CN214540193U - Lens module and electronic equipment - Google Patents

Abstract

The application discloses camera lens module and electronic equipment belongs to the technical field of making a video recording. The application discloses lens module includes: the fixing seat is provided with an accommodating cavity which is communicated up and down, one side of the fixing seat is provided with a notch, and the notch is communicated with the accommodating cavity; the bearing part is arranged in the accommodating cavity and bears the lens; a driven part is arranged on one side of the bearing part and protrudes from the notch; the suspension assembly comprises a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are symmetrically arranged along the gap and are both connected with the fixed seat and the bearing part, and the bearing part is suspended in the accommodating cavity through the suspension assembly; and two ends of the SMA wire are respectively connected with two sides of the notch, the SMA wire is bent in a V shape, and the middle part of the SMA wire is hooked on the driven piece. The lens module of this application, it is less to install shared space, and moves steadily.

Description

Lens module and electronic equipment

Technical Field

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

Background

With the development of the camera technology, on some high-end intelligent devices such as a flagship type of a smart phone, a plurality of different types of lenses are gradually and simultaneously arranged to improve the imaging capability of the intelligent device.

The conventional lens module generally comprises a lens assembly, a fixing seat and a driving module, wherein the lens assembly is arranged in or on the fixing seat, and the driving module drives the lens assembly to perform focusing or anti-shaking operation. However, the shape and volume of each component in the existing lens module and the installation form between them lead to a larger space occupied by the lens module, which directly leads to a larger volume of the lens module, and is not beneficial to the miniaturization of the equipment.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving one of the technical problems in the prior art. Therefore, the present application provides a lens module. The lens module of this application, it is less to install shared space, is favorable to the miniaturization of equipment volume. The application also provides an electronic device.

According to the first aspect of the application, the lens module includes:

the fixing seat is provided with an accommodating cavity which is communicated up and down, one side of the fixing seat is provided with a notch, and the notch is communicated with the accommodating cavity;

the bearing part is arranged in the accommodating cavity and bears a lens; a driven piece is arranged on one side of the bearing part, and the driven piece protrudes from the notch;

the suspension assembly comprises a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are symmetrically arranged along the gap and are both connected with the fixed seat and the bearing part, and the bearing part is suspended in the accommodating cavity through the suspension assembly;

the two ends of the SMA wire are respectively connected with the two sides of the notch, and the SMA wire is bent in a V shape, and the middle part of the SMA wire is hooked on the driven piece.

According to the lens module of the embodiment of the application, at least, the following beneficial effects are achieved:

the bearing part is provided with a lens, and the shape of the bearing part is consistent with that of the accommodating cavity. A notch is formed in one side of the fixed seat, a driven part is arranged on one side, corresponding to the notch, of the bearing part, and the driven part protrudes out of the notch of the fixed seat; the two ends of the SMA wire are respectively connected with the two sides of the notch, the SMA wire is bent in a V shape, the middle part of the SMA wire is hooked on the driven piece, the SMA wire is electrified and contracted to pull the driven piece to move, and the driven piece drives the bearing part to move in the accommodating cavity, so that the focusing operation of the lens is realized; when the V-shaped included angle on the SMA wire is larger, the SMA wire is electrified and contracted by the same amount, and the distance that the V-shaped vertex moves is longer, namely, the moving distance of the driven piece is longer, so that the V-shaped included angle of the SMA wire can be set at a larger value, and the vertical distance from the V-shaped included angle vertex on the SMA wire to the connection point of the SMA wire and the fixed seat is reduced, thereby reducing the thickness of the lens module and being beneficial to the miniaturization of the size. The suspension assembly is connected with the fixed seat and the bearing part, so that the bearing part can be suspended in the accommodating cavity, the outer side wall of the bearing part is prevented from contacting with the inner side wall of the accommodating cavity, friction during movement of the bearing part is reduced, and the driving efficiency of the SMA wire is improved, so that the arrangement of the SMA wire is reduced, the installation space is saved, and the size is reduced; simultaneously, the suspension assembly is provided with first shell fragment and second shell fragment, and first shell fragment and second shell fragment set up along the breach symmetry, make the supporting part receive suspension assembly's effort more even, are favorable to improving the stability of supporting part motion.

According to some embodiments of the present application, the first elastic piece and the second elastic piece are U-shaped, and both the first elastic piece and the second elastic piece include a first cantilever and a second cantilever; the first cantilever is connected with the second cantilever, the joint of the first cantilever and the second cantilever is close to the driven part, the first cantilever is connected with the fixed seat, and the second cantilever is connected with the bearing part.

According to some embodiments of the present application, a spacing groove is formed between the first cantilever and the second cantilever, and a width of the spacing groove is smaller than a width of a connection between the first cantilever and the second cantilever.

According to some embodiments of the present application, the suspension assembly further comprises a connection portion connecting the first cantilever of the first resilient plate and the first cantilever of the second resilient plate; and a hanging part is arranged in the middle of the connecting part and is connected with the driven part.

According to some embodiments of the application, one end of the first cantilever, which is far away from the driven part, is provided with a limiting part, a limiting groove is correspondingly formed in the fixing seat, and the limiting part is embedded in the limiting groove.

According to some embodiments of the application, the suspension assemblies are provided in two sets, wherein one set of the suspension assemblies connects the holder bottom and the carrier bottom and the other set of the suspension assemblies connects the holder top and the carrier top.

According to some embodiments of this application, the SMA wire is provided with two sets of, two sets of the V type opening opposite direction of SMA wire, the centre gripping of driven piece is in two sets of between the V type contained angle that the SMA wire buckled and formed.

According to some embodiments of the application, a surface of the driven member abutting against the SMA wire is a circular arc surface.

According to some embodiments of the application, the SMA wire comprises a fixing seat, a bearing part and a suspension assembly, wherein the fixing seat, the bearing part, the SMA wire and the suspension assembly are covered by an outer cover, and the inner surface of the outer cover is subjected to insulation treatment.

The electronic equipment according to the second aspect of the present application includes the lens module.

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 above and/or 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 front view of a lens module according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of a lens module according to an embodiment of the present disclosure.

Fig. 3 is a top view of a lens module according to an embodiment of the present disclosure.

Fig. 4 is a top view of a lens module according to another embodiment of the present application.

Fig. 5 is a perspective view of a lens module according to an embodiment of the present application after removing a suspension of an outer cover.

Fig. 6 is a perspective view of a holder suspension according to an embodiment of the present application.

FIG. 7 is a perspective view of the mounting relationship between the SMA wire suspension and the touch plate suspension and the driven member suspension in one embodiment of the present application.

FIG. 8 is a perspective view of the mounting relationship between the SMA wire suspension and the touch plate suspension and the driven member suspension in another embodiment of the present application.

Fig. 9 is a top view of the first resilient piece or the second resilient piece according to an embodiment of the present disclosure.

FIG. 10 is a schematic view illustrating a suspension assembly and load-bearing section force-bearing points in one embodiment of the present application.

Reference numerals:

a fixed seat 100;

a housing cavity 111; a notch 112; a limiting groove 113; a touch plate 120; a terminal 121;

a carrier part 200;

a driven member 210; a bump 211; a first mounting groove 212; a second mounting groove 213;

positioning posts 214; a connecting piece 215;

a suspension assembly 300;

a first resilient piece 300 a; a second elastic piece 300 b;

a first suspension arm 310; a second cantilever 320;

a connecting portion 340; a hanging portion 350; a limiting portion 360;

an SMA wire 400;

a first SMA wire 410; a second SMA wire 420;

a housing 500.

Detailed Description

Reference will now be made in detail to the 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, left, right, front, rear, 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, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

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 first aspect of the present application is described below with reference to fig. 1 to 10.

Referring to fig. 1, 2, 5 and 6, a lens module according to the present application includes:

the fixing seat 100 is provided with an accommodating cavity 111 which is communicated up and down, one side of the fixing seat 100 is provided with a notch 112, and the notch 112 is communicated with the accommodating cavity 111;

the bearing part 200, the bearing part 200 is arranged in the accommodating cavity 111, and the bearing part 200 bears the lens; a driven element 210 is arranged on one side of the bearing part 200, and the driven element 210 protrudes from the notch 112;

the suspension assembly 300, the suspension assembly 300 includes a first elastic sheet 300a and a second elastic sheet 300b, the first elastic sheet 300a and the second elastic sheet 300b are symmetrically disposed along the gap 112 and are both connected to the fixing base 100 and the carrying portion 200, and the carrying portion 200 is suspended in the accommodating cavity 111 through the suspension assembly 300;

the two ends of the SMA wire 400 are respectively connected with the two sides of the notch 112, the SMA wire 400 is bent in a V shape, and the middle part of the SMA wire 400 is hooked on the driven part 210.

Specifically, the accommodating cavity 111 is circular, the contour of the side wall of the carrying part 200 is consistent with the contour of the inner side wall of the accommodating cavity 111, and the carrying part 200 is installed in the accommodating cavity 111 and has a certain gap with the side wall of the accommodating cavity 111. In order to mount the lens, an annular cavity is formed in the carrying portion 200, and the lens is mounted in the annular cavity of the carrying portion 200, and the annular cavity may be replaced by a cavity of another shape, specifically, the annular cavity may be configured according to the shape of the lens. The fixing base 100 frames the bearing portion 200 in the accommodating cavity 111, and the bearing portion 200 frames the lens in the annular cavity, so that the thickness of the lens module can be reduced, and the reduction of the size of the lens module is facilitated.

Specifically, the SMA wire 400 is disposed on one side of the fixing base 100, where the notch 112 is formed, two ends of the SMA wire 400 are respectively connected to two sides of the notch 112, the SMA wire 400 is bent in a V shape, and the middle of the SMA wire 400 is hooked on the driven part 210, and when the SMA wire 400 is electrified and contracted, the SMA wire pulls the driven part 210 to move, and the driven part 210 drives the bearing part 200 to move in the accommodating cavity 111, thereby implementing the focusing operation of the lens. The position of the V-shaped apex on the SMA wire 400 varies with the degree to which the SMA wire 400 contracts when energized, and as the included angle of the V-shape on the SMA wire 400 increases, the SMA wire 400 contracts by the same amount when energized, and the V-shaped apex moves a longer distance, i.e., the driven member 210 moves a longer distance. Therefore, the V-shaped included angle of the SMA wire 400 is set to a larger value, so that the vertical distance from the vertex of the V-shaped included angle on the SMA wire 400 to the connection point of the SMA wire 400 and the fixed seat 100 is reduced, thereby reducing the thickness of the lens module and achieving the effect of miniaturization of the lens module.

It is understood that the SMA wire 400 may be connected to the holder 100 in the following manner. The side edge of one side of the notch 112 is provided with the touch panel 120 on the same top surface or the bottom surface of the fixing seat 100, the touch panel 120 is clamped, bonded, welded or fixedly connected with the top surface or the bottom surface of the fixing seat 100, the two touch panels 120 are symmetrically arranged about the notch 112, two ends of the SMA wire 400 are electrically connected with the touch panels 120 on two sides of the notch 112 respectively, and through the arrangement, the space is favorably reasonably utilized, and the quick assembly of the SMA wire 400 is also favorably realized. It can be understood that, the contact plate 120 is provided with the terminal 121 inclined at a certain angle, two ends of the SMA wire 400 are respectively connected with the terminal 121, the inclination angle of the terminal 121 faces the length direction of the SMA wire 400 connected with the terminal, because the end of the SMA wire 400 connected with the contact plate 120 is generally welded, when the SMA wire 400 is bent into a V shape, a fold is formed at the joint of the SMA wire 400 and the contact plate 120, and after a long time or after the SMA wire 400 is electrified and contracted for a certain number of times, the SMA wire 400 is cracked at the fold, thereby affecting the service life of the SMA wire 400. Therefore, the terminals 121 are disposed on the contact plate 120 at an angle, and the angle of inclination is directed to the longitudinal direction of the SMA wire 400 connected thereto. The SMA wire 400 is welded or bonded to the terminal 121 on the touch panel 120, and in an initial state, an included angle between a section of the SMA wire 400 fixedly connected to the terminal 121 and an adjacent side of the V-shaped included angle is 0, and when the SMA wire 400 is contracted by being electrified, a numerical value of an included angle between a section of the SMA wire 400 fixedly connected to the terminal 121 and the adjacent side of the V-shaped included angle is only slightly changed. Through so setting up, can reduce the angle of buckling of SMA wire 400 in the department of being connected with touch panel 120, reduce the wearing and tearing of SMA wire 400, improve the life of SMA wire 400.

Specifically, suspension assembly 300 connects fixing base 100 top and load-bearing part 200 top, or fixing base 100 bottom and load-bearing part 200 bottom to make load-bearing part 200 can hang in holding chamber 111, avoid load-bearing part 200 lateral wall and hold chamber 111 inside wall contact, friction when reducing load-bearing part 200 motion is favorable to improving drive assembly's drive efficiency, thereby reduce SMA wire 400's setting, be favorable to sparingly installing space, reduce the volume. Specifically, the suspension assembly 300 is provided with a first elastic sheet 300a and a second elastic sheet 300b, and the first elastic sheet 300a and the second elastic sheet 300b are symmetrically arranged along the notch 112, so that the acting force of the suspension assembly 300 on the bearing part 200 is more uniform, which is beneficial to improving the motion stability of the bearing part 200; in addition, when the SMA wire 400 is powered off and relaxed, the supporting portion 200 can be reset by the elastic forces of the first elastic piece 300a and the second elastic piece 300b to prepare for the next focusing operation.

Referring to fig. 2 to 4, in some embodiments of the present application, the first resilient plate 300a and the second resilient plate 300b are U-shaped, and each of the first resilient plate 300a and the second resilient plate 300b includes a first cantilever 310 and a second cantilever 320; the first suspension arm 310 is connected to the second suspension arm 320, the connection between the first suspension arm 310 and the second suspension arm 320 is close to the driven member 210, the first suspension arm 310 is connected to the fixing base 100, and the second suspension arm 320 is connected to the carrying portion 200.

It can be understood that the fixing base 100 is provided with a positioning pin, and an insertion hole is formed at one end of the first cantilever 310 away from the driven member 210, and during assembly, the insertion hole on the first cantilever 310 is matched with the positioning pin of the fixing base 100, and then the first cantilever 310 is bonded with the fixing base 100, so that the positioning of the first cantilever 310 can be completed. The second suspension arm 320 connects the carrying portion 200 and the first suspension arm 310, and the connection manner of the second suspension arm 320 and the carrying portion 200 is the same as the connection manner of the first suspension arm 310 and the fixing base 100, which is not described herein again.

It should be understood that in the following description, in the plane of the suspension assembly 300, it is in the plane of the suspension assembly in the initial state.

The first elastic piece 300a and the second elastic piece 300b are both U-shaped, and for saving space, the first cantilever 310 and the second cantilever 320 are both arc-shaped, and the second cantilever 320 is disposed on the inner side of the arc-shaped first cantilever 310, specifically, the joint of the first cantilever 310 and the second cantilever 320 is close to the driven piece 210, so that the geometric center of the suspension assembly 300 is located at the midpoint of the connecting line of the centers of the first elastic piece 300a and the second elastic piece 300b on the left and right sides of the suspension assembly 300, and the projection of the acting force of the suspension assembly 300 on the plane of the suspension assembly 300 is located at the geometric center of the suspension assembly 300. It should be understood that, the projection of the SMA wire 400 on the plane of the suspension assembly 300 at the abutment of the driven element 210 is located on the line of the center of the connection between the first spring piece 300a and the second spring piece 300b on the left and right sides of the suspension assembly 300, when the SMA wire 400 is electrically contracted to pull the driven element 210 to move, the driven element 210 is subjected to a vertically upward or vertically downward driving force, as shown in fig. 10, the projection of the force bearing point of the driven element 210 on the plane of the suspension assembly 300 is close to or coincident with the geometric center of the suspension assembly 300 and is located at a point a, that is, the force of the SMA wire 400 on the load bearing part 200 is equal to and opposite to the force of the load bearing part 200 on the suspension assembly 300, so that the force on the load bearing part 200 is balanced, and the risk of deflection of the load bearing part 200 is reduced.

Referring to fig. 9, in some embodiments of the present application, a spacing groove is formed between the first and second suspension arms 310 and 320, and has a width smaller than that of a connection between the first and second suspension arms 310 and 320.

Since the carrying portion 200 is driven by the SMA wire 400 only on one side thereof, the suspension assembly 300 also suspends and supports only one side of the carrying portion 200, and thus the carrying portion 200 may still deflect in the accommodating chamber 111.

To solve the above problem, it should be understood that the suspension assembly 300 may also have the following configuration:

specifically, the width b of the spacing groove has a value smaller than the width a of the connection between the first and second cantilevers 310 and 320, and specifically, the magnitude of the value a may be three times or more the magnitude of the value b. By such arrangement, the rigidity of the suspension assembly 300 in the moving direction of the bearing part 200 is far less than that in other directions, so that the suspension assembly 300 is only allowed to deform greatly in the moving direction of the bearing part 200; when the carrying part 200 moves up and down, the first suspension arm 310 and the second suspension arm 320 are bent and deformed in the direction of the movement of the carrying part 200, and the joint between the first suspension arm 310 and the second suspension arm 320 is only slightly twisted and deformed, so that the carrying part 200 is prevented from deflecting to a large extent and the focusing effect is prevented from being affected.

Through so setting up, make the subassembly 300 that hangs possess better elasticity in the portion 200 direction of motion of bearing, make the portion 200 that bears move more steadily, only need set up in portion 200 one side and hang subassembly 300 and can make portion 200 that bears steady motion in holding chamber 111, be favorable to reducing the shared space of subassembly 300 that hangs, and then be favorable to the miniaturization of lens module volume.

Referring to fig. 4, in some embodiments of the present application, the suspension assembly 300 further includes a connection portion 340, the connection portion 340 connecting the first suspension arm 310 of the first resilient sheet 300a and the first suspension arm 310 of the second resilient sheet 300 b; a hanging portion 350 is provided in the middle of the connecting portion 340, and the hanging portion 350 connects the driven member 210.

It can be understood that the provision of the connecting portion 340, the connecting portion 340 connecting the first suspension arm 310 of the first resilient sheet 300a and the first suspension arm 310 of the second resilient sheet 300b, can enhance the connection between the first resilient sheet 300a and the second resilient sheet 300b, so as to improve the overall stability of the suspension assembly 300; the middle of the connecting portion 340 is provided with a hanging portion 350, the hanging portion 350 connects to the driven element 210, and in particular, the hanging portion 350 and the driven element 210 may be connected by clamping, bonding or the like to facilitate assembly. After the connecting portion 340 is disposed, the suspension portion 350 is additionally disposed, so that a projection of a stress point of the driven element 210 on a plane of the suspension assembly 300 is close to or coincides with a geometric center of the suspension assembly 300, stability of the suspension assembly 300 is enhanced, and meanwhile, the suspension assembly 300 can keep stress balance during lens focusing operation, and the bearing portion 200 is prevented from deflecting due to uneven stress of the suspension assembly 300, and a lens focusing effect is prevented from being affected.

It can be understood that the suspension assembly 300 is formed by integrally stamping, cutting and forming, and the processing is convenient and fast.

It can be understood that the suspension assembly further has the following arrangement form, that is, the suspension assembly is further provided with a fitting portion, the fitting portion is annular and is fixedly connected with the upper surface or the lower surface of the bearing portion, and the fitting portion is connected with the second cantilever of the first elastic sheet and the second cantilever of the second elastic sheet. Through so setting up, can further strengthen the contact between first shell fragment and the second shell fragment, be favorable to improving the overall stability who hangs the subassembly.

Referring to fig. 3 and 4, in some embodiments of the present application, a limiting portion 360 is disposed at an end of the first suspension arm 310 away from the driven element 210, a limiting groove 113 is disposed on the fixing base 100, and the limiting portion 360 is embedded in the limiting groove 113.

It can be understood that, by providing the limiting portion 360 at the end of the first suspension arm 310 away from the driven member 210, the limiting groove 113 is formed on the fixing base 100, the size of the limiting groove 113 is slightly larger than the size of the limiting portion 360, and the limiting portion 360 is embedded in the limiting groove 113, so that the suspension assembly 300 can be prevented from shaking in a direction perpendicular to the moving direction of the bearing portion 200 in a large range to affect the movement of the bearing portion 200. Through so setting up, be favorable to improving the stability of bearing part 200 when suspending in holding chamber 111 to improve the lens effect of focusing.

Referring to fig. 1 and 2, in some embodiments of the present application, the suspension assemblies 300 are provided in two sets, wherein one set of suspension assemblies 300 connects the bottom of the holder 100 and the bottom of the carrier 200, and the other set of suspension assemblies 300 connects the top of the holder 100 and the top of the carrier 200.

It can be understood that, by providing two sets of suspension assemblies 300, when the carrying portion 200 moves up and down in the accommodating cavity 111, the two sets of suspension portions 350 are elastically deformed at the same time, so that the carrying portion 200 is more uniformly subjected to suspension force, which is beneficial to improving the movement stability of the carrying portion 200.

Referring to fig. 1, 2 and 5, in some embodiments of the present application, two sets of SMA wires 400 are provided, the V-shaped openings of the two sets of SMA wires 400 are in opposite directions, and the driven member 210 is clamped between the included V-shaped angles formed by bending the two sets of SMA wires 400.

Specifically, the SMA wire 400 includes a first SMA wire 410 and a second SMA wire 420, and in an initial state, the first SMA wire 410 and the second SMA wire 420 are vertically symmetrical with respect to the driven member 210, and a middle portion of the first SMA wire 410 abuts against a bottom portion of the driven member 210, and the second SMA wire 420 abuts against a top portion of the driven member 210. When the carried part 200 needs to move upwards to realize focusing operation, the first SMA wire 410 is electrified to contract and pull the driven part 210 to move upwards, the second SMA wire 420 is electrified with variable micro current to keep slightly tensioned, and the abutting position of the second SMA wire 420 and the driven part 210 is kept unchanged; when focusing is completed and the carried part 200 needs to move downwards to realize resetting, the second SMA wire 420 can be electrified to contract and pull the driven part 210 to move downwards, and meanwhile, the first SMA wire 410 is electrified with smaller current to keep slightly tensioned, so that the abutting position of the first SMA wire 410 and the driven part 210 is kept unchanged. By providing two sets of SMA wires 400, the carrier 200 can be sequentially focused and restored to its original position, so that the movement of the carrier 200 is more controllable.

Referring to fig. 7, in some embodiments of the present application, the surface of the driven member 210 abutting the SMA wire 400 is a circular arc surface.

It is understood that driven member 210 may be a cylinder. Through the arrangement, the friction between the SMA wire 400 and the driven piece 210 can be reduced, and the service life of the SMA wire 400 is prolonged; meanwhile, the face, abutted to the SMA wire 400, of the driven part 210 is an arc face, and the driven part 210 is clamped between the V-shaped included angles formed by bending the first SMA wire 410 and the second SMA wire 420, so that when the two groups of SMA wires 400 are electrified, contracted and tensioned, the driven part 210 can freely slide between the V-shaped included angles formed by the two groups of SMA wires 400, stable centering correction is realized, the driven part 210 is in a balanced state under the condition that the SMA wires 400 are electrified, and focusing is more accurate.

It can be understood that in order to stabilize the position of the SMA wire 400 on the driven member 210, a groove is formed on the arc-shaped contact surface of the driven member 210. Specifically, the width and depth of the groove are both greater than the diameter of the SMA wire 400, so that the SMA wire 400 can move freely in the groove, the phenomenon that the expansion and contraction of the SMA wire 400 are affected due to too small gap between the side wall of the groove and the SMA wire 400 is prevented, and the heat dissipation of the SMA wire 400 in the groove is facilitated; meanwhile, the length of the groove is greater than the contact length of the SMA wire 400 and the driven member 210, when the driven member 210 is driven to move by electrifying and contracting the first SMA wire 410 and the second SMA wire 420, and when the driven member 210 slides between the V-shaped included angle formed by the first SMA wire 410 and the second SMA wire 420 to complete the centering correction, because the length of the groove is greater than the contact length of the SMA wire 400 and the driven member 210, the first SMA wire 410 and the second SMA wire 420 can be always positioned in the groove during the sliding process of the driven member 210, and the first SMA wire 410 and the second SMA wire 420 can be prevented from being separated from the preset position, so that the movement precision is influenced. It is understood that two grooves may be provided for passing through the first SMA wire 410 and the second SMA wire 420, respectively, and the grooves corresponding to the first SMA wire 410 and the second SMA wire 420 are separately provided, so as to prevent the first SMA wire 410 and the second SMA wire 420 from contacting each other under some conditions, which may cause a short circuit between the SMA wires 400 or affect heat dissipation.

It will be appreciated that the driven member 210 may have the following arrangement in addition to the arrangement described above.

Referring to fig. 2 and 8, it can be understood that a first mounting groove 212 is formed on one side of the supporting portion 200 opposite to the notch 112, and a protrusion 211 is formed on one side of the driven member 210 opposite to the supporting seat, when assembling, the protrusion 211 of the driven member 210 is inserted into the first mounting groove 212 of the supporting portion 200, and the assembling of the driven member 210 can be completed; further, a connecting piece 215 is further connected between the driven part 210 and the bearing part 200, and is respectively connected with the top of the driven part 210 and the top of the bearing part 200, specifically, positioning posts 214 are respectively arranged on the top of the driven part 210 and the top of the bearing part 200, a second mounting groove 213 is further arranged on the top of the bearing part 200, one end of the connecting piece 215 is embedded in the second mounting groove 213 and is matched with the positioning posts 214 on the top of the bearing part 200, the other end of the connecting piece 215 is matched with the positioning posts 214 on the top of the driven part 210, and the connecting piece 215 is respectively abutted against the top of the bearing part 200 and the top of the driven part 210. Through such setting, driven piece 210 and bearing part 200 easy dismounting can change different driven pieces 210 according to the number of SMA wire 400, saves manufacturing cost.

It can be understood that the connecting piece 215 is provided in two pieces, and besides connecting the top of the driven element 210 and the top of the bearing part 200 and also connecting the bottom of the driven element 210 and the bottom of the bearing part 200, the connecting way between the connecting piece 215 and the bottom of the driven element 210 and the bottom of the bearing part 200 is the same as the above way, and will not be described again.

Referring to fig. 2, in some embodiments of the present application, further comprising a cover 500, the cover 500 covers the fixing base 100, the bearing part 200, the SMA wire 400 and the suspension assembly 300 therein, and an inner surface of the cover 500 is insulated.

It will be appreciated that the housing 500 is provided to protect the internal components of the lens module. Generally, since the lens module has a small volume and the thickness of the housing 500 is small, the housing 500 is preferably made of a metal material with high rigidity. Because the distance between each part of the lens module is small, and some parts are exposed and electrified, the inner surface of the outer cover 500 is subjected to insulation treatment, and short circuit between the parts caused by contact between each part of the lens module and the outer cover 500 can be avoided. The insulation treatment may be performed by coating an insulating material or plating an insulating film.

The electronic device according to the second aspect of the present application includes the lens module.

It can be understood that, by adopting the lens module, the volume of the electronic equipment is reduced, and meanwhile, the thickness of the electronic equipment is also reduced, which is beneficial to the lightening and thinning of the electronic equipment; or, more lens modules can be installed without increasing the volume of the electronic device, so as to improve the imaging capability of the electronic device.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.

Claims (10)

1. A lens module, comprising:

the fixing seat is provided with an accommodating cavity which is communicated up and down, one side of the fixing seat is provided with a notch, and the notch is communicated with the accommodating cavity;

the bearing part is arranged in the accommodating cavity and bears a lens; a driven piece is arranged on one side of the bearing part, and the driven piece protrudes from the notch;

the suspension assembly comprises a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are symmetrically arranged along the gap and are both connected with the fixed seat and the bearing part, and the bearing part is suspended in the accommodating cavity through the suspension assembly;

the two ends of the SMA wire are respectively connected with the two sides of the notch, and the SMA wire is bent in a V shape, and the middle part of the SMA wire is hooked on the driven piece.

2. The lens module as set forth in claim 1, wherein: the first elastic sheet and the second elastic sheet are U-shaped, and both the first elastic sheet and the second elastic sheet comprise a first cantilever and a second cantilever; the first cantilever is connected with the second cantilever, the joint of the first cantilever and the second cantilever is close to the driven part, the first cantilever is connected with the fixed seat, and the second cantilever is connected with the bearing part.

3. The lens module as set forth in claim 2, wherein: a spacing groove is formed between the first cantilever and the second cantilever, and the width of the spacing groove is smaller than that of the joint between the first cantilever and the second cantilever.

4. The lens module as set forth in claim 2, wherein: the suspension assembly further comprises a connecting part, and the connecting part is connected with the first cantilever of the first elastic sheet and the first cantilever of the second elastic sheet; and a hanging part is arranged in the middle of the connecting part and is connected with the driven part.

5. The lens module as set forth in claim 2, wherein: one end of the first cantilever, which is far away from the driven part, is provided with a limiting part, a limiting groove is correspondingly formed in the fixing seat, and the limiting part is embedded in the limiting groove.

6. The lens module as claimed in any one of claims 1 to 5, wherein: the suspension assemblies are arranged in two groups, one group of the suspension assemblies is connected with the bottom of the fixed seat and the bottom of the bearing part, and the other group of the suspension assemblies is connected with the top of the fixed seat and the top of the bearing part.

7. The lens module as set forth in claim 1, wherein: the SMA wire is provided with two groups, the V-shaped openings of the two groups of SMA wires are opposite in direction, and the driven piece is clamped between the V-shaped included angles formed by bending the two groups of SMA wires.

8. The lens module as set forth in claim 1, wherein: and one surface of the driven piece, which is abutted against the SMA wire, is an arc surface.

9. The lens module as set forth in claim 1, wherein: the fixing seat, the bearing part, the SMA wire and the suspension assembly are covered by the outer cover, and the inner surface of the outer cover is subjected to insulation treatment.

10. An electronic device, characterized in that: a lens module comprising the lens module according to any one of claims 1 to 9.

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