CN211981970U

CN211981970U - Lens motor

Info

Publication number: CN211981970U
Application number: CN202020901317.3U
Authority: CN
Inventors: 董怿
Original assignee: Beijing Kelifor Technology Co ltd
Current assignee: Beijing Kelifor Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-11-20
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a camera lens motor for drive lens subassembly removes, the camera lens motor includes the shell, install the fixed part to the shell and movably install the support that is used for installing the camera lens subassembly on the fixed part, the support is including the main part that is used for installing the drive magnetite, one side that deviates from the drive magnetite of main part is used for setting up the camera lens subassembly, install the magnetic sheet of inhaling that can be inhaled by drive magnetite magnetism on the camera lens subassembly, so that the camera lens subassembly can be inhaled to the main part by magnetism. Compared with the traditional lens motor, the traditional carrier structure is omitted, the distance from the lens assembly to the shell is reduced, the size of the lens motor and the camera module is reduced, and the screen occupation ratio can be effectively increased. In addition, the lens subassembly can be directly assembled to the support of lens motor at the module factory, avoids the production flow of overlength to produce the influence to the cleanliness of lens subassembly to guarantee the best performance of lens subassembly.

Description

Lens motor

Technical Field

The present disclosure relates to the field of optical technologies, and in particular, to a lens motor.

Background

The camera module is widely applied to mobile terminals such as mobile phones and tablet computers, and the camera module generally adopts a lens motor to drive a lens so as to realize a focusing function. In a conventional camera module, a lens motor includes a driving magnet, an electromagnetic coil, a base and a carrier, the driving magnet is installed on the carrier, the electromagnetic coil is installed on the base, and a lens is installed in the carrier. Wherein, the carrier is usually for enclosing all around and have the structure of certain thickness, and after the camera lens installation was accomplished, the camera lens had the carrier with the cladding between the shell in the motor outside to lead to the distance between camera lens and the shell great, this has produced very big resistance to the problem of solving the screen and accounting for the ratio in the appearance industrial design. In addition, according to the traditional manufacturing process, the lens barrel of the lens is designed into the shape of the carrier, and the magnet or the coil is assembled in a motor factory, so that the process flow is too long, and the lens is easily polluted. In the other method, after all the components are assembled, the lenses are loaded from the lens factory, which also causes cost increase due to yield problem.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a lens motor to solve the technical problems of large occupied space of a camera module and easy pollution of a lens in the related art.

In order to realize the above-mentioned purpose, this disclosure provides a camera lens motor for drive lens subassembly removes, its characterized in that, the camera lens motor includes the shell, install to the fixed part of shell and movably install be used for installing the support of camera lens subassembly on the fixed part, the support is including the main part that is used for installing the drive magnetite, deviating from of main part one side of drive magnetite is used for setting up the camera lens subassembly, install on the camera lens subassembly can by the magnetism piece of inhaling that the drive magnetite is inhaled, so that the camera lens subassembly can be inhaled by magnetism to the main part.

Optionally, a side wall of the lens assembly not connected to the bracket is directly opposite to a side wall of the housing.

Optionally, the holder further includes first limiting portions formed by bending at two sides of the main body to limit the lens assembly in a direction perpendicular to an optical axis of the lens.

Optionally, the support still includes from the spacing portion of the upper end of main part or the second of lower extreme bending type, magnetism-absorbing sheet sets up keeping away from of lens subassembly one side of the spacing portion of second makes the drive magnetite can be right magnetism-absorbing sheet produces the orientation the magnetic attraction of the spacing portion of second.

Optionally, an opening corresponding to the magnetic suction sheet is formed on the main body.

Optionally, the fixing portion includes a sliding rod for supporting the bracket to slide, and the bracket further includes a sliding groove bent outward from the main body to cooperate with the sliding rod.

Optionally, the fixing part includes a support plate for mounting the electromagnetic coil and a receiving groove formed by bending from the support plate for mounting the slide bar.

Optionally, a side of the support plate remote from the electromagnetic coil is welded or glued to a side wall of the housing.

Optionally, the housing is made of metal, and the support plate is configured as a magnetically permeable sheet.

Optionally, the lens motor further includes the magnetic suction sheet.

Through above-mentioned technical scheme, the drive magnetite of one side-mounting of support, opposite side installation lens subassembly, the lens subassembly is inhaled to the main part on by magnetism under the effect of drive magnetite through inhaling the magnetic sheet for lens subassembly and the relative fixed mounting of support. Compared with the traditional lens motor, the traditional closed carrier structure sleeved in the circumferential direction of the lens component is omitted, the lens component can be installed only by magnetically attracting the lens component at one side of the lens component through the bracket, the distance from the lens component to the shell is reduced, and therefore the volumes of the lens motor and the camera module are reduced. In addition, because the lens subassembly is installed through the mode of magnetism in this disclosure, the lens subassembly can be directly assembled to the support of lens motor at the module factory on, avoids the production flow of overlength to produce the influence to the cleanliness of lens subassembly to guarantee the best performance of lens subassembly.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a mounting of a bracket and a magnetic attraction sheet according to an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic view of a mounting of a bracket and a magnetic-absorbing sheet according to another exemplary embodiment of the present disclosure;

fig. 3 is an exploded schematic view of a camera module according to an exemplary embodiment of the present disclosure;

fig. 4 is an exploded schematic view of a camera module according to another exemplary embodiment of the present disclosure;

fig. 5 is an exploded schematic view of a camera module according to another exemplary embodiment of the present disclosure;

fig. 6 is an exploded schematic view of a camera module according to another exemplary embodiment of the present disclosure;

fig. 7 is a sectional view of a lens motor with a lens assembly mounted thereto according to an exemplary embodiment of the present disclosure;

fig. 8 is a partial structural diagram of a mobile terminal according to an exemplary embodiment of the present disclosure;

fig. 9 is a schematic partial structure diagram of a mobile terminal according to an exemplary embodiment of the present disclosure.

Description of the reference numerals

11 lens 12 lens holder 121 convex part

21 main body 211, opening 22, first limit part

23 second stopper 24 slide groove 3 drive magnet

4 magnetic suction sheet 5 slide bar 6 electromagnetic coil

7 supporting plate 8 upper cover of shell 81

91 module support 92 base 100 frame

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional words such as "upper, lower, left, right" is defined based on the drawing direction of drawing fig. 7 without making a contrary explanation. The "inner and outer" are relative to the self-profile of the corresponding component. In addition, the terms "first, second, and the like" used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

As shown in fig. 3 to 6, the present disclosure provides a camera module, which may include a lens assembly, a lens motor for driving the lens assembly, and a module support 91 for supporting the lens motor, wherein the lens motor may include a housing 8, a fixing portion mounted to the housing 8, and a bracket movably mounted on the fixing portion for mounting the lens assembly, referring to fig. 1 and 2, the bracket may include a main body 21 for mounting a driving magnet 3, the lens assembly is disposed on a side of the main body 21 away from the driving magnet 3, and a magnetic attraction sheet 4 capable of being magnetically attracted by the driving magnet 3 is mounted on the lens assembly, so that the lens assembly can be magnetically attracted to the main body 21, wherein the magnetic attraction sheet 4 may be integrally injection-molded with the lens assembly, or the magnetic attraction sheet 4 may be separately welded or bonded to the lens assembly. The side of the lens assembly where the magnetic suction sheet 4 is provided is closer to the main body 21, and the surface profile of the main body 21 matches the profile of the side of the lens assembly so that the side of the lens assembly can be fitted on the main body 21. It should be noted that the lens motor may further include an electromagnetic coil 6, and the driving magnet 3 is engaged with the electromagnetic coil 6 to provide an electromagnetic driving force for the lens motor.

Through above-mentioned technical scheme, drive magnetite 3 is installed to one side of support, and the camera lens subassembly is installed to the opposite side, and the camera lens subassembly is inhaled to main part 21 on by magnetism under the effect of drive magnetite 3 through magnetic-attracting piece 4 for camera lens subassembly and the relative fixed mounting of support. Compared with the traditional lens motor, the traditional closed carrier structure sleeved in the circumferential direction of the lens component is omitted, the lens component can be installed only by magnetically attracting the lens component at one side of the lens component through the bracket, the distance from the lens component to the shell is reduced, and therefore the volumes of the lens motor and the camera module are reduced. In addition, because the lens subassembly is installed through the mode of magnetism in this disclosure, the lens subassembly can be directly assembled to the support of lens motor at the module factory on, avoids the production flow of overlength to produce the influence to the cleanliness of lens subassembly to guarantee the best performance of lens subassembly.

In particular, the side wall of the lens assembly not connected to the bracket may be directly opposite to the side wall of the housing 8. Referring to fig. 7, in the direction of the drawing of fig. 7, the left side of the lens assembly is connected to the main body 21 through the magnetic attraction sheet 4, and the right side of the lens assembly is disposed adjacent to the outermost housing 8, in other words, only an assembly gap capable of driving the lens assembly to move up and down by the holder is provided between the lens assembly and the side wall of the housing 8, so that the distance between the small lens assembly and the housing 8 can be minimized, thereby reducing the profile of the housing 8. When the holder is disposed only on the left side of the lens module, the side wall of the lens module perpendicular to the paper surface may have only a fitting gap with the housing 8.

In the embodiment of the present disclosure, as shown in fig. 1 to 6, the bracket further includes first limiting portions 22 formed by bending at two sides of the main body 21 to limit the lens assembly in a direction perpendicular to the optical axis of the lens, that is, the lens assembly may be disposed between the two first limiting portions 22, so as to limit the lens assembly in a direction perpendicular to the paper surface as shown in fig. 7, and ensure the mounting stability of the lens assembly.

Similarly, with reference to fig. 1 to 6, the bracket further includes a second limiting portion 23 formed by bending the upper end or the lower end of the main body 21, and the magnetic attraction sheet 4 is disposed on one side of the lens assembly away from the second limiting portion 23, so that the driving magnet 3 can generate magnetic attraction force towards the second limiting portion 23 to the magnetic attraction sheet 4. Specifically, in the embodiment of fig. 1, 3 to 5, the second position-limiting portion 23 is formed at the upper end of the main body 21, a platform capable of overlapping the second position-limiting portion 23 may be formed on the lens assembly, and the lens assembly may pass through the module support 91 from below the mounted motor and then abut against the second position-limiting portion 23. And under this condition, magnetism-absorbing sheet 4 can set up the downside at the lens subassembly, is corresponding to the downside of drive magnetite 3 promptly, thereby be located the left drive magnetite 3 of main part 21 and can produce a power to the upper left to the magnetism-absorbing sheet 4 of downside for the lens subassembly pastes on main part 21 left, and upwards pastes on spacing portion 23 of second, thereby realizes the spacing effect from top to bottom of lens subassembly, has further guaranteed the stable installation of lens subassembly. In the embodiment shown in fig. 2 and 6, the second position-limiting portion 23 may be formed at the lower end of the main body 21, in which case the housing 8 may be constructed as a frame without the upper cover 81, the lens assembly may be mounted to the bracket from above the motor after the mounting is completed, and the magnetic-attracting sheet 4 is disposed at the upper side of the lens assembly at this time, so that the driving magnet 3 generates a downward and leftward force to the magnetic-attracting sheet 4 to fix the lens assembly, and finally the upper cover 81 is covered to complete the mounting.

Further, referring to fig. 1 and 2, the main body 21 is formed with an opening 211 corresponding to the magnetic suction sheet 4. When the lens assembly is mounted, the magnetic attraction sheet 4 is received in the opening 211 and directly contacts with the driving magnet 3, so as to enhance the magnetic attraction effect of the driving magnet 3 on the magnetic attraction sheet 4.

When the magnetic suction sheet 4 is formed by injection molding with the lens assembly as described above, the magnetic suction sheet 4 may be formed in a lens factory together with the lens assembly, or in an embodiment of the present disclosure, in practical applications, the lens motor may further include the magnetic suction sheet 4, the magnetic suction sheet 4 may also be formed as a part of the lens motor, and the lens assembly and the magnetic suction sheet 4 are mounted in an adhesion or welding manner during an assembly process of the camera module.

According to an embodiment of the present disclosure, the fixing portion includes a sliding rod 5 for supporting the bracket to slide, and the bracket may further include a sliding groove 24 bent outward from the main body 21 for cooperating with the sliding rod 5. The slide groove 24 is matched with the slide rod 5, so that the support can drive the lens assembly to move up and down along the slide rod 5. Accordingly, the fixing part further includes a support plate 7 for mounting the solenoid 6 and a receiving groove bent from the support plate 7 for mounting the slide bar, where the solenoid 6 is disposed opposite to the driving magnet 3, the receiving groove is disposed opposite to the sliding groove 24, and the slide bar 5 may be bonded to the receiving groove.

In the disclosed embodiment, the side of the support plate 7 remote from the electromagnetic coil 6 may be welded or bonded to the side wall of the housing 8. Compared with the traditional camera module with the base, the camera module can omit the base and is connected to the shell 8 through the supporting plate 7 to realize the supporting and fixing of the fixing part, so that the lens component can be conveniently installed in a module factory, and the material cost can be saved. However, in order to satisfy the existing module production process, the base 92 may be provided as shown in fig. 4, which is not specifically limited by the present disclosure.

In the embodiment of the present disclosure, the housing 5 may be made of metal and configured as a magnetic yoke, the magnetic yoke may concentrate magnetic flux to increase electromagnetic force, and the support plate 7 may be configured as a magnetic conductive sheet to constrain the direction of magnetic flux and concentrate the distribution of magnetic flux, thereby avoiding magnetic flux leakage, improving the utilization rate of the magnetic field and saving energy.

Referring to fig. 3 to 6, the lens assembly may include a lens 11 and a lens holder 12 for mounting the lens 11, the lens 11 and the lens holder 12 are formed as one body, and an upper surface of the lens holder 12 may be formed with a convex portion 121 protruding upward to contact the housing 8. In the upward movement process of the lens assembly, the movement of the lens assembly is limited upwards by the protrusion part 121 abutting against the upper surface of the shell 8, and the lens assembly is stopped.

The shape of the camera module can be configured in various ways, the housing 8 of the conventional camera module is generally square as shown in fig. 3 and 4, and in the disclosed example, in order to reduce the installation area of the camera module as much as possible, the edge of the camera module can also be configured in a circular arc shape, as shown in fig. 5, and the lens assembly and the module holder 91 are both formed with circular arc-shaped edges. Referring to the effect diagrams of fig. 8 and 9 after two camera modules are installed on the mobile terminal, in contrast, when the arc-shaped camera module is installed on a terminal such as a mobile phone, the edge area of the mobile terminal can be better utilized by the arc-shaped edge, so that the lens 11 occupies less space on the screen, and the screen occupation ratio is further increased.

According to the second aspect of the present disclosure, as shown in fig. 8 and 9, there is also provided a mobile terminal including the camera module described above, and having all the advantages of the camera module described above. After the camera module is installed, the upper direction of the drawing direction in fig. 8 and 9 corresponds to the right direction of the drawing direction in fig. 7, and based on the above description, after the cradle of the disclosed example is used, the lens assembly is closer to the frame 100 of the mobile terminal in fig. 8 and 9, so that the lens 11 is closer to the edge position of the mobile terminal, thereby increasing the screen occupation ratio of the mobile terminal. The mobile terminal may include, but is not limited to, a mobile phone, a tablet computer, and other devices capable of installing a camera module.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a lens motor for drive lens subassembly removes, its characterized in that, lens motor includes shell (8), installs extremely the fixed part of shell (8) is installed with movably being used for on the fixed part installing the support of lens subassembly, the support is including main part (21) that are used for installing drive magnetite (3), deviating from of main part (21) one side of drive magnetite (3) is used for setting up the lens subassembly, install on the lens subassembly can by magnetism suction disc (4) that drive magnetite (3) magnetism was inhaled, so that the lens subassembly can be inhaled by magnetism to main part (21).

2. Lens motor according to claim 1, characterized in that the side wall of the lens assembly not connected to the holder is directly opposite to the side wall of the housing (8).

3. The lens motor according to claim 1, wherein the holder further includes first stopper portions (22) bent at both sides of the body (21) to stopper the lens assembly (1) in a direction perpendicular to a lens optical axis.

4. The lens motor according to claim 1, wherein the holder further includes a second stopper portion (23) bent from an upper end or a lower end of the main body (21), and the magnetic-absorbing sheet (4) is disposed on a side of the lens assembly (1) away from the second stopper portion (23) so that the magnetic-absorbing sheet (4) can be magnetically attracted by the driving magnet (3) toward the second stopper portion (23).

5. The lens motor according to claim 1, wherein an opening (211) corresponding to the magnetic-attracting sheet (4) is formed on the main body (21).

6. The lens motor according to claim 1, wherein the fixing portion includes a slide rod (5) for supporting the bracket to slide, and the bracket further includes a slide groove (24) bent outward from the main body (21) to be engaged with the slide rod (5).

7. The lens motor according to claim 6, wherein the fixing portion includes a support plate (7) for mounting the electromagnetic coil (6) and a receiving groove bent from the support plate (7) for mounting the slide rod (5).

8. Lens motor according to claim 7, characterized in that the side of the support plate (7) remote from the electromagnetic coil (6) is welded or glued to the side wall of the housing (8).

9. Lens motor according to claim 8, characterized in that the housing (8) is made of metal and the support plate (7) is configured as a magnetically conductive sheet.

10. A lens motor according to claim 1, further comprising the magnetic attracting sheet (4).