CN112782826B

CN112782826B - Lens drive mechanism

Info

Publication number: CN112782826B
Application number: CN202011510783.XA
Authority: CN
Inventors: 鲍和平; 彭坤; 林聪�; 刘富泉; 吕新科
Original assignee: Henan Haoze Electronics Co ltd Kunshan Branch
Current assignee: Henan Haoze Electronics Co ltd Kunshan Branch
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2025-06-27
Anticipated expiration: 2040-12-18
Also published as: CN112782826A

Abstract

The invention discloses a lens driving mechanism, which comprises a shell, a carrier, a base, an upper reed, a lower reed and a magnet group, wherein the magnet group is fixedly arranged on the base or the shell, the carrier is provided with a coil corresponding to the magnet group, the upper reed can movably connect the carrier with the shell, the lower reed can movably connect the carrier with the base, and a plurality of first elastic bodies are arranged on the inner surface of the shell so as to prevent the carrier from directly contacting with the inner surface of the shell in the operation process. The lens driving mechanism can effectively prevent the carrier from colliding with the shell and/or the base, so that a more excellent imaging effect is achieved.

Description

Lens driving mechanism

Technical Field

The present invention relates to the field of optics, and in particular, to a lens driving mechanism.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have photographing or video recording functions. The use of these electronic devices is becoming more and more popular and is evolving towards a convenient and light-weight design that provides more options for the user.

Some electronic devices with photographing or video functions are provided with a lens driving module to drive an optical component such as a lens to move, thereby achieving the functions of auto focus (autofocus) and optical anti-shake (Optical Image Stabilization, OIS). Light can be imaged on a photosensitive element through the optical element.

However, the carrier of the current lens driving module is easy to collide with the housing and the base, so that the carrier, the housing and the base are damaged to different degrees, and particles generated by the collision can also influence the imaging effect.

Disclosure of Invention

The present invention is directed to a lens driving mechanism for solving the above-mentioned problems of the prior art.

In order to solve the above-mentioned problems, according to one aspect of the present invention, there is provided a lens driving mechanism including a housing, a carrier, a base, an upper reed, a lower reed, and a magnet group fixedly mounted on the base or the housing, the carrier being provided with a coil corresponding to the magnet group, the upper reed movably connecting the carrier with the housing, the lower reed movably connecting the carrier with the base, wherein an inner surface of the housing is provided with a plurality of first elastic bodies to prevent the carrier from directly contacting with the inner surface of the housing during operation.

In one embodiment, the first elastomer is disposed on an inner surface of the housing top wall.

In one embodiment, the top wall of the housing is provided with a plurality of injection holes penetrating from an upper surface of the top wall to a lower surface of the top wall, and the first elastic body is formed by injection molding from the upper surface of the top wall to the lower surface of the top wall.

In one embodiment, the housing is provided with a central opening, the central opening cooperates with the lens, four sides and four corners are formed around the central opening, the first elastic body is disposed on the inner surfaces of the four sides, and the four corners sink to form a sink.

In one embodiment, each of the four side portions is provided with two injection holes, and the elastic body is injection-molded through the two injection holes.

In one embodiment, one of the first elastic bodies is provided for each of the side portions, and the first elastic bodies form a unitary structure.

In one embodiment, the injection molding aperture has an inner wall that is sloped such that the injection molding aperture has a larger opening near the upper surface of the top wall and a smaller opening near the lower surface of the top wall.

In one embodiment, the base is provided with a base-embedded metal sheet, and the base-embedded metal sheet is provided with a second elastomer.

In one embodiment, the base embedded metal sheet has a metal sheet upper surface facing the carrier lower surface and a metal sheet lower surface opposite the metal sheet upper surface, and the second elastomer is disposed on the metal sheet upper surface and is configured to prevent the carrier from directly contacting the base embedded metal sheet.

In one embodiment, the metal sheet embedded in the base is disposed in the base, and an opening is disposed at a position corresponding to the second elastic body on the base, so that the second elastic body protrudes out of the upper surface of the base.

In one embodiment, the base embedded metal sheet is provided with a plurality of second elastomer mounting holes, the second elastomer is provided with a connecting column, and the connecting column cooperates with the second elastomer mounting holes to mount the second elastomer to the base embedded metal sheet.

In one embodiment, the elastomeric mounting holes have an inclined inner surface such that a portion of the elastomeric mounting holes adjacent the upper surface of the metal sheet has a large radius and a portion adjacent the lower surface of the metal sheet has a small radius.

In one embodiment, the carrier has a carrier upper surface facing the housing and a carrier lower surface facing the base, the carrier upper surface being provided with a plurality of upper reed connections and the carrier lower surface being provided with a plurality of lower reed connections, the carrier upper surface and the carrier lower surface further being provided with a third elastomer to prevent the carrier upper surface from being in direct contact with the inner surface of the housing and the carrier lower surface from being in direct contact with the upper surface of the base.

In one embodiment, the carrier is provided with a third elastomer mounting hole extending from the carrier upper surface to the carrier lower surface and forming an upper opening in the carrier upper surface and a lower opening in the carrier lower surface, and the third elastomer is disposed in the third elastomer mounting hole and protrudes upward from the carrier upper surface and downward from the carrier lower surface.

In one embodiment, the upper reed mounting parts are formed to protrude from the upper surface of the carrier by a certain distance, a sinking part is formed between two adjacent upper reed mounting parts, and each upper reed mounting part is provided with one of the third elastic body mounting holes.

In one embodiment, the carrier is formed by injection molding, and the third elastomer is formed and disposed within the carrier injection mold prior to the carrier injection molding and is secured within the third elastomer mounting hole after the carrier is formed.

The lens driving mechanism can effectively prevent the carrier from colliding with the shell and/or the base, so that a more excellent imaging effect is achieved.

Drawings

Fig. 1 is an exploded perspective view of a lens driving mechanism according to an embodiment of the present invention.

Fig. 2 is a perspective view of a housing of one embodiment of the present invention.

Fig. 3 is a bottom view of the housing of one embodiment of the present invention.

Fig. 4 is a top view of a housing of one embodiment of the present invention.

Fig. 5 is a bottom view of the housing of one embodiment of the present invention without the first elastomer mounted.

Fig. 6 is a top view of the housing of one embodiment of the present invention without the first elastomer mounted.

Fig. 7 is a top view of a base-embedded sheet metal of one embodiment of the present invention.

Fig. 8 is a bottom view of a base-embedded sheet metal of one embodiment of the present invention.

Fig. 9 is a top view of a base of one embodiment of the present invention.

Fig. 10 is a top view of a carrier according to one embodiment of the invention.

Fig. 11 is a bottom view of a carrier according to one embodiment of the invention.

FIG. 12 is a top view of a third elastomeric component in accordance with one embodiment of the present invention.

Fig. 13 is a top view of a carrier with a third elastomeric component mounted thereto.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present invention will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the invention, but rather are merely illustrative of the true spirit of the invention.

In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present invention, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

Fig. 1 is an exploded perspective view of a lens driving mechanism 100 according to an embodiment of the present invention. As shown in fig. 1, a lens driving mechanism 100 according to an embodiment of the present invention includes a housing 10, an upper reed 20, a magnet group 30, a carrier 40, a lower reed 50, a base 60, and a base embedded metal sheet 70. The base embedded metal sheet 70 is arranged in the base 60, the magnet group 30 is fixedly arranged on the shell 10 or the base 60, the carrier 40 is used for installing a lens and is provided with a coil correspondingly matched with the magnet group 30, the upper reed 20 can movably connect the upper surface of the carrier 40 with the shell 10, and the lower reed 50 can movably connect the lower surface of the carrier 40 with the base 60. The housing 10 is engaged with the base 60 and the upper reed 20, the magnet group 30, the carrier 40, and the lower reed 50 are mounted in a space defined by the housing 10 and the base 60. When the coils in the carrier 40 are electrified, the coils interact with a magnetic field formed by the magnet group 30 to drive the carrier 30 and further drive the lens arranged in the carrier 30, so that the functions of automatic focusing, optical anti-shake and the like are realized.

Since the carrier 30 collides with the inner wall of the housing 10 or the base, etc. during operation, fine particles are generated when colliding with the inner wall of the housing 10, and the particles interfere with imaging of the lens to affect the effect, the present invention avoids the carrier 40 from directly contacting with the housing 10 or the base 40 by adding an elastomer to the housing 10 and/or the base 60 and/or the carrier 40, thereby avoiding the occurrence of such a situation and realizing a higher quality imaging effect.

The housing 10, carrier 40, and base 60 of various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Fig. 2 is a perspective view of the housing 10, fig. 3 is a bottom view of the housing 10, and fig. 4 is a top view of the housing 10. As shown in fig. 2-4, the housing 10 includes a housing top 11 and a housing side 12, a middle portion of the housing top 11 forming a top opening 13, the housing side 12 being integrally formed with the housing top 11 and extending generally perpendicular to the housing top 11 toward the base. The housing top 11 has a rectangular structure as a whole, one housing side 12 being connected to each side of the rectangular structure, and one housing top 11 and four housing sides 12 being formed as a whole.

Four corners of the housing top 11 are sunk in the direction of the base 60 to form sunk portions 14, and an elastic body mounting portion 15 is formed between each two sunk portions 14, and the elastic body mounting portion 15 and the sunk portions 14 are arranged around the top opening 13. The elastic body mounting portion 15 is provided with a first elastic body 90. Wherein the housing top 11 has a lower surface 112 facing the base 40 and an upper surface 111 opposite the lower surface 112. The first elastic body 90 is disposed on the lower surface 112 of the top 11 of the housing, specifically, the lower surface of the elastic body mounting portion 15, so as to avoid the carrier 40 from directly contacting the lower surface 112 of the top of the housing 10 during movement.

In the embodiment shown in fig. 2-4, one first elastomer 90 is provided per elastomer mount 15, such that four first elastomers 90 are provided at the lower surface 112 of the top 11 of the housing 10, that is, one first elastomer 90 is provided between each two dips 14. It should be noted that, as will be understood by those skilled in the art, each of the elastic body mounting portions 15 may be provided with a plurality of first elastic bodies.

Fig. 5-6 are bottom and top views, respectively, of the housing 10 without the first elastomer 90 mounted thereto. Referring to fig. 2-6, each of the elastomer mounting portions 15 of the housing 10 is provided with an elastomer mounting hole 151, the first elastomer 90 includes a main body 91 and a connecting portion 92, the connecting portion 92 is disposed within the elastomer mounting hole 151, and the main body 91 is disposed on the second surface 112 of the top 11. The first elastic body 90 can be fixed to the bottom of the elastic body mounting portion 15 by adding the connection portion 92 and the elastic body mounting hole 151. Specifically, each of the elastic body mounting holes 151 extends from the upper surface 111 of the housing top 11 to the lower surface 112 of the housing top 11 and forms a first opening 113 at the upper surface 111 and a second opening 114 at the lower surface 112. The elastomer mount hole 151 has an inclined inner wall such that the first opening 113 of the elastomer mount hole 151 near the upper surface 111 is larger and the second opening 114 near the lower surface 112 is smaller.

Referring to fig. 2 to 3, the width of the body 91 of each first elastic body 90 is equal to the width of the elastic body mounting portion 15, i.e., the body 91 of the first elastic body 90 is spread over the lower surface of the elastic body mounting portion 15 in the width direction of the elastic body mounting portion 15. Preferably, the outer side of the body 91 of the first elastic body 90 has a shape matching with the peripheral portion of the top opening 13 of the housing 10 and is aligned with the peripheral portion of the top opening 13, so that the carrier 40 is only contacted with the body 91 of the first elastic body 90 during movement, effectively avoiding collision of the carrier 40 with the housing 10. Further, in order to effectively prevent the carrier 40 from colliding with the top lower surface 112 of the housing 10, the thickness of the main body 91 of the first elastic body 90 is preferably greater than a certain value, for example, greater than or equal to the thickness of the lower housing 10, etc.

The method of disposing the first elastic body 90 on the housing 10 by injection molding will be described below. The elastic body mounting hole 151 of the housing 10 is also referred to as an injection hole, and the body 91 of the first elastic body 90 is formed on the lower surface 112 of the top 11 of the housing 10 and the connection portion 92 of the first elastic body 91 is formed in the elastic body mounting hole 151 by injection molding an elastic body profile into the elastic body mounting hole 151 from the upper surface 111 of the top 11 of the housing 10. The first elastic body 90 may be made of, for example, thermoplastic polyurethane elastomer rubber (TPU), and the molten TPU is injected through the first opening 131 of the elastic body mounting hole 151 and flows into the lower surface 112 of the housing 10 and forms the body 91 of the first elastic body 90 on the elastic body mounting portion 15.

The base of the present invention is described below in connection with fig. 7-9. Fig. 7 is a top view of the base-embedded metal sheet 70, fig. 8 is a bottom view of the base-embedded metal sheet 70, and fig. 9 is a top view of the base 60. As shown in fig. 7 to 9, the base 60 includes a base body 61 and a base-embedded metal sheet 70 provided in the base body 61, the base-embedded metal sheet 70 being formed in a substantially annular shape as a whole and having a metal sheet upper surface 71 facing the carrier lower surface and a metal sheet lower surface 72 opposite to the metal sheet upper surface 71. The sheet metal upper surface 71 is provided with a second elastomer 80 to prevent the carrier 40 from directly contacting the base 60 during movement.

In one embodiment, the base embedded metal sheet 70 is provided with a plurality of second elastomer mounting holes 73, the plurality of second elastomer mounting holes 73 extending from the upper surface 71 of the base embedded metal sheet 70 all the way to the lower surface 72. Specifically, the central portion of the base-embedded metal sheet 70 forms an opening 74, and the opening 74 surrounding the central portion has a plurality of second elastomer mounting portions 75, and the plurality of second elastomer mounting portions 75 are preferably symmetrically arranged in the annular base-embedded metal sheet 70 and are arranged two by two. Two adjacent second elastic body mounting portions 75 are connected by a connecting portion 76. The second elastic body mounting portion 75 has a width larger than that of the connection portion 76 to facilitate mounting of the second elastic body 80. Two second elastic body mounting holes 73 are provided on each second elastic body mounting portion 75. Correspondingly, the second elastic body 80 includes an integrally formed main body portion 81 and a fixing portion 82, the fixing portion 82 integrally protruding from a surface of the main body portion 81 and adapted to be fitted with the second elastic body mounting hole 73 of the base-embedded metal sheet 70. When mounted, the fixing portion 82 is inserted into the second elastic body mounting hole 73, and the main body portion 81 is disposed at the second elastic body mounting portion 75. The fixing portion 82 may be, for example, a connection post from which two connection posts integrally protrude on the surface of the body portion 81, that is, one second elastic body 80 includes one body portion 81 and two connection posts 82, and correspondingly, two second elastic body mounting holes 73 are provided on each of the second elastic body mounting portions 75, and the two connection posts protrude into the two second elastic body mounting holes 73 to be fixed.

In one embodiment, the second elastomer mounting hole 73 has an inclined inner surface such that a portion of the second elastomer mounting hole 73 adjacent to the sheet metal upper surface 71 has a large radius and a portion adjacent to the sheet metal lower surface 72 has a small radius, thereby facilitating the insertion of the fixing portion 82 of the second elastomer 80 into the second elastomer mounting hole 73.

Referring to fig. 9, the base 60 is provided with an opening 62 corresponding to the body portion 81 of the second elastic body 80 such that the body portion 81 of the second elastic body 80 mounted on the base-embedded metal sheet 70 protrudes from the upper surface of the base 60 when the base-embedded metal sheet 70 is mounted in the base body 61. When the carrier 40 moves towards the base 60, the second elastic body 80 is contacted first, and because the second elastic body 80 has a certain thickness, the carrier 40 can be effectively prevented from directly striking the base 60, the damage of the carrier 40 is effectively prevented, and the small particles generated in the striking process are prevented from polluting the lens to influence the imaging effect.

A carrier 40 and a method of manufacturing the same according to one embodiment of the present invention are described below in conjunction with fig. 10-13. Fig. 10 is a top view of a carrier 40 according to an embodiment of the present invention, and fig. 11 is a bottom view of the carrier 40 according to an embodiment of the present invention. As shown in fig. 10 to 11, the carrier 40 is provided at a central portion thereof with a lens mounting hole 41 for mounting a lens, a body portion 42 of the carrier is formed around the lens mounting hole 41 and has a carrier upper surface 421 and a carrier lower surface 422, the carrier upper surface 421 is provided with a plurality of upper reed connecting portions 423, and the carrier lower surface 422 is provided with a plurality of lower reed connecting portions 424. The carrier upper surface 421 and the carrier lower surface 422 are further provided with a third elastic body 43 to prevent the carrier upper surface 421 from being in direct contact with the inner surface of the housing 10 and to prevent the carrier lower surface 422 from being in direct contact with the upper surface of the base 60. It should be noted that although the carrier 40 is described herein as being provided with the third elastic body on both the carrier upper surface and the carrier lower surface, it will be understood by those skilled in the art that the technical effect of the present invention can be achieved to some extent by providing the third elastic body on one of the carrier upper surface and the carrier lower surface, for example, the collision of the carrier 40 with the inner surface of the housing can be prevented by providing the third elastic body only on the carrier upper surface 421 and the collision of the carrier 40 with the upper surface of the base can be prevented by providing the third elastic body only on the carrier lower surface 422.

In one embodiment, the carrier 40 is provided with the elastomer mounting holes 44, the elastomer mounting holes 44 extend from the carrier upper surface 421 to the carrier lower surface 422 and form an upper opening in the carrier upper surface 421 and a lower opening in the carrier lower surface 422, and the third elastomer 43 is disposed in the elastomer mounting holes 44 and protrudes upward from the carrier upper surface 421 and protrudes downward from the carrier lower surface 422, that is, the elastomer disposed on the carrier upper surface 421 and the elastomer disposed on the carrier lower surface 422 are both ends of the same elastomer. However, it will be understood by those skilled in the art that the elastomer disposed on the upper surface 421 of the carrier and the elastomer disposed on the lower surface 422 of the carrier may be independent of each other, that is, the elastomer disposed on the upper surface 421 of the carrier and the elastomer disposed on the lower surface 422 of the carrier are different elastomers, respectively.

Referring to fig. 10 to 11, the upper opening of the elastic body mounting hole 43 is provided at the upper reed mounting portion while avoiding the contact position of the upper reed with the upper surface of the carrier, and the lower opening of the elastic body mounting hole 43 is provided at the lower reed mounting portion while avoiding the contact position of the lower reed with the lower surface of the carrier. So that the connection of the upper reed and the lower reed is not affected by the arrangement of the third elastic body. In one embodiment, the plurality of elastomer mounting holes 43 are uniformly arranged around the lens mounting hole 41 of the carrier 40, thereby reducing the amount of elastomer while effectively preventing the carrier 40 from colliding with the housing and the chassis.

In one embodiment, upper reed mounting portions 423 are formed protruding a distance from the upper surface 421 of the carrier 40, with a countersink 425 formed between adjacent upper reed mounting portions, each upper reed mounting portion 423 being provided with one of the elastomer mounting holes 43. Similarly, lower reed mounting portions 424 are also formed protruding from the lower surface 422 of the carrier 40 by a distance, with a countersink 426 formed between adjacent lower reed mounting portions, each lower reed mounting portion 424 being provided with one of the elastomer mounting holes 43.

In one embodiment, the elastic body mounting hole 43 is formed with a bypass hole (not shown) near the upper surface 421 of the carrier, the bypass hole communicates with the elastic body mounting hole 43, and the third elastic body is filled in the elastic body mounting hole 43 and the bypass hole.

Referring to fig. 11, in one embodiment, the upper end of the elastic body 44 is provided with an arc-shaped protruding block 441, and the side hole has an arc-shaped peripheral portion, and the arc-shaped protruding block 441 is disposed in the side hole (not shown) of the carrier 40. The side hole may be used as an injection hole of the third elastic body during the manufacturing process of the third elastic body 43.

A method of manufacturing the carrier 40 according to one embodiment of the present invention is described below in conjunction with fig. 12-13. Fig. 12 is a top view of a third elastomer assembly formed by positioning a plurality of third elastomers through a tape according to an embodiment of the present invention, and fig. 13 is a top view of a carrier on which the third elastomer assembly is mounted, as shown in fig. 12 to 13, in which a carrier 40 is formed by injection molding, a third elastomer 44 is formed before the carrier 40 is injection molded and is disposed in a carrier injection molding die, and the third elastomer 44 is fixed in an elastomer mounting hole 43 of the carrier 40 after the carrier 40 is formed.

Referring to fig. 12 and 13, in one embodiment, a plurality of third elastomers 44 are positioned through the web 45, with the third elastomers 44 and portions of the web remaining within the carrier 40 after the carrier 40 is formed. For example, the carrier 40 includes four third elastic bodies 44, the tape 45 has a rectangular frame structure, and four corners of the rectangular frame are connected to the third elastic bodies 44 by connection parts 451 and position the third elastic bodies 44. In one embodiment, the front end of the connection portion 451 is provided with a bending portion 452, the bending portion 452 is provided with an annular ring 453, the annular ring 453 is disposed around the third elastic body 44, the outer diameter of the third elastic body 44 is matched with the inner diameter of the annular ring 453, and the protruding block 441 of the third elastic body 44 is located above the annular ring 453.

Specifically, according to one embodiment of the present invention, the method of manufacturing the carrier 40 may include the steps of:

Step one, referring to fig. 12, fixing the third elastic body 44 by using a material belt 45 to obtain an elastic body assembly 46, wherein the elastic body assembly 46 comprises a plurality of third elastic bodies 44 and the material belt 45;

Step two, referring to fig. 13, the elastomer assembly 46 is placed in a carrier injection mold (not shown) and the carrier 40 is produced by injection molding into the carrier injection mold;

step three, referring to fig. 10-11, the tape of the tape assembly 46 located outside the carrier 40 is removed, for example, the rectangular frame structure of the tape 45 is removed, while a portion of the connection 451 remains, and a plurality of third elastic bodies 44 are disposed in the carrier 40 and protrude from the carrier upper surface 421 and the carrier lower surface 422 at both ends, respectively.

It is noted that the above-described elastic bodies, including the first elastic body, the second elastic body, and the third elastic body, may be made of a material having elasticity, however, preferably, the first elastic body, the second elastic body, and the third elastic body may be made of thermoplastic polyurethane elastomer rubber (TPU).

It should be noted that, the above specifically describes the housing, the base, and the carrier of the lens driving mechanism according to the different embodiments of the present invention, and these housing, base, and carrier may belong to the same lens driving mechanism or may belong to different lens driving mechanisms, that is, the housing of the present invention may be used for other lens driving mechanisms, and the lens driving mechanism does not need to have such a base and carrier according to the present invention. Likewise, the mount of the present invention may be used with other lens driving mechanisms that do not have such housings and carriers as described herein, and the carrier of the present invention may also be used with other lens driving mechanisms that do not have such mounts and housings as described herein. The lens driving mechanism can achieve a certain technical effect by only using any one of the shell, the carrier and the base according to different embodiments of the invention, namely, the collision between the base and the carrier or between the shell and the carrier can be prevented to a certain extent. Of course, if the lens driving mechanism has the housing, the carrier, and the mount described in the above-described different embodiments at the same time, a more excellent technical effect can be achieved so that collision of the carrier with the mount and the housing is completely avoided.

While the preferred embodiments of the present application have been described in detail, it will be appreciated that those skilled in the art, upon reading the above teachings, may make various changes and modifications to the application. Such equivalents are also intended to fall within the scope of the application as defined by the following claims.

Claims

1. The lens driving mechanism is characterized by comprising a shell, a carrier, a base, an upper reed, a lower reed and a magnet group, wherein the magnet group is fixedly arranged on the base or the shell, the carrier is provided with a coil corresponding to the magnet group, the upper reed can movably connect the carrier with the shell, the lower reed can movably connect the carrier with the base, and a plurality of first elastic bodies are arranged on the inner surface of the shell so as to prevent the carrier from directly contacting with the inner surface of the shell in the operation process;

The carrier is provided with a carrier upper surface facing the shell and a carrier lower surface facing the base, the carrier upper surface is provided with a plurality of upper reed connecting parts, the carrier lower surface is provided with a plurality of lower reed connecting parts, and the carrier upper surface and the carrier lower surface are further provided with a third elastomer so as to prevent the carrier upper surface from being in direct contact with the inner surface of the shell and the carrier lower surface from being in direct contact with the upper surface of the base;

The carrier is provided with a third elastomer mounting hole, the third elastomer mounting hole extends from the upper surface of the carrier to the lower surface of the carrier, an upper opening is formed on the upper surface of the carrier and a lower opening is formed on the lower surface of the carrier, and the third elastomer is arranged in the third elastomer mounting hole and protrudes upwards from the upper surface of the carrier and protrudes downwards from the lower surface of the carrier;

The upper reed connecting parts are formed by protruding a certain distance from the upper surface of the carrier, a sinking part is formed between two adjacent upper reed connecting parts, and each upper reed connecting part is provided with a third elastomer mounting hole;

The carrier is formed by injection molding, and the third elastomer is formed before the carrier is formed by injection molding, is arranged in the carrier injection molding die, and is fixed in the third elastomer mounting hole after the carrier is formed;

the plurality of third elastomers are positioned by the tape, and the third elastomers and a part of the tape remain in the carrier after the carrier is molded.

2. The lens driving mechanism according to claim 1, wherein the first elastic body is provided on an inner surface of the housing top wall.

3. The lens driving mechanism according to claim 1, wherein a top wall of the housing is provided with a plurality of injection holes penetrating from an upper surface of the top wall to a lower surface of the top wall, the first elastic body being formed by injection molding from the upper surface of the top wall to the lower surface of the top wall.

4. A lens driving mechanism according to claim 3, wherein the housing is provided with a central opening, the central opening is fitted with the lens, four side portions and four corner portions are formed around the central opening, the first elastic body is provided on inner surfaces of the four side portions, and the four corner portions sink to form a sink portion.

5. The lens driving mechanism according to claim 4, wherein each of the four side portions is provided with two injection holes through which the elastic body is injection-molded.

6. The lens driving mechanism as recited in claim 4, wherein one of said first elastic bodies is provided for each of said side portions, and said first elastic bodies are formed as a unitary structure.

7. A lens driving mechanism according to claim 3, wherein said injection molding hole has an inner wall inclined such that an opening of said injection molding hole near an upper surface of said top wall is larger and an opening near a lower surface of said top wall is smaller.

8. The lens driving mechanism as claimed in claim 1, wherein the chassis is provided with a chassis-embedded metal sheet, and the chassis-embedded metal sheet is provided with a second elastic body.

9. The lens driving mechanism as recited in claim 8, wherein the mount embedded metal sheet has a metal sheet upper surface facing the carrier lower surface and a metal sheet lower surface opposite to the metal sheet upper surface, and the second elastic body is provided on the metal sheet upper surface and is configured to prevent the carrier from directly contacting the mount embedded metal sheet.

10. The lens driving mechanism as claimed in claim 8, wherein the base-embedded metal sheet is disposed in the base, and an opening is provided at a place of the base corresponding to the second elastic body, such that the second elastic body protrudes from an upper surface of the base.

11. The lens driving mechanism as claimed in claim 8, wherein the base-embedded metal sheet is provided with a plurality of second elastic body mounting holes, the second elastic body is provided with a connection post, and the connection post cooperates with the second elastic body mounting holes to mount the second elastic body to the base-embedded metal sheet.

12. The lens driving mechanism as recited in claim 11, wherein said second elastomer mounting hole has an inclined inner surface such that a portion of said second elastomer mounting hole adjacent to an upper surface of said metal sheet has a large radius and a portion adjacent to a lower surface of said metal sheet has a small radius.