CN116419047A

CN116419047A - Camera module and electronic equipment

Info

Publication number: CN116419047A
Application number: CN202111680621.5A
Authority: CN
Inventors: 吕权明; 鲍朱鹏; 彭书胜; 荣一骑
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-07-11

Abstract

The application provides a module and electronic equipment make a video recording, the module of making a video recording includes: a housing having an interior cavity; the suspension bracket comprises a movable carrier and an elastic cantilever which are connected with each other, wherein the movable carrier is loaded with an image sensor, the elastic cantilever suspends the movable carrier in the inner cavity, the movable carrier and the elastic cantilever are of a lamellar structure, signal wires are arranged on the movable carrier and the elastic cantilever, and the image sensor is electrically connected with an external element through the signal wires; and the driving mechanism is used for driving the suspension bracket to move so as to drive the image sensor to rotate or translate on a plane perpendicular to the optical axis. The suspension bracket in the camera module provided by the application is simple in structure and easy to realize, can simplify the production process of the camera module, and reduces the processing difficulty.

Description

Camera module and electronic equipment

Technical Field

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

Background

Along with the progress of technology and the development of economy, people have increasingly higher requirements on the camera function of portable electronic devices, so that not only are camera modules configured by the electronic devices required to realize background blurring and clear night shooting, but also the electronic devices are required to have an optical anti-shake (optical image stabilization, OIS) function. So as to improve the photographing quality and the photographing experience of the user.

When the gyroscope in the camera module detects tiny movement, the optical anti-shake technology transmits a signal to an image chip to calculate the displacement to be compensated, and then the lens or the image sensor is translated and rotated in the opposite direction by a driving mechanism such as a Voice Coil Motor (VCM) to overcome the image blurring caused by the shake of the camera.

In the related document, a technology is disclosed in which an image sensor is carried on a carrier made up of a plurality of wires by driving the image sensor to move by a voice coil motor, and when the voice coil motor drives the image sensor to move, the wires deform under force and provide a repulsive force so that when the force of the voice coil motor is removed, the wires can drive the image sensor to reset. The spring wire is also provided with a signal wire for realizing signal conduction between the image sensor and an external electrical element (such as a circuit board).

In order to ensure that the spring wire has enough elasticity, the width of the spring wire needs to be very narrow (in the order of tens of micrometers), so that the signal wire is difficult to continuously arrange on the spring wire, and the camera module adopting the scheme is difficult to process due to the fact that the production process is complex, and the reduction of the production cost is not facilitated.

Disclosure of Invention

The application provides a make a video recording module and electronic equipment, this suspension support in the module of making a video recording's simple structure and easy realization can simplify the production technology of the module of making a video recording, reduce the processing degree of difficulty.

In a first aspect, a camera module is provided, including a housing having an interior cavity; the suspension bracket comprises a movable carrier and an elastic cantilever which are connected with each other, wherein the movable carrier is loaded with an image sensor, the elastic cantilever suspends the movable carrier in the inner cavity, the movable carrier and the elastic cantilever are of a lamellar structure, signal wires are arranged on the movable carrier and the elastic cantilever, and the image sensor is electrically connected with an external element through the signal wires; and the driving mechanism is used for driving the suspension bracket to move so as to drive the image sensor to rotate or translate on a plane perpendicular to the optical axis.

The suspension bracket in the camera module provided by the embodiment of the application is an elastic bracket, on one hand, the structural supporting force can be provided for suspending the image sensor, and on the other hand, the reverse elastic force can be provided for resetting the image sensor. The movable carrier seat and the elastic cantilever of the suspension bracket are respectively provided with a signal wire for electrically connecting the image sensor and an external element, so that the suspension bracket also has the conductivity, can supply power to the image sensor and conduct signals of the image sensor. The suspension bracket in the embodiment of the application has a plurality of functions such as suspension, rebound and conduction, and additional rebound and conduction devices are not required to be arranged, so that the internal structure of the camera module can be simplified, and the internal layout design of the camera module can be optimized. In addition, the suspension bracket has high integration degree, so that the camera module can be miniaturized and lighter.

The movable carrier and the elastic cantilever in the embodiment of the application are of a lamellar structure, and the signal line is arranged on the lamellar structure, so that the process is simple and easy to realize, the production process of the camera module can be simplified, the processing difficulty is reduced, the production cost of enterprises is reduced, and the production efficiency is improved.

The elastic cantilever provided by the embodiment of the application is connected with the movable carrier and the external element, and the movable carrier is easy to rotate or move in a translational mode along the plane perpendicular to the optical axis, and is not easy to move along the direction parallel to the optical axis. The direction of optical axis is generally defined as being parallel with the Z axle, so the removal carrier in this application can drive image sensor and carry out X axle and Y axle translational motion to rotate and be difficult for along the Z axle translation round the Z axle easily, when realizing triaxial anti-shake (X axle translation, Y axle translation and Roll axle rotation), can solve the crosstalk problem of autofocus direction (i.e. Z to) simultaneously, also solve suspension wire equipment difficult problem. Above reason makes the module of making a video recording that this application embodiment provided have better optics anti-shake effect, can help the user to acquire the photographic image that the quality is higher, is favorable to promoting user's experience of shooing.

Optionally, the driving mechanism is configured to drive the image sensor to perform any one of X-axis translation, Y-axis translation and Roll axis rotation, so that the image capturing module has a better optical anti-shake effect.

Alternatively, the image sensor may be a complementary metal oxide semiconductor (complementary metal-oxide semiconductor, CMOS) image sensor or a charge coupled device (charge coupled device, CCD) image sensor or the like, but is not limited thereto. The image sensor is mainly used for performing photoelectric conversion and Analog/Digital (a/D) conversion on an optical signal of light, so as to output image data for display by a display unit such as a display screen.

Alternatively, the driving mechanism is a micro electromechanical motor, a shape memory alloy motor, a voice coil motor, or the like, but is not limited thereto.

Alternatively, the elastic cantilever may be provided in plural, for example, two, 3, 4 or more, which is not limited in this application. The plurality of elastic cantilevers can be distributed along the circumference of the movable carrier, for example, the plurality of elastic cantilevers can be symmetrical in center or axisymmetrical relative to the center of the movable carrier, and good operation stability of the suspension bracket can be further ensured.

In one possible design, the sheet-like structure is a metal reed, the signal line is disposed on the metal reed, and an insulating layer is disposed between the signal line and the metal reed.

Through setting up metal reed as the major structure of hanging the support, metal reed itself has elasticity and certain mechanical support performance for the simple structure of hanging the support and easily realize, and make to hang the support and have a plurality of functions such as hanging, resilience and electrically conductive simultaneously.

Alternatively, the movable carrier and the elastic cantilever may be formed of other non-conductive and elastic sheet-like structures with certain mechanical supporting properties, such as plastic sheets, and no insulation is required between the signal wire and the sheet-like structures, i.e. no insulation layer is required.

In one possible design, the resilient cantilever includes an elongated narrow band structure having a plurality of segments, with an included angle between adjacent two of the segments. Here, the angle formed between two adjacent segments means that the extending directions of the two adjacent segments are different, and the two segments are bent to form an angle greater than 0 degrees. For example, the angle between the two sections may be 90 degrees, where two adjacent sections are perpendicular to each other. This application is including having the rectangular shape narrowband structure of a plurality of segmentation through setting up the elastic cantilever for the elastic cantilever has less width and great length, and forms the contained angle through setting up between two adjacent segmentation, makes the elastic cantilever can form space bending structure through a plurality of designs of bending, can make the elastic cantilever have better deflection and toughness from this, and can realize better elastic deformation effect. The elastic cantilever has smaller width and larger length, so that the elastic cantilever is easier to deform, and the deformation can be uniformly dispersed, so that the elastic cantilever can ensure good stability when larger displacement occurs.

In one possible design, one end of the elastic cantilever is connected to the movable carrier, and the other end extends from the interior of the inner cavity to the outside of the housing and is provided with a connection terminal for electrical connection with the external element.

Through the setting, the length of the elastic cantilever can be increased as much as possible, so that the elastic cantilever is easier to deform, deformation can be uniformly dispersed, the elasticity of the elastic cantilever is more uniform and controllable, and good running stability can be ensured. Meanwhile, the elastic cantilever is easier to deform, so that the requirement on the output force of the driving mechanism can be reduced, and the situation that the motor thrust is insufficient is avoided. And the outer side end of the elastic cantilever is provided with a connecting terminal, so that the elastic cantilever can be conveniently electrically connected with an external element, and the image sensor and the external element are electrically conducted.

Optionally, the outer end of the elastic cantilever may be fixedly connected to the housing, so that the image sensor may be suspended inside the camera module. For example, the outer end of the elastic cantilever may be fixed to the outer side of the top cover and/or the bottom plate by means of bonding, so that the length (i.e. the suspension distance) of the elastic cantilever may be increased as much as possible, so that the elastic cantilever is easier to elastically deform.

In addition, the connecting terminal is fixed on the external element, and the elastic cantilever connects the movable carrier and the external element, so that the whole suspension bracket is easy to move in a translational manner along the X axis and the Y axis, and is easy to rotate around the Z axis and not easy to translate along the Z axis, and the problem of crosstalk in an Auto Focus (AF) direction can be solved while three-axis anti-shake (X axis movement, Y axis movement and Roll axis rotation) is realized, and meanwhile, the problem of difficult suspension wire assembly is also solved.

In one possible design, the external component is a circuit board.

For example, the circuit board may be a motherboard of an electronic device. As another example, the circuit board may also be a sub-board of a foldable electronic device.

Optionally, the connection terminal may be connected to any electronic component such as a circuit board by using a plug-in connector, conductive adhesive, or soldering, and the type of the external component and the connection manner of the elastic cantilever and the external component are not particularly limited in this application.

In one possible design, the suspension bracket integrally forms a basin-shaped structure, the elastic cantilever is circumferentially arranged along the outer side of the movable carrier to form a side wall of the basin-shaped structure, the movable carrier forms a bottom wall of the basin-shaped structure, and the image sensor is located in the basin and is attached to the movable carrier.

Through the above setting, the whole structure of the suspension bracket can be more compact, the size of the XY plane can be reduced, the total height of the camera module is not increased, and meanwhile, the camera module has more elastic coefficient allowance, is favorable for reducing the volume of the camera module and accords with the use scene of mobile terminals such as mobile phones.

In one possible design, the elastic cantilever comprises two elastic cantilevers, and the two elastic cantilevers are symmetrically distributed at two ends of the movable carrier; each elastic cantilever comprises a first longitudinal arm and a first transverse arm, the whole first transverse arm is U-shaped and is connected with the movable carrier through the first longitudinal arm, and U-shaped openings of the first transverse arms of the two elastic cantilevers are oppositely arranged to form side walls of the basin-shaped structure. Through the arrangement, the balance performance of the suspension bracket can be improved, the anti-shake design can be simplified, and the output control of the driving mechanism is facilitated.

Alternatively, the front ends of the two first cross arms may be fixedly connected by a fixing plate, and the front ends of the two first cross arms may be connected to the fixing plate by means of rivets or screws. Through the arrangement, two oppositely arranged first cross arms form a complete frame-shaped structure, which is beneficial to improving the structural stability of the suspension bracket.

In one possible design, the elastic cantilever further comprises a second longitudinal arm and a second transverse arm, the first transverse arm, the second longitudinal arm and the second transverse arm are sequentially connected, and the connecting terminal is arranged on the second transverse arm.

In one possible design, the suspension bracket further comprises a support arm forming part of the side wall of the basin, the first cross arm being connected to the support arm by the first trailing arm, the support arm having a width greater than the width of the first trailing arm.

In one possible design, the movable carrier is in a ring structure, the middle of the movable carrier is provided with a hollowed-out part, and the image sensor is carried on the ring structure and covers the hollowed-out part. Through setting up fretwork portion, can reduce the weight of removing the carrier, and then can reduce the requirement of exerting oneself to actuating mechanism, avoid appearing the motor thrust condition that is insufficient.

Alternatively, the movable carrier may be a complete sheet structure (i.e. not including the hollowed portion), or may be formed by a plurality of separate sheet structures together.

In one possible design, the suspension brackets are formed by bending an integral sheet structure. Through above setting, can strengthen the integrality and the connection stability of removing carrier and elastic cantilever, simplify the overall structure who hangs the support more.

In one possible design, the integrated sheet structure includes a reed layer, an insulating layer, and a conductive layer that are sequentially stacked, and the signal line is located in the conductive layer. That is, the integrated sheet structure forms a reed and signal line integrated part (trace suspension assembly, TSA) at this time.

Optionally, the integrated sheet structure may also include a plurality of conductive layers, and two adjacent conductive layers are provided with insulating layers for electrical isolation design. That is, the integrated sheet structure may have a plurality of conductive layers and a plurality of insulating layers, and for the molded suspension bracket, it also includes a plurality of conductive layers and a plurality of insulating layers. Through the design, wiring design can be conveniently carried out, so that wiring operation is more flexible.

In one possible design, the outer side of the conductive layer is also covered with a protective layer.

In one possible design, the driving mechanism includes a magnet and a coil that are used in cooperation with each other, the magnet is fixed on the housing, the coil is disposed on the movable carrier, and the signal line is further used for supplying power to the coil.

In one possible design, the camera module further includes a magnet mounting frame disposed in the housing, and the magnet is fixed in the housing by the magnet mounting frame.

In one possible design, the camera module further includes: and the lens is used for refracting the incident light and then injecting the incident light into the image sensor.

In one possible design, the camera module further includes: and the reflecting element is used for reflecting the incident light rays and then injecting the incident light rays into the image sensor.

For example, the reflective element may be a triangular prism or a mirror.

In a second aspect, an electronic device is provided, including a camera module provided in any one of the possible implementation manners of the first aspect.

Because the electronic device adopts the camera module provided in the first aspect, the electronic device also has the technical effect corresponding to the camera module, and the details are not repeated here.

Alternatively, the electronic device may be a terminal device with a camera or photographing function, such as a mobile phone, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, an intelligent robot, a vehicle-mounted monitoring device, or other forms of devices with a camera or photographing function.

Drawings

Fig. 1 is a graph showing the comparison of the image capturing effect of an image capturing module having no optical anti-shake function and an optical anti-shake function.

Fig. 2 is a schematic diagram of five-axis optical anti-shake.

Fig. 3 is a schematic diagram of lens anti-shake and image sensor anti-shake.

Fig. 4 is a schematic overall structure of the camera module provided in the embodiment of the present application.

Fig. 5 is an exploded view of the camera module shown in fig. 4.

Fig. 6 is a schematic diagram of the assembly of the suspension holder and the image sensor.

Fig. 7 is a schematic view of the overall structure of the suspension bracket.

Fig. 8 is a schematic structural view of an integrated sheet structure constituting a suspension bracket before bending.

Fig. 9 is a cross-sectional view of the integrated sheet structure shown in fig. 8.

Fig. 10 is a schematic view of a magnet mounting structure.

Fig. 11 is a schematic overall structure of another example of an image capturing module according to the embodiment of the present application.

Fig. 12 is an exploded view of the camera module shown in fig. 11.

Fig. 13 is a schematic view of the overall structure of the suspension bracket in fig. 12.

Fig. 14 is a schematic overall structure of an electronic device according to an embodiment of the present application.

Fig. 15 is a control schematic diagram of an electronic device according to an embodiment of the present application.

Reference numerals:

1. a lens; 2. an image sensor;

100. a camera module; 110. a housing; 111. a top cover; 112. a bottom plate; 120. a lens; 130. a suspension bracket; 130a, a reed layer; 130b, an insulating layer; 130c, a conductive layer; 130d, a protective layer; 131. moving the carrier; 132. an elastic cantilever; 132a, a first trailing arm; 132b, a first cross arm; 132c, a second trailing arm; 132d, a second cross arm; 133. a support arm; 134. a fixing plate; 135. a connection terminal; 136. a spacing cavity; 137. a hollowed-out part; 138. a notch; 140. an image sensor; 150. a driving mechanism; 151. a magnet; 152. a coil; 160. a magnet mounting frame; 161. positioning columns; 170. a reflective element;

200. A housing; 300. a display screen; 1000. an electronic device.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," "side," "front," "rear," and the like indicate an orientation or positional relationship based on installation, and are merely for convenience of description of the present application and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone.

It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings by way of example, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.

Along with the progress of technology and the development of economy, people have increasingly higher requirements on the image capturing function of portable electronic devices, so that not only is the image capturing module configured by the electronic devices required to realize background blurring and clear night shooting, but also the electronic devices are required to have the function of optical anti-shake (optical image stabilization, OIS). So as to improve the photographing quality and the photographing experience of the user.

When a user uses the camera module of the electronic equipment to take a picture or record a video, the taken image is easy to blur due to the shake of the hand, the shake of a camera object or the limitation of a photographing optical environment, and the optical anti-shake technology can well solve the problem. Optical anti-shake refers to the prevention or reduction of instrument shake phenomenon occurring during capturing of optical signals by the arrangement of optical components, such as lens arrangement, in an imaging instrument, such as a camera, so as to improve imaging quality. One common approach is to perform shake detection by a gyroscope, and then translate, rotate a lens or an image sensor in opposite directions by a driving mechanism such as a Voice Coil Motor (VCM), so as to compensate for image blur caused by shake of an imaging apparatus during exposure.

Fig. 1 is a graph showing the comparison of the image capturing effect of an image capturing module having no optical anti-shake function and an optical anti-shake function. The part (a) in fig. 1 is an image capturing effect diagram of the image capturing module without the optical anti-shake function, and the part (b) in fig. 1 is an image capturing effect diagram of the image capturing module with the optical anti-shake function.

As shown in part (a) of fig. 1, t ₀ At the moment, the light rays are refracted by the lens 1 and then are emitted to the image sensor 2, and at the moment, the hands and the photo-object are in a static state, so that the captured image is ideal. At t ₁ At the moment, due to the shake of the hands of the user, the whole camera module is inclined and shaked, so that the light which is supposed to be shot into an S1 imaging point in the image is deviated and shot into an S2 imaging point, the image obtained by shooting is quite fuzzy, and the experience of the user is influenced.

As shown in part (b) of fig. 1, after the electronic device has an optical anti-shake function, after the gyroscope provided in the electronic device detects that shake occurs in the device, the lens 1 may be translated or rotated in the opposite direction by the voice coil motor to perform shake compensation, that is, to compensate for image blur caused by shake during exposure. At this time, the lens 1 is moved by the voice coil motor, so that the light which should be emitted into an imaging point of the S1 in the image can not be deflected to be emitted into other positions, further, the photographing quality can be guaranteed, and the photographing experience of a user is improved.

Fig. 2 is a schematic diagram of five-axis optical anti-shake. As shown in fig. 2, in order to perform shake compensation as much as possible to ensure shooting quality, after detecting shake conditions of an electronic device through a Sensor such as a gyroscope, an X-axis translation, a Y-axis translation, a rotation (Roll), a Yaw (Yaw), and a Pitch (Pitch) are required to be performed for a Lens (Lens), an image Sensor (Sensor), or an entire Camera Module (CM) in the camera, and 5-axis inverse motion compensation is performed, so that when the Lens, the image Sensor, and the camera module take a picture, the Lens, the image Sensor, and the camera module remain stationary in the electronic device, thereby realizing an anti-shake function during shooting.

In practical applications, due to physical limitations, it is often necessary to incorporate multiple drive mechanisms (actuators) to achieve full 5-axis inverse motion compensation. For example, lens anti-shake (Lens OIS) is anti-shake for Pitch (Pitch) and Yaw (Yaw) axes, image Sensor anti-shake (Sensor OIS) is anti-shake for X, Y axes, and camera module anti-shake (CM OIS) is anti-shake for Roll (Roll) axes.

Optical anti-shake is classified into 3 types, which are Lens anti-shake (Lens OIS) by moving a Lens, sensor anti-shake (Sensor OIS) by moving an image Sensor, and camera module anti-shake (CM OIS) by moving an entire camera module to realize optical anti-shake, respectively. Fig. 3 is a schematic diagram of lens anti-shake and image sensor anti-shake. The part (a) in fig. 3 is a schematic diagram of the anti-shake of the lens, and the part (b) in fig. 3 is a schematic diagram of the anti-shake of the image sensor.

As shown in part (a) of fig. 3, the lens anti-shake is realized by moving the lens 1, and the realization is simple without any electric signal movement. However, the lens anti-shake can only realize the two-axis anti-shake of deflection (Yaw) and Pitch (Pitch).

As shown in part (b) of fig. 3, the image sensor anti-shake can realize the X/Y/Roll axis anti-shake by moving the image sensor 2 to realize the optical anti-shake. However, the design scheme needs to realize signal movement of the image sensor 2, so that the technical difficulty is high, and the size of the module is increased. The embodiment of the application mainly relates to an anti-shake technical improvement of an image sensor.

The anti-shake of the camera module realizes optical anti-shake by moving the whole module (comprising a lens and an image sensor), the anti-shake range is large, the performance is better, but the design scheme needs to realize the signal movement of the image sensor and the lens at the same time, the technical difficulty is higher, and the module volume is required to be larger.

Either type of optical anti-shake must use a drive mechanism to move the lens, image sensor, or entire module. Currently, the driving mechanism for optical anti-shake typically includes a micro-electro-mechanical system (MEMS) motor manufactured by a MEMS process, a shape memory alloy (sharp memory alloy, SMA) motor, and a Voice Coil Motor (VCM).

The MEMS motor is realized by MEMS technology according to the principles of static electricity, thermoelectric, piezoelectric, electromagnetic and the like. The output capability of the MEMS motor is limited (micro Newton level), and the anti-shake of the large-size camera module cannot be realized. Meanwhile, since the mass of a lens or an image sensor is relatively large with respect to the MEMS motor, the MEMS motor is easily broken and failed due to inertia in a drop or the like.

The SMA motor can reduce the volume of the camera shooting module while guaranteeing the anti-shake performance of the SMA motor, but after a movable part and a static part in the camera shooting module are made into a suspension assembly, an image sensor is placed on the suspension assembly, and when the image sensor assembly and the motor module are provided by different factories, each module cannot independently perform function verification, so that a delivery interface is not decoupled, and delivery quality control is not facilitated. In addition, the SMA motor heats the SMA material with a burst power source to generate energy to actuate the image sensor. However, the spikes and heat may interfere with SMA actuation and sensor signals, introducing uncontrollable variations to the system. In addition, SMA motor drive is typically implemented by a pulse width modulation drive (pulse width modulation driving, PMW) drive scheme, with the image sensor being sensitive to PWM drive signals, resulting in image noise generation.

The most widely used anti-shake means at present is to drive a lens or an image sensor to move by a voice coil motor to realize optical anti-shake. The voice coil motor is a device for converting electric energy into mechanical energy, and the magnetic field of the permanent magnet and the magnetic field generated by the conductor of the electrified coil are utilized to act on the magnetic pole to generate motion, so that the magnetic pole drives the lens to do linear motion and limited swinging angle motion.

The voice coil motor generally includes three parts, a fixed part having an accommodating space for accommodating the movable part, a movable part, and an actuating part; the movable piece is movably arranged on the fixed piece, for fixedly mounting a lens or an image sensor; the actuating member is used for driving the movable member to move (such as translate and/or rotate) so as to perform inverse motion compensation, thereby realizing the optical anti-shake function.

The actuating piece generally comprises a combination of a coil and a magnet, the coil and the magnet can be respectively and fixedly arranged on the fixed piece and the movable piece, the coil and the magnet can be just opposite to each other and are arranged in parallel, driving force can be provided for the magnet by connecting direct current energy to the coil, the stress size and the stress direction of the magnet covered by a magnetic field can be controlled by changing the direct current size and the direct current direction of the coil, the magnet can provide the driving force for the movable piece to drive the movable piece to move, and the movable piece further drives a lens or an image sensor to move, so that an optical anti-shake function is realized.

In the related art, a technique is disclosed in which an image sensor is supported on a support (corresponding to the moving member) formed of a plurality of wires, and when the image sensor is driven to move, an actuator of the voice coil motor deforms under force and provides a repulsive force, so that when the force of the voice coil motor is removed, the wire can drive the image sensor to reset. The spring wire is also provided with a signal wire for realizing signal conduction between the image sensor and an external electrical element (such as a circuit board).

In order to ensure that the spring wire has enough elasticity, the width of the spring wire needs to be very narrow (in the order of tens of micrometers), so that the signal wire is difficult to continuously arrange on the spring wire, the current camera module is difficult to process due to the fact that the production process is complex, and the reduction of the production cost is not facilitated.

Based on this, this application embodiment provides a module and electronic equipment make a video recording, and this suspension support of module of making a video recording's simple structure just realizes easily, can simplify the production technology of module of making a video recording, reduces the processing degree of difficulty, is favorable to reducing enterprise manufacturing cost, improves production efficiency.

In a first aspect, an embodiment of the present application first provides an image capturing module 100, where the image capturing module 100 can be applied to various electronic devices such as a mobile phone. Fig. 4 is a schematic overall structure of the camera module 100 according to the embodiment of the present application. Fig. 5 is an exploded view of the camera module 100 shown in fig. 4. Fig. 6 is an assembly schematic diagram of the suspension 130 and the image sensor 140. As shown in fig. 4 to 6, the image capturing module provided in the embodiment of the present application includes a housing 110, a lens 120, a suspension bracket 130, an image sensor 140, a driving mechanism 150, and the like.

The housing 110 includes a bottom plate 112 and a top cover 111, and the top cover 111 covers the bottom plate 112 to form an inner cavity of the housing 110. The lens 120, the suspension mount 130, the image sensor 140, the driving mechanism 150, and the like are accommodated in the cavity.

The top cover 111 is mounted on the bottom plate 112, and plays a role in supporting and protecting each element in the inner cavity. The present application is not limited to how the top cover 111 is mounted on the bottom plate 112, but is not limited to, by means of screws, snaps, glue, and the like.

To reduce electromagnetic interference, the top cover 111 may be constructed of a non-magnetically conductive material. Alternatively, the top cover 111 may be constructed of plastic or non-magnetically conductive metal. For example, the top cover 111 may be made of stainless steel SUS316L, or aluminum alloy, copper alloy, magnesium alloy, or the like, and formed by forging, die casting, injection molding, or the like.

As shown in fig. 4 and 5, the top cover 111 has a cover shape including a top plate having an opening and a side plate disposed around the edge of the top plate, the lens 120 is fixedly disposed in the housing 110, and one end of the lens 120 protrudes to the outside through the opening in the top cover 111. The light can enter the camera module 100 from the end of the lens 120.

The lens 120 is composed of a plurality of lenses, which may include at least one concave lens and at least one convex lens, and the lens 120 is configured to refract light incident from the outside and then project the light onto the image sensor 140.

Optionally, the lens 120 further includes a barrel that can be used to mount a plurality of lenses in the lens 120.

Optionally, a power mechanism for moving the lens 120 for optical zooming is also included in the camera module 100. The power mechanism may be, for example, the aforementioned microelectromechanical motor, shape memory alloy motor, or voice coil motor.

The image sensor 140 is used to convert an optical signal corresponding to an object into an image signal. The image sensor 140 may be a complementary metal oxide semiconductor (complementary metal-oxide semiconductor, CMOS) image sensor or a charge coupled device (charge coupled device, CCD) image sensor or the like, but is not limited thereto. The image sensor 140 is mainly used for performing photoelectric conversion and Analog/Digital (a/D) conversion on an optical signal of light, thereby outputting image data for display by a display unit such as a display screen.

Optionally, in order to improve imaging quality, an infrared filter (not shown in the figure) is further disposed between the lens 120 and the image sensor 140, for implementing cut-off, filtering, and the like of infrared rays, and the infrared filter may be, for example, a white glass filter or a blue glass filter.

Further, the camera module 100 provided in the embodiment of the present application further has an optical anti-shake function, and can perform shake compensation, so that photographing quality can be guaranteed, and photographing experience of a user is improved.

Specifically, the camera module 100 further includes a suspension bracket 130 and a driving mechanism 150, the suspension bracket 130 is used for suspending the image sensor 140 inside the inner cavity of the camera module 100, and the driving mechanism 150 is used for driving the image sensor 140 to move through the suspension bracket 130 for optical anti-shake.

Specifically, the suspension bracket 130 includes a movable carrier 131 and an elastic cantilever 132 that are connected to each other, the movable carrier 131 carries the image sensor 140 thereon, and the elastic cantilever 132 suspends the movable carrier 131 in the cavity, i.e., the elastic cantilever 132 suspends the image sensor 140 in the cavity through the movable carrier 131. The movable carrier 131 and the elastic cantilever 132 are in a lamellar structure, signal wires are arranged on the movable carrier 131 and the elastic cantilever 132, and the image sensor 140 is electrically connected with external elements through the signal wires so as to realize signal conduction. The driving mechanism 150 is used for driving the image sensor 140 to move through the suspension bracket 130 for optical anti-shake. The driving mechanism 150 is used for driving the suspension bracket 130 to move so as to drive the image sensor 140 to perform a rotation or a translation motion on a plane perpendicular to the optical axis.

Here, the optical axis is the direction in which the optical system transmits light, and generally coincides with the rotation center line of the optical system. As shown in fig. 4, in the embodiment of the present application, the light rays are perpendicularly incident on the image sensor 140 along the opposite direction of the Z axis, so that the optical axis is parallel to the Z axis in fig. 4, and the "plane perpendicular to the optical axis" is a plane formed by the two-dimensional coordinate system formed by the X axis and the Y axis in fig. 4. Thus, referring to fig. 2 and 4, and in conjunction with the foregoing description of fig. 2, the driving mechanism 150 may cause the image sensor 140 to perform a rotational or translational motion in a plane perpendicular to the optical axis, and should include at least one of an X-axis translational motion (i.e., a forward or reverse motion along the X-axis), a Y-axis translational motion (i.e., a forward or reverse motion along the Y-axis), and a Roll-axis rotational motion (i.e., a rotational motion about the Z-axis in a plane formed by the X-axis and the Y-axis).

For example, the driving mechanism 150 is configured to drive the image sensor 140 to perform any one of X-axis translation, Y-axis translation and Roll axis rotation, so that the camera module 100 has a better optical anti-shake effect.

The elastic cantilever 132 has elasticity, when the driving mechanism 150 drives the image sensor 140 to move, the elastic force of the elastic cantilever 132 needs to be overcome, at this time, the elastic cantilever 132 is in a force accumulation state, and when the acting force of the driving mechanism 150 disappears, the elastic force of the elastic cantilever 132 enables the image sensor 140 to return to the initial position.

The suspension bracket 130 in the camera module 100 provided in the embodiment of the application is an elastic bracket, and can provide structural supporting force to suspend the image sensor 140 on one hand, and can provide reverse elastic force to reset the image sensor 140 on the other hand. The movable carrier 131 and the elastic cantilever 132 of the suspension bracket 130 are respectively provided with a signal line for electrically connecting the image sensor 140 and an external element, so that the suspension bracket 130 also has an electric conduction capability, and can supply power to the image sensor 140 and conduct signals of the image sensor 140. The suspension bracket 130 in the embodiment of the application has multiple functions of suspension, rebound, conduction and the like, and does not need to provide additional rebound and conduction devices, so that the internal structure of the camera module 100 can be simplified, and the internal layout design of the camera module 100 can be optimized. Further, since the suspension 130 is highly integrated, the imaging module 100 can be further miniaturized and made lightweight.

The movable carrier 131 and the elastic cantilever 132 in the embodiment of the application are in a sheet structure, and the process of arranging the signal wires on the sheet structure is simple and easy to realize, so that the production process of the camera module can be simplified, the processing difficulty is reduced, the production cost of enterprises is reduced, and the production efficiency is improved.

The elastic cantilever 132 in the embodiment of the present application connects the movable carrier 131 with an external element, and the movable carrier 131 is easy to perform a rotation or a translation motion along a plane perpendicular to the optical axis, but is not easy to perform a motion along a direction parallel to the optical axis. The direction of the optical axis is generally defined as being parallel to the Z axis, so the moving carrier 131 can drive the image sensor 140 to perform X-axis and Y-axis translational movements, and easily rotate around the Z axis to be difficult to translate along the Z axis, so that the cross-talk problem in the auto-focusing direction (i.e., Z direction) can be solved while three-axis anti-shake (X-axis translation, Y-axis translation, and Roll axis rotation) is realized, and meanwhile, the suspension wire assembly difficulty problem is also solved. The above reasons enable the camera module 100 provided in the embodiment of the present application to have a better optical anti-shake effect, and can help the user to obtain a photographic image with higher quality, which is beneficial to improving the photographing experience of the user.

Further, in the embodiment of the present application, the sheet-like structure is a metal reed, that is, the movable carrier 131 and the elastic cantilever 132 may be both made of metal reeds, at this time, the signal line is laid on the metal reed, the metal reed is used as a substrate to lay the signal line, and an insulating layer is provided between the signal line and the metal reed, so as to realize electrical insulation between the signal line and the metal reed. By providing the metal reed as the main body structure of the suspension bracket 130, the metal reed has elasticity and certain mechanical supporting performance, so that the suspension bracket 130 has a simple structure and is easy to realize, and the suspension bracket 130 has a plurality of functions of suspension, rebound, conductivity and the like.

Alternatively, in other embodiments, the movable carrier 131 and the elastic cantilever 132 may be formed of other non-conductive materials with elasticity and certain mechanical supporting properties, such as plastic sheets, where the signal line and the sheet structure do not need to be insulated, i.e. an insulating layer is not required.

Alternatively, the elastic cantilever 132 may be provided in plural, for example, two, 3, 4 or more, which is not limited in this application. The plurality of elastic cantilevers 132 may be disposed along a circumferential direction of the movable carrier 131, for example, the plurality of elastic cantilevers 132 may be centrosymmetric or axisymmetric with respect to a center of the movable carrier 131, so as to ensure good operation stability of the suspension bracket 130.

Alternatively, the movable carrier 131 and the elastic cantilever 132 may be integrally formed by a split structure through welding, bonding, screwing or clamping, or may be integrally formed by a monolithic sheet structure through bending, which is not limited in this application.

The specific structure of the suspension bracket 130 according to the embodiment of the present application will be further described with reference to the accompanying drawings. Fig. 7 is a schematic view of the overall structure of the suspension bracket 130.

As shown in fig. 5-7, in an embodiment of the present application, the resilient cantilever 132 includes an elongated narrow band structure having a plurality of segments, with an included angle between adjacent segments. Here, the angle formed between two adjacent segments means that the extending directions of the two adjacent segments are different, and the two segments are bent to form an angle greater than 0 degrees. For example, the angle between the two sections may be 90 degrees, where two adjacent sections are perpendicular to each other.

This application is including having the rectangular shape narrowband structure of a plurality of segmentation through setting up elastic cantilever 132 for elastic cantilever 132 has less width and great length, and forms the contained angle through setting up between two adjacent segmentation, makes elastic cantilever 132 can form the space through a plurality of designs of bending and bend the structure, can make elastic cantilever 132 have better deflection and toughness from this, and can realize better elastic deformation effect. The elastic cantilever 132 has smaller width and larger length, so that the elastic cantilever 132 is easier to deform, and the deformation can be uniformly dispersed, so that the elastic cantilever 132 can ensure good stability when larger displacement occurs.

For example, as shown in fig. 7, the elongated narrow band structure of the elastic cantilever 132 having a plurality of segments may include a first trailing arm 132a, a first cross arm 132b, a second trailing arm 132c, and a second cross arm 132d, which are sequentially connected in the figure.

Here, the longitudinal direction and the transverse direction are referred to the incident direction of the light, that is, the longitudinal direction or the axial direction, that is, the opposite direction of the Z-axis in fig. 4, and all planes (XY planes) perpendicular to the incident direction are transverse directions.

That is, the first trailing arm 132a extends toward the object side (i.e., away from the image sensor 140) along the optical axis direction, and the second trailing arm 132c extends toward the image side (i.e., toward the image sensor 140) along the optical axis direction.

The first cross arm 132b is perpendicular to the optical axis direction, and has a U-shaped structure, the lower side of the middle of which is connected to the first trailing arm 132a, and both end portions of which are connected to the second cross arm 132d through one second trailing arm 132c, respectively.

The second cross arm 132d is also perpendicular to the optical axis direction, that is, the second cross arm 132d is parallel to the first cross arm 132b, and the second cross arm 132d, the second trailing arm 132c, and the first cross arm 132b together form a U-shaped structure. With the above arrangement, the length of the elastic cantilever 132 can be increased as much as possible in a limited space, so that the elastic cantilever 132 is more easily elastically deformed. In other words, the above arrangement is advantageous in that the image capturing module 100 is more miniaturized and lightweight.

Further, as shown in fig. 4 and 5, the elastic cantilever 132 extends from the inside of the inner cavity to the outside of the housing 110. One end of the elastic cantilever 132 is connected to the movable carrier 131, and the other end extends from the inside of the cavity to the outside of the housing 110 and is provided with a connection terminal 135, and the connection terminal 135 is used for electrically connecting with an external element.

Through the above setting, the length of the elastic cantilever 132 can be increased as much as possible for the elastic cantilever 132 is easier to deform, and simultaneously the deformation can be uniformly dispersed, and the elasticity of the elastic cantilever 132 is more uniform and controllable, so that good running stability can be ensured. Meanwhile, the elastic cantilever 132 is easier to deform, so that the requirement on the output force of the driving mechanism 150 can be reduced, and the situation of insufficient motor thrust is avoided. The outer end of the elastic cantilever 132 is provided with a connection terminal 135, which can be conveniently and electrically connected with an external element, so as to realize the electrical conduction between the image sensor 140 and the external element. The connection terminals 135 may be disposed on the second cross arm 132d, and more specifically, the second cross arm 132d has a side turned (folded) outward away from the camera module 100, and the plurality of connection terminals 135 are disposed on the side at intervals.

The outer end of the elastic cantilever 132 may be fixedly connected to the housing 110, so that the image sensor 140 may be suspended inside the camera module 100. For example, the outer end of the elastic cantilever 132 may be fixed to the outer side surface of the top cover 111 and/or the bottom plate 112 by means of bonding, so that the length (i.e. the suspension distance) of the elastic cantilever 132 can be increased as much as possible, so that the elastic cantilever 132 is more easily elastically deformed.

In addition, through the above arrangement, the whole suspension bracket 130 is easily moved in translation along the X-axis and the Y-axis, and easily rotated around the Z-axis without being easily translated along the Z-axis, and while three-axis anti-shake (X-axis movement, Y-axis movement, and Roll-axis rotation) is achieved, the crosstalk problem in the Auto Focus (AF) direction can be solved, and meanwhile, the suspension wire assembly difficulty problem is also solved.

Alternatively, the external component may be a circuit board to which the connection terminals 135 are connected. For example, the circuit board may be a motherboard of an electronic device. As another example, the circuit board may also be a sub-board of a foldable electronic device.

Alternatively, the connection terminal 135 may be connected to any electronic component such as a circuit board by a plug-in connector, an adhesive or soldering, and the type of the external component and the connection manner of the elastic cantilever 132 and the external component are not particularly limited in this application.

As shown in fig. 5-7, the suspension bracket 130 integrally forms a basin-shaped structure, the elastic cantilever 132 is disposed around the outer side of the movable carrier 131 to form a side wall of the basin-shaped structure, the movable carrier 131 forms a bottom wall of the basin-shaped structure, and the image sensor 140 is located in the basin and is attached to the movable carrier 131. The elastic cantilever 132 is disposed around the optical axis, and the basin opening of the basin structure faces the incident light, and the incident light passes through the elastic cantilever 132 forming a ring structure and then is directed to the image sensor 140 on the inner wall of the movable carrier 131. Through the above setting, the whole structure of the suspension bracket 130 can be more compact, the size of the XY plane can be reduced, the total height of the camera module 100 is not increased, and meanwhile, the camera module 100 has more elastic coefficient allowance (about 3 times), is favorable for reducing the volume of the camera module 100 and accords with the use scene of mobile terminals such as mobile phones.

Further, the two elastic cantilevers 132 include two elastic cantilevers 132 symmetrically distributed at two ends of the movable carrier 131, each elastic cantilever 132 includes a first longitudinal arm 132a and a first transverse arm 132b, the first transverse arms 132b of the two elastic cantilevers 132 are integrally U-shaped and connected with the movable carrier 131 through the first longitudinal arms 132a, and the U-shaped openings of the first transverse arms 132b of the two U-shaped structures formed by the two first transverse arms 132b are oppositely arranged to form the side walls of the basin-shaped structure. With the above arrangement, the balance performance of the suspension bracket 130 can be improved, the anti-shake design can be simplified, and the output control of the driving mechanism 150 is facilitated.

Alternatively, the front ends of the two first cross arms 132b may be fixedly connected by the fixing plate 134, and the front ends of the two first cross arms 132b may be connected to the fixing plate 134 by means of rivets or screws. By the arrangement, the two opposite first cross arms 132b form a complete frame-shaped structure, which is beneficial to improving the structural stability of the suspension bracket 130.

As shown in fig. 5-7, in the embodiment of the present application, the elastic cantilever 132 is an elongated narrow-band structure having a plurality of segments and includes a first trailing arm 132a, a first cross arm 132b, a second trailing arm 132c, and a second cross arm 132d connected in sequence. In other implementations, the resilient cantilever 132 may be other simpler or more complex structures, such as where the resilient cantilever 132 is still an elongated narrow band structure having a plurality of segments, but the resilient cantilever 132 may have more or fewer segments than the embodiments shown in fig. 5-7.

Alternatively, as a possible implementation, the elastic cantilever 132 includes two elastic cantilevers 132, and the two elastic cantilevers 132 are symmetrically distributed at two ends of the movable carrier 131. Each elastic cantilever 132 includes a first longitudinal arm 132a and a first cross arm 132b, where the first cross arm 132b is integrally U-shaped and connected to the mobile carrier 131 through the first longitudinal arm 132a, and the U-shaped openings of the first cross arms 132b of the two elastic cantilevers 132 are disposed opposite to each other to form a side wall of the basin-shaped structure.

That is, the elastic cantilever 132 may include only the first trailing arm 132a and the first cross arm 132b, and not include the aforementioned second trailing arm 132c and second cross arm 132d. The entire suspension bracket 130 may now be suspended within the interior cavity of the housing 110 by the distal end of the first cross arm 132 b.

Alternatively, as a possible implementation manner, the elastic cantilever 132 may be formed by connecting 3, 5 or any other multiple segments, and two adjacent segments may form an included angle with any angle, that is, the following segment may deflect in any direction relative to the preceding segment according to actual requirements.

As shown in fig. 7, the movable carrier 131 has a ring structure, and has a hollow portion 137 in the middle, and the image sensor 140 is carried on the ring structure and covers the hollow portion 137. By providing the hollow portion 137, the weight of the movable carrier 131 can be reduced, and thus the force requirement on the driving mechanism 150 can be reduced, and the situation of insufficient motor thrust can be avoided.

Optionally, a damping body is further disposed between the movable carrier 131 (i.e., the ring structure) and the bottom plate 112, and the damping body can suppress resonance of the image sensor 140.

Alternatively, in other embodiments, the movable carrier 131 may be a complete sheet structure (i.e. not including the hollowed-out portion 137), or the movable carrier 131 may be formed by a plurality of separate sheet structures together, which is not particularly limited in this application.

In the present embodiment, the suspension brackets 130 are formed by bending an integrated sheet structure. Fig. 8 is a schematic view of the structure of the integrated sheet structure constituting the suspension bracket 130 before bending. As shown in fig. 8, the sheet-like structure may be prepared by cutting at this time, and then the suspension brackets 130 may be formed by bending. Through the above arrangement, the integrity and connection stability of the movable carrier 131 and the elastic cantilever 132 can be enhanced, and the overall structure of the suspension bracket 130 is simplified.

Fig. 9 is a cross-sectional view of the integrated sheet structure shown in fig. 8. As shown in fig. 9, the integrated sheet structure includes a reed layer 130a, an insulating layer 130b, and a conductive layer 130c, which are stacked in this order, and a signal line is located in the conductive layer 130 c. That is, the integrated sheet structure forms a reed and signal line integrated part (trace suspension assembly, TSA) at this time, and the reed layer 130a serves as a substrate for laying the signal line.

The reed layer 130a is made of metal (e.g., brass) having a certain elasticity, and can provide a repulsive force when receiving an external force, and the signal line is made of the conductive layer 130c, and a dotted line with a double arrow in fig. 8 indicates a signal line, one end of the signal line is connected to a pin (not shown) disposed on an inner edge of the movable carrier 131, the pin can be electrically connected to the image sensor 140, and the other end of the signal line is connected to a connection terminal 135 disposed on the second cross arm 132d, so that bidirectional conduction of a signal of the image sensor 140 is achieved, and signal transmission is completed.

The insulating layer 130b is used to electrically insulate between the reed layer 130a and the conductive layer 130 c. After the integrated sheet structure is bent, the insulating layer 130b is bent together with the conductive layer 130c (i.e., the signal line), so that the insulating layer 130b may be made of a flexible (having bending characteristics) insulating material, such as polyimide or mylar, or other polymer material.

Optionally, the integrated sheet structure may also include a plurality of conductive layers, and two adjacent conductive layers are provided with insulating layers for electrical isolation design.

That is, the integrated sheet structure may have a plurality of conductive layers and a plurality of insulating layers, and for the formed suspension bracket 130, it also includes a plurality of conductive layers and a plurality of insulating layers. Through the design, wiring design can be conveniently carried out, so that wiring operation is more flexible.

Further, referring to fig. 5 to 8, the suspension bracket 130 further includes a support arm 133 connected to the movable carrier 131, the support arm 133 forming a portion of a sidewall of the tub-like structure, the first trailing arm 132a being connected to the movable carrier 131 through the support arm 133, and a width of the support arm 133 being greater than a width of the first trailing arm 132 a. By the arrangement, the first longitudinal arm 132a is not required to be folded, but the supporting arm 133 with a larger width is folded, and the density of the signal wires on the supporting arm 133 is obviously smaller than that of the signal wires on the first longitudinal arm 132a, so that the damage to the signal wires caused by bending can be reduced as much as possible.

As shown in fig. 9, the outside of the conductive layer 130c is further covered with a protective layer 130d. With the above arrangement, a better insulating protection effect can be achieved for the conductive layer 130c, and at this time, only the connection terminal 135 and the pin can be exposed to the outside of the protection layer 130d to facilitate electrical connection.

In the embodiment of the present application, the driving mechanism 150 moves the suspension bracket 130, so as to further drive the image sensor 140 to move for optical anti-shake. The specific type of the driving mechanism 150 is not limited in this application, and may be, for example, a microelectromechanical motor, a shape memory alloy motor, a voice coil motor, or the like as described above.

As shown in fig. 5 and 6, in the embodiment of the present application, the driving mechanism 150 is a voice coil motor, and includes a magnet 151 and a coil 152 that are used in cooperation with each other, the magnet 151 is fixed on the housing 110, the coil 152 is disposed on the movable carrier 131, and the signal line is also used for supplying power to the coil 152. The image sensor 140 is driven to move through the voice coil motor to realize optical anti-shake, and the image sensor 140 can be driven to do linear type (X-axis anti-shake and Y-axis anti-shake) and limited swing angle (Roll axis anti-shake) anti-shake motions in a narrow space. The mode that this application removed image sensor 140 through voice coil motor, voice coil motor had great thrust to response speed is faster, efficiency is higher, can bring to the user more quick and complete shooting experience. Further, by providing the coil 152 on the movable mount 131, the coil 152 can be supplied with power using the signal line provided on the suspension bracket 130, thereby simplifying the internal structure of the image pickup module 100.

Fig. 10 is a schematic view of the installation structure of the magnet 151. As shown in fig. 5, 6 and 10, the movable carrier 131 has a rectangular ring structure, and 4 sets of coils 152 are distributed on four sides of the rectangular ring structure in a one-to-one correspondence manner and are located on an inner wall of the movable carrier 131.

The magnets 151 are fixed to the inside of the housing 110 by a magnet mounting frame 160, the magnet mounting frame 160 has a rectangular frame-like structure, and four sets of magnets 151 are distributed on four side walls of the magnet mounting frame 160. Each set of coils 152 and each set of magnets 151 includes two magnets 151, the magnets 151 are in one-to-one correspondence with the coils 152 and are arranged in parallel and opposite to each other.

The driving force can be provided to the magnet 151 by switching on the direct current to the coil 152, the force magnitude and direction of the magnet 151 covered by the magnetic field can be controlled by changing the direct current magnitude and direction of the coil 152, that is, the force magnitude and direction of the coil 152 are controlled, the coil 152 provides the driving force to the suspension bracket 130 to drive the suspension bracket 130 to move, and the suspension bracket 130 further drives the image sensor 140 to move, so that the optical anti-shake function is realized.

Alternatively, as shown in fig. 10, positioning columns 161 are protruding from four corners of the side surface of the magnet mounting frame 160 facing the movable carrier 131, and limiting cavities 136 are correspondingly disposed on four corners of the movable carrier 131, and the four positioning columns 161 are correspondingly inserted into the four limiting cavities 136, so that the limiting cavities 136 and the positioning columns 161 can realize mutual limiting, and further the displacement of the movable carrier 131 can be limited in a limited and controllable space.

The end of the positioning column 161 is fixedly connected with the bottom plate 112, the magnet mounting frame 160 is fixedly connected with the top cover 111, and the suspension bracket 130 is fixedly suspended in the housing 110, so that the several components form a modularized integral structure, the modularized integral structure can be assembled in advance, and when the camera module 100 is assembled, the lens 120 is fixedly mounted (e.g. adhered) in the housing 110 through the through hole formed in the top cover 111, so that the assembly process is simplified, and the production efficiency is improved.

Optionally, in order to achieve better control, the camera module 100 provided in this embodiment of the present application further includes a position detection sensor (not shown in the figure), where the position detection sensor is configured to detect a real-time position of the mobile carrier 131 (i.e., the image sensor 140), and send a detection signal to the control unit, and the control unit controls the voice coil motor (coil 152) according to the detection signal.

Alternatively, the position detection sensor may be a hall (hall) sensor or a magneto-resistive (magnetic resistance, MR)) sensor.

Fig. 11 is a schematic overall structure of another example of the camera module 100 according to the embodiment of the present application. Fig. 12 is an exploded view of the camera module 100 shown in fig. 11. Fig. 13 is a schematic view of the entire structure of the suspension bracket 130 of fig. 12.

As shown in fig. 11 to 13, in contrast to the embodiment shown in fig. 4 to 10, in this embodiment, the image capturing module 100 further includes a reflecting element 170, and the reflecting element 170 is configured to reflect incident light and then inject the reflected light into the image sensor 140. The light reflected by the reflecting element 170 may be refracted by the lens and then captured by the image sensor 140. That is, the camera module 100 provided in the embodiment of the present application may be a periscope camera module, and for a conventional camera module, the periscope camera module can meet the requirement of high-power optical zooming, so that long-distance zooming is possible, and the development trend of light and thin smart phone can be adapted.

For example, the reflecting element 170 may be a triangular prism or a mirror.

Further, as shown in fig. 12 and 13, the first cross arm 132b of the elastic cantilever 132 is further provided with a notch 138, and by providing the notch 138, the width of the first cross arm 132b can be reduced, the elastic deformation amount of the elastic cantilever 132 is improved, and providing the notch 138 is also beneficial to reducing the weight of the whole suspension bracket 130, so that the load of the driving mechanism 150 can be reduced.

On the other hand, the embodiment of the present application further provides an electronic device 1000, and fig. 14 is a schematic structural diagram of the electronic device 1000 provided in the embodiment of the present application, where part (a) in fig. 14 is a front view of the electronic device 1000, and part (b) in fig. 14 is a back view of the electronic device 1000. Fig. 15 is a control schematic diagram of the electronic device 1000 provided in the present application. As shown in fig. 14 and 15, the electronic device 1000 includes the camera module 100 provided in any of the foregoing embodiments.

Further, as shown in fig. 15, the electronic device 1000 further comprises a gyroscope and a control unit. The gyroscope is configured to collect jitter information of the electronic device 1000, and send the jitter information to the control unit, where the control unit is configured to control the coil 152 according to the jitter information, for example, adjust the magnitude and/or direction of the current on the coil 152.

Further, as shown in fig. 15, the position detection sensor of the camera module 100 detects the position information of the suspension bracket 130 (i.e., the movable carrier 131), and sends the position information as control feedback to the control unit, so that the control unit can realize closed-loop control of the voice coil motor.

As shown in fig. 14, the electronic device 1000 further includes a casing 200 and a display screen 300, the gyroscope and the control unit are disposed in the casing 200, the display screen 300 and the camera module 100 are mounted on the casing 200, and the display screen 300 is used for displaying images shot by the camera module 100.

Alternatively, the cabinet 200 may be a metal housing, such as a metal of magnesium alloy, stainless steel, or the like. In addition, a plastic case, a glass case, a ceramic case, etc. may be used, but is not limited thereto.

Alternatively, the display screen 300 may be a light emitting diode (light emitting diode, LED) display screen, a liquid crystal (liquid crystal display, LCD) display screen, an organic light-emitting diode (OLED) display screen, or the like, but is not limited thereto.

The display screen 300 may also be a flexible screen (folding screen) having a bending property, in which case the electronic device 1000 may be a foldable terminal device. The flexible screen may be, for example, an OLED display screen, an active-matrixorganic light-emitting diode (AMOLED) display screen, a mini-led (mini organic light-emitting diode) display screen, a micro-led (micro organic light-emitting diode) display screen, a micro-organic led (micro organic light-emitting diode) display screen, a quantum dot led (quantum dot light emitting diodes, QLED) display screen, or the like, but is not limited thereto.

Optionally, other devices may be included in the casing 200, such as, but not limited to, a battery, a flash, a fingerprint recognition module, a headset, a circuit board, a sensor, etc.

Alternatively, the electronic device 1000 may be a terminal device with a camera or photographing function, such as a mobile phone, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart robot, a vehicle-mounted monitor, or other forms of devices with a camera or photographing function.

Because the electronic device 1000 employs the camera module 100 provided in the foregoing embodiment, the electronic device 1000 also has the technical effects corresponding to the camera module 100, which is not described herein.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A camera module, comprising:

a housing (110) having an interior cavity;

the suspension bracket (130) comprises a movable carrier (131) and an elastic cantilever (132) which are connected with each other, wherein an image sensor (140) is borne on the movable carrier (131), the elastic cantilever (132) suspends the movable carrier (131) in the inner cavity, the movable carrier (131) and the elastic cantilever (132) are of a lamellar structure, signal wires are respectively arranged on the movable carrier (131) and the elastic cantilever (132), and the image sensor (140) is electrically connected with an external element through the signal wires;

and the driving mechanism (150) is used for driving the suspension bracket (130) to move so as to drive the image sensor (140) to rotate or translate on a plane perpendicular to the optical axis.

2. The camera module of claim 1, wherein the sheet-like structure is a metal reed, the signal line is disposed on the metal reed, and an insulating layer is disposed between the signal line and the metal reed.

3. The camera module of claim 1 or 2, wherein the resilient cantilever (132) comprises an elongated narrow band structure having a plurality of segments, an included angle being formed between adjacent ones of the segments.

4. A camera module according to claim 3, wherein one end of the elastic cantilever (132) is connected to the movable carrier (131), and the other end extends from the interior of the cavity to the outside of the housing (110) and is provided with a connection terminal (135), the connection terminal (135) being for electrical connection with the external element.

5. The camera module according to claim 4, wherein the suspension bracket (130) integrally forms a basin-shaped structure, the elastic cantilever (132) is circumferentially arranged along the outer side of the movable carrier (131) to form a side wall of the basin-shaped structure, the movable carrier (131) forms a bottom wall of the basin-shaped structure, and the image sensor (140) is located in the basin and is attached to the movable carrier (131).

6. The camera module according to claim 5, wherein the elastic cantilever (132) comprises two elastic cantilevers (132), and the two elastic cantilevers (132) are symmetrically distributed at two ends of the movable carrier (131); each elastic cantilever (132) comprises a first longitudinal arm (132 a) and a first transverse arm (132 b), the first transverse arm (132 b) is integrally U-shaped and is connected with the movable carrying seat (131) through the first longitudinal arm (132 a), and U-shaped openings of the first transverse arms (132 b) of the two elastic cantilevers (132) are oppositely arranged to form side walls of the basin-shaped structure.

7. The camera module according to claim 6, wherein the elastic cantilever (132) further includes a second longitudinal arm (132 c) and a second transverse arm (132 d), the first transverse arm (132 b), the second longitudinal arm (132 c) and the second transverse arm (132 d) are sequentially connected, and the connection terminal (135) is disposed on the second transverse arm (132 d).

8. The camera module according to any one of claims 1 to 7, wherein the movable carrier (131) has a ring structure, a hollow portion (137) is provided in the middle, and the image sensor (140) is supported on the ring structure and covers the hollow portion (137).

9. Camera module according to any of claims 1-8, characterized in that the suspension bracket (130) is formed by bending an integrated sheet structure.

10. The imaging module according to claim 9, wherein the integrated sheet structure includes a reed layer (130 a), an insulating layer (130 b), and a conductive layer (130 c) stacked in this order, and the signal line is located in the conductive layer (130 c).

11. The camera module according to claim 10, wherein the outer side of the conductive layer (130 c) is further covered with a protective layer (130 d).

12. The camera module according to any one of claims 1-11, wherein the driving mechanism (150) includes a magnet (151) and a coil (152) that are used in cooperation with each other, the magnet (151) is fixed on the housing (110), the coil (152) is disposed on the movable carrier (131), and the signal line is further used for supplying power to the coil (152).

13. The camera module of claim 12, further comprising a magnet mounting frame (160) disposed within the housing (110), the magnet (151) being secured within the housing (110) by the magnet mounting frame (160).

14. The camera module of any of claims 1-13, wherein the camera module further comprises:

and the lens (120) is used for refracting the incident light rays and then injecting the incident light rays into the image sensor (140).

15. The camera module of any of claims 1-14, wherein the camera module further comprises:

and the reflecting element (170) is used for reflecting the incident light rays and then injecting the incident light rays into the image sensor (140).

16. The camera module of any of claims 1-15, wherein the external component is a circuit board.

17. An electronic device comprising the camera module of any one of claims 1-16.