CN115529399A

CN115529399A - Camera module and terminal equipment

Info

Publication number: CN115529399A
Application number: CN202110169325.2A
Authority: CN
Inventors: 黄桢; 叶林敏; 卞强龙; 阙嘉耀; 姚施琴
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2022-12-27

Abstract

The application provides a camera module and a terminal device, wherein the camera module comprises a lens component; the fixed substrate is used for arranging the lens assembly and comprises an electric connecting piece; the photosensitive assembly is arranged below the fixed substrate; the photosensitive assembly is arranged on the supporting assembly; the photosensitive assembly is in transmission connection with the piezoelectric actuator, the piezoelectric actuator drives the supporting assembly to drive the photosensitive assembly to move on the imaging plane, and the piezoelectric actuator is electrically connected with the electric connector of the fixed substrate. The technical scheme of this application utilizes piezoelectric actuator drive sensitization subassembly to remove for the camera lens subassembly and realizes the chip anti-shake, can improve the module anti-shake effect of making a video recording.

Description

Camera module and terminal equipment

Technical Field

The application relates to the technical field of photoelectricity, in particular to a camera module and terminal equipment.

Background

Along with the increase of the demand of consumers for mobile phone photographing, the functions of a mobile phone camera (i.e. a camera module) are more and more abundant, functions such as portrait photographing, long-distance photographing, optical zooming, optical anti-shake and the like are all integrated in the camera with a limited volume, and the functions of automatic focusing and optical anti-shake are often realized by an optical actuator (sometimes also called as a motor).

Along with the imaging quality requirement of the mobile phone camera module is higher and higher, the volume and the weight of the lens are larger and larger, the requirement on the driving force of the motor is also higher and higher, and the occupied volume of the motor is correspondingly increased along with the increase of the lens. However, since the size of the camera module is also greatly limited by the current electronic devices (e.g. mobile phones), the driving force provided by the motor is difficult to increase correspondingly under the trend of the lens toward larger size and larger weight. On the premise that the driving force is limited, the heavier the lens is, the shorter the stroke of the motor capable of driving the lens to move is, and the focusing and anti-shake capabilities are affected. On the other hand, the heavier the lens, the slower the motor can drive the lens to move, and the longer the lens reaches a predetermined compensation position, which also affects the focusing and anti-shake effects.

As the demand for miniaturization of mobile devices has increased, the density of internal components of the motor has also increased. The motor is internally provided with a magnet and a coil and used for generating a magnetic field necessary for driving the lens to move, and when the distance between the two magnets in the motor is too close (less than 7 mm), the internal magnetic fields of the motor can mutually influence, so that the magnets generate displacement or shake, and the focusing and imaging quality of the lens is influenced.

Disclosure of Invention

The application aims at providing a module and terminal equipment make a video recording, can improve the module anti-shake effect of making a video recording.

According to one aspect of the application, a camera module is provided, which comprises a lens component; the fixed substrate is used for arranging the lens assembly and comprises an electric connecting piece; the photosensitive assembly is arranged below the fixed substrate; the photosensitive assembly is arranged on the supporting assembly; the photosensitive assembly is in transmission connection with the at least one piezoelectric actuator, the at least one piezoelectric actuator drives the supporting assembly to drive the photosensitive assembly to move on the imaging plane, and the at least one piezoelectric actuator is electrically connected with the electric connector of the fixed substrate.

According to some embodiments, the at least one piezoelectric actuator is electrically connected to the electrical connector of the fixed substrate through a flexible printed circuit board.

According to some embodiments, each piezoelectric actuator comprises a mover, a drive shaft, and a piezoelectric element, wherein the drive shaft is coupled to the piezoelectric element; the moving member is slidably and frictionally disposed on the drive shaft.

According to some embodiments, each piezoelectric actuator includes a piezoelectric substrate and a vibration substrate, wherein one end of the vibration substrate is connected to the piezoelectric substrate, and an electric potential is applied to the piezoelectric substrate to cause contraction or expansion of the piezoelectric substrate and the vibration substrate, and the vibration substrate drives the driving shaft to move.

According to some embodiments, each piezoelectric actuator includes a plurality of piezoelectric telescopic bodies and a plurality of electrodes, wherein the plurality of piezoelectric telescopic bodies and the plurality of electrodes are stacked alternately, when directions of electric fields caused by potential differences on the plurality of electrodes are different, the plurality of piezoelectric telescopic bodies are deformed, and the driving shaft is reciprocated by the continuous deformation of the piezoelectric element.

According to some embodiments, the electric connector of the fixed substrate comprises at least two LDS grooves arranged on the surface of the fixed substrate, and the inner surfaces of the at least two LDS grooves are plated with conductive plating layers.

According to some embodiments, the electrical connection of the fixed substrate comprises: and a circuit layer is laid on the surface of the fixed substrate and used for conducting the circuits of the photosensitive assembly, the at least one piezoelectric actuator and external electronic equipment.

According to some embodiments, the electrical connection of the fixed substrate comprises at least two wires integrally formed in the fixed substrate.

According to some embodiments, the support assembly comprises: the second base is arranged on the outer frame body in a sliding mode along a second direction; the first base is slidably arranged on the second base along a first direction, and the photosensitive assembly is arranged on the first base; the first direction and the second direction are two mutually perpendicular directions in a plane where an optical axis direction along the axial direction of the lens is located.

According to some embodiments, the at least one piezoelectric actuator comprises: a first piezoelectric actuator that drives the first base to move in a first direction; and the second piezoelectric actuator drives the second base to move along the second direction.

According to some embodiments, the at least one piezoelectric actuator comprises: a first piezoelectric actuator that drives the second base to move in a first direction; and the second piezoelectric actuator drives the first base to move along the second direction.

According to some embodiments, the camera module further comprises: the first guide unit is arranged on one side opposite to the first piezoelectric actuator and used for guiding the first base to move along a first direction; and the second guide unit is arranged on the opposite side of the second piezoelectric actuator and used for guiding the second base to move along the second direction.

According to some embodiments, the first piezoelectric actuator and the second piezoelectric actuator are located at the same horizontal plane.

According to some embodiments, the first piezoelectric actuator and the second piezoelectric actuator are both disposed outside the photosensitive component.

According to some embodiments, the first piezoelectric actuator is located at an outer sidewall of the first base.

According to some embodiments, the second piezoelectric actuator is located at an outer sidewall of the second base.

According to some embodiments, the first piezoelectric actuator and the first guide unit are respectively disposed at a middle position of opposite sides of the first base along the first direction.

According to some embodiments, the second piezoelectric actuator and the second guide unit are respectively disposed at a middle position of opposite sides of the second base along the second direction.

According to some embodiments, the first piezoelectric actuator and the first guide unit are respectively disposed at diagonal positions of opposite sides of the first base along the first direction.

According to some embodiments, the second piezoelectric actuator and the second guide unit are respectively disposed at diagonal positions of opposite sides of the second base along the second direction.

According to some embodiments, the first piezoelectric actuator and the second piezoelectric actuator are located at the same angle of the camera module.

According to some embodiments, the at least one piezoelectric actuator is disposed between the photosensitive element and the fixed substrate, and a projection of the at least one piezoelectric actuator in the optical axis direction of the camera module is located in a region of the supporting element.

According to some embodiments, the photosensitive assembly is electrically connected to the electrical connector of the fixed substrate.

According to another aspect of the present application, a terminal device is provided, which includes the camera module as described above.

Based on foretell module and terminal equipment of making a video recording, utilize piezoelectric actuator to turn into elastic deformation's mode with the electric energy and drive photosensitive element removes, through with piezoelectric actuator electricity connect in fixed substrate's electric connector reduces the influence that electric connecting part removed photosensitive element, can further improve anti-shake effect.

For a better understanding of the nature and technical content of the present application, reference should be made to the following detailed description and accompanying drawings, which are provided to illustrate the present application and are not intended to limit the scope of the present application in any way.

Drawings

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings, which are incorporated herein and constitute part of this disclosure, serve to provide a further understanding of the disclosure. The exemplary embodiments of the present disclosure and their description are provided to explain the present disclosure and not to limit the present disclosure. In the drawings:

fig. 1-2 are schematic structural diagrams illustrating a camera module and a terminal device according to an exemplary embodiment of the present application.

Fig. 3 is a schematic diagram illustrating a position structure of a piezoelectric actuator, a photosensitive element and a fixed substrate of a camera module and a terminal device according to an exemplary embodiment of the present application.

Fig. 4 to 6 are schematic structural views illustrating piezoelectric actuators of a camera module and a terminal device according to an exemplary embodiment of the present application.

Fig. 7 is a schematic view showing a piezoelectric element structure of a piezoelectric actuator of a camera module and a terminal device according to an exemplary embodiment of the present application.

Fig. 8 is a schematic structural diagram of a first piezoelectric actuator and a second piezoelectric actuator of an image pickup module and a terminal device according to an exemplary embodiment of the present application.

Fig. 9 is a schematic structural diagram of a camera module and a terminal device according to an exemplary embodiment of the present application.

Fig. 10 is a schematic view showing a connection relationship between a piezoelectric actuator and a fixed substrate of an image pickup module and a terminal device according to an exemplary embodiment of the present application.

Fig. 11 to 19 are schematic views showing the positional structures of the piezoelectric actuator and the guide unit of the camera module and the terminal device according to the exemplary embodiment of the present application.

Fig. 20 is a schematic structural diagram of a camera module and a terminal device according to an exemplary embodiment of the present application.

Fig. 21 is a schematic diagram illustrating a structure of a fixed substrate of a camera module and a terminal device according to an exemplary embodiment of the present application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other means, components, materials, devices, or the like. In such cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

A camera module and a terminal device according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1-2 are schematic structural diagrams of a camera module and a terminal device according to an exemplary embodiment of the present application.

As shown in fig. 1-2, the camera module 10 according to the exemplary embodiment of the present disclosure includes a fixed substrate 400, a lens assembly 600, a photosensitive assembly 100, and at least one piezoelectric actuator 200 and a supporting assembly 500. The fixing substrate 400 is used to dispose the lens assembly 600. The photosensitive assembly 100 is disposed under the fixed substrate 400 and on the support assembly 500. The at least one piezoelectric actuator 200 drives the supporting assembly 500 to drive the photosensitive assembly 100 to move on the imaging plane, wherein the at least one piezoelectric actuator 200 is electrically connected to the fixed substrate 400. The fixing substrate 400, the lens assembly 600, the at least one piezoelectric actuator 200, the photosensitive element 100 and the supporting assembly 500 can be detachably fixed together. Of course, the number of the at least one piezoelectric actuator 200 is not limited in this embodiment, and may be arbitrarily set according to actual needs.

Fig. 3 is a schematic diagram illustrating a position structure of a piezoelectric actuator, a photosensitive assembly and a fixing substrate of a camera module and a terminal device according to an exemplary embodiment of the present application. Fig. 4 to 6 are schematic structural views illustrating piezoelectric actuators of a camera module and a terminal device according to an exemplary embodiment of the present application.

Referring to fig. 3-6, according to an embodiment of the present application, at least one piezoelectric actuator 200 includes a piezoelectric element 221, a driving shaft 223, and a moving member 225. Referring to fig. 3, the at least one piezoelectric actuator 200 is located between the fixed substrate 400 and the photosensitive element 100, and further, the at least one piezoelectric actuator 200 is located in a gap between two parallel planes to which the fixed substrate 400 and the photosensitive element 100 respectively belong. The projection of the at least one piezoelectric actuator 200 in the optical axis direction of the camera module is located in the region of the supporting component 500, and the projection position is adjacent to the photosensitive component 100.

The piezoelectric element 221 generates a driving force, the moving member 225 is slidably in frictional contact with the driving shaft 223, the driving shaft 223 is connected to the piezoelectric element 221, and the piezoelectric element 221 may be disposed on the fixed substrate 400.

Compared with the driving mechanism in the prior art, the piezoelectric actuator 200, as a driving motor for driving the photosensitive assembly 100 to move, has the advantages of small size, large thrust and high precision, and has a relatively simple driving structure, is suitable for driving heavier products, and is more suitable for chip anti-shake and prism anti-shake applications. Compared with a magnetic driving mode, the electromagnetic interference prevention effect is better. Meanwhile, super-resolution control can be realized by utilizing the advantage of control precision in chip anti-shake.

According to the embodiment of the present application, the piezoelectric element 221 includes the piezoelectric substrate 2210 and the vibration substrate 2212, wherein the vibration substrate 2212 is located between the driving shaft 223 and the piezoelectric substrate 2210. The at least one piezoelectric actuator 200 is electrically connected to the electrical connector of the fixed substrate 400 through the flexible printed circuit board. The piezoelectric element 221 of at least one piezoelectric actuator 200 is supplied with a pulse voltage through a circuit layer of the electric connection member of the fixed substrate 400, so that the piezoelectric element 221 supplies vibration of the driving shaft 223 in the axial direction, and the driving shaft 223 slightly reciprocates in the axial direction, thereby driving the moving member 225 to linearly move on the driving shaft 223. And the rate at which the driving shaft 223 is vibrated in the axial direction can be controlled by supplying pulse voltages of different frequencies to the vibration part, thereby varying the rate at which the moving member 225 moves on the driving shaft 223.

According to the embodiment of the present application, the piezoelectric substrate 2210 is a substrate having a piezoelectric effect and contracting or expanding according to a polarization direction and an electric field direction, and the vibration substrate 2212 may have a constant thickness. The vibration substrate 2212 has a piezoelectric substrate 2210 connected to a single crystal type or a twin crystal type, and an electric potential is applied to the piezoelectric substrate 2210, and the difference in applied voltage is controlled by a controller, causing contraction and expansion actions of the piezoelectric substrate 2210 and the vibration substrate 2212.

According to the embodiment of the present application, the bending deformation principle of the composite layer of the piezoelectric substrate 2210 and the vibration substrate 2212. It is to be noted that the piezoelectric substrate 2210 and the vibration substrate 2212 have a disk shape, and in the present application, the piezoelectric substrate 2210 is mounted on the upper and lower surfaces of the vibration substrate 2212.

When the direction of the polarization of the piezoelectric substrate 2210 is different from the direction of the electric field due to the potential difference on the piezoelectric substrate 2210, the piezoelectric substrate 2210 is deformed in a direction in which the width direction thereof is expanded and the thickness thereof is reduced, and the vibration substrate 2212 is deformed convexly upward due to the expansion of the piezoelectric substrate 2210.

When the polarization direction of the piezoelectric substrate 2210 and the direction of an electric field applied to the piezoelectric substrate 2210 are the same, the piezoelectric substrate 2210 may be deformed and contracted such that its width becomes narrower and its thickness increases. The potential difference of the voltage applied to the piezoelectric substrate 2210 can be instantaneously inverted, and the piezoelectric substrate 2210 and the vibration substrate 2212 change the state of displacement accordingly, and if the above-described potential difference change is repeated, the piezoelectric substrate 2210 and the vibration substrate 2212 can continuously vibrate up and down.

According to the embodiment of the present application, the piezoelectric element 221 further includes a plurality of piezoelectric telescopic bodies 2214 and a plurality of electrodes, and the plurality of piezoelectric telescopic bodies 2214 and the plurality of electrodes are alternately laminated. When the piezoelectric element 221 has a laminated structure, a large amount of displacement can be obtained even when a small electric field is applied. When the directions of the electric fields are different due to the potential differences of the electrodes, the piezoelectric telescopic bodies 2214 are deformed, expanded or contracted, and the driving shaft 223 is driven to reciprocate by the constant deformation of the piezoelectric element 221.

According to the embodiment of the present application, the piezoelectric element 221 has a rectangular parallelepiped shape having sides along the X axis, the Y axis, and the Z axis, respectively, which are orthogonal to each other. In the present application, the length of the piezoelectric element 221 in the X-axis direction is 1mm, the length in the y-axis direction is 1mm, and the length (height) in the z-axis direction is 2mm. Of course, the present application does not limit the size thereof.

As shown in fig. 7, a plurality of electrodes are arranged in the plurality of piezoelectric telescopic bodies 2214, and a plurality of electrodes alternately sandwiching the plurality of piezoelectric telescopic bodies 2214 are inner electrodes 2216. The electrodes disposed on the surfaces of the piezoelectric telescopic bodies 2214 and disposed above and below the piezoelectric telescopic bodies are referred to as an upper electrode 22162 and a lower electrode 22167, respectively.

Further, the plurality of piezoelectric telescopic bodies 2214 arranged on the surfaces of the plurality of piezoelectric telescopic bodies 2214 and arranged on the side surfaces thereof are referred to as side surface electrodes 22161. When the piezoelectric telescopic body 2214 has 1 layer, a pair of electrodes is provided on the upper and lower surfaces of the piezoelectric telescopic body 2214, and the side electrodes 22161 are connected to an external circuit by soldering or the like. When the piezoelectric telescopic body 2214 has a plurality of layers, electrode layers having the same polarity are connected to each other through the side surface electrodes 22161, and the electrode layers of the positive and negative electrodes can be led out on both side surfaces.

Referring to fig. 5 and 6, it can be seen that the driving shaft 223 is shaped to have a cylindrical, polygonal or square shape according to the embodiment of the present application, and the driving shaft 223 is fixed to the vibration base plate 2212. In the present embodiment, the piezoelectric element 221 is bonded to the center of the upper surface thereof with an adhesive. The drive shaft 223 may be made of any one of carbon, heavy metals, carbides of heavy metals, borides of heavy metals, and nitrides of heavy metals as a main material component.

In this application, vibration base plate 2212 is piezoceramics pole or piezoceramics piece, and vibration base plate 2212 can be connected or mould plastics integrated into one piece through the viscose mode with drive shaft 223, and vibration base plate 2212 structure is simpler, the cost is lower, and this application does not do not limit. The vibration substrate 2212 is not limited to piezoelectric ceramics, and may be other structures capable of driving the photosensitive assembly 100 to move by using the piezoelectric principle, and the application is not limited thereto. The vibration substrate 2212 has one end connected to the piezoelectric substrate 2210 and the other end connected to the driving shaft 223, wherein the moving member 225 may be in frictional contact with the driving shaft 223.

According to the embodiment of the present application, the driving shaft 223 is fixed to the composite layer of the piezoelectric substrate 2210 and the vibration substrate 2212, and is fixed to the piezoelectric substrate 2210 or the vibration substrate 2212 according to the uppermost layer of the composite layer.

According to the embodiment of the present application, the control unit of the image pickup module can generate bending deformation of the composite layer of the piezoelectric substrate 2210 and the vibration substrate 2212 by applying a voltage to the piezoelectric substrate 2210. As above, if the voltage applied to the piezoelectric substrate 2210 repeats the potential difference change, the piezoelectric substrate 2210 and the vibration substrate 2212 can continuously vibrate up and down.

As shown in fig. 5, according to an embodiment of the present application, the voltage applied by the control unit to the piezoelectric substrate 2210 of the at least one piezoelectric actuator 200 may include a forward voltage and a contraction voltage, and the forward voltage and the contraction voltage are varied from a first voltage to a second voltage during a first period, and the second period is varied from the second voltage to the first voltage during a second period, wherein the first period of the forward voltage is longer than the second period, and the second period of the contraction voltage is longer than the first period.

The case of a in fig. 5 is a case where the piezoelectric substrate is in the original position without the turn-on voltage. The forward and reverse voltages embodied in the case of fig. 5 b are configured to cause the piezoelectric substrate 2210 to protrude upward during the first period by a stroke a, and the forward and reverse voltages embodied in the case of fig. 5 c are configured to cause the piezoelectric substrate 2210 to protrude downward during the second period. After the first period of applying the positive voltage, when the moving member 225 moves forward on the driving shaft 223 and the contraction voltage is applied, the moving member 225 may move backward on the driving shaft 223 by a stroke B during the second period.

According to the embodiment of the present application, when a forward voltage is repeatedly applied to the piezoelectric substrate 2210, the piezoelectric substrate 2210 of one end expands and contracts, so that the vibration substrate 2212 is convexly deformed in one direction into a bowl shape, and is rapidly restored to the original flat plate shape.

According to the embodiment of the present application, when a contraction voltage is repeatedly applied to the piezoelectric substrate 2210, the piezoelectric substrate 2210 at the other end expands and contracts, so that the vibration substrate 2212 is convexly deformed into a bowl shape in the other direction and is rapidly restored to the original flat plate shape.

When the length direction of the driving shaft 223 of the at least one piezoelectric actuator 200 is arranged along the X-axis direction, the vibrating substrate 2212 of the at least one piezoelectric actuator 200 drives the driving shaft 223 to perform a linear reciprocating motion along the X-axis direction, so that the driving shaft 223 drives the moving member 225 to drive the driven member to move along the X-axis direction through a friction force. When the length direction of the driving shaft 223 of the another at least one piezoelectric actuator 200 is arranged along the Y-axis direction, the vibration substrate 2212 of the at least one piezoelectric actuator 200 drives the driving shaft 223 to perform linear reciprocating motion along the Y-axis direction, so that the driving shaft 223 drives the moving member 225 to drive the driven member to move along the Y-axis direction through friction. The at least one piezoelectric actuator 200 can drive the driving shaft 223 through the vibrating substrate 2212 to drive the moving member 225 to move the driven member along two directions (X-axis direction and Y-axis direction) perpendicular to each other on the imaging plane through friction force.

When the driving shaft 223 reciprocates in the longitudinal direction of the shaft, the moving member 225 and the driving shaft 223 come into frictional contact, and when the vibration base 2212 is deformed in one direction into a bowl shape, the moving member 225 and the driving shaft 223 move together, and when the vibration base 2212 is quickly restored to the original flat plate shape, the driving shaft 223 also moves in the reverse direction, and since the moving member 225 is in a high-speed state, it cannot follow the movement of the driving shaft 223, and it cannot return to the original position, and it can only stay at the position.

Therefore, when the moving member 225 moves with a large amplitude of deformation of the vibration base 2212 during one movement, the above movement can be repeated by repeatedly applying the pulse voltage, and the moving member 225 can be moved to a target position. In addition, when the moving member 225 moves with a large amplitude of deformation of the plurality of piezoelectric telescopic bodies 2214 in one movement process, the movement can be repeated by repeatedly applying the pulse voltage, and the moving member 225 can be moved to a target position.

It should be noted that, compared with the driving mechanism in the prior art, the at least one piezoelectric actuator 200 not only has the advantages of small volume, large thrust, high precision, relatively simple driving structure, and suitability for driving heavier products, but also has a smaller structure, and the circuit extends through the side surface of the piezoelectric element 221, is relatively simple, and is suitable for being used in a module with a compact space.

The fixing substrate 400 has a mounting hole in which the lens assembly 600 can be mounted. The surface of the fixed substrate 400 is laid with a circuit layer to form an electrical connector, and the fixed substrate 400 is connected to an external electronic device main board through a flexible board and a connector to conduct. The circuit layer may be implemented as a Flexible Printed Circuit (FPC), a Flexible Printed Circuit (FPC) is disposed on the surface of the fixing substrate 400, and the Flexible Printed Circuit (FPC) may be attached to the upper surface of the fixing substrate 400 and connected to external electronic devices through the Flexible Printed Circuit (FPC). The piezoelectric actuator 200 and the photosensitive assembly 100 extend upward through a wire or a Flexible Printed Circuit (FPC) and are electrically connected to the Flexible Printed Circuit (FPC) on the surface of the fixed substrate 400, so as to realize circuit conduction. The at least one piezoelectric actuator 200 and the photosensitive element 100 may be electrically connected to the circuit layer of the fixing substrate 400 through a connection circuit, so as to realize the circuit conduction of the camera module 10.

The at least one piezoelectric actuator 200 and the photosensitive element 100 are disposed below the fixed substrate 400, and therefore, the at least one piezoelectric actuator 200 and the photosensitive element 100 need to be extended upward through a wire or a flexible board and electrically connected to a circuit layer of the electrical connector on the surface of the fixed substrate 400, and the circuit layer of the electrical connector is extended upward through a wire or a flexible board for conducting, so that the height space of the camera module 10 can be fully utilized, the structure of the camera module 10 is more compact, and the influence of the electrical connector on the movement of the photosensitive element is reduced.

Compare in the circuit board through photosensitive component 100 and realize switching on with external circuit, the embodiment of this application can reduce the length of photosensitive component 100's circuit board, and then simplifies the wire of module of making a video recording 10 and arrange.

The photosensitive assembly 100 is disposed on the supporting assembly 500, the supporting assembly 500 is driven by at least one piezoelectric actuator 200 to drive the photosensitive assembly 100 to move, and the fixing substrate 400 does not move, so as to achieve optical anti-shake of the camera module 10.

The fixed substrate 400 includes electrical connectors, and the at least one piezoelectric actuator 200 is electrically connected to the electrical connectors of the fixed substrate 400. The fixing substrate 400 is disposed on the light emitting side of the lens assembly 600 and the light incident side of the photosensitive assembly 100 for disposing the lens assembly 600, and the electrical connector of the fixing substrate 400 is electrically connected to at least one piezoelectric actuator to reduce the number of circuit board components.

The fixed substrate 400 is disposed between the lens assembly 600 and the photosensitive assembly 100, and the lens assembly 600 is disposed on a photosensitive path of the photosensitive assembly 100, so that the photosensitive assembly 100 can receive light projected from the lens assembly 600 for imaging.

According to the embodiment of the application, the electrical connector of the fixed substrate 400 comprises at least two LDS grooves arranged on the surface of the fixed substrate 400, the inner surfaces of the at least two LDS grooves are plated with the conductive plating layer, the depth of the LDS groove is not more than 20-30 μm, and the width of the LDS groove is not less than 60 μm.

In the LDS (laser direct structuring) groove, a conductive plating layer, such as ni-pd-au plating layer, is plated on the surface of the LDS groove, so as to avoid interference of other metals therein, thereby connecting the connection circuit of the at least one piezoelectric actuator 200 with the conductive plating layer in the LDS groove of the fixed substrate 400.

According to other embodiments of the present application, at least two wires may be integrally formed in the fixing substrate 400 by Insert Molding (Insert Molding) technology, so that the connection circuit of the at least one piezoelectric actuator 200 is electrically connected to the at least two wires to realize the derivation circuit.

As shown in fig. 8, according to the embodiment of the present application, the supporting assembly 500 includes a first base 501 and a second base 503, and at least one piezoelectric actuator 200 is disposed on the supporting assembly 500 and drives the supporting assembly 500 to move in a plane perpendicular to the optical axis direction. The at least one piezoelectric actuator 200 includes a first piezoelectric actuator 205 and a second piezoelectric actuator 201, and drives the first base to move in the first direction. The second base is driven to move along the second direction.

According to the embodiment of the present application, the photosensitive element 100 is disposed on the first base 501, and the first base 501 is driven by the first piezoelectric actuator 205 to drive the photosensitive element 100 to move along the first direction (X direction), so as to achieve optical anti-shake in the first direction. The first base 501 is disposed on the second base 503, and the second base 503 is driven by the second piezoelectric actuator 201 to drive the first base 501 to move along the second direction (Y direction), so as to drive the photosensitive assembly 100 to move along the second direction, thereby implementing optical anti-shake along the second direction. The first direction and the second direction are two directions perpendicular to each other along the imaging plane,

in the present application, the first direction is taken as an X-axis direction, and the second direction is taken as a Y-axis direction as an example. In the present application, the photosensitive assembly 100 is moved along two mutually perpendicular directions on the imaging plane by two different bases, and the two directions of optical anti-shake are separately driven, so that mutual interference is not generated.

The first base 501 is disposed between the photosensitive assembly 100 and the second base 503, and the second base 503 is disposed between the first base 501 and the outer frame 300, that is, the photosensitive assembly 100, the first base 501, the second base 503, and the outer frame 300 are sequentially disposed along the optical axis direction. The photosensitive assembly 100 is in transmission connection with at least one piezoelectric actuator 200, and the first piezoelectric actuator 205 is disposed on the second base 503 and drives the first base 501 to move along the X-axis direction relative to the second base 503, so as to drive the photosensitive assembly 100 to move along the X-axis direction, thereby achieving optical anti-shake along the X-axis direction.

The second base 503 has a connecting portion for movably connecting with the first base 501, that is, the second base 503 can drive the first base 501 to move along the same direction through the connecting portion when moving, the second piezoelectric actuator 201 is disposed on the fixed substrate 400 and/or the outer frame 300, and drives the second base 503 and the first base 501 to move along the Y-axis direction relative to the outer frame 300, so as to drive the photosensitive assembly 100 to move along the Y-axis direction, thereby achieving optical anti-shake along the Y-axis direction.

As shown in fig. 9, balls and rails are employed as guide structures for defining the direction in which the first and

second bases

501 and 503 move.

Specifically, at least one accommodating cavity capable of accommodating the second ball part 110 is formed between the first base 501 and the second base 503, and is used for supporting and maintaining the distance between the first base 501 and the second base 503, providing the movement of the first base 501 relative to the second base 503 in the direction of the X axis, and reducing the friction force during the movement by replacing the sliding friction with the rolling friction. Specifically, the bottom side of the first base 501 and the top side of the second base 503 have at least one rail along the X-axis direction, and the rails are opposite to each other and form a receiving cavity along the X-axis direction for receiving the second ball part 110 therein. According to the embodiment of the present application, the number of the receiving cavities and the balls is 4, and the receiving cavities and the balls are respectively located at four corners of the first base 501 and the second base 503.

Between the second base 503 and the outer frame 300, there is at least one accommodation cavity capable of accommodating the third ball part 111, for supporting and maintaining the distance between the second base 503 and the outer frame 300, and providing the movement of the second base 503 relative to the outer frame 300 in the Y-axis direction, and reducing the friction force during the movement by rolling friction instead of sliding friction. Specifically, the bottom side of the second base 503 and the top side of the outer frame 300 have at least one rail along the Y-axis direction, and the rails are located opposite to each other to form an accommodating cavity along the Y-axis direction, and accommodate the third ball part 111 therein. According to the embodiment of the present application, the number of the receiving cavities and the balls is 4, and the receiving cavities and the balls are respectively located at four corners of the first base 501 and the second base 503.

According to the embodiment of the present application, the first piezoelectric actuator 205 is located on an outer sidewall of the first base 501, and the first piezoelectric actuator 205 is fixed to the second base 503 and drives the first base 501 to move along the X-axis direction.

According to the embodiment of the present application, the piezoelectric element 221 of the first piezoelectric actuator 205 is fixed to the second base 503 by adhesive bonding, and the adhesive may be soft adhesive having elasticity. The longitudinal direction of the driving shaft 223 may be aligned with the X direction, and the other end of the driving shaft 223 may be fixed to the second base 503 by an adhesive having elasticity, or the other end of the driving shaft 223 may be movably connected to the second base 503, that is, suspended on the second base 503 or suspended, and the piezoelectric element 221 and the driving shaft 223 of the first piezoelectric actuator 205 may be freely vibrated without affecting the repeated vibration. The moving member 225 may be fixed to the first base 501 by an adhesive method, or may be fixed in a direction of being integrally formed with the first base 501, and the present application is not particularly limited. The piezoelectric element 221 may be formed integrally with the second base 503.

The second piezoelectric actuator 201 is located on an outer sidewall of the second base 503, and the second piezoelectric actuator 201 is fixed on the fixed substrate 400 and drives the second base 503 to move along the Y-axis direction.

As can be seen from fig. 10, the piezoelectric element 221 of the second piezoelectric actuator 201 is fixed to the bottom surface of the fixed substrate 400 by adhesive bonding. The adhesive can be flexible glue. The length direction of the driving shaft 223 may be aligned with the Y direction, and the other end of the driving shaft 223 may be fixed to the fixed substrate 400 by an adhesive having elasticity, or the other end of the driving shaft 223 may be movably connected to the fixed substrate 400, that is, suspended on the fixed substrate 400 or suspended in the air, without affecting the repeated vibration thereof, so that the piezoelectric element 221 and the driving shaft 223 of the second piezoelectric actuator 201 may freely vibrate. The moving member 225 may be fixed to the second base 503 by an adhesive method, or may be fixed in a direction integrally formed with the second base 503, which is not particularly limited in the present application. The piezoelectric element 221 may be formed integrally with the fixed substrate 400.

According to the embodiment of the present application, the second piezoelectric actuator 201 is fixed to the fixing substrate 400 upward with the fixing substrate 400 as a reference surface, so that the assembly accuracy of the second piezoelectric actuator 201 can be improved, and the second piezoelectric actuator 201 can be kept in good flatness.

According to another embodiment of the present invention, the second piezoelectric actuator 201 may be fixed to the outer frame 300 by adhesive bonding, the longitudinal direction of the driving shaft 223 may be aligned with the Y direction, the other end of the driving shaft 223 may be fixed to the outer frame 300 by an adhesive having elasticity, or the other end of the driving shaft 223 may be movably connected to the outer frame 300, that is, suspended or suspended from the outer frame 300, without affecting the repeated vibration thereof, and the piezoelectric element 221 and the driving shaft 223 of the second piezoelectric actuator 201 may be allowed to freely vibrate. Of course, when a plurality of second piezoelectric actuators 201 are used, they may be fixed to the fixed substrate 400 and the outer frame 300 at the same time.

The first piezoelectric actuator 205 and the second piezoelectric actuator 201 are in the same horizontal plane, and the parallelism between the first piezoelectric actuator 205 and the second piezoelectric actuator 201 can be improved, so that the superposition of assembly tolerance generated during assembly molding is avoided, and the assembly precision of the camera module is improved.

Further, the first piezoelectric actuator 205 and the second piezoelectric actuator 201 are both disposed outside the photosensitive element 100, so as to avoid overlapping of the at least one piezoelectric actuator 200 and the photosensitive element 100 in the height direction, increasing the height of the photosensitive element 100, resulting in increase of the module height, or preventing the focal plane of the lens assembly 600 from falling onto the photosensitive chip, which affects the imaging effect.

Referring to fig. 11-19, first piezoelectric actuator 205 and second piezoelectric actuator 201 are located in several alternative mounting locations within the camera module, with first piezoelectric actuator 205 and second piezoelectric actuator 201 being located on adjacent sides of the camera module, respectively.

Referring to fig. 12 and 14, optionally, the first piezoelectric actuator 205 and the second piezoelectric actuator 201 are respectively disposed at the middle positions of the adjacent edges of the first base 501 and the second base 503, so that the photosensitive assembly 100 can keep moving more stably, and the stability of the camera module is improved.

As can be seen from fig. 13 and 15, according to another embodiment of the present application, the first piezoelectric actuator 205 and the second piezoelectric actuator 201 may also be disposed at the same corner of the camera module, that is, the first piezoelectric actuator 205 and the second piezoelectric actuator 201 are respectively led out from the same corner of the camera module, and a side where the driving shaft 223 of the first piezoelectric actuator 205 is located is perpendicular to a side where the driving shaft 223 of the second piezoelectric actuator 201 is located, so that when conducting a line, the line can be upwards extended from the same corner to the fixed substrate 400 through a wire or a flexible board, so as to implement the line conduction, thereby simplifying the circuit arrangement of the camera module. Of course, the first piezoelectric actuator 205 and the second piezoelectric actuator 201 may be disposed at other positions, and the present application is not limited thereto.

According to other embodiments of the present application, the second piezoelectric actuator 201 may be disposed above the second base 503 to avoid occupying a lateral space of the camera module, so as to reduce a lateral size of the camera module, and make the structure of the camera module 10 more compact.

According to the embodiment of the present application, the camera module 10 further includes a guiding unit 250, and the guiding unit 250 can provide a guiding function for the movement of the photosensitive assembly 100.

As can be seen in fig. 15 to 18, the guide unit 250 includes a first guide unit 207 and a second guide unit 203, and each set of guide units 250 is disposed opposite to the at least one piezoelectric actuator 200.

Specifically, the first guide unit 207 is disposed on the first base 501, and the first guide unit 207 is disposed opposite to the first piezoelectric actuator 205, that is, the first guide unit 207 is disposed on one side of the first base 501 along the X-axis direction, the first piezoelectric actuator 205 is disposed on the opposite side of the first base 501 along the X-axis direction, and the first guide unit 207 and the first piezoelectric actuator 205 may be disposed at the same height or at the same height, which is not limited in this disclosure.

The second guide unit 203 is disposed on the second base 503, and the second guide unit 203 is disposed opposite to the second piezoelectric actuator 201, that is, the second guide unit 203 is disposed on one side of the second base 503 along the Y-axis direction, the second piezoelectric actuator 201 is disposed on one side of the second base 503 along the Y-axis direction, and the second guide unit 203 and the second piezoelectric actuator 201 may be disposed at the same height or at the same height, which is not limited in this disclosure. Each set of guiding units 250 is located at two opposite sides of and in the same direction as the at least one piezoelectric actuator 200.

Optionally, the first guiding unit 207 may be a guide rod having a length direction consistent with the X direction, the first base 501 has at least one opening at a position where the guide rod is disposed, the guide rod is disposed in the opening so that the guide rod is movably connected with the first base 501, and the direction of movement of the first base 501 is controlled by the direction of the guide rod, so that the first base 501 can move along the X axis more accurately.

The second guiding unit 203 may also be a guide rod whose length direction is the same as the Y direction, the second base 503 has at least one opening at the position where the guide rod is disposed, the guide rod is disposed in the opening so that the guide rod is movably connected with the second base 503, and the direction of movement of the second base 503 is controlled by the direction of the guide rod, so that the second base 503 can move along the Y axis more accurately.

Both ends of the first guide unit 207 are fixed to the second base 503 so that the first base 501 can move in the X-axis direction under the guide of the first guide unit 207.

Both ends of the second guide unit 203 are fixed to the fixed substrate 400 so that the second base 503 can move in the Y-axis direction under the guide of the second guide unit 203.

Referring to fig. 16 to 18, according to another exemplary embodiment of the present application, the at least one piezoelectric actuator 200 of the camera module may be disposed eccentrically, and extending the at least one piezoelectric actuator 200 from a corner of the supporting component 500 may provide more room for the circuit board to extend upward.

Specifically, the first piezoelectric actuator 205 is disposed at one corner of the first base 501 along the X-axis direction, such that the driving shaft 223 of the first piezoelectric actuator 205 is disposed along the X-axis direction, the second piezoelectric actuator 201 is disposed at a corner of the second base 503 along the Y-axis direction, which is adjacent to the first piezoelectric actuator 205, such that the driving shaft 223 of the second piezoelectric actuator 201 is disposed along the Y-axis direction, that is, the first piezoelectric actuator 205 and the second piezoelectric actuator 201 are respectively located at two adjacent sides of the same corner of the camera module.

The first guide unit 207 is disposed opposite to the first piezoelectric actuator 205 in the same direction, and the first guide unit 207 is disposed at an opposite corner to the first piezoelectric actuator 205, the second guide unit 203 is disposed opposite to the second piezoelectric actuator 201 in the same direction, and the second guide unit 203 is disposed at an opposite corner to the second piezoelectric actuator 201.

Through the guiding effect of the guiding unit 250, the moving direction of the photosensitive assembly 100 driven by the supporting assembly 500 can be controlled more accurately, so as to achieve a better optical anti-shake effect. It will be understood by those skilled in the art that the guiding unit 250 may be a ball, a slider, or other structures capable of performing a guiding function, and the present application is not limited thereto.

According to the embodiment of the present application, when performing optical anti-shake in the X-axis direction, the first piezoelectric actuator 205 can generate a driving force along the X-axis direction, provide a pulse voltage to the piezoelectric element 221 of the first piezoelectric actuator 205, enable the piezoelectric element 221 to provide vibration of the driving shaft 223 in the X-axis direction, and enable the driving shaft 223 to slightly reciprocate in the X-axis direction, so as to drive the moving member 225 to linearly move on the driving shaft 223 in the X-axis direction, thereby driving the first base 501 to move in the X-axis direction, and further driving the photosensitive assembly 100 to move in the X-axis direction. When the piezoelectric element 221 is controlled to retract rapidly, the driving shaft 223 also retracts rapidly in the direction opposite to the movement, and the moving member 225 will be held in place although there is friction due to the inertia of the moving member 225.

When the optical anti-shake in the Y-axis direction is performed, the second piezoelectric actuator 201 can generate a driving force along the Y-axis direction, and provide a pulse voltage to the piezoelectric element 221 of the second piezoelectric actuator 201, so that the piezoelectric element 221 provides vibration of the driving shaft 223 in the Y-axis direction, and the driving shaft 223 slightly reciprocates in the Y-axis direction, thereby driving the moving member 225 to linearly move on the driving shaft 223 along the Y-axis direction, and driving the second base 503 to move along the Y-axis direction, thereby driving the photosensitive assembly 100 to move along the Y-axis direction.

When the piezoelectric element 221 is controlled to retract rapidly, the driving shaft 223 also retracts rapidly in the direction opposite to the movement, and the moving member 225 will be held in place although there is friction due to the inertia of the moving member 225. Of course, more than two piezoelectric actuators may be provided in the present application, and in the case where more than two piezoelectric drivers are provided, the principle thereof is the same as that of the two piezoelectric drivers.

Referring to fig. 19, according to another exemplary embodiment of the present disclosure, the first piezoelectric actuator 205 is disposed on the fixed substrate 400 and/or the outer frame 300, and drives the second base 503 and the first base 501 to move along the X-axis direction relative to the outer frame 300 at the same time, so as to drive the photosensitive assembly 100 to move along the X-axis direction, thereby achieving optical anti-shake along the X-axis direction.

The second piezoelectric actuator 201 is disposed on the second base 503, and drives the first base 501 to move along the Y-axis direction relative to the second base 503, so as to drive the photosensitive assembly 100 to move along the Y-axis direction, thereby achieving optical anti-shake along the Y-axis direction.

The second base 503 has a connecting portion for movably connecting with the first base 501, that is, when the second base 503 moves, the first base 501 can be driven by the connecting portion to move along the same direction.

According to the embodiment of the present application, specifically, the first piezoelectric actuator 205 is disposed on an outer sidewall of the second base 503, and the first piezoelectric actuator 205 is fixed to the fixed substrate 400 and drives the second base 503 to move along the X-axis direction. According to some embodiments, piezoelectric element 221 of first piezoelectric actuator 205 is adhesively fixed to the bottom surface of fixing substrate 400. The adhesive can be flexible glue.

The length direction of the driving shaft 223 of the first piezoelectric actuator 205 may be aligned with the X direction, and the other end of the driving shaft 223 may be fixed to the fixed substrate 400 by an adhesive having elasticity or may be movably connected to the other end of the driving shaft 223, that is, suspended on the fixed substrate 400 or suspended in the air, without affecting the repeated vibration thereof, so that the piezoelectric element 221 and the driving shaft 223 of the first direction piezoelectric actuator may freely vibrate.

The moving member 225 may be fixed to the second base 503 by bonding, or may be fixed in a direction integrally formed with the second base 503. The piezoelectric element 221 may be formed integrally with the fixed substrate 400. By fixing first piezoelectric actuator 205 upward to fixing base plate 400 with fixing base plate 400 as a reference surface, the accuracy of assembling first piezoelectric actuator 205 can be improved, and first piezoelectric actuator 205 can be kept in good flatness.

The second piezoelectric actuator 201 is disposed on an outer sidewall of the first base 501, and the second piezoelectric actuator 201 is fixed to the first base 501 and drives the first base 501 to move along the Y-axis direction. The piezoelectric element 221 of the second piezoelectric actuator 201 is fixed to the first base 501 by adhesive bonding, and the adhesive may be soft rubber having elasticity.

The driving shaft 223 of the second piezoelectric actuator 201 may have a longitudinal direction that coincides with the Y direction, and the other end of the driving shaft 223 may be fixed to the second base 503 by an adhesive having elasticity or may be movably connected to the other end of the driving shaft 223, that is, may be suspended on the second base 503 or suspended in the air, without affecting the repetitive vibration thereof. The piezoelectric element 221 and the drive shaft 223 of the second piezoelectric actuator 201 may be allowed to freely vibrate.

The moving member 225 may be fixed to the first base 501 by an adhesive method, or may be fixed in a direction integrally formed with the first base 501. The piezoelectric element 221 may be formed integrally with the second base 503.

According to the embodiment of the present application, the lens assembly 600 includes a lens and a lens carrier 401, and the lens is installed in the lens carrier 401, that is, the lens assembly 600 may be a focus lens. In the embodiment of the present application, the lens assembly 600 may also be an auto-focus lens, that is, an auto-focus driving portion 420 is disposed on the lens carrier 401, and the auto-focus driving portion 420 is used for driving the lens to move along the optical axis direction, so as to implement auto-focus. Of course, the present application does not specifically limit the type of the lens.

According to some embodiments of the present application, the lens can be mounted in the lens carrier 401 through bonding, buckling, or threads, and the like, and the lens carrier 401 in the present application can be set to be an integrated structure, so that the lens carrier 401 has a function of a lens barrel, and is used for accommodating at least two lenses of the lens in the lens barrel, and the lens carrier 401 drives the lens to move to realize automatic focusing. The size of lens cone in the lens can be subtracted to the integral type structure in this application to reduce the clearance that exists between lens cone and carrier, consequently can realize reducing the beneficial effect of making a video recording the module size. The lens assembly 600 is disposed on the fixing substrate 400, and the circuit layer of the fixing substrate 400 is used for conducting a circuit.

The camera module 10 further includes an outer frame 300, the outer frame 300 is located outside the camera module 10 and can be used as a housing of the camera module, and a gap exists between the supporting assembly 500 and the outer frame 300, so that when the optical anti-shake is performed, the supporting assembly 500 does not contact with the outer frame 300 to generate friction, thereby affecting the optical anti-shake effect.

The camera module 10 further includes a housing (not shown) that can be coupled to the outer frame 300 for protecting the components of the camera module and blocking the electromagnetic waves generated by the camera module during operation, thereby providing an electromagnetic shielding effect. If the generated electromagnetic waves are emitted to the outside or to the outside of the camera module when the camera module is driven, the electromagnetic waves may affect other electronic components, which may cause a communication error or malfunction.

The material of the housing may be a metallic material, grounded through a ground plate so that the housing functions as an electromagnetic shield. The material of the shell can be plastic material, and the surface of the plastic material is coated with conductive material to block electromagnetic waves. The material of the housing is not limited in this application.

Specifically, the housing has a through hole so that light passing through the lens assembly 600 can be incident to the photosensitive assembly 100 for imaging, and the housing and the outer frame 300 form a receiving cavity for receiving the lens assembly 600, the photosensitive assembly 100 and the driving part therein to prevent the lens assembly 600, the photosensitive assembly 100 and the driving part from falling off and being damaged due to external impact.

Referring to fig. 20, according to the embodiment of the present application, the photosensitive assembly 100 includes a photosensitive element 104 and a circuit board assembly 106. The wiring board assembly 106 is used for carrying the photosensitive element 104. The Circuit Board assembly 106 includes a Circuit Board, an electronic component, and a gold wire, where the Circuit Board may be a Printed Circuit Board (PCB) or a rigid-flex Board.

Optionally, the Circuit board may also be a reinforced FPC (Flexible Printed Circuit board), where the rigid-flex board includes a stacked PCB and an FPC, the reinforced Flexible Circuit board includes a stacked FPC and a reinforcing sheet, and the reinforcing sheet may be a sheet such as a steel sheet with good heat dissipation performance.

According to example embodiments, the FPC may be electrically connected to the circuit layer of the fixing substrate 400 by extending upward at a side or corner of the camera module having a margin. Like this, compare with traditional connected mode, can reduce the influence to photosensitive assembly removes, can further improve anti-shake effect. In addition, the length of the wiring board can be reduced, and the wiring can be made simpler.

Photosensitive element 104 locates on the circuit board, and with circuit board electric connection, photosensitive element 104 can respond to light, and the sensitization function through self is formed images with light signal conversion for the signal of telecommunication, and one side that photosensitive element 104 kept away from the circuit board includes the sensitization district and encircles the non-sensitization district that the sensitization district set up.

According to example embodiments, the photosensitive assembly 100 may further include a filter assembly 108. The filter assembly 108 may include a filter disposed above the photo sensor chip and supported by the support 102, and the support 102 is fixed to the circuit. The photosensitive element 104, the circuit board assembly 106 and the filter assembly 108 are packaged into a whole to form a closed space. Accommodate photosensitive element 104 in this enclosure, promoted photosensitive chip's closure, guaranteed that photosensitive element 104 formation of image does not receive the influence of dust in the module preparation of making a video recording or use. According to some embodiments, optical anti-shake may be achieved by driving the entire photosensitive assembly 100 to move.

According to other exemplary embodiments, the support 102 may be replaced by a package, that is, a package is formed on the circuit, the package may be used to embed the electronic element and/or the non-photosensitive area of the photosensitive element 104, and the package may be integrally formed on the circuit board, which not only reduces the height of the camera module, but also protects the electronic element from being contaminated and damaged. The package may also be used to support the optical filter instead of the support 102.

As can be seen from fig. 21, according to the embodiment of the present application, the auto-focus driving portion 420 is disposed in any one of the corner regions of the spare space of the fixed substrate 400, so as to drive the lens carrier 401 to move along the optical axis.

The autofocus driving unit 420 includes an autofocus coil 405 and an autofocus magnet 403, and the autofocus coil 405 is mounted on one side wall of the fixed substrate 400. The autofocus magnet 403 is attached to a magnet attachment portion of the lens carrier 401 facing the autofocus coil 405.

Further, the autofocus magnet 403 may be embedded in or attached to the sidewall of the lens carrier 401, i.e. the autofocus magnet 403 may be embedded in or attached to the outer sidewall or inner sidewall of the lens carrier 401, such that the autofocus coil 405 and the autofocus magnet 403 are disposed opposite to each other.

The auto-focus coil 405 and the auto-focus magnet 403 in the present application are disposed at the middle position of the sidewall, so that the lens can keep moving smoothly, and prevent tilting. In other embodiments of the present application, the autofocus coil 405 and the autofocus magnet 403 may also be disposed at a corner between the lens carrier 401 and the fixed substrate 400, which is not limited in the present application.

According to other embodiments, an autofocus adjustment sensor may be disposed inside the autofocus coil 405 or on an adjacent sidewall, and the autofocus adjustment sensor may sense a change in position of the lens carrier 401 with respect to the fixed substrate 400 during autofocus, and the autofocus adjustment sensor may select a hall element in the present application, so that the change in position of the lens carrier 401 may be accurately measured.

The conductive circuit of the auto-focus coil 405 is electrically connected to the fixed substrate 400 through an auto-focus flexible printed circuit board (FPC) 407, and when the auto-focus coil 405 is powered on through the auto-focus flexible printed circuit board (FPC) 407, a driving force along the optical axis direction is generated between the auto-focus coil 405 and the auto-focus magnet 403 to drive the lens carrier 401 to drive the lens to move along the optical axis direction, thereby achieving auto-focus. Of course, the fixing substrate 400 may be a part of the autofocus driving part 420.

According to the embodiment of the present application, the autofocus driving part 420 may further include a ball part, and at least one receiving cavity for receiving the first ball part 409 is formed between the lens carrier 401 and the fixed substrate 400, for supporting and maintaining a distance between the lens carrier 401 and the fixed substrate 400, and for providing a movement between the lens carrier 401 and the base in the optical axis direction, and reducing a friction force of the lens carrier 401 when moving by rolling friction instead of sliding friction.

Specifically, the outer sidewall of the lens carrier 401 has at least one first track along the optical axis direction (Z-axis direction), the inner sidewall of the fixed substrate 400 has at least one second track along the optical axis direction (Z-axis direction), and the position of the first track and the position of the second track are arranged oppositely, so that at least one first accommodating cavity is formed between the lens carrier 401 and the fixed substrate 400, and the first accommodating cavity can accommodate the first ball part 409 therein, so as to provide the lens carrier 401 to move along the optical axis direction (Z-axis direction) relative to the fixed substrate 400. Since the first accommodation chamber is formed by the provision having directivity, the first ball part 409 can be moved in the Z-axis direction, and the moving direction of the lens can be further accurate in the autofocus.

According to the embodiment of the present application, the number of the first accommodating cavities may be 2, and when the accommodating cavities are disposed on one side of the auto-focusing magnet 403, the two first accommodating cavities are disposed on two sides of the auto-focusing magnet 403, so that the lens carrier 401 moves more stably without tilting during auto-focusing. Of course, the first receiving cavity may be disposed at other positions of the lens carrier 401 and the fixing substrate 400, and the application is not limited thereto. In other embodiments, a raised slider may be provided on the lens carrier 401 to reduce the friction between the lens carrier 401 and the base through movement of the slider.

Finally, it should be noted that: although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. The utility model provides a module of making a video recording which characterized in that includes:

a lens assembly;

the fixed substrate is used for arranging the lens assembly and comprises an electric connecting piece;

the photosensitive assembly is arranged below the fixed substrate;

the photosensitive assembly is arranged on the supporting assembly;

the photosensitive assembly is in transmission connection with the at least one piezoelectric actuator, the at least one piezoelectric actuator drives the supporting assembly to drive the photosensitive assembly to move on the imaging plane, and the at least one piezoelectric actuator is electrically connected with the electric connector of the fixed substrate.

2. The camera module of claim 1, wherein the at least one piezoelectric actuator is electrically connected to electrical connections of the fixed substrate via a flexible printed circuit board.

3. The camera module of claim 1, wherein each piezoelectric actuator comprises a mover, a drive shaft, and a piezoelectric element, wherein,

the driving shaft is connected to the piezoelectric element;

the moving member is slidably and frictionally disposed on the drive shaft.

4. The camera module of claim 3, wherein each piezoelectric actuator comprises a piezoelectric substrate and a vibrating substrate, wherein,

one end of the vibration substrate is connected to the piezoelectric substrate, and an electric potential is applied to the piezoelectric substrate to cause contraction or expansion of the piezoelectric substrate and the vibration substrate, which drives the driving shaft to move.

5. The camera module of claim 3, wherein each piezoelectric actuator comprises a plurality of piezoelectric telescopic bodies and a plurality of electrodes, wherein,

the plurality of piezoelectric telescopic bodies and the plurality of electrodes are alternately stacked, when the directions of electric fields caused by potential differences on the plurality of electrodes are different, the plurality of piezoelectric telescopic bodies deform, and the driving shaft is driven to reciprocate by continuous deformation of the piezoelectric element.

6. The camera module of claim 1, wherein the electrical connections of the mounting substrate comprise:

the LED lamp comprises at least two LDS grooves arranged on the surface of the fixed substrate, and conductive coatings are plated on the inner surfaces of the at least two LDS grooves.

7. The camera module of claim 1, wherein the electrical connections of the mounting substrate comprise:

and a circuit layer is laid on the surface of the fixed substrate and used for conducting the circuits of the photosensitive assembly, the at least one piezoelectric actuator and external electronic equipment.

8. The camera module of claim 1, wherein the electrical connections of the mounting substrate comprise:

at least two wires are integrally formed in the fixed substrate.

9. The camera module of claim 1, wherein the support assembly comprises:

the second base is arranged on the outer frame body in a sliding manner along a second direction;

the first base is slidably arranged on the second base along a first direction, and the photosensitive assembly is arranged on the first base; wherein, the first and the second end of the pipe are connected with each other,

the first direction and the second direction are two mutually perpendicular directions in a plane perpendicular to the optical axis direction along the axial direction of the lens.

10. The camera module of claim 9, wherein the at least one piezoelectric actuator comprises:

a first piezoelectric actuator that drives the first base to move in a first direction;

and a second piezoelectric actuator driving the second base to move in a second direction.

11. The camera module of claim 9, wherein the at least one piezoelectric actuator comprises:

a first piezoelectric actuator that drives the second base to move in a first direction;

and the second piezoelectric actuator drives the first base to move along the second direction.

12. The camera module of claim 10, further comprising:

the first guide unit is arranged on one side opposite to the first piezoelectric actuator and used for guiding the first base to move along a first direction;

and the second guide unit is arranged on the opposite side of the second piezoelectric actuator and used for guiding the second base to move along the second direction.

13. The camera module of claim 11, wherein the first piezoelectric actuator and the second piezoelectric actuator are located at a same horizontal plane.

14. The camera module of claim 13, wherein the first piezoelectric actuator and the second piezoelectric actuator are both disposed outside the photosensitive element.

15. The camera module of claim 14, wherein the first piezoelectric actuator is located on an outer sidewall of the first base.

16. The camera module of claim 14, wherein the second piezoelectric actuator is located on an outer sidewall of the second base.

17. The camera module of claim 12, wherein the first piezoelectric actuator and the first guide unit are respectively disposed at a middle position of opposite sides of the first base along the first direction.

18. The camera module of claim 12, wherein the second piezoelectric actuator and the second guide unit are respectively disposed at intermediate positions on opposite sides of the second base along the second direction.

19. The camera module according to claim 12, wherein the first piezoelectric actuator and the first guide unit are respectively provided at diagonal positions on opposite sides of the first base in the first direction.

20. The camera module of claim 12, wherein the second piezoelectric actuator and the second guide unit are respectively disposed at diagonal positions on opposite sides of the second base along the second direction.

21. The camera module of claim 13, wherein the first piezoelectric actuator and the second piezoelectric actuator are located at a same corner of the camera module.

22. The camera module of claim 1, wherein the at least one piezoelectric actuator is disposed between the photosensitive element and the fixed substrate, and a projection of the at least one piezoelectric actuator in a direction of an optical axis of the camera module is located in a region of the support element.

23. The camera module of claim 1, wherein the photosensitive element is electrically connected to an electrical connector of the stationary substrate.

24. A terminal device, characterized in that it comprises a camera module according to any one of claims 1 to 23.