,并提升了驱动精度。
附图说明
图1示出了本申请一个实施例的摄像模组的立体爆炸图;
图2示出了本申请一个实施例的摄像模组的立体示意图;
图3示出了本申请一个实施例中的光学致动器的芯片驱动部分的立体示意图;
图4示出了本申请一个实施例中的光学致动器的镜头驱动部分的立体示意图;
图5示出了本申请一个实施例中的光学致动器的立体示意图;
图6示出了本申请一个实施例中的光学致动器在仰视视角下的示意图;
图7示出了本申请一个实施例中的悬挂式线路板及其所搭载的感光芯片的立体示意图;
图8示出了本申请一个实施例中的悬挂式线路板及其所搭载的感光芯片的立体剖视图;
图9示出了本申请一个实施例中的悬挂式线路板及其所搭载的感光芯片的俯视示意图;
图10示出了本申请一个实施例中的悬挂式线路板在展平状态下的俯视示意图;
图11示出了本申请一个实施例中的摄像模组去除外框架后的立体示意图;该图中位于外框架内部的悬挂式线路板与光学致动器的位置关系被显现出来;
图12a示出了本申请一个实施例中的导电通孔具有环形金属层的内外层硬板电连接的示意图;
图12b示出了本申请另一个实施例中的导电通孔具有不封闭金属层的内外层硬板电连接的示意图;
图12c示出了本申请另一个实施例中具有不封闭金属层的导电通孔的硬板的示意图;
图13示出了本申请一个实施例中的贴附补强板的悬挂式线路板的展平状态下的俯视示意图;
图14示出了本申请一个实施例中的补强板和悬挂式线路板的弯折后状态下的侧视示意图;
图15示出了本申请一个实施例中的补强板和悬挂式线路板的弯折后状态下的立体示意图;
图16示出了本申请一个实施例中的线路板具有侧凹部的摄像模组的立体示意图;
图17示出了本申请一个实施例中的线路板侧凹部与光学致动器的导电引脚电连接的局部示意图;
图18示出了本申请一个实施例中的具有外框架的摄像模组的立体示意图;
图19示出了本申请一个实施例中的增加了框架盖体后的摄像模组的立体示意图;
图20示出了本申请一个实施例中的框架底板及悬挂式线路板的位置关系;
图21示出了本申请一个实施例中的导电布、框架底板及悬挂式线路板的位置关系。
具体实施方式
为了更好地理解本申请,将参考附图对本申请的各个方面做出更详细的说明。应理解,这些详细说明只是对本申请的示例性实施方式的描述,而非以任何方式限制本申请的范围。在说明书全文中,相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。
应注意,在本说明书中,第一、第二等的表述仅用于将一个特征与另一个特征区分开来,而不表示对特征的任何限制。因此,在不背离本申请的教导的情况下,下文中讨论的第一主体也可被称作第二主体。
在附图中,为了便于说明,已稍微夸大了物体的厚度、尺寸和形状。附图仅为示例而并非严格按比例绘制。
还应理解的是,用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”,当在本说明书中使用时表示存在所陈述的特征、整体、步骤、操作、元件和/或部件,但不排除存在或附加有一个或多个其它特征、整体、步骤、操作、元件、部件和/或它们的组合。此外,当诸如“...中的至少一个”的表述出现在所列特征的列表之后时,修饰整个所列特征,而不是修饰列表中的单独元件。此外,当描述本申请的实施方式时,使用“可以”表示“本申请的一个或多个实施方式”。并且,用语“示例性的”旨在指代示例或举例说明。
如在本文中使用的,用语“基本上”、“大约”以及类似的用语用作表近似的用语,而不用作表程度的用语,并且旨在说明将由本领域普通技术人员认识到的、测量值或计算值中的固有偏差。
除非另外限定,否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是,用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义,并且将不被以理想化或过度正式意义解释,除非本文中明确如此限定。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
下面结合附图和具体实施例对本发明做进一步地描述。
如图1-21所示,根据本申请一个实施例的摄像模组1被阐明,其包括感光 组件30、被保持于所述感光组件30的感光路径上的光学镜头10、用于驱动所述感光组件30移动的驱动组件20,以及,用于封装的外框架40。其中,所述驱动组件20底面与所述感光组件30固定连接,以驱动所述感光组件30移动,所述驱动组件20中间具有一通孔,所述驱动组件20的通孔用于容置并固定所述光学镜头10,并提供所述光学镜头10通光通道,使被所述光学镜头10折射的光线通过并入射至所述感光组件30。其中,所述外框架40封装所述驱动组件20和所述感光组件30于其内,提供所述驱动组件20固定位以固定所述驱动组件20,从而使所述感光组件30被悬持在所述外框架40内。
所述光学镜头10被保持于所述感光组件30的感光路径上以采集外界成像光线。相应地,所述光学镜头10包括镜筒11和被安装于所述镜筒11内的镜片组12,所述镜片组12包括至少一光学镜片,所述至少一光学镜片的数量并不受限。
所述驱动组件20包括芯片驱动部分21,所述芯片驱动部分21包括芯片防抖部211,所述芯片防抖部211适于驱动所述感光组件30在X方向轴和Y轴方向上平移和/或绕Z轴方向旋转,以实现所述感光组件30的平移防抖和/或旋转防抖;或者,所述芯片防抖部211适于驱动所述感光组件30在绕X轴方向和绕Y方向旋转,以实现所述感光组件30的倾斜防抖。其中,在本申请的一个实施例中,所述X轴方向和所述Y轴方向相互垂直,所述Z轴方向垂直于所述X轴方向和所述Y轴方向所在平面,换言之,X轴、Y轴和Z轴构成了三维立体坐标系。
所述芯片防抖部211包括芯片防抖固定部2111、芯片防抖可动部2112及用于驱动所述芯片防抖可动部2112相对于所述芯片防抖固定部2111移动的驱动元件,所述驱动元件分别连接所述芯片防抖可动部2112和所述芯片防抖固定部2111。所述芯片防抖可动部2112与所述感光组件30固定,从而所述驱动元件驱动固定于所述芯片防抖可动部2112的所述感光组件30移动。进一步,所述芯片防抖部211还可以包括悬挂系统,所述芯片防抖可动部2112通过所述悬挂系统悬持在所述芯片防抖固定部2111中,所述悬挂系统可以被实施为弹片、悬丝、滚珠等,本申请实施例不受悬挂系统类型的限制。
在本申请的一个实施例中,所述芯片防抖部211可以是音圈马达、压电马 达、SMA(形状记忆合金,Shape Memory Alloy)马达等类型的驱动马达。
当所述芯片防抖部211被实施为音圈马达时,所述驱动元件被实施为线圈-磁石对,即,驱动所述芯片防抖可动部2112移动的驱动力由线圈和磁石之间的电磁作用产生。所述线圈-磁石对中的线圈和磁石分别适于被设置在所述芯片防抖可动部2112和所述芯片防抖固定部2111上。即,可以是所述线圈-磁石对中的线圈被固定设置在所述芯片防抖可动部2112,所述线圈-磁石对中的磁石被固定设置在所述芯片防抖固定部2111,这样,可以减小对驱动元件的驱动力需求;也可以是所述线圈-磁石对中的磁石被固定设置在所述芯片防抖可动部2112,所述线圈-磁石对中的线圈被固定设置在所述芯片防抖固定部2111,这样,可以简化线圈的通电方式。所述线圈-磁石对的数量可以为一个或者多个,围绕所述芯片防抖可动部2112设置,优选地,所述线圈-磁石对的数量可以为两个、三个或者四个,位于所述芯片防抖可动部2112相邻的侧面。
当所述芯片防抖部211被实施为SMA马达时,所述驱动元件被实施为SMA(形状记忆合金)线,形状记忆合金是一种在加热升温后能完全消除其在较低的温度下发生的变形,恢复其变形前原始形状的合金材料。举例来说,当形状记忆合金在低于相变态温度下,受到一有限度的塑性变形后,可通过加热的方式,使其恢复到变形前的原始形状,其中,可以通过给SMA线通电实现SMA线的加热。
如图3所示,在本申请的一个实施例中,所述芯片防抖部211四侧分别设有一组SMA线2113,每组SMA线2113中包括至少一根SMA线,前述所述芯片防抖部211的四侧中的相邻两侧呈垂直(大致垂直)设置,而所述芯片防抖部211的四侧中的相对两侧呈平行(大致平行)设置。具体地,在所述芯片防抖部211四侧的每一侧,所述芯片防抖固定部2111分别具有一第一固定端21111,所述芯片防抖可动部2112具有一第二固定端21121,所述一组SMA线2113的两端分别通过所述第一固定端21111固定于所述芯片防抖固定部2111和通过所述第二固定端21121固定于所述芯片防抖可动部2112,从而所述一组SMA线2113驱动所述芯片防抖可动部2112相对于所述芯片防抖固定部2111移动,从而位于所述芯片防抖部211四侧的四组SMA线2113驱动所述芯片防抖可动部2112相对于所述芯片防抖固定部2111在相垂直的X轴和Y轴方向上平移, 或者还可以驱动所述芯片防抖可动部2112相对于所述芯片防抖固定部2111绕垂直于X轴和Y轴所在平面的Z轴旋转,以使得所述芯片防抖部211可以驱动连接固定于所述芯片防抖可动部2112的感光组件30在X、Y轴方向平移和/或绕Z轴方向旋转。进一步地,所述第一固定端21111和所述第二固定端21121还可以具有导电功能,以提供给所述SMA线2113电流,以实现SMA线的加热,使得SMA线形变。
所述芯片防抖部211还包括芯片防抖电连接部2114,所述芯片电连接点与驱动元件,即所述SMA线2113电连接,从而通过所述芯片防抖电连接部2114提供所述芯片防抖部211驱动电源。所述芯片防抖电连接部2114位于所述芯片防抖部211一侧,其进一步包括多个引脚21141,例如所述芯片防抖电连接部2114包括位于所述芯片防抖部211一侧的5个引脚21141,所述多个引脚21141的之间相互间隔,呈倒“L”型固定设置在芯片防抖部211的芯片防抖固定部2111一侧。
所述驱动组件20还包括镜头驱动部分22,所述镜头驱动部分22适于驱动所述光学镜头10移动。所述镜头驱动部分22包括镜头对焦部221,所述镜头对焦部221适于驱动所述光学镜头10在Z轴方向平移,以调整所述光学镜头10相对所述感光组件30的距离,实现所述光学镜头10的对焦功能。进一步地,所述镜头驱动部分22还可以包括镜头防抖部222,所述镜头防抖部222适于驱动所述光学镜头10在X轴和Y轴方向上平移和/或绕Z轴方向旋转,以实现所述光学镜头10的平移防抖和/或旋转防抖;或者,所述镜头防抖部222适于驱动所述光学镜头10在绕X轴方向和绕Y方向旋转,以实现所述光学镜头10的倾斜防抖。需指出的是,所述镜头驱动部分22可以仅包含所述镜头对焦部221或者所述镜头防抖部222;所述镜头驱动部分22还可以同时包括所述镜头对焦部221和所述镜头防抖部222,从而所述镜头驱动部分22不仅可以实现镜头对焦功能还可以实现镜头防抖功能。
在本申请的一个实施例中,所述镜头对焦部221和所述镜头防抖部222可以是音圈马达、压电马达、SMA(形状记忆合金,Shape Memory Alloy)马达等类型的驱动马达。
如图4所示,在本申请的一个实施例中,所述镜头驱动部分22包括镜头驱 动固定部2201、镜头驱动可动部2202及用于驱动所述镜头驱动可动部2202相对于所述镜头驱动固定部2201移动的驱动元件(未示出),所述驱动元件分别连接所述镜头驱动可动部2202和所述镜头驱动固定部2201。所述镜头驱动可动部2202与所述光学镜头10固定,从而所述驱动元件驱动固定于所述镜头驱动可动部2202的所述光学镜头10移动。进一步,所述镜头驱动部分22还可以包括悬挂系统(未示出),所述镜头驱动可动部2202通过所述悬挂系统悬持在所述镜头驱动固定部2201中,所述悬挂系统可以被实施为弹片、悬丝、滚珠等中的一种或者多种,本申请不受悬挂系统类型的限制。
在本申请的一个实施例中,所述驱动元件驱动所述镜头驱动可动部2202相对于所述镜头驱动固定部2201移动适于实现镜头对焦或者镜头防抖功能,从而所述驱动元件、所述镜头驱动可动部2202及所述镜头驱动固定部2201组成前述所述镜头对焦部221或者所述镜头防抖部222。或者,所述镜头驱动可动部2202可以进一步包括第一镜头驱动可动部2202、位于所述第一镜头驱动可动部2202内侧的第二镜头驱动可动部2202以及用于驱动所述第二镜头驱动可动部2202相对所述第一镜头驱动可动部2202移动的驱动元件。从而,位于所述镜头驱动固定部2201与所述镜头驱动可动部2202之间的所述驱动元件驱动所述镜头驱动可动部2202移动以实现镜头防抖功能,位于所述第一镜头驱动可动部2202和所述第二镜头驱动可动部2202之间的所述驱动元件驱动所述第二镜头驱动可动部2202移动以实现镜头对焦功能;或者,也可以是位于所述镜头驱动固定部2201与所述镜头驱动可动部2202之间的所述驱动元件驱动所述镜头驱动可动部2202移动以实现镜头对焦功能,而位于所述第一镜头驱动可动部2202和所述第二镜头驱动可动部2202之间的所述驱动元件驱动所述第二镜头驱动可动部2202移动以实现镜头防抖功能。
所述镜头驱动部分22包括位于侧面的镜头驱动电连接部2203,所述镜头驱动电连接部2203与所述镜头驱动部分22的驱动元件电连接,并提供所述镜头驱动部分22驱动电源。所述镜头驱动电连接部2203包括多个镜头驱动焊盘22031,所述多个镜头驱动焊盘22031呈两行排列,以减小所述镜头驱动电连接部2203的长度,例如,位于上面一行的所述镜头驱动焊盘22031的数量为4个,位于下面一行的所述镜头驱动焊盘22031的数量也为4个。
所述镜头驱动部分22的所述镜头驱动固定部2201进一步包括至少二悬挂部,所述至少二悬挂部位于所述镜头驱动固定部2201的侧面,在本申请的一个实施例中,所述至少二悬挂部位于所述镜头驱动固定部2201与所述镜头驱动电连接部2203的同侧。所述至少二悬挂部的数量可以为二,分别是第一悬挂部22011和第二悬挂部22012,所述第一悬挂部22011和所述第二悬挂部22012分别在所述镜头驱动电连接部2203的两侧从所述镜头驱动固定部2201向外延伸。所述至少二悬挂部的作用将在后续对感光组件30的描述中展开,在此先不赘述。
在本申请中,所述镜头驱动部分22与所述芯片驱动部分21之间可以是相互分离的,也可以是相互固定的,所述镜头驱动部分22可以通过所述镜头驱动固定部2201与所述芯片驱动部分21的芯片驱动固定部(例如芯片防抖固定部2111)之间的粘接固定或者一体成型从而固定于所述芯片驱动部分21。
图5-6示出了本申请中,所述驱动组件20可以包括所述镜头驱动部分22和所述芯片驱动部分21。所述芯片驱动部分21的四角区域向内凹形成四个凹部,使得所述镜头驱动部分22的四角区域向下突出形成四个凸部,伸入至所述芯片驱动部分21的四个凹部内,其中,所述镜头驱动部分22的四个凸部中的三个凹部内分别固定有一感测磁石2311,即所述镜头驱动部分22的四角区域固设有三个感测磁石2311,所述感测磁石2311用于提供图7中所示出的所述感光组件30上的位置传感器2312磁场,从而检测感光组件30的位移,所述位置传感器2312适于通过感测磁场的变化判断移动的方向及距离。在本申请的其他实施方式中,所述感测磁石2311的数量也可以为一、二或者四等其他数量。
图5进一步示出了所述芯片驱动部分21的芯片防抖电连接部2114与所述镜头驱动部分22的镜头驱动电连接部2203分别位于在所述驱动组件20相对的两侧。图6进一步示出,所述镜头驱动部分22的所述镜头对焦部221位于所述镜头防抖部222的内侧,所述芯片驱动部分21中间的通孔尺寸大于所述镜头驱动部分22中间的通孔尺寸,从而提供所述光学镜头10没有遮挡的通光路径,从而减少暗角的问题发生。
如图7-12所示,在本申请的一个实施例中,所述感光组件30包括线路板31、感光芯片32、底座34及滤光元件35。
所述感光芯片32包括感光区321和非感光区322321,所述感光芯片32通过位于所述非感光区322321的感光芯片焊盘电连接于所述线路板31,例如,所述感光芯片32可以通过打金线、引线键合、焊接、FC工艺(芯片倒装)、RDL(再布线层技术)等方式电连接于所述线路板31。所述感光芯片32适于通过黏合介质固定于所述线路板31上表面(所述线路板31朝向镜头一侧定义为上表面),或者,所述感光芯片32被设置于所述线路板31的线路板通孔3111中,从而减少线路板31厚度对所述感光组件30厚度的影响,以降低所述摄像模组高度。
所述底座34被设置于所述线路板31的所述芯片感光部分上,用于支撑其他部件。在本申请一个具体的示例中,所述底座34被实施为单独成型的塑料支架,其通过黏合介质附着于所述线路板31的表面,并用于支撑其他部件。当然,在本申请其他示例中,所述底座34还能以其他方式形成于所述线路板31,例如,所述底座34被实施为模塑底座,其通过模塑工艺一体成型于所述线路板31的预设位置,对此,并不为本申请所局限。
在本申请的一个实施例中,所述滤光元件35被保持于所述感光芯片32的感光路径上,用于对进入所述感光芯片32的成像光线进行过滤。在一个具体的示例中,所述滤光元件35被安装于所述底座34上且至少对应于所述感光芯片32的感光区321。值得一提的是,在本申请其他示例中,所述滤光元件35可通过其他支撑件被间接地安装于所述底座34上。并且,在本申请的其他示例中,所述滤光元件35还能够被安装于所述摄像模组1的其他位置,例如,所述滤光元件35形成于所述光学镜头10内(例如,作为一层滤光膜附着于所述光学镜头10的某片光学镜片的表面),对此,并不为本申请所局限。
所述线路板31包括线路板主体311、连接带和连接器部分314。其中,所述线路板主体311用于安装和电连接所述感光芯片32及电子元件33,所述电子元件33包括电容、电阻等无源器件以及驱动芯片等有源器件,所述连接带电连接并固定所述线路板主体311和所述连接器部分314,所述连接器部分314用于与移动电子设备电连接以导出所述感光芯片32所输出的图像信息。
所述线路板31的所述线路板主体311的四角区域,还固定并电连接有用于感测所述感光组件30移动的位置传感器2312,所述位置传感器2312的数量以 及位置与位于所述驱动组件20的所述感测磁石2311相对应,例如,当所述驱动组件20的四角区域的三角分别设有一所述感测磁石2311时,与所述驱动组件20的四角区域的三角对应的所述线路板31的所述感光芯片32的位置上分别固定并电连接一所述位置传感器2312。
如图7-8,在本申请的一个具体的示例中,所述底座34通过黏合介质固定于所述线路板31的线路板主体311且封装所述感光芯片32于其中,所述感光芯片32位于所述底座34内侧(指偏向所述感光芯片32一侧),所述电子元件33则位于所述底座34的外侧,换言之,所述底座34仅封装所述感光芯片32。当然,在本申请其他示例中,所述底座34还可以封装所述感光芯片32和部分所述电子元件33于其中,另外部分所述电子元件33位于所述底座34的外侧;或者,所述底座34也可以封装所述感光芯片32和全部所述电子元件33于其中。所述底座34仅封装所述感光芯片32于其中时,所述底座34能够防止所述电子元件33上可能存在的灰尘污染所述感光芯片32。
进一步地,如图7-9所示,所述电子元件33的数量为多个,且分布在所述感光芯片32及所述底座34的周围,多个所述电子元件33分布在一个圆形区域中,这与所述芯片防抖部211的所述芯片防抖可动部2112的形状有关。所述芯片防抖可动部2112具有一圆柱形通孔,当所述芯片防抖可动部2112固定于所述线路板主体311时,所述线路板31上预留的空间较少,因此,将所述底座34仅用于封装所述感光芯片32,而使所述多个电子元件33分布在所述底座34的周围,并进一步可以使所述电子元件33分布在一个圆形区域中。通过上述设计,使所述底座34不用封装电子元件33,从而所述底座的长度方向尺寸、宽度方向以及高度方向尺寸降低,可以使所述芯片防抖可动部2112的圆柱形通孔不必因矩形设计的底座34的尺寸而进一步变大,使多个所述电子元件33可以分布在所述底座34和所述芯片防抖可动部2112的圆柱形通孔,从而使所述摄像模组的横向尺寸减小。所述线路板主体311的上表面还可以设有捕尘胶,以捕获摄像模组中的灰尘等脏污,例如所述捕尘胶可以呈环形的设置在所述圆形区域的周侧或者覆盖于多个所述电子元件33。
进一步地,所述线路板主体311中间具有一线路板通孔3111,优选地,所述线路板通孔3111与所述感光芯片32形状相近,例如,所述线路板通孔3111 呈矩形设置,用于容置所述感光芯片32,以降低所述感光组件30的高度。
进一步地,所述感光组件30还包括一补强板37,所述补强板37通过黏合介质固定于所述线路板31的所述线路板主体311的背面(指线路板31远离镜头的一侧,与线路板主体上表面相对),以提供所述线路板主体311支撑和补强作用,所述补强板37可以是钢板、铜板等金属板,也可以是塑料板,对此,并不为本申请所局限。在本申请的一个具体的示例中,所述线路板主体311具有一线路板通孔3111,所述补强板37固定于所述线路板主体311的背面,所述补强板37与所述线路板主体311形成一凹槽,所述感光芯片32通过黏合介质固定于所述补强板37并容置在所述线路板主体311的所述线路板通孔3111中,所述补强板37厚度可以薄于所述线路板主体311,以减小感光组件30高度,且所述补强板37能够提供所述感光芯片32比所述线路板主体311更平整的用于粘接固定的表面。
所述线路板主体311可以是硬板也可以是软板,与所述感光芯片32电连接的所述连接带为软硬结合板。具体地,所述连接带包括第一连接带312和第二连接带313,所述第一连接带312和所述第二连接带313分别从所述线路板主体311两个相对的侧面(为便于描述,这两个相对的侧面可称为第一侧面301和第二侧面302,与所述第一侧面301和所述第二侧面302相邻的是第三侧面303和第四侧面304,所述第三侧面303和所述第四侧面304相对分布,所述第一侧面301、所述第三侧面303、所述第二侧面302和所述第四侧面304沿顺时针方向分布)引出并向上弯折(向上是指向远离所述线路板主体311的方向),并且,所述第一连接带312进一步沿所述第一侧面301向所述第三侧面303方向延伸并向所述第三侧面303方向弯曲,所述第二连接带313进一步沿所述第二侧面302向所述第三侧面303方向延伸并向所述第三侧面303方向弯曲,从而所述第一连接带312与所述第二连接带313在所述第三侧面303固定,构成完整的连接带,所述连接带环绕所述线路板主体311的所述第一侧面301、所述第二侧面302、所述第三侧面303三个侧面布设,进一步地,所述第一连接带312与所述第二连接带313在所述第三侧面303电连接,所述第一连接带312在所述第三侧面303的底部向远离所述线路板主体311一侧弯曲并向远离所述线路板主体311方向延伸,与所述连接器部分314电连接。通过上述所述连接 带结构及设置方式,所述驱动组件20驱动所述线路板主体311移动时,所述连接带产生的阻力相对较少,解决了现有技术中连接带相对线路板主体311在同一平面上的偏折会产生较大的阻力的问题。
所述连接器部分314可以为硬板或者软板,在所述连接器部分314的上表面或者背面电连接一连接器36,通过所述连接器36,所述摄像模组1与移动电子设备电连接以导出所述感光芯片32所输出的图像信息。在本申请的一个示例中,所述连接器部分314还可以进一步电连接其他电子元件,以减少电连接于所述线路板主体311的电子元件33的数量。
具体地,所述第一连接带312包括第一连接带软板3121、第一连接带硬板3122以及第三连接带软板3123,所述第一连接带软板3121分别电连接所述线路板主体311和所述第一连接带硬板3122,所述第三连接带软板3123分别电连接所述第一连接带硬板3122和所述连接器部分314。所述第一连接带软板3121具有一第一弯折部31211和一第二弯折部31212,所述第一连接带软板3121通过所述第一弯折部31211与所述线路板主体311连接并从所述线路板主体311的所述第一侧面301向上弯曲,通过所述第二弯折部31212从所述第一侧面301向所述第三侧面303弯曲,从而所述第一连接带软板3121与位于所述第三侧面303的所述第一连接带硬板3122连接。所述第三连接带软板3123包括一第三弯折部31231,所述第三连接带软板3123通过所述第三弯折部31231与所述第一连接带硬板3122下方连接并从所述第一连接带硬板3122下方向远离所述线路板主体311的方向弯曲,从而所述第三连接带软板3123与所述连接器部分314连接。
即,所述第一弯折部31211位于靠近所述第一侧面301和所述线路板主体311底面相交的位置,所述第二弯折部31212位于靠近所述第一侧面301与所述第三侧面303相交的位置,所述第三弯折部31231位于靠近所述第三侧面303和所述线路板主体311底面相交的位置。
所述第二连接带313包括第二连接带软板3131和第二连接带硬板3132,所述第二连接带软板3131分别电连接所述线路板主体311和所述第二连接带硬板3132。所述第二连接带软板3131具有一第四弯折部31311和一第五弯折部31312,所述第二连接带软板3131通过所述第四弯折部31311与所述线路板主 体311连接并从所述线路板主体311的所述第二侧面302向上弯曲,通过所述第五弯折部31312从所述第一侧面301向所述第三侧面303弯曲,从而所述第二连接带软板3131与位于所述第三侧面303的所述第二连接带硬板3132连接。
即,所述第四弯折部31311位于靠近所述第二侧面302和所述线路板主体311底面相交的位置,所述第五弯折部31312位于靠近所述第二侧面302与所述第三侧面303相交的位置。
以垂直于所述第一侧面301或者所述第二侧面302的方向为X轴方向,以垂直于所述第三侧面303和所述第四侧面304的方向为Y轴方向,X轴方向垂直于Y轴方向,以垂直于X轴方向和Y轴方向所在平面(即所述线路板主体311所在平面)的方向为Z轴方向。所述第一弯折部31211和所述第四弯折部31311适于沿Y轴方向弯曲,以减小所述线路板主体311被所述驱动组件20驱动在X轴方向移动时所述连接带的阻力;所述第二弯折部31212与所述第五弯折部31312适于沿Z轴方向弯曲,以减小所述线路板主体311被所述驱动组件20驱动在Y轴方向移动时所述连接带的阻力。所述第一弯折部31211、所述第四弯折部31311、所述第二弯折部31212及所述第五弯折部31312还适于减小所述线路板主体311被所述驱动组件20驱动在绕X轴方向、绕Y轴方向或者绕Z轴方向转动时连接带(包括第一连接带312和所述第二连接带313)的阻力。
所述第一连接带软板3121在所述第一弯折部31211和所述第二弯折部31212之间,进一步包括两个第一水平部分31213和一个第一倾斜部分31214。所述第一倾斜部分31214连接两个所述第一水平部分31213,通过所述第一倾斜部分31214,使所述第一连接带软板3121从所述第一弯折部31211向所述第二弯折部31212延伸并向上延伸,所述两个第一水平部分31213之间存在高度差;和/或,通过所述第一倾斜部分31214,使所述第一连接带软板3121从所述第一弯折部31211向所述第二弯折部31212延伸并向外(远离线路板主体方向)延伸,所述两个第一水平部分31213所在平面之间存在间隔,所述两个第一水平部分31213所在平面相互平行或者相交。通过上述结构,提供规避空间以规避所述驱动组件20或者所述外框架40,避免相互间的干涉,同时有助于减小所述驱动组件20驱动所述线路板主体311移动时的阻力。
所述第二连接带软板3131在所述第四弯折部31311和所述第五弯折部 31312之间,进一步包括两个第二水平部分31223和一个第二倾斜部分31224。所述第二倾斜部分31224连接两个所述第二水平部分31223,通过所述第二倾斜部分31224,使所述第二连接带软板3131从所述第四弯折部31311向所述第五弯折部31312延伸并向上延伸,两个所述第二水平部分31223之间存在高度差;和/或,通过所述第二倾斜部分31224,使所述第二连接带软板3131从所述第四弯折部31311向所述第五弯折部31312延伸并向外(远离线路板主体方向)延伸,所述两个第二水平部分31223所在平面之间存在间隔,所述两个第二水平部分31223所在平面相互平行或者相交。通过上述结构,提供规避空间以规避所述驱动组件20或者所述外框架40,避免相互间的干涉,同时有助于减小所述驱动组件20驱动所述线路板主体311移动时的阻力。
进一步地,在本申请的一个实施方式中,所述第一弯折部31211和所述第四弯折部31311的内侧和/或外侧贴有塑形层,以使所述第一连接带312在所述第一弯折部31211处和使所述第二连接带313在所述第四弯折部31311处得以保持弯曲;所述第二弯折部31212和所述第五弯折部31312的内侧和/或外侧贴有塑形层,以使所述第一连接带312在所述第二弯折部31212处和使所述第二连接带313在所述第五弯折部31312处得以保持弯曲。所述塑形层可以是铜箔或者其他厚度较薄且有塑形作用的部件。
进一步,图10示出了本申请一个实施例中展平状态的所述线路板31的底面,所述线路板31包括线路板主体311、第一连接带312、第二连接带313及连接器部分314。所述线路板主体311具有一矩形线路板通孔3111,用于容纳感光芯片32,所述线路板主体311的第一侧面301与所述第一连接带312电连接,所述线路板主体311的第二侧面302与所述第二连接带313电连接。
所述第一连接带312包括所述第一连接带软板3121、第一连接带硬板3122和所述第三连接带软板3123,所述第一连接带软板3121包括第一弯折部31211和第二弯折部31212,所述第一连接带软板3121通过所述第一弯折部31211与所述线路板主体311连接并通过所述第二弯折部31212与所述第一连接带硬板3122连接,通过弯折所述第一弯折部31211、所述第二弯折部31212适于弯折所述第一连接带软板3121;所述第三连接带软板3123包括第三弯折部31231,所述第三连接带软板3123通过所述第三弯折部31231与所述第一连接带硬板 3122连接,通过弯折所述第三弯折部31231适于弯折所述第三连接带软板3123。
所述第二连接带313包括所述第二连接带软板3131和所述第二连接带硬板3132,所述第二连接带软板3131包括第四弯折部31311和第五弯折部31312。所述第二连接带软板3131通过所述第四弯折部31311连接于所述线路板主体311,所述第二连接带软板3131与所述第一连接带软板3121分布在所述线路板主体311相对的两侧;所述第二连接带软板3131通过所述第五弯折部31312与所述第二连接带硬板3132连接。通过弯折所述第四弯折部31311和所述第五弯折部31312,适于弯折所述第二连接带软板3131。
通过弯折所述第一连接带软板3121和所述第二连接带软板3131,所述第一连接带硬板3122与所述第二连接带硬板3132在所述线路板主体311的第三侧面303相固定并电连接。图11示出了所述线路板31的所述第一连接带软板3121和所述第二连接带软板3131弯折后的结构。其中,所述第一连接带硬板3122位于外侧,即,所述第二连接带硬板3132位于所述驱动组件20和所述第一连接带硬板3122之间,所述第二连接带硬板3132通过所述第二连接带硬板3132的至少两通孔与所述驱动组件20上的至少二悬挂部定位于所述驱动组件20的侧面(也即第三侧面303),所述第一连接带硬板3122通过所述第一连接带硬板3122的至少两通孔与所述驱动组件20上的至少二悬挂部定位于位于所述驱动组件20侧面(也即第三侧面303)的所述第二连接带硬板3132的外侧。所述驱动组件20上的至少二悬挂部包括分别在所述镜头驱动电连接部2203的两侧从所述镜头驱动固定部2201向外延伸的第一悬挂部22011和第二悬挂部22012,所述第一悬挂部22011穿过所述第二连接带硬板3132上的通孔和所述第一连接带硬板3122上的通孔,所述第二悬挂部22012穿过所述第一连接带硬板3122上的通孔和所述第一连接带硬板3122上的通孔,是所述第一连接带硬板3122和所述第二连接带硬板3132定位于所述驱动组件20。
所述第一连接带硬板3122与所述第二连接带硬板3132之间适于通过黏合介质粘接固定,比如UV胶、UV热固胶、热固胶、双面胶等黏合介质。
进一步地,所述第二连接带硬板3132与所述第一连接带硬板3122电连接,从而所述第二连接带313通过所述第一连接带硬板3122与所述第三连接带软板3123电导通,进而与所述连接器部分314电导通。图8-12c示出了本申请的一 个具体的示例,所述第二连接带硬板3132包括多个连接带焊盘31321,所述连接带焊盘31321位于所述第二连接带硬板3132在所述线路板31弯折后与所述第一连接带硬板3122相邻的一侧,换言之,在图10所示的线路板31展平图中,所述连接带焊盘31321所在第二连接带硬板3132一侧与所述线路板主体311底面同侧。所述第一线路板31硬板包括多个导电通孔,所述多个导电通孔包括多个第一导电通孔31221和多个第二导电通孔31222,当所述线路板31的第一连接带和所述第二连接带313弯折后,所述第一连接带硬板3122的多个所述第一导电通孔31221分别与所述第二连接带硬板3132的多个所述连接带焊盘31321相对,从而适于通过向多个所述第一导电通孔31221内设置电连接介质31322电连接多个所述第一导电通孔31221和多个所述连接带焊盘31321,实现所述第一连接带硬板3122与所述第二连接带硬板3132的电导通。其中,所述电连接介质31322可以为锡球等焊料,并通过激光焊接的方式将所述电连接介质31322与所述第一导电通孔31221固定,与所述连接带焊盘31321固定,即通过焊接的方式使所述第一连接带硬板3122与所述第二连接带硬板3132的电导通。通过上述焊接的方式电连接所述第一连接带硬板3122和所述第二连接带硬板3132,相对传统通过连接器连接的方式,可以避免按压连接器的工序,从而避免驱动组件被压,减少驱动组件不良的产生。
具体地,图12a-图12b示出了所述第一连接带硬板3122与所述第二连接带硬板3132通过电连接介质31322焊接的结构示意图。
如图12a所示,所述连接带焊盘31321位于所述第二连接带硬板3132与所述第一连接带硬板3122之间,所述第一连接带硬板3122的所述第一导电通孔31221内具有一环状导电侧312211,所述第一导电通孔31221的导电侧312211通过所述电连接介质31322与所述连接带焊盘31321固定并电连接,从而实现所述第一连接带硬板3122与所述第二连接带硬板3132的电导通,其中,所述环状导电侧312211可以由设置在所述第一导电通孔31221内的金属镀层实现。
图12b-12c示出了另一种第一导电通孔31221结构,所述第一导电通孔31221由导电侧312211和绝缘侧312212组成,换言之,设置在所述第一导电通孔31221内的金属镀层仅分布在所述第一导电通孔31221侧面的一部分侧面(如图12c中所示,沿垂直所述第一线路板31硬板观察,所述导电侧312211 和所述绝缘侧312212分别位于两侧),进而,使得在焊接时,所述电连接介质31322会偏向所述导电侧312211,所述电连接介质31322仅与所述第一导电通孔31221的导电侧312211接触、固定并电连接,从而可以从所述第一导电通孔31221的绝缘侧312212向所述导电侧312211观察所述电连接介质31322与所述连接带焊盘31321的连接接触情况,观察是否存在虚焊的问题,以减少摄像模组的不良。优选地,在一个所述第一导电通孔31221中,所述导电侧312211与所述绝缘侧312212的所占面积的比为0.8-1.25之间,例如所述导电侧312211与所述绝缘侧312212所占面积相等,从而可以保证所述第一连接带硬板3122与所述第二连接带硬板3132之间的电连接的同时,还可以便于观察虚焊的问题。
进一步地,为便于多个所述第一导电通孔31221与所述连接带焊盘31321之间的焊接情况的观察,优选地,本申请的一个优选实施例中,多个所述第一导电通孔31221中的所述导电侧312211均位于同一侧,多个所述第一导电通孔31221中的所述绝缘侧312212均位于另一侧,例如,多个所述第一导电通孔31221中的所述绝缘侧312212均位于上侧(即远离所述线路板主体311一侧),从而便于从所述摄像模组的上侧观察焊接情况。当然,多个所述第一导电通孔31221中的所述绝缘侧312212也可以均位于所述摄像模组的下侧、左侧或者右侧,或者也可以位于左侧和上侧之间的位置,均可以实现焊接情况肉眼观察。
在焊接过程中,电连接介质31322,例如锡,需要被加热至熔点,与连接带焊盘31321和第一导电通孔31221接触反应,如果温度不足,会导电连接介质31322无法与连接带焊盘31321和第一导电通孔31221反应,从而形成虚焊的问题。通过激光焊接工艺使所述电连接介质31322被喷射在所述连接带焊盘31321和所述第一导电通孔31221之间时,所述连接带焊盘31321和所述第一导电通孔31221之间的距离过长会导致电连接介质31322冷却,因此,优选地,所述连接带焊盘31321和所述第一导电通孔31221之间的间隙小于100μm,所述第一连接带硬板3122与所述第二连接带硬板3132之间的间隙小于100μm。
为减小前述虚焊问题,进一步可以通过二次加热,保证所述电连接介质31322与所述连接带焊盘31321之间、保证所述电连接介质31322与所述第一导电通孔31221之间可以发生反应,进而相互结合,避免虚焊问题的发生。
或者,也可以通过预上锡的方式减小虚焊问题。预上锡是指先在所述连接带焊盘31321上直接设置焊锡(也可以是其他电连接介质),使所述焊锡与所述焊盘之间反应并结合,再将熔融的焊锡通过所述第一导电通孔31221布设在所述连接带焊盘31321和所述第一导电通孔31221之间,实现电导通。所述连接带焊盘31321的材质通常与所述电连接介质31322不同,在焊接时,需要两者在接触面发生反应才能保证稳定结合,而发生反应的过程对温度要求较高,而本申请的一个实施例中,可以通过预上锡的方式使所述连接带焊盘31321的表面设置一层锡,因此,在后续的焊接过程中,焊锡与所述连接带焊盘31321表面的锡易结合,且所述连接带焊盘31321表面与所述第一导电通孔31221之间的距离也被拉近,焊锡的温度在被布设在所述连接带焊盘31321表面时仍能保持较高的温度,进而有较好的焊接效果,且可以降低对焊接工艺的需求,优选地,焊锡的厚度在10-50μm之间,以保持良好的焊接效果。
进一步地,在本申请的一个实施例中,所述驱动组件20与所述线路板31之间的电连接也可以通过上述第一导电通孔-焊盘焊接的方式实现。如图4-5、10-11所示,所述第二连接带硬板3132具有一凹部,从而所述第二连接带硬板3132在弯折并悬挂在所述第一悬挂部22011和所述第二悬挂部22012上时,避让所述驱动组件20的镜头驱动电连接部2203,使所述镜头驱动电连接部2203裸露,从而适于与所述第一连接带硬板3122电连接。具体的,所述镜头驱动电连接部2203上的多个镜头驱动焊盘22031与所述第一连接带硬板3122上的多个所述第二导电通孔31222相对应,并通过电连接介质31322电连接。
所述镜头驱动电连接部2203上的所述多个镜头驱动焊盘22031呈两行排列,以减小所述镜头驱动电连接部2203的长度,例如,位于上面的所述镜头驱动焊盘22031的数量为4个,位于下面的所述镜头驱动焊盘22031的数量也为4个。进一步地,为减少所述镜头驱动电连接部2203在Z轴方向的尺寸,上下两行所述镜头驱动焊盘22031之间相互交错分布,而为提升所述镜头驱动电连接部2203面积的利用率,所述镜头驱动焊盘22031成一侧尺寸大、另一侧尺寸小的形状,即“葫芦”型焊盘,所述镜头驱动焊盘22031靠近所述镜头驱动电连接部2203边缘一侧的尺寸相对更大。
所述镜头驱动电连接部2203为软硬结合板,所述镜头驱动电连接部2203 的软板部分电连接所述镜头驱动部分22的驱动元件与所述镜头驱动电连接部2203的硬板部分,所述多个镜头驱动焊盘22031位于所述镜头驱动电连接部2203的硬板部分,而所述镜头驱动电连接部2203的硬板部分固定在所述镜头驱动部分22的镜头驱动固定部2201的侧面,以保持镜头驱动电连接部2203与外部电源电连接的稳定性。进一步地,所述镜头驱动焊盘22031的外表面低于所述镜头驱动电连接部2203的硬板部分的外表面,以提供所述镜头驱动焊盘22031保护,避免所述镜头驱动焊盘22031被划伤,影响电连接的良率。
在本申请的一个实施例中,所述第一连接带硬板3122上的多个所述第二导电通孔31222也由导电侧312211和绝缘侧312212组成,从而便于观察所述第二导电通孔31222和所述镜头驱动焊盘22031之间的焊接情况。优选地,所述多个第二导电通孔31222的所述导电侧312211均位于同一侧,所述多个第二导电通孔中的所述绝缘侧312212均位于另一侧,例如,多个所述多个第二导电通孔31222中的所述导电侧312211均位于下侧(即靠近所述线路板主体311一侧),从而便于从所述摄像模组的上侧观察焊接情况。当然,多个所述第二导电通孔31222中的所述导电侧312211也可以均位于所述摄像模组的上侧、左侧或者右侧,或者也可以位于右侧和下侧之间的位置,均可以实现焊接情况肉眼观察。
为使所述第二导电通孔31222与所述镜头驱动焊盘22031之间的焊接良率提升,减少虚焊的风险,所述第二导电通孔31222与所述镜头驱动焊盘22031之间的间隙优选小于100μm,即,所述第一连接带硬板3122与所述镜头驱动连接部之间的间隙小于100μm。并且,所述第二导电通孔31222与所述镜头驱动焊盘22031之间也可以通过二次加热或者预上锡方式焊接,当采用预上锡的方式焊接使,焊锡的厚度设置为10-50μm之间,以保持良好的焊接效果。
即,本申请所涉及的导电通孔-焊盘焊接的结构,也可以应用在所述驱动组件20与所述线路板31之间的电连接。所述驱动组件20包括一位于所述驱动组件20侧面的驱动电连接部(例如镜头驱动电连接部2203),所述驱动电连接部上的多个焊盘(例如镜头驱动焊盘22031),与所述线路板的硬板部分(比如第一连接带硬板3122)上的多个导电通孔相对应,并通过设置在导电通孔中的电连接介质电连接。
本申请所涉及的导电通孔-焊盘焊接的结构,可以在摄像模组的电连接部被设置在所述摄像模组的侧面时被应用,以避免摄像模组在电导通时受压,造成摄像模组的不良。其中,电连接部被设置在所述摄像模组的侧面,可以是驱动组件20的电连接部被设置在侧面,也可以是感光组件30的电连接部被设置在侧面,通过具有导电通孔的线路板31与所述电连接部焊接,从而将所述驱动组件20或者所述感光组件30与所述移动电子设备电导通。
进一步地,为维持所述线路板31弯折后的形状,特别是所述第一弯折部31211和所述第四弯折部31311的弯曲,所述补强板37也可以进行弯曲,以维持所述第一连接带软板3121在所述第一弯折部31211处的弯曲,维持所述第二连接带软板3131在所述第四弯折部31311处的弯曲。
具体的,图13-15示出了所述补强板37贴附在所述线路板主体311底面的示意图,所述补强板37包括补强板主体371、第一补强板侧部372及第二补强板侧部373,所述补强板主体371、所述第一补强板侧部372及所述第二补强板侧部373可以是一体成型的。所述第一补强板侧部372进一步包括第一补强板弯部3721,所述第二补强板侧部373进一步包括第二补强板弯部3731,所述补强板通过所述补强板主体371贴附固定于所述线路板主体311的底面,从而所述补强板主体371与具有所述线路板通孔3111的所述线路板主体311形成一凹槽用于容置所述感光芯片32,所述第一补强板侧部372通过所述第一补强板弯部3721固定连接于所述补强板主体371一侧(与所述第一连接带软板3121位于同一侧,即第一侧面301),所述第二补强板侧部373通过所述第二补强板弯部3731固定连接于所述补强板主体371与所述第一补强板侧部372相对的另一侧(与所述第二连接带软板3131位于同一侧,即第二侧面302)。优选地,所述补强板37的材质为适于弯曲的不锈钢、铜等金属材质。
通过所述第一补强板弯部3721的弯曲,所述第一补强板侧部372沿所述补强板主体371第一侧面301弯曲并向上延伸,通过所述第二补强板弯部3731的弯曲,所述第二补强板侧部373沿所述补强板主体371第二侧面302弯曲并向上延伸。所述第一补强板侧部372和所述第二补强板侧部373弯曲后形状不易变化,因此,所述第一补强板侧部372和所述第二补强板侧部373适于保持所述第一弯折部31211和所述第四弯折部31311的弯曲,维持所述第一连接带 软板3121和第二连接带软板3131在弯曲后的形状,从而可以降低所述驱动组件20驱动所述线路板主体311移动时,所述第一连接带312和所述第二连接带313的阻力。
所述第一补强板弯部3721的宽度小于所述第一补强板侧部372的宽度,从而降低弯曲所述第一补强板弯部3721的难度,进一步地,所述第一补强板弯部3721还具有一通孔,进一步减小弯曲所述第一补强板弯部3721的阻力。所述第二补强板弯部3731的宽度小于所述第二补强板侧部373的宽度,从而降低弯曲所述第二补强板弯部3731的难度,进一步地,所述第二补强板弯部3731还具有一通孔,进一步减小弯曲所述第二补强板弯部3731的阻力。
如图16-17,在本申请的一个实施例中,所述芯片防抖部211的芯片防抖电连接部2114通过插针焊的方式电连接于所述线路板主体311。
具体地,在摄像模组1的组装中,所述光学镜头10组装于所述驱动组件20,所述驱动组件20则固定于所述线路板主体311并电连接于所述线路板主体311,从而降低摄像模组的高度。所述驱动组件20固定于所述线路板主体311可以通过HA工艺或者AA工艺进行组装,HA工艺是指将驱动组件20和所述线路板31在调整平行度后直接通过黏合介质粘接固定,其通常要求所述驱动组件20和所述线路板主体311之间的间隙预留约0.03mm;而AA工艺是指主动校准工艺,其首先将光学镜头10组装于所述驱动组件20形成摄像模组半成品,而后根据所述感光组件30接收所述摄像模组半成品的光线所成图像的成像品质,调整所述摄像模组半成品与所述线路板主体311之间的位置关系,进而通过黏合介质粘接固定,其通常要求所述驱动组件20和所述线路板主体311之间的间隙预留约0.16mm的间隙。因此,不论是通过HA工艺还是AA工艺,当为了降低摄像模组高度,使所述驱动组件20与所述线路板主体311之间粘接固定时,所述驱动组件20与所述线路板主体311之间的间隙会较低。
在本申请的一个实施例中,所述芯片防抖电连接部2114包括多个引脚21141,所述引脚21141包括与所述芯片防抖固定部2111固定相连的横向部211411和与所述横向部211411一体形成并垂直(大致垂直)于所述横向部211411的竖直部211412,所述引脚21141的所述竖直部211412决定了所述引脚21141的高度,常见的引脚尺寸为0.5mm,远超过所述驱动组件20和所述线 路板主体311之间的间隙。而在现有的摄像模组中,引脚通常焊接于线路板31之上,引脚与线路板31之间还要预留0.2mm的间隙,这对于本申请而言,会造成所述驱动组件20与所述线路板主体311之间的间隙加大,从而使得摄像模组的高度增加,这与降低摄像模组高度的需求是不相符的。
因此,在本申请的一些实施例中,所述线路板主体311具有多个侧凹部3112,多个所述侧凹部3112位于所述线路板主体311的一侧与所述芯片防抖连接部的多个所述引脚21141相对应的位置,所述引脚21141通过所述侧凹部3112穿过所述线路板主体311,并通过布设电连接介质,电连接所述引脚21141和所述侧凹部3112。具体地,所述侧凹部3112表面具有金属镀层,从而可以与所述电连接介质焊接固定并电导通。通过上述结构,使得所述驱动组件20与所述线路板主体311之间的间隙不受引脚21141尺寸和焊接工艺的限制,从而降低摄像模组的高度。
图17示出了本申请一个实施例的所述引脚21141与所述线路板主体311相对位置关系的示意图。所述引脚21141的所述竖直部211412优选突出于所述线路板主体311底面(即线路板主体311的背面),即所述引脚21141的所述竖直部211412的底面低于所述线路板主体311的底面,以使得所述电连接介质可以与所述引脚21141的侧面有较大的接触面积,以提升焊接的良率,并保障电连接的效果。当所述线路板主体311的底面进一步贴附有补强板时,优选地,所述补强板37没有贴附在所述侧凹部3112的底面,所述引脚21141的所述竖直部211412底面不突出于所述补强板37的底面,即优选所述引脚21141的所述竖直部211412底面在所述线路板主体311底面和所述补强板37底面之间,从而所述补强板37可以对所述引脚21141起到保护作用,并降低所述引脚21141与其他部件之间接触导致短路等的风险。需注意的是,在本申请的其他实施方式中,所述引脚21141的所述竖直部211412底面也可以突出于所述补强板37的底面,或者,所述引脚21141的所述竖直部211412底面也可以不突出于所述线路板主体311的底面,即述引脚21141的所述竖直部211412底面也可以高于所述线路板主体311的底面,位于所述线路板主体311的上表面和底面之间。
进一步地,所述竖直部211412与所述横向部211411之间的夹角在
80°-100°之间,当所述竖直部211412垂直于所述横向部211411时,所述竖直部211412与所述横向部211411之间的夹角为90°。在本申请的一个优选实施例中,所述竖直部211412相对于所述横向部211411的垂线存在大于0°小于10°的倾斜角,从而使所述竖直部211412在同样高度下长度可以更长,降低引脚的制作工艺难度。
从摄像模组整体角度观察,所述第一连接带软板3121位于所述摄像模组1的第一侧面301,所述第二连接带软板3131位于所述摄像模组1的第二侧面302,所述镜头驱动部分22的所述镜头驱动电连接部2203、所述第一连接带硬板3122和所述第二连接带硬板3132位于所述摄像模组1的第三侧面303,所述芯片驱动部分21的芯片防抖电连接部2114位于所述摄像模组1的第四侧面304,通过上述布局方式,使得上述部件之间不干涉,使其对摄像模组的芯片防抖的影响较低。
图18-21示出了本申请的外框架40的示意图,所述外框架40包括框架主体41、框架盖体42和框架底板43。
所述框架主体41具有一通孔,从而容置所述驱动组件20,所述驱动组件20的通过黏合介质固定于所述框架主体41,从而提供所述驱动组件20支撑位置。
所述框架底板43固定于所述框架主体41底面,从而保护所述感光组件30,并且,所述框架底板43与所述感光组件30的底面之间存在间隙,从而使得所述感光组件30被所述驱动组件20的所述芯片防抖部211驱动时,所述框架底板43不会干涉所述感光组件30的移动。进一步地,所述框架底板43还可以具有一通孔,所述框架底板43的通孔与所述驱动组件20的所述芯片防抖部211的芯片防抖电连接部2114相对应,从而提供所述引脚21141更大的空间,避免所述引脚21141与所述框架底板43之间接触,减小相互间的干涉和电路短路等风险。
所述框架盖体42固定于所述框架主体41顶面,从而与所述框架主体41封装所述驱动组件20,减少灰尘等脏污落入所述驱动组件20和所述框架主体41之间的风险。所述框架盖体42具有一通孔,所述框架盖体42的通孔适于提供所述光学镜头10入射光线,且可以使所述光学镜头10穿过,使所述光学镜 头10突出于所述框架盖体42。
进一步地,如图20-21所示,所述外框架40还包括一导电布44,所述导电布44贴附于所述框架底板43的底面。所述导电布44可以盖住所述框架底板43的通孔,从而使灰尘等脏污会不进入摄像模组中。所述导电布44还可以包括导电布侧部441,所述导电布44通过所述导电布侧部441进一步贴附在所述框架主体41的侧面,当所述框架主体41为铝、不锈钢等金属时,所述导电布44可以与所述框架主体41电导通,可以实现导电、电磁屏蔽等效果。所述导电布44可以包括一个或者多个导电布侧部441,在本申请的一个具体示例中,所述导电布侧部441的数量为4,且分别分布于所述框架主体41的四侧。
进一步地,如图18所示,所述外框架40还包括一绝缘片45,所述绝缘片45被设置于所述第一连接带硬板3122和所述框架主体41之间。当所述框架主体41的材质为导电材质时,所述框架主体41和所述第一硬板之间存在接触进而造成第一硬板短路的风险,因此将所述绝缘片45设置于所述第一连接带硬板3122和所述框架主体41之间可以减少上述风险。具体的,所述绝缘片45可以粘接固定在所述框架主体41的内侧,也可以粘接固定在所述第一连接带硬板3122外侧,或者所述绝缘片45仅放置在所述第一连接带硬板3122和所述框架主体41之间。
本申请中,第一连接带、第二连接带的主体部分均布置在摄像模组的光学元件的周侧,因此可以称为侧置连接带。在侧置连接带中,自线路板主体侧面向上弯折的部分可以称为弯折部(或称为向上弯折部,该弯折部可以视为侧置连接带的一部分)。布置在所述摄像模组光学元件周侧的部分可以称为侧置连接带主体。侧置连接带主体的表面可以大致垂直于线路板主体的表面。在一些实施例中,侧置连接带与线路板主体可以是一体成型的,例如可以通过软硬结合板的制作工艺一体成型地制作侧置连接带和线路板主体。其中线路板主体可以是硬板(例如PCB板),侧置连接带的弯折部可以是软板(例如FPC板),侧置连接带主体可以包括软板的部分和硬板的部分。其中硬板的部分可以用于将该侧置连接带悬挂在光学致动器的静态构件(例如致动器固定部)上。
本申请中,光学元件是指用于构成成像光学系统的元件,一般包括用于成像的多个透镜和感光元件(通常为感光芯片)。用于成像的多个透镜及其支撑构件(例如镜筒)可以构成所述的光学镜头。感光元件则位于感光组件中。
在前述实施例中,驱动组件20构成光学致动器。该光学致动器可以是双OIS光学致动器,即该光学致动器具有镜头驱动部分和芯片驱动部分。光学致动器可以包括致动器固定部和致动器可动部。致动器固定部可以包括镜头驱动固定部和芯片防抖固定部,这二者可以是固定在一起的。致动器可动部则可以包括镜头驱动可动部和芯片防抖可动部。
本申请中,硬板或连接带的表面是指与该硬板或连接带的厚度方向垂直的面(即该面的法线方向与硬板的厚度方向一致)。每个硬板或连接带包括两个表面,靠内侧的(即靠向光轴一侧的)为内表面,靠外侧的(即背离光轴一侧的)为外表面。
本申请中,摄像模组的感光芯片和/或光学致动器通常具有用于供电和/或实现某种对应功能的线路,这些线路可以布置在一块或多块线路板上,为便于描述,本文中将摄像模组中的各种用于供电和/或布置功能电路的所有基板及这些基板的连接构件称为线路板结构。
本申请的一些实施例中,摄像模组包括光学致动器、光学镜头和感光组件;其中,所述光学致动器具有芯片防抖部。所述芯片防抖部的至少一个侧面具有多个导电引脚,所述线路板主体的至少一个侧面具有多个侧凹部,每个所述侧凹部由所述线路板主体的侧面向内侧凹陷而形成,所述导电引脚伸入所述侧凹部,并由焊接介质将所述导电引脚和所述侧凹部电连接。所述芯片防抖部包括芯片防抖固定部和芯片防抖可动部,在优选实施例中,所述的多个导电引脚从所述芯片防抖可动部的至少一个侧面引出。该优选实施例中,将导电引脚从芯片防抖可动部引出,并与线路板主体的侧凹部电连接,可以在实现芯片防抖部与线路板主体的电连接的同时,很好地适应芯片防抖移动。在芯片防抖移动过程中,芯片防抖可动部与线路板主体是一起移动的,即芯片防抖可动部与线路板主体是相对静止的。需注意,本申请的图3中,为使图面简洁,芯片防抖固定部和芯片防抖可动部的一些线条被省去,实际上,本申请的优选实施例中, 用于与侧凹部电连接的导电引脚是从芯片防抖可动部(而非芯片防抖固定部)的侧面引出的。
进一步地,本申请的一些实施例中,所述框架底板具有引脚避让通孔;所述引脚避让通孔可以位于所述侧凹部的正下方,在仰视角度下所述引脚避让通孔的尺寸大于所述侧凹部的尺寸,并且所述引脚避让通孔的轮廓线与所述侧凹部的轮廓线具有不小于15μm的间距;所述侧凹部的深度为15-25μm。侧凹部的深度是自线路板主体的侧面向内凹进的距离。
进一步地,本申请的一些实施例中,在线路板主体的侧面设置侧凹部,在光学致动器的侧面设置导电引脚(即马达引脚),然后将导电引脚伸入或穿过所述线路板主体的侧面的侧凹部,再从外侧施加焊接介质,将导电引脚焊接于所述侧凹部。这种设计方案可以减小马达引脚焊接所占用的高度,从而减小带有光学致动器的摄像模组的高度。该引脚-侧凹部焊接方案特别适用于双OIS摄像模组,或者具有芯片防抖功能的摄像模组,也可以适用于AF模组(即自动对焦摄像模组)。
以上描述仅为本申请的较佳实施方式以及对所运用技术原理的说明。本领域技术人员应当理解,本申请中所涉及的发明范围,并不限于上述技术特征的特定组合而成的技术方案,同时也应涵盖在不脱离所述发明构思的情况下,由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (69)

  1. 一种用于摄像模组的线路板,其特征在于,包括线路板主体和至少两个侧置连接带;
    所述线路板主体具有垂直于所述摄像模组的光轴的表面和平行于所述光轴的多个侧面;
    所述侧置连接带自所述线路板主体的侧面引出并向上弯折,并在弯折后在所述摄像模组的侧面延伸形成侧置连接带主体;所述侧置连接带具有硬板,在所述的至少两个侧置连接带中,其中一个所述侧置连接带的硬板的外表面具有多个焊盘,另一个所述侧置连接带的硬板具有多个导电通孔,这两个所述侧置连接带的硬板重叠布置;焊接介质附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘。
  2. 根据权利要求1所述的用于摄像模组的线路板,其特征在于,所述多个侧面包括第一侧面、与所述第一侧面相对的第二侧面、与所述第一侧面相邻的第三侧面和与所述第三侧面相对的第四侧面;
    所述侧置连接带包括:
    第一连接带,其包括第一连接带软板和第一连接带硬板,所述第一连接带软板自所述线路板主体的所述第一侧面引出并向上弯折,然后沿着所述第一侧面延伸,再弯折至所述第三侧面,所述第一连接带硬板位于所述第三侧面并且所述第一连接带硬板的侧面与所述第一连接带软板连接,所述第一连接带硬板的表面平行于所述光轴;以及
    第二连接带,其包括第二连接带软板和第二连接带硬板,所述第二连接带软板自所述线路板主体的所述第二侧面引出并向上弯折,然后沿着所述第二侧面延伸,再弯折至所述第三侧面,所述第二连接带硬板位于所述第三侧面并且所述第二连接带硬板的侧面与所述第二连接带软板连接,所述第二连接带硬板的表面平行于所述光轴;
    其中,所述第一连接带硬板位于所述第二连接带硬板的外侧,所述第一连接带硬板具有多个导电通孔,所述第二连接带硬板的外表面具有多个焊盘,所述导电通孔和所述焊盘通过焊接介质连接,所述焊接介质在熔化 状态下喷射进入并穿过所述导电通孔,并且在冷却后附着在所述焊盘和所述导电通孔以将所述导电通孔和所述焊盘电连接。
  3. 根据权利要求2所述的用于摄像模组的线路板,其特征在于,所述第一连接带硬板与所述第二连接带硬板之间通过黏合介质粘接;所述第一连接带硬板的内表面和所述第二连接带硬板的外表面之间具有不大于100μm的间隙。
  4. 根据权利要求3所述的用于摄像模组的线路板,其特征在于,所述焊接介质在熔化状态下以喷射流的形式进入所述导电通孔并附着于所述导电通孔的侧壁,并且所述焊接介质穿过所述导电通孔并接触所述焊盘;并且所述焊接介质在固化后构成跨越所述第一连接带硬板的内表面和所述第二连接带硬板的外表面之间间隙的连接件;
    所述焊接介质与所述导电通孔的一部分孔壁之间保留有孔隙。
  5. 根据权利要求3所述的用于摄像模组的线路板,其特征在于,所述导电通孔的孔壁上附着有金属层,所述金属层为金属镀层。
  6. 根据权利要求5所述的用于摄像模组的线路板,其特征在于,所述金属层为环形金属层。
  7. 根据权利要求5所述的用于摄像模组的线路板,其特征在于,所述金属层附着在所述导电通孔的一部分孔壁上,形成不封闭的金属层。
  8. 根据权利要求7所述的用于摄像模组的线路板,其特征在于,所述第一连接带硬板中,所有的所述导电通孔的所述不封闭的金属层均布置在所述导电通孔的同一侧。
  9. 根据权利要求8所述的用于摄像模组的线路板,其特征在于,所述第一连接带硬板中,所有的所述导电通孔的所述弧形金属层均布置在所述导电通孔的下侧。
  10. 根据权利要求3所述的用于摄像模组的线路板,其特征在于,所述焊接介质为锡或者含锡焊接材料。
  11. 根据权利要求2所述的用于摄像模组的线路板,其特征在于,所述线路板还包括自所述第一连接带硬板的下侧面引出并向外弯折而形成的第三连接带,所述第三连接带的表面垂直于所述光轴,并且所述第三连接带的自由端具有连接器,所述连接器适于与搭载所述摄像模组的电子设备的主板插接。
  12. 一种摄像模组,其特征在于,包括:外框架和容纳在所述外框架内的光学镜头、光学致动器、感光芯片和权利要求1-11中任一项所述的线路板;
    其中,所述感光芯片固定于所述的线路板的所述线路板主体,所述光学致动器适于驱动所述光学镜头和/或所述感光芯片移动;所述光学致动器包括致动器固定部,所述侧置连接带设置在所述外框架和所述致动器固定部之间的间隙。
  13. 根据权利要求12所述的摄像模组,其特征在于,所述感光芯片贴附于所述线路板主体的上表面;所述线路板上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座和所述线路板主体构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
  14. 根据权利要求12所述的摄像模组,其特征在于,所述线路板主体的中央具有中央通孔,所述线路板主体的下表面贴附一补强板,所述感光芯片贴附于所述补强板的上表面并且所述感光芯片置于所述中央通孔中;所述线路板主体上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座、所述线路板主体和所述补强板构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
  15. 根据权利要求13所述的摄像模组,其特征在于,所述光学致动器还包括芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所 述芯片防抖可动部的带动下相对于所述致动器固定部移动,所述第一连接带硬板和所述第二连接带硬板均直接或间接地固定于所述致动器固定部。
  16. 根据权利要求13所述的摄像模组,其特征在于,所述光学致动器还包括芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述补强板和所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述致动器固定部移动,所述第一连接带硬板和所述第二连接带硬板均直接或间接地固定于所述致动器固定部。
  17. 根据权利要求15或16所述的摄像模组,其特征在于,所述光学致动器还包括镜头驱动可动部,所述光学镜头安装于所述镜头驱动可动部,并且适于在所述镜头驱动可动部的带动下相对于所述致动器固定部移动。
  18. 根据权利要求12所述的摄像模组,其特征在于,所述致动器固定部的外侧面具有向外侧凸起的凸柱,所述侧置连接带的所述硬板具有挂孔,所述凸柱穿过所述挂孔,以将所述侧置连接带悬挂于所述致动器固定部。
  19. 一种摄像模组,包括:光学镜头、感光组件、光学致动器以及用于为所述感光组件和所述光学致动器供电和/或布置功能电路的线路板结构;其特征在于,
    所述线路板结构具有第一硬板和第二硬板;
    其中,所述第一硬板和所述第二硬板的表面均平行于所述摄像模组的光轴,并且所述第一硬板和所述第二硬板均位于所述光学镜头和所述感光组件的外侧,所述第二硬板与所述第一硬板在侧视视角下重叠布置;
    所述第一硬板的外表面具有多个焊盘,所述第二硬板具有多个导电通孔,所述第一硬板的外表面面对所述第二硬板的内表面;所述焊盘与所述导电通孔通过焊接介质电连接,其中所述焊接介质附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘。
  20. 根据权利要求19所述的摄像模组,其特征在于,所述线路板结构包括线路板主体和至少一个侧置连接带;所述线路板主体的表面垂直于所述光轴,所述侧置连接带自所述线路板主体的侧面引出并向上弯折,所述侧置连接带的表面平行于所述摄像模组的光轴,所述第二硬板是一个所述侧置连接带的一部分。
  21. 根据权利要求20所述的摄像模组,其特征在于,所述第一硬板是所述光学致动器的电路板。
  22. 根据权利要求20所述的摄像模组,其特征在于,所述线路板主体具有垂直于所述摄像模组的所述光轴的表面和平行于所述光轴的多个侧面,所述多个侧面包括第一侧面、与所述第一侧面相对的第二侧面、与所述第一侧面相邻的第三侧面和与所述第三侧面相对的第四侧面;
    所述侧置连接带包括:
    第一连接带,其包括第一连接带软板和第一连接带硬板,所述第一连接带软板自所述线路板主体的所述第一侧面引出并向上弯折,然后沿着所述第一侧面延伸,再弯折至所述第三侧面,所述第一连接带硬板位于所述第三侧面并且所述第一连接带硬板的侧面与所述第一连接带软板连接,所述第一连接带硬板的表面平行于所述光轴;以及
    第二连接带,其包括第二连接带软板和第二连接带硬板,所述第二连接带软板自所述线路板主体的所述第二侧面引出并向上弯折,然后沿着所述第二侧面延伸,再弯折至所述第三侧面,所述第二连接带硬板位于所述第三侧面并且所述第二连接带硬板的侧面与所述第二连接带软板连接,所述第二连接带硬板的表面平行于所述光轴;
    其中,所述第一连接带硬板位于所述第二连接带硬板的外侧,所述第一连接带硬板具有多个导电通孔,所述第二连接带硬板的外表面具有多个焊盘,所述导电通孔和所述焊盘通过焊接介质连接,所述焊接介质在熔化状态下喷射进入并穿过所述导电通孔,并且在冷却后附着在所述焊盘和所述导电通孔以将所述导电通孔和所述焊盘连接;
    其中,所述的第二硬板为所述第一连接带硬板,所述第一硬板包括所述的第二连接带硬板。
  23. 根据权利要求22所述的摄像模组,其特征在于,所述第一硬板还包括所述光学致动器的电路板,所述光学致动器的电路板的外表面与所述第二连接带硬板的外表面平齐,并且在侧向视角下,所述第一连接带硬板覆盖所述光学致动器的电路板的外表面和所述第二连接带硬板的外表面的至少一部分,所述第一连接带硬板的一部分所述导电通孔通过所述焊接介质与所述光学致动器的电路板的所述焊盘连接,所述第一连接带硬板的另一部分所述导电通孔通过所述焊接介质与所述第二连接带硬板的所述焊盘连接。
  24. 根据权利要求22所述的摄像模组,其特征在于,所述光学致动器具有多个致动器引脚,所述多个引脚的外侧面与所述第二连接带硬板的外表面平齐,并且在侧向视角下,所述第一连接带硬板覆盖所述致动器引脚的外侧面和所述第二连接带硬板的外表面的至少一部分,所述第一连接带硬板的一部分所述导电通孔通过所述焊接介质与所述光学致动器的电路板的所述致动器引脚电连接,所述第一连接带硬板的另一部分所述导电通孔通过所述焊接介质与所述第二连接带硬板的所述焊盘连接。
  25. 根据权利要求19所述的摄像模组,其特征在于,所述第一硬板与所述第二硬板之间通过黏合介质粘接;所述第一硬板的外表面和所述第二硬板的内表面之间具有不大于100μm的间隙。
  26. 根据权利要求25所述的摄像模组,其特征在于,所述焊接介质固化后形成的连接件与所述导电通孔的侧壁之间具有间隙。
  27. 根据权利要求25所述的摄像模组,其特征在于,所述导电通孔的孔壁上附着有金属层,所述金属层为金属镀层。
  28. 根据权利要求27所述的摄像模组,其特征在于,所述金属层为环形金属层。
  29. 根据权利要求27所述的摄像模组,其特征在于,所述金属层附着在所述导电通孔的一部分孔壁上,形成在侧视视角下不封闭的金属层。
  30. 根据权利要求29所述的摄像模组,其特征在于,所述第二硬板中,所有的所述导电通孔的所述不封闭的金属层均布置在所述导电通孔的同一侧。
  31. 根据权利要求30所述的摄像模组,其特征在于,所述第一连接带硬板中,所有的所述导电通孔的所述不封闭的金属层均布置在所述导电通孔的下侧。
  32. 根据权利要求22所述的摄像模组,其特征在于,所述线路板还包括自所述第一连接带硬板的下侧面引出并向外弯折而形成的第三连接带,所述第三连接带的表面垂直于所述光轴,并且所述第三连接带的自由端具有连接器,所述连接器适于与搭载所述摄像模组的电子设备的主板插接。
  33. 根据权利要求22所述的摄像模组,其特征在于,所述感光芯片固定于所述线路板主体,所述光学致动器适于驱动所述光学镜头和/或所述感光芯片移动;所述侧置连接带悬挂于所述光学致动器的固定部的外侧。
  34. 根据权利要求33所述的摄像模组,其特征在于,所述感光芯片贴附于所述线路板主体的上表面;所述线路板上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座和所述线路板主体构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
  35. 根据权利要求33所述的摄像模组,其特征在于,所述线路板主体的中央具有中央通孔,所述线路板主体的下表面贴附一补强板,所述感光芯片贴附于所述补强板的上表面并且所述感光芯片置于所述中央通孔中;所述线路板上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座、所述线路板主体和所述补强板构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
  36. 根据权利要求34所述的摄像模组,其特征在于,所述光学致动器包括致动器固定部和芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述致动器固定部移动,所述第一连接带硬板和所述第二连接带硬板均直接或间接地固定于所述致动器固定部。
  37. 根据权利要求35所述的摄像模组,其特征在于,所述光学致动器包括致动器固定部和芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述补强板和所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述致动器固定部移动,所述第一连接带硬板和所述第二连接带硬板均直接或间接地固定于所述致动器固定部。
  38. 根据权利要求36或37所述的摄像模组,其特征在于,所述光学致动器还包括镜头驱动可动部,所述光学镜头安装于所述镜头驱动可动部,并且适于在所述镜头驱动可动部的带动下相对于所述致动器固定部移动。
  39. 一种摄像模组,包括:光学致动器、光学镜头和感光组件;其特征在于,所述感光组件包括线路板和感光芯片,所述线路板包括线路板主体,所述感光芯片直接或间接地安装于所述线路板主体;
    其中,所述光学致动器的至少一个侧面具有多个导电引脚,所述线路板主体的至少一个侧面具有多个侧凹部,每个所述侧凹部由所述线路板主体的侧面向内侧凹陷而形成,所述导电引脚伸入所述侧凹部,并由焊接介质将所述导电引脚和所述侧凹部电连接。
  40. 根据权利要求39所述的摄像模组,其特征在于,所述光学致动器具有芯片防抖部,所述的多个导电引脚自所述芯片防抖部的至少一个侧面引出;
    所述导电引脚包括横向部和竖直部,所述横向部自所述芯片防抖部的侧面向外侧延伸而成,所述竖直部由所述横向部的末端向下延伸而成。
  41. 根据权利要求40所述的摄像模组,其特征在于,所述竖直部穿过所述侧凹部,所述竖直部的底端越过所述线路板主体的下表面。
  42. 根据权利要求40所述的摄像模组,其特征在于,所述竖直部的底端位于所述线路板主体的上表面和所述线路板主体的下表面之间。
  43. 根据权利要求40所述的摄像模组,其特征在于,所述感光组件还包括补强板,所述补强板贴附于所述线路板主体的下表面,所述线路板主体具有中央通孔,所述感光芯片安装于所述补强板并且设置于所述线路板主体的所述中央通孔内。
  44. 根据权利要求43所述的摄像模组,其特征在于,所述竖直部的底端高于所述补强板的下表面。
  45. 根据权利要求39所述的摄像模组,其特征在于,所述摄像模组还包括一外框架,所述感光组件和所述光学致动器均容纳在所述外框架内部;所述外框架具有一框架底板,所述感光组件的底面与所述框架底板之间具有间隙。
  46. 根据权利要求45所述的摄像模组,其特征在于,所述框架底板具有引脚避让通孔;所述引脚避让通孔位于所述侧凹部的正下方,在仰视角度下所述引脚避让通孔的尺寸大于所述侧凹部的尺寸,并且所述引脚避让通孔的轮廓线与所述侧凹部的轮廓线具有不小于15μm的间距;所述侧凹部的深度为15-25μm。
  47. 根据权利要求46所述的摄像模组,其特征在于,所述外框架还包括导电布,所述导电布贴附于所述框架底板的底面并覆盖所述引脚避让通孔。
  48. 根据权利要求40所述的摄像模组,其特征在于,所述竖直部与所述线路板主体的表面的法线之间具有大于0°且小于10°的倾斜角。
  49. 根据权利要求39所述的摄像模组,其特征在于,所述侧凹部附着有金属镀层。
  50. 根据权利要求40所述的摄像模组,其特征在于,所述芯片防抖部包括芯片防抖固定部和芯片防抖可动部,所述的多个导电引脚从所述芯片防抖可动部的至少一个侧面引出。
  51. 根据权利要求50所述的摄像模组,其特征在于,所述线路板还包括两个侧置连接带;
    所述线路板主体具有垂直于所述摄像模组的光轴的表面和平行于所述光轴的多个侧面,所述多个侧面包括第一侧面、与所述第一侧面相对的第二侧面、与所述第一侧面相邻的第三侧面和与所述第三侧面相对的第四侧面;所述侧凹部位于所述第四侧面;
    所述侧置连接带包括:
    第一连接带,其包括第一连接带软板和第一连接带硬板,所述第一连接带软板自所述线路板主体的所述第一侧面引出并向上弯折,然后沿着所述第一侧面延伸,再弯折至所述第三侧面,所述第一连接带硬板位于所述第三侧面并且所述第一连接带硬板的侧面与所述第一连接带软板连接,所述第一连接带硬板的表面平行于所述光轴;以及
    第二连接带,其包括第二连接带软板和第二连接带硬板,所述第二连接带软板自所述线路板主体的所述第二侧面引出并向上弯折,然后沿着所述第二侧面延伸,再弯折至所述第三侧面,所述第二连接带硬板位于所述第三侧面并且所述第二连接带硬板的侧面与所述第二连接带软板连接,所述第二连接带硬板的表面平行于所述光轴;
    其中,所述第一连接带硬板位于所述第二连接带硬板的外侧,所述第一连接带硬板具有多个导电通孔,所述第二连接带硬板的外表面具有多个焊盘,所述导电通孔和所述焊盘通过焊接介质连接,所述焊接介质在熔化状态下喷射进入并穿过所述导电通孔,并且在冷却后附着于所述焊盘和所述导电通孔,并跨越所述导电通孔和所述焊盘之间的间隙以将二者连接。
  52. 根据权利要求51所述的摄像模组,其特征在于,所述线路板主体上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装滤光片,所述滤光片、所述环形底座和所述线路板主体构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内;
    所述芯片防抖固定部和所述芯片防抖可动部均呈板状,且二者均具有位于中央区域的通光孔;所述芯片防抖可动部位于所述芯片防抖固定部的下方,所述线路板主体、所述滤光片、所述环形底座、所述感光芯片构成的感光封装体固定于所述芯片防抖可动部;所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述芯片防抖固定部移动。
  53. 根据权利要求51所述的摄像模组,其特征在于,所述线路板主体的中央具有中央通孔,所述线路板主体的下表面贴附一补强板,所述感光芯片贴附于所述补强板的上表面并且所述感光芯片置于所述中央通孔中;所述线路板主体上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、所述环形底座、所述线路板主体和所述补强板构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内;
    所述芯片防抖固定部和所述芯片防抖可动部均呈板状,且二者均具有位于中央区域的通光孔;所述芯片防抖可动部位于所述芯片防抖固定部的下方,所述线路板主体、所述补强板、所述滤光片、所述环形底座、所述感光芯片构成的感光封装体固定于所述芯片防抖可动部;所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述芯片防抖固定部移动。
  54. 根据权利要求52或53所述的摄像模组,其特征在于,所述光学致动器还包括镜头防抖部,所述镜头防抖部包括镜头防抖固定部和镜头防抖可动部,所述镜头防抖固定部固定于所述芯片防抖固定部,所述光学镜头安装于所述镜头防抖可动部,所述光学镜头适于在所述镜头防抖可动部的带动下相对于所述镜头防抖固定部移动。
  55. 根据权利要求54所述的摄像模组,其特征在于,所述光学镜头位于所述芯片防抖固定部的上方。
  56. 一种摄像模组,其包括光学镜头、感光组件和光学致动器,所述光学致动器包括致动器固定部和致动器可动部;其特征在于,
    所述感光组件具有感光芯片、线路板和补强板,所述线路板包括线路板主体和至少两个侧置连接带,所述补强板贴附于所述线路板主体底面;
    所述线路板主体具有垂直于所述摄像模组的光轴的表面和平行于所述光轴的多个侧面;对于每个所述侧置连接带,其自所述线路板主体的一个侧面引出并向上弯折,并在弯折后在所述光学镜头和/或所述感光组件的侧面延伸形成侧置连接带主体;
    所述侧置连接带包括互相连接的连接带软板和连接带硬板,所述连接带硬板悬挂于所述致动器固定部;所述连接带软板与所述线路板主体连接的部分形成向上弯折的软板弯折部,所述补强板的边缘区域具有向上弯折的补强板弯部以及自所述补强板弯部继续向上延伸而形成的补强板侧部,所述补强板弯部包裹在所述软板弯折部外侧,并且所述补强板侧部与所述侧置连接带接触但不互相连接。
  57. 根据权利要求56所述的摄像模组,其特征在于,所述线路板的至少两个侧置连接带中,其中一个所述侧置连接带的硬板的外表面具有多个焊盘,另一个所述侧置连接带的硬板具有多个导电通孔,这两个所述侧置连接带的硬板重叠布置;焊接介质附着在所述导电通孔的侧壁并穿过所述导电通孔接触所述焊盘。
  58. 根据权利要求57所述的摄像模组,其特征在于,所述多个侧面包括第一侧面、与所述第一侧面相对的第二侧面、与所述第一侧面相邻的第三侧面和与所述第三侧面相对的第四侧面;
    所述侧置连接带包括:
    第一连接带,其包括第一连接带软板和第一连接带硬板,所述第一连接带软板自所述线路板主体的所述第一侧面引出并向上弯折,然后沿着所述第一侧面延伸,再弯折至所述第三侧面,所述第一连接带硬板位于所述第三侧面并且所述第一连接带硬板的侧面与所述第一连接带软板连接,所述第一连接带硬板的表面平行于所述光轴;以及
    第二连接带,其包括第二连接带软板和第二连接带硬板,所述第二连接带软板自所述线路板主体的所述第二侧面引出并向上弯折,然后沿着所述第二侧面延伸,再弯折至所述第三侧面,所述第二连接带硬板位于所述第三侧面并且所述第二连接带硬板的侧面与所述第二连接带软板连接,所述第二连接带硬板的表面平行于所述光轴;
    其中,所述第一连接带硬板位于所述第二连接带硬板的外侧,所述第一连接带硬板具有多个导电通孔,所述第二连接带硬板的外表面具有多个焊盘,所述导电通孔和所述焊盘通过焊接介质连接,所述焊接介质在熔化状态下喷射进入并穿过所述导电通孔,并且在冷却后附着在所述焊盘和所述导电通孔以将所述导电通孔和所述焊盘电连接。
  59. 根据权利要求58所述的摄像模组,其特征在于,所述第一连接带硬板与所述第二连接带硬板之间通过黏合介质粘接;所述第一连接带硬板的内表面和所述第二连接带硬板的外表面之间具有不大于100μm的间隙。
  60. 根据权利要求59所述的摄像模组,其特征在于,所述焊接介质在熔化状态下以喷射流的形式进入所述导电通孔并附着于所述导电通孔的侧壁,并且所述焊接介质穿过所述导电通孔并接触所述焊盘;并且所述焊接介质在固化后构成跨越所述第一连接带硬板的内表面和所述第二连接带硬板的外表面之间间隙的连接件;
    所述焊接介质与所述导电通孔的一部分孔壁之间保留有孔隙。
  61. 根据权利要求56所述的摄像模组,其特征在于,所述补强板为金属板。
  62. 根据权利要求61所述的摄像模组,其特征在于,所述补强板的厚度小于所述线路板主体的厚度。
  63. 根据权利要求56所述的摄像模组,其特征在于,所述线路板主体的中央具有中央通孔,所述感光芯片贴附于所述补强板的上表面并且所述感光芯片置于所述中央通孔中;所述线路板主体上表面设置环形底座,所述环形底座围绕在所述感光芯片的周围,所述环形底座的顶面安装于滤光片,所述滤光片、 所述环形底座、所述线路板主体和所述补强板构成一封闭的腔体内,并将所述感光芯片封装在所述封闭的腔体内。
  64. 根据权利要求63所述的摄像模组,其特征在于,所述致动器可动部包括芯片防抖可动部,所述线路板主体、所述滤光片、所述环形底座、所述补强板和所述感光芯片构成的感光封装体固定于所述芯片防抖可动部,所述感光封装体适于在所述芯片防抖可动部的带动下相对于所述致动器固定部移动。
  65. 根据权利要求64所述的摄像模组,其特征在于,所述致动器固定部的外侧面具有向外侧凸起的凸柱,所述侧置连接带的所述硬板具有挂孔,所述凸柱穿过所述挂孔,以将所述侧置连接带悬挂于所述致动器固定部。
  66. 根据权利要求58所述的摄像模组,其特征在于,所述线路板还包括自所述第一连接带硬板的下侧面引出并向外弯折而形成的第三连接带,所述第三连接带的表面垂直于所述光轴,并且所述第三连接带的自由端具有连接器,所述连接器适于与搭载所述摄像模组的电子设备的主板插接。
  67. 根据权利要求64所述的摄像模组,其特征在于,所述致动器可动部还包括镜头驱动可动部,所述光学镜头安装于所述镜头驱动可动部,并且适于在所述镜头驱动可动部的带动下相对于所述致动器固定部移动。
  68. 根据权利要求61所述的摄像模组,其特征在于,所述补强板弯部与所述补强板的主体部是一体成型的,所述补强板弯部位于所述补强板的主体部的侧部的外侧,且所述补强板弯部的宽度小于所述补强板的主体部的侧部。
  69. 根据权利要求61所述的摄像模组,其特征在于,所述补强板弯部具有通孔。
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