CN117156226A

CN117156226A - Camera module

Info

Publication number: CN117156226A
Application number: CN202210555679.5A
Authority: CN
Inventors: 俞丝丝; 卞强龙; 陈青青; 黄增云; 肖小巍; 徐晨洁
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2023-12-01

Abstract

The application discloses a camera module, which is characterized by comprising: a photosensitive assembly; a lens assembly held on a photosensitive path of the photosensitive assembly, the lens assembly having an optical axis; and a telescoping assembly comprising: the fixing component is fixed on the photosensitive component; the telescopic driving module drives the lens assembly to linearly move towards the image side direction; the ejecting module is arranged on the image side of the lens assembly, and the lens assembly is driven by the ejecting module to linearly move towards the object side; and a holding module including a first holding member and a second holding member disposed opposite to each other, wherein the first holding member is fixed to one of the fixing member and the lens assembly, and the second holding member is fixed to the other of the fixing member and the lens assembly, and a force generated between the first holding member and the second holding member causes the lens assembly to be held at one side of the telescopic member, thereby obtaining an image pickup module having a better imaging quality.

Description

Camera module

Technical Field

The application relates to the technical field of camera modules, in particular to a telescopic camera module.

Background

With the development and popularization of mobile electronic devices, related technologies of camera modules applied to the mobile electronic devices for helping users to acquire images have been rapidly developed and advanced. Currently, with the improvement of living standard in the market, consumers are increasingly demanding and diversifying the functions of camera modules configured in mobile electronic devices (e.g., smart phones), for example, not only the camera modules are required to be able to achieve wide-angle shooting to shoot images of a subject at a larger viewing angle in a relatively short shooting distance range, but also the functions of telephoto shooting are required to be able to shoot clear pictures of the subject at different distances through optical focusing.

In order to meet the increasingly wide market demands, the small-size and thin-type camera modules are irreversible development trends. However, in order to realize the function of tele shooting, the camera module needs to be provided with a tele lens with a long focal length, which means that the overall size of the camera module capable of realizing the tele shooting function is relatively large and the height is relatively high. Therefore, the camera module is difficult to meet the requirements of small size and thinness while realizing the long-focus shooting function.

In order to solve the technical contradiction between the high design of the camera module and the high-power zoom shooting function, most manufacturers adopt periscope type camera modules to replace the traditional vertical camera modules. Compared with the traditional vertical camera module, the periscope type camera module is provided with the light turning element (such as a prism, a reflecting mirror and the like) to change the imaging optical path, so that the reduction of the overall height dimension of the camera module is realized, and meanwhile, the optical design requirement with a larger effective focal length is met.

However, periscope type camera modules have relatively more complex structures, which on the one hand lead to an increase in cost thereof and on the other hand also directly lead to an increase in process difficulty thereof. In terms of optical performance, although the periscope type camera module has a relatively large effective focal length, the effective focal length is a fixed value, that is, the periscope type camera module has relatively poor adjustability in optical performance. In order to meet the diversified demands of consumers on the camera modules, a plurality of camera modules are generally required to be configured for the electronic equipment, namely, a plurality of camera modules are configured for the electronic equipment, which not only brings about the sharp increase of cost, but also further aggravates the process difficulty.

Therefore, a new camera module solution is needed.

Disclosure of Invention

An object of the present application is to provide a camera module, which overcomes the shortcomings of the prior art, and designs the camera module to be switchable between an extended state and a retracted state, so as to be beneficial to solving the contradiction between the imaging quality of the camera module and the height thereof.

According to an aspect of the present application, there is provided an image pickup module including:

a photosensitive assembly;

a lens assembly held on a photosensitive path of the photosensitive assembly, the lens assembly having an optical axis; and

a telescoping assembly, comprising:

a fixing assembly fixed to the photosensitive assembly;

the lens assembly is driven by the telescopic driving module to linearly move towards the image side direction;

the pop-up module is arranged on the image side of the lens assembly, and the lens assembly is driven by the pop-up module to linearly move towards the object side;

and a holding module including a first holding member and a second holding member disposed opposite to each other, wherein the first holding member is fixed to one of the fixing assembly and the lens assembly, the second holding member is fixed to the other of the fixing assembly and the lens assembly, and a force generated between the first holding member and the second holding member causes the lens assembly to be held at one side of the telescopic assembly.

In some embodiments, the lens assembly includes a lens driving module and an optical lens mounted to the lens driving module, the lens driving module including at least one driving magnet, at least one of the driving magnets being disposed on a different side of the lens assembly than the holding module.

In some embodiments, the ejecting module includes a support base fixed to the photosensitive assembly, and an elastic member clamped between the support base and the lens assembly, the fixing assembly being fixed to the support base and thus to the photosensitive assembly.

In some embodiments, the telescoping assembly includes a support module, the holding module being located on the same side or opposite sides of the lens assembly as the support module, the support module being sandwiched between the lens assembly and the fixed assembly.

In some embodiments, the first holding component comprises a magnet part, the second holding component comprises a magnet yoke part, magnetic attraction is generated between the magnet part and the magnet yoke part, magnetic attraction perpendicular to the optical axis is generated between the magnet part and the magnet yoke part, so that the lens assembly is held on one side of the telescopic assembly, and the holding module and the supporting module are positioned on the same side of the lens assembly.

In some embodiments, the magnet portion is fixed to the lens assembly, the yoke portion is fixed to the fixing assembly, and a height dimension of the yoke portion is greater than a height dimension of the magnet portion.

In some embodiments, the first holding component comprises a first magnet part, the second holding component comprises a second magnet part, magnetic repulsion between the first magnet part and the second magnet part generates a magnetic repulsive force perpendicular to the optical axis, so that the lens assembly is held on one side of the telescopic assembly, and the holding module and the supporting module are positioned on the opposite side of the lens assembly.

In some embodiments, the first magnet portion is fixed to the lens assembly, the second magnet portion is fixed to the fixing assembly, and a height dimension of the second magnet portion is greater than a height dimension of the first magnet portion.

In some embodiments, the telescopic assembly includes a stop module, the stop module includes a stop movable assembly and the fixed assembly, the stop movable assembly is fixed to the lens assembly, and the lens assembly is blocked from moving towards the object side direction of the optical axis by the abutment between the stop movable assembly and the fixed assembly.

In some embodiments, the telescopic assembly comprises a housing, the housing comprises a cover and a base, and the cover and the base are mutually buckled to form a containing cavity to contain the ejecting module, the telescopic driving module and the holding module.

Compared with the prior art, the application has at least one of the following technical effects:

1. through the effect of popping up the module, provide the effort that the lens subassembly kept away from photosensitive assembly to simplify the drive structure design of camera module.

2. Through the cooperation between popping up module and the flexible drive module, realize that the camera lens subassembly removes along the optical axis, reduce the height of camera module.

3. The lens assembly is held on one side of the telescopic assembly by the holding module, and is aligned with the photosensitive assembly during movement along the optical axis.

Additional embodiments and features are set forth in part in the description which follows and in part will become apparent to those skilled in the art upon examination of the specification or may be learned by practice of the disclosed subject matter. A further understanding of the nature and advantages of the present disclosure may be realized by reference to the remaining portions of the specification and the drawings which form a part of this disclosure.

Drawings

Fig. 1A is a schematic structural view of an inactive state of an image capturing module according to an embodiment of the present application;

fig. 1B is a schematic structural diagram of an operating state of an image capturing module according to an embodiment of the present application;

FIG. 2A is a schematic cross-sectional view of an inactive state of an imaging module according to an embodiment of the present application;

fig. 2B is a schematic cross-sectional view of an operating state of the camera module according to the embodiment of the present application;

fig. 3A, 3B, 3C are schematic structural views of three lens driving modules according to an embodiment of the present application;

FIG. 4 is a schematic structural view of an electrical connection assembly according to an embodiment of the present application;

FIG. 5 is an exploded view of a camera module according to an embodiment of the present application;

FIG. 6A is another exploded view of a camera module according to an embodiment of the present application;

FIG. 6B is a schematic structural view of a sleeve drive according to an embodiment of the present application;

fig. 7A and 7B are schematic structural views of two pop-up modules according to an embodiment of the present application;

FIG. 8A is an exploded schematic view of a sleeve module according to an embodiment of the present application;

FIG. 8B is a schematic structural view of a sleeve module according to an embodiment of the present application;

FIG. 8C is another structural schematic of a sleeve module according to an embodiment of the present application;

FIGS. 9A, 9B are two exploded schematic views of a retention module according to an embodiment of the application;

FIG. 10A is a top view of a stop module according to an embodiment of the application;

fig. 10B is a schematic structural view of a stopper module according to an embodiment of the present application.

FIG. 11A is a schematic cross-sectional view of an imaging module according to another embodiment of the present application;

FIG. 11B is a side view of an imaging module according to another embodiment of the present application;

fig. 11C is a bottom view of an image capturing module according to another embodiment of the present application.

Fig. 12A is a schematic cross-sectional view of a non-operating state of an image pickup module according to still another embodiment of the present application;

fig. 12B is a schematic sectional view of an operating state of an image pickup module according to still another embodiment of the present application;

fig. 13A, 13B are two exploded schematic views of a retention module according to yet another embodiment of the present application.

Detailed Description

The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that, as used in the present application, the terms "substantially," "about," and the like are used as terms of approximation of a table, not as terms of degree of the table, and are intended to illustrate inherent deviations in measured or calculated values that will be recognized by those of ordinary skill in the art.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Various units, circuits, or other components may be described or described as "configured to" perform a task or tasks. In such contexts, "configured to" implies that the structure (e.g., circuitry) is used by indicating that the unit/circuit/component includes the structure (e.g., circuitry) that performs the task or tasks during operation. . Further, "configured to" may include a general-purpose structure (e.g., a general-purpose circuit) that is manipulated by software and/or firmware to operate in a manner that is capable of performing one or more tasks to be solved. "configured to" may also include adjusting a manufacturing process (e.g., a semiconductor fabrication facility) to manufacture a device (e.g., an integrated circuit) suitable for performing or executing one or more tasks.

The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification and the appended claims, the singular forms "a," "an," and "the" are intended to cover the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As used herein, the term "if" may be interpreted to mean "when..or" at..times "or" in response to a determination "or" in response to detection "depending on the context. Similarly, the phrase "if a condition or event is identified" or "if a condition or event is detected" may be interpreted to mean "upon identification of the condition or event," or "upon detection of the condition or event, depending on the context.

Summary of the application

As described above, in order to achieve the function of telephoto shooting, the image capturing module needs to be configured with a telephoto lens with a long focal length, which means that the overall volume of the image capturing module capable of achieving the function of telephoto shooting is relatively large and the height is relatively high. Therefore, the camera module is difficult to meet the requirements of small size and thinness while realizing the long-focus shooting function.

For this purpose, some camera modules are designed to: the camera module can be switched between an extension state and a contraction state, and the overall height of the camera module is reduced in the mode. However, the current telescopic camera module has some defects in the auto-focusing process, for example: short focusing stroke, low focusing precision, etc.

Specifically, the camera module mainly drives the distance between the optical lens and the photosensitive component through the driver to enable the camera module to be switched between an extending state and a contracting state, and focusing is achieved. However, in the focusing process of the camera module, the current driver for driving the optical lens is not enough in driving force, and cannot meet the focusing stroke of the camera module, or the camera module is difficult to clearly image due to low focusing precision.

However, the different drivers have some natural drawbacks due to their different operating principles and structures. For example, a stepper motor is a driver that converts an electric pulse signal into angular displacement or linear displacement, and the working principle of the stepper motor is: upon receipt of a single pulse signal, the rotor rotates by a unit angle or advances by a unit distance, wherein the unit angle and the unit distance depend on the pitch angle of the stepper motor (pitch angle refers to the angle by which the rotor rotates per one pulse signal received by the stepper motor). Although the stepping motor can provide a large driving force and a long driving stroke, the operating principle and structure of the stepping motor make it difficult to achieve a relatively accurate driving.

Thus, it seems that it is difficult to solve the problems of short focusing stroke and low focusing accuracy by improving the driving performance of the driver. The inventor of the present application considers that since the natural defects of different drivers are difficult to avoid, the driving performance of the whole optical lens can be improved by utilizing the advantages of each driver in driving performance so as to meet the requirement of the telescopic camera module on focusing performance.

Based on this, the present application proposes a camera module, which includes: the camera module comprises a photosensitive component, a lens component and a telescopic component, wherein the lens component is kept on a photosensitive path of the photosensitive component, and the telescopic component is configured to drive the lens component to move relative to the photosensitive component so as to enable the camera module to be switched between an operating state and a non-operating state.

Having described the basic principles of the present application, various non-limiting embodiments of the present application will now be described in detail with reference to the accompanying drawings.

Exemplary camera Module

As shown in fig. 1A to 11C, the image capturing module 1 according to the embodiment of the present application is illustrated, the image capturing module 1 includes a lens assembly 10, a telescopic assembly 20 and a photosensitive assembly 30, wherein the lens assembly 10 is held on a photosensitive path of the photosensitive assembly 30, and the telescopic assembly 20 is configured to drive the lens assembly 10 to move relative to the photosensitive assembly 30, so that the image capturing module 1 is switched between an operating state and a non-operating state.

Alternatively, the present application defines a position where the distance between the lens assembly 10 and the photosensitive assembly 30 is the smallest as a retracted position, when the lens assembly 10 is in a non-operating state (may also be referred to as a retracted state, a folded state, a housed state, a retracted state, etc.); the present application defines a position of the lens assembly 10 away from the photosensitive assembly 30 at which the distance is the largest as an extended position, and the lens assembly 10 is in an extended state (may also be referred to as an ejected state, an extended state, etc.), and the camera module 1 is in an operating state. Of course, the lens assembly 10 may also stay in a position between the extended position and the retracted position, i.e. the lens assembly 10 may remain in its position during extension while the extension part progresses, which is also referred to as an intermediate extended position, where the camera module 1 is operated, and where the camera module 1 is in an operating state. The number of the intermediate extended positions is not particularly limited, for example, one intermediate extended position, three intermediate extended positions, and the like, so as to realize that the camera module 1 operates in different operating states under a plurality of focal lengths.

The lens assembly 10 has an optical axis, and when the lens assembly 10 is in a non-working state, the distance between the lens assembly 10 and the photosensitive assembly 30 along the optical axis direction is small, and the overall length of the camera module 1 is small, so that the camera module 1 is conveniently accommodated in an electronic device with extremely limited space.

When the lens assembly 10 is in a working state, the optical total length of the optical system formed by the lens assembly 10 and the photosensitive assembly 30 is increased, a longer focal length can be realized during optical design, and the longer focal length is beneficial to improving the performance of the optical system and the optical blurring effect beyond the depth of field, wherein the optical blurring effect is more real and surprised than the algorithm blurring effect, and because the optical blurring effect is completely different according to the distance of an actual scene, no error occurs due to the complexity of the scene, the embodiment of the application increases the focal length by designing the lens assembly 10 to be away from the photosensitive assembly 30, so as to realize the imaging effect with higher definition and reality.

As shown in fig. 2A to 4, in one embodiment of the present application, the lens assembly 10 includes a lens driving module 12 and an optical lens 11 mounted to the lens driving module 12, and an electrical connection assembly 13, wherein the optical lens 11 is held on a photosensitive path of the photosensitive assembly 30 for receiving imaging light from a subject and allowing the imaging light to reach the photosensitive assembly 30 along the photosensitive path. The optical lens 11 has an optical axis, and the optical axis of the optical lens 11 is the optical axis of the lens assembly 10. The optical lens 11 includes a lens group 111 and a lens barrel 112, the lens group 111 is accommodated in the lens barrel 112 in the optical axis direction, and the photosensitive member 30 is disposed opposite to the optical lens 11 in the direction of the optical axis of the optical lens 11, wherein the optical axis of the optical lens 11 is also the optical axis of the lens group 111, that is, an axis passing through the geometric center point of the lens group 111 in the arrangement direction of the first lens. For convenience of description, a side of the optical lens 11 facing the object is taken as an object side, a side of the optical lens 11 facing the photosensitive element 30 is taken as an image side, and the optical axis direction includes a direction along the optical axis toward the image side (abbreviated as an image side direction in the present application) and a direction along the optical axis toward the object side (abbreviated as an object side direction in the present application).

The optical lens 11 is mounted on the lens driving module 12, and the lens driving module 12 drives the optical lens 11 to translate in the Z-axis direction to adjust the distance between the optical lens 11 and the photosensitive assembly 30, so as to implement an optical focusing function, and/or drives the optical lens 11 to translate in the X-axis and Y-axis directions so as to implement an optical anti-shake function. In the embodiment of the application, the X-axis direction and the Y-axis direction are perpendicular to each other, the Z-axis direction is perpendicular to the plane in which the X-axis direction and the Y-axis direction are located, in other words, the X-axis, the Y-axis and the Z-axis form a three-dimensional coordinate system, the XOY plane in which the X-axis direction and the Y-axis direction are located is also called the plane in which the horizontal direction is located, and the Z-axis approaches to the optical focusing/zooming or the direction parallel to the optical axis. The electrical connection assembly 13 is electrically connected to the lens driving module 12 and the photosensitive assembly 30 to conduct the circuit of the lens assembly 10.

As shown in fig. 2A, 2B and 3A to 3C, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122 and at least one lens driving unit 123. The fixed carrier 121 has a receiving cavity to receive the movable carrier 122 and the lens driving unit 123, and the lens driving unit 123 is disposed between the fixed carrier 121 and the movable carrier 122 such that the lens driving unit 123 is adapted to drive the movable carrier 122 to move relative to the fixed carrier 121. The optical lens 11 is fixed to the movable carrier 122, such that the movable carrier 122 is driven to move relative to the fixed carrier 121 by the lens driving unit 123, and the lens driving module 12 is adapted to drive the optical lens 11 to move, for example, the lens driving module 12 drives the optical lens 11 to move along the optical axis thereof to realize a focusing function; and/or the lens driving module 12 drives the optical lens 11 to translate along the direction perpendicular to the optical axis thereof or drives the optical lens 11 to rotate around the direction perpendicular to the optical axis thereof to realize the anti-shake function.

Further, the lens driving module 12 further includes a suspension assembly 124 and a lens conductive assembly 125, and the suspension assembly 124 and the lens conductive assembly 125 are accommodated in the accommodating cavity of the fixed carrier 121. The suspension assembly 124 is disposed between the fixed carrier 121 and the movable carrier 122, and the movable carrier 122 is suspended in the fixed carrier 121 by the suspension assembly 124. The lens conductive component 125 provides a driving power for the lens driving unit 123, so that the lens driving unit 123 drives the movable carrier 122 to move relative to the fixed carrier 121.

In some embodiments of the present application, the lens driving module 12 further includes a lens position sensing component (not shown) for acquiring the position information of the optical lens 11, so as to generate feedback for the process of driving the optical lens 11 by the lens driving module 12.

The fixed carrier 121 includes an upper cover 1211 and a base 1212, where the upper cover 1211 and the base 1212 are fastened together to form a receiving cavity to receive each component of the lens driving module 12, so as to protect each component of the lens driving module 12 from being damaged due to impact, and reduce dust, dirt or stray light entering the lens driving module 12. Further, the upper cover 1211 and the base 1212 are provided with openings corresponding to the optical lens 11 so that light reflected by the object can reach the photosensitive assembly 30 after passing through the optical lens 11.

The lens driving module 12 may be a voice coil motor, a piezoelectric motor, an SMA (shape memory alloy) motor, or the like. When the lens driving module 12 is a voice coil motor, the lens driving unit 123 is a coil-magnet pair; when the lens driving module 12 is a piezoelectric motor, the lens driving unit 123 is a piezoelectric element; when the lens driving module 12 is an SMA motor, the lens driving unit 123 is an SMA wire. In one embodiment of the present application, the lens driving module 12 is a voice coil motor, the lens driving unit 123 is a coil-magnet pair, specifically, as shown in fig. 3A to 3C, the lens driving unit 123 includes at least one driving magnet 1231 and at least one driving coil 1232, the at least one driving magnet 1231 and the at least one driving coil 1232 are disposed opposite to each other, the driving coil 1232 is energized to generate a magnetic field, and the lens driving unit 123 drives the movable carrier 122 to move relative to the fixed carrier 121 by the magnetic field force between the driving coil 1232 and the driving magnet 1231.

In the embodiment shown in fig. 3A, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122, a lens driving unit 123, a lens conductive assembly 125 and a suspension assembly 124. The lens driving unit 123 of the lens driving module 12 includes at least one driving magnet 1231 and at least one driving coil 1232 disposed opposite to the at least one driving magnet 1231, the at least one driving magnet 1231 is fixed on the movable carrier 122, and the at least one driving coil 1232 is fixed on the fixed carrier 121. In other embodiments of the present application, the at least one driving magnet 1231 may also be fixed to the fixed carrier 121, and the at least one driving coil 1232 is fixed to the movable carrier 122 opposite to the at least one driving magnet 1231. In other words, at least one driving magnet 1231 is fixed to one of the movable carrier 122 or the fixed carrier 121, and at least one driving coil 1232 is disposed opposite to the at least one driving magnet 1231 and fixed to the other of the movable carrier 122 or the fixed carrier 121. In the present application, the number of the at least one driving magnet 1231 may be one, which is disposed on one side of the lens driving module 12, and in other embodiments, the number of the at least one driving magnet 1231 may be plural, and the plurality of driving magnets 1231 may be disposed on one side or multiple sides of the lens driving module 12.

The lens conductive component 125 is electrically connected to at least one driving coil 1232, and provides a driving power for the at least one driving coil 1232. In one specific example, the lens conductive assembly 125 is fixed to the fixing carrier 121, and the at least one driving coil 1232 is fixed to the lens conductive assembly 125, so that the at least one driving coil 1232 is fixed to the fixing carrier 121.

The suspension assembly 124 includes at least three balls 1241, the at least three balls 1241 are disposed on two sides of the lens driving unit 123, and the movable carrier 122 can be supported on an inner side surface of the fixed carrier 121 through the at least three balls 1241, so as to realize smooth sliding of the movable carrier 122, for example, the movable carrier 122 is suitable for moving in the optical axis direction relative to the fixed carrier 121 under the driving of the lens driving unit 123, so as to realize a focusing function. Further, the suspension assembly 124 further includes a magnetic attraction member (not shown) provided to the fixed carrier 121 and attracted to the driving magnet 1231 provided to the movable carrier 122, so that the movable carrier 122 is attracted to the fixed carrier 121 by the magnetic attraction force. In other embodiments of the present application, the suspension assembly 124 may also be a spring or other element such as a suspension wire.

In the embodiment shown in fig. 3B, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122, a lens driving unit 123, a lens conductive assembly 125 and a suspension assembly 124. The lens driving unit 123 includes at least two driving magnets 1231 and at least two driving coils 1232 disposed opposite to the at least two driving magnets 1231, the at least two driving magnets 1231 being fixed to the movable carrier 122, the at least two driving coils 1232 being fixed to the fixed carrier 121. In other embodiments of the present application, at least two driving magnets 1231 may be fixed to the fixed carrier 121, and at least two driving coils 1232 are fixed to the movable carrier 122 opposite to the at least two driving magnets 1231. In other words, at least two driving magnets 1231 are fixed to one of the movable carrier 122 or the fixed carrier 121, and at least two driving coils 1232 are disposed opposite to the at least two driving magnets 1231 and fixed to the other of the movable carrier 122 or the fixed carrier 121. In a specific example, the number of the driving magnets 1231 is two, the number of the driving coils 1232 is also two, the two driving magnets 1231 are disposed at two adjacent sides of the lens driving module 12, and the two driving coils 1232 are disposed opposite to the two driving magnets 1231, so that the lens driving unit 123 can drive the movable carrier 122 to move in a direction perpendicular to the optical axis relative to the fixed carrier 121, and an anti-shake function is implemented.

The lens conductive component 125 is electrically connected to at least two driving coils 1232, and provides driving power for the at least two driving coils 1232. In one specific example, the lens conductive assembly 125 is fixed to the fixing carrier 121, and at least two driving coils 1232 are fixed to the lens conductive assembly 125, so that at least two driving coils 1232 are fixed to the fixing carrier 121.

The suspension assembly 124 includes at least three balls 1241, the at least three balls 1241 are disposed between a bottom surface of the movable carrier 122 and a top surface of the fixed carrier 121, and the movable carrier 122 is supported on the top surface of the fixed carrier 121 by the at least three balls 1241, so as to realize smooth sliding of the movable carrier 122, for example, the movable carrier 122 is adapted to move in a direction perpendicular to the optical axis relative to the fixed carrier 121 under the driving of the lens driving unit 123, so as to realize an anti-shake function.

In the embodiment shown in fig. 3C, the lens driving module 12 includes a fixed carrier 121, a movable carrier 122, a lens driving unit 123, a lens conductive assembly 125 and a suspension assembly 124. The movable carrier 122 includes a first movable carrier 1221 and a second movable carrier 1222, the second movable carrier 1222 is provided inside the first movable carrier 1221, and the optical lens 11 is fixed to the second movable carrier 1222; the lens driving unit 123 includes three driving magnets of a first driving magnet 1231a, a second driving magnet 1231b, and a third driving magnet 1231c, and three driving coils of a first driving coil 1232a, a second driving coil 1232b, and a third driving coil 1232c, the first driving magnet 1231a being fixed to the first movable carrier 1221, the first driving coil 1232a being disposed opposite to the first driving magnet 1231a and fixed to the fixed carrier 121, the second driving magnet 1231b being fixed to the second movable carrier 1222, the second driving coil 1232b being disposed opposite to the second driving magnet 1231b and fixed to the first movable carrier 1221, the third driving magnet 1231c being disposed adjacent to the second driving magnet 1231b, the third driving magnet 1231c being fixed to the second movable carrier 1222, and the third driving coil 1232c being disposed opposite to the third driving magnet 1231c and fixed to the first movable carrier 1221.

The second driving magnet 1231b and the second driving coil 1232b drive the second movable carrier 1222 to move along a first direction perpendicular to the optical axis relative to the first movable carrier 1221, and the third driving magnet 1231c and the third driving coil 1232c drive the second movable carrier 1222 to move along a second direction perpendicular to the optical axis and the first direction relative to the first movable carrier 1221, so that the lens driving module 12 drives the optical lens 11 to realize the anti-shake function; the first driving magnet 1231a and the second driving magnet 1231b drive the first movable carrier 1221 to move along the optical axis relative to the fixed carrier 121, so that the second movable carrier 1222 moves along the optical axis direction together with the first movable carrier 1221, and thus, the lens driving module 12 drives the optical lens 11 to realize the focusing function.

The lens conductive assembly 125 includes three conductive units of a first conductive unit 1251, a second conductive unit 1252, and a third conductive unit 1253, the first conductive unit 1251 is electrically connected with the first driving coil 1232a and supplies the first driving coil 1232a driving power, the second conductive unit 1252 is electrically connected with the second driving coil 1232b and supplies the second driving coil 1232b driving power, and the third conductive unit 1253 is electrically connected with the third driving coil 1232c and supplies the third driving coil 1232c driving power.

Suspension assembly 124 includes a first suspension member 1242 and a second suspension member 1243. The first suspension member 1242 includes at least three balls 1241, and the at least three balls 1241 are disposed between the fixed carrier 121 and the first movable carrier 1221, and the first movable carrier 1221 is supported on the inner side surface of the fixed carrier 121 by the first suspension member 1242, so that friction force when the first movable carrier 1221 moves along the optical axis relative to the fixed carrier 121 is reduced. The second suspension member 1243 includes at least three balls 1241, and the at least three balls 1241 are disposed between the bottom surface of the second movable carrier 1222 and the top surface of the first movable carrier 1221, and the second movable carrier 1222 is supported on the top surface of the first movable carrier 1221 by the second suspension member 1243, so that friction force when the second movable carrier 1222 moves relative to the first movable carrier 1221 in a plane perpendicular to the optical axis is reduced.

Further, with continued reference to fig. 3A to 3C, when the lens driving module 12 is a voice coil motor, at least one driving magnet 1231 and at least one driving coil 1232 opposite to the at least one driving magnet 1231 are adopted as the lens driving unit 123, wherein the number of the at least one driving coils 1232 may be identical or different from the number of the at least one driving magnet 1231, and the application is not limited thereto. In one embodiment of the present application, at least one driving magnet 1231 is disposed on one side of the lens driving module 12, as shown in fig. 3A; in another embodiment of the present application, at least two driving magnets 1231 are disposed on two sides of the lens driving module 12, as shown in fig. 3B; in still another embodiment of the present application, at least three driving magnets 1231 are provided on three sides of the lens driving module 12; of course, in other embodiments of the present application, the number of the at least one driving magnets 1231 may be greater than three, and at least four driving magnets 1231 are disposed on four sides of the lens driving module 12. Thus, different functions of the lens driving module 12 are realized through different magnet numbers and magnet positions.

As shown in fig. 4 and 9A, the lens assembly 10 further includes an electrical connection assembly 13, and the electrical connection assembly 13 electrically connects the lens driving module 12 and the circuit board 31, so that the lens driving module 12 can obtain the driving power through the circuit board 31.

Specifically, the electrical connection assembly 13 is disposed between the lens driving module 12 and the circuit board 31, the electrical connection assembly 13 includes a first electrical connection portion 131, the first electrical connection portion 131 includes a first movable end 1311, a first fixed end 1313, and a first deformation portion 1312 connecting the first movable end 1311 and the first fixed end 1313, the first deformation portion 1312 is electrically connected to the first movable end 1311 and the first fixed end 1313, and the first electrical connection portion 131 is electrically connected to the lens driving module 12 through the first movable end 1311 and is electrically connected to the circuit board 31 through the first fixed end 1313. The first electrical connection portion 131 is fixed to the circuit board 31 through the first fixed end 1313, the first electrical connection portion 131 is fixed to the lens driving module 12 through the first movable end 1311, the first deformation portion 1312 is made of a material suitable for deformation, when the lens driving module 12 is driven by the telescopic assembly 20 to move, the first movable end 1311 moves along with movement of the lens driving module 12, the first deformation portion 1312 between the first movable end 1311 and the first fixed end 1313 deforms, and therefore the movement of the lens driving module 12 is affected by resistance of the first electrical connection portion 131 to be reduced, and the first electrical connection portion 131 is not easily damaged in movement of the lens driving module 12.

In one embodiment of the present application, the first deforming portion 1312 is a flexible circuit board that is bent, so that the resistance of the first electrical connecting portion 131 to the lens driving module 12 is reduced by increasing or decreasing the degree of bending of the first deforming portion 1312 during the movement of the lens driving module 12 relative to the circuit board 31. Thus, the first electrical connection portion 131 may be entirely constituted by a flexible circuit board that is easily bendable; the flexible printed circuit board can also be composed of a flexible printed circuit board which can only be partially bent.

Further, the electrical connection assembly 13 further includes a second electrical connection portion 132, specifically, the second electrical connection portion 132 is disposed between the lens driving module 12 and the circuit board 31, the second electrical connection portion 132 includes a second movable end portion 1321, a second fixed end portion 1323, and a second deformation portion 1322 connecting the second movable end portion 1321 and the second fixed end portion 1323, the second deformation portion 1322 is electrically connected to the second movable end portion 1321 and the second fixed end portion 1323, the second electrical connection portion 132 is electrically connected to the lens driving module 12 through the second movable end portion 1321, and is electrically connected to the circuit board 31 through the second fixed end portion 1323. The second electrical connection portion 132 is fixed to the circuit board 31 through the second fixed end portion 1323, the second electrical connection portion 132 is fixed to the lens driving module 12 through the second movable end portion 1321, the second deformation portion 1322 is made of a material suitable for deformation, when the lens driving module 12 is driven by the telescopic assembly 20 to move, the second movable end portion 1321 moves along with movement of the lens driving module 12, the second deformation portion 1322 between the second movable end portion 1321 and the second fixed end portion 1323 deforms, so that the movement of the lens driving module 12 is affected by the resistance of the second electrical connection portion 132 to be reduced, and the second electrical connection portion 132 is not easily damaged in the movement of the lens driving module 12.

In one embodiment of the present application, the second deformation portion 1322 is a flexible circuit board that is bent, so that the resistance of the second electrical connection portion 132 to the lens driving module 12 is reduced by increasing or decreasing the degree to which the second deformation portion 1322 is bent during the movement of the lens driving module 12 relative to the circuit board 31. Thus, the second electrical connection portion 132 may be entirely constituted by a flexible wiring board that is easily bent; the flexible printed circuit board can also be composed of a flexible printed circuit board which can only be partially bent.

In one embodiment of the present application, the first and second electrical connection parts 131 and 132 are disposed at both sides of the lens driving module 12, respectively, thereby reducing the number of circuits in the first electrical connection part 131 that need to be conducted between the lens driving module 12 and the circuit board 31. As the width of the first electrical connection portion 131 increases, the resistance of the first electrical connection portion 131 to the movement of the lens driving module 12 increases sharply, and by adding the second electrical connection portion 132, the width of the first electrical connection portion 131 can be designed to be narrower, particularly the first deformation portion 1312 connecting the first movable end portion 1311 and the first fixed end portion 1313 can be designed to be narrower, so that the influence of the resistance of the first electrical connection portion 131 to the movement of the lens driving module 12 can be further reduced. Likewise, the width of the second electrical connection 132 may also be designed to be narrower for similar reasons, i.e. the widths of both the first electrical connection 131 and the second electrical connection 132 may be designed to be narrower.

In a specific example, the first electrical connection portion 131 and the second electrical connection portion 132 are disposed on opposite sides of the lens driving module 12, for example, the first electrical connection portion 131 is disposed on the second side 102 of the lens driving module 12 and the second electrical connection portion 132 is disposed on the fourth side 104 of the lens driving module 12.

As shown in fig. 2A and 2B, in one embodiment of the present application, the photosensitive assembly 30 includes a circuit board 31, a photosensitive chip 32 electrically connected to the circuit board 31, and at least one electronic component (not shown). The photosensitive chip 32 is used for receiving the external light collected by the lens assembly 10 for imaging and is electrically connected with external mobile electronic equipment through the circuit board 31. In one embodiment of the present application, the electronic component may be one or more of passive electronic devices such as resistors and capacitors, and active electronic devices such as a driving chip and a memory chip, and the electronic component may be electrically connected to the front surface of the circuit board 31 or may be electrically connected to the back surface of the circuit board 31, depending on the design requirements of the camera module 1. The photosensitive chip 32 is directly or indirectly fixed to the circuit board 31, the photosensitive chip 32 includes a photosensitive area and a non-photosensitive area, and the photosensitive chip 32 is electrically connected to the circuit board 31 through a chip pad located in the non-photosensitive area.

In one embodiment of the application, the wiring board 31 may be implemented as a printed circuit board (Printed Circuit Board, PCB), a reinforced flexible circuit board (Flexible Printed Circuit, FPC), or a rigid-flex board. The circuit board 31 includes a circuit board body 311, a connecting band 312 and a connector 313. The connection tape 312 connects and electrically connects the wiring board body 311 and the connector 313, so that the connection tape 312 transmits imaging information acquired from the photosensitive chip 32 by the wiring board body 311 to an external mobile electronic device through the connector 313. For convenience of description, the camera module 1 includes a first side 101, a second side 102, a third side 103, and a fourth side 104 in a clockwise direction, and in a specific example of the present application, the connection strap 312 is disposed on the fourth side 104 of the camera module 1.

The reinforced flexible circuit board comprises a flexible circuit board and a reinforcing plate 314, wherein the flexible circuit board is arranged in a laminated mode, the reinforcing plate 314 is arranged below the flexible circuit board, the reinforcing plate 314 can be implemented as a steel sheet, and the steel sheet can be used for reinforcing the strength of the flexible circuit board and improving the heat dissipation performance of the photosensitive assembly 30. In a specific example, the circuit board body 311 further has a circuit board through hole 3110 concavely formed therein, the reinforcing plate 314 is fixed on the lower surface of the circuit board body 311 by, for example, bonding, and the reinforcing plate 314 and the circuit board body 311 form a mounting cavity for accommodating the photosensitive chip 32, so that the influence of the thickness of the circuit board body 311 on the thickness of the photosensitive assembly 30 is avoided, and the height of the camera module 1 is reduced.

Further, the photosensitive assembly 30 further includes a filter element 33, and the filter element 33 is held on the photosensitive path of the photosensitive chip 32 for filtering the incident light entering the photosensitive chip 32. In a specific example, the photosensitive assembly 30 further includes a filter element holder 34, the filter element 33 is mounted and fixed on the filter element holder 34 and corresponds to at least a photosensitive area of the photosensitive chip 32, the filter element 33 may be forward-attached or reverse-attached to the filter element holder 34, and the filter element holder 34 has a light-passing hole, so that the incident light passing through the lens assembly 10 may be incident on the photosensitive chip 32 through the light-passing hole of the filter element holder 34.

In particular, as shown in fig. 5 to 10B, in one embodiment of the present application, the telescopic assembly 20 is configured to drive the camera module 1 to switch between an active state and an inactive state. When the camera module 1 is in a working state, the lens assembly 10 is driven to move along the object side direction, and the lens assembly 10 is driven to extend; when the camera module 1 is in the non-working state, the lens assembly 10 is driven to move along the image side direction, and at this time, the lens assembly 10 is driven to retract to the original position, so that the overall height of the camera module 1 is reduced. It can be understood that when the image capturing module 1 is in the working state, the focal plane of the optical lens 11 is located on the imaging surface of the photosensitive chip 32, and when the image capturing module 1 is in the non-working state, the focal plane of the optical lens 11 is located at the image side of the imaging surface of the photosensitive chip 32.

More specifically, the telescopic assembly 20 drives the lens assembly 10 to move linearly, and the linear movement direction can be along the image side direction, the object side direction or the oblique direction intersecting the optical axis (as long as there is a certain movement component in the optical axis direction), so as to drive the lens assembly 10 to move along the optical axis direction relative to the photosensitive assembly 30. Optionally, the telescopic assembly 20 drives the lens assembly 10 to move unidirectionally along the image side direction, unidirectionally along the object side direction, or reciprocally along the image side direction and the object side direction. When the telescopic assembly 20 drives the lens assembly 10 to move linearly, the lens assembly 10 drives the optical lens 11 to approach or depart from the photosensitive assembly 30 along the optical axis direction, and the distance between the lens assembly 10 and the photosensitive assembly 30 changes, so as to realize optical focusing of the camera module 1 and improve the imaging quality of the camera module 1.

It should be noted that, the lens assembly 10 is driven to perform linear motion by the telescopic assembly 20, the linear motion process is simple, and the power generated by the telescopic assembly 20 can be efficiently transmitted to the lens assembly 10, and the driving device has the characteristics of simple driving structure, high driving force transmission efficiency and the like.

As shown in fig. 5 and 6A, in one embodiment of the present application, the telescopic assembly 20 includes a housing 21, an ejecting module 22, a telescopic driving module 23 and a sleeve module 24, wherein the housing 21 has a receiving cavity for receiving the ejecting module 22, the telescopic driving module 23, the sleeve module 24 and other components of the telescopic assembly 20. The sleeve module 24 is connected to the lens assembly 10 in a manner including, but not limited to, a fixed connection or a movable connection, wherein the fixed connection includes, but is not limited to, welding, screwing, clamping connection, bonding, etc.; the articulation includes, but is not limited to, abutment of the sleeve module 24 with the lens assembly 10 in a direction, which is not limited to an image-side direction or an object-side direction, etc. The ejector module 22 cooperates with the telescoping drive module 23 to drive the sleeve module 24 and lens assembly 10 in a single pass extension, single pass retraction, or back and forth motion.

In particular, in one embodiment of the present application, the image capturing module 1 drives the optical lens 11 to move by two driving modules having different driving advantages, so as to meet the requirement of the image capturing module 1 on optical performance. The telescopic driving module 23 selects a driver capable of generating a larger driving stroke to meet the requirement of the camera module 1 on the focusing stroke; the lens driving module 12 selects a driver with higher driving precision to meet the requirement of the camera module 1 on focusing precision and/or optical anti-shake, so as to improve the imaging quality of the camera module 1.

In a specific example of the present application, the telescopic driving module 23 is implemented as a stepper motor 2311, and the lens driving module 12 is implemented as a voice coil motor, it should be understood that the telescopic driving module 23 may be another type of driver capable of providing a longer driving stroke, for example: the piezoelectric motor is not limited to the present application. Likewise, the lens driving module 12 may be another type of driver with high driving precision, for example: the memory alloy motor is not limited to this. For convenience of explanation and understanding, the image pickup module 1 of the present embodiment is described in the present application by taking the example that the telescopic driving module 23 is implemented as the stepping motor 2311 and the lens driving module 12 is implemented as the voice coil motor.

As shown in fig. 5, the pop-up module 22 and the telescopic driving module 23 are configured to drive the camera module 1 to switch between an operating state and a non-operating state. When the image pickup module 1 is in the non-operating state, the lens assembly 10 is driven by the telescopic driving module 23 to linearly move toward the image side direction, and the distance between the lens assembly 10 and the photosensitive assembly 30 in the optical axis direction decreases; when the image capturing module 1 is in an operating state, the lens assembly 10 is driven by the pop-up module 22 to move linearly toward the object side, and the distance between the lens assembly 10 and the photosensitive assembly 30 in the optical axis direction increases.

Further, when the camera module 1 is in a working state, the pop-up module 22 and the telescopic driving module 23 are matched with each other, and the lens assembly 10 moves towards the object side under the action of the pop-up module 22 so as to realize preliminary focusing of the camera module 1; the lens driving module 12 drives the optical lens 11 to move continuously along the optical axis direction and/or move vertically to the optical axis direction, so as to realize precise focusing and/or optical anti-shake of the image capturing module 1. It can be understood that, in the present application, the preliminary focusing means that the lens driving module 12 moves to the first position along the optical axis direction together with the optical lens 11 under the action of the ejecting module 22, so that the photosensitive chip 32 can image; the precise focusing means that the distance from the optical lens 11 to the photosensitive chip 32 is adjusted according to the change of the focal point under the action of the lens driving module 12, and the optical lens 11 moves to the second position along the optical axis direction, so that the object keeps clear imaging.

As shown in fig. 6A and 6B, in one embodiment of the present application, the housing 21 includes a cover 211 and a base 212, where the cover 211 and the base 212 can be fastened together to form a receiving cavity to receive each component (including, but not limited to, the pop-up module 22, the telescopic driving module 23 and the holding module 26) in the camera module 1, so as to not only protect each component of the camera module 1, but also prevent each component of the camera module 1 from falling off or being damaged due to external impact; but also can prevent dust, dirt and the like from entering the inside of the camera module 1. The base 212 includes a base body 2121 and a base structure 2122, wherein the base structure 2122 is disposed on the base body 2121 to strengthen the base body 2121. In a specific example of the present application, the base structure 2122 is integrally formed to the base body 2121 through an Insert molding (Insert molding) process, so that not only the strength of the base body 2121 can be reinforced, but also an increase in the height of the base 212 can be avoided. Of course, in another specific example of the present application, the base structure 2122 may be fixed to the base body 2121 by other methods such as bonding, welding, etc., which is not limited by the present application. In the present application, the base 212 is fixed to the circuit board 31 of the photosensitive assembly 30, for example, in a specific example of the present application, the circuit board 31 is reversely attached to the bottom surface of the base body 2121 to fixedly connect the base 212 and the circuit board 31. It should be understood that in the present application, the cover 211 and the base 212 are both fixed parts or relatively fixed parts, i.e. the cover 211 and the base 212 remain stationary during operation of the telescopic assembly 20.

As shown in fig. 5 and fig. 7A to fig. 7B, in one embodiment of the present application, the pop-up module 22 is disposed between the lens assembly 10 and the photosensitive assembly 30, the pop-up module 22 is disposed at the image side of the lens assembly 10, and the lens assembly 10 is driven by the pop-up module 22 to linearly move toward the object side, wherein the pop-up module 22 includes a support base 221 and an elastic member 222, the support base 221 is fixed to the photosensitive assembly 30, and in particular, the support base 221 is disposed on a circuit board 31 of the photosensitive assembly 30, and the support base 221 is supported by the circuit board 31; one end of the elastic member 222 is connected to the supporting base 221, and the other end of the elastic member 222 is connected to the lens assembly 10, i.e., the elastic member 222 is clamped between the supporting base 221 and the lens assembly 10, and the lens assembly 10 is driven by the ejecting module 22 to move toward the object side of the optical axis.

As shown in fig. 7A, in one embodiment of the present application, the elastic member 222 may include at least one spring 2221, and the at least one spring 2221 may push the lens assembly 10 toward the movable sleeve 241 of the sleeve module 24. For example, in a specific example of the present application, the elastic member 222 includes four springs 2221, and the four springs 2221 are respectively disposed at four corners of the support base 221 to provide a smoother force to the lens assembly 10, avoiding tilting when the lens assembly 10 is pushed to move by the elastic force of the elastic member 222. Of course, in another specific example of the present application, the elastic member 222 may also include one spring 2221, two springs 2221, three springs 2221, etc., which the present application is not limited to. It is understood that the elastic member 222 may have other elastic structures, such as a spring plate, etc., which is not limited by the present application.

The sleeve module 24 is fixed to the telescopic driving module 23, and the sleeve module 24 is driven by the telescopic driving module 23 to move along the optical axis. When the camera module 1 is in the non-working state, the telescopic driving module 23 drives the sleeve module 24 to move towards the image side along the optical axis, the sleeve module 24 is abutted against the lens assembly 10 to generate an abutting force, the lens assembly 10 moves towards the image side along the optical axis under the action of the abutting force, the distance between the lens assembly 10 and the photosensitive assembly 30 is reduced, the elastic member 222 is in a compressed state between the lens assembly 10 and the supporting base 221, and at the moment, the elastic force of the elastic member 222 is accumulated; when the camera module 1 is in the working state, the telescopic driving module 23 drives the sleeve module 24 to move along the optical axis towards the object side, the abutting force between the sleeve module 24 and the lens assembly 10 disappears, at this time, the elastic force generated when the elastic member 222 is compressed is released, the lens assembly 10 moves along the optical axis towards the object side under the action of the elastic force, the distance between the lens assembly 10 and the photosensitive assembly 30 becomes large, and the elastic member 222 is in an extended state between the lens assembly 10 and the supporting base 221.

In one embodiment of the present application, the support base 221 has at least one spring receiving groove 2211 disposed at a corner thereof, the position and number of the at least one spring receiving groove 2211 corresponds to the position and number of the at least one spring 2221, one end of the at least one spring 2221 is disposed in the at least one spring receiving groove 2211, and when the at least one spring 2221 is compressed, the at least one spring 2221 can be compressed into the at least one spring receiving groove 2211, so that the distance between the lens assembly 10 and the photosensitive assembly 30 along the optical axis direction is minimized. In a specific example of the present application, the number of the spring receiving grooves 2211 is four, and the four spring receiving grooves 2211 are respectively disposed at four corners of the support base 221.

In one embodiment of the present application, the support base 221 further comprises a base body 2212 and a support member 2213, wherein in one embodiment of the present application, the support member 2213 is integrally formed on the base body 2212 through an Insert molding (Insert molding) process, and in another embodiment of the present application, the support member 2213 is fixed on the base body 2212 through an adhesive, welding, embedding, etc. manner, so as to increase the strength of the base body 2212 through the support member 2213.

Specifically, the base body 2212 has a spring through hole 22120, and the support member 2213 includes a support portion 22131 and a connection portion 22132, wherein the spring through hole 22120 and the support portion 22131 form the spring receiving groove 2211. That is, the support portion 22131 of the support 2213 is exposed in the spring through hole 22120 of the base body 2212, and the spring 2221 is supported and fixed by the support portion 22131 of the support 2213. It is understood that the positions and the number of the spring through holes 22120 and the supporting parts 22131 correspond to the positions and the number of the springs 2221. In a specific example of the present application, the number of the spring through holes 22120 and the supporting parts 22131 is four, and they are respectively disposed at four corners of the supporting base 221. The connection portion 22132 of the support 2213 connects the support portion 22131 of the support 2213 to enhance the strength of the base body 2212.

More specifically, in one embodiment of the present application, the support portion 22131 of the support 2213 further includes a support protrusion 221311, the support protrusion 221311 integrally extends from the support portion 22131 toward the object side direction, and the support protrusion 221311 has an outer diameter smaller than the aperture of the elastic member 222 so that the support protrusion 221311 may protrude into the elastic member 222 to prevent displacement of the elastic member 222 in the horizontal direction when compressed.

As shown in fig. 7A, in an embodiment of the application, the lens driving module 12 further includes at least one protruding pillar 12122 formed on the substrate 1212, the at least one protruding pillar 12122 extends from the substrate 1212 towards the image side and is opposite to the at least one spring accommodating groove of the ejecting module 22, and the at least one spring 2221 is sleeved on the at least one protruding pillar 12122 and abuts against the substrate, and the protruding pillar 12122 is configured to reduce the deformation of the spring 2221 in the direction perpendicular to the expansion direction during the expansion process. The number of the at least one protruding columns 12122 is identical to the number of the at least one spring 2221, in one embodiment of the present application, the number of the at least one protruding columns 12122 is four, the four protruding columns 12122 extend downwards from four corners of the base 1212 and are opposite to the four spring 2221 accommodating grooves 2211 of the support base 221, and the four springs 2221 are respectively sleeved on the four protruding columns 12122 and abut against the base 1212 and the support base 221.

As shown in fig. 7B, in another embodiment of the present application, the elastic member 222 may include a pair of oppositely disposed magnetic elements 2222, wherein one magnetic element of the pair of magnetic elements 2222 is disposed on the supporting base 221, the other magnetic element of the pair of magnetic elements 2222 is disposed on the lens assembly 10, and two magnetic elements of the pair of magnetic elements 2222 repel each other. When the camera module 1 is in the non-working state, the telescopic driving module 23 drives the sleeve module 24 to move towards the image side along the optical axis direction, the sleeve module 24 is abutted against the lens assembly 10, the lens assembly 10 moves towards the image side along the optical axis direction under the action of the abutting force, the distance between the lens assembly 10 and the photosensitive assembly 30 is reduced, the distance between the pair of magnetic pieces 2222 is reduced, and the repulsive force between the pair of magnetic pieces 2222 is increased; when the camera module 1 is in the working state, the telescopic driving module 23 drives the sleeve module 24 to move towards the object side direction along the optical axis direction, the abutting force between the sleeve module 24 and the lens assembly 10 disappears, at this time, the lens assembly 10 moves towards the object side direction along the optical axis direction under the action of the repulsive force between the pair of magnetic members 2222, and the distance between the lens assembly 10 and the photosensitive assembly 30 becomes larger.

Further, in this embodiment, there are two pairs of the magnetic elements 2222, and each pair of the magnetic elements 2222 is disposed on the support base 221 and the lens assembly 10, respectively, and each pair of the magnetic elements 2222 is mutually exclusive. Of course, it is understood that the magnetic element 2222 may have three pairs, four pairs, etc., which is not limited by the present application, so as to provide a smoother force to the lens assembly 10, and avoid tilting when the lens assembly 10 is pushed to move by the elastic force of the elastic member 222.

As shown in fig. 5, 6A, 6B and 9A, in one embodiment of the present application, the telescopic driving module 23 is disposed on the base 212. Specifically, the telescopic driving module 23 is disposed on the first side 101 of the camera module 1, that is, the telescopic driving module 23 is disposed on the opposite side of the connecting belt 312 of the circuit board 31, and in a specific example of the present application, the telescopic driving module 23 is disposed on the side of the base 212 located on the first side 101 to provide a sufficient placement position for the photosensitive assembly 30.

In one embodiment of the present application, the telescopic driving module 23 includes a driving assembly 231 and a transmission assembly 232, the driving assembly 231 is used for generating driving force, and the transmission assembly 232 connects the driving assembly 231 and the sleeve module 24 to transmit the driving force generated by the driving assembly 231 to the sleeve module 24 and further to the lens assembly 10.

Specifically, in one embodiment of the present application, the transmission mechanism includes a gear device 2322 coupled to the power output end of the driving assembly 231, a transmission screw 2323 engaged with the gear device 2322, and a transmission portion 2324 engaged with the transmission screw 2323, and the transmission portion 2324 is drivingly coupled to the sleeve module 24. The gear 2322 includes at least one gear coupled to the power output end of the driving assembly 231, and the at least one gear is coupled to the driving screw 2323. It will be appreciated that the number of gears of the gear arrangement 2322 is not limiting of the application.

Further, an external thread is disposed on the driving screw 2323, the driving portion 2324 is disposed with an internal thread, and the external thread of the driving screw 2323 is meshed with the internal thread of the driving portion 2324. When the stepper motor 2311 receives the electric pulse signal, at least one gear of the gear device 2322 coupled to the driving assembly 231 rotates with the gear, and the at least one rotated gear drives the driving screw 2323 to rotate, so as to drive the driving portion 2324 engaged with the driving screw 2323 to move, and further drive the sleeve module 24 coupled to the driving portion 2324 to move, in this way, the driving force of the driving assembly 231 is transmitted to the sleeve module 24, so as to drive the sleeve module 24 to move towards the image side direction or the object side direction along the optical axis direction.

It should be appreciated that in one embodiment of the application, as shown in FIG. 6B, the drive 2324 has a threaded bore formed therein, and the drive screw 2323 is drivingly coupled within the threaded bore. When the drive screw 2323 rotates, the drive screw 2323 drives the drive portion 2324 to move along the direction of the optical axis, and drives the sleeve module 24 coupled to the drive portion 2324 to move along the direction of the optical axis. The transmission screw 2323 is movably connected with the transmission part 2324 through threads, so that the self-locking function of the telescopic assembly 20 can be realized, namely, when the transmission screw 2323 rotates, the transmission part 2324 can be driven to move along the optical axis direction; after the driving screw 2323 stops rotating, the driving portion 2324 also stops moving, and due to the existence of the thread, the driving portion 2324 does not continue moving due to sliding friction, so that the driving portion 2324 is kept at a stable position, and the sleeve module 24 can be kept at a corresponding height stably, so as to realize the self-locking function of the telescopic assembly 20.

In a specific example of the present application, the transmission portion 2324 further includes a connection member 23241 extending toward the sleeve module 24, and the transmission portion 2324 is coupled to the sleeve module 24 through the connection member 23241, and in the present application, the connection manner of the connection member 23241 and the sleeve module 24 includes, but is not limited to, fitting, bonding, welding, and the like. It should be noted that, in this specific example, the materials of the driving screw 2323 and the driving portion 2324 are the same, for example, the materials of the driving screw 2323 and the driving portion 2324 are made of metal materials, or the materials of the driving screw 2323 and the driving portion 2324 are made of plastic materials, when the driving portion 2324 moves relative to the driving screw 2323, the inner walls of the threaded holes of the driving screw 2323 and the driving portion 2324 rub against each other, the wear resistance and the hardness of the different materials are greatly different, and chips are easy to be generated in the process of mutual friction, and the driving screw 2323 and the driving portion 2324 with the same materials can avoid the generation of chips in the process of friction.

In one embodiment of the application, the transmission assembly 232 further includes a protective member 2321, the protective member 2321 having a receiving cavity therein for receiving the gear arrangement 2322, the drive screw 2323 and the transmission portion 2324 therein. The protection member 2321 may also cover the gear device 2322, the drive screw 2323, and the transmission portion 2324 to protect the gear device 2322, the drive screw 2323, and the transmission portion 2324.

As shown in fig. 8A to 8C, the sleeve module 24 includes a movable sleeve 241, a sleeve driving member 243 and a limiting carrier 242, and the sleeve driving member 243 and the limiting carrier 242 are respectively fixed to the movable sleeve 241, and the fixing manner may be adhesion, welding, screwing, clamping, integral molding, etc. In one embodiment of the present application, the sleeve driving member 243 and the limiting carrier 242 are fixed to both ends of the movable sleeve 241, respectively, wherein the sleeve driving member 243 is fixed to the image side (i.e., the side close to the photosensitive assembly 30) of the movable sleeve 241, the limiting carrier 242 is fixed to the object side (i.e., the side far from the photosensitive assembly 30) of the movable sleeve 241, and the sleeve module 24 is fixed to the telescopic driving module 23 through the sleeve driving member 243.

From the object side to the image side, the movable sleeve 241 includes a sleeve top 2411, a sleeve connecting portion 2412, a sleeve step and a sleeve bottom 2414, and the sleeve top 2411, the sleeve connecting portion 2412, the sleeve step and the sleeve bottom 2414 are connected to each other and fixed to form a receiving cavity of the movable sleeve 241, and the sleeve driving member 243 and the limit carrier 242 are received and fixed in the movable sleeve 241. In one specific example of the present application, the sleeve top 2411, sleeve connection 2412, sleeve step and sleeve bottom 2414 are integrally connected.

With continued reference to fig. 8B, the sleeve stepped portion 2413 and the sleeve bottom portion 2414 are interconnected to form a transmission member mounting cavity 24140, and the sleeve transmission member 243 is mounted in the transmission member mounting cavity 24140, e.g., the sleeve transmission member 243 is mounted in the transmission member mounting cavity 24140 formed by the interconnection of the sleeve stepped portion 2413 and the sleeve bottom portion 2414 by being secured to the sleeve stepped portion 2413 or the sleeve bottom portion 2414. The sleeve top 2411 and the sleeve connection 2412 are connected to each other to form a lens assembly receiving cavity 24120, the lens assembly 10 is received in the lens assembly receiving cavity 24120, and an air gap exists between the lens assembly receiving cavity 24120 and the lens assembly 10 so that the lens assembly 10 can move in the lens assembly receiving cavity 24120. The lens assembly receiving cavity 24120 and the driver mounting cavity 24140 are in communication with each other to form a receiving cavity for the movable sleeve 241, wherein the lens assembly receiving cavity 24120 is located on the object side of the driver mounting cavity 24140 and the driver mounting cavity 24140 has a radial dimension greater than the lens assembly receiving cavity 24120 such that the driver mounting cavity 24140 can receive other components such as the sleeve driver 243 in addition to the lens assembly 10 and allow the lens assembly 10 to move therein. The sleeve step portion 2413 is fixedly connected to the sleeve connecting portion 2412, and the outer side of the sleeve step portion 2413 forms a sleeve step surface 24131 of the sleeve step portion 2413, the sleeve step surface 24131 being opposite to the top surface of the cover 211. Note that, in the present application, the radial dimension refers to a dimension in the optical axis direction of the optical lens 11 of the perpendicular lens assembly 10.

The sleeve top 2411 and the sleeve bottom 2414 further have a through hole, respectively, so that the lens assembly 10 obtains light reflected by the object located at the object side through the through hole of the sleeve top 2411, and transmits the collected light to the photosensitive assembly 30 located at the image side through the through hole of the sleeve bottom 2414.

With continued reference to fig. 6B and 8A, the sleeve drive 243 is fixedly coupled to the drive portion 2324 of the drive assembly 232, such as by bonding, welding, threading, clamping, integral molding, or the like, such that the telescoping drive module 23 drives movement of the sleeve module 24 through a fixed relationship between the drive portion 2324 and the sleeve drive 243. In one embodiment of the present application, the sleeve driving member 243 may be made of metal, so as to provide a strong structural strength. In a specific example of the present application, the sleeve driving member 243 has an annular structure surrounding the circumference of the lens assembly 10, the sleeve driving member 243 has a connecting hole 2431 and at least one guide rod through hole 2430, and the sleeve driving member 243 is fixed to the driving member of the driving portion 2324 through the connecting hole 2431, so that the sleeve module 24 is fixed to the telescopic driving module 23 through the sleeve driving member 243. The function of the at least one guide rod through hole 2430 is further set forth in the following description.

With continued reference to fig. 7A-8B, the spacing carrier 242 is accommodated in the lens assembly accommodation cavity 24120, which is disposed between the sleeve top 2411 and the lens assembly 10, the spacing carrier 242 has at least one spacing image side surface 24220, and the at least one spacing image side surface 24220 is opposite to the lens driving module 12, such that the spacing carrier 242 is adapted to abut against the lens driving module 12 through the at least one spacing image side surface 24220. In one embodiment of the present application, the front projection of the at least one limiting image side surface 24220 in the direction of the optical axis at least partially overlaps with the front projection of the lens driving module 12 in the direction of the optical axis.

The limiting carrier 242 includes a carrier main body 2421, and at least one limiting protrusion 2422 and a cover plate supporting portion 2423 fixed on the carrier main body 2421, wherein the at least one limiting protrusion 2422 extends from the carrier main body 2421 to the image side, the limiting image side surface 24220 is formed on the image side of the limiting protrusion 2422, the cover plate supporting portion 2423 extends inwardly from the carrier main body 2421, and the light transmitting cover plate 40 is fixed on the cover plate supporting portion 2423. The fixing manner includes, but is not limited to, adhesion, welding, integral molding, and the like.

In one embodiment of the present application, the limit protrusion 2422 protrudes from the image side of the carrier body 2421, such that the limit carrier 242 is adapted to abut against the lens assembly 10 through the limit protrusion 2422; the cover support 2423 protrudes inside the carrier body 2421, and the cover support 2423 is used for supporting the transparent cover 40 further included in the camera module 1, i.e. the transparent cover 40 is fixed on the limiting carrier 242 by being fixed on the cover support 2423. As shown in fig. 2A, 2B and 7B, the transparent cover 40 covers the optical lens 11, the transparent cover 40 has a cover image side 400, the cover image side 400 is opposite to the optical lens 11, and the transparent cover 40 is used for protecting the lens assembly 10 and is suitable for transmitting light for imaging. Wherein, the distance between the cover image side 400 and the limiting image side 24220 is greater than the height of the optical lens 11 protruding from the lens driving module 12 (i.e. the distance between the cover image side 400 and the limiting image side 24220 is greater than the distance between the top surface of the optical lens 11 and the top surface of the upper cover 1211), so when the limiting carrier 242 abuts against the top surface of the lens driving module 12, an air gap exists between the cover image side 400 of the light-transmitting cover 40 and the top surface of the optical lens 11, so as to avoid the occurrence of impact. In one specific example, the distance between the cover image side surface 400 and the stop image side surface 24220 is at least 0.15mm greater than the height of the optical lens 11 protruding from the lens driving module 12, thereby providing a distance for the lens driving module 12 to drive the optical lens 11 to move toward the object side along the optical axis.

The height of the lens assembly 10 is limited by the limiting protrusion 2422, when the limiting protrusion 2422 abuts against the lens assembly 10, a certain air gap exists between the optical lens 11 and the transparent cover plate 40, and no collision occurs between the optical lens 11 and the transparent cover plate 40. Specifically, during the process of extending or retracting the lens assembly 10, the limiting carrier 242 may abut against the upper cover 1211 of the lens driving module 12 through the limiting protrusion 2422, so as to avoid the impact between the optical lens 11 and the light-transmitting cover plate 40. For example, in the non-operating state, the sleeve module 24 abuts against the upper cover 1211 of the lens driving module 12 through the limiting protrusion 2422 of the limiting carrier 242, so that the lens assembly 10 cannot move toward the object side. It should be noted that, the limiting carrier 242 does not have to be abutted against the lens assembly 10 at any time, the limiting carrier 242 may be abutted against the lens assembly 10 at any time, or the limiting carrier 242 may be abutted against the lens assembly 10 at some time, depending on the structural design of the telescopic assembly 20, but the setting of the limiting protrusion 2422 can effectively protect the optical lens 11 from striking the light-transmitting cover plate 40. In one embodiment of the present application, the limit carrier 242 includes four limit protrusions 2422 and has four limit image sides 24220, and the four limit protrusions 2422 protrude from the carrier body 2421 to have uniform lengths, and the four limit image sides 24220 have uniform heights, so that the horizontal arrangement of the lens assembly 10 is maintained when the limit protrusions 2422 are abutted against the lens assembly 10.

With continued reference to fig. 8B, in the non-operating state, the bottom surface of the lens assembly 10 is lower than the bottom surface of the sleeve module 24, so that the lens assembly 10 can be brought as close to the photosensitive assembly 30 as possible in the non-operating state, and the height of the image capturing module 1 can be reduced.

In another embodiment of the present application, as shown in fig. 8C, the limiting carrier 242 further includes at least one pressing portion 2424, and the at least one pressing portion 2424 extends from the carrier body 2421 towards the image side and is fixed to the carrier body 2421 by, for example, bonding, integral molding, etc. The upper cover 1211 of the lens driving module 12 has at least one pressing opening 12110 corresponding to the at least one pressing portion 2424, and the size of the pressing opening 12110 is larger than that of the pressing portion 2424, so that the at least one pressing portion 2424 is adapted to extend toward the movable carrier 122 through the pressing opening 12110. When the camera module 1 is in the non-working state, the telescopic driving module 23 drives the sleeve module 24 to move towards the image side, the sleeve module 24 is abutted against the upper cover 1211 of the lens driving module 12 through at least one limiting convex part 2422 of the limiting carrier 242, and at least one pressing part 2424 is abutted against the movable carrier 122 of the lens driving module 12, so that the movable carrier 122 is limited to move towards the object side, and the impact between the optical lens 11 and the light-transmitting cover plate 40 is avoided. In a specific example, the limit carrier 242 includes four pressing portions 2424 extending from the carrier body 2421 toward the image side, the upper cover 1211 of the lens driving module 12 has four pressing openings 12110 corresponding to the four pressing portions 2424, and the sizes of the four pressing openings 12110 are respectively larger than the sizes of the corresponding four pressing portions 2424, so that the four pressing portions 2424 are adapted to extend toward the movable carrier 122 through the pressing openings 12110.

In one embodiment of the present application, the at least one pressing portion 2424 extends toward the first movable carrier 1221 of the movable carrier 122 fixed to the optical lens 11, and abuts against the first movable carrier 1221 when the sleeve module 24 moves toward the image side, so as to limit the movement of the first movable carrier 1221 toward the object side, and avoid the collision between the optical lens 11 and the transparent cover 40.

With further reference to fig. 2A-2B, and 9A-9B, retraction assembly 20 further includes a securing assembly 252 and a retaining module 26. The fixing member 252 is fixed to the photosensitive member 30, and it is understood that the fixing member 252 may be directly fixed to the photosensitive member 30 or indirectly fixed to the photosensitive member 30. In a specific example of the present application, the fixing member 252 is fixed to the supporting base 221 by, for example, bonding, and the supporting base 221 is fixed to the photosensitive member 30 by, for example, bonding, i.e., the fixing member 252 is fixed to the supporting base 221 to be indirectly fixed to the photosensitive member 30. The holding module 26 is disposed at one side of the lens assembly 10, and the holding module 26 includes a first holding member 261 and a second holding member 262, the first holding member 261 being fixed to one of the fixing assembly 252 and the lens assembly 10, the second holding member 262 being fixed to the other of the fixing assembly 252 and the lens assembly 10, and a force (magnetic attraction or magnetic repulsion) generated between the first holding member 261 and the second holding member 262 causing the lens assembly 10 to be held at one side of the telescopic assembly 20. In a specific example of the present application, the first holding member 261 is provided to the lens assembly 10, the second holding member 262 is provided to the fixing assembly 252, the second holding member 262 is provided opposite to the first holding member 261, and in a specific example of the present application, the first holding member 261 and the second holding member 262 may attract each other to generate a force (magnetic attraction force) perpendicular to the optical axis; in another specific example of the present application, the first holding member 261 and the second holding member 262 may repel each other to generate a force (magnetic repulsive force) perpendicular to the optical axis.

Specifically, in one embodiment of the present application, the height dimension of the first holding member 261 is smaller than the height dimension of the second holding member 262, i.e., the height dimension of the second holding member 262 is larger than the height dimension of the first holding member 261, so that the force between the first holding member 261 and the second holding member 262 can be maintained larger when the lens assembly 10 is driven by the telescopic assembly 20.

More specifically, in one embodiment of the present application, the first holding member 261 includes a magnet portion 2611, and the second holding member 262 includes a yoke portion 2621 disposed opposite to the magnet portion 2611, and a force (magnetic attraction force) perpendicular to the optical axis is generated by magnetic attraction between the magnet portion 2611 and the yoke portion 2621. The magnet portion 2611 is fixed to one of the lens assembly 10 or the fixing assembly 252, the yoke portion 2621 is fixed to the other of the lens assembly 10 or the fixing assembly 252, and the magnet portion 2611 and the yoke portion 2621 are magnetically attracted to each other, so that the holding module 26 holds the lens assembly 10 on one side of the telescopic assembly 20 by magnetic attraction, and thus, when the camera module 1 is assembled, the position of the lens assembly 10 can be kept stable during alignment of the lens assembly 10 and the photosensitive assembly 30, when the lens assembly 10 is driven to move by the telescopic assembly 20, the lens assembly 10 is not easy to shake relative to the telescopic assembly 20, and the offset of the optical axis of the lens assembly 10 relative to the center of the photosensitive assembly 30 is reduced, so that the lens assembly 10 is aligned with the photosensitive assembly 30 during movement along the optical axis. In one embodiment of the present application, the first holding member 261 further includes a magnetic conductive portion 2612, wherein the magnetic conductive portion 2612 is fixed on a side of the magnet portion 2611 away from the yoke portion 2621, that is, the magnet portion 2611 is disposed between the yoke portion 2621 and the magnetic conductive portion 2612, and the magnetic conductive portion 2612 is adapted to enhance a magnetic field of the magnet portion 2611 facing the yoke portion 2621, and to increase a magnetic attraction force between the magnet portion 2611 and the yoke portion 2621. In the present application, the yoke portion 2621 may be a member that can be attracted to a magnet, such as an iron piece.

In one embodiment of the present application, the direction of the magnetic attraction force generated between the magnet portion 2611 and the yoke portion 2621 is perpendicular to the optical axis direction, and the magnetic attraction force causes the lens assembly 10 to be held at one side of the telescopic assembly 20; in another embodiment of the present application, an included angle between a direction of magnetic attraction force generated between the magnet portion 2611 and the yoke portion 2621 and an optical axis direction is an acute angle, and a component force of the magnetic attraction force in a direction perpendicular to the optical axis direction causes the lens assembly 10 to be held at one side of the telescopic assembly 20.

In one embodiment of the present application, the height dimension of the yoke portion 2621 is larger than the height dimension of the magnet portion 2611 in the moving direction (i.e., the optical axis direction) of the lens assembly 10, so that the magnetic attraction force between the magnet portion 2611 and the yoke portion 2621 can be maintained larger when the lens assembly 10 is driven by the telescopic assembly 20. Further, in the moving direction of the lens assembly 10, the height dimension of the yoke portion 2621 is greater than or equal to the sum of the height of the magnet portion 2611 and the moving stroke of the lens assembly 10, so that the magnetic attraction force between the magnet portion 2611 and the yoke portion 2621 can be maintained at a maximum when the lens assembly 10 is driven by the telescopic assembly 20.

In a specific example of the present application, the magnet portion 2611 is fixed to the lens assembly 10, and the yoke portion 2621 is fixed to the fixing assembly 252, so that the lens assembly 10 needs to set the magnet portion 2611 at a small position, and the size of the magnet portion 2611 does not need to be set large, so that the driving force required when the telescopic assembly 20 drives the lens assembly 10 to move is not excessively large. Specifically, the lens driving module 12 of the lens assembly 10 has a magnet groove 12121 formed on the substrate 1212 of the fixing carrier 121, and the magnet portion 2611 is fixed in the magnet groove 12121 opposite to the yoke portion 2621 fixed to the fixing assembly 252. By disposing the magnet portion 2611 in the magnet recess 12121, the size of the image pickup module 1 is reduced; the fixing unit 252 includes a yoke mounting portion 2523, and the yoke portion 2621 is fixed to the yoke mounting portion 2523, and the yoke mounting portion 2523 may be a recess to reduce the overall size of the camera module 1.

In another specific example of the present application, the magnet portion 2611 is fixed to the fixing member 252, and the yoke portion 2621 is fixed to the lens assembly 10, so that the driving force required when the telescopic member 20 drives the lens assembly 10 to move is not excessively large.

It should be noted that, when the lens driving module 12 is a voice coil motor, the magnet portion 2611 is preferably disposed on a side of the lens assembly 10 where the driving magnet 1231 is not disposed, that is, on a different side of the lens assembly 10 from the at least one driving magnet 1231 of the lens assembly 10, that is, on a different side of the lens assembly 10 from the at least one driving magnet 1231 and the first holding member 261 (holding module 26), regardless of whether the magnet portion 2611 is fixed to the lens assembly 10 or the fixing member 252. For example, the magnet portion 2611 is fixed to the first side 101 of the lens assembly 10, and at least one driving magnet 1231 is provided to at least one of the second side 102, the third side 103, and the fourth side 104 of the lens assembly 10. If the magnet portion 2611 is disposed on the same side as the at least one driving magnet 1231, the magnetic field of the magnet portion 2611 affects the operation between the driving magnet 1231 and the driving coil 1232. In one embodiment of the present application, the magnet portion 2611 is fixed to the lens driving module 12, and at least one driving magnet 1231 and the magnet portion 2611 are disposed on different sides of the lens assembly 10.

Referring to fig. 9A to 9B, the telescopic assembly 20 further includes a supporting module 27, the supporting module 27 is located between the lens assembly 10 and the fixing assembly 252 to reduce friction force applied to the lens assembly 10 during movement, the supporting module 27 is disposed on one side of the lens assembly 10, and the holding module 26 is disposed on one side of the lens assembly 26, wherein the holding module 26 generates a force perpendicular to the optical axis so that the lens assembly 10 is supported by the supporting module 27 on the fixing assembly 252 during linear movement, i.e. the lens assembly 10 is supported on the fixing assembly 252 by the supporting module 27. Wherein the holding module 26 and the supporting module 27 are located on the same side or opposite sides of the lens assembly 10, the supporting module 27 is clamped between the lens assembly 10 and the fixing assembly 252. In one embodiment of the present application, the support module 27 and the holding module 26 (the first holding member 261 and the second holding member 262) are disposed on the same side of the lens assembly 10, and the support module 27 is clamped between the lens assembly 10 and the fixing assembly 252 by the magnetic attraction force between the magnet portion 2611 and the yoke portion 2621.

In one embodiment of the present application, the support module 27 includes at least three balls 271, the at least three balls 271 being disposed between the lens assembly 10 and the fixing assembly 252, and the lens assembly 10 being supported to the fixing assembly 252 by the at least three balls 271. Further, the support module 27 further includes at least one inner ball groove 272 formed on an outer side surface of the lens assembly 10 and at least one outer guide rail 273 formed on an inner side surface of the fixing member 252, and the at least one inner ball groove 272 and the at least one outer guide rail 273 are disposed opposite to each other and sandwich the at least three balls 271. In a specific example, the inner ball groove 272 is formed on the outer side surface of the fixed carrier 121 of the lens driving module 12.

In one embodiment of the present application, the at least one outer guide rail 273 includes a first guide rail 2731 and a second guide rail 2732, the at least one inner ball groove 272 includes a first ball groove 2721, a second ball groove 2722, a third ball groove 2723, and a fourth ball groove 2724, and the at least three balls include a first ball 2711, a second ball 2712, a third ball 2713, and a fourth ball 2714. Wherein, the first guide rail 2731 and the second guide rail 2732 are formed on the inner side surface of the fixing assembly 252 and distributed on two sides of the yoke portion 2621, the first ball groove 2721 and the second ball groove 2722 are opposite to the first guide rail 2731, the third ball groove 2723 and the fourth ball groove 2724 are opposite to the second guide rail 2732, the first ball 2711 is disposed in the first ball groove 2721, the second ball 2712 is disposed in the second ball groove 2722, the third ball 2713 is disposed in the third ball groove 2723, and the fourth ball 2714 is disposed in the fourth ball groove 2724. The first guide rail 2731 and the second guide rail 2732 extend in parallel with the moving direction of the lens assembly 10, and the lens assembly 10 is moved in the optical axis direction by the first guide rail 2731 and the second guide rail 2732.

In one embodiment of the present application, at least three balls 271 are secured in at least one inner ball groove 272, the at least three balls 271 sliding relative to at least one outer guide rail 273. In another embodiment of the present application, the at least three balls 271 may be replaced with at least three sliding blocks formed on the outer side surface of the lens assembly 10 opposite to the at least one outer guide rail 273, and the lens assembly 10 is supported on the fixing member 252 by the at least three sliding blocks and slides on the at least one outer guide rail 273 to reduce friction resistance.

As shown in fig. 10A and 10B, in order to limit the maximum extension stroke of the lens assembly 10, and reduce the risk of the lens assembly 10 colliding with the sleeve module 24 when the sleeve module 24 is in the maximum extension state, the telescopic assembly 20 further includes a stop module 25, where the stop module 25 can limit the extension distance of the lens assembly 10.

The stopper module 25 includes a fixing member 252 and a stopper movable member 251, the fixing member 252 is fixed to the supporting base 221 by, for example, bonding, so as to be fixed to the photosensitive member 30, the stopper movable member 251 is fixed to at least one side of the lens assembly 10 and moves with the movement of the lens assembly 10, the stopper movable member 251 is blocked from moving toward the object side by abutment between the stopper movable member 251 and the fixing member 252, the lens assembly 10 moves toward the object side, so as to limit the continued extension of the lens assembly 10, limit the travel of the lens assembly 10 moving toward the object side, and limit the driving travel of the eject module 22. In one embodiment of the present application, the stopper movable assembly 251 extends outwardly (i.e., away from the optical axis) from the fixed carrier 121 of the lens driving module 12.

Specifically, the stop movable assembly 251 includes at least one stop extension 2511, the at least one stop extension 2511 integrally extends outwardly (i.e. away from the optical axis) from the base 1212 of the lens driving module 12, and the at least one stop extension 2511 protrudes from the base 1212; the fixing member 252 includes a fixing upper portion 2521 and a fixing lower portion 2522, wherein the fixing upper portion 2521 and the fixing lower portion 2522 are fixed by, for example, bonding, welding, fitting, integral molding, and the fixing lower portion 2522 is fixed to the supporting base 221 by, for example, bonding. The fixed upper portion 2521 has at least one stop surface 25210, the stop surface 25210 is uncovered by the fixed lower portion 2522, and the at least one stop extension 2511 is stopped by the fixed upper portion 2521 of the fixed assembly 252 by abutting against the at least one stop surface 25210, such that the extension stroke of the lens assembly 10 is limited.

In one embodiment of the present application, the at least one stop extension 2511 and the magnet portion 2611 are not located on the same side of the lens assembly 10, and the at least one stop surface 25210 and the yoke mounting portion 2523 are not located on the same side of the fixing assembly 252. In other words, when the magnet portion 2611 of the holding module 26 is disposed on the first side 101 of the lens assembly 10, the at least one stopper extension 2511 is disposed on one, two or three sides of the second side 102, the third side 103 and the fourth side 104 of the lens assembly 10. That is, the holding module 26 and the stopper movable assembly 251 are disposed at different sides of the lens assembly 10, thereby reducing interference of the holding module 26 and the stopper movable assembly 251.

In one embodiment of the present application, the inner diameter of the fixed upper portion 2521 is smaller than the inner diameter of the fixed lower portion 2522 in at least one direction perpendicular to the optical axis, such that at least one stop surface 25210 of the fixed upper portion 2521 is exposed, which is adapted to abut against at least one stop extension 2511. In one example, the securing assembly 252 has a stepped outer side.

In one embodiment of the present application, the fixed lower portion 2522 has at least one stop groove 25221, the number of the stop grooves 25221 is identical to the number of the stop extensions 2511, and the bottom surface of the fixed upper portion 2521 is not covered by the fixed lower portion 2522 by the arrangement of the stop grooves 25221 to form at least one stop surface 25210 of the fixed upper portion 2521.

In one embodiment of the present application, the number of stop extensions 2511 is three, and the three stop extensions 2511 integrally extend outwardly (i.e., away from the optical axis) from the second side 102, the third side 103, and the fourth side 104, respectively, of the base 1212 of the lens driving module 12. At this time, the magnet portion 2611 of the holding module 26 is disposed on the first side 101 of the lens driving module 12, and the holding module 26 and the three stopper extension portions 2511 are disposed on different sides of the lens assembly to prevent interference and reduce the overall size of the camera module. The fixed lower portion 2522 has three stopper grooves 25221 respectively located at the second side 102, the third side 103 and the fourth side 104, so that the bottom surface of the fixed upper portion 2521 is uncovered by the fixed lower portion 2522 at the second side 102, the third side 103 and the fourth side 104, forming three stopper surfaces 25210. The extension stroke of the lens driving module 12 is limited by three stop extensions 2511 being stopped by three stop surfaces 25210 of the fixing assembly 252, respectively.

It can be appreciated that, in one embodiment of the present application, the driving stroke of the pop-up module 22 is smaller than the driving stroke of the telescopic driving module 23, that is, the stroke of the pop-up module 22 pushing the lens assembly 10 to move is smaller than the stroke of the telescopic driving module 23 driving the sleeve module 24 to move, so that a certain gap is left between the lens assembly 10 and the sleeve module 24, and a certain space is provided for the lens driving module 12 to drive the optical lens 11 to translate along the Z-axis direction and/or translate along the X-axis and the Y-axis directions, so that the requirement of the camera module 1 on long focus is met, and the requirement of the camera module 1 on focusing precision and/or optical anti-shake is also met. The driving stroke of the pop-up module 22 is smaller than that of the telescopic driving module 23, so that the distance that the sleeve module 24 extends out of the lens assembly 10 is longer, and when the camera module 1 is in an operating state, the gap between the transparent cover plate 40 and the optical lens 11 of the lens assembly 10 is larger than that in a non-operating state, so that in the operating state, the telescopic assembly 20 provides a larger space for the lens driving module 12 of the lens assembly 10, the lens driving module 12 drives the optical lens 11 to focus along the optical axis direction, the lens driving module 12 is not easy to collide with the transparent cover plate 40, accordingly, when the camera module 1 is in the non-operating state, the distance between the transparent cover plate 40 and the optical lens 11 can be designed to be smaller, and when the camera module 1 is in the non-operating state, the height of the camera module 1 can be designed to be smaller.

Specifically, when the camera module 1 is in the non-operating state, the telescopic driving module 23 drives the sleeve module 24 to move toward the image side direction along the optical axis direction, the sleeve module 24 abuts against the lens driving module 12 of the lens assembly 10, the lens driving module 12 moves toward the image side direction along the optical axis direction under the action of the abutting force, the elastic member 222 is compressed under the action of the lens driving module 12, at this time, the elastic force of the elastic member 222 is accumulated, the stop movable assembly 251 of the stop module 25 moves toward the image side direction along the optical axis direction, and at this time, the stop movable assembly 251 and the fixed assembly 252 of the stop module 25 are separated from each other.

When the camera module 1 is in the working state, the telescopic driving module 23 drives the sleeve module 24 to move towards the object side direction along the optical axis direction, the abutting force between the sleeve module 24 and the lens assembly 10 disappears, the elastic force generated when the elastic member 222 is compressed is released, the lens driving module 12 moves towards the object side direction along the optical axis direction under the action of the elastic force, the stop movable assembly 251 of the stop module 25 moves towards the object side direction along the optical axis direction, and when the stop movable assembly 251 and the fixed assembly 252 of the stop module 25 abut against each other, the moving stroke of the stop movable assembly 251 is limited by the fixed assembly 252, so that the stop movable assembly 251 cannot move continuously, and the driving stroke of the pop-up module 22 is limited. Further, the telescopic driving module 23 continues to drive the sleeve module 24 to move towards the image side along the optical axis direction, so that a certain gap is generated between the sleeve module 24 and the lens driving module 12, so as to leave enough travel for the lens driving module 12 to drive the optical lens 11 to translate along the Z-axis direction and/or translate along the X-axis and Y-axis directions.

More specifically, in one embodiment of the present application, when the camera module 1 is in the inactive state, the driving component 231 of the telescopic driving module 23 drives the driving component 232 to move in the direction of the optical axis toward the image side, and the driving component 232 drives the sleeve module 24 to move in the direction of the optical axis toward the image side, during which the limit protrusion 2422 of the limit carrier 242 of the sleeve module 24 is always kept in abutment with the upper cover 1211 of the fixed carrier 121 of the lens driving module 12, the direction of the abutment force applied to the lens driving module 12 is toward the image side, the elastic member 222 is compressed under the action of the lens driving module 12, at this time, the elastic force of the elastic member 222 is accumulated, the stop movable component 251 of the stop module 25 moves in the direction of the image side in the direction of the optical axis, that is, the stop movable component 251 of the stop module 25 moves in the direction away from the fixed upper portion 2521 of the fixed component 252 of the stop module 25, and at this time, the stop movable component 251 and the fixed upper portion 2521 are separated from each other.

When the camera module 1 is in an operating state, the driving component 231 of the telescopic driving module 23 drives the driving component 232 to move towards the object side along the optical axis direction, the driving component 232 drives the sleeve module 24 to move towards the object side along the optical axis direction, in this process, the abutting force between the limiting convex part 2422 of the limiting carrier 242 of the sleeve module 24 and the upper cover 1211 of the fixed carrier 121 of the lens driving module 12 disappears, at this time, the elastic force generated when the elastic member 222 is compressed is released, the lens driving module 12 moves towards the object side along the optical axis direction under the action of the elastic force, and the stop movable component 251 of the stop module 25 also moves towards the object side along the optical axis direction under the action of the elastic force, namely, the stop movable component 251 of the stop module 25 moves towards the fixed upper part 2521 of the fixed component 252 close to the stop module 25, and when the stop movable component 251 and the fixed upper part 2521 are contacted with each other, the movement of the stop movable component 251 is blocked by the fixed upper part 2521, so that the stop movable component 251 cannot move continuously. Further, the driving component 231 of the telescopic driving module 23 continues to drive the transmission component 232 to move towards the object side along the optical axis direction, and the transmission component 232 continues to drive the sleeve module 24 to move towards the object side along the optical axis direction, so that a certain gap is generated between the limit protrusion 2422 of the limit carrier 242 of the sleeve module 24 and the upper cover 1211 of the fixed carrier 121 of the lens driving module 12, so as to allow enough travel for the lens driving module 12 to drive the optical lens 11 to translate along the Z-axis direction and/or translate along the X-axis and Y-axis directions. In one embodiment of the present application, when the sleeve module 24 moves to the farthest distance in the object side direction, the gap between the transparent cover 40 and the optical lens 11 is the largest, and at this time, the gap is greater than or equal to 0.5mm, so as to provide a sufficient moving space for the lens driving module 12 to drive the optical lens 11 to move along the optical axis in the object side direction.

In one embodiment of the present application, in order to make the sleeve module 24 move smoothly under the driving of the telescopic driving module 23, the telescopic assembly 20 further includes a guiding module 28, and the guiding module 28 may be used to guide the sleeve module 24 to move toward the image side direction or toward the object side direction along the optical axis direction. When the drive screw 2323 rotates, the transmission portion 2324 coupled to the drive screw 2323 drives the sleeve module 24 to move along the optical axis direction, and also to rotate around the drive screw 2323, and the guiding module 28 further can be used for preventing the sleeve module 24 from rotating around the drive screw 2323.

As shown in fig. 5 and 6A, in one embodiment of the present application, the guiding module 28 includes a first guiding member 281 and a second guiding member 282, wherein the first guiding member 281 is adjacent to the driving screw 2323 and mainly used for guiding the moving direction of the sleeve module 24; the second guide member 282 is disposed opposite to the first guide member 281, and is mainly used to prevent the sleeve module 24 from rotating during movement, and the first guide member 281 and the second guide member 282 cooperate to guide the sleeve module 24 to move smoothly in the optical axis direction. Wherein, one end of the first guiding member 281 may be fixed to the base 212, and the other end may be fixed to the housing; likewise, one end of the second guide member 282 may be fixed to the base 212 and the other end may be fixed to the housing in such a manner that the first guide member 281 and the second guide member 282 do not shake during the guiding process.

It will be appreciated that in one embodiment of the present application, the transmission portion 2324 further has a guiding through hole 23240, the first guiding member 281 is disposed through the guiding through hole 23240, and the transmission portion 2324 moves along the first guiding member 281 through the guiding through hole 23240 to guide the moving direction of the sleeve module 24. Further, a second guide member 282 is disposed through the guide rod through hole 2430 of the sleeve driving member 243 to prevent the sleeve module 24 from rotating during moving by the second guide member 282.

In one embodiment of the present application, the number of the first guiding members 281 is at least one, and at least one first guiding member 281 is disposed near the driving screw 2323, so that the structure of the telescopic assembly 20 is more compact; the number of the second guide members 282 is at least one, and at least one second guide member 282 is disposed at a corner of the base 212, and in a specific example of the present application, the number of the second guide members 282 is three, and each of the second guide members 282 is disposed at three corners of the base 212.

As shown in fig. 5, 6A and 8B, in one embodiment of the present application, the telescopic assembly 20 further includes a sealing member 29, the sealing member 29 connects the fixed cover 211 and the movable sleeve 241, wherein the sealing member 29 includes a first sealing fixing portion 291, a second sealing fixing portion 293, and a folded portion 292 disposed between the first sealing fixing portion 291 and the second sealing fixing portion 293. The first seal fixing portion 291 is fixed to the cover 211, the second seal fixing portion 293 is fixed to the movable sleeve 241 of the sleeve module 24, and the folded portion 292 connects the first seal fixing portion 291 and the second seal fixing portion 293. When the camera module 1 is in the working state, the movable sleeve 241 moves towards the object side direction under the drive of the telescopic module, so that the folding part 292 is in the contracted state; when the camera module 1 is in the non-operating state, the movable sleeve 241 is driven by the telescopic module to move toward the image side direction, so that the folded portion 292 is in the stretched state.

To allow for more flexible telescoping of the fold 292 of the seal 29, the fold 292 is made of a flexible material, such as rubber. The first and second seal fixing portions 291 and 293 may be made of the same material as the folded portion 292 or may be made of a different material from the folded portion 292, which is not limited to the present application.

In a specific example of the present application, the first and second seal-fixing portions 291, 293 are made of a flexible material, that is, the seal 29 is entirely made of a flexible material. For example, the first seal fixing portion 291, the second seal fixing portion 293 and the folded portion 292 may be made of rubber material, and in particular, the rubber integrated seal 29 may be formed by an injection molding process, so that the structure is simpler. In another specific example of the present application, the first and second seal fixing portions 291 and 293 are made of a material having a relatively high hardness. For example, the first and second seal fixing portions 291 and 293 are made of a metal material, and the folded portion 292 is made of a rubber material, which satisfies the flexibility of expansion and contraction of the seal 29 and improves the coupling stability between the seal 29 and the movable sleeve 241 and the cover 211.

It should be noted that, in one embodiment of the present application, the sealing member 29, the cover 211 and the movable sleeve 241 are connected to each other to form a closed space, and the telescopic assembly 20 and the lens assembly 10 of the camera module 1 are disposed in the closed space, that is, the sealing member 29 is used for sealing the camera module 1 to achieve the waterproof and dustproof effects.

It should be noted that the cover 211 further includes a vent hole 2110, the vent hole 2110 is formed on a side wall of the cover 211, the vent hole 2110 can be communicated with the inside and the outside of the camera module 1, and in the process of switching the camera module 1 between the working state and the non-working state, the gas can enter and exit the camera module 1 through the vent hole 2110, so that the internal and external air pressures of the camera module 1 are kept consistent. In an embodiment of the application, the housing 21 further includes a ventilation portion 213, and the ventilation portion 213 covers the ventilation hole 2110 of the cover 211, so that the ventilation portion 213 can filter the gas when the gas enters and exits the camera module 1, and prevent dust, particles and other impurities in the gas from entering the camera module 1. In a specific example of the present application, the air permeable portion 213 may be implemented as an air permeable film 2131.

As shown in fig. 11A to 11C, in another embodiment of the present application, the photosensitive assembly 30 of the camera module 1 protrudes from the telescopic assembly 20, that is, the bottom surface of the photosensitive assembly 30 and the bottom surface of the telescopic assembly 20 have a certain height difference, which can be said that the plane where the circuit board 31 of the photosensitive assembly 30 is located and the plane where the base 212 of the telescopic assembly 20 is located have a certain height difference. In a specific example of the present application, the photosensitive assembly 30 extends toward the image side, and the bottom surface of the photosensitive assembly 30 is lower than the bottom surface of the telescopic assembly 20 when viewed along the optical axis, which is also referred to as a plane of the circuit board 31 of the photosensitive assembly 30 is lower than a plane of the base 212 of the telescopic assembly 20. When the camera module 1 is configured in a mobile electronic device (e.g., a smart phone), by protruding the photosensitive assembly 30 from the telescopic assembly 20, the downward extending portion of the camera module 1 can extend into a motherboard (not shown) of the mobile electronic device, so that the photosensitive assembly 30 can pass through the motherboard of the mobile electronic device, such as a mobile phone, without occupying a height space of the telescopic assembly 20, thereby reducing a height dimension of the camera module 1 protruding from a surface of the mobile electronic device and reducing a thickness dimension of the electronic device.

Specifically, with continued reference to fig. 11A, the wiring board 31 of the photosensitive assembly 30 is indirectly fixed to the housing 21 of the telescopic assembly 20. In a specific example of the present application, the photosensitive assembly 30 is indirectly fixed to the base 212 of the telescopic assembly 20 through the stop module 25 and the ejecting module 22, so as to satisfy the structure that the photosensitive assembly 30 protrudes from the telescopic assembly 20. Specifically, the base 212 of the housing 21 is fixedly connected with the fixing component 252 of the stop module 25, the fixing component 252 of the stop module 25 is fixed to the supporting base 221 of the ejecting module 22, and the circuit board 31 of the photosensitive assembly 30 is fixedly connected with the supporting base 221 of the ejecting module 22, so that the circuit board 31 of the photosensitive assembly 30 is indirectly fixed to the base 212 of the housing 21.

Further, the photosensitive assembly 30 is lowered with respect to the base 212 of the housing 21 when viewed along the optical axis, so that the heights of the sleeve module 24, the stop module 25 and the eject module 22 of the telescopic assembly 20 can be further lowered with respect to the base 212. As can be seen from the foregoing, the sleeve module 24, the stop module 25 and the eject module 22 are directly or indirectly disposed on the circuit board 31 of the photosensitive assembly 30, and the height positions of the sleeve module 24, the stop module 25 and the eject module 22 are changed along with the change of the height position of the photosensitive assembly 30. By the arrangement, when the camera module 1 is in the non-working state, the movable sleeve 241 of the sleeve module 24 can be more contracted, that is, the part of the movable sleeve 241 protruding from the cover 211 is less, that is, the distance between the top surface of the sleeve top 2411 and the top surface of the cover 211 is smaller, so that the height of the camera module 1 protruding from the surface of the mobile electronic device in the non-working state can be reduced, and the appearance of the mobile electronic device (such as a smart phone) provided with the camera module 1 is more attractive.

As shown in fig. 11B and 11C, in one embodiment of the present application, the radial dimension of the photosensitive member 30 is smaller than the radial dimension of the telescopic member 20 in at least one direction perpendicular to the optical axis, that is, the radial dimension of the downward extending portion of the camera module 1 is smaller than the maximum outer diameter dimension of the telescopic module. When the camera module 1 is configured in a mobile electronic device (e.g., a smart phone), the radial dimension of the photosensitive assembly 30 is smaller than the radial dimension of the telescopic assembly 20, that is, the radial dimension of the portion of the camera module 1 extending downward is smaller, so that a smaller opening is provided at a position corresponding to a motherboard of the mobile electronic device, so that the area of a working area on the motherboard for setting a circuit can be larger.

More specifically, in a specific example of the present application, the radial dimension of the wiring board main body 311 of the wiring board 31 of the photosensitive assembly 30 in two directions perpendicular to the optical axis (for example, the X-axis direction and the Y-axis direction) is smaller than the radial dimension of the telescopic assembly 20 in two directions perpendicular to the optical axis (for example, the X-axis direction and the Y-axis direction). The photosensitive assembly 30 may extend downward and pass through the motherboard of the mobile electronic device, so as to reduce the height dimension of the camera module 1 protruding from the surface of the mobile electronic device.

Fig. 12A and 12B, fig. 13A and 13B illustrate a camera module 1 in still another embodiment of the present application, and the structure of the camera module 1 may be referred to above, unlike the above-described embodiment, the holding module 26 includes a first holding member 261 and a second holding member 262, the first holding member 261 is provided to the lens assembly 10, the second holding member 262 is provided to the fixing assembly 252, and in a specific example of the present application, the first holding member 261 and the second holding member 262 may attract each other to generate a force (magnetic attraction force) perpendicular to the optical axis; in another specific example of the present application, the first holding member 261 and the second holding member 262 may repel each other to generate a force (magnetic repulsive force) perpendicular to the optical axis.

More specifically, in one embodiment of the present application, the first holding member 261 includes a first magnet portion 2613, and the second holding member 262 includes a second magnet portion 2622 disposed opposite to the first magnet portion 2613, and magnetic repulsion between the first magnet portion 2613 and the second magnet portion 2622 generates a force (magnetic repulsive force) perpendicular to the optical axis. The first magnet portion 2613 is fixed to one of the lens assembly 10 or the fixing assembly 252, the second magnet portion 2622 is fixed to the other of the lens assembly 10 or the fixing assembly 252, and the first magnet portion 2613 and the second magnet portion 2622 repel each other, so that the lens assembly 10 is held at one side, and thus, the position of the lens assembly 10 can be kept stable during the alignment of the lens assembly 10 and the photosensitive assembly 30 when the camera module 1 is assembled, the lens assembly 10 is not easy to shake relative to the telescopic assembly 20 when the lens assembly 10 is driven to move by the telescopic assembly 20, and the offset of the optical axis of the lens assembly 10 relative to the center of the photosensitive assembly 30 is reduced, so that the lens assembly 10 is aligned with the photosensitive assembly 30 during the movement along the optical axis. In one embodiment of the present application, the magnetic poles of the opposing faces of the first and second magnet portions 2613 and 2622 are identical. In other words, the holding module 26 holds the lens assembly 10 on the opposite side of the telescopic assembly 20 from the holding module 26 by the magnetic repulsive force.

In one embodiment of the present application, the direction of the magnetic repulsive force generated between the first and second magnet portions 2613 and 2622 is perpendicular to the optical axis direction, so that the lens assembly 10 is held at one side of the telescopic assembly 20; in another embodiment of the present application, the direction of the magnetic repulsive force generated between the first and second magnet portions 2613 and 2622 forms an acute angle with the optical axis direction, and the component force of the magnetic repulsive force in the direction perpendicular to the optical axis causes the lens assembly 10 to be held at one side of the telescopic assembly 20.

Further, in an embodiment of the present application, the first holding member 261 further includes a first magnetic conductive portion 2614, and the second holding member 262 further includes a second magnetic conductive portion 2623, wherein the first magnetic conductive portion 2614 is disposed at a side of the first magnetic portion 2613 away from the second magnetic portion 2622, that is, the first magnetic portion 2613 is disposed between the second magnetic portion 2622 and the first magnetic conductive portion 2614; the second magnetically conductive portion 2623 is disposed on a side of the second magnet portion 2622 away from the first magnet portion 2613, that is, the second magnet portion 2622 is disposed between the first magnet portion 2613 and the second magnetically conductive portion 2623. The first and second magnetic conductive portions 2614 and 2623 are adapted to enhance a magnetic field in a direction opposite to the first and second magnet portions 2613 and 2622, and to enhance a magnetic repulsive force between the first and second magnet portions 2613 and 2622. In another embodiment of the present application, the holding module 26 may also include only the first magnetic conductive portion 2614 or only the second magnetic conductive portion 2623, which is not limited by the present application.

It is understood that in one embodiment of the present application, the first and second magnet portions 2613 and 2622 have different height dimensions in the moving direction (i.e., the optical axis direction) of the lens assembly 10. For example, in a specific example of the present application, the second magnet portion 2622 is provided to the fixing unit 252, the first magnet portion 2613 is provided to the lens assembly 10, and the height dimension of the second magnet portion 2622 is larger than the height dimension of the first magnet portion 2613, so that when the lens assembly 10 is driven by the telescopic unit 20, the magnetic repulsive force between the first magnet portion 2613 and the second magnet portion 2622 can be maintained larger, and the size and weight of the first magnet portion 2613 fixed to the lens assembly 10 can be designed smaller. Further, in the moving direction of the lens assembly 10, the height dimension of the second magnetite portion 2622 is greater than or equal to the sum of the height of the first magnetite portion 2613 and the moving stroke of the lens assembly 10, so that the magnetic repulsive force between the first magnetite portion 2613 and the second magnetite portion 2622 can be maintained to be maximum when the lens assembly 10 is driven by the telescopic assembly 20. Of course, in another specific example of the present application, the first magnet portion 2613 is disposed on the fixing unit 252, the second magnet portion 2622 is disposed on the lens assembly 10, and the height dimension of the first magnet portion 2613 is larger than that of the second magnet portion 2622, so that the magnetic repulsive force between the first magnet portion 2613 and the second magnet portion 2622 can be maintained larger when the lens assembly 10 is driven by the telescopic unit 20, which is not limited by the present application.

In one embodiment of the present application, the lens driving module 12 of the lens assembly 10 has a magnetite groove 12121 formed on the substrate 1212 of the fixed carrier 121, and the first magnetite portion 2613 or the second magnetite portion 2622 is disposed in the magnetite groove 12121; accordingly, the fixing member 252 may also have a magnet groove 12121, and the first magnet portion 2613 or the second magnet portion 2622 are disposed in the magnet groove 12121, so that the size of the image capturing module is reduced by disposing the first magnet portion 2613 and the second magnet portion 2622 in the magnet groove 12121.

It should be noted that, when the lens driving module is a voice coil motor, whether the first magnet portion 2613 and the second magnet portion 2622 are fixed to the lens assembly 10 or the fixing assembly 252, the first magnet portion 2613 and the second magnet portion 2622 are preferably disposed on a side of the lens assembly 10 where the driving magnet 1231 is not disposed, in other words, the first magnet portion 2613, the second magnet portion 2622 and at least one driving magnet 1231 of the lens assembly 10 are disposed on different sides of the lens assembly 10, i.e., the at least one driving magnet 1231 and the first holding member 261 (the holding module 26) are disposed on different sides of the lens assembly 10. For example, the first and second magnet portions 2613 and 2622 are fixed to the first side 101 of the lens assembly 10, and at least one driving magnet 1231 is provided on at least one of the second, third and fourth sides 102, 103 and 104 of the lens assembly 10. If the first and second magnet portions 2613 and 2622 are disposed on the same side as the at least one driving magnet 1231, the magnetic fields of the first and second magnet portions 2613 and 2622 affect the operation between the driving magnet 1231 and the driving coil 1232. In a specific example of the present application, the first magnet portion 2613 is fixed to the lens driving module 12, and at least one driving magnet 1231 and the first magnet portion 2613 are disposed on different sides of the lens assembly 10.

Referring further to fig. 13A to 12B, the telescopic assembly 20 further includes a supporting module 27, the supporting module 27 is disposed between the lens assembly 10 and the fixing assembly 252 to reduce friction force applied to the lens assembly 10 during movement, and the lens assembly 10 is supported on the fixing assembly 252 through the supporting module 27. In one embodiment of the present application, the support module 27 and the holding module 26 (the first holding member 261, the second holding member 262) are disposed at opposite sides of the lens assembly 10, such that the support module 27 is clamped between the lens assembly 10 and the fixing assembly 252 by repulsive force between the first magnet portion 2613 and the second magnet portion 2622. For example, the first magnet 2613 and the second magnet 2622 are provided on the first side 101 of the lens assembly 10, and the support module 27 is provided on the third side 103 of the lens assembly 10 opposite to the first side 101.

In one embodiment of the present application, the at least one outer guide rail 273 includes a first guide rail 2731 and a second guide rail 2732, the at least one inner ball groove 272 includes a first ball groove 2721, a second ball groove 2722, a third ball groove 2723, and a fourth ball groove 2724, and the at least three balls include a first ball 2711, a second ball 2712, a third ball 2713, and a fourth ball 2714. Wherein, the first guide rail 2731 and the second guide rail 2732 are formed on the inner side surface of the fixing assembly 252 and distributed on two sides of the yoke portion 262, the first ball groove 2721 and the second ball groove 2722 are opposite to the first guide rail 2731, the third ball groove 2723 and the fourth ball groove 2724 are opposite to the second guide rail 2732, the first ball 2711 is disposed in the first ball groove 2721, the second ball 2712 is disposed in the second ball groove 2722, the third ball 2713 is disposed in the third ball groove 2723, and the fourth ball 2714 is disposed in the fourth ball groove 2724. The first guide rail 2731 and the second guide rail 2732 extend in parallel with the moving direction of the lens assembly 10, and the lens assembly 10 is moved in the optical axis direction by the first guide rail 2731 and the second guide rail 2732.

To limit the maximum extension travel of the lens assembly 10, and reduce the risk of the lens assembly 10 colliding with the sleeve module 24 when the sleeve module 24 is in the maximum extension state under the driving of the eject module 22, the telescopic assembly 20 further includes a stop module 25, and the stop module 25 can limit the extension distance of the lens assembly 10.

The stopper module 25 includes a fixed component 252 and a stopper movable component 251, the fixed component 252 is fixed on the supporting base 221 by, for example, bonding, the stopper movable component 251 is fixed on the lens component 10 and moves along with the movement of the lens component 10, and by the abutment between the stopper movable component 251 and the fixed component 252, the stopper movable component 251 is blocked from moving towards the object side direction of the optical axis, the lens component 10 is blocked from moving towards the object side direction, thus limiting the continued extension of the lens component 10, limiting the travel of the lens component 10 towards the object side direction of the optical axis, and limiting the driving travel of the pop-up module 22. In one embodiment of the present application, the stopper movable assembly 251 extends outwardly (i.e., away from the optical axis) from the fixed carrier 121 of the lens driving module 12.

In one embodiment of the present application, the at least one stopper extension 2511 is not located on the same side of the lens assembly 10 as the support module 27 and the holding module 26 (the first holding member 261 and the second holding member 262). In other words, when the first magnet portion 2613 and the second magnet portion 2622 of the holding module 26 are disposed on the first side 101 of the lens assembly 10, the supporting module 27 is disposed on the third side 103 of the lens assembly 10 opposite to the first side 101, and the at least one stopper extension 2511 is disposed on one side or both sides of the second side 102 and the fourth side 104 of the lens assembly 10. That is, the holding module 26 and the stopper movable assembly 251 are disposed at different sides of the lens assembly 10, thereby reducing interference of the holding module 26 and the stopper movable assembly 251.

In one embodiment of the present application, the number of stop extensions 2511 is two, and the two stop extensions 2511 integrally extend outwardly (i.e., away from the optical axis) from the second and fourth sides 102, 104 of the base 1212 of the lens driving module 12, respectively. At this time, the first and second magnet portions 2613 and 2622 of the holding module 26 are provided on the first side 101 of the lens driving module 12, and the support module 27 is provided on the third side 103 of the lens assembly 10 opposite to the first side 101. The fixed lower portion 2522 has two stop recesses 25221 located at the second side 102 and the fourth side 104, respectively, such that the bottom surface of the fixed upper portion 2521 is uncovered by the fixed lower portion 2522 at the second side 102 and the fourth side 104, forming two stop surfaces 25210. The extension stroke of the lens driving module 12 is limited by the two stop surfaces 25210 of the fixing assembly 252 respectively stopping the two stop extensions 2511.

The other structures in the camera module 1 can refer to the content of the foregoing embodiments, and the disclosure is not repeated here.

The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims

1. A camera module, comprising:

a photosensitive assembly;

a telescoping assembly, comprising:

a fixing assembly fixed to the photosensitive assembly;

2. The camera module of claim 1, wherein the lens assembly comprises a lens drive module and an optical lens mounted to the lens drive module, the lens drive module comprising at least one drive magnet, at least one of the drive magnets being disposed on a different side of the lens assembly than the retention module.

3. The camera module according to claim 2, wherein the pop-up module includes a support base fixed to the photosensitive assembly, and an elastic member clamped between the support base and the lens assembly, the fixing assembly being fixed to the support base and thus to the photosensitive assembly.

4. A camera module according to claim 3, wherein the telescopic assembly comprises a support module, the holding module being located on the same side or opposite side of the lens assembly as the support module, the support module being clamped between the lens assembly and the fixed assembly.

5. The camera module of claim 4, wherein the first holding member includes a magnet portion, the second holding member includes a yoke portion, and the magnet portion and the yoke portion magnetically attract each other to generate a magnetic attraction force perpendicular to the optical axis so that the lens assembly is held on one side of the telescopic assembly, and the holding module and the supporting module are located on the same side of the lens assembly.

6. The camera module according to claim 5, wherein the magnet portion is fixed to the lens assembly, the yoke portion is fixed to the fixing assembly, and a height dimension of the yoke portion is larger than a height dimension of the magnet portion.

7. The camera module of claim 4, wherein the first holding member comprises a first magnet portion, the second holding member comprises a second magnet portion, and magnetic repulsion between the first magnet portion and the second magnet portion generates a magnetic repulsion force perpendicular to the optical axis so that the lens assembly is held on one side of the telescopic assembly, and the holding module and the supporting module are located on opposite sides of the lens assembly.

8. The camera module of claim 7, wherein the first magnet portion is fixed to the lens assembly and the second magnet portion is fixed to the fixing assembly, the second magnet portion having a height dimension that is greater than a height dimension of the first magnet portion.

9. The camera module of claim 4, wherein the telescoping assembly includes a stop module including a stop movable assembly and the fixed assembly, the stop movable assembly being secured to the lens assembly, the lens assembly being blocked from movement in an object-side direction of the optical axis by abutment between the stop movable assembly and the fixed assembly.

10. The camera module of any of claims 1-9, wherein the telescoping assembly comprises a housing comprising a cover and a base that snap-fit to each other to form a receiving cavity to receive the pop-up module, the telescoping drive module, and the retention module.