CN115473976A

CN115473976A - Lens assembly, camera module and assembling method thereof

Info

Publication number: CN115473976A
Application number: CN202110654083.6A
Authority: CN
Inventors: 洪超; 王斌; 阙嘉耀; 方银丽; 谢义; 严春琦; 王阳
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-12-13

Abstract

The invention discloses a lens assembly, a camera module and an assembling method thereof. The camera module comprises a photosensitive component and a lens component. The lens assembly is correspondingly arranged on a photosensitive path of the photosensitive assembly and comprises a driving assembly with a space, an optical lens and a suspension mechanism. The suspension mechanism suspends the optical lens in the space of the driving mechanism in a resettable manner, and comprises a first elastic sheet and a second elastic sheet which are arranged in the driving assembly at intervals along the optical axis direction, wherein a first connecting hole of the first elastic sheet is matched with an incident light end of the optical lens to be sleeved on the lens barrel of the optical lens, a second connecting hole of the second elastic sheet is matched with an emergent light end of the optical lens to be sleeved on the lens barrel of the optical lens, and the size of the first connecting hole of the first elastic sheet is smaller than that of the second connecting hole of the second elastic sheet.

Description

Lens assembly, camera module and assembling method thereof

Technical Field

The invention relates to the technical field of lens modules, in particular to a lens assembly, a camera module and an assembling method thereof.

Background

In recent years, electronic products, smart devices, and the like are increasingly being developed toward miniaturization and high performance, and this development trend of electronic products and smart devices places more stringent requirements on the size and imaging capability of a camera module, which is one of standard configurations of electronic products and smart devices. This also causes the electronic product and smart device industry to be reluctant to pursue the compactness and function integration of the camera module, and the auto-focusing, zooming and anti-shake functions are integrated into the camera module in this kind of development wave, so as to realize the auto-focusing, zooming and anti-shake functions of the camera module.

At present, an existing camera module generally includes a photosensitive component, an optical lens, a voice coil motor and other important components, where the voice coil motor is used as a driving element of the camera module and is used for driving the optical lens in the camera module to move so as to achieve functions of auto-focusing, zooming, anti-shake and the like of the camera module. In fact, in the conventional industrial layout, the assembly process of the camera module is completed in the module factory, and the voice coil motor is provided in the form of a module by the module factory. That is to say, the components of the voice coil motor, such as the motor base, the lens carrier, the spring, the coil magnet, and the like, are assembled in a motor factory so as to have a modular structure, then the optical lens is mounted on the lens carrier of the voice coil motor in a module factory, and then the motor base of the voice coil motor is correspondingly mounted on the photosensitive assembly, so that the voice coil motor as a whole participates in the assembly process of the camera module.

However, such an assembly scheme has a number of drawbacks. On the one hand, along with the development of mobile electronic equipment, the module of making a video recording is more and more towards the direction of miniaturization, frivolousization, and this is more and more high to the size and the structural requirement of the module of making a video recording, but because voice coil motor exists in the module of making a video recording with a complete modular form, it is the variable that can hardly change in the size and the structural design of the module of making a video recording, so few module factories try to optimize the structure and the dimensional design of the module of making a video recording from the technical thinking of optimizing motor structure and integrated module assembly technology. On the other hand, the motor is used as a whole to participate in the assembly scheme of the camera module, so that the assembly process of the camera module is increased, and the assembly efficiency of the camera module is further reduced. For example, in the existing assembly scheme of the camera module, the motor needs to be cleaned, baked, cured and corrected by AA for many times, which reduces the assembly efficiency of the camera module and increases the assembly cost. In fact, just because a motor factory needs to package the vcm as a standard module, the vcm usually has a relatively closed structure, and once dust or dirt enters the inside of the vcm, the dust and dirt are difficult to clean, which seriously affects the overall cleanliness of the camera module. That is to say, as the voice coil motor of standard module, its inside clearance degree of difficulty is very high, and its inside dust and dirty also very easily pollute photosensitive assembly, and then influence the imaging quality of the module of making a video recording.

Disclosure of Invention

An advantage of the present invention is to provide a lens assembly, a camera module and an assembling method thereof, which can optimize the structural configuration of the module to eliminate a lens carrier in a motor, thereby improving the assembling efficiency of the camera module.

Another advantage of the present invention is to provide a lens assembly, a camera module and an assembling method thereof, wherein in an embodiment of the present invention, the camera module can integrate the assembly of a motor into the assembly process of the camera module, which is helpful for improving the integration of the camera module and reducing the module size.

Another advantage of the present invention is to provide a lens assembly, a camera module and an assembling method thereof, wherein in an embodiment of the present invention, the camera module can directly suspend an optical lens in a space of a driving assembly through a suspension mechanism, so as to omit a lens carrier, thereby not only reducing material cost of the camera module and reducing assembly tolerance between the optical lens and the lens carrier, but also eliminating a height fixing process in a conventional packaging process and reducing a height of the camera module.

Another advantage of the present invention is to provide a lens assembly, a camera module and an assembling method thereof, wherein, in an embodiment of the present invention, the suspension mechanism of the camera module can reserve a sufficient space for the movement of the optical lens, so that a large movement stroke of the optical lens is ensured, and at the same time, the driving resistance of the optical lens is reduced, and the focusing or zooming sensitivity of the camera module is improved.

Another advantage of the present invention is to provide a lens assembly and a camera module and an assembling method thereof, wherein, in an embodiment of the present invention, the camera module can perform a non-standard process on a conventional standard modular motor to remove useless parts or replaceable parts in the motor, so that the driving assembly and the optical lens can be integrally assembled together in a module factory, which not only can reduce the dirty effect caused by dust, but also is beneficial to the structural design and size optimization of the camera module.

Another advantage of the present invention is to provide a lens assembly and a camera module and a method for assembling the same, wherein a complex structure or algorithm is not required in the present invention in order to achieve the above advantages. The present invention thus successfully and effectively provides a solution that not only provides a simple lens assembly and camera module and method of assembly thereof, but also increases the practicality and reliability of the lens assembly and camera module and method of assembly thereof.

To achieve at least one of the above advantages or other advantages and objects, the present invention provides a camera module, including:

a photosensitive assembly; and

a lens assembly, wherein the lens assembly is correspondingly disposed on a photosensitive path of the photosensitive assembly, and the lens assembly comprises:

a drive assembly, wherein the drive assembly has a space;

an optical lens, wherein the optical lens is arranged in the space of the driving component in a driving way, and the optical lens comprises a lens barrel and a lens group assembled in the lens barrel; and the suspension mechanism can be used for suspending the optical lens in the space of the driving mechanism in a resettable manner, and comprises a first elastic sheet and a second elastic sheet which are arranged on the driving assembly at intervals along the optical axis direction, wherein a first sleeving hole of the first elastic sheet is matched with an incident light end of the optical lens so as to be sleeved on the lens barrel of the optical lens, a second sleeving hole of the second elastic sheet is matched with an emergent light end of the optical lens so as to be sleeved on the lens barrel of the optical lens, and the size of the first sleeving hole of the first elastic sheet is smaller than that of the second sleeving hole of the second elastic sheet.

In some embodiments of the invention, the driving assembly includes a driving base frame defining the space, and a coil and a magnetic element which are used for driving the optical lens and are oppositely disposed, wherein the first elastic sheet has at least one first outer contour portion fixedly connected to the driving base frame, at least one first inner contour portion defining the first coupling hole, and one or more first deformation portions integrally connected between the first outer contour portion and the first inner contour portion, and the first inner contour portion of the first elastic sheet is fixedly connected to an upper portion of the lens barrel.

In some embodiments of the invention, the second elastic piece has one or more second outer contours fixedly connected to the driving base frame, one or more second inner contours defining the second mating holes, and one or more second deformation portions integrally connected between the second outer contours and the second inner contours, wherein the second inner contours of the second elastic piece are fixedly connected to the lower portion of the lens barrel.

In some embodiments of the present invention, the first elastic sheet and/or the second elastic sheet has a sheet-like structure, and the first deformation portion of the first elastic sheet and/or the second deformation portion of the second elastic sheet extend in a bending manner.

In some embodiments of the invention, the drive base frame of the drive assembly comprises a base and at least two brackets integrally extending upward from the base, wherein the first resilient tab and the second resilient tab of the suspension mechanism are mounted to the brackets of the drive base frame at intervals.

In some embodiments of the invention, the first profile of the first resilient tab and/or the second profile of the second resilient tab are bonded or heat staked to the bracket of the drive base frame.

In some embodiments of the present invention, the first profile of the first resilient plate and/or the second profile of the second resilient plate are integrally formed on the bracket of the driving base frame by an insert molding process.

In some embodiments of the present invention, the coil is disposed at the lens barrel of the optical lens, and the magnetic element is correspondingly disposed at the driving base frame.

In some embodiments of the present invention, the first elastic sheet and/or the second elastic sheet have an integral structure or a split structure, respectively.

In some embodiments of the present invention, the photosensitive assembly includes a circuit board, a photosensitive chip electrically connected to the circuit board, a bracket formed on the circuit board, and a filter element mounted on the bracket, wherein the driving base frame in the lens assembly is supportedly disposed on the bracket, and the lens group in the lens assembly is correspondingly held on a photosensitive path of the photosensitive chip.

According to another aspect of the present invention, the present invention further provides an assembling method of a camera module, including the steps of:

s100: providing an optical lens, wherein the optical lens comprises a lens barrel and a lens group assembled in the lens barrel;

s200: the optical lens is suspended in the space of the driving assembly in a resettable manner through the suspension mechanism to form the lens assembly, wherein the suspension mechanism comprises a first elastic sheet and a second elastic sheet which are arranged in the driving assembly at intervals along the optical axis direction, a first sleeving hole of the first elastic sheet is matched with an incident end of the optical lens to be sleeved on the lens cone of the optical lens, a second sleeving hole of the second elastic sheet is matched with an emergent end of the optical lens to be sleeved on the lens cone of the optical lens, and the size of the first sleeving hole of the first elastic sheet is smaller than that of the second sleeving hole of the second elastic sheet; and

s300: the lens component is correspondingly arranged on the photosensitive path of the photosensitive component to form a camera module.

In some embodiments of the present invention, the step S200 includes the steps of:

integrally forming the second outline part of the second elastic sheet on a driving base frame of the driving assembly through an insert injection molding process;

after the optical lens is installed in the space of the driving assembly, the second inner contour part of the second elastic sheet is bonded or hot riveted on the lower part of the lens cone of the optical lens;

respectively bonding or hot riveting a first inner contour part and a first outer contour part of the first elastic sheet to the upper part of the lens cone of the optical lens and the bracket of the driving base frame of the driving assembly; and

the coil and the magnetic element of the driving component are respectively oppositely arranged on the lens cone of the optical lens and the driving base frame of the driving component to form the lens component.

fixedly connecting the first outline part of the first elastic sheet to a bracket of a driving base frame of the driving assembly;

after the optical lens is inversely installed in the space of the driving assembly, the first inner contour part of the first elastic sheet is adhered or hot riveted to the upper part of the lens cone of the optical lens;

the coil and the magnetic element of the driving component are respectively oppositely arranged on the lens cone of the optical lens and the driving pedestal of the driving component; and

and respectively bonding or hot riveting a second inner contour part and a second outer contour part of the second elastic sheet to the lower part of the lens cone of the optical lens and the driving base frame to form the lens assembly.

integrally forming a first outline part of the first elastic sheet and a second outline part of the second elastic sheet on a bracket of a driving base frame of the driving assembly through an insert injection molding process;

the optical lens is inversely arranged in the space of the driving component through the second sleeving connection hole of the second elastic sheet;

respectively bonding or hot riveting the first inner contour part of the first elastic sheet and the second inner contour part of the second elastic sheet to the upper part and the lower part of the lens cone of the optical lens; and

In some embodiments of the present invention, in the step S200, the first profile portion of the first elastic piece is supportingly connected by a supporting pillar before the insert molding process, so that the supporting pillar is buried in the bracket of the driving base frame after the insert molding process is completed.

In some embodiments of the invention, in the step S200, when the first elastic piece or the second elastic piece has a split structure, before the first elastic piece or the second elastic piece is mounted, two half elastic pieces of the first elastic piece or the second elastic piece are integrally connected through a bridge, and after the first elastic piece or the second elastic piece is mounted, the bridge is cut off to be sleeved on the lens barrel of the optical lens.

In some embodiments of the invention, in the step S200, the two electrical connection points of the coil are electrically connected to at least two connection terminals of the driving assembly through the two half elastic pieces of the first elastic piece or the second elastic piece, respectively.

In some embodiments of the invention, in the step S200, when the first elastic piece and the second elastic piece both have an integrated structure, the two electrical connection points of the coil are electrically connected to at least two connection terminals of the driving assembly through the first elastic piece and the second elastic piece, respectively.

In some embodiments of the present invention, in the step S200, the optical lens is a trimming lens, and the coil of the driving assembly is correspondingly disposed at a trimming portion or a round portion of the trimming lens.

According to another aspect of the present invention, the present invention also provides a lens assembly including:

a drive assembly, wherein the drive assembly has a space;

an optical lens, wherein the optical lens is drivably disposed in the space of the driving assembly, and the optical lens includes a lens barrel and a lens group assembled within the lens barrel; and

the suspension mechanism is used for suspending the optical lens in the space of the driving mechanism in a resettable manner, and comprises a first elastic sheet and a second elastic sheet which are arranged on the driving assembly at intervals along the optical axis direction, wherein a first sleeving hole of the first elastic sheet is matched with a light inlet end of the optical lens so as to be sleeved on the lens barrel of the optical lens, a second sleeving hole of the second elastic sheet is matched with a light outlet end of the optical lens so as to be sleeved on the lens barrel of the optical lens, and the size of the first sleeving hole of the first elastic sheet is smaller than that of the second sleeving hole of the second elastic sheet.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.

Drawings

Fig. 1 is a schematic perspective view of a camera module according to an embodiment of the invention.

Fig. 2 shows a schematic cross-sectional view of the camera module according to the above-described embodiment of the present invention.

Fig. 3 shows an exploded view of the camera module according to the above embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the lens assembly of the camera module according to the above embodiment of the invention.

Fig. 5 shows an exploded view of the lens assembly of the camera module according to the above embodiment of the present invention.

Fig. 6 shows a first modified implementation of the suspension mechanism of the lens assembly according to the above-described embodiment of the present invention.

Fig. 7 shows a second modified implementation of the suspension mechanism of the lens assembly according to the above-described embodiment of the present invention.

Fig. 8 shows a third modified implementation of the suspension mechanism of the lens assembly according to the above-described embodiment of the present invention.

Fig. 9 is a flowchart illustrating an assembling method of a camera module according to an embodiment of the invention.

Fig. 10A and 10B respectively show a first example of an assembling step of the lens assembly in the assembling method of the camera module according to the above-described embodiment of the present invention.

Fig. 11A and 11B respectively show a second example of the assembly steps of the lens assembly in the assembly method of the camera module according to the above-described embodiment of the present invention.

Fig. 12A to 12C respectively show a third example of assembling steps of the lens assembly in the assembling method of the camera module according to the above-described embodiment of the present invention.

Fig. 13A and 13B respectively show a modified example of the optical lens of the lens assembly according to the above-described embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

In the present invention, the terms "a" and "an" in the claims and the description should be understood as meaning "one or more", that is, one element may be one in number in one embodiment, and the element may be more than one in number in another embodiment. The terms "a" and "an" should not be construed as limiting the number unless the number of such elements is explicitly recited as one in the present disclosure, but rather the terms "a" and "an" should not be construed as being limited to only one of the number.

In the description of the present invention, it is to 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 relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Summary of the application

As described in the background, with the development of science and technology, the image capturing module is increasingly developed toward large pixels, large apertures, light weight, thinness, and miniaturization, which has higher requirements on the size and structure of the image capturing module. In a conventional camera module packaging process, a module factory generally acquires parts such as a motor, a lens and a photosensitive chip respectively and packages the parts, so that a complete camera module is obtained. Because the motor, the lens and the photosensitive chip are provided by different suppliers respectively, and the respective technical fields are different, the required production environments are different, and the requirements on the products are inconsistent, the module factory needs to detect the quality of the parts respectively after obtaining the parts, and needs to make the parts cooperate with each other in the packaging process to reduce the interference between the parts, that is, the traditional camera module packaging process is relatively complex, the chain length of the related upstream industry is long, and the cost of the camera module is increased due to redundant assembly processes and the parts.

In particular, the motor is relatively complex as a component of a camera module, but the manufacturing environment requires relatively low parts, and the dust-free grade of the manufacturing shop is relatively low, i.e. the shop environment contains much more dust than the manufacturing shop of the lens or the photosensitive chip. Therefore, when a module factory adopts a traditional packaging process, and a motor which is assembled and assembled directly from the motor factory is packaged for the camera module, dust carried by the motor can cause eye pollution of the camera module, even if the motor is cleaned, the dust can still be hidden inside the motor due to the complexity of the internal structure of the motor, and in the subsequent assembly process or the use process of the camera module, the dust can escape from the inside of the motor and fall on a lens of a lens or a photosensitive surface of a photosensitive chip, so that black spots exist in an image formed by the camera module, and the imaging quality of the camera module is influenced. In other words, the voice coil motor in the existing camera module exists as a complete module, which not only determines the variables that are almost unchangeable in the size and structural design of the camera module, resulting in that almost no module factory will try to optimize the structure and dimensional design of the camera module from the technical idea of optimizing the motor structure and assembly process, but also needs to perform multiple times of cleaning, baking, curing and AA correction on the modular motor during the module assembly process, resulting in the reduction of the assembly efficiency of the camera module, but also increases the assembly cost.

In addition, as mobile electronic devices put forward more and more strict requirements on the high power zoom function and the imaging quality of the camera module, the number of lenses in the optical lens is more and more, and the weight of the optical lens is also heavier, which causes the driving sensitivity of the voice coil motor to the optical lens to be worse and worse, which causes the delay of the auto-focusing and the high power zoom of the camera module, and affects the user experience. In order to solve this problem, most module factories have to select motors with larger driving force, but increasing the driving force of the motors not only means that the price of the motors is more expensive, but also increases the volume and weight of the motors, which is not favorable for the development of the camera module. Therefore, an optimized camera module structure design scheme and an optimized camera module assembly scheme are needed.

Specifically, the technical idea of the present application is to perform non-standard processing on a conventional standard modular motor to remove useless or replaceable components in the motor, so that the driving assembly and the optical lens can be integrally assembled together in a module factory, which not only can reduce the dirty effect caused by dust, but also is beneficial to the structural design and size optimization of the camera module. More specifically, the inventors of the present application tried to remove the lens carrier in the motor module to obtain a carrier-less motor, and the carrier-less motor was involved in the assembly scheme of the camera module as a non-standard module, i.e. directly mounting the optical lens to the carrier-less motor to form a highly integrated lens assembly, which not only reduces the material cost of the camera module and the assembly tolerance between the optical lens and the lens carrier, but also eliminates the height fixing process in the conventional packaging process and reduces the height of the camera module. Therefore, the driving load of the motor can be reduced by omitting the lens carrier, so that the camera module does not need to select the motor with larger driving force, and the sensitivity of the camera module in the automatic focusing and high-power zooming processes can be improved. Meanwhile, the overall weight and size of the finally assembled camera module can be reduced, and the motor is convenient to clean and the assembly efficiency of the camera module is optimized.

Based on this, this application provides a module of making a video recording by integrating assembly process preparation forms, it include the sensitization subassembly with by set up correspondingly in the lens subassembly in sensitization route of sensitization subassembly, wherein the lens subassembly includes: a drive assembly having a space; an optical lens drivably disposed in the space of the driving assembly, and the optical lens includes a lens barrel and a lens group assembled inside the lens barrel; and a suspension structure for suspending the optical lens in the space of the driving assembly in a resettable manner, wherein the suspension structure comprises a first elastic sheet and a second elastic sheet which are arranged in the driving assembly at intervals along the optical axis direction, a first coupling hole of the first elastic sheet is matched with an incident end of the optical lens to be coupled with the lens barrel of the optical lens, a second coupling hole of the second elastic sheet is matched with an emergent end of the optical lens to be coupled with the lens barrel of the optical lens, and the size of the second coupling hole of the second elastic sheet is larger than that of the first coupling hole of the first elastic sheet.

Based on this, this application still provides the manufacturing approach of a camera module, and it includes the following step: providing an optical lens, wherein the optical lens comprises a lens barrel and a lens group assembled in the lens barrel; the optical lens is repositionably suspended in a space of a driving assembly through a suspension mechanism to form a lens assembly, wherein the suspension mechanism comprises a first elastic sheet and a second elastic sheet which are arranged in the driving assembly at intervals along an optical axis direction, a first sleeving hole of the first elastic sheet is matched with an incident end of the optical lens to be sleeved on the lens barrel of the optical lens, a second sleeving hole of the second elastic sheet is matched with an emergent end of the optical lens to be sleeved on the lens barrel of the optical lens, and the size of the second sleeving hole of the second elastic sheet is larger than that of the first sleeving hole of the first elastic sheet; and correspondingly setting the lens assembly on a photosensitive path of the photosensitive assembly to form the camera module.

Illustrative embodiments

Referring to fig. 1 to 5 of the drawings of the present specification, an embodiment of the present invention provides a camera module 1, where the camera module 1 may include a lens assembly 10 and a photosensitive assembly 20, where the lens assembly 10 is correspondingly disposed on a photosensitive path of the photosensitive assembly 20, so that external light firstly passes through the lens assembly 10 and then is received by the photosensitive assembly 20 for imaging. Specifically, the lens assembly 10 includes a driving assembly 11 having a space 110, an optical lens 12 drivably disposed in the space 110 of the driving assembly 11, and a suspension structure 13 repositionably suspending the optical lens 12 from the space 110 of the driving assembly 11. The optical lens 12 includes a lens barrel 121 and a lens group 122 assembled in the lens barrel 121. The suspension mechanism 13 includes a first elastic piece 131 and a second elastic piece 132 disposed at an interval along the optical axis direction in the driving assembly 11, wherein a first coupling hole 1310 of the first elastic piece 131 is adapted to the light-in end 1201 of the optical lens 12 to couple to the lens barrel 121 of the optical lens 12, and a second coupling hole 1320 of the second elastic piece 132 is adapted to the light-out end 1202 of the optical lens 12 to couple to the lens barrel 121 of the optical lens 12, wherein the size of the second coupling hole 1320 of the second elastic piece 132 is larger than the size of the first coupling hole 1310 of the first elastic piece 131.

It should be noted that, since the outer contour of the lens barrel 121 of the optical lens assembly 12 generally matches the size of the lens group 122 assembled therein, so that the size of the light-entering end 1201 of the optical lens assembly 12 is smaller than the size of the light-exiting end 1202 of the optical lens assembly 12, the first coupling hole 1310 of the first elastic sheet 131 in the suspension mechanism 13 of the lens assembly 10 of the present application is smaller than the second coupling hole 1320 of the second elastic sheet 132, so as to be directly fixed to the lens barrel 121 of the optical lens assembly 12, which is helpful to improve the structural integrity of the lens assembly 10 and reduce the overall weight and size of the camera module 1. In other words, the driving component 11 and the suspension mechanism 13 in the camera module 1 of the present application are equivalent to a carrier-free motor, i.e. the lens component 10 of the camera module 1 omits a lens carrier in a conventional motor, and the optical lens 12 is directly mounted on the suspension mechanism 13 during the module assembling process, so as to optimize the assembling efficiency of the camera module and reduce the size of the camera module.

Illustratively, as shown in fig. 2 and 5, the driving assembly 11 of the lens assembly 10 may include a driving base 111 defining the space 110 and a coil 112 and a magnetic element 113 oppositely disposed for driving the optical lens 12. The first elastic piece 131 of the suspension mechanism 13 has a first outer contour 1311 fixed to the driving base frame 111, a first inner contour 1312 defining the first coupling hole 1310, and a first deformation 1313 integrally connected between the first outer contour 1311 and the first inner contour 1312, wherein the first inner contour 1312 of the first elastic piece 131 is fixedly connected to an upper portion of the lens barrel 121 of the optical lens 12, and the first deformation 1313 of the first elastic piece 131 extends inward from the first outer contour 1311 to protrude into the space 110 of the driving base frame 111, so that the first inner contour 1311 of the first elastic piece 131 is suspendedly disposed in the space 110 of the driving assembly 11. It is understood that the first inner profile 1312 of the first elastic sheet 131 may be fixedly attached to the lens barrel 121 by means of, but not limited to, such as adhesion or hot riveting.

In this way, the first inner profile 1311 fixed to the first elastic sheet 131 can hold the optical lens 12 in the space 110 of the driving assembly 11 in a suspended manner, so as to reserve a certain moving space for the optical lens 12 and provide a restoring force by using the deformation of the first deformation 1313 of the first elastic sheet 131. In other words, when an electromagnetic force is generated between the coil 112 and the magnetic element 113, the optical lens 12 is driven to move, and the first deformation portion 1313 of the first elastic sheet 131 is elastically deformed to accumulate an elastic force; when the electromagnetic force between the coil 112 and the magnetic element 113 is removed, the first deformation portion 1313 of the first elastic sheet 131 releases the elastic force, so that the optical lens 12 is restored to the original position.

Accordingly, as shown in fig. 2 and 5, the second resilient tab 132 of the suspension mechanism 13 has a second outer contour 1321 fixed to the driving base frame 111, a second inner contour 1322 defining the second docking hole 1320, and a second deformation 1323 integrally connected between the second outer contour 1321 and the second inner contour 1322, wherein the second inner contour 1322 of the second resilient tab 132 is fixedly connected to a lower portion of the lens barrel 121 of the optical lens 12, and the second deformation 1323 of the second resilient tab 132 extends inward from the second outer contour 1321 to protrude into the space 110 of the driving base frame 111, so that the second inner contour 1321 of the second resilient tab 132 is suspendedly disposed in the space 110 of the driving assembly 11. It is understood that the second inner profile 1322 of the second elastic sheet 132 may be fixedly attached to the lens barrel 121 by, but not limited to, means such as adhesion or hot riveting. In addition, the first elastic sheet 131 and the second elastic sheet 132 of the suspension mechanism 13 are respectively fixed to the upper portion and the lower portion of the lens barrel 121, so as to support and limit the lens barrel 121 of the optical lens 12 up and down, which helps to improve the structural stability of the lens assembly 10, so that the optical lens 12 is stably suspended in the space 110 of the driving assembly 11, and thus the optical lens 12 is stably maintained in the photosensitive path of the photosensitive assembly 20.

In other words, in order to fit the shape of the optical lens 12 with a small top and a large bottom, that is, the size of the light-entering end 1201 of the optical lens 12 is smaller than the size of the light-exiting end 1202 of the optical lens 12, the first coupling hole 1310 of the first elastic sheet 131 in the camera module 1 of the present application has a smaller aperture to fit the light-entering end 1201 of the optical lens 12, and the second coupling hole 1320 of the second elastic sheet 132 has a larger aperture to fit the light-exiting end 1202 of the optical lens 12, so as to stably dispose the optical lens 12 between the first elastic sheet 131 and the second elastic sheet 132, so that the optical lens 12 is kept in the center, and the optical lens 12 can be restored to the original position by the elastic force of the first elastic sheet 131 and the second elastic sheet 132 after the optical lens 12 is moved.

In the above example of the present application, the entirety of the first elastic sheet 131 of the suspension mechanism 13 is a sheet-like structure, and the first deformation portion 1313 of the first elastic sheet 131 extends from the first outer contour 1311 to the first inner contour 1312 in a bending manner, so as to reserve a sufficient space for the movement of the optical lens 12, so that a large movement stroke of the optical lens 12 is ensured, and at the same time, the driving resistance of the optical lens 12 is reduced, and the focusing or zooming sensitivity of the camera module 1 is improved. It can be understood that, when the length of the first deformation portion 1313 is longer, that is, the bending of the first deformation portion 1313 is more, the deformation of the first deformation portion 1313 itself after the deformation is generated is small, so that it is easier to be restored after being stretched.

It should be noted that the thickness of the first elastic sheet 131 of the suspension mechanism 13 is usually between 30um and 60um, so that the first elastic sheet 131 has better elasticity. It is understood that the first deformation 1313 of the first elastic sheet 131 can be, but not limited to, implemented as at least two springs located between the first outer profile 1311 and the first inner profile 1312 and connecting the first outer profile 1311 and the first inner profile 1312, such that when the optical lens 12 is displaced under the action of the electromagnetic force between the coil 112 and the magnetic element 113, the first deformation 1313 of the first elastic sheet 131 is driven to generate a reactive damping force balanced with the electromagnetic force, so that the optical lens 12 is stably held at a certain position on the photosensitive path of the photosensitive assembly 20, thereby achieving auto-focusing or zooming of the camera module 1.

Preferably, the first deformation 1313 of the first elastic sheet 131 integrally extends from the first outer contour 1311 to the first inner contour 1312, that is, the first elastic sheet 131 is integrally formed.

More preferably, the first elastic sheet 131 has an integrated structure, which is helpful to improve the flatness of the first elastic sheet 131. For example, as shown in fig. 5, the first inner profile 1312 of the first elastic sheet 131 has a ring structure to define the first coupling hole 1310 with a fixed size, so as to be fixedly coupled to the lens barrel 121 of the optical lens 12. Optionally, the first outer contour 1311 of the first elastic sheet 131 may also have an annular structure, so as to further improve the overall flatness of the first elastic sheet 131, facilitate reducing the tilt tolerance of the optical lens 12, and improve the assembly precision of the module. Of course, in other examples of the present application, the first profile 1311 of the first elastic sheet 131 may also have a segment-shaped structure, that is, the first profile 1311 may include two or more partial profiles, and still be capable of being fixed to the driving base frame 111 of the driving assembly 11, so as to suspend the first profile 1312 from the space 110 of the driving assembly 11.

It should be noted that, according to the above example of the present application, the second elastic sheet 132 of the suspension mechanism 13 is similar to the first elastic sheet 131, and the whole of the second elastic sheet 132 is also in a sheet-like structure, and the second deformation portion 1323 of the second elastic sheet 132 extends from the second outer contour portion 1321 to the second inner contour portion 1322 in a bending manner, so as to reserve a sufficient space for the movement of the optical lens 12, so that while the large movement stroke of the optical lens 12 is ensured, the driving resistance of the optical lens 12 is reduced, and the sensitivity of the camera module 1 for focusing or zooming is improved.

Preferably, as shown in fig. 5, the second elastic sheet 132 has a split structure, so as to simplify the assembly difficulty of the lens assembly 10, and at the same time, the conductive performance of the second elastic sheet 132 can be electrically connected to the coil 112, so as to transmit electric energy to the coil 112 through the second elastic sheet 132. For example, the second elastic sheet 132 includes two half elastic sheets 132a, 132b, that is, the second inner profile 1322 of the second elastic sheet 132 includes two half inner profiles 1322a, 1322b having an arc structure, so as to enclose the second attachment hole 1320 by the two half inner profiles 1322a, 1322 b. Meanwhile, the second profile 1321 may include two pairs of local profiles 1321a, 1321b, and the second deformation 1323 includes two pairs of spring wires 1323a, 1323b, respectively, wherein each pair of the local profiles 1321a or 1321b is integrally connected with the corresponding half inner profile 1322a or 1322b through the spring wire 1323a or 1323b, respectively, to form two half elastic pieces 132a, 132b. In this way, the partial outlines 1321a, 1321b of the half elastic pieces 132a, 132b are respectively fixed to the driving base frame 111 of the driving assembly 11, and the half inner outlines 1322a, 1322b of the half elastic pieces 132a, 132b are respectively fixed to the lens barrel 121 of the optical lens 12, so as to stably suspend the optical lens 12 in the space 110 of the driving assembly 11.

It should be noted that, since the second elastic sheet 132 has a split structure, that is, includes two separated half elastic sheets 132, before the half inner profiles 1322a and 1322b of the half elastic sheets 132a and 132b are fixed to the lens barrel 121, the size of the second coupling hole 1320 surrounded by the two half inner profiles 1322a and 1322b can be changed, so that a thicker portion of the lens barrel 121 of the optical lens 12 can pass through the second coupling hole 1320, so that the optical lens 12 is assembled in the space 110 of the driving assembly 11 by a flip-chip process, which helps to reduce the assembly difficulty of the lens assembly 10. Meanwhile, the two half spring pieces 132a and 132b may be respectively connected to two ends of the coil 112 in an electrically conductive manner, so as to supply an operating current to the coil 112, so that an electromagnetic force is generated between the coil 112 and the magnet 113, and the optical lens 12 is driven to move. It can be understood that, when the size of the second coupling hole 1320 is changed, the half resilient pieces 132a and 132b of the second resilient piece 132 are only elastically deformed to avoid the irreversible deformation of the second resilient piece 132.

Of course, in the first modified embodiment of the present application, as shown in fig. 6, the first elastic sheet 131 may have a split structure, and the second elastic sheet 132 has an integrated structure; alternatively, in the second variant embodiment of the present application, as shown in fig. 7, the first elastic sheet 131 and the second elastic sheet 132 may have an integral structure at the same time; still alternatively, in a third modified embodiment of the present application, as shown in fig. 8, the first elastic piece 131 and the second elastic piece 132 may have a split structure at the same time.

According to the above embodiment of the present application, the coil 112 of the driving assembly 11 is usually disposed on the lens barrel 121 of the optical lens 12, and the magnetic element 113 of the driving assembly 11 is usually disposed on the driving base frame 111 correspondingly, so that under the action of the electromagnetic force generated by the magnetic element 113 when the coil 112 is energized, the optical lens 12 moves relative to the driving base frame 111, thereby realizing the auto-focusing or auto-zooming of the camera module 1. Of course, in other examples of the present application, the magnetic element 113 of the driving assembly 11 may also be disposed on the lens barrel 121 of the optical lens 12, and the coil 112 of the driving assembly 11 is correspondingly disposed on the driving base frame 111, and still can provide the driving force for the optical lens 12.

For example, as shown in fig. 5, the driving assembly 11 may further include at least two connection terminals 114 adapted to be electrically connectable with a power supply device, wherein the at least two connection terminals 114 are correspondingly disposed on the driving base frame 111, and the at least two connection terminals 114 are electrically connectable with the two half elastic pieces 132a and 132b of the second elastic piece 132 disposed on the lens barrel 121, respectively, so as to provide working power for the coil 112 through the connection terminals 114 and the second elastic piece 132 by the power supply device, so that the driving assembly 11 provides a driving force for the optical lens 12.

Preferably, the at least two connection terminals 114 are located on the same side of the driving base frame 111, so that the at least two connection terminals 114 and the circuit board 21 of the photosensitive assembly 20 can be electrically soldered on the same side without adjusting the orientation of the soldering equipment, which helps to simplify the assembly process and improve the assembly efficiency.

In an example of the present application, the driving base frame 111 of the driving assembly 11 may be, but is not limited to, manufactured by an injection molding process. Preferably, as shown in fig. 2 to 5, the driving base frame 111 includes a base 1111 and at least two brackets 1112 extending upward integrally from the base 1111, wherein the first elastic piece 131 and the second elastic piece 132 of the suspension mechanism 13 are mounted to the at least two brackets 1112 of the driving base frame 111 at intervals, so that the first elastic piece 131 and the second elastic piece 132 of the suspension mechanism 13 are mounted on the same member, which helps to improve parallelism between the first elastic piece 131 and the second elastic piece 132, and facilitates stably suspending the optical lens 12. Meanwhile, since the first contour 1311 of the first resilient plate 131 and the second contour 1321 of the second resilient plate 132 are fixed to the at least two brackets 1112 at intervals, respectively, there is a predetermined gap between the second deformable portion 1323 of the second resilient plate 132 and the base 1111, so as to prevent the base 1111 from blocking the deformation of the second deformable portion 1323 of the second resilient plate 132, and to reserve a sufficient space for the movement of the optical lens 12.

Optionally, the first profile 1311 of the first elastic piece 131 and/or the second profile 1321 of the second elastic piece 132 may be fixed to the at least two brackets 1112 of the driving base frame 111 by bonding or hot riveting. Of course, in other examples of the present application, the second contour 1311 of the first resilient piece 131 and/or the second contour 1321 of the second resilient piece 132 may also be integrally formed on the at least two brackets 1112 of the driving base frame 111 by insert molding, and still achieve the fixing purpose.

According to the above embodiment of the present application, as shown in fig. 1 to 5, the driving assembly 11 may further include an outer housing 115, wherein the outer housing 115 is sleeved on the driving base frame 111, and the outer housing 115 has an opening 1150 corresponding to the optical lens 12. It is understood that the optical lens 12 can participate in the assembly process of the camera module 1 before the outer housing 115, that is, in the embodiment of the present application, after the outer housing 115 is assembled outside the driving base frame 111, the optical lens 12 does not need to be installed in the space 110 of the driving assembly 11 through the opening 1150, and therefore, the aperture of the opening 1150 of the outer housing 115 can be reduced to be smaller than the size of the light emitting end 1202 of the optical lens 12. It should be understood that, after the aperture of the opening 1150 is reduced, it is not only beneficial to prevent external dust, dirt or stray light from entering the inside of the camera module 1, but also can prevent magnetic leakage from causing interference with an external magnetic field.

It should be noted that the coil 112 of the driving assembly 11 may be formed by winding an enameled wire, and is baked by hot air during the winding process to shape the coil 112, wherein the coil 112 is disposed on the lens barrel 121 of the optical lens 12, for example, the coil 112 may be directly wound on the lens barrel 121 of the optical lens 12, or may be pre-formed and then mounted on the lens barrel 121 of the optical lens 12. Correspondingly, the magnetic element 113 of the driving assembly 11 may be, but is not limited to, implemented as a magnet made of ru-fe material, wherein the magnetic element 113 is suitable for being disposed at four sides or four corners of the driving base frame 111. For example, in an example of the present application, the number of the coils 112 is one, and the coils 112 are circumferentially provided on the peripheral side of the lens barrel 121; correspondingly, the number of the magnetic elements 113 is one or more than one pair, and the magnetic elements 113 are symmetrically arranged on the driving base frame 111; of course, in another example of the present application, the number of the coils 112 may also be one pair or more, and the coils 112 are symmetrically attached to the side plane of the lens barrel 121. In another example of the present application, the magnetic element 113 may be correspondingly disposed on an inner wall of the outer casing 115 as long as it corresponds to the coil 112 to generate an electromagnetic force therebetween, which is not described in detail herein.

According to the above-mentioned embodiment of the present application, as shown in fig. 1 to 3, the photosensitive component 20 of the camera module 1 may include a circuit board 21, a photosensitive chip 22, a bracket 23, and a filter element 24, wherein the circuit board 21 serves as a mounting substrate of the photosensitive component 20. Specifically, the photosensitive chip 22 is electrically connected to the circuit board 21 (for example, in an example, the photosensitive chip 22 is mounted on an upper surface of the circuit board 21 and electrically connected to the circuit board 21 by means of gold wire bonding), so as to provide the control circuit and the electric power required by the operation of the photosensitive chip 12 through the circuit board 11.

The support 23 is formed on the circuit board 21 for supporting other components, wherein the support 23 has an optical window corresponding to at least a photosensitive region of the photosensitive chip 22. In other words, the driving base frame 111 of the lens assembly 10 is supported by the bracket 23, and the lens set 122 of the lens assembly 10 is correspondingly maintained in the photosensitive path of the photosensitive chip 22, so that external light firstly passes through the lens set 122 and then propagates to the photosensitive chip 22 to be received.

For example, in one particular example of the present application, the bracket 23 is implemented as a separately molded plastic bracket that is attached to the surface of the circuit board 21 by an adhesive and is used to support other components. Of course, in other examples of the present application, the bracket 23 can also be formed on the circuit board 21 in other manners, for example, the bracket 23 is implemented as a molded bracket that is integrally formed on the circuit board 21 at a predetermined position through a molding process.

Further, in some specific examples of the present application, the filter element 24 may be mounted on the bracket 23, so that the filter element 24 is maintained on a photosensitive path of the photosensitive chip 22, so that, in a process that the external light passes through the filter element 24 to reach the photosensitive chip 22, stray light in the external light can be filtered by the filter element 24, so as to improve imaging quality. It is worth mentioning that in other examples of the present application, the filter element 24 can also be mounted on the bracket 23 in other manners, for example, the filter element 24 can be indirectly mounted on the bracket 23 through other supporting members. Of course, in other examples of the present application, the filter element 24 can also be installed at other positions of the image capturing module, for example, the filter element 24 is formed in the optical lens 12 (for example, as a layer of filter film attached to a surface of a certain optical lens of the optical lens 12), which is not described in detail herein.

It should be noted that, in order to match the appearance of the optical lens 12, which is small at the top and large at the bottom, the aperture of the first coupling hole 1310 of the first elastic sheet 131 in the camera module 1 is smaller than the aperture of the second coupling hole 1320 of the second elastic sheet 132, so the present application further provides an assembly method of the camera module to assemble the camera module 1.

Specifically, according to an embodiment of the present application, as shown in fig. 9, the method for assembling the camera module may include:

s100: providing an optical lens 12, wherein the optical lens includes a lens barrel 121 and a lens group 122 assembled in the lens barrel 121;

s200: the optical lens 12 is repositionably suspended in the space 110 of the driving assembly 11 by a suspension mechanism 13 to form the lens assembly 10, wherein the suspension mechanism 13 includes a first elastic sheet 131 and a second elastic sheet 132 disposed at an interval in the optical axis direction of the driving assembly 11, wherein a first coupling hole 1310 of the first elastic sheet 131 is adapted to the light-in end 1201 of the optical lens 12 to couple with the lens barrel 121 of the optical lens 12, and a second coupling hole 1320 of the second elastic sheet 132 is adapted to the light-out end 1202 of the optical lens 12 to couple with the lens barrel 121 of the optical lens 12, wherein the size of the second coupling hole 1320 of the second elastic sheet 132 is larger than the size of the first coupling hole 1310 of the first elastic sheet 131; and

s300: the lens assembly 10 is correspondingly disposed on the photosensitive path of the photosensitive assembly 20 to form the camera module 1.

It should be noted that in the first example of the present application, as shown in fig. 10A, the step S200 of the method for assembling the image pickup module may include the steps of:

s211: integrally forming the second outer contour portion 1321 of the second elastic sheet 132 on the driving base frame 111 of the driving assembly 11 by an insert injection molding process;

s212: after the optical lens 12 is installed in the space 110 of the driving assembly 11, the second inner contour 1322 of the second elastic piece 132 is adhered or heat-riveted to the lower portion of the lens barrel 121 of the optical lens 12;

s213: disposing the coil 112 and the magnetic element 113 of the driving assembly 11 on the lens barrel 121 of the optical lens 12 and the driving base frame 111 of the driving assembly 11 oppositely; and

s214: the first inner profile 1312 and the first outer profile 1311 of the first elastic sheet 131 are respectively bonded or heat staked to the upper portion of the lens barrel 121 of the optical lens 12 and the bracket 1112 of the driving base 111 of the driving assembly 11 to form the lens assembly 10.

It is understood that, in this example of the present application, the second elastic piece 132 of the lens assembly 10 and the driving base frame 111 of the driving assembly 11 are integrally formed by an insert molding process, and the second profile 1311 of the second elastic piece 132 is preferably located above the driving base frame 111.

Specifically, as shown in fig. 10B, first, a base 1111 of the driving base frame 111 is obtained, wherein at least two connection terminals 114 are provided on the base 1111, and the at least two connection terminals 114 are preferably located on the same side of the base 1111, so as to facilitate the soldering of the at least two developed terminals 114 with the circuit board 21 of the photosensitive assembly 20. Optionally, the at least two connection terminals 114 are adapted to be integrally formed with the base 1111 through an insert molding process.

Preferably, the connection terminal 114 includes a lower end portion and an upper end portion integrally extending from the lower end portion, wherein the connection terminal 114 is insert-molded fixed in the base 1111, and the lower end portion of the connection terminal 114 is partially exposed for electrical connection with the circuit board 21, and a top surface of the upper end portion of the connection terminal 114 is exposed for electrical connection with the second resilient piece 132 or other energizing element. It can be understood that, since it is necessary to maintain the top surface of the upper end portion of the terminal 114 to be exposed and to support the bottom surface of the upper end portion of the terminal 114 by a support portion of an injection mold during the insert molding, the base 1111 of the driving base bracket 111 has a groove at a position corresponding to the upper end portion so that the bottom surface of the upper end portion of the terminal 114 is exposed.

Next, the second resilient tab 132 is flatly placed on the base 1111, and the two half resilient tabs 132a and 132b of the second resilient tab 132 are electrically connected to the at least two terminals 114 through conductive adhesive or welding, so that at least two brackets 1112 are integrally formed on four corner regions of the base 1111 and at least a partial region of the second outer contour 1321 of the second resilient tab 132 through an injection molding process, that is, at least a partial region of the second outer contour 1321 of the second resilient tab 132 is embedded between the base 1111 and the brackets 1112, so that the second resilient tab 132 is fixed on the driving base 111 through an insert injection molding method. It is understood that, since the base 1111 of the driving base 111 is an injection molded part, a flat mounting surface can be provided for the second resilient plate 132, and the at least two brackets 1112 formed by injection molding can also provide a flat mounting surface for the first resilient plate 131, when the first profile 1311 of the first resilient plate 131 is fixed to the at least two brackets 1112, a better parallelism between the first resilient plate 131 and the second resilient plate 132 can be maintained.

Preferably, the press-fit side of the second profile 1321 of the second resilient tab 132 provides a desired mold press-fit position during injection molding, so that after the second resilient tab 132 and the driving base frame 111 are integrally molded, the press-fit side of the second profile 1321 of the second resilient tab 132 is exposed outside the driving base frame 111, so that the second profile 1321 of the second resilient tab 132 is partially wrapped in the driving base frame 111.

Then, the optical lens 12 is installed in the space 110 of the driving assembly 11, that is, the lens barrel 121 of the optical lens 12 is first placed on the second elastic sheet 132, and then the lower portion of the lens barrel 121 of the optical lens 12 is fixedly connected to the second inner contour 1322 of the second elastic sheet 132.

Then, the first inner contour 1312 of the first elastic piece 131 is fixedly connected with the upper part of the lens barrel 121 of the optical lens 12, and the first outer contour 1311 of the first elastic piece 132 is fixedly mounted on the upper surfaces of the at least two brackets 1112. It is understood that the first profile 1311 of the first elastic sheet 132 may be fixed to the at least two brackets 1112 by gluing, or may be fixedly connected by hot riveting through riveting holes of the first profile 1311 and riveting posts of the at least two brackets 1112.

Preferably, the upper end surface of the lens barrel 121 of the optical lens 12 is higher than the top surface of the first inner profile 1312 of the first elastic sheet 131, and the lower end surface of the lens barrel 121 is lower than the bottom surface of the second inner profile 1322 of the second elastic sheet 132, so that the first elastic sheet 131 and the second elastic sheet 132 do not directly impact other components, and the risk of damage to the first elastic sheet 131 and the second elastic sheet 132 is avoided.

Finally, the coils 112 and the magnetic elements 113 are respectively and correspondingly mounted on the lens barrel 121 of the optical lens 12 and four sides or four corners of the driving base frame 111 of the driving assembly 11 to form the lens assembly 10.

Preferably, a distance between the first inner contour 1312 of the first elastic piece 131 and the second inner contour 1322 of the second elastic piece 132 is greater than a height of the coil 112, so as to provide a mounting space for the coil 112 on the lens barrel 121.

More preferably, the first profile 1311 of the first resilient tab 131 may have a height higher than that of the first inner profile 1312 so as to increase the driving stroke of the driving assembly 11. Optionally, the height of the second profile 1321 of the second elastic sheet 132 may also be lower than the height of the second profile 1322, so as to increase the driving stroke of the driving assembly 11.

In this example, the second elastic sheet 132 includes two half elastic sheets 132a, 132b, wherein half outer contours 1321a, 1321b of the two half elastic sheets 132a, 132b are respectively connected to the two terminals 114 in an electrically conductive manner, and half inner contours 1322a, 1322b of the two half elastic sheets 132a, 132b are connected to two electrical connection points of the coil 112 in an electrically conductive manner, and simultaneously, the two terminals 114 are connected to the circuit board 21 of the photosensitive assembly 20 in an electrically conductive manner, so that current is provided to the coil 112 through the second elastic sheet 132 to drive the optical lens 12 to move up or down under the action of electromagnetic force generated between the coil 112 and the magnetic element 113.

Of course, in other examples of the present application, the second resilient tab 132 may also be directly attached to the base 1111 of the driving base frame 111, that is, the second outer contour portion 1321 of the second resilient tab 132 may be adhered and fixed to four corner regions of the base 1111 by glue, or the second resilient tab 132 may also be fixed by thermal riveting through a riveting hole located on the second outer contour portion 1321 and a riveting column located on the four corner regions of the base 1111.

It is understood that, although the second elastic piece 132 in the above examples of the present application has a split structure to conduct a circuit for the coil 112 through the second elastic piece 132, the first elastic piece 131 may have an integrated structure, or may have a split structure.

It should be noted that, in other examples of the present application, the second elastic piece 132 may also have an integrated structure, so that when the second elastic piece 132 is mounted on the driving pedestal 111, the second elastic piece 132 can maintain a better consistency, so that the entire plane of the second elastic piece 132 can be mounted on the base 1111 with a smaller tilt tolerance, and the assembly precision of the lens assembly 10 is ensured after the second elastic piece 132 is insert-molded on the driving pedestal 111. Of course, when the second elastic piece 132 has an integrated structure, the two electrical connection points of the coil 112 cannot be electrically connected to the second elastic piece 132 at the same time, so that when the first elastic piece 131 has an integrated structure, the two electrical connection points of the coil 112 can be electrically connected to the first elastic piece 131 and the second elastic piece 132, respectively, so as to achieve the circuit conduction of the coil 112; or, when the first elastic piece 131 has a split structure, the two electrical connection points of the coil 112 can be electrically connected to the first elastic piece 131, and the circuit of the coil 112 can still be conducted.

It should be noted that, when the second elastic piece 132 has a split structure, the two half elastic pieces 132 of the second elastic piece 132 are difficult to be kept on the same plane due to being separated from each other, and especially when the second elastic piece 132 is integrally formed by an insert injection molding process, the overall flatness of the second elastic piece 132 is more difficult to be guaranteed, which results in an increase in the tilt tolerance of the optical lens 12. In order to solve the problem, as shown in fig. 10B, before the second elastic piece 132 is mounted, the two half elastic pieces 132a and 132B of the second elastic piece 132 are integrally connected through a bridge 133, so that the consistency of the second elastic piece 132 in the mounting process is improved; after the second elastic piece 132 is mounted, the bridge 133 is cut off to be sleeved on the lens barrel 121 of the optical lens 12. It is understood that the second resilient tab 132 may be directly fixed to the driving base 111 by means of bonding, welding or heat riveting, or the second resilient tab 132 may be embedded in the driving base 111 by means of insert molding.

In other words, before the second elastic sheet 132 is mounted, the half inner contours 1322a, 1322b of the two half elastic sheets 132a, 132b of the second elastic sheet 132 and the bridge 133 are integrally formed to form an elastic sheet with a bridge, so that the second elastic sheet 132 with a split structure is integrally mounted first, thereby improving the mounting smoothness and reducing the decrease in the consistency between the two half elastic sheets 132a, 132b of the second elastic sheet 132 during the insert molding process of the second elastic sheet 132; after the second elastic sheet 132 is mounted, the bridge 133 may be cut off by, for example, laser cutting, so as to obtain two separated half elastic sheets 132a and 132b. It can be understood that when the bridge 133 is cut by using the laser cutting method, the portion of the second inner contour 1322 of the second elastic sheet 132, which is originally connected to the bridge 133, has a cutting trace. Certainly, when the first elastic sheet 131 also has a split structure, the first elastic sheet 131 may also be mounted to the driving base frame 111 by the bridge mounting method, which is not described herein again.

In the second example of the present application, as shown in fig. 11A, the step S200 of the method for assembling an image pickup module may include the steps of:

s221: a bracket 1112 for fixedly connecting the first contour 1311 of the first elastic sheet 131 to the driving base 111 of the driving assembly 11;

s222: after the optical lens 12 is flipped over the space 110 of the driving assembly 11, the first inner profile 1312 of the first elastic piece 131 is adhered or heat-riveted to the upper portion of the lens barrel 121 of the optical lens 12;

s223: bonding or heat-riveting a second inner contour 1322 and a second outer contour 1321 of the second elastic piece 132 to the lower portion of the lens barrel 121 of the optical lens 12 and the driving base frame 111, respectively; and

s224: the coil 112 and the magnetic element 113 of the driving assembly 11 are respectively oppositely disposed on the lens barrel 121 of the optical lens 12 and the driving base frame 111 of the driving assembly 11 to form the lens assembly 10.

Illustratively, as shown in fig. 11B, in this example of the present application, first, the first elastic sheet 131 is fixedly connected to at least two brackets 1112 of the driving pedestal 111, that is, the driving pedestal 111 includes a base 1111 and at least two brackets 1112 integrally extending upward from four corner regions of the base 1111, so as to form a mounting surface with a height difference on the surface of the driving pedestal 111. It is understood that the base 1111 and the at least two brackets 1112 of the driving base 111 may be integrally formed through an injection molding process (i.e., one-shot molding), and the at least two brackets 1112 may be further integrally formed on the formed base 1111 through an injection molding process (i.e., two-shot molding).

Preferably, the first profile 1311 of the first elastic piece 131 is heat riveted to the at least two brackets 1112. Of course, the first profile 1311 of the first elastic sheet 131 may also be fixed to the at least two brackets 1112 by gluing; alternatively, the first contour 1311 of the first elastic sheet 131 may be injection molded to the at least two brackets 1112 by injection molding again.

Next, the optical lens 12 is flipped into the space 110 of the driving assembly 11, so that the first inner contour 1312 of the first elastic sheet 131 and the lens barrel 121 of the optical lens 12 are fixedly connected by bonding or hot riveting. It is understood that the flip-chip of the present application refers to the assembly of the optical lens 12 from the base 1111 to the first elastic sheet 131, i.e. the light-in end 1201 of the optical lens 12 is inserted into the space 110 first, and the light-out end 1202 of the optical lens 12 is inserted into the space 110 later.

Then, the second outer contour 1321 of the second elastic piece 132 is directly attached to the base 1111 of the driving base frame 111, and the lens barrel 121 of the optical lens 12 is fixedly connected to the second inner contour 1322 of the second elastic piece 132. It is understood that the second outer contour 1321 of the second elastic piece 132 may be adhesively fixed to the four corner regions of the base 1111 by glue, or the second elastic piece 132 may be thermally riveted to the four corner regions of the base 1111 by riveting holes located on the second outer contour 1321 and riveting posts located on the four corner regions of the base 1111.

Finally, the coils 112 and the magnetic elements 113 are correspondingly mounted on the lens barrels 121 of the optical lenses 12 and four sides or four corners of the driving base frame 111 of the driving assembly 11, respectively, to form the lens assembly 10.

In the third example of the present application, as shown in fig. 12A, the step S200 of the method for assembling an image pickup module may include the steps of:

s231: integrally forming the first contour 1311 of the first elastic sheet 131 and the second contour 1321 of the second elastic sheet 132 on the bracket 1112 of the driving base 111 of the driving assembly 11 by an insert molding process;

s232: the optical lens 12 is flipped in the space 110 of the driving assembly 11 through the second docking hole 1320 of the second elastic piece 132;

s233: bonding or heat-riveting the first inner profile 1312 of the first elastic piece 131 and the second inner profile 1322 of the second elastic piece 132 to the upper portion and the lower portion of the lens barrel 121 of the optical lens 12, respectively; and

s234: the coil 112 and the magnetic element 113 of the driving assembly 11 are respectively oppositely disposed on the lens barrel 121 of the optical lens 12 and the driving base 111 of the driving assembly 11 to form the lens assembly 10.

Exemplarily, in this example of the present application, as shown in fig. 12B, the second resilient tab 132 is first placed on the base 1111 flatly, and the at least two brackets 1112 are integrally formed on the four corner regions of the base 1111 and the second resilient tab 132 by injection molding, that is, at least a portion of the second outer contour 1321 of the second resilient tab 132 is embedded between the base 1111 and the brackets 1112, so that the second resilient tab 132 is fixed on the driving base 111 by insert molding; the first resilient tab 131 is then flatly placed on the upper surfaces of the at least two brackets 1112, and at least two protrusions are integrally and upwardly extended from the upper surfaces of the at least two brackets 1112 by injection molding, so that the first contour 1311 of the first resilient tab 131 is injection molded in the at least two brackets 1112.

It should be noted that in other examples of the present application, as shown in fig. 12C, the first elastic sheet 131 and the second elastic sheet 132 may also be integrally formed with the driving base frame 111 by one-step injection molding, that is, the second elastic sheet 132 is flatly placed on the base 1111, and the supporting pillar 134 arranged along the height direction on the first elastic sheet 131 is used to support the first elastic sheet 131 through the supporting pillar 134, so that the first elastic sheet 131 and the second elastic sheet 132 can keep a better parallelism; then, the at least two brackets 1112 are integrally formed on the four corner regions of the base 1111, the first resilient piece 131, the second resilient piece 132 and the supporting pillars by injection molding, that is, at least a part of the first outer contour 1311 of the first resilient piece 131 and the second outer contour 1321 of the second resilient piece 132 are embedded in the at least two brackets 1112, and the supporting pillars 134 are completely embedded in the at least two brackets 1112.

It should be noted that the lens group 122 of the optical lens 12 in the camera module 1 of the present application may include at least two lenses arranged along the optical axis, wherein the number of the lenses in the lens group 122 may be changed according to the optical design, and the lens barrel 121 of the optical lens 12 may be configured to accommodate the at least two lenses therein along the optical axis direction.

Furthermore, in the above-mentioned embodiments and various examples of the present application, the optical lens 12 in the camera module 1 is implemented as a conventional lens, that is, all the lenses in the lens group 122 of the optical lens 12 are conventional lenses, but in other examples of the present application, the optical lens 12 may also be implemented as a cut-edge lens (i.e., a D-cut lens), that is, the optical lens 12 is provided with a cut edge on a part of the lenses thereof to form a cut-edge lens, wherein the cut edge has at least one cut edge and at least one round edge adjacent to the at least one cut edge, and the curvature of the cut edge is different from the curvature of the round edge. It can be understood that, since the upper lens and the lower lens of the optical lens 12 are smaller and larger, the present application only needs to perform trimming on the lower lens of the optical lens 12, which helps to reduce the volume and weight of the optical lens 12.

Preferably, the curvature of the cut edge lens is zero, and the curvature of the circular edge is greater than zero, that is, the cut edge is a straight line segment, and the circular edge is an arc line segment. It will be appreciated that the cutting of the edged lens is only performed in the non-optical area to avoid affecting the optical area of the optical lens 12.

Illustratively, the edged lens has two symmetrically arranged edges and two round edges, so that the edged lens has symmetry, and thus when the lens is produced by molding, the internal stress generated by the edged lens is relatively uniform, and therefore, the edged lens is relatively more uniform when the lens is shrunk by molding, so that the face shape accuracy of the edged lens can be improved to some extent.

It should be noted that, in order to tightly combine the edge-cut lens with the lens barrel, the lens barrel 121 of the optical lens 12 is also provided with an edge-cut portion corresponding to the edge of the edge-cut lens, so that when the edge-cut lens is assembled to the lens barrel 121, the pressure action of the lens barrel 121 on the edge-cut lens is relatively uniformly symmetrical, so that the deformation of the edge-cut lens in the lens barrel 121 is more uniformly symmetrical. It is understood that the edged lens can be integrally formed by injection molding, and the edge of the edged lens can be directly formed by setting a mold; of course, the edge-cut lens can also be formed into a conventional lens and then cut by cutting.

Furthermore, when the optical lens 12 is implemented as a side cut lens, the side cut portion in the optical lens 12 will have a larger installation space so as not to increase the entire volume and weight of the camera module 1 while the coil 112 is being placed. Preferably, as shown in fig. 13A, the number of the coils 112 is two, and the coils 112 are respectively disposed at two chamfered portions of the lens barrel 121 to generate electromagnetic driving forces at opposite sides of the optical lens 12, thereby driving the optical lens 12 to move smoothly.

More preferably, the coil 112 may be prefabricated into an air core plane coil, that is, the coil 112 itself has a plane surface, so as to be flatly attached to the cut edge portion of the lens barrel 121, so as to correspond to the cut edge of the cut edge lens. Of course, in another example of the present application, as shown in fig. 13B, the coil 112 may be disposed at a round edge portion of the lens barrel 121 to correspond to a round edge of the edged lens, that is, the coil 112 is disposed adjacent to the edged portion of the lens barrel 121, so that the coil 112 is collectively disposed at the round edge portion of the lens barrel 121, thereby further reducing the size of the image pickup module 1 at one side of the lens assembly 10.

According to another aspect of the present invention, the present invention further provides an electronic apparatus, wherein the electronic apparatus includes an electronic apparatus body and at least one camera module 1, and each camera module 1 is respectively disposed on the electronic apparatus body for obtaining an image. It should be noted that the type of the electronic device body is not limited, for example, the electronic device body may be any electronic device capable of being configured with the camera module, such as a smart phone, a tablet computer, a notebook computer, an electronic book, a personal digital assistant, a camera, and the like.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. The module of making a video recording, its characterized in that includes:

a photosensitive assembly; and

a lens assembly, wherein the lens assembly is correspondingly disposed on a photosensitive path of the photosensitive assembly, and the lens assembly includes:

a drive assembly, wherein the drive assembly has a space;

the suspension mechanism is used for suspending the optical lens in the space of the driving mechanism in a resettable manner, and comprises a first elastic sheet and a second elastic sheet which are arranged in the driving assembly at intervals along the optical axis direction, wherein a first sleeving hole of the first elastic sheet is matched with a light inlet end of the optical lens so as to be sleeved on the lens barrel of the optical lens, a second sleeving hole of the second elastic sheet is matched with a light outlet end of the optical lens so as to be sleeved on the lens barrel of the optical lens, and the size of the first sleeving hole of the first elastic sheet is smaller than that of the second sleeving hole of the second elastic sheet.

2. The camera module of claim 1, wherein the driving assembly comprises a driving base frame defining the space, and a coil and a magnetic element disposed opposite to each other for driving the optical lens, wherein the first resilient piece has at least one first outer contour portion fixedly connected to the driving base frame, at least one first inner contour portion defining the first coupling hole, and one or more first deformation portions integrally connected between the first outer contour portion and the first inner contour portion, and the first inner contour portion of the first resilient piece is fixedly connected to an upper portion of the lens barrel.

3. The camera module of claim 2, wherein the second resilient piece has one or more second outer contours fixedly connected to the driving base, one or more second inner contours defining the second mating holes, and one or more second deformation portions integrally connected between the second outer contours and the second inner contours, wherein the second inner contours of the second resilient piece are fixedly connected to the lower portion of the lens barrel.

4. The camera module according to claim 3, wherein the first elastic sheet and/or the second elastic sheet are/is of a sheet-like structure, and the first deformation portion of the first elastic sheet and/or the second deformation portion of the second elastic sheet extend in a bending manner.

5. The camera module of claim 4, wherein the drive chassis of the drive assembly includes a base and at least two legs extending integrally upward from the base, wherein the first and second resilient tabs of the suspension mechanism are mounted to the legs of the drive chassis in spaced relation.

6. The camera module of claim 5, wherein the first profile of the first resilient tab and/or the second profile of the second resilient tab is bonded or heat staked to the bracket of the drive chassis.

7. The camera module of claim 5, wherein the first profile of the first resilient tab and/or the second profile of the second resilient tab are integrally formed on the bracket of the driving base by an insert molding process.

8. The camera module of any of claims 2-7, wherein the coil is disposed on the barrel of the optical lens, and the magnetic element is correspondingly disposed on the drive base.

9. The camera module of any one of claims 1-7, wherein the first resilient tab and/or the second resilient tab have an integral structure or a split structure, respectively.

10. The camera module of any one of claims 1-7, wherein the photosensitive assembly includes a circuit board, a photosensitive chip electrically connected to the circuit board, a holder formed on the circuit board, and a filter element mounted on the holder, wherein the driving base frame of the lens assembly is supportably disposed on the holder, and the lens assembly of the lens assembly is correspondingly held on a photosensitive path of the photosensitive chip.

11. The method for assembling the camera module is characterized by comprising the following steps:

12. The method for assembling a camera module according to claim 11, wherein the step S200 includes the steps of:

integrally forming the second outline part of the second elastic sheet on the driving base frame of the driving assembly through an insert injection molding process;

the coil and the magnetic element of the driving component are respectively oppositely arranged on the lens cone of the optical lens and the driving base frame of the driving component; and

and respectively bonding or hot riveting the first inner contour part and the first outer contour part of the first elastic sheet to the upper part of the lens cone of the optical lens and the bracket of the driving pedestal of the driving assembly to form the lens assembly.

13. The method for assembling a camera module according to claim 11, wherein the step S200 includes the steps of:

respectively bonding or hot riveting a second inner contour part and a second outer contour part of the second elastic sheet to the lower part of the lens cone of the optical lens and the driving base frame; and

14. The method for assembling a camera module according to claim 11, wherein the step S200 includes the steps of:

15. The method for assembling a camera module of claim 14, wherein in the step S200, the first profile of the first resilient piece is supportingly connected by a supporting pillar before the insert molding process, so that the supporting pillar is embedded in the bracket of the driving base frame after the insert molding process is completed.

16. The method according to any one of claims 12 to 15, wherein in step S200, when the first elastic piece or the second elastic piece has a split structure, two half elastic pieces of the first elastic piece or the second elastic piece are integrally connected through a bridge before the first elastic piece or the second elastic piece is mounted, and after the first elastic piece or the second elastic piece is mounted, the bridge is cut off to be sleeved on the lens barrel of the optical lens.

17. The method according to claim 16, wherein in step S200, the two electrical connection points of the coil are electrically connected to at least two connection terminals of the driving assembly through the two half-elastic pieces of the first elastic piece or the second elastic piece, respectively.

18. The method according to any one of claims 12 to 15, wherein in the step S200, when the first resilient piece and the second resilient piece have an integrated structure, the two electrical connection points of the coil are electrically connected to at least two connection terminals of the driving assembly through the first resilient piece and the second resilient piece, respectively.

19. The method for assembling a camera module according to any one of claims 12-15, wherein in the step S200, the optical lens is a trimming lens, and the coil of the driving assembly is correspondingly disposed on a trimming portion or a circular portion of the trimming lens.

20. A lens assembly, comprising:

a drive assembly, wherein the drive assembly has a space;

an optical lens, wherein the optical lens is arranged in the space of the driving component in a driving way, and the optical lens comprises a lens barrel and a lens group assembled in the lens barrel; and

the suspension mechanism is used for suspending the optical lens in the space of the driving mechanism in a resettable manner, and comprises a first elastic sheet and a second elastic sheet which are arranged on the driving assembly at intervals, wherein a first sleeving hole of the first elastic sheet is matched with an incident end of the optical lens so as to be sleeved on the lens barrel of the optical lens, a second sleeving hole of the second elastic sheet is matched with an emergent end of the optical lens so as to be sleeved on the lens barrel of the optical lens, and the size of the first sleeving hole of the first elastic sheet is smaller than that of the second sleeving hole of the second elastic sheet.