Lens drive motor, camera and mobile terminal

Abstract

The present invention provides a lens drive motor, a camera and a mobile terminal. The lens drive motor includes: a housing, a drive magnet, a drive coil, a lens barrel, a lens support body and a lower cover assembly, the housing is arranged on the lower cover assembly to form an accommodation space between the two, the drive magnet, the drive coil, the lens barrel and the lens support body are all located in the accommodation space, and the drive coil is arranged on the lens support body, the drive magnet is arranged corresponding to the drive coil, at least a part of the lens barrel is arranged inside the lens support body, and the lens barrel and the lens support body are an integrally formed structure. The present invention solves the problem of complicated assembly process of the lens drive motor in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to a lens driving motor, a camera and a mobile terminal. Background Art

[0002] In the prior art, the lens of the lens driving motor is installed in the lens barrel and assembled with the lens support body. However, the assembly process is not only complicated, but also requires high precision. Moreover, after the lens support body and the lens barrel are assembled, torque problems are likely to occur, thereby affecting the performance of the lens driving motor.

[0003] Therefore, there is a problem in the prior art that the assembly process of the lens driving motor is complicated. Summary of the invention

[0004] The main purpose of the present invention is to provide a lens driving motor, a camera and a mobile terminal to solve the problem of complicated assembly process of the lens driving motor in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a lens drive motor is provided, comprising: a shell, a drive magnet, a drive coil, a lens barrel, a lens support body and a lower cover assembly, the shell is arranged on the lower cover assembly to form an accommodating space therebetween, the drive magnet, the drive coil, the lens barrel and the lens support body are all located in the accommodating space, and the drive coil is arranged on the lens support body, the drive magnet is arranged corresponding to the drive coil, at least a portion of the lens barrel is arranged inside the lens support body, and the lens barrel and the lens support body are an integrally formed structure.

[0006] Furthermore, two positioning parts are arranged on the outer peripheral side of the lens support body, and the two positioning parts respectively extend toward a group of oppositely arranged side walls of the shell, and there are two driving coils, and the two driving coils are respectively wound on the two positioning parts.

[0007] Furthermore, a positioning protrusion is provided on the positioning portion, and the driving coil is limited and stopped by the positioning protrusion when it is wound on the positioning portion.

[0008] Furthermore, each positioning portion is provided with two positioning protrusions, wherein one positioning protrusion is provided on a side of the positioning portion close to the lower cover assembly, and the other positioning protrusion is provided on a side of the positioning portion away from the lower cover assembly.

[0009] Furthermore, the outer peripheral side of the lens support body has at least two relatively arranged positioning parts, and different positioning parts extend toward different side walls of the outer shell respectively, and the driving coil is wound on the lens support body and covers the positioning parts. There are two driving magnets, and the two driving magnets are respectively arranged on a group of opposite side walls of the outer shell.

[0010] Furthermore, the lens driving motor also includes a Hall magnet, and a receiving recess is provided on the lens support body, and only one side of the Hall magnet facing the Hall element is exposed at the opening of the receiving recess.

[0011] Furthermore, the lens driving motor also includes an upper spring, the outer ring structure and the inner ring structure of the upper spring are connected by an intermediate structure, and a plurality of protrusions are arranged on the intermediate structure, and at least two protrusions extend in a direction approaching each other and form an oil-coated gap.

[0012] Furthermore, the lower cover assembly includes: a lower cover, a mounting wall extending toward the lens support body is arranged on the circumferential side wall of the lower cover; a lower spring, the lower spring is arranged between the lower cover and the lens support body; a PCB board, the PCB board is arranged on a side of the mounting wall close to the outer shell, and a avoidance notch for the end foot group of the PCB board to extend out is arranged at a position of the outer shell corresponding to the PCB board, and the lower spring is electrically connected to the PCB board through the lower cover.

[0013] Furthermore, the outer periphery of the lower cover has an overlapping flange, and one end of the outer shell close to the lower cover is overlapped on the overlapping flange so that the junction between the outer shell and the overlapping flange is flush; and / or at least one positioning column is provided on the mounting wall, and at least one positioning hole cooperating with the positioning column is provided on the PCB board.

[0014] Furthermore, the overlapping flange has a plurality of openings, and one end of the shell close to the lower cover has a plurality of protrusions that match the plurality of openings.

[0015] Furthermore, the lens drive motor also includes a Hall chip, a capacitor and an inductor, and the Hall chip, the capacitor and the inductor are all arranged on the side of the PCB board facing the lens support body, and a clearance opening is arranged on the installation wall at the position corresponding to the Hall chip, the capacitor and the inductor.

[0016] Furthermore, the terminal pin group includes four control terminal pins, and the four control terminal pins are electrically connected to the Hall chip.

[0017] Furthermore, the end pin group includes at least a first conductive end pin and a second conductive end pin, the lower cover is provided with a first connecting end pin and a second connecting end pin, the lower spring includes a first sub-spring and a second sub-spring, the first conductive end pin is electrically connected to the first sub-spring through the first connecting end pin, the second conductive end pin is electrically connected to the second sub-spring through the second connecting end pin, the first sub-spring and the second sub-spring are connected through a driving coil, and the first conductive end pin and / or the second conductive end pin have a solder hole.

[0018] Furthermore, the upper spring is provided with a plurality of glue dispensing holes, and the lens support body is correspondingly provided with a plurality of glue storage grooves; and / or a plurality of glue dispensing grooves, and the plurality of glue dispensing grooves are respectively located at the contact parts between the upper spring and the outer shell.

[0019] Furthermore, a mounting column is provided at the inner corner of the shell to limit the driving magnet.

[0020] According to another aspect of the present invention, a camera is provided, comprising the above-mentioned lens driving motor.

[0021] According to another aspect of the present invention, a mobile terminal is provided, comprising the above-mentioned camera.

[0022] Furthermore, the mobile terminal includes at least one of a mobile phone, a portable information terminal and a notebook computer.

[0023] Applying the technical solution of the present invention, the lens driving motor in the present application includes: a shell, a driving magnet, a driving coil, a lens barrel, a lens support body and a lower cover assembly, the shell is arranged on the lower cover assembly to form an accommodating space between the two, the driving magnet, the driving coil, the lens barrel, and the lens support body are all located in the accommodating space, and the driving coil is arranged on the lens support body, the driving magnet is arranged corresponding to the driving coil, at least a portion of the lens barrel is arranged inside the lens support body, and the lens barrel and the lens support body are an integrally formed structure.

[0024] When the lens drive motor of the above structure is used, since the lens barrel and the lens support body are an integrally formed structure, after the lens is installed inside the lens barrel, the lens support body, the lens barrel and the lens constitute a lens assembly. In the assembly process of the drive motor, the lens assembly replaces the conventional process of combining the lens support body and the lens, so that the drive coil can be directly wound on the lens assembly, thereby omitting the conventional assembly process between the lens and the lens support body, saving assembly steps, and thus avoiding the phenomenon of poor torque after the lens support body and the lens are assembled. Moreover, by such an arrangement, the assembly process can be optimized while ensuring the original focusing performance, and the overall reliability of the lens drive motor can be improved, and the internal space of the lens drive motor can be saved, and the miniaturization of the lens drive motor can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 A schematic structural diagram of a lens driving motor according to a specific embodiment of the present invention is shown;

[0027] Figure 2 Shows Figure 1 An exploded view of the lens drive motor in FIG.

[0028] Figure 3 Shows Figure 2A schematic diagram of the positional relationship between the lens barrel of the lens drive motor and the lens support body;

[0029] Figure 4 Shows Figure 2 A schematic diagram of the positional relationship of the drive coil of the lens drive motor, the lens barrel with the lens, and the lens support body (i.e., the lens assembly);

[0030] Figure 5 Shows Figure 2 A schematic diagram of the structure of the upper spring of the lens driving motor;

[0031] Figure 6 Shows Figure 2 Schematic diagram of the positional relationship between the mounting post of the lens drive motor and the drive magnet;

[0032] Figure 7 Shows Figure 2 A schematic diagram of the positional relationship between the upper spring and the housing of the lens drive motor;

[0033] Figure 8 Shows Figure 2 Schematic diagram of the positional relationship of the PCB board, Hall chip, capacitor and inductor of the lens drive motor;

[0034] Fig. 9 The structure schematic diagram of the lens barrel in the prior art is shown;

[0035] Fig.10 The figure shows a schematic structural diagram of a lens support body in the prior art.

[0036] The above drawings include the following reference numerals:

[0037] 10. housing; 11. avoidance notch; 12. mounting column; 20. driving magnet; 30. driving coil; 40. lens barrel; 40', lens barrel; 50. lens support; 50', lens support; 51. positioning portion; 52. positioning protrusion; 53. accommodating recess; 54. glue storage tank; 60. lower cover assembly; 61. lower cover; 611. mounting wall; 612. overlapping flange; 613. positioning column; 614. give way Opening; 62, lower spring; 621, first sub-spring; 622, second sub-spring; 63, PCB board; 631, positioning hole; 70, Hall magnet; 71, Hall chip; 72, capacitor; 73, inductor; 80, upper spring; 81, raised portion; 82, oiling gap; 83, glue dispensing hole; 84, glue dispensing groove; 90, terminal pin group; 91, control terminal pin; 92, first conductive terminal pin; 93, second conductive terminal pin. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0040] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0041] In order to solve the problem of complex assembly process of lens drive motor in the prior art, the present application provides a lens drive motor, a camera and a mobile terminal.

[0042] The mobile terminal in the present application includes the camera in the present application, and the camera in the present application includes the following lens driving motor.

[0043] Specifically, the mobile terminal includes at least one of a mobile phone, a portable information terminal and a notebook computer.

[0044] like Figures 1 to 4 As shown, the lens drive motor in the present application includes: a housing 10, a driving magnet 20, a driving coil 30, a lens barrel 40, a lens support body 50 and a lower cover assembly 60. The housing 10 is arranged on the lower cover assembly 60 to form an accommodating space therebetween. The driving magnet 20, the driving coil 30, the lens barrel 40 and the lens support body 50 are all located in the accommodating space, and the driving coil 30 is arranged on the lens support body 50. The driving magnet 20 is arranged corresponding to the driving coil 30. At least a portion of the lens barrel 40 is arranged inside the lens support body 50, and the lens barrel 40 and the lens support body 50 are an integrally formed structure.

[0045] When the lens drive motor of the above structure is used, since the lens barrel 40 and the lens support body 50 are an integrally formed structure, after the lens is installed inside the lens barrel 40, the lens support body 50, the lens barrel 40 and the lens constitute a lens assembly. In the assembly process of the drive motor, the lens assembly replaces the conventional process of combining the lens support body 50 and the lens, so that the drive coil 30 can be directly wound on the lens assembly, thereby omitting the conventional assembly process between the lens and the lens support body, saving assembly steps, and thus avoiding the phenomenon of poor torque after the lens support body and the lens are assembled. Moreover, by such an arrangement, the assembly process can be optimized under the premise of ensuring the original focusing performance, and the overall reliability of the lens drive motor can be improved, and the internal space of the lens drive motor can be saved, and the miniaturization of the lens drive motor can be achieved.

[0046] like Fig. 9 and Fig.10 As shown, in the prior art, the lens barrel 40 ′ and the lens support body 50 ′ are not an integrally formed structure, and this increases the assembly process of the lens driving motor.

[0047] In a specific embodiment of the present application, two positioning parts 51 are provided on the outer peripheral side of the lens support body 50, and the two positioning parts 51 extend toward a group of oppositely arranged side walls of the housing 10, respectively, and there are two drive coils 30, and the two drive coils 30 are respectively wound on the two positioning parts 51. It should be noted here that the drive coil 30 in the present application is formed by winding a wire on the positioning part 51 for multiple times. Therefore, such a setting can not only facilitate the production of the drive coil 30, but also play a certain positioning role for the wound drive coil 30.

[0048] Specifically, a positioning protrusion 52 is provided on the positioning portion 51, and the driving coil 30 is stopped by the positioning protrusion 52 when it is wound on the positioning portion 51. By providing the positioning protrusion 52, the driving coil 30 can be effectively limited, so that the driving coil 30 can be effectively prevented from falling off from the lens support body 50 during the movement of the lens support body 50, thereby effectively ensuring the stability of the lens driving motor. It should also be pointed out that since the driving coil 30 is wound on the positioning portion 51, the positioning protrusion 52 is located inside the driving coil 30 during actual use, so that the driving coil 30 can be clamped and prevented from falling off.

[0049] Specifically, two positioning protrusions 52 are provided on each positioning portion 51, one of which is provided on a side of the positioning portion 51 close to the lower cover assembly 60, and the other is provided on a side of the positioning portion 51 away from the lower cover assembly 60. By such a configuration, the limiting effect of the positioning protrusion 52 on the driving coil 30 can be further ensured.

[0050] In another embodiment of the present application, the lens support 50 has at least one positioning portion 51 arranged circumferentially, and different positioning portions 51 extend toward different side walls of the housing 10, respectively. The driving coil 30 is wound on the lens support 50 and covers the positioning portion 51. There are at least two driving magnets 20, and at least two driving magnets 20 are respectively arranged on opposite side walls of the housing 10. It should be noted that in this embodiment, there is one driving coil 30, and the driving coil 30 is wound along the circumference of the lens support 50.

[0051] Specifically, the lens driving motor further includes a Hall magnet 70, and a receiving recess 53 is provided on the lens support body 50, and only one side of the Hall magnet 70 facing the Hall element is exposed at the opening of the receiving recess 53. By such an arrangement, the Hall magnet 70 can be effectively prevented from falling off from the lens support body 50 while ensuring the performance of the Hall magnet 70.

[0052] In the present application, the lens driving motor further includes an upper spring 80 having an oil-coated slit 82 .

[0053] The upper spring 80 is disposed between the housing 10 and the lens support body 50, and includes an outer ring structure, an inner ring structure, and an intermediate structure. The outer ring structure is connected to the housing 10; the inner ring structure is connected to the lens support body 50; the outer ring structure and the inner ring structure are connected via the intermediate structure, and a plurality of protrusions 81 are disposed on the intermediate structure, and at least two protrusions 81 extend in a direction approaching each other and form an oiling gap 82.

[0054] When using the lens drive motor of the above structure, since the upper spring 80 is composed of an outer ring structure, an inner ring structure and an intermediate structure, when adding damping oil to the upper spring 80, the damping oil can be applied to the oiling gap 82 of the intermediate structure. Since a plurality of protrusions 81 are provided, the plurality of protrusions 81 can play a certain stopping role on the damping oil, thereby effectively extending the residence time of the damping oil on the upper spring 80, thereby ensuring the buffering and shock absorbing effect of the damping oil on the upper spring 80, and further effectively reducing the vibration generated by the lens support body 50 during the movement. Therefore, the use performance of the lens drive motor can be effectively improved by such a setting.

[0055] It should be noted that, since the movement of the lens support 50 will cause the upper spring 80 to move, and the upper spring 80 will vibrate during the movement, which will cause the lens to vibrate, thereby affecting the focusing effect. Therefore, adding damping oil to the upper spring 80 can effectively reduce the vibration of the upper spring 80, thereby ensuring 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.

[0056] Specifically, the two protrusions 81 have mating surfaces that fit together on the sides close to each other, and an oiling gap 82 is formed between the two mating surfaces.

[0057] In a specific embodiment of the present application, the two mating surfaces are parallel to each other. By arranging in this way, during the movement of the upper spring 80, the extrusion deformation caused by the collision between the two mating surfaces can be effectively avoided.

[0058] Optionally, the two mating surfaces are matched toothed surfaces. By arranging in this way, the residence time of the damping oil on the upper spring 80 can be effectively prolonged, thereby further improving the buffering and shock absorbing effect of the damping oil on the upper spring 80 and reducing the vibration of the upper spring 80.

[0059] Optionally, the teeth of the two toothed surfaces are opposite to each other or staggered. By arranging the teeth of the two toothed surfaces to be opposite to each other, the damping oil can be effectively prevented from overflowing. Arranging the teeth of the two toothed surfaces to be staggered can reduce the vibration of the upper spring 80 when the upper spring 80 is deformed. Therefore, the specific form of the toothed surface can be selected according to factors such as the movement intensity of the lens support body 50 actually used.

[0060] Specifically, the intermediate structure includes a plurality of independent connecting segments, the first end of each connecting segment is respectively connected to a different position of the outer ring structure, the second end of each connecting segment is respectively connected to a different position of the inner ring structure, and each connecting segment is a multi-segment bent strip structure, and at least one connecting segment is formed with an oiling gap 82. In addition, it should be noted that in the present application, the structures of the plurality of connecting segments are the same.

[0061] It is worth noting that in the present application, multiple connecting segments are evenly distributed relative to the inner ring structure and the outer ring structure. Through such an arrangement, it can be effectively ensured that the force between the lens support body 50, the upper spring 80 and the outer shell 10 is uniform during the movement of the lens support body 50.

[0062] Optionally, the outer ring structure is a closed-loop structure, and the outer ring structure is connected to the middle structure at a position corresponding to a corner of the outer shell 10 .

[0063] Optionally, the outer ring structure is an open-loop structure, and the outer ring structure is connected to the middle structure at a position corresponding to a corner of the outer shell 10 .

[0064] Optionally, the outer ring structure is an open-loop structure and is composed of a group of straight-edge structures symmetrically arranged on the outside of the inner ring structure, each end of the straight-edge structure is connected to a corresponding connecting segment, and the second ends of the two connecting segments connected to the same straight-edge segment are close to each other and connected to the inner ring structure.

[0065] It should be noted that, in a specific embodiment of the present application, there are four connecting segments, which are respectively connected to the four corners of the outer ring structure, and each connecting segment is provided with two corresponding protrusions 81 to form an oiling gap 82.

[0066] 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 the circumferential side wall of the lower cover 61; the lower spring 62 is provided between the lower cover 61 and the lens support body 50; the PCB board 63 is provided on a side of the mounting wall 611 close to the housing 10, and a clearance notch 11 for the end pin group 90 of the PCB board 63 to extend is provided at a position of the housing 10 corresponding to the PCB board 63, and the lower spring 62 is electrically connected to the PCB board 63 through the lower cover 61. By providing the clearance notch 11, the installation of the lens drive motor can be made easier, and the electrical connection of the end pin group 90 can be made easier.

[0067] Specifically, the outer periphery of the lower cover 61 has an overlap flange 612, and one end of the housing 10 close to the lower cover 61 overlaps the overlap flange 612, so that the junction of the housing 10 and the overlap flange 612 is flush. By this arrangement, the overall structure of the lens drive motor can be effectively ensured to be more compact.

[0068] Specifically, at least one positioning post 613 is provided on the installation wall 611, and at least one positioning hole 631 is provided on the PCB board 63 to cooperate with the positioning post 613. Through such a configuration, the PCB board 63 and the lower cover 61 can be kept stable through the cooperation between the positioning post 613 and the positioning hole 631. In addition, during the process of installing the PCB board 63 to the installation wall 611, the installation of the PCB board 63 can be positioned through the cooperation between the positioning post 613 and the positioning hole 631, thereby effectively ensuring that the PCB board 63 can be accurately installed.

[0069] Specifically, the overlapping flange 612 has a plurality of openings, and the end of the housing 10 close to the lower cover 61 has a plurality of protrusions that match 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 a protrusion, so that the housing 10 and the lower cover 61 can be plugged in.

[0070] like Figure 8As shown, the lens drive motor also includes a Hall chip 71, a capacitor 72 and an inductor 73, and the Hall chip 71, the capacitor 72, and the inductor 73 are all arranged on the side of the PCB board 63 facing the lens support body 50, and a clearance opening 614 is arranged at the position corresponding to the Hall chip 71, the capacitor 72, and the inductor 73 on the mounting wall 611. By setting it in this way, the use accuracy of the lens drive motor can be guaranteed by the interaction between the Hall magnet 70, the Hall chip 71, the capacitor 72 and the inductor 73. In addition, by setting the inductor 73, it can play a role in assisting the stability of the internal current of the PCB board 63 to adjust the current instability caused by various possible losses in the circuit of the PCB board 63. Under the stable current value state, it is conducive to the more perfect unification of theoretical calculation and actual occurrence, which is conducive to achieving accurate focusing on the target stop position point in a short time.

[0071] When current is passed through the driving coil 30, an electromagnetic force is generated between the coil and the driving magnet 20. According to Fleming's left-hand rule, the electromagnetic force drives the lens support 50 to move linearly along the optical axis of the lens. The lens support 50 eventually stays at a position where the combined 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 state of equilibrium. By passing a predetermined current through the driving coil 30, the lens support 50 can be controlled to move to the target position, thereby achieving the purpose of focusing.

[0072] Specifically, the terminal pin group 90 includes four control terminal pins 91, and the four control terminal pins 91 are electrically connected to the Hall chip 71. The four control terminal pins 91 respectively control the voltage of the VCC access circuit on the Hall chip 71, the working voltage inside the VDD device, i.e., the working voltage of the chip, the SDA serial data line, and the SCL clock data line, so as to correct the movement of the lens support body 50.

[0073] Specifically, the end pin group 90 includes at least a first conductive end pin 92 and a second conductive end pin 93, the lower cover 61 is provided with a first connecting end pin and a second connecting end pin, the lower spring 62 includes a first sub-spring 621 and a second sub-spring 622, the first conductive end pin 92 is electrically connected to the first sub-spring 621 through the first connecting end pin, the second conductive end pin 93 is electrically connected to the second sub-spring 622 through the second connecting end pin, the first sub-spring 621 and the second sub-spring 622 are connected through the driving coil 30, and the first conductive end pin 92 and / or the second conductive end pin 93 have a solder hole.

[0074] It should be noted that, in a specific embodiment of the present application, both the first conductive end pin 92 and the second conductive end pin 93 have solder holes. Solder paste is applied to the solder holes to perform laser welding with the first connection end pin and the second connection end pin, respectively, so as to achieve electrical connection. And by performing welding, the stability of the connection can be effectively guaranteed.

[0075] It should also be noted that in the present application, the first connecting end pin and the second connecting end pin are embedded in the lower cover 61, that is, only the two connecting ends of the first connecting end pin and the two connecting ends of the second connecting end pin are exposed from the lower cover 61, and the rest are arranged inside the lower cover 61.

[0076] In a specific embodiment of the present application, there are two driving coils 30 and two driving magnets 20, and the two driving coils 30 are arranged in parallel on the lens support 50. In addition, in the actual working process, the electrical conduction path of the driving coil 30 is: the first conductive end pin 92 (or the second conductive end pin 93) - the first connecting end pin (or the second connecting end pin) - the first sub-spring 621 (or the second sub-spring 622) - one of the driving coils 30 - the other driving coil 30 - the second sub-spring 622 (or the first sub-spring 621) - the second connecting end pin (or the first connecting end pin) - the second conductive end pin 93 (or the first conductive end pin 92).

[0077] Alternatively, if Figure 5 and Figure 7 As shown, the upper spring 80 in the present application is also provided with a plurality of glue dispensing holes 83 and a plurality of glue dispensing grooves 84. The lens support body 50 is correspondingly provided with a plurality of glue storage grooves 54; the plurality of glue dispensing grooves 84 are respectively located at the contact portion between the upper spring 80 and the housing 10. This arrangement can effectively ensure a stable connection between the upper spring 80, the lens support body 50 and the housing 10.

[0078] Specifically, Figure 6 As shown, a mounting column 12 is also provided at the corner of the housing 10 to limit the driving magnet 20. By such a configuration, the stability of the driving magnet 20 inside the housing 10 can be effectively ensured.

[0079] It should be noted that in the present application, a plurality of protrusions 81 may also be provided on the lower spring 62 to form an oiling gap 82 .

[0080] It should be noted that there are two ways to assemble the lens drive motor in the present application. The first way is to first wind the lens support 50, then assemble the lens and finally complete the assembly of the lens drive motor. The second way is to first assemble the lens and then wind the lens.

[0081] In the present embodiment, the lens barrel 40 with lens and the lens support body 50 are first processed into one body, and then the winding process of the positioning part 51 is carried out. The benefit of this process is that the subsequent assembly process is simplified. However, according to actual needs, the lens barrel 40 without lens and the lens support body 50 are first integrated, and then the winding process of the positioning part 51 is carried out, and the lens is loaded into the lens barrel 40 after the winding is completed. Such a benefit can avoid various possibilities of damage to the lens during the assembly process to the maximum extent. But no matter which of the above two processes is adopted, the problem of bad torque generated by the assembly of the lens barrel 40 with lens and the lens support body 50 in the traditional process can be completely avoided.

[0082] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0083] 1. Effectively shorten the assembly process of the lens drive motor;

[0084] 2. Avoid the phenomenon of bad torque after the lens support and lens are assembled;

[0085] 3. The miniaturization of the lens drive motor has been achieved.

[0086] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0087] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lens drive motor, characterized in that: include: A housing (10), a driving magnet (20), a driving coil (30), a lens barrel (40), a lens support body (50), and a lower cover assembly (60), wherein the housing (10) is arranged on the lower cover assembly (60) to form a storage space between the two, the driving magnet (20), the driving coil (30), the lens barrel (40), and the lens support body (50) are all located in the storage space, and the driving coil (30) is arranged on the lens support body (50), and the driving magnet (20) corresponds to the driving coil (30 ) is arranged, at least a part of the lens barrel (40) is arranged inside the lens support body (50), and the lens barrel (40) and the lens support body (50) are an integrally formed structure, the lens drive motor also includes 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 a plurality of protrusions (81) are arranged on the intermediate structure, and at least two of the protrusions (81) extend in a direction approaching each other and form an oil-coated gap (82), and the outer ring structure is connected to the housing (10).

2. The lens driving motor according to claim 1, characterized in that: Two positioning portions (51) are provided on the outer peripheral side of the lens support body (50), and the two positioning portions (51) respectively extend toward a group of oppositely arranged side walls of the housing (10), and there are two drive coils (30), and the two drive coils (30) are respectively and correspondingly wound on the two positioning portions (51).

3. The lens driving motor according to claim 2, characterized in that: A positioning protrusion (52) is provided on the positioning portion (51), and the driving coil (30) is limited and stopped by the positioning protrusion (52) when it is wound on the positioning portion (51).

4. The lens driving motor according to claim 3, characterized in that: Two positioning protrusions (52) are provided on each positioning portion (51), wherein one positioning protrusion (52) is provided on a side of the positioning portion (51) close to the lower cover assembly (60), and the other positioning protrusion (52) is provided on a side of the positioning portion (51) away from the lower cover assembly (60).

5. The lens driving motor according to claim 1, characterized in that: The outer peripheral side of the lens support body (50) has at least two positioning parts (51) arranged opposite to each other, and different positioning parts (51) extend toward different side walls of the housing (10), and the driving coil (30) is wound on the lens support body (50) and covers the positioning parts (51), and there are two driving magnets (20), and the two driving magnets (20) are respectively arranged on a group of opposite side walls of the housing (10).

6. The lens driving motor according to claim 1, wherein: The lens driving motor further comprises a Hall magnet (70), and a receiving recess (53) is provided on the lens support body (50), and only one side of the Hall magnet (70) facing the Hall element is exposed at the opening of the receiving recess (53).

7. The lens driving motor according to any one of claims 1 to 6, characterized in that: The lower cover assembly (60) comprises: A lower cover (61), wherein a mounting wall (611) extending towards the lens support body (50) is provided on a circumferential side wall of the lower cover (61); a lower spring (62), the lower spring (62) being arranged between the lower cover (61) and the lens support body (50); A PCB board (63), the PCB board (63) being arranged on a side of the mounting wall (611) close to the housing (10), and the housing (10) being provided with a avoiding notch (11) for allowing an end foot group (90) of the PCB board (63) to extend out at a position corresponding to the PCB board (63), and the lower spring (62) being electrically connected to the PCB board (63) via the lower cover (61).

8. The lens driving motor according to claim 7, characterized in that: The outer periphery of the lower cover (61) has 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 outer shell (10) and the lap flange (612) are flush at their junction; and / or At least one positioning column (613) is provided on the installation wall (611), and at least one positioning hole (631) cooperating with the positioning column (613) is provided on the PCB board (63).

9. The lens driving motor according to claim 8, characterized in that: The overlapping flange (612) has a plurality of openings, and one end of the housing (10) close to the lower cover (61) has a plurality of protrusions that cooperate with the plurality of openings.

10. The lens driving motor according to claim 7, characterized in that: The lens driving motor further comprises a Hall chip (71), a capacitor (72) and an inductor (73), and the Hall chip (71), the capacitor (72) and the inductor (73) are all arranged on a side of the PCB board (63) facing the lens support body (50), and a clearance opening (614) is arranged on the mounting wall (611) at positions corresponding to the Hall chip (71), the capacitor (72) and the inductor (73).

11. The lens driving motor according to claim 10, characterized in that: The terminal pin group (90) comprises four control terminal pins (91), and the four control terminal pins (91) are electrically connected to the Hall chip (71).

12. The lens driving motor according to claim 7, characterized in that: The end pin group (90) comprises at least a first conductive end pin (92) and a second conductive end pin (93); the lower cover (61) is provided with a first connecting end pin and a second connecting end pin; the lower spring (62) comprises a first sub-spring (621) and a second sub-spring (622); the first conductive end pin (92) is electrically connected to the first sub-spring (621) via the first connecting end pin; the second conductive end pin (93) is electrically connected to the second sub-spring (622) via the second connecting end pin; the first sub-spring (621) and the second sub-spring (622) are connected via the drive coil (30); and the first conductive end pin (92) and / or the second conductive end pin (93) have a solder hole.

13. The lens driving motor according to any one of claims 1 to 6, characterized in that: The upper spring (80) is also provided with: A plurality of glue dispensing holes (83), and a plurality of glue storage grooves (54) are correspondingly arranged on the lens support body (50); and / or A plurality of glue dispensing grooves (84), wherein the plurality of glue dispensing grooves (84) are respectively located at portions where the upper spring (80) contacts the housing (10).

14. The lens driving motor according to any one of claims 1 to 6, characterized in that: A mounting column (12) is also provided at a corner inside the housing (10) to limit the position of the driving magnet (20).

15. A camera, characterized in that: A lens driving motor comprising the lens driving motor as claimed in any one of claims 1 to 14.

16. A mobile terminal, characterized in that: Comprising the camera of claim 15.

17. The mobile terminal according to claim 16, characterized in that: The mobile terminal includes at least one of a mobile phone, a portable information terminal and a notebook computer.

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