CN111025519A

CN111025519A - Lens driving motor, camera and mobile terminal

Info

Publication number: CN111025519A
Application number: CN201911269867.6A
Authority: CN
Inventors: 龚高峰; 王建华; 凌彩盛
Original assignee: Shanghai BL Electronics Co Ltd
Current assignee: Shanghai BL Electronics Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-04-17

Abstract

The invention provides a lens driving motor, a camera and a mobile terminal. Wherein, lens driving motor includes: the shell, the drive magnetite, drive coil, lens cone, lens supporter and lower cover subassembly, the shell sets up on the lower cover subassembly in order to form the accommodation space between the two, drive magnetite, drive coil, lens cone, lens supporter all are located the accommodation space, and the drive coil setting is on the lens supporter, the drive magnetite corresponds the drive coil setting, at least partly setting of lens cone is in the inside of lens supporter, and lens cone and lens supporter be the integrated into one piece structure. The invention solves the problem of complex assembly process of the lens driving motor in the prior art.

Description

Lens driving motor, camera and mobile terminal

Technical Field

The invention relates to the technical field of cameras, in particular to a lens driving motor, a camera and a mobile terminal.

Background

In the prior art, a lens of a lens driving motor is installed in a lens barrel and assembled with a lens support body, but the assembling process is not only complicated, but also has high precision requirement. And after the assembly of the lens support body and the lens barrel is completed, poor torsion and the like are easy to occur. Thereby affecting the performance of the lens driving motor.

Therefore, the conventional technique has a problem that the assembly process of the lens driving motor is complicated.

Disclosure of Invention

The present invention is directed to a lens driving motor, a camera and a mobile terminal, so as to solve the problem of complicated assembling process of the lens driving motor in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a lens driving motor including: the shell, the drive magnetite, drive coil, lens cone, lens supporter and lower cover subassembly, the shell sets up on the lower cover subassembly in order to form the accommodation space between the two, drive magnetite, drive coil, lens cone, lens supporter all are located the accommodation space, and the drive coil setting is on the lens supporter, the drive magnetite corresponds the drive coil setting, at least partly setting of lens cone is in the inside of lens supporter, and lens cone and lens supporter be the integrated into one piece structure.

Furthermore, the outer periphery of the lens support body is provided with two positioning parts, the two positioning parts respectively extend out towards a group of oppositely arranged side walls of the shell, the number of the driving coils is two, and the two driving coils are respectively and correspondingly wound on the two positioning parts.

Furthermore, a positioning bulge is arranged on the positioning part, and the driving coil is wound on the positioning part and is limited and stopped by the positioning bulge.

Furthermore, each positioning part is provided with two positioning bulges, one of the positioning bulges is arranged on one side, close to the lower cover assembly, of the positioning part, and the other positioning bulge is arranged on one side, far away from the lower cover assembly, of the positioning part.

Furthermore, the outer periphery of the lens support body is provided with at least two opposite positioning parts, different positioning parts respectively extend towards different side walls of the shell, the driving coils are wound on the lens support body and cover the positioning parts, the number of the driving magnets is two, and the two driving magnets are respectively arranged on a group of opposite side walls of the shell.

Furthermore, the lens driving motor further comprises a Hall magnet, the lens supporting body is provided with an accommodating concave part, and one side of the Hall magnet, which only faces the Hall element, is exposed out of an opening of the accommodating concave part.

Further, the lens driving motor further comprises an upper spring, an outer ring structure and an inner ring structure of the upper spring are connected through an intermediate structure, a plurality of protruding portions are arranged on the intermediate structure, and at least two protruding portions extend in the direction close to each other and form an oiling gap.

Further, the lower cover assembly includes: a lower cover, wherein a mounting wall extending towards the lens support body is arranged on the circumferential side wall of the lower cover; a lower spring disposed between the lower cover and the lens support body; the PCB board, the PCB board setting is in the installation wall one side that is close to the shell, and the position department that the shell corresponds the PCB board is provided with the position breach of keeping away that supplies the terminal pin group of PCB board to stretch out, and the spring passes through lower cover and PCB board electricity intercommunication down.

Furthermore, the outer periphery of the lower cover is provided with an overlapping flange, and one end of the outer shell close to the lower cover is overlapped on the overlapping flange so as to enable the boundary of the outer shell and the overlapping flange to be flush; and/or the mounting wall is provided with at least one positioning column, and the PCB is provided with at least one positioning hole matched with the positioning column.

Further, the overlapping flange has a plurality of openings, and an end of the housing adjacent to the lower cover has a plurality of protrusions that mate with the plurality of openings.

Further, lens actuating motor still includes hall chip, electric capacity and inductance, and hall chip, electric capacity, inductance all set up in one side of PCB board towards the lens supporter, and the position department that corresponds hall chip, electric capacity, inductance on the installation wall is provided with the opening of stepping down.

Further, end pin group includes four control end pins, and four control end pins are electric with the hall chip.

Further, the terminal pin group at least comprises a first conductive terminal pin and a second conductive terminal pin, a first connecting terminal pin and a second connecting terminal pin are arranged on the lower cover, the lower spring comprises a first sub spring and a second sub spring, the first conductive terminal pin is electrically communicated with the first sub spring through the first connecting terminal pin, the second conductive terminal pin is electrically communicated with the second sub spring through the second connecting terminal pin, the first sub spring and the second sub spring are communicated through a driving coil, and the first conductive terminal pin and/or the second conductive terminal pin are provided with soldering tin holes.

Furthermore, a plurality of glue storage grooves are correspondingly arranged on the lens support body; and/or a plurality of glue dispensing grooves which are respectively positioned at the contact part of the upper spring and the shell.

Furthermore, the corner part of the inside of the shell is also provided with a mounting column for limiting the driving magnet.

According to another aspect of the present invention, there is provided a camera including the lens driving motor described above.

According to another aspect of the present invention, there is provided a mobile terminal including the camera described above.

Further, the mobile terminal comprises at least one of a mobile phone, an information carrying terminal and a notebook computer.

With the technical solution of the present invention applied, the lens driving motor in the present application includes: the shell, the drive magnetite, drive coil, lens cone, lens supporter and lower cover subassembly, the shell sets up on the lower cover subassembly in order to form the accommodation space between the two, drive magnetite, drive coil, lens cone, lens supporter all are located the accommodation space, and the drive coil setting is on the lens supporter, the drive magnetite corresponds the drive coil setting, at least partly setting of lens cone is in the inside of lens supporter, and lens cone and lens supporter be the integrated into one piece structure.

When the lens driving motor with the structure is used, the lens barrel and the lens support body are of an integrated structure, and after the lens is installed in the lens barrel, the lens support body, the lens barrel and the lens form a lens assembly. In the assembly process of the driving motor, the lens assembly replaces a mode that a lens support body and a lens in the conventional process are combined, so that the driving coil can be directly wound on the lens assembly, the assembly procedure between the conventional lens and the lens support body is omitted, the assembly step is saved, and the phenomena of poor torsion and the like after the lens support body and the lens are assembled can be avoided. And, through setting up like this, can be guaranteeing under the original performance of focusing prerequisite, optimize the equipment process flow to promote lens driving motor's overall reliability, but also can save lens driving motor's inner space, realize lens driving motor's miniaturization.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic configuration of a lens driving motor according to an embodiment of the present invention;

FIG. 2 shows an exploded view of the lens drive motor of FIG. 1;

fig. 3 is a schematic view showing a positional relationship between a lens barrel and a lens support body of the lens driving motor in fig. 2;

FIG. 4 is a schematic diagram showing the positional relationship of the drive coil of the lens drive motor, the lens barrel with lens, and the lens support (i.e., lens assembly) of FIG. 2;

FIG. 5 shows a schematic view of the upper spring of the lens driving motor of FIG. 2;

FIG. 6 is a schematic view showing a positional relationship between a mounting post and a driving magnet of the lens driving motor in FIG. 2;

FIG. 7 is a schematic diagram showing the positional relationship of the upper spring and the housing of the lens driving motor of FIG. 2;

fig. 8 is a schematic diagram showing a positional relationship among a PCB board, a hall chip, a capacitor, and an inductor of the lens driving motor of fig. 2;

fig. 9 shows a schematic configuration of a lens barrel in the related art;

fig. 10 shows a schematic structure of a lens holder in the prior art.

Wherein the figures include the following reference numerals:

10. a housing; 11. avoiding gaps; 12. mounting a column; 20. a drive magnet; 30. a drive coil; 40. a lens barrel; 40', a lens barrel; 50. a lens support; 50', a lens support; 51. a positioning part; 52. positioning the projection; 53. an accommodating recess; 54. a glue storage tank; 60. a lower cover assembly; 61. a lower cover; 611. a mounting wall; 612. overlapping the flanges; 613. a positioning column; 614. a abdication opening is formed; 62. a lower spring; 621. a first sub-spring; 622. a second sub-spring; 63. a PCB board; 631. positioning holes; 70. a Hall magnet; 71. a Hall chip; 72. a capacitor; 73. an inductance; 80. an upper spring; 81. a boss portion; 82. coating oil on the gap; 83. dispensing holes; 84. dispensing a glue groove; 90. a terminal pin group; 91. a control terminal pin; 92. a first conductive terminal pin; 93. a second conductive terminal pin.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that the assembly process of the lens driving motor is complex in the prior art, the application provides a lens driving motor, a camera and a mobile terminal.

The mobile terminal in the application comprises the camera in the application. The camera in the present application includes a lens driving motor described below.

Specifically, the mobile terminal includes at least one of a mobile phone, an information carrying terminal, and a notebook computer.

As shown in fig. 1 to 4, the lens driving motor in the present application includes: the lens driving device comprises a shell 10, a driving magnet 20, a driving coil 30, a lens barrel 40, a lens supporting body 50 and a lower cover assembly 60, wherein the shell 10 is arranged on the lower cover assembly 60 to form an accommodating space between the two, the driving magnet 20, the driving coil 30, the lens barrel 40 and the lens supporting body 50 are all located in the accommodating space, the driving coil 30 is arranged on the lens supporting body 50, the driving magnet 20 is arranged corresponding to the driving coil 30, at least one part of the lens barrel 40 is arranged inside the lens supporting body 50, and the lens barrel 40 and the lens supporting body 50 are of an integrally formed structure.

When the lens driving motor having the above-described structure is used, since the lens barrel 40 and the lens support 50 are integrally formed, the lens support 50, the lens barrel 40, and the lens constitute a lens assembly after the lens is mounted in the lens barrel 40. In the assembly process of the driving motor, the lens assembly replaces the mode of combining the lens support 50 and the lens in the conventional process, so that the driving coil 30 can be directly wound on the lens assembly, the assembly process between the conventional lens and the lens support is omitted, the assembly steps are saved, and the phenomena of poor torsion and the like after the lens support and the lens are assembled can be avoided. And, through setting up like this, can be guaranteeing under the original performance of focusing prerequisite, optimize the equipment process flow to promote lens driving motor's overall reliability, but also can save lens driving motor's inner space, realize lens driving motor's miniaturization.

As shown in fig. 9 and 10, the lens barrel 40 'and the lens support body 50' in the related art are not integrally formed structures, and this increases an assembly process of the lens driving motor.

In one embodiment of the present application, the lens support 50 is provided with two positioning portions 51 at the outer periphery side, the two positioning portions 51 respectively extend toward a set of oppositely disposed side walls of the housing 10, the two driving coils 30 are respectively wound on the two positioning portions 51. It should be noted here that the driving coil 30 in the present application is formed by winding the lead wire on the positioning portion 51 a plurality of times. Therefore, the arrangement can not only facilitate the manufacture of the driving coil 30, but also play a certain role in positioning the wound driving coil 30.

Specifically, the positioning portion 51 is provided with a positioning protrusion 52, and the driving coil 30 is wound on the positioning portion 51 and is limited and stopped by the positioning protrusion 52. Through setting up location arch 52, can carry on spacingly to drive coil 30 effectively to can prevent effectively at the in-process of lens support body 50 motion that drive coil 30 from coming off from lens support body 50, and then guarantee lens drive motor's stability effectively. It should be noted that, since the driving coil 30 is wound around the positioning portion 51, the positioning protrusion 52 is located inside the driving coil 30 during actual use, so as to clamp the driving coil 30 and prevent the driving coil 30 from falling off.

Specifically, each positioning portion 51 is provided with two positioning protrusions 52, wherein one positioning protrusion 52 is arranged on one side of the positioning portion 51 close to the lower cover assembly 60, and the other positioning protrusion 52 is arranged on one side of the positioning portion 51 far away from the lower cover assembly 60. By this arrangement, the positioning effect of the positioning projection 52 on the driving coil 30 can be further ensured.

In another embodiment of the present application, the lens support 50 has at least one positioning portion 51 circumferentially disposed, different positioning portions 51 respectively protrude toward different side walls of the housing 10, the driving coil 30 is wound on the lens support 50 and covers the positioning portions 51, at least two driving magnets 20 are provided, and at least two driving magnets 20 are respectively disposed on opposite side walls of the housing 10. It should be noted that, in this embodiment, the number of the driving coils 30 is 1, and the driving coils 30 are wound around the lens support 50 in the circumferential direction.

Specifically, the lens driving motor further includes a hall magnet 70, the lens support 50 is provided with an accommodating recess 53, and only one side of the hall magnet 70 facing the hall element is exposed to an opening of the accommodating recess 53. With this arrangement, the hall magnet 70 can be effectively prevented from falling off from the lens support body 50 while the usability of the hall magnet 70 is ensured.

In the present application, the lens driving motor further includes an upper spring 80, and the upper spring 80 has an oil coating slit 82.

The upper spring 80 is disposed between the housing 10 and the lens support body 50, and the upper spring 80 includes an outer ring structure, an inner ring structure, and an intermediate structure. The outer ring structure is connected with the shell 10; the inner ring structure is connected with the lens support body 50; the outer ring structure and the inner ring structure are connected through an intermediate structure, a plurality of protruding portions 81 are arranged on the intermediate structure, and at least two protruding portions 81 extend in the direction close to each other and form an oiling gap 82.

When the lens driving motor having the above structure is used, since the upper spring 80 is composed of the outer ring structure, the inner ring structure, and the intermediate structure, when the damping oil is added to the upper spring 80, the damping oil can be dotted at the oil coating gap 82 of the intermediate structure. Due to the arrangement of the plurality of bosses 81, the damping oil can be stopped by the plurality of bosses 81, so that the stay time of the damping oil on the upper spring 80 can be effectively prolonged, the buffering and damping effect of the damping oil on the upper spring 80 can be guaranteed, and the vibration generated by the lens support body 50 in the movement process can be effectively reduced. Therefore, the usability of the lens driving motor can be effectively improved by such an arrangement.

It should be noted that, during the movement of the lens support 50, the upper spring 80 will move, and during the movement of the upper spring 80, the lens will vibrate, and the focusing effect will be affected. Therefore, the chattering of the upper spring 80 can be effectively reduced by adding the damping oil to the upper spring 80, thereby securing the focusing. By providing the protrusion 81 to form the oiling gap 82, the damping oil can be stopped to enhance the use effect of the damping oil.

Specifically, the sides of the two protruding portions 81 close to each other have mating surfaces that mate with each other, respectively, and an oil coating gap 82 is formed between the mating surfaces.

In one embodiment of the present application, the two mating surfaces are parallel to each other. By such an arrangement, the two mating surfaces can be effectively prevented from being deformed by being pressed against each other during the movement of the upper spring 80.

Optionally, the two mating surfaces are mating toothed surfaces. Through such setting, can prolong the dwell time of damping oil on last spring 80 effectively to can further improve the buffering shock attenuation effect of damping oil to last spring 80 and reduce the vibrations of going up spring 80.

Optionally, the teeth of the two toothed surfaces are opposite to each other or offset from each other. By arranging the teeth of the two toothed surfaces to face each other, overflow of the damping oil can be effectively prevented. The teeth of the two tooth surfaces are arranged to be staggered with each other, so that the vibration of the upper spring 80 can be reduced when the upper spring 80 is deformed. Therefore, the selection of the specific form of the tooth-shaped surface can be selected according to the strength of the movement of the lens support 50 to be actually used, and the like.

Specifically, the intermediate structure includes a plurality of independent linkage segments each other, and the first end of each linkage segment is connected with the different positions of outer lane structure respectively, and the second end of each linkage segment is connected with the different positions of inner circle structure respectively, and each linkage segment is the multistage strip structure of bending, is formed with fat liquoring gap 82 on at least one linkage segment. In addition, it should be noted that the structure of the plurality of connection segments is the same in the present application.

It should be noted that, in the present application, the plurality of connection segments are uniformly distributed with respect to the inner ring structure and the outer ring structure, and thus, the lens support 50, the upper spring 80 and the housing 10 are uniformly stressed during the movement of the lens support 50.

Optionally, the outer ring structure is a closed loop structure, and the outer ring structure is connected with the intermediate structure at a position corresponding to the corner of the housing 10.

Optionally, the outer ring structure is an open ring structure, and the outer ring structure is connected to the intermediate structure at a position corresponding to the corner of the housing 10.

Optionally, the outer ring structure is an open-loop structure and is formed by a group of straight-edge structures symmetrically arranged on the outer side of the inner ring structure, the end portions of the straight-edge structures are respectively and correspondingly connected with a connecting section, and the second ends of the two connecting sections connected to the same straight-edge section are close to each other and connected with the inner ring structure.

It should be noted that, in an embodiment of the present application, there are four connection sections, the four connection sections are respectively connected to four corners of the outer ring structure correspondingly, and each connection section is provided with two protrusions 81 corresponding to each other to form the oil coating gap 82.

Specifically, the lower cover assembly 60 includes a lower cover 61, a lower spring 62, and a PCB board 63. A mounting wall 611 extending toward the lens support body 50 is provided on a circumferential side wall of the lower cover 61; the lower spring 62 is disposed between the lower cover 61 and the lens support 50; the PCB 63 is disposed on one side of the mounting wall 611 close to the housing 10, and a position avoiding gap 11 for the terminal pin group 90 of the PCB 63 to extend out is disposed at a position of the housing 10 corresponding to the PCB 63, and the lower spring 62 is electrically communicated with the PCB 63 through the lower cover 61. By providing the clearance gap 11, the lens driving motor can be more easily mounted, and the electrical connection of the terminal pin group 90 can be more easily achieved.

Specifically, the outer periphery of the lower cover 61 has a lap flange 612, and one end of the outer shell 10 near the lower cover 61 is lapped on the lap flange 612 so that the outer shell 10 is flush with the boundary of the lap flange 612. By such an arrangement, the overall structure of the lens driving motor can be effectively ensured to be more compact.

Specifically, the mounting wall 611 is provided with at least one positioning post 613, and the PCB 63 is provided with at least one positioning hole 631 matching with the positioning post 613. By this arrangement, the PCB 63 and the lower cover 61 can be stably held by the engagement between the positioning posts 613 and the positioning holes 631. And in the process of installing the PCB 63 on the installation wall 611, the installation of the PCB 63 can be positioned by the cooperation of the positioning column 613 and the positioning hole 631, so that the PCB 63 can be effectively ensured to be accurately installed.

Specifically, the overlap flange 612 has a plurality of openings, and one end of the housing 10 near the lower cover 61 has a plurality of projections that fit into the plurality of openings. It should be noted that, in the present application, the plurality of openings on the overlapping flange 612 are arranged at intervals, and each opening is correspondingly provided with one protrusion, so that the insertion connection between the housing 10 and the lower cover 61 can be realized.

As shown in fig. 8, the lens driving motor further includes a hall chip 71, a capacitor 72, and an inductor 73, wherein the hall chip 71, the capacitor 72, and the inductor 73 are all disposed on one side of the PCB 63 facing the lens support 50, and a relief opening 614 is disposed on the mounting wall 611 corresponding to the hall chip 71, the capacitor 72, and the inductor 73. With this arrangement, the use accuracy of the lens driving motor can be ensured by the interaction between the hall magnet 70, the hall chip 71, the capacitor 72, and the inductor 73. And, by setting up the inductance 73, can play the role of supplementary PCB board 63 internal current stability to adjust PCB board 63 circuit internal current unstability because of various possible losses. Under the stable current value state, the method is favorable for more perfect unification of theoretical operation and actual occurrence conditions, and is favorable for realizing accurate focusing on the target stop position point in a short time.

When current is applied to the driving coil 30, electromagnetic force is generated between the coil and the driving magnet 20, and according to the fleming's left-hand rule, the lens support 50 is driven to move linearly along the optical axis of the lens by the action of the electromagnetic force, and the lens support 50 finally stays at a position at which the resultant force of the electromagnetic force generated between the driving coil 30 and the driving magnet 20 and the elastic force of the upper spring 80 and the lower spring 62 reaches a balanced state. By applying a predetermined current to the driving coil 30, the lens holder 50 can be controlled to move to a target position, thereby achieving the purpose of focusing.

Specifically, the terminal pin group 90 includes four control terminal pins 91, and the four control terminal pins 91 are in electrical communication with the hall chip 71. The four control pins 91 control the voltage of the VCC access circuit on the hall chip 71, the operating voltage inside the VDD device, i.e., the operating voltage of the chip, the SDA serial data line, and the SCL clock data line, respectively. Thereby compensating for the movement of the lens support 50.

Specifically, the terminal pin group 90 at least includes a first conductive terminal pin 92 and a second conductive terminal pin 93, a first connection terminal pin and a second connection terminal pin are disposed on the lower cover 61, the lower spring 62 includes a first sub-spring 621 and a second sub-spring 622, the first conductive terminal pin 92 is electrically communicated with the first sub-spring 621 through the first connection terminal pin, the second conductive terminal pin 93 is electrically communicated with the second sub-spring 622 through the second connection terminal pin, the first sub-spring 621 and the second sub-spring 622 are communicated through the driving coil 30, and the first conductive terminal pin 92 and/or the second conductive terminal pin 93 have solder holes.

It should be noted that in one embodiment of the present application, the first conductive terminal 92 and the second conductive terminal 93 have solder holes. And the solder paste is respectively welded with the first connecting terminal pin and the second connecting terminal pin by the midpoint of the solder hole, thereby realizing the electric connection. And by welding, the stability of connection can be effectively guaranteed.

It should be noted that, in the present application, the first connecting terminal pin and the second connecting terminal pin are embedded inside the lower cover 61, that is, only two connecting ends of the first connecting terminal pin and two connecting ends of the second connecting terminal pin are exposed out of the lower cover 61, and the rest is disposed inside the lower cover 61.

In one embodiment of the present application, both the driving coils 30 and the driving magnets 20 are provided, and the two driving coils 30 are disposed in parallel on the lens support 50. During actual operation, the electrical conduction paths of the driving coil 30 are: first conductive terminal 92 (or second conductive terminal 93) -first connecting terminal (or second connecting terminal) -first sub-spring 621 (or second sub-spring 622) -one of the drive coils 30-the other drive coil 30-second sub-spring 622 (or first sub-spring 621) -second connecting terminal (or first connecting terminal) -second conductive terminal 93 (or first conductive terminal 92).

Optionally, as shown in fig. 5 and 7, the upper spring 80 in the present application is further provided with a plurality of dispensing holes 83 and a plurality of dispensing grooves 84. A plurality of glue storage grooves 54 are correspondingly arranged on the lens support body 50; a plurality of adhesive dispensing grooves 84 are respectively formed at portions where the upper spring 80 contacts the housing 10. This arrangement effectively ensures stable connection of the upper spring 80 to the lens support body 50 and the housing 10.

Specifically, as shown in fig. 6, mounting posts 12 are further provided at corners of the inside of the housing 10 to limit the position of the drive magnet 20. By this arrangement, the stability of the drive magnet 20 inside the housing 10 can be effectively ensured.

It should be noted that a plurality of protrusions 81 may be disposed on the lower spring 62 to form the oiling gap 82.

In the present application, the lens driving motor has two assembly methods, the first method is to wind the lens support 50, then assemble the lens and finally complete the assembly of the lens driving motor. In the second step, the assembly of the lens is completed first, and then the winding is performed.

In the present embodiment, the lens barrel 40 with the lens and the lens support 50 are first processed into a whole, and then the winding process of the positioning portion 51 is performed, which has the advantage of simplifying the subsequent assembly process. In addition, according to actual needs, a process may be employed in which the lens barrel 40 without the lens and the lens support 50 are integrally processed, then the positioning portion 51 is wound, and then the lens is inserted into the lens barrel 40 after the winding is completed. The advantage of this is that the possibility of damage to the lens during assembly can be avoided to the maximum extent. However, whichever of the above two processes is adopted, the problem of poor torsion generated by assembling the lens barrel 40 and the lens support 50 in the conventional process can be thoroughly avoided.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the assembly process of the lens driving motor is effectively shortened;

2. the phenomena of poor torsion and the like after the lens support body and the lens are assembled are avoided;

3. the miniaturization of the lens driving motor is realized.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lens driving motor, comprising: the lens driving device comprises a shell (10), a driving magnet (20), a driving coil (30), a lens barrel (40), a lens supporting body (50) and a lower cover assembly (60), wherein the shell (10) is arranged on the lower cover assembly (60) to form an accommodating space between the shell and the lower cover assembly, the driving magnet (20), the driving coil (30), the lens barrel (40) and the lens supporting body (50) are all located in the accommodating space, the driving coil (30) is arranged on the lens supporting body (50), the driving magnet (20) is arranged corresponding to the driving coil (30), at least one part of the lens barrel (40) is arranged inside the lens supporting body (50), and the lens barrel (40) and the lens supporting body (50) are of an integrally formed structure.

2. The lens driving motor according to claim 1, wherein two positioning portions (51) are provided on an outer peripheral side of the lens support body (50), the two positioning portions (51) protrude toward a set of side walls of the housing (10) that are provided oppositely, and the two driving coils (30) are provided in two, and the two driving coils (30) are wound around the two positioning portions (51) correspondingly.

3. The lens driving motor according to claim 2, wherein a positioning protrusion (52) is provided on the positioning portion (51), and the driving coil (30) is stopped by the positioning protrusion (52) when wound around the positioning portion (51).

4. The lens driving motor according to claim 3, wherein two positioning protrusions (52) are provided on each of the positioning portions (51), one of the positioning protrusions (52) being provided on a side of the positioning portion (51) close to the lower cover member (60), and the other of the positioning protrusions (52) being provided on a side of the positioning portion (51) away from the lower cover member (60).

5. The lens driving motor according to claim 1, wherein the lens support body (50) has at least two positioning portions (51) disposed opposite to each other on an outer peripheral side thereof, different ones of the positioning portions (51) protrude toward different side walls of the housing (10), respectively, and the driving coil (30) is wound around the lens support body (50) and covers the positioning portions (51), the two driving magnets (20) are provided, respectively, on a set of opposite side walls of the housing (10).

6. The lens driving motor according to claim 1, further comprising a hall magnet (70), wherein the lens supporting body (50) is provided with a receiving recess (53), and only one side of the hall magnet (70) facing the hall element is exposed to an opening of the receiving recess (53).

7. Lens driving motor according to any of claims 1-6, characterized in that the lens driving motor further comprises an upper spring (80), the outer ring structure and the inner ring structure of the upper spring (80) are connected by an intermediate structure, and the intermediate structure is provided with a plurality of protrusions (81), and at least two of the protrusions (81) extend in a direction approaching each other and form an oiling gap (82).

8. The lens driving motor according to any one of claims 1 to 6, wherein the lower cover assembly (60) comprises:

a lower cover (61), a circumferential side wall of the lower cover (61) being provided with a mounting wall (611) extending toward the lens support (50);

a lower spring (62), the lower spring (62) being disposed between the lower cover (61) and the lens support (50);

PCB board (63), PCB board (63) sets up installation wall (611) is close to one side of shell (10), just shell (10) correspond the position department of PCB board (63) is provided with the confession the position breach of keeping away (11) that the end foot group (90) of PCB board (63) stretched out, just lower spring (62) pass through lower cover (61) with PCB board (63) electricity communicates.

9. The lens driving motor of claim 8,

the outer periphery of the lower cover (61) is provided with a lap flange (612), and one end of the outer shell (10) close to the lower cover (61) is lapped on the lap flange (612) so that the interface of the outer shell (10) and the lap flange (612) is flush; and/or

The mounting wall (611) is provided with at least one positioning column (613), and the PCB (63) is provided with at least one positioning hole (631) matched with the positioning column (613).

10. The lens driving motor according to claim 9, wherein the overlapping flange (612) has a plurality of openings, and an end of the housing (10) near the lower cover (61) has a plurality of projections which are engaged with the plurality of openings.

11. The lens driving motor according to claim 8, further comprising a Hall chip (71), a capacitor (72), and an inductor (73), wherein the Hall chip (71), the capacitor (72), and the inductor (73) are disposed on a side of the PCB (63) facing the lens support body (50), and a receding opening (614) is disposed on the mounting wall (611) at a position corresponding to the Hall chip (71), the capacitor (72), and the inductor (73).

12. The lens driving motor of claim 11, wherein said terminal pin group (90) comprises four control terminal pins (91), said four control terminal pins (91) being in electrical communication with said hall chip (71).

13. The lens driving motor according to claim 8, wherein the terminal pin group (90) includes at least a first conductive terminal pin (92) and a second conductive terminal pin (93), the lower cover (61) is provided with a first connection terminal pin and a second connection terminal pin, the lower spring (62) includes a first sub-spring (621) and a second sub-spring (622), the first conductive terminal pin (92) is in electrical communication with the first sub-spring (621) through the first connection terminal pin, the second conductive terminal pin (93) is in electrical communication with the second sub-spring (622) through the second connection terminal pin, the first sub-spring (621) and the second sub-spring (622) are in communication through the driving coil (30), and the first conductive terminal pin (92) and/or the second conductive terminal pin (93) has a solder hole.

14. The lens driving motor according to claim 7, wherein said upper spring (80) is further provided with:

a plurality of glue storage grooves (54) are correspondingly arranged on the lens support body (50); and/or

And a plurality of dispensing grooves (84), wherein the dispensing grooves (84) are respectively positioned at the contact part of the upper spring (80) and the shell (10).

15. The lens driving motor according to any one of claims 1 to 6, wherein a mounting post (12) is further provided at a corner portion of the inside of the housing (10) to limit the position of the driving magnet (20).

16. A camera characterized by comprising the lens driving motor of any one of claims 1 to 15.

17. A mobile terminal characterized by comprising the camera of claim 16.

18. The mobile terminal of claim 17, wherein the mobile terminal comprises at least one of a mobile phone, an information carrying terminal, and a notebook computer.