CN217846753U - Lens module and electronic device - Google Patents

Abstract

The utility model discloses a camera lens module and electronic equipment, the camera lens module includes: a base, a carrier and a drive mechanism; the carrier is movably arranged on the base along the direction of the optical axis, and a lens is arranged on the carrier; the driving mechanism comprises a magnetostrictive member and a magnetic assembly, the magnetostrictive member is formed into a column shape, two ends of the magnetostrictive member are respectively connected with the carrier and the base, and the magnetic assembly is used for generating a magnetic field acting on the magnetostrictive member so as to enable the magnetostrictive member to stretch and contract along the direction of the optical axis. According to the utility model discloses a lens module can carry out flexible magnetostrictive member under the influence of magnetic field through the setting, when realizing that the camera lens is focused, has simplified the structure of lens module, has prolonged the stroke that the camera lens removed in the optical axis direction.

Description

Lens module and electronic device

Technical Field

The utility model belongs to the technical field of the electronic equipment technique and specifically relates to a camera lens module and electronic equipment are related to.

Background

In the related art, the motor driving technical solution of the current camera module mainly depends on VCM (Voice Coil motor) driving, and realizes the focusing movement of the module through the interaction between the Coil and the magnet. However, the structure is complex to assemble and has short stroke.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a lens module, lens module can carry out the magnetostrictive member that stretches out and draws back through setting up under the influence of magnetic field, realizes the drive to the camera lens, when realizing that the camera lens focuses, has simplified the structure of lens module, has prolonged the stroke that the camera lens removed in the optical axis direction.

The utility model also provides an electronic equipment of having above-mentioned camera lens module.

According to the utility model discloses the camera lens module of first aspect, include: a base; the carrier is movably arranged in the shell along the direction of an optical axis, and a lens is arranged on the carrier; the driving mechanism comprises a magnetostrictive member and a magnetic assembly, the magnetostrictive member is formed into a column shape, two ends of the magnetostrictive member are respectively connected with the carrier and the base, and the magnetic assembly generates a magnetic field acting on the magnetostrictive member so that the magnetostrictive member extends and retracts in the direction of the optical axis.

According to the utility model discloses a lens module can carry out the magnetostrictive member that stretches out and draws back through setting up under the magnetic field influence, when realizing that the camera lens focuses, has simplified the structure of lens module, has prolonged the stroke that the camera lens removed in the optical axis direction.

In some embodiments, the magnetostrictive member extends along an optical axis and both ends of the magnetostrictive member are respectively fixed to the carrier and the base, the magnetic assembly is fixed to the carrier and/or the base, and the magnetostrictive member pushes the carrier to move along the optical axis by stretching along the optical axis. Therefore, the magnetostrictive member pushes the carrier to move along the optical axis, so that the lens moves in the direction of the optical axis, and the focusing of the lens module is realized

In some embodiments, the magnetic assembly is formed as a coil fixed to the base and sleeved radially outward of the magnetostrictive member. Like this, establish the coil of establishing in the radial outside of magnetostrictive member as the magnetism subassembly through setting up the cover, the coil circular telegram can be in the inside magnetic field that forms of coil, can change the direction of the inside magnetic field of coil through the current direction that changes the income coil, and then realize the flexible of magnetostrictive member, and the volume that the coil occupied is less simultaneously, is favorable to the inside space utilization of lens module.

In some embodiments, the carrier is provided with a first guiding structure, and the base is provided with a second guiding structure, wherein the first guiding structure and the second guiding structure are matched to guide the carrier. Therefore, the movement of the carrier is guided by the first guide structure and the second guide structure which are matched with each other, so that the movement direction of the carrier is limited, and the lens module can be focused more stably.

In some embodiments, the first guide structure is a guide hole, the guide hole penetrates through the carrier along the optical axis direction, and the second guide structure is a guide rod, the guide rod is inserted into the guide hole to realize sliding connection with the carrier. Like this, through guide bar and the guiding hole of mutually supporting for the direction is more accurate, and the structure is simpler, makes the carrier can follow the steady removal of optical axis direction.

In some embodiments, the number of the guide holes is multiple, the guide holes are arranged at intervals along the circumferential direction of the lens, the number of the guide rods is multiple, and the guide rods are matched with the guide holes in a one-to-one correspondence manner. Therefore, the plurality of guide holes and the guide rods which are matched with each other are symmetrically arranged in the radial direction of the lens, so that the motion stability of the carrier under the driving of the magnetostrictive member can be further ensured, and the carrier is prevented from inclining in the motion process to influence the focusing of the lens module.

In some embodiments, the lens module may further include: the elastic piece is a spring, and two ends of the spring are respectively fixed with the carrier and the base. Therefore, the spring can apply force to the carrier along the optical axis direction, damping is provided for the movement of the carrier, and the stability of the carrier in the movement process is further ensured.

In some embodiments, the carrier comprises: the first bearing piece and the second bearing piece are arranged in a plane perpendicular to the optical axis at intervals and oppositely, and the lens is fixed with the first bearing piece and the second bearing piece and is positioned between the first bearing piece and the second bearing piece.

In some embodiments, the base comprises: the upper cover is connected with the base, the upper cover is respectively located on the two sides of the optical axis direction of the carrier, and through holes aligned with the lens in the optical axis direction are formed in the upper cover and the base. In general, a base is often disposed at an image side of the lens, and an upper cover is disposed at an object side of the lens, wherein the base may provide mounting positions for the coil, the magnetostrictive member, and the guide rod, and fix the coil, the magnetostrictive member, and the guide rod.

According to the utility model discloses electronic equipment of second aspect, including the casing and according to the utility model discloses the camera lens module of first aspect, the camera lens module install in the casing.

According to the utility model discloses an electronic equipment is through the camera lens module that sets up above-mentioned first aspect to electronic equipment's wholeness ability has been improved.

Additional aspects and advantages of the invention 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 invention.

Drawings

Fig. 1 is a schematic view of a lens module according to an embodiment of the present invention;

fig. 2 is a schematic view of another angle of the lens module shown in fig. 1;

fig. 3 is an exploded view of the lens module shown in fig. 1;

fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.

Reference numerals are as follows:

10000. an electronic device;

1000. a camera module;

100. a lens module;

110. a base; 111. a guide bar; 112. an upper cover; 113. a base;

120. a carrier; 121. a lens; 122. a guide hole;

130. a drive mechanism; 131. a magnetostrictive member; 132. a coil;

140. a spring.

Detailed Description

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

A lens module 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 3.

As shown in fig. 1, a lens module 100 according to an embodiment of the present invention includes: base 110, carrier 120, and drive mechanism 130.

Specifically, referring to fig. 1, a carrier 120 is movably disposed in a base along an optical axis direction (e.g., the optical axis direction shown in fig. 1), and a lens 121 is disposed on the carrier 120; the driving mechanism 130 includes a magnetostrictive member 131 and a magnetic assembly (e.g., a coil 132 described later), the magnetostrictive member 131 is formed in a columnar shape, both ends of the magnetostrictive member 131 are respectively connected to the carrier 120 and the base 110, and the magnetic assembly is used for generating a magnetic field that acts on the magnetostrictive member 131 to cause the magnetostrictive member 131 to expand and contract in the optical axis direction.

It should be noted that magnetostrictive materials (e.g. iron-nickel alloy) are a class of materials having the function of interconversion between electromagnetic energy and mechanical energy; magnetostrictive materials can convert electrical energy into mechanical energy or mechanical energy into electrical energy. Magnetostriction means that under the action of an alternating magnetic field, an object generates mechanical vibration with the same frequency as the alternating magnetic field; or on the contrary, under the action of tensile and compressive forces, the magnetic flux density in the material is changed correspondingly due to the change of the length of the material, so that induction current is generated in the coil, and the mechanical energy is converted into electric energy.

Referring to fig. 1, since both ends of the magnetostrictive member 131 are respectively connected to the carrier 120 and the base 110, the base 110 is fixed, and the magnetic assembly drives the magnetostrictive member 131 to expand and contract in the direction of the optical axis by generating a magnetic field acting on the magnetostrictive member 131; therefore, when the magnetostrictive member 131 expands and contracts, a driving force is generated on the carrier 120 to realize the movement of the carrier 120, and further realize the movement of the lens 121 on the carrier 120 to realize the focusing of the lens module 100.

Further, the magnetostrictive member 131 is formed in a columnar shape, the telescopic direction of the magnetostrictive member 131 is consistent with the magnetized direction thereof, and the magnetostrictive member 131 is arranged in a columnar shape, so that the magnetized direction thereof is consistent with the extending direction of the magnetostrictive member 131, the extending direction of the magnetostrictive member 131 is consistent with the direction of the optical axis, and further the extension of the magnetostrictive member 131 can provide a driving force for the movement of the carrier 120 in the direction of the optical axis; and the lens module 100 can focus, and compared with the conventional VCM driving, the structure is simpler, and the stroke of the lens 121 moving in the optical axis direction is longer.

Further, by providing the magnetostrictive member 131 in a columnar shape with respect to the magnetostrictive material formed in a sheet shape and a wire shape, the strength of the magnetostrictive member 131 in the extending direction of the magnetostrictive member 131 can be increased, thereby ensuring the stability of the magnetostrictive member 131 with respect to the support 120.

According to the utility model discloses a lens module 100, through setting up the magnetostrictive member 131 that can stretch out and draw back under the influence of magnetic field, when realizing that camera lens 121 focuses, simplified lens module 100's structure, prolonged the stroke that camera lens 121 removed in the optical axis direction.

In an embodiment of the present invention, the magnetostrictive member 131 extends along the optical axis and both ends are fixed with the carrier 120 and the base 110 respectively, the magnetic assembly is fixed on the carrier 120 and/or the base 110, that is, the magnetic assembly can be fixed on the carrier 120, the magnetic assembly can also be fixed on the base 110, and the magnetostrictive member 131 pushes the carrier 120 to move along the optical axis by stretching along the optical axis. In this way, the magnetostrictive member 131 pushes the carrier 120 to move in the optical axis direction, so that the lens 121 moves in the optical axis direction, and the lens module 100 is focused.

In one embodiment of the present invention, referring to fig. 1, the magnetic assembly is formed as a coil 132, and the coil 132 is fixed to the base 110 and sleeved on the radial outside of the magnetostrictive member 131. Like this, establish the coil 132 of establishing in the radial outside of magnetostrictive member 131 as the magnetic component through the setting, coil 132 circular telegram can form the magnetic field in coil 132 is inside, can change the direction of the inside magnetic field of coil 132 through the electric current direction that changes coil 132 and then realize the flexible of magnetostrictive member 131, and the volume that coil 132 occupied is less simultaneously, is favorable to the inside space utilization of lens module 100.

After the coil 132 is energized, the magnetic field direction inside the coil 132 is along the axial direction of the coil 132, and the coil 132 is sleeved on the radial outer side of the magnetostrictive member 131, so that the direction of the magnetic field is consistent in the magnetic field environment where the magnetostrictive member 131 is located, and further the magnetization direction of the magnetostrictive member 131 is consistent with the extension direction of the magnetostrictive member 131, and further the extension direction of the magnetostrictive member 131 can be consistent with the direction of the optical axis, so that a driving force in the optical axis direction is applied to the carrier 120.

Further, the magnetic field intensity inside the coil 132 is relatively large, and the coil 132 is sleeved on the radial outer side of the magnetostrictive member 131, so that the magnetizing speed of the magnetostrictive member 131 can be increased, the time from the energization of the coil 132 to the extension of the magnetostrictive member 131 is shortened, and the working efficiency of the magnetostrictive member 131 is improved.

Specifically, when the direction of the current in the coil 132 is positive, the direction of the magnetic field is positive, the magnetostrictive member 131 elongates, and changing the magnitude of the current can change the degree of elongation of the magnetostrictive member 131; when the direction of the current in coil 132 is reversed, the direction of the magnetic field is reversed, magnetostrictive member 131 shortens, and changing the magnitude of the current changes the degree of shortening of magnetostrictive member 131.

For example, referring to fig. 1, in the initial state of the lens 121, the coil 132 is not energized, the magnetostrictive member 131 is in the initial state, when the lens module 100 is in the near focus = > than the far focus, the magnetostrictive member 131 needs to extend, a forward current is applied to the coil 132, the direction of the magnetic field is a forward direction, the magnetostrictive member 131 extends, the magnitude of the current is adjusted according to the specific requirement that the lens module 100 needs to focus, and the length of the magnetostrictive member 131 is controlled; when the lens module 100 is focused from far focus = > near focus, the magnetostrictive member 131 needs to be shortened, a reverse current is conducted to the coil 132, the direction of the magnetic field is reverse, the magnetostrictive member 131 is shortened, the magnitude of the current is adjusted according to the specific requirement that the lens module 100 needs to be focused, the shortened length of the magnetostrictive member 131 is controlled, the focusing requirement is met, and the purpose of focusing is achieved; after the focusing process is completed, the current is turned off, the magnetic field disappears, and the length of the magnetostrictive member 131 is restored.

In an embodiment of the present invention, referring to fig. 1, a first guiding structure is disposed on the carrier 120, and the base 110 is provided with a second guiding structure, the first guiding structure and the second guiding structure cooperate to guide the carrier 120. In this way, the first guide part and the second guide part which are matched with each other guide the movement of the carrier 120, so as to limit the direction of the movement of the carrier 120, and realize more stable focusing of the lens module 100.

Specifically, in order to realize focusing, the lens 121 only needs to move in the direction of the optical axis to meet different focusing requirements, and the carrier 120 can move in the direction of the optical axis relative to the housing through the first guide structure and the second guide structure which are matched with each other, in a specific implementation process, the driving mechanism 130 provides a driving force for the carrier 120, and the first guide structure and the second guide structure are matched with each other to limit the moving direction of the carrier 120; thereby enabling the lens 121 to move only in the direction of the optical axis, and further achieving more stable focusing of the lens module 100.

Preferably, referring to fig. 3, the first guiding structure is a guiding hole 122, the guiding hole 122 penetrates through the carrier 120 along the optical axis direction, the second guiding structure is a guiding rod 111, and the guiding rod 111 penetrates through the guiding hole 122 to realize sliding connection with the carrier 120. In this way, the guide is more accurate and the structure is simpler by the guide rod 111 and the guide hole 122 which are fitted to each other, so that the carrier 120 can be smoothly moved in the optical axis direction.

Specifically, referring to fig. 1, one end of the magnetostrictive member 131 is fixed on the base 110, and the other end is fixed on the carrier 120; both ends of the guide rod 111 are fixed on the base 110, the carrier 120 is sleeved on the guide rod 111 through the guide hole 122, and when the magnetostrictive member 131 extends, the carrier 120 is pushed, so that the carrier 120 moves along the extending direction (for example, the optical axis direction shown in fig. 1) of the guide rod 111, and further the lens 121 moves along the optical axis direction, thereby achieving the purpose of focusing.

In an embodiment of the present invention, referring to fig. 1, the guiding holes 122 are plural, the guiding holes 122 are arranged along the circumferential interval of the lens 121, the guiding rod 111 includes a plurality of guiding holes, and the guiding rod 111 is matched with the guiding holes 122 in a one-to-one manner. In this way, by arranging the plurality of guide holes 122 at intervals in the circumferential direction of the lens 121, the stability of the movement of the carrier 120 driven by the magnetostrictive member 131 can be further ensured, the carrier 120 is prevented from tilting during the movement, and the focusing of the lens module 100 is ensured.

For example, referring to fig. 1, the number of the guide holes 122 is two, and the two guide holes 122 are symmetrically arranged in the radial direction of the lens 121, that is, the line connecting the centers of the two guide holes 122 passes through the center of the lens 121, so that when the magnetostrictive member 131 is elongated, the stability of the movement of the carrier 120 in the optical axis direction is further ensured. The carrier 120 is prevented from tilting, which affects the normal focusing of the lens module 100.

In an embodiment of the present invention, referring to fig. 1, the lens module 100 may further include: and an elastic member having elasticity and connected between the carrier 120 and the base 110.

Wherein, when the coil 132 is not energized, the elastic member is in a natural extension state; when the coil 132 is energized with a forward current, the magnetostrictive member 131 extends, and the elastic member extends to apply a force to the carrier 120 in a direction away from the carrier 120; when the coil 132 is energized with a reverse current, the magnetostrictive member 131 is shortened, the elastic member is shortened, and a force is applied to the carrier 120 in a direction toward the carrier 120, so that damping is added to the movement of the carrier 120, and the stability of the carrier 120 during movement is further ensured.

In an embodiment of the present invention, the elastic member is a spring 140, the spring 140 is sleeved on the guide rod 111, and two ends of the spring 140 are fixed to the carrier 120 and the base 110, respectively. In this way, the spring 140 can apply a force to the carrier 120 along the optical axis to provide damping for the movement of the carrier 120, and further ensure the stability of the carrier 120 during the movement.

The utility model discloses an embodiment, carrier 120 can be as an organic whole and split type, and when carrier 120 formula as an organic whole, the fixed position of reserving camera lens 121 on carrier 120, in the assembling process of camera lens 121 and carrier 120, only need with camera lens 121 card go into the reservation position on carrier 120 can.

When the carrier 120 is a split type, the carrier 120 may include: the lens 121 is fixed to the first bearing member and the second bearing member and located between the first bearing member and the second bearing member. In the process of assembling the lens 121 and the carrier 120, the lens 121 may be first clamped into the first carrier and then assembled with the second carrier, so as to reduce the difficulty in the assembling process and avoid the lens 121 being damaged in the assembling process.

Wherein, at least one guide hole 122 is formed on any one of the first carrier and the second carrier, and the guide hole 122 on the first carrier and the guide hole 122 on the second carrier are symmetrically arranged about the lens 121. Thus, the lens 121 is provided with the guide holes 122 at symmetrical positions, and the guide holes 122 are matched with the guide posts 111, so that the carrier 120 is prevented from being inclined in the focusing process, and stable focusing of the lens module 100 is ensured.

In an embodiment of the present invention, referring to fig. 2, the base 110 may include: the lens module comprises an upper cover 112 and a base 113, wherein the upper cover 112 is connected with the base 113, the upper cover 112 and the base 113 are respectively positioned at two sides of the carrier 120 in the optical axis direction, and through holes aligned with the lens 121 in the optical axis direction are formed in the upper cover 112 and the base 113. In general, the base 113 is often disposed at the image side of the lens 121, and the upper cover 112 is disposed at the object side of the lens 121, wherein the base 113 may provide mounting positions for the coil 132, the magnetostrictive member 131, and the guide rod 111, and fix the coil 132, the magnetostrictive member 131, and the guide rod 111.

A lens module 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 3.

According to the utility model discloses specific embodiment's lens module 100 can include: base 110, carrier 120, drive mechanism 130, and resilient member.

The base 110 may include: an upper cover 112 and a base 113, wherein the upper cover 112 is connected with the base 113, and the upper cover 112 and the base 113 are respectively positioned at two sides of the carrier 120 in the optical axis direction; the housing is provided with a plurality of guide rods 111, and both ends of the plurality of guide rods 111 are respectively fixed with the upper cover 112 and the base 113.

The carrier 120 is arranged in the shell, and the lens 121 is arranged on the carrier 120; a plurality of guide holes 122 are formed in the carrier 120, and the plurality of guide holes 122 penetrate through the carrier 120 in the optical axis direction; the guide rods 111 include a plurality of guide rods 111, and the plurality of guide rods 111 are fitted in the plurality of guide holes 122 in a one-to-one correspondence.

The driving mechanism 130 includes a coil 132 and a magnetostrictive member 131, the magnetostrictive member 131 is formed in a columnar shape, one end of the magnetostrictive member 131 is fixed to the base 113, and the other end is fixed to the carrier 120; the coil 132 is fitted over the magnetostrictive member 131 in the radial direction.

The elastic member is a spring 140, the spring 140 is sleeved on the guide rod 111, the spring 140 extends along the optical axis direction, and two ends of the spring 140 are respectively connected with the carrier 120 and the base 113.

Specifically, referring to fig. 1 to 3, when the lens module 100 needs to be focused and the magnetostrictive member 131 needs to be extended, the coil 132 is energized with a forward current, the direction of the magnetic field is forward, the magnetostrictive member 131 is extended, and according to the specific requirement that the lens module 100 needs to be focused, the magnitude of the current is adjusted to control the extended length of the magnetostrictive member 131; when the lens module 100 needs to be focused and the magnetostrictive member 131 needs to be shortened, the coil 132 is energized with a reverse current, the direction of the magnetic field is reverse, the magnetostrictive member 131 is shortened, and the carrier 120 moves along the direction of the optical axis under the guiding direction of the guide rod 111 and the guide hole 122; according to the specific requirement of the lens module 100 for focusing, the current is adjusted, the shortened length of the magnetostrictive member 131 is controlled, the focusing requirement is met, and the focusing purpose is realized; after the focusing process is completed, the current is cut off, the magnetic field disappears, and the length of the magnetostrictive member 131 is restored.

According to the utility model discloses a lens module 100, through setting up the magnetostrictive member 131 that can stretch out and draw back under the influence of magnetic field, when realizing that camera lens 121 focuses, simplified lens module 100's structure, prolonged the stroke that camera lens 121 removed in the optical axis direction.

According to the utility model discloses electronic equipment 10000 of second aspect embodiment, refer to fig. 2, including casing and camera module 1000, camera module 1000 is installed and is in the casing, and wherein, camera module 1000 includes according to the utility model discloses above-mentioned first aspect embodiment's lens module 100.

According to the utility model discloses electronic equipment 10000 through the camera lens module 100 that sets up above-mentioned first aspect embodiment to electronic equipment 10000's wholeness ability has been improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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

While embodiments of the present invention 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 invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A lens module, comprising:

a base;

the carrier is movably arranged on the base along the direction of an optical axis, and a lens is arranged on the carrier;

the driving mechanism comprises a magnetostrictive member and a magnetic assembly, the magnetostrictive member is columnar, the magnetostrictive member is respectively connected with the carrier and the base, and the magnetic assembly is used for generating a magnetic field acting on the magnetostrictive member so as to enable the magnetostrictive member to stretch and retract along the direction of the optical axis.

2. The lens module as claimed in claim 1, wherein the magnetostrictive member extends along an optical axis and has both ends fixed to the carrier and the base, respectively, and the magnetic assembly is fixed to the carrier and/or the base, and the magnetostrictive member pushes the carrier to move along the optical axis by telescoping along the optical axis.

3. The lens module as claimed in claim 2, wherein the magnetic assembly is formed as a coil fixed to the base and fitted over a radially outer side of the magnetostrictive member.

4. The lens module as claimed in claim 1, wherein the carrier has a first guide structure thereon, and the base has a second guide structure thereon, the first guide structure and the second guide structure cooperating to guide the carrier.

5. The lens module as claimed in claim 4, wherein the first guiding structure is a guiding hole, the guiding hole penetrates through the carrier along the optical axis direction, the second guiding structure is a guiding rod, and the guiding rod is inserted into the guiding hole to realize sliding connection with the carrier.

6. The lens module according to claim 5, wherein the guide holes are plural, the plural guide holes are arranged at intervals along a circumferential direction of the lens, the guide rods include plural ones, and the plural guide rods are fitted to the plural guide holes in a one-to-one correspondence.

7. The lens module as recited in claim 1, further comprising: the elastic piece is a spring, and two ends of the spring are respectively fixed with the carrier and the base.

8. The lens module as recited in claim 1, wherein the carrier includes: the first bearing piece and the second bearing piece are arranged in a plane perpendicular to the optical axis at intervals and oppositely, and the lens is fixed with the first bearing piece and the second bearing piece and is positioned between the first bearing piece and the second bearing piece.

9. The lens module as claimed in claim 1, wherein the base includes: the upper cover is connected with the base, the upper cover is located on the two sides of the optical axis direction of the carrier, and through holes aligned with the lens in the optical axis direction are formed in the upper cover and the base.

10. An electronic device comprising a housing and the lens module of any one of claims 1-9, the lens module being mounted within the housing.

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