CN214252702U - Lens module - Google Patents

Abstract

The application discloses a lens module, which comprises a bearing part, a base, a driving assembly and a position sensor, wherein a main body of the bearing part is annular, and the bearing part is used for bearing a lens; the base comprises a main body part and a fixing part, the main body part is annular, an accommodating cavity matched with the bearing part is formed in the main body part, and the bearing part is arranged in the accommodating cavity; the side edge of the main body part is provided with a notch, and the fixing part is arranged on the side edge of the notch and is fixedly connected with the main body part; the bearing part is provided with a driving piece which protrudes from the notch; the driving component is fixedly arranged on the fixing part and drives the bearing part to move in the accommodating cavity by driving the driving part; the position sensor is used for sensing the position relation between the bearing part and the base. Through so setting up can make the camera lens module reduce the volume, save space to control more accurately, the precision is higher.

Description

Lens module

Technical Field

The application relates to the technical field of camera shooting, in particular to a lens module.

Background

With the development of the camera technology, the lens module is widely used in various camera devices, and the combination of the lens module and various portable electronic devices such as mobile phones, video cameras, computers, etc. is more popular among consumers.

The existing lens module generally comprises a lens component, a bearing part, a fixing part and a driving component, and the lens is generally circular, is convenient to manufacture and is not influenced in lens rotation when the focal length is adjusted and the focusing is carried out. The bearing part is used for bearing the lens assembly, the driving assembly is installed on the fixing part, and the bearing part is driven to move through the driving assembly so as to drive the lens to move or rotate to realize focusing or anti-shaking. However, the shapes and mounting forms of the fixing portion and the driving assembly in the conventional lens assembly make the volume of the lens module too large, which is not favorable for the miniaturization of the volume of the lens module. And the driving assembly is often controlled less precisely, so that the focusing or anti-shake precision of the lens is not high.

Content of application

This application aims at solving one of the technical problem that exists among the prior art at least, for this reason, this application provides a lens module, the lens module is small, and occupation space is littleer, does benefit to the miniaturization of camera equipment volume to drive assembly cooperation position sensor adjusts the position control of bearing part more accurately.

The lens module comprises a bearing part, a base driving assembly and a position sensor, wherein a bearing part main body is annular, and the bearing part is used for bearing a lens; the base comprises a main body part and a fixing part, the main body part is annular, an accommodating cavity matched with the bearing part is formed in the main body part, and the bearing part is arranged in the accommodating cavity; a notch is formed in the side edge of the main body part, and the fixing part is arranged on the side edge of the notch and fixedly connected with the main body part; the bearing part is provided with a driving piece, and the driving piece protrudes from the notch; the driving component is fixedly arranged on the fixing part and drives the bearing part to move in the accommodating cavity by driving the driving part; the position sensor is used for sensing the position relation between the bearing part and the base.

According to the lens module of the embodiment of the application, through such setting, the following beneficial effects can be achieved at least: the bearing part is annular and can be used for installing a circular lens, and the side wall of the bearing part can be thinner, so that the size is reduced. The base is including main part and fixed part, and the main part is the annular, seted up in the main part with the chamber that holds that the carrier phase matches, it will to hold the chamber the carrier frame is established wherein, and the main part is the annular, can be with the fine placing of carrier wherein to the lateral wall of main part also can accomplish very thin, reduces the volume. The side of main part is seted up jaggedly, and the bearing part is provided with the driving piece in breach department protrusion, is provided with the fixed part in breach department, thereby drive assembly sets up and drives the bearing part removal to the driving piece on the fixed part, can drive the removal of lens subassembly, thereby reaches the effect of focusing. Through so setting up, the adjustment bears the weight of the form that sets up of portion, base and drive assembly and reaches the effect of reducing the volume. The position sensor is used for sensing the position relation between the bearing part and the base, the driving assembly is convenient to adjust the degree of the driving bearing part according to the position relation between the bearing part and the base sensed by the position sensor, the degree of focusing of the lens can be controlled more accurately, and the lens can be focused more accurately.

According to some embodiments of the present application, the position sensor includes a magnetic member and a magnetic induction member, any one of the magnetic member and the magnetic induction member is disposed on the bearing portion, and the other one of the magnetic member and the magnetic induction member is fixedly disposed; the position sensor senses the position of the magnetic piece through the magnetic sensing piece to sense the position relation between the bearing part and the base.

According to some embodiments of the application, the magnetic member is disposed at an end surface of the driving member, and the magnetic induction member is disposed opposite to the magnetic member.

According to some embodiments of the present application, a first groove is formed at an end surface of the driving member, and the magnetic member is embedded in the first groove.

According to some embodiments of the present application, the driving assembly includes a memory alloy wire, and the fixing portions are disposed at both sides of the notch; two ends of the memory alloy wire are respectively and fixedly arranged on the fixing part, and the middle part of the memory alloy wire is hooked on the driving part; the driving component drives the driving piece to move by electrifying and contracting the memory alloy wire.

According to some embodiments of the present application, the memory alloy wires are provided in two groups, a middle portion of one group of the memory alloy wires abuts against a top portion of the driving member, and two ends of the one group of the memory alloy wires are located at a bottom portion of the fixing portion; the middle part of the other group of memory alloy wires is abutted with the bottom part of the driving part, and the two ends of the other group of memory alloy wires are positioned at the top part of the fixing part.

According to some embodiments of the application, the memory alloy wire is provided with a plurality of memory alloy wires, and the plurality of memory alloy wires drive the driving piece to move together along the same driving direction.

According to some embodiments of the present application, the container further comprises a suspension assembly, the suspension assembly connects the base and the carrying portion, and the carrying portion is suspended in the accommodating cavity through the suspension assembly.

According to some embodiments of the application, the suspension assembly includes a suspension portion and a connection portion, the suspension portion is connected to the bearing portion, the connection portion is fixedly disposed on the base and elastically connected to the suspension portion, and the bearing portion is suspended in the accommodating cavity through the suspension portion and the connection portion.

According to some embodiments of the present application, the suspension assembly further includes a limiting portion, a second groove is formed on a side of the main body portion, and the limiting portion is disposed in the second groove in a protruding manner.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an external structure of a lens module according to an embodiment of the present application;

fig. 2 is a schematic view of a lens module decomposition structure according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a suspension assembly separated from a carrier according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a magnetic sensor according to an embodiment of the present application;

FIG. 5 is a schematic view of a first embodiment of a memory alloy wire arrangement according to the present application;

FIG. 6 is a schematic view of a second embodiment of a memory alloy wire arrangement according to the present application;

FIG. 7 is a schematic view of a third embodiment of a memory alloy wire arrangement according to the present application;

FIG. 8 is a schematic view of a fourth embodiment of a memory alloy wire arrangement according to the present application;

FIG. 9 is a schematic view of a fifth embodiment of a memory alloy wire arrangement according to the present application;

FIG. 10 is a schematic view of a sixth embodiment of a memory alloy wire arrangement according to the present application;

reference numerals:

the magnetic suspension device comprises a bearing part 100, a driving part 110, a first groove 111, a base 200, a main body part 210, a second groove 211, a fixing part 220, a memory alloy wire 300, a terminal 310, a suspension assembly 400, a suspension part 410, a connecting part 420, a limiting part 430, a magnetic part 510, a magnetic induction part 520 and a shell 600.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, and the like, referred to as positional or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

A lens module according to an embodiment of the present application is described below with reference to fig. 1 to 10.

For example, as shown in fig. 2 and fig. 3, a lens module according to an embodiment of the present application includes a bearing portion 100, a base 200, a driving assembly, and a position sensor, wherein a main body of the bearing portion 100 is ring-shaped, and the bearing portion 100 is used for bearing a lens; the base 200 comprises a main body part 210 and a fixing part 220, the main body part 210 is annular, a containing cavity matched with the bearing part 100 is formed in the main body part 210, and the bearing part 100 is arranged in the containing cavity; a notch is formed in the side edge of the main body part 210, and the fixing part 220 is arranged on the side edge of the notch and fixedly connected with the main body part 210; the bearing part 100 is provided with a driving member 110, and the driving member 110 protrudes from the notch; the driving component is fixedly arranged on the fixing portion 220, and drives the bearing portion 100 to move in the accommodating cavity by driving the driving member 110; the position sensor is used for sensing the position relationship between the bearing part 100 and the base 200.

For example, as shown in fig. 2 and 3, the bearing part 100 is annular, an annular cavity is provided inside the bearing part, the annular cavity is used for bearing a circular lens, and the bearing part 100 is annular, so that unnecessary volume can be reduced, and only necessary parts are reserved. The base 200 comprises a main body part 210 and a fixing part 220, wherein the main body part 210 is annular, a containing cavity matched with the bearing part 100 is formed in the main body part 210, and the bearing part 100 is framed in the containing cavity. A notch is formed in the side edge of the main body part 210, and the fixing part 220 is arranged on the side edge of the notch and fixedly connected with the main body part 210; the bearing part 100 is provided with a driving member 110, and the driving member 110 protrudes from the notch; the driving component is fixedly disposed on the fixing portion 220, and the driving component drives the bearing portion 100 to move in the accommodating cavity by driving the driving component 110. The position sensor can be used for sensing the relation between the bearing part 100 and the base 200, so that the driving assembly can sense whether the bearing part 100 is adjusted in place or is excessively adjusted according to the sensing of the position sensor, the adjustment error of the driving assembly is facilitated, the bearing part 100 can be adjusted to an accurate position, and the focusing precision of the lens is improved.

Through the arrangement of the notch and the driving member 110, the driving member 110 is driven by the driving assembly after protruding from the notch of the base 200, so as to reduce the volume and weight of the lens module to the maximum extent. The base 200 is a semicircular semi-square shape, and a driving component is arranged on one side of the square shape. The semicircular shape is mainly used for framing the bearing part 100, and the half-square shape can mount a driving component on the fixing part 220 besides framing the bearing part 100, so that the driving component can drive the bearing part 100 to move to realize the function of focusing the lens. Further, the main body 210 and the fixing portion 220 of the base 200 are integrally formed. The position sensor may take a variety of forms, such as a magnet in conjunction with a hall sensor or a magnet in conjunction with a TMR sensor. The position sensor senses the distance and the position of the movable part of the bearing part 100 relative to the fixed part, so that whether the bearing part 100 is accurately positioned or not is known, and the driving assembly is convenient to adjust the position of the bearing part 100.

According to the lens module of the embodiment of the application, through such setting, the following beneficial effects can be achieved at least: reduce the volume of lens module, drive assembly sets up in the side of base 200 instead of top or bottom simultaneously, can reduce the height of lens module for the shared space of lens module reduces, does benefit to the miniaturization of camera equipment volume. The position sensor can sense whether the bearing part 100 is adjusted in place or is excessively adjusted, so that the adjustment error of the driving assembly is facilitated, the bearing part 100 can be adjusted to an accurate position, and the focusing precision of the lens is improved.

In some embodiments of the present application, the position sensor includes a magnetic member 510 and a magnetic induction member 520, any one of the magnetic member 510 or the magnetic induction member 520 is disposed on the carrying portion 100, and the other one of the magnetic member 510 and the magnetic induction member 520 is fixedly disposed; the position sensor senses the position of the magnetic member 510 through the magnetic sensing member 520 to sense the position relationship between the supporting portion 100 and the base 200.

For example, as shown in fig. 3 and 4, the position sensor includes a magnetic member 510 and a magnetic sensing member 520, the magnetic member 510 is disposed on the carrying portion 100, the magnetic sensing member 520 is disposed in a fixed manner relative to the magnetic member 510, or the magnetic sensing member 520 is connected to the carrying portion 100, and the magnetic member 510 is disposed in a fixed manner relative to the magnetic sensing member 520. The magnetic induction element 520 and the magnetic element 510 are fixedly arranged, the other one moves together with the bearing part 100, and the two are oppositely arranged, so that a magnetic induction line generated by the magnetic element 510 can pass through the magnetic induction element 520, and the magnetic induction element 520 obtains the position relation with the magnetic element 510 by inducing the change of the magnetic flux of the magnetic element 510 passing through the magnetic induction element 520. The magnetic sensor 520 may be provided with various types, such as a hall sensor or a TMR sensor, and when the hall sensor is used, there is a hall voltage inside the hall sensor, and the hall voltage may be influenced by the intensity of the magnetic field, and the stronger the magnetic field, the higher the hall voltage. It is easy to understand that, the closer the distance between the magnetic member 510 and the hall sensor is, the stronger the magnetic field strength received by the hall sensor is, the higher the hall voltage is, so that the position of the bearing part 100 can be sensed through the arrangement of the hall sensor and the magnetic member 510, thereby facilitating the adjustment of the driving assembly on the position of the bearing part 100, making the control of the driving assembly on the bearing part 100 more accurate, and making the focusing precision of the lens higher.

In some embodiments of the present application, the magnetic member 510 is disposed at an end surface of the driving member 110, and the magnetic induction member 520 is disposed opposite to the magnetic member 510.

For example, as shown in fig. 3 and 5, the magnetic element 510 is disposed at an end surface of the driving element 110, the magnetic induction element 520 is disposed opposite to the magnetic element 510, and the magnetic induction element 520 is fixedly disposed opposite to the magnetic element 510, and may be fixedly disposed together with the housing 600, for example, as shown in fig. 1, the lens module further includes a housing 600, and the housing 600 includes the base 200, the carrying portion 100, and the driving assembly therein, so as to protect the base 200, the carrying portion 100, and the driving assembly to a certain extent. And the housing 600 is divided into upper and lower parts for easy assembly. Meanwhile, the shape of the shell 600 is matched with that of the base 200, and is also semicircular and half-square, so that the volume and the occupied space are reduced.

The inboard of the latter half of casing 600 is provided with a round annular protrusion to the bellied height of annular is lower, and the outside of the first half of casing 600 is provided with a round annular protrusion, and upper and lower two parts form an annular groove together and contain bearing part 100 and base 200 wherein, prevent the removal of lens subassembly in the horizontal direction, simultaneously because the annular protrusion height of inboard is lower, still can make bearing part 100 install the lens, and reserve some spaces for the removal of lens.

The magnetic induction part 520 is fixedly connected with the casing 600, and the base 200 is fixedly connected with the casing 600, so that the magnetic induction part 520 is fixed relative to the base 200, when the driving assembly drives the bearing part 100 to move, the magnetic induction part 520 can induce the position of the bearing part 100 by inducing the position of the magnetic part 510, and the driving assembly can conveniently adjust the position of the bearing part 100.

In some embodiments of the present disclosure, a first groove 111 is formed at an end surface of the driving element 110, and the magnetic element 510 is embedded in the first groove 111.

For example, as shown in fig. 3 and 5, a first groove 111 is formed at an end surface of the driving member 110, and the magnetic member 510 is embedded in the first groove 111. The first groove 111 is formed in the end surface of the driving member 110, so that the magnetic member 510 is embedded in the first groove 111, the space can be saved, and the miniaturization of the lens module volume is facilitated.

In some embodiments of the present application, the driving assembly includes a memory alloy wire 300, and the fixing portion 220 is disposed at both sides of the gap; the two ends of the memory alloy wire 300 are respectively fixed on the fixing part 220, and the middle part of the memory alloy wire 300 is hooked on the driving part 110; the drive assembly is powered to contract through the memory alloy wire 300 to drive the drive member 110 to move.

For example, as shown in fig. 5, the drive component is a memory alloy wire 300. The fixing portions 220 are disposed at both sides of the notch, the memory alloy wire 300 is disposed in a V shape, both ends are fixedly disposed on the fixing portions 220, and the middle portion is abutted against the driving member 110 and hooked on the driving member 110. When the memory alloy wire 300 is powered on and contracted, the driving member 110 can be driven to move, and the driving member 110 moves to drive the carrying part 100 to move together, so that the lens can move, and the focusing effect is achieved. Memory alloy wire 300 may be disposed at the top of driver 110, as shown in fig. 5 and 6, or at the bottom of driver 110, as shown in fig. 7 and 8, or memory alloy wire 300 may be disposed at both the top and bottom of driver 110, as shown in fig. 9 and 10. When the memory alloy wire 300 is arranged at the top of the driving member 110, the memory alloy wire 300 can drive the driving member 110 to move downwards by electrifying and contracting, and when the memory alloy wire 300 is arranged at the bottom of the driving member 110, the driving member 110 can be driven to move upwards by electrifying and contracting the memory alloy wire 300.

Further, the fixing portion 220 is provided with a terminal 310, the terminal 310 is made of a metal sheet, the end of the memory alloy wire 300 is fixedly connected with the terminal 310, and the terminal 310 supplies power to the memory alloy wire 300 so that the memory alloy wire 300 can be electrified and contracted to generate driving force.

The memory alloy wire 300 is used for driving, the volume of the memory alloy wire 300 is smaller, the driving force is larger, the bearing part 100 can be better driven, the volume of the driving assembly can be reduced, and the miniaturization of the volume of the lens module is facilitated.

In some embodiments of the present application, two sets of memory alloy wires 300 are provided, wherein the middle of one set of memory alloy wires 300 is abutted against the top of the driving member 110 and the two ends thereof are located at the bottom of the fixing portion 220; the middle of the other set of memory alloy wires 300 is abutted to the bottom of the driving member 110 and the two ends thereof are located at the top of the fixing portion 220.

For example, as shown in fig. 9 and 10, two sets of memory alloy wires 300 are provided, wherein the middle of one set of memory alloy wires 300 is abutted against the top of the driving member 110 and the two ends thereof are located at the bottom of the fixing portion 220; the middle of the other set of memory alloy wires 300 is abutted to the bottom of the driving member 110 and the two ends thereof are located at the top of the fixing portion 220. The top and bottom of the driving member 110 are provided with memory alloy wires 300, so that the driving member 110 can be driven by the driving assembly to move up or down, when the memory alloy wires 300 are arranged at the top of the driving member 110, the memory alloy wires 300 can drive the driving member 110 to move down by being electrically contracted, and when the memory alloy wires 300 are arranged at the bottom of the driving member 110, the driving member 110 can be driven to move up by being electrically contracted. Through such arrangement, the direction of the driving assembly driving the bearing part 100 to move is more, the driving assembly can drive upwards and also can drive downwards, and the driving is more flexible.

Furthermore, the contact surface between the driving member 110 and the memory alloy wire 300 is arc-shaped, as shown in fig. 2 and 3. By forming the contact surface between the driver 110 and the memory alloy wire 300 in an arc shape, the friction between the memory alloy wire 300 and the driver 110 can be reduced, the wear of the memory alloy wire 300 can be reduced, and the service life of the memory alloy wire 300 can be prolonged.

In some embodiments of the present application, there are multiple memory alloy wires 300 in each group, and the multiple memory alloy wires 300 jointly drive the driving member 110 to move along the same driving direction.

For example, as shown in fig. 6, 8 and 10, two memory alloy wires 300 are provided in each group, two memory alloy wires 300 drive the driving member 110 to move along the same driving direction, and a plurality of memory alloys are driven along the same driving direction to have larger thrust, so that the thrust of the driving assembly is doubled. It is easy to understand that the number of each group of memory alloy wires 300 can be two, three or four, and the like, and the thrust of the driving assembly can be effectively increased.

In some embodiments of the present application, a suspension assembly 400 is further included, the suspension assembly 400 connects the base 200 and the carrying portion 100, and the carrying portion 100 is suspended in the accommodating cavity by the suspension assembly 400.

For example, as shown in fig. 2 and fig. 3, the lens module further includes a suspension assembly 400, and the suspension assembly 400 connects the base 200 and the carrying portion 100, so that the carrying portion 100 is suspended in the accommodating cavity of the base 200, and the driving assembly easily drives the carrying portion 100 to move for focusing. Furthermore, the suspension assembly 400 has a certain elasticity, and the support part 100 can be restored by the elasticity after the driving assembly drives the support part 100.

In some embodiments of the present application, the suspension assembly 400 includes a suspension portion 410 and a connection portion 420, the suspension portion 410 is connected to the carrying portion 100, the connection portion 420 is fixedly disposed on the base 200 and elastically connected to the suspension portion 410, and the carrying portion 100 is suspended in the accommodating cavity by the suspension portion 410 and the connection portion 420.

For example, as shown in fig. 3 and 4, the suspension assembly 400 includes a suspension portion 410 and a connection portion 420, the suspension portion 410 is in a ring shape and matches with the shape of the load-bearing seat, the suspension portion 410 is connected to the top surface and the bottom surface of the load-bearing portion 100, and the connection portion 420 connects the suspension portion 410 and the base 200, so that the load-bearing portion 100 can be suspended in the accommodating cavity by the suspension portion 410 and the connection portion 420, and the driving assembly can easily drive the load-bearing portion 100.

The hanging part 410 is connected with the top surface and the bottom surface of the bearing part 100 in a ring shape, so that the hanging part 410 has a larger connection area with the bearing part 100, and the connection is more stable. The connecting portion 420 connects one end of the hanging portion 410 near the driving assembly and the fixing portion 220 of the base 200, and hangs the carrying portion 100 in the receiving cavity of the base 200. The connecting part 420 is in the shape of an airplane wing and is arranged on the fixing part 220, so that the connecting area is larger, and the connection is more stable.

Furthermore, the suspension assemblies 400 are disposed on both the top and bottom surfaces of the carrying part 100, and the suspension assemblies 400 are disposed on both the top and bottom surfaces of the carrying part 100, so that the carrying part 100 can be suspended in the accommodating cavity of the base 200 better, and the driving assembly can drive the carrying part 100 easily. Meanwhile, the connection part 420 is elastically arranged, and when the driving force of the driving assembly disappears, the bearing part 100 can be reset by the elasticity of the connection part 420.

In some embodiments of the present application, the suspension assembly 400 further includes a limiting portion 430, a side of the main body portion 210 defines a second groove 211, and the limiting portion 430 is disposed in the second groove 211 in a protruding manner.

For example, as shown in fig. 3 and 4, the suspension assembly 400 further includes a limiting portion 430, a second groove 211 is formed on a side of the main body portion 210, and the limiting portion 430 is convexly embedded in the second groove 211. Through the setting of spacing portion 430 and second recess 211 for bearing portion 100 is difficult to rock and remove, suspension that can be stable in the chamber that holds of base 200.

The limiting parts 430 are arranged on the hanging parts 410 of the hanging assembly 400 and symmetrically arranged on two sides of the hanging parts 410, the second grooves 211 are also symmetrically arranged on two sides of the main body part 210, the limiting parts 430 are embedded into the second grooves 211, so that the horizontal position of the hanging parts 410 of the hanging assembly 400 can be fixed, meanwhile, the movement in the vertical direction is not affected, and the driving assembly can be driven to move up and down to realize focusing.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A lens module, comprising:

the bearing part (100), the bearing part (100) main body is ring-shaped, and the bearing part (100) is used for bearing a lens;

the base (200), the base (200) includes a main body part (210) and a fixing part (220), the main body part (210) is annular, a containing cavity matched with the bearing part (100) is formed in the main body part (210), and the bearing part (100) is arranged in the containing cavity; a notch is formed in the side edge of the main body part (210), and the fixing part (220) is arranged on the side edge of the notch and fixedly connected with the main body part (210); a driving piece (110) is arranged on the bearing part (100), and the driving piece (110) protrudes from the notch;

the driving component is fixedly arranged on the fixing part (220), and drives the bearing part (100) to move in the accommodating cavity by driving the driving part (110);

a position sensor for sensing a positional relationship between the carrying section (100) and the base (200).

2. The lens module as claimed in claim 1, wherein the position sensor comprises a magnetic member (510) and a magnetic sensing member (520), any one of the magnetic member (510) or the magnetic sensing member (520) is disposed on the carrying portion (100), and the other one of the magnetic member (510) and the magnetic sensing member (520) is fixedly disposed; the position sensor senses the position of the magnetic member (510) through the magnetic sensing member (520) to sense the position relation between the bearing part (100) and the base (200).

3. The lens module as claimed in claim 2, wherein the magnetic member (510) is disposed at an end surface of the driving member (110), and the magnetic induction member (520) is disposed opposite to the magnetic member (510).

4. The lens module as claimed in claim 3, wherein a first groove (111) is formed at an end surface of the driving member (110), and the magnetic member (510) is embedded in the first groove (111).

5. The lens module as claimed in claim 1, wherein the driving assembly includes a memory alloy wire (300), the fixing portion (220) is disposed on both sides of the notch; two ends of the memory alloy wire (300) are respectively and fixedly arranged on the fixing part (220), and the middle part of the memory alloy wire (300) is hooked on the driving part (110); the driving component drives the driving piece (110) to move by electrifying and contracting the memory alloy wire (300).

6. The lens module as claimed in claim 5, wherein the memory alloy wires (300) are provided in two sets, one set of the memory alloy wires (300) having a middle portion abutting against the top of the driving member (110) and two ends located at the bottom of the fixing portion (220); the middle part of the other group of memory alloy wires (300) is abutted against the bottom part of the driving part (110), and the two ends of the other group of memory alloy wires are positioned at the top part of the fixing part (220).

7. The lens module as claimed in claim 5, wherein there are a plurality of memory alloy wires (300) in each group, and the plurality of memory alloy wires (300) in each group drive the driving member (110) to move together along the same driving direction.

8. The lens module as claimed in claim 1, further comprising a suspension assembly (400), wherein the suspension assembly (400) connects the base (200) and the carrying portion (100), and the carrying portion (100) is suspended in the accommodating cavity by the suspension assembly (400).

9. The lens module as claimed in claim 8, wherein the suspension assembly (400) includes a suspension portion (410) and a connection portion (420), the suspension portion (410) is connected to the carrying portion (100), the connection portion (420) is fixedly disposed on the base (200) and elastically connected to the suspension portion (410), and the carrying portion (100) is suspended in the accommodating cavity by the suspension portion (410) and the connection portion (420).

10. The lens module as claimed in claim 8, wherein the suspension assembly (400) further includes a limiting portion (430), a second groove (211) is formed on a side of the main body portion (210), and the limiting portion (430) is disposed in the second groove (211) in a protruding manner.

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